Lexmark E23x And E33x Service Manual E230 E232 E234 4505
User Manual: Service Manual La Biblioteca de los 8 bits
Open the PDF directly: View PDF
.
Page Count: 160 [warning: Documents this large are best viewed by clicking the View PDF Link!]
- Table of contents
- Laser notices
- Safety information
- Preface
- 1. General information
- 2. Diagnostic information
- Start
- Overview of the operator panel
- Operator panel codes
- Primary codes
- Ready / Power Saver
- Busy
- Hex Trace Ready
- Waiting
- Flushing / Resolution reduced
- Not ready
- Close door / Insert cartridge
- Load media
- Load manual feeder
- Print side two of duplex job
- Toner low
- Replace photoconductor kit
- Replace photoconductor kit (printer hard stop)
- Toner cartridge error / Toner cartridge is not installed
- Change invalid toner cartridge
- Invalid engine code / Invalid network code
- Programming engine code / Programming system code
- Cancel job / Reset printer
- Service error
- Printer error
- Secondary error codes
- Paper jam in the manual feeder
- Paper jams as it exits the tray into the printer
- Paper jams as a printed job exits the printer
- Complex page
- Insufficient printer memory
- Insufficient collation area
- Font error
- Defective flash
- Insufficient defrag memory
- Network interface errors
- Error communicating with host computer
- Memory full
- Short paper
- Flash full
- Unformatted flash
- Invalid engine code
- Invalid network code
- Primary codes
- Service information with secondary and tertiary light patterns
- Secondary error codes
- Tertiary service error codes
- Controller software
- Transfer roll
- Fuser, fan, or toner sensor error
- Codes 920 through 929 indicate a problem in the fuser (see “Fuser service check” on page253 for...
- Printhead, transport motor or RIP/engine communication error
- RIP to engine communication failure (controller card).
- NVRAM failure
- RAM memory error
- Network error
- Paper port communication failure
- Symptom tables
- Service checks
- Cold fuser service check
- Cooling fan service check
- Controller card service check
- Cover interlock switch service check
- Dead machine service check
- Fuser service check
- Hot fuser service check
- LVPS/HVPS service check
- Main motor service check
- Operator panel service check
- Printhead service check
- Paper feed service checks
- Parallel port service check
- Print quality service checks
- Using print quality test pages
- Transfer roll service check
- 3. Diagnostic aids
- 4. Repair information
- Removals
- Covers
- Fan removal
- Feed rollers (auto comp tires) removal
- Fuser idle gear links removal
- Fuser power cable removal
- Fuser removal
- Input roller clutch and lever removal (ACM clutch CBM)
- Input sensor #1 removal
- Input sensor #2 (manual) removal
- LVPS / HVPS card assembly removal
- LVPS / HVPS to controller card cable removal
- Manual feed clutch assembly removal
- Operator panel removal
- Paper exit guide assembly removal
- Printhead removal
- Toner level sensor cable removal
- Toner level sensor removal
- Transfer roll removal
- Transport motor cable removal
- Removals
- 5. Connector locations
- 6. Preventive maintenance
- 7. Parts catalog
- Index
- Part number index
Edition: June 2004
The following paragraph does not apply to any country where such provisions are
inconsistent with local law: LEXMARK INTERNATIONAL, INC. PROVIDES THIS
PUBLICATION “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR
IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow
disclaimer of express or implied warranties in certain transactions; therefore, this statement may
not apply to you.
This publication could include technical inaccuracies or typographical errors. Changes are
periodically made to the information herein; these changes will be incorporated in later editions.
Improvements or changes in the products or the programs described may be made at any time.
Comments may be addressed to Lexmark International, Inc., Department D22A/032-2, 740
West New Circle Road, Lexington, Kentucky 40550, U.S.A or e-mail at
ServiceInfoAndTraining@Lexmark.com. Lexmark may use or distribute any of the information
you supply in any way it believes appropriate without incurring any obligation to you. You can
purchase additional copies of publications related to this product by calling 1-800-553-9727. In
other countries, contact your point of purchase.
References in this publication to products, programs, or services do not imply that the
manufacturer intends to make these available in all countries in which it operates. Any reference
to a product, program, or service is not intended to state or imply that only that product,
program, or service may be used. Any functionally equivalent product, program, or service that
does not infringe any existing intellectual property right may be used instead. Evaluation and
verification of operation in conjunction with other products, programs, or services, except those
expressly designated by the manufacturer, are the user’s responsibility.
Lexmark, Lexmark with diamond design, and MarkVision are trademarks of Lexmark
International, Inc., registered in the United States and/or other countries.
Optra Forms is a trademark of Lexmark International, Inc.
PCL® is a registered trademark of the Hewlett-Packard Company.
PostScript® is a registered trademark of Adobe Systems Incorporated.
Other trademarks are the property of their respective owners.
© 2004 Lexmark International, Inc.
All rights reserved.
UNITED STATES GOVERNMENT RIGHTS
This software and any accompanying documentation provided under this agreement are
commercial computer software and documentation developed exclusively at private expense.
U.S.A. P/N 12G9399

iii
4505
Table of contents
Laser notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .vii
Safety information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xx
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xx
General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Overview of the operator panel . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Paper jams–how to clear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Tips on preventing jams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Types of print media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Diagnostic information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
POST (power–on self test) . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Overview of the operator panel . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Understanding the operator panel lights . . . . . . . . . . . . . . . . . 2-3
Common light sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Secondary errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Operator panel codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Primary codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Secondary error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Service information with secondary and tertiary light patterns . 2-29
Secondary error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30
Tertiary service error codes . . . . . . . . . . . . . . . . . . . . . . . . . 2-31
Symptom tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-44
POST symptom table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-44
Printer symptom table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45
Service checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47
Cold fuser service check. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47
Cooling fan service check . . . . . . . . . . . . . . . . . . . . . . . . . . 2-48
Controller card service check . . . . . . . . . . . . . . . . . . . . . . . . 2-49
Cover interlock switch service check . . . . . . . . . . . . . . . . . . 2-51
Dead machine service check . . . . . . . . . . . . . . . . . . . . . . . . 2-52
Fuser service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-53
Hot fuser service check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-56
LVPS/HVPS service check . . . . . . . . . . . . . . . . . . . . . . . . . 2-57
Main motor service check . . . . . . . . . . . . . . . . . . . . . . . . . . 2-58
iv Service Manual
4505
Operator panel service check. . . . . . . . . . . . . . . . . . . . . . . . .2-59
Printhead service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-61
Paper feed service checks . . . . . . . . . . . . . . . . . . . . . . . . . . .2-61
Parallel port service check . . . . . . . . . . . . . . . . . . . . . . . . . . .2-65
Print quality service checks . . . . . . . . . . . . . . . . . . . . . . . . . .2-66
Using print quality test pages . . . . . . . . . . . . . . . . . . . . . . . . .2-66
Transfer roll service check . . . . . . . . . . . . . . . . . . . . . . . . . .2-79
Diagnostic aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Configuration and diagnostic groups . . . . . . . . . . . . . . . . . . . . . .3-1
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Diagnostic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
Power–On operations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
Configuration menu selections. . . . . . . . . . . . . . . . . . . . . . . . .3-6
Diagnostics menu selections . . . . . . . . . . . . . . . . . . . . . . . . .3-12
Repair information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Removals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2
Fan removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6
Feed rollers (auto comp tires) removal. . . . . . . . . . . . . . . . . . .4-7
Fuser idle gear links removal . . . . . . . . . . . . . . . . . . . . . . . . . .4-7
Fuser power cable removal . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8
Fuser removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8
Input roller clutch and lever removal
(ACM clutch CBM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9
Input sensor #1 removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9
Input sensor #2 (manual) removal . . . . . . . . . . . . . . . . . . . . .4-10
LVPS / HVPS card assembly removal . . . . . . . . . . . . . . . . . .4-10
LVPS / HVPS to controller card cable removal . . . . . . . . . . .4-11
Manual feed clutch assembly removal . . . . . . . . . . . . . . . . . .4-11
Operator panel removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11
Paper exit guide assembly removal . . . . . . . . . . . . . . . . . . . .4-12
Printhead removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12
Toner level sensor cable removal . . . . . . . . . . . . . . . . . . . . .4-12
Toner level sensor removal . . . . . . . . . . . . . . . . . . . . . . . . . .4-13
Transfer roll removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-13
Transport motor cable removal . . . . . . . . . . . . . . . . . . . . . . .4-14
Connector locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
Front and rear views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
Power supply board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
Controller board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
Wiring diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4
v
4505
Preventive maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Parts catalog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
How to use this parts catalog . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .I-1
Part number index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .I-5
vi Service Manual
4505

Laser notices vii
4505
Laser notices
Laser notice
The printer is certified in the U.S. to conform to the requirements of
DHHS 21 CFR Subchapter J for Class I (1) laser products, and
elsewhere is certified as a Class I laser product conforming to the
requirements of IEC 60825-1.
Class I laser products are not considered to be hazardous. The
printer contains internally a Class IIIb (3b) laser that is nominally a 5
milliwatt gallium arsenide laser operating in the wavelength region of
770-795 nanometers. The laser system and printer are designed so
there is never any human access to laser radiation above a Class I
level during normal operation, user maintenance, or prescribed
service condition.
Laser
Der Drucker erfüllt gemäß amtlicher Bestätigung der USA die
Anforderungen der Bestimmung DHHS (Department of Health and
Human Services) 21 CFR Teil J für Laserprodukte der Klasse I (1).
In anderen Ländern gilt der Drucker als Laserprodukt der Klasse I,
der die Anforderungen der IEC (International Electrotechnical
Commission) 60825-1 gemäß amtlicher Bestätigung erfüllt.
Laserprodukte der Klasse I gelten als unschädlich. Im Inneren des
Druckers befindet sich ein Laser der Klasse IIIb (3b), bei dem es
sich um einen Galliumarsenlaser mit 5 Milliwatt handelt, der Wellen
der Länge 770-795 Nanometer ausstrahlt. Das Lasersystem und der
Drucker sind so konzipiert, daß im Normalbetrieb, bei der Wartung
durch den Benutzer oder bei ordnungsgemäßer Wartung durch den
Kundendienst Laserbestrahlung, die die Klasse I übersteigen würde,
Menschen keinesfalls erreicht.

viii Service Manual
4505
Avis relatif à l’utilisation de laser
Pour les Etats-Unis : cette imprimante est certifiée conforme aux
provisions DHHS 21 CFR alinéa J concernant les produits laser de
Classe I (1). Pour les autres pays : cette imprimante répond aux
normes IEC 60825-1 relatives aux produits laser de Classe I.
Les produits laser de Classe I sont considérés comme des produits
non dangereux. Cette imprimante est équipée d’un laser de Classe
IIIb (3b) (arséniure de gallium d’une puissance nominale de 5
milliwatts) émettant sur des longueurs d’onde comprises entre 770
et 795 nanomètres. L’imprimante et son système laser sont conçus
pour impossible, dans des conditions normales d’utilisation,
d’entretien par l’utilisateur ou de révision, l’exposition à des
rayonnements laser supérieurs à des rayonnements de Classe I .
Avvertenze sui prodotti laser
Questa stampante è certificata negli Stati Uniti per essere conforme
ai requisiti del DHHS 21 CFR Sottocapitolo J per i prodotti laser di
classe 1 ed è certificata negli altri Paesi come prodotto laser di
classe 1 conforme ai requisiti della norma CEI 60825-1.
I prodotti laser di classe non sono considerati pericolosi. La
stampante contiene al suo interno un laser di classe IIIb (3b)
all’arseniuro di gallio della potenza di 5mW che opera sulla
lunghezza d’onda compresa tra 770 e 795 nanometri. Il sistema
laser e la stampante sono stati progettati in modo tale che le
persone a contatto con la stampante, durante il normale
funzionamento, le operazioni di servizio o quelle di assistenza
tecnica, non ricevano radiazioni laser superiori al livello della
classe 1.

Laser notices ix
4505
Avisos sobre el láser
Se certifica que, en los EE.UU., esta impresora cumple los
requisitos para los productos láser de Clase I (1) establecidos en el
subcapítulo J de la norma CFR 21 del DHHS (Departamento de
Sanidad y Servicios) y, en los demás países, reúne todas las
condiciones expuestas en la norma IEC 60825-1 para productos
láser de Clase I (1).
Los productos láser de Clase I no se consideran peligrosos. La
impresora contiene en su interior un láser de Clase IIIb (3b) de
arseniuro de galio de funcionamiento nominal a 5 milivatios en una
longitud de onda de 770 a 795 nanómetros. El sistema láser y la
impresora están diseñados de forma que ninguna persona pueda
verse afectada por ningún tipo de radiación láser superior al nivel de
la Clase I durante su uso normal, el mantenimiento realizado por el
usuario o cualquier otra situación de servicio técnico.
Declaração sobre Laser
A impressora está certificada nos E.U.A. em conformidade com os
requisitos da regulamentação DHHS 21 CFR Subcapítulo J para a
Classe I (1) de produtos laser. Em outros locais, está certificada
como um produto laser da Classe I, em conformidade com os
requisitos da norma IEC 60825-1.
Os produtos laser da Classe I não são considerados perigosos.
Internamente, a impressora contém um produto laser da Classe IIIb
(3b), designado laser de arseneto de potássio, de 5 milliwatts
,operando numa faixa de comprimento de onda entre 770 e 795
nanómetros. O sistema e a impressora laser foram concebidos de
forma a nunca existir qualquer possiblidade de acesso humano a
radiação laser superior a um nível de Classe I durante a operação
normal, a manutenção feita pelo utilizador ou condições de
assistência prescritas.

xService Manual
4505
Huomautus laserlaitteesta
Tämä kirjoitin on Yhdysvalloissa luokan I (1) laserlaitteiden DHHS
21 CFR Subchapter J -määrityksen mukainen ja muualla luokan I
laserlaitteiden IEC 60825-1 -määrityksen mukainen.
Luokan I laserlaitteiden ei katsota olevan vaarallisia käyttäjälle.
Kirjoittimessa on sisäinen luokan IIIb (3b) 5 milliwatin
galliumarsenidilaser, joka toimii aaltoalueella 770 - 795 nanometriä.
Laserjärjestelmä ja kirjoitin on suunniteltu siten, että käyttäjä ei
altistu luokan I määrityksiä voimakkaammalle säteilylle kirjoittimen
normaalin toiminnan, käyttäjän tekemien huoltotoimien tai muiden
huoltotoimien yhteydessä.
VARO! Avattaessa ja suojalukitus ohitettaessa olet alttiina
näkymättömälle lasersäteilylle. Älä katso säteeseen.
VARNING! Osynlig laserstrålning när denna del är öppnad och
spärren är urkopplad. Betrakta ej strålen.
Laser-notis
Denna skrivare är i USA certifierad att motsvara kraven i DHHS 21
CFR, underparagraf J för laserprodukter av Klass I (1). I andra
länder uppfyller skrivaren kraven för laserprodukter av Klass I enligt
kraven i IEC 60825-1.
Laserprodukter i Klass I anses ej hälsovådliga. Skrivaren har en
inbyggd laser av Klass IIIb (3b) som består av en laserenhet av
gallium-arsenid på 5 milliwatt som arbetar i våglängdsområdet 770-
795 nanometer. Lasersystemet och skrivaren är utformade så att det
aldrig finns risk för att någon person utsätts för laserstrålning över
Klass I-nivå vid normal användning, underhåll som utförs av
användaren eller annan föreskriven serviceåtgärd.

Laser notices xi
4505
Laser-melding
Skriveren er godkjent i USA etter kravene i DHHS 21 CFR,
underkapittel J, for klasse I (1) laserprodukter, og er i andre land
godkjent som et Klasse I-laserprodukt i samsvar med kravene i IEC
60825-1.
Klasse I-laserprodukter er ikke å betrakte som farlige. Skriveren
inneholder internt en klasse IIIb (3b)-laser, som består av en
gallium-arsenlaserenhet som avgir stråling i bølgelengdeområdet
770-795 nanometer. Lasersystemet og skriveren er utformet slik at
personer aldri utsettes for laserstråling ut over klasse I-nivå under
vanlig bruk, vedlikehold som utføres av brukeren, eller foreskrevne
serviceoperasjoner.
Avís sobre el Làser
Segons ha estat certificat als Estats Units, aquesta impressora
compleix els requisits de DHHS 21 CFR, apartat J, pels productes
làser de classe I (1), i segons ha estat certificat en altres llocs, és un
producte làser de classe I que compleix els requisits d’IEC 60825-1.
Els productes làser de classe I no es consideren perillosos. Aquesta
impressora conté un làser de classe IIIb (3b) d’arseniür de gal.li,
nominalment de 5 mil.liwats, i funciona a la regió de longitud d’ona
de 770-795 nanòmetres. El sistema làser i la impressora han sigut
concebuts de manera que mai hi hagi exposició a la radiació làser
per sobre d’un nivell de classe I durant una operació normal, durant
les tasques de manteniment d’usuari ni durant els serveis que
satisfacin les condicions prescrites.

xii Service Manual
4505
Japanese Laser Notice
Chinese Laser Notice

Laser notices xiii
4505
Korean Laser Notice
xiv Service Manual
4505

Safety information xv
4505
Safety information
•The safety of this product is based on testing and approvals of
the original design and specific components. The manufacturer
is not responsible for safety in the event of use of unauthorized
replacement parts.
•The maintenance information for this product has been
prepared for use by a professional service person and is not
intended to be used by others.
•There may be an increased risk of electric shock and personal
injury during disassembly and servicing of this product.
Professional service personnel should understand this and take
necessary precautions.
•CAUTION: When you see this symbol, there is a
danger from hazardous voltage in the area of the
product where you are working. Unplug the product
before you begin, or use caution if the product must
receive power in order to perform the task.
Consignes de sécurité
•La sécurité de ce produit repose sur des tests et des
agréations portant sur sa conception d'origine et sur des
composants particuliers. Le fabricant n'assume aucune
responsabilité concernant la sécurité en cas d'utilisation de
pièces de rechange non agréées.
•Les consignes d'entretien et de réparation de ce produit
s'adressent uniquement à un personnel de maintenance
qualifié.
•Le démontage et l'entretien de ce produit pouvant présenter
certains risques électriques, le personnel d'entretien qualifié
devra prendre toutes les précautions nécessaires.
•ATTENTION : Ce symbole indique la présence
d'une tension dangereuse dans la partie du produit
sur laquelle vous travaillez. Débranchez le produit
avant de commencer ou faites preuve de vigilance si
l'exécution de la tâche exige que le produit reste sous
tension.

xvi Service Manual
4505
Norme di sicurezza
•La sicurezza del prodotto si basa sui test e sull'approvazione
del progetto originale e dei componenti specifici. Il produttore
non è responsabile per la sicurezza in caso di sostituzione non
autorizzata delle parti.
•Le informazioni riguardanti la manutenzione di questo prodotto
sono indirizzate soltanto al personale di assistenza autorizzato.
•Durante lo smontaggio e la manutenzione di questo prodotto,
il rischio di subire scosse elettriche e danni alla persona è più
elevato. Il personale di assistenza autorizzato deve, quindi,
adottare le precauzioni necessarie.
•ATTENZIONE: Questo simbolo indica la presenza
di tensione pericolosa nell'area del prodotto.
Scollegare il prodotto prima di iniziare o usare
cautela se il prodotto deve essere alimentato per
eseguire l'intervento.
Sicherheitshinweise
•Die Sicherheit dieses Produkts basiert auf Tests und
Zulassungen des ursprünglichen Modells und bestimmter
Bauteile. Bei Verwendung nicht genehmigter Ersatzteile wird
vom Hersteller keine Verantwortung oder Haftung für die
Sicherheit übernommen.
•Die Wartungsinformationen für dieses Produkt sind
ausschließlich für die Verwendung durch einen
Wartungsfachmann bestimmt.
•Während des Auseinandernehmens und der Wartung des
Geräts besteht ein zusätzliches Risiko eines elektrischen
Schlags und körperlicher Verletzung. Das zuständige
Fachpersonal sollte entsprechende Vorsichtsmaßnahmen
treffen.
•ACHTUNG: Dieses Symbol weist auf eine
gefährliche elektrische Spannung hin, die in diesem
Bereich des Produkts auftreten kann. Ziehen Sie vor
den Arbeiten am Gerät den Netzstecker des Geräts,
bzw. arbeiten Sie mit großer Vorsicht, wenn das
Produkt für die Ausführung der Arbeiten an den
Strom angeschlossen sein muß.

Safety information xvii
4505
Pautas de Seguridad
•La seguridad de este producto se basa en pruebas y
aprobaciones del diseño original y componentes específicos.
El fabricante no es responsable de la seguridad en caso de uso
de piezas de repuesto no autorizadas.
•La información sobre el mantenimiento de este producto está
dirigida exclusivamente al personal cualificado de
mantenimiento.
•Existe mayor riesgo de descarga eléctrica y de daños
personales durante el desmontaje y la reparación de la
máquina. El personal cualificado debe ser consciente de este
peligro y tomar las precauciones necesarias.
•PRECAUCIÓN: este símbolo indica que el voltaje
de la parte del equipo con la que está trabajando es
peligroso. Antes de empezar, desenchufe el equipo
o tenga cuidado si, para trabajar con él, debe
conectarlo.
Informações de Segurança
•A segurança deste produto baseia-se em testes e aprovações
do modelo original e de componentes específicos. O fabricante
não é responsável pela segunrança, no caso de uso de peças
de substituição não autorizadas.
•As informações de segurança relativas a este produto
destinam-se a profissionais destes serviços e não devem ser
utilizadas por outras pessoas.
•Risco de choques eléctricos e ferimentos graves durante a
desmontagem e manutenção deste produto. Os profissionais
destes serviços devem estar avisados deste facto e tomar os
cuidados necessários.
•CUIDADO: Quando vir este símbolo, existe a
possível presença de uma potencial tensão perigosa
na zona do produto em que está a trabalhar. Antes
de começar, desligue o produto da tomada eléctrica
ou seja cuidadoso caso o produto tenha de estar
ligado à corrente eléctrica para realizar a tarefa
necessária.

xviii Service Manual
4505
Informació de Seguretat
•La seguretat d'aquest producte es basa en l'avaluació i
aprovació del disseny original i els components específics.
El fabricant no es fa responsable de les qüestions de
seguretat si s'utilitzen peces de recanvi no autoritzades.
•La informació pel manteniment d’aquest producte està
orientada exclusivament a professionals i no està destinada
a ningú que no ho sigui.
•El risc de xoc elèctric i de danys personals pot augmentar
durant el procés de desmuntatge i de servei d’aquest producte.
El personal professional ha d’estar-ne assabentat i prendre
les mesures convenients.
•PRECAUCIÓ: aquest símbol indica que el voltatge
de la part de l'equip amb la qual esteu treballant és
perillós. Abans de començar, desendolleu l'equip
o extremeu les precaucions si, per treballar amb
l'equip, l'heu de connectar.

Safety information xix
4505

xx Service Manual
4505
Preface
This manual contains maintenance procedures for service
personnel. It is divided into the following chapters:
1. General information contains a general description of the
printer and the maintenance approach used to repair it. Special
tools and test equipment are listed in this chapter, as well as
general environmental and safety instructions.
2. Diagnostic information contains an error indicator table,
symptom tables, and service checks used to isolate failing field
replaceable units (FRUs (field replaceable unit)).
3. Diagnostic aids contains tests and checks used to locate or
repeat symptoms of printer problems.
4. Repair information provides instructions for making printer
adjustments and removing and installing field replaceable units
(FRUs).
5. Connector locations uses illustrations to identify the connector
locations and test points on the printer.
6. Preventive maintenance contains the lubrication specifications
and recommendations to prevent problems.
7. Parts catalog contains illustrations and part numbers for
individual FRUs.
Definitions
Note: A note provides additional information.
Warning: A warning identifies something that might damage the
product hardware or software.
CAUTION: A caution identifies something that might cause a
servicer harm.
CAUTION: When you see this symbol, there is a
danger from hazardous voltage in the area of the
product where you are working. Unplug the product
before you begin, or use caution if the product must
receive power in order to perform the task.

General information 1-1
4505
1. General information
The Lexmark™ E23x, E33x printers are monochrome laser printers
designed for single users or small workgroups. There are four
models:
•E230, 8MB memory standard, a USB (universal serial bus) port,
a parallel port, and prints 18 pages per minute.
Note: The optional 550-sheet tray is not supported.
•E232, 16MB of memory standard, a parallel port, a USB port,
and prints 22 pages per minute.
•E330, 32MB of memory standard, a parallel port, a USB port,
and prints 27 pages per minute.
•E332n, 32MB of memory standard, an integrated Ethernet
adapter, a parallel port, a USB port, and prints 27 pages per
minute.
•E234, 32MB of memory standard, a parallel port, a USB port,
and prints 25 pages per minute.
•E234n, 32MB of memory standard, an integrated Ethernet
adapter, a parallel port, a USB port, and prints 27 pages per
minute.

1-2 Service Manual
4505
The differences between the models are listed in the following table.
Item 4505-100
Lexmark
E230
4505-200
Lexmark
E232
4505-300
Lexmark E330
4505-310
Lexmark
E332n
Base memory 8MB 16MB 32MB
Maximum
memory 8MB 80MB 160MB
Paper inputs •250–sheet
tray
•Single–
sheet
manual
feeder
•250–sheet tray
•Single–sheet manual feeder
•Optional 550–sheet drawer
Emulations HBP (host–
based
printing), PCL
(printer control
language) 5e,
and Windows/
Macintosh/
Linux
compatibility
HBP, PCL 6,
and Windows/
Macintosh/
Linux
compatibility
HBP, PostScript 3, PCL 6, PPDS
(personal printer data stream)
and Windows/Macintosh/Linux
compatibility
Connectivity USB and Parallel USB, Parallel,
and 10/100
Base-TX
Ethernet
Toner cartridge
yield 1,500 pages*
(starter toner cartridge) 2,500 pages
Photoconductor
kit yield 30,000 pages*
* Yield based on approximately 5% coverage of pages.

General information 1-3
4505
Overview of the operator panel
The operator panel has six lights and two buttons. See
“Operator panel codes” on page 2-8 for more information.
•Press and release to resume printing.
•Press and release twice quickly to display a secondary
error code following an error.
•Press and release to cancel the job currently printing.
•Press and hold until all of the lights come on to reset the
printer.
Continue
Cancel
Ready
Toner Low /
Replace PC Kit
Load Paper
Paper Jam
Error

1-4 Service Manual
4505
Paper jams–how to clear
When a paper jam occurs, the printer stops operating and the
operator panel’s and lights come on. Press and release
twice quickly to display the specific secondary error paper
jam light sequence. See “Secondary errors” on page 2-6 for
more information.
We recommend the entire paper path be cleared when a paper
jam occurs.
To clear a paper jam:
1. If the paper is feeding from a tray, remove the tray, and
then remove any jams.
2. Open the front cover and remove the print cartridge
assembly.
3. Remove any jams located in the area behind the print
cartridge assembly.
4. Lift the flap at the front of the printer and remove any jams
located beneath the flap.
5. Open the rear exit and remove any jams.
6. After you have cleared the jams, reinstall the print cartridge
assembly, make sure all printer covers and trays are closed, and
then press the button to resume printing.
Note: Pages caught in the paper jam will reprint.

General information 1-5
4505
Tips on preventing jams
You can avoid most paper jams by correctly loading paper and
specialty media.
The following hints can help you avoid paper jams:
•Do not load wrinkled, creased, or damp paper.
•Never mix media types within a tray.
•Flex, fan, and straighten paper before you load it.
•Do not exceed the maximum stack height.
•Push all trays firmly into the printer after loading them.
•Make sure the guides in the trays are positioned snugly against
the paper or specialty media.
•Do not remove paper trays while a job is printing. Wait for a
Load Paper light sequence before you remove the tray.
•Before loading transparencies, fan the stack to prevent sheets
from sticking together.
•Do not use envelopes that:
–Have excessive curl
–Are stuck together
–Are damaged in any way
–Contain windows, holes, perforations, cutouts, or embossing
–Use metal clasps, string ties, or metal folding bars
–Have postage stamps attached
–Have any exposed adhesive when the flap is in the sealed
position
•Use only recommended paper. Refer to the Card Stock & Label
Guide available on the Lexmark Web site at www.lexmark.com for
more information about which paper provides optimum results for
current printing environment.

1-6 Service Manual
4505
Tools
The removal and adjustment procedures require the following tools
and equipment:
•Magnetic tip Phillips screwdrivers, large and small
•Volt ohmmeter

General information 1-7
4505
Types of print media
Ensure trays are properly loaded. Never mix media types
within a tray.
Source Sizes Types Weight Capacity
(sheets)
Tray 1
(250-sheet
tray)
A4, A5,
JIS B5,
letter, legal,
executive,
folio,
statement,
Universal‡
Plain paper,
transparencies,
labels
60–90 g/m2
(16–24 lb) •250 paper
•labels
•50 trans-
parencies
Tray 2
(550-sheet
tray)
A4, A5,
JIS B5,
letter, legal,
executive,
folio,
statement,
Universal‡
Plain paper,
transparencies,
labels
60–163 g/m2
(16–43 lb) •550 paper
•labels
•50
transpar-
encies
•card stock
Manual
feeder A4, A5,
JIS B5,
letter, legal,
executive,
folio,
statement,
Universal‡
Plain paper,
transparencies,
labels, card
stock†
60–163 g/m2
(16–43 lb) 1
7¾, 9, 10,
DL, C5, B5,
other
Envelopes
† Card stock up to 90# Index. Grain short is recommended.
‡ Universal size range: 76–216 x 127–356 mm (3.0–8.5 x 5.0–
14.0 in.) (includes 3 x 5 in. cards).

1-8 Service Manual
4505
Abbreviations
ACM Auto Comp Mechanism (or paper feed)
ASIC Application Specific Integrated Circuit
CBM Complete Bill Of Material
DIMM Dual In-Line Memory Module
ENA External Network Adapter
FRU Field Replaceable Unit
HBP Host Based Printing
HV High Voltage
HVPS High Voltage Power Supply
INTL International
LVPS Low Voltage Power Supply
NVRAM Nonvolatile Random Access Memory
PCL Printer Control Language
POR Power-On Reset
POST Power-On Self Test
PPDS Personal Printer Data Stream
PRC Peoples' Republic of China
PSO Participating Standards Organization
RIP Raster Image Processor
SDR Synchronous Dynamic RAM
USB Universal Serial Bus
V ac Volts alternating current
V dc Volts direct current

Diagnostic information 2-1
4505
2. Diagnostic information
Start
POST (power–on self test)
When you turn the printer on, it performs a POST. Check for correct
POST functioning of the base printer by observing the following
process:
1. All operator panel lights flash irregularly for approximately
10 seconds.
2. If there is a problem in the printer such as a paper jam, the
panel lights indicate the problem. See “Common light
sequences” on page 2-3 for more information.
3. Otherwise, the light flashes until the fuser comes up to
temperature (5–20 additional seconds depending on the initial
temperature of the fuser).
Note: The operator panel has six lights and two buttons. The
button has a light in it.

2-2 Service Manual
4505
Overview of the operator panel
•Press and release to resume printing.
•Press and release twice quickly to display a secondary
error code (following an error - and lights on).
•Press and release to cancel the job currently printing.
•Press and hold until all of the lights come on to reset the
printer.
Continue
Cancel
Ready
Toner Low /
Replace PC Kit
Load Paper
Paper Jam
Error

Diagnostic information 2-3
4505
Understanding the operator panel lights
The operator panel lights mean different things, depending on their
sequence. Lights that are off, on, and/or blinking indicate printer
conditions such as printer status, intervention, or service.
The following tables show the most common light sequences.
Note: See “Primary codes” on page 2-8 for more information.
Common light sequences
See “Overview of the operator panel” on page 2-2 for icon
information.
●Light on
Light is off
✷Light blinking
xLight blinking slow
Printer condition
●Ready / Power
Saver
✷Busy
xHex Trace Ready
●●Waiting
✷✷Flushing /
Resolution
reduced
●Not ready (printer
offline)
●Close door /
Insert cartridge
●●Load media

2-4 Service Manual
4505
●✷Load manual
feeder
✷●Print side two of
duplex job
●Toner low
●✷ Replace
photoconductor
kit
●✷ ✷Replace
photoconductor
kit (printer hard
stop)
✷●Missing or
defective toner
cartridge
●●Unsupported
toner cartridge
●✷Change cartridge,
invalid refill
●●Invalid engine
code /
Invalid network
code
●●● Programming
engine code /
Programming
system code
●● ● ●●●Cancel job /
Reset printer
Printer condition

2-6 Service Manual
4505
Secondary errors
When the and lights are both on, a secondary error has
occurred. Press and release twice quickly to display the
secondary error code light sequence. The following table shows
what these light sequences mean.
Printer
condition
●●Printer error /
Secondary
error code
●✷●Paper jams in
the manual
feeder
●●●Paper jams as
it exits the tray
into the printer
●●●Paper jams as
a printed job
exits the printer
●● ●Complex page
●✷●Insufficient
printer memory
●● ●Insufficient
collation area
●✷●Font error
●●●Defective flash
●✷●Insufficient
defrag memory
●●●Network
interface errors
●✷●Error
communicating
with host
computer
●●● ●Memory full

Diagnostic information 2-7
4505
●● ● ●
Short paper
●●●●Unformatted
flash
●● ●●Flash full
●●●Invalid engine
code
●✷●Invalid network
code
Paper jam secondary codes
●● ● 200 Paper jam
input sensor
●●●201 Paper jam
between input
and exit
sensors
●●●202 Paper jam
exit sensor
●●●●241 Paper jam
Tray 1 jam
●● ●● 242 Paper Jam
Tray 2 jam
●✷●251 Paper jam
manual feeder
Printer
condition

2-8 Service Manual
4505
Operator panel codes
The following tables explain the primary light sequences, or codes,
and secondary error codes, what they mean and how to clear them.
Primary codes
Ready / Power Saver
Light sequence Meaning Action:
•Printer ready to receive
and process data.
•Printer is in Power
Saver mode.
•Send a print job.
•Press to print the
menu settings pages
for a list of current
printer settings.
•Press and hold to
reset the printer.
Note: To change the
Power Saver setting, use
the Local Printer Setup
Utility. See User’s
Reference for more
information.

Diagnostic information 2-9
4505
Busy
Light sequence Meaning Action:
•Printer is busy
receiving and
processing data or
printing.
•Printer is
defragmenting the flash
memory to reclaim
storage space
occupied by deleted
resources.
•Printer is formatting the
flash memory.
•Printer is storing
resources, such as
fonts or macros, in
flash memory.
•Printer is printing a
directory, font list,
menu settings pages,
or Print Quality Test
Pages.
•Busy:
–Wait for message to
clear.
–Press and release
to cancel print
job.
–Press and hold to
reset printer.
•Defragmenting flash,
formatting flash, or
programming flash:
–Wait for message to
clear.
–Warning: Do not turn
the printer off while
this message is
displayed.
•Printing a directory, a
font list, menu settings
pages, or Print Quality
Test Pages:
–Wait for the pages to
print. The Busy
message is displayed
as the pages print.
The light is on
when printing stops.
–Press and release
to cancel
printing.
–Press and hold to
reset printer.
•Receiving/processing
data from a host
interface:
–Wait for message to
clear.
–Press and release
to stop
processing.
–Press and hold
to reset printer.

2-10 Service Manual
4505
Hex Trace Ready
Waiting
Light sequence Meaning Action:
Printer is in the Ready
mode and Hex Trace is
active.
•Hex Trace helps
troubleshoot printing
problems. After
resolving the problem,
turn off the printer to
exit Hex Trace.
•Or, press and hold
to reset the printer.
Light sequence Meaning Action:
Printer is waiting until a
print timeout occurs, or
until it receives additional
data.
•Press and release
to print contents of the
print buffer.
•Press and release
to cancel the print job.
•Press and hold to
reset the printer.

Diagnostic information 2-11
4505
Flushing / Resolution reduced
Not ready
Light sequence Meaning Action:
•Printer is flushing
corrupted print data.
•Printer is processing
data or printing pages,
but the resolution of a
page in the current
print job is reduced
from 600 dots per inch
(dpi) to 300 dpi to
prevent a memory full
error.
•Wait until is
displayed to print other
jobs.
•Press and release
to cancel print job.
•Press and hold to
reset printer.
Light sequence Meaning Action:
Printer is not ready to
receive or process data,
or the printer ports are
offline.
•Press to return to
or Busy state.
•Press and release
to cancel print job.
•Press and hold to
reset printer.

2-12 Service Manual
4505
Close door / Insert cartridge
Load media
Light sequence Meaning Action:
The printer door is open. Close the door.
Light sequence Meaning Action:
The printer is out of
media, or the media did
not feed properly.
•Load media into tray 1
or the optional
550-sheet tray and
press to resume
printing.
•Check that the media is
loaded correctly in
tray 1 or the optional
550-sheet tray.
•Press to cancel
the print job.

Diagnostic information 2-13
4505
Load manual feeder
Print side two of duplex job
Light sequence Meaning Action:
Printer prompts to load a
single sheet of media in
the manual feeder.
•Load media, with the
side to be printed
facing the front of the
printer, into the manual
feeder.
•Press to resume
printing.
•Press and hold to
reset printer.
Light sequence Meaning Action:
Print the other side of
duplex print job. •Reinsert print job in
tray 1 using the
instructions in the
driver pop-up menu to
orient the pages
correctly.
•Press to resume
printing.
•Press and hold to
reset printer.

2-14 Service Manual
4505
Toner low
Replace photoconductor kit
Light sequence Meaning Action:
•Printer is ready to
receive and process
data.
•The toner in the toner
cartridge is getting low.
•Send a print job.
•Press to print the
menu settings page for
a list of current
settings.
•Remove the toner
cartridge and shake it
to extend the life of the
cartridge.
•Replace the toner
cartridge.
•Press and hold to
reset printer.
Note: The light
may not come on if the
starter toner cartridge is
installed in a base printer
model.
Light sequence Meaning Action:
The photoconductor kit’s
drum is full and needs
replacing.
•Press to resume
printing.
•Replace the
photoconductor kit.

Diagnostic information 2-15
4505
Replace photoconductor kit (printer hard stop)
Toner cartridge error / Toner cartridge is not installed
Light sequence Meaning Action:
The photoconductor kit’s
drum is full and needs
replacing. No pages print
until the photoconductor
kit is replaced.
•Replace the
photoconductor kit.
Light sequence Meaning Action:
The toner cartridge is not
installed, or the printer
detects a toner cartridge
error.
•If the toner cartridge is
not installed, install it.
•If the toner cartridge is
installed, remove it and
install a new toner
cartridge.

2-16 Service Manual
4505
Change invalid toner cartridge
Invalid engine code / Invalid network code
Light sequence Meaning Action:
The toner cartridge being
used is not designed for
this printer.
Install a toner cartridge
compatible to printer.
Light sequence Meaning Action:
The code in an internal
print server has not been
programmed, or the
programmed code is not
valid.
•Download valid
network code to the
internal print server.
•Press twice
quickly to see the
secondary error code.

Diagnostic information 2-17
4505
Programming engine code / Programming system code
Cancel job / Reset printer
Light sequence Meaning Action:
New code is being
programmed into the
engine or firmware code
flash.
Wait for the message to
clear. When the printer
has finished programming
the code, it performs a
soft reset.
Light sequence Meaning Action:
•The current print job is
canceled.
•The printer is resetting
to the user default
settings.
–Any active print jobs
are canceled.
–A user default setting
remains in effect until
changed or until
restored to factory
default settings.
Wait for the message to
clear.

2-18 Service Manual
4505
Service error
Printer error
Light sequence Meaning Action:
The printer has a service
error and printing has
stopped.
Turn the printer off and
back on.
If the lights are still
blinking, contact the place
where printer was
purchased.
Light sequence Meaning Action:
The printer has one of the
following errors:
•Memory is full,
insufficient to save
what is in the buffer, or
insufficient to
defragment flash
memory.
•A page is too complex
to print or is shorter
than the set page
margins.
•Resolution of a
formatted page is
reduced to 300 dpi.
•A font error occurred.
•Communication with
the host computer is
lost.
•Press twice
quickly to see the
secondary error code.
See “Secondary error
codes” on page 2-19
for more information.
•Press to clear the
secondary message.

Diagnostic information 2-19
4505
Secondary error codes
•When the and lights are both on, a secondary error has
occurred. Press and release twice quickly to display the
secondary error code light sequence.
•When the and lights are both on, a paper jam
secondary error has occurred.
Press and release twice to display the secondary error code
light sequence.
The following tables show what these light sequences mean and
what to do.

2-20 Service Manual
4505
Paper jam in the manual feeder
Paper jams as it exits the tray into the printer
Light sequence Meaning Action:
A paper jam has occurred
in the manual feeder. Clear the paper jam.
Light sequence Meaning Action:
A paper jam has occurred
as the paper is exiting the
paper tray and entering
the printer.
Clear the paper jam.

Diagnostic information 2-21
4505
Paper jams as a printed job exits the printer
Complex page
Light sequence Meaning Action:
A paper jam has occurred
as the paper is exiting the
printer.
Clear the paper jam.
Light sequence Meaning Action:
The page may not print
correctly because the
print information on the
page is too complex (that
is, too large for the
printer’s memory).
•Press to clear the
message and continue
processing the print job
(some of the print data
may be lost).
•To avoid this error in
the future:
–Reduce the
complexity of the
page by reducing the
amount of text or
graphics on the page
and deleting
unnecessary
downloaded fonts or
macros.
–Set Page Protect to
on in the Local
Printer Setup Utility.
•Install additional printer
memory.

2-22 Service Manual
4505
Insufficient printer memory
Insufficient collation area
Light sequence Meaning Action:
The printer does not have
enough memory to save
the data in the buffer.
•Install additional
memory.
•Press to continue
printing the job.
•Press to cancel
the print job.
Light sequence Meaning Action:
The printer memory does
not have the free space
necessary to collate the
print job. This may
happen due to one of
these errors:
•Memory is full.
•A page is too complex
to print.
•A page is shorter than
the set page margins.
•Memory is insufficient
to save what is in the
buffer.
•Press to clear the
message and continue
printing the job (the job
may not print correctly.)
•Press and release
to cancel the print job.
•Press and hold to
reset the printer.
•To avoid this error in
the future:
–Simplify the print job.
Reduce the
complexity of the
page by reducing the
amount of text or
graphics on the page
and deleting
unnecessary
downloaded fonts or
macros.
•Install additional printer
memory.

Diagnostic information 2-23
4505
Font error
Defective flash
Light sequence Meaning Action:
The printer has received
a request for a PPDS font
which is not installed.
•Press and release
to cancel the print job.
•Press and hold to
reset the printer.
•Press and release
to clear the message
and continue printing.
Light sequence Meaning Action:
The printer detects
defective flash memory. •Press to clear the
message and continue
printing.
–Downloaded fonts
and macros not
previously stored in
flash memory are
deleted.
•Install flash memory.

2-24 Service Manual
4505
Insufficient defrag memory
Network interface errors
Light sequence Meaning Action:
The printer has
insufficient memory to
free unused space in
flash memory.
•Delete fonts, macros,
and other data in RAM.
•Install additional printer
memory.
Light sequence Meaning Action:
The printer cannot
establish communication
with the network.
Press to clear the
message and continue
printing (the job may not
print correctly).

Diagnostic information 2-25
4505
Error communicating with host computer
Memory full
Light sequence Meaning Action:
The printer has lost the
connection to an external
print server (also called
an external network
adapter or external
network adapter (ENA)).
This light sequence is
displayed if your printer is
connected to the network,
but it cannot detect the
print server when you turn
on the printer.
•Make sure the cable
connecting the ENA
and the printer is
securely attached.
•Turn the printer off and
then on to reset the
printer.
•Press and hold to
reset the printer.
Light sequence Meaning Action:
The printer is processing
data, but the memory
used to store pages is full.
•Press to clear the
message and continue
printing the job (the job
may not print correctly).
•Press and release
to cancel the print job.
•Press and hold to
reset the printer.
•To avoid this error in
the future:
–Simplify the print job.
Reduce the
complexity of the
page by reducing the
amount of text or
graphics on the page
and deleting
unnecessary
downloaded fonts or
macros.
•Install additional printer
memory.

2-26 Service Manual
4505
Short paper
Flash full
Light sequence Meaning Action:
The paper length is too
short to print the
formatted data. This
occurs when the printer
does not know the media
size loaded in the tray, or
there is a problem feeding
the media.
•Make sure the print
media you loaded is
large enough.
•Open the front cover,
clear the paper path
and close the cover to
resume printing.
•Press to clear the
message and continue
printing the job.
•Press to cancel
the print job.
Light sequence Meaning Action:
There is not enough free
space in the flash
memory to store the data
you are trying to
download.
•Delete fonts, macros,
and other data stored
on the flash memory to
free up space.
•Press to clear the
message and continue
printing.
–Downloaded fonts
and macros not
previously stored in
flash memory are
deleted.
•Install flash memory
with more storage
capacity.
•Press and release
to cancel the print job.
•Press and hold to
reset the printer.

Diagnostic information 2-27
4505
Unformatted flash
Invalid engine code
Light sequence Meaning Action:
The printer detects
unformatted flash
memory.
•Press to clear the
message and continue
printing. The job may
not print correctly.
•Reformat the flash
memory. Refer to the
Technical Reference on
Lexmark’s Web site for
more information.
•If the error message
remains, the flash
memory may be
defective and should
be replaced.
Light sequence Meaning Action:
The code in an internal
print server has not been
programmed, or the
programmed code is not
valid.
Download valid engine
code to the internal print
server.

2-28 Service Manual
4505
Invalid network code
Light sequence Meaning Action:
The code in an internal
print server has not been
programmed, or the
programmed code is not
valid.
Download valid network
code to the internal print
server.

Diagnostic information 2-29
4505
Service information with secondary and tertiary
light patterns
All service errors are indicated by all lights flashing as the primary
notification or code. The secondary code indicates an area or
function which has the error. Tertiary codes (shown on the following
pages) indicate specific device errors. Double click to see the
secondary code. Double click again to see the tertiary code.
Note: All lights flashing simultaneously, as a result of sending data
to the printer, may indicate a code problem. Call the next level of
support.
●Light on
Light off
✷Light blinking
xLight blinking slow
Double
Click
Double
Click
Double
Click
D
o
u
b
l
e
C
l
i
c
k
Primary
Codes
Secondary
Codes
Tertiary
Codes

2-30 Service Manual
4505
Secondary error codes
Secondary codes
Lights Primary
code
901
91x
92x
93x
94x
95x
96x
97x
98x
99x
Continue
✷ ✷✷✷✷✷✷✷✷✷✷
Ready
✷
Toner Low
/
Replace
PC Kit
✷✷✷
Load
Paper
✷✷✷✷✷
Paper Jam
✷✷✷✷✷
Error
✷ ✷✷✷✷✷
Software
DC motor or transfer roll
Fuser or toner sensor
Printhead, drive motor, RIP to engine
RIP to engine communication, engine
electronics
Controller card, specifically, NVRAM, ROM or
NAND
RAM memory
Network
Paper port communications
Device system card
Diagnostic information 2-31
4505
Tertiary service error codes
Service error codes are generally non-recoverable except in an
intermittent condition when you can POR (power-on reset) the
printer to temporarily recover from the error.
Note: All service errors are initially communicated by all lights
flashing which is the primary indication or code. For brevity, this
indication is not repeated in the following codes.
1. Controller software error/illegal trap (90x)
Call the next level of support for a 900 error.
For the other errors, which indicate a faulty programming
process or faulty component on the controller card, replace the
controller card.

2-32 Service Manual
4505
Controller software
Tertiary codes
Lights
900
901
902
903
904
905
906
Continue
✷
Ready
● ✷✷✷✷✷✷✷
Toner Low /
Replace PC
Kit
●
Load Paper
●✷✷✷
Paper Jam
●✷✷✷
Error
●✷✷✷
RIP
interface
driver
error
General engine
software error
Faulty engine code flash or
programming failed
Contact next level of support or
1-800-539-6275
Secondary code

Diagnostic information 2-33
4505
Transfer roll
CAUTION: When you see this symbol, there is a
danger from hazardous voltage in the area of the
product where you are working. Unplug the product
before you begin, or use caution if the product must
receive power in order to perform the task.
Code 917 indicates a problem in the transfer roll circuit. Check the
continuity from the cable connection on the HVPS (high voltage
power supply) to the right side of the transfer roll.
Tertiary code
Lights
917
Continue
✷
Ready
●✷
Toner Low /
Replace PC
Kit
●
Load Paper
●✷
Paper Jam
●✷
Error
✷✷
Secondary code

2-34 Service Manual
4505
Fuser, fan, or toner sensor error
Codes 920 through 929 indicate a problem in the fuser (see “Fuser
service check” on page 2-53 for more information), a stalled fan motor
or a faulty toner sensor or toner cartridge.
Tertiary codes
Lights
920
921
922
923
924
925
926
927
928
929
Continue
✷
Ready
● ✷✷✷✷✷✷✷✷✷✷
Toner Low /
Replace PC
Kit
●✷✷
Load Paper
●✷✷✷✷
Paper Jam
✷✷✷✷✷
Error
● ✷✷✷✷✷
Toner sensor or
toner cartridge
Fuser below
temperature when
printing
Incorrect fuser lamp
installed
Open circuit in
thermistor path
Fuser too hot during
printing or idle
Fuser failed to reach standby temperature
Fuser below standby
temperature at idle
Secondary
code
Fan stalled
Diagnostic information 2-35
4505
Printhead, transport motor or RIP/engine communication error
Codes 930 through 935 indicate a problem with the printhead.
Check cables to the printhead. Replace the printhead as necessary.
Codes 936 and 937 indicate a problem in the drive system.

2-36 Service Manual
4505
Code 939 indicates a communication failure between the RIP and
engine processors.
Tertiary codes
Code
930
931
932
933
934
935
936
937
939
Continue
✷
Ready
● ✷✷✷✷✷✷✷✷✷
Toner Low /
Replace PC
Kit
●✷
Load Paper
●✷✷✷✷
Paper Jam
✷✷✷✷✷
Error
✷✷✷✷✷✷
Secondary
code
Mirror motor not at opening speed.
(Verify +24 V dc on pin #5 of J11.)
Mirror motor lost lock
Printhead - lost hsync
Printhead - no first hsync.
(Verify interlock switch is
plugged in at J13.)
Transp or t
motor lost
lock
Mirror motor locked
Wrong printhead
RIP/engine
communica-
tion error
Transp or t
motor initial
lock failure
Mirror motor not at opening speed.
(Verify +24 V dc on pin #5 of J11.)

Diagnostic information 2-37
4505
RIP to engine communication failure (controller card).
This indicates fuser control in the LVPS has failed or the wrong LVPS
has been installed.
Tertiary
codes
Code
940
Continue
✷
Ready
●✷
Toner Low /
Replace PC
Kit
●
Load Paper
✷
Paper Jam
●
Error
●
Secondary
code
2-38 Service Manual
4505
NVRAM failure
Error codes 950–954 indicate a problem in the NVRAM (nonvolatile
random access memory). Replace the operator panel assembly.
Codes 955–959 indicate a failed controller card assembly. Replace
the controller card.

Diagnostic information 2-39
4505
Tertiary codes
Code
950
951
952
954
955
956
957
958
959
Continue
✷
Ready
● ✷✷✷✷✷✷✷✷✷
Toner Low /
Replace PC
Kit
●✷✷
Load Paper
✷✷✷✷✷
Paper Jam
●✷✷✷
Error
✷ ✷ ✷✷✷
Secondary code
NVRAM data does not
match secure NVRAM
RIP firmware cannot
communicate with secure
NVRAM
NVRAM chip failure
NVRAM CRC failure
SRAM
failure
NAND
failure
ASIC failure
Processor failure
Code ROM or NAND
failed cyclic redundancy
check (CRC)
2-40 Service Manual
4505
Note: NVRAM is on the operator panel printed circuit board (PCB)
while secure NVRAM is on the controller PCB. Check margin
alignments after replacing the operator panel assembly. See
“Printhead service check” on page 2-61 for more information. If
margin errors are unacceptable, corrections can only be made
through software. Contact the next level of support or Lexmark at
1-800-539-6275.

Diagnostic information 2-41
4505
RAM memory error
This error indicates RAM failure. Remove DIMM(s) and POR the
printer. If the error persists, replace the card. If the error subsides,
check each DIMM independently. Replace faulty DIMM.
Tertiary codes
Code
960
961
962
963
Continue
✷
Ready
●✷✷✷✷
Toner Low /
Replace PC
Kit
●
Load Paper
✷
Paper Jam
✷✷✷
Error
●✷ ✷
Secondary
code
RAM in slot 1 is bad
RAM soldered on the board is bad

2-42 Service Manual
4505
Network error
Indicates an error in the network circuitry. Replace the controller
card assembly.
Tertiary codes
Code
970
971
972
973
974
975
976
978
979
Continue
✷
Ready
● ✷✷✷✷✷✷✷✷✷
Toner Low /
Replace PC
Kit
●✷✷
Load Paper
✷✷✷✷
Paper Jam
✷✷✷✷
Error
✷✷✷✷ ✷
Unrecognizable
network port
Unrecoverable software error in network port
Bad checksum while programming port
Flash parts failed while programming port
Secondary code

Diagnostic information 2-43
4505
Paper port communication failure
Indicates an error communicating with Tray 2, if installed. Remove
Tray 2 and recheck. If the error does not recur, replace Tray 2. If the
error recurs, replace the controller card assembly
Tertiary codes
Code
980
981
982
983
984
Continue
✷
Ready
●✷✷✷✷✷
Toner Low /
Replace PC
Kit
✷
Load Paper
●✷
Paper Jam
●✷✷
Error
●✷ ✷
Secondary code
Engine experiencing
unreliable communications
to specified device
Engine protocol violation detected by
the specified device Communications error detected by
specified device
Invalid command
received by specified
device
Invalid command
parameter
received by
specified device

2-44 Service Manual
4505
Symptom tables
POST symptom table
Symptom Action
The main motor, cooling fan,
and fuser do not come on. See “Cover interlock switch service
check” on page 2-51.
POST completes except one or
more lights do not come on. See “Operator panel service check”
on page 2-59.
None of the lights come on. See “Operator panel service check”
on page 2-59.
Main motor does not come on. See “Main motor service check” on
page 2-58.
Fan does not come on. See “Cooling fan service check” on
page 2-48.
Fuser lamp does not come on. See “Cold fuser service check” on
page 2-47.
Fuser lamp never turns off. See “Hot fuser service check” on
page 2-56.
The paper feed picks and tries
to feed paper. See “Paper feed service checks” on
page 2-61.

Diagnostic information 2-45
4505
Printer symptom table
Symptom Action
Dead machine (no power) See “Dead machine service check”
on page 2-52.
Fan noisy or not working See “Cooling fan service check” on
page 2-48.
Fuser parts melted See “Hot fuser service check” on
page 2-56.
Fuser lamp doesn’t light See “Cold fuser service check” on
page 2-47.
Toner not fused to the paper See“Cold fuser service check” on
page 2-47.
Paper jams See “Paper feed service checks” on
page 2-61.
Main motor noisy or not moving See “Main motor service check” on
page 2-58.
Paper skew See “Paper feed service checks” on
page 2-61.
Printer not communicating with
host See “Parallel port service check” on
page 2-65.
Front access cover will not
close See “Cover interlock switch service
check” on page 2-51.
Operator panel button not
responding See “Operator panel service check”
on page 2-59 or “Controller card
service check” on page 2-49.
Operator panel lights are off or
very dim See “Controller card service check”
on page 2-49.
Blank page See “Blank page” on page 2-67.
Black page See “Black page” on page 2-68.
Heavy background See “Heavy background” on
page 2-69.
Light print See “Light print” on page 2-71.

2-46 Service Manual
4505
White or black lines or bands See “White or black lines or bands”
on page 2-72.
Toner on back of page See “Toner on back of page” on
page 2-72.
Paper never picks See “Paper never picks” on
page 2-63.
Paper feeds continuously See “Paper picks during POST and/or
continuously” on page 2-62.
Paper wrinkled or bent See “Paper “trees,” wrinkles, stacks
poorly or curls” on page 2-65.
Symptom Action

Diagnostic information 2-47
4505
Service checks
Service checks which involve measuring voltages on
the LVPS/HVPS (low voltage power supply/high voltage
power supply board) should be performed with the printer
positioned on its back side.
Note: When you make voltage readings, always use frame ground
unless another ground is specified. See “Wiring diagram” on
page 5-4 for more information.
Cold fuser service check
Make sure the correct voltage lamp is installed. The voltage rating is
stamped on one of the lamp contacts.
FRU Action
Fuser AC cables
LVPS/HVPS
Fuser
If the fuser lamp comes on and a
fuser failure light error code displays,
be sure the thermistor is contacting
the hot roll and the thermistor cable
is firmly seated in connector J15 on
the controller card.
Check for excessive toner buildup on
the surface of the thermistor. Clean
as necessary.
With the printer unplugged,
disconnect the thermistor cable from
J15 on the controller card.
Measure the resistance of the
thermistor. The resistance measures
from approximately 1K ohms
immediately after printing or POR to
approximately 240K ohms when
thermistor reaches room
temperature. (It may take 30 minutes
to cool.)
Replace the fuser assembly as
necessary.

2-48 Service Manual
4505
Cooling fan service check
FRU Action
Cooling fan Make sure the fan cable plug is
properly seated at J19 (controller
card).
Turn the printer off and disconnect
the cooling fan cable from the
controller card.
Turn the printer on. Within a few
seconds the controller card
assembly should apply between
+24 V dc to pin 2. See “Controller
board” on page 5-3 for more
information.
•If voltage is present and the fan is
not turning, replace the cooling
fan. If the fan still doesn’t function,
replace the controller card.
Note: The fan speed is controlled by
a module on the PCB.
Between +8 V and +24 V dc
are constantly supplied at
pin 2 (J19). Pin 1 is ground
while pin 3 receives feedback
from the fan motor.
•If voltage is not present, see
“Controller board” on page 5-3
for more information.

Diagnostic information 2-49
4505
Controller card service check
FRU Action
Controller card assembly Verify +24 V dc input from the
LVPS/HVPS.
•Turn the printer off.
•Disconnect the LVPS/HVPS
cable from the controller card at
J7. See “Controller board” on
page 5-3 for more information.
•Turn the printer on.
Verify +24 V dc from the cable
connector of J9, pin 8.
Verify that pin 7 on both the cable
and the card connectors is ground.
•If voltage is correct, check the
continuity in the cable. If the
cable is good, see the
“Controller board” on
page 5-3 for more information.
•If grounds are not correct on the
cable, first check it for continuity
and then the LVPS/HVPS.
•If the grounds are not correct on
the controller card, replace the
controller card. (Check with one
probe on the connector pin and
the other on the card’s ground
plane found at each screw
head.)

2-50 Service Manual
4505
Controller card service check (continued)
FRU Action
Controller card assembly Note: With all cables connected, the
printer should complete
POST within approximately
12–15 seconds in the
following sequence:
1. All operator panel lights on solid
momentarily.
2. Lights then flash on and off
sequentially.
After lights quit flashing, the
light turns on solid.
3. The cooling fan comes on.
4. The fuser lamp comes on.
5. The drive motor runs.
6. The printhead motor runs.
7. The printer cycles down into
standby mode/ready.
If immediately following power–on
the operator panel lights are active
but the printer does not go through
steps 1 and 2 above, replace the
controller card assembly.
Note: Settings for U.S. versus
non–U.S. and the printer
configuration ID can be
changed. See
“Configuration and
diagnostic groups” on
page 3-1 for more
information.
If some lights are on or flashing,
see “Common light sequences”
on page 2-3 to determine action
required.

Diagnostic information 2-51
4505
Cover interlock switch service check
Note: Make sure a print cartridge assembly is installed and the
cover closes all the way, engaging the cover open switch
lever.
FRU Action
Cover interlock switch Disconnect the cover interlock cable
from the controller card at J13.
Verify continuity between cable
pin 1 and pin 2 with the door closed
but not open.
Verify continuity between cable
pin 1 and pin 3 with the door open
but not closed.
•If either fail continuity, replace the
cover interlock switch.
•If both pass continuity, turn the
printer on and verify +5 V dc on
pin 2 at J6 on the controller card.
•Verify pins 1 and 3 are ground.
•If voltage or ground is not present,
see “Controller card service
check” on page 2-49 for more
information.
Verify discontinuity between pins 2
and 3 whether the door is open or
closed.
Replace the cover interlock switch if
faulty.

2-52 Service Manual
4505
Dead machine service check
CAUTION: Check the AC line voltage. The voltage should be
within the following limits:
•100 V ac (volts alternating current) – 127 V ac for the 110 V
printer
•200 V ac – 240 V ac for the 220 V printer
FRU Action
LVPS/HVPS
Unplug the printer and check the
fuses on the LVPS/HVPS board for
continuity.
•If open, replace the LVPS/HVPS
board.
–If fuse opens again, see “LVPS/
HVPS service check” on
page 2-57 for more information
•If not open, unplug the cables at
CN102 and CN201 (fuser and
controller card respectively).
Plug LVPS/HVPS board to source
and turn switch on.
Verify 24 V dc on pin 8 at connector
CN201.
Verify line voltage (110 or 220 V ac)
across pins 1 and 2 of CN102.
•If either voltage is not correct,
replace the LVPS/HVPS board.
•If both voltages are correct, check
the controller card. See
“Controller board” on page 5-3
for more information.
Verify grounds.

Diagnostic information 2-53
4505
Fuser service check
When toner is partially fused to the paper, it is usually caused by low
fuser temperature.
Warning: Avoid handling the lamp as much as possible as it is
easily broken. Be careful not to touch the glass housing
with bare hands because skin acids can weaken the
glass. The lamp is not a service part.
The line voltage to the printer must be within the following limits:
•100 V ac–127 V ac for the 110 V model printer
•200 V ac–240 V ac for the 220 V model printer
Turn the printer off and wait a few minutes for the fuser lamp to cool.
Turn the printer on and observe the lamp turning on during POST.
You can see the light from the lamp by opening the left
side cover and observing the upper opening through
which the fuser power cables pass.

2-54 Service Manual
4505
Fuser service check (continued)
FRU Action
Lamp cable
LVPS/HVPS
Fuser
Unplug the printer and disconnect
the fuser lamp cable plug from the
LVPS/HVPS board connector
CN102.
Check for continuity across the fuser
lamp by checking across the
connector pins.
•If there is continuity, go to Step 1:
Continuity.
•If there is no continuity, go to
Step 2: No continuity.
Step 1: Continuity
Turn the printer on with only the
fuser power disconnected.
Measure the voltage at connector
CN2 on the LVPS/HVPS. It should
match the line voltage.
•If line voltage is not present, see
“LVPS/HVPS service check” on
page 2-57 for more information.
Make sure the fuser thermistor is
correctly connected to the controller
board. If the problem persists,
disconnect the thermistor cable at
J15 and check for less than +5 V dc
on pin 1. Pin 2 should be ground.
•If line voltage is incorrect on pin 1,
see “Controller card service
check” on page 2-49 for more
information.
Step 2: No continuity
Check the lamp cable for continuity.
•If correct, replace the fuser.
•If incorrect, replace the lamp
cable.

Diagnostic information 2-55
4505
Fuser service check (continued)
FRU Action
Fuser (continued)
Disconnect the thermistor cable from
J15 on the controller card.
Measure the resistance across the
ends of the thermistor cable. See
“Connector locations” on
page 5-1 for more information.
Replace the fuser assembly if the
resistance is lower than 1K ohm or
shorted.
Note: Resistance measures
approximately 240K ohms
when cool and 1.4K ohms
hot.

2-56 Service Manual
4505
Hot fuser service check
Note: Ensure correct lamp is installed.
FRU Action
Fuser AC cables
LVPS/HVPS
Fuser
Measure the resistance of the
thermistor. The resistance measures
from approximately 1K ohms
immediately after printing or POR to
approximately 240K ohms when
thermistor reaches room
temperature. (It may take 30 minutes
to cool.)
Replace the fuser assembly as
necessary.

Diagnostic information 2-57
4505
LVPS/HVPS service check
FRU Action
LVPS/HVPS
LVPS portion of board
Fuses that open typically indicate a
faulty LVPS/HVPS.
Use the voltage meter to verify the
appropriate voltage at the printer
end of the power cable.
Remove the LVPS/HVPS assembly
from the printer.
Check continuity on the fuses.
If either fuse has opened, replace
the card.
Ensure the switch is off and plug the
power cord into the card.
Turn the switch on.
CAUTION: The card has several
points where AC voltage is
exposed.
Carefully verify the AC voltage
between pins 1 and 2 matches the
power cable (wall) voltage.
•If voltage is incorrect, replace the
card assembly.
Verify +24 V dc from pin 8 at CN201.
•If voltage is incorrect, replace the
card assembly.
HVPS portion of board
Problems with the HVPS are
exhibited in the print quality. See
“Print quality service checks” on
page 2-66 for more information.

2-58 Service Manual
4505
Main motor service check
FRU Action
Main motor cable
LVPS/HVPS
Controller card
Warning: Do not replace
the operator panel and
controller card at the same
time. Each card contains
the printer settings. When
either of these cards is
new, it obtains the settings
from the other card.
Settings are lost when both
are new and replaced at
the same time.
Verify +24 V dc at J9, pin 8 and
+5 V dc at pin 1 (controller card).
Verify ground at pins 2 and 7 for both
the card and cable.
•If these voltages are correct,
check the main motor cable for
continuity.
–Remove rear cover to access
connector on motor.
–If continuity exists on each wire,
call next level of service.
–If continuity does not exist on
one or more of the wires,
replace the motor cable.
•If these voltages are not correct,
see the “LVPS/HVPS service
check” on page 2-57 or replace
the controller card.
Note: The main motor is not a
service part.

Diagnostic information 2-59
4505
Operator panel service check
Inspect the operator panel cable for damage. Make sure the cable is
plugged in securely.
Run POST and check each light for proper operation.
Operator panel service check
FRU Action
Operator panel Buttons
Open controller card cage and
locate the operator panel connector
at J16.
Check for continuity between pins 1
and 2 of the cable as you press the
Continue button.
Similarly, check the continuity
between pins 1 and 6 of the cable
while pressing Cancel .
•If continuity is not present, replace
the operator panel.
Note: Check margin alignments
after replacing the operator
panel assembly. If margin
errors are unacceptable,
corrections can only be made
through software. Contact the
next level of support or
Lexmark at
1–800–539–6275.

2-60 Service Manual
4505
Operator panel service check (continued)
FRU Action
Operator panel
Controller card
Warning: Do not replace the
operator panel and
controller card at the
same time. Each card
contains the printer
settings. When either
of these cards is new,
it obtains the settings
from the other card.
Settings are lost when
both are new and
replaced at the same
time.
Lights
If none of the lights come on, make
sure the cable is properly connected
to the controller card and the
controller card has input voltage to it.
Verify +24 V dc on cable pin 8 at J7.
•Check for +5 V dc at J16, pin 5
See “Controller card service
check” on page 2-49 or page 5-3
for more information.
•If these voltages are not correct,
replace the controller card.
•If these voltages are correct,
replace the operator panel.
If more than one light does not turn
on or an individual light stays on
solid during POST, replace the
operator panel.
If all lights are dim and operate
erratically during POST or all lights
come on and stay on solid during
POST, replace the FRUs in the
following order one at a time:
•Controller card
•Operator panel

Diagnostic information 2-61
4505
Printhead service check
Paper feed service checks
Paper jam error indication during POST
FRU Action
Printhead
Unplug the printer.
Disconnect the printhead cables
from J11 and J12 on the controller
card.
Turn the printer on.
On the controller card, verify
+24 V dc on pin 5 at J11 and
+5 V dc on pin 7 at J12.
Verify grounds on pin 4 at J11 and
on pins 2, 6, and 8 at J12.
•If voltages or grounds are
incorrect, check the controller
card. See “Controller card
service check” on page 2-49 for
more information.
•If voltages are correct, replace the
printhead (comes with cables).
FRU Action
Exit sensor If the exit sensor flag is not resting
within the paper exit sensor during
POST, the printer displays a paper
jam message. Make sure the flag is
operating freely and is correctly
installed.
Input sensor
Input sensor #1 (under print
cartridge assembly) and
Input sensor #2 (manual)
Make sure the input paper feed
sensors are working properly. A
stuck or incorrectly installed sensor
causes this error.

2-62 Service Manual
4505
Paper picks during POST and/or continuously
Paper picks but stops half way through the printer
FRU Action
ACM (auto comp mechanism or
paper feed) clutch
Manual feed clutch
Check the ACM clutch for wear. The
solenoid interacts with the clutch to
control the motion of the pick tires.
If the ratchet teeth of the ACM clutch
assembly are worn or broken, the
solenoid may not stop the ACM from
rotating. Replace the ACM clutch
assembly if necessary.
Check the manual feed clutch for the
same damage.
FRU Action
Input sensor #1 (under print
cartridge assembly) and
Input sensor #2 (manual)
Make sure the input sensors are
working properly.
Check for a broken or stuck flag on
the input sensors.
Make sure the cables are seated on
the controller card at J20 (Tray 1
input) and J18 (manual input).
Check for less than +5 V dc on pin 3
at J20 (Tray 1 input) and pin 1 at J18
(manual input sensor).
•If correct, replace the input paper
feed sensor.
•If these voltages are not correct,
replace the controller card.

Diagnostic information 2-63
4505
Paper never picks
FRU Action
Paper feed (pick tires) Open the left cover and verify the
solenoid and clutch are functioning
when an attempt is made to feed the
paper.
Make sure the rubber tires are
installed and clean.
Replace if necessary.

2-64 Service Manual
4505
Paper occasionally picks or picks multiple sheets at once
FRU Action
Tray 1
Tray 2 (option) Check tray for paper catch points.
If the sheet being fed stops
momentarily, the ACM applies
additional vertical force causing
additional sheets to feed.
Do not mix paper types.
Paper pick tires Check the tires in the ACM assembly
for signs of wear or damage.
Replace the tires as necessary.
ACM clutch complete bill of
material (CBM)
Manual feed clutch CBM
Open left cover and observe the
solenoid and clutch actions at the
ACM and manual feed shafts as a
print job is attempted.
Replace the faulty part.
Controller card Disconnect the solenoid cable at J5
on the controller card.
Measure the resistance across cable
pins 1 and 2 and then pins 3 and 4.
•The resistance should be
180–210 ohms.
•If it is not, call the next level of
service.
•If the resistance is 180–210 ohms,
check the controller card. See
“Controller card service check”
on page 2-49 for more
information.
Replace controller card as
necessary.

Diagnostic information 2-65
4505
Paper “trees,” wrinkles, stacks poorly or curls
Parallel port service check
1. Perform a print test to make sure the printer prints correctly.
Verify is on, press to print menu settings.
2. Be sure the printer cable is designed for bidirectional printing.
3. Be sure the user Program is set up correctly.
4. If the internal print test page prints correctly, the user
Program/printer driver is set up correctly and the correct
bidirectional parallel cable is installed, but the printer still fails to
print on command from the host computer, replace the
controller card.
FRU Action
Fuser This problem is most likely due to a
worn backup roll. It causes the
printer to run hotter than required for
the media being printed. Excessive
heat can cause paper treeing
problems, poor stacking, or curl.

2-66 Service Manual
4505
Print quality service checks
Note: Ensure cover is closed tightly. A gap in the opening may allow
light to expose the photoconductor resulting in a ‘dirty’ print.
Using print quality test pages
To help isolate print quality problems, like streaking, print test pages
using the print quality test pages setting:
1. Turn the printer on with pressed and the front door open.
2. When light stays on, close cover.
3. Wait (approximately 7 seconds) until the printer drive activates.
4. Enter the configuration menu. See “Configuration and
diagnostic groups” on page 3-1 for more information.
5. Slowly press and release three times until the and
lights come on.
6. Press and hold until all the lights flash to initiate print quality
test pages.
Three pages print to help you evaluate print quality. The first
page has various fonts, the second page is gray, and the third
page is black. Once the paper exits into the output bin, the
printer returns to the home state (four top lights on).
7. Use the test pages to isolate problems such as light or toner
streaks. See “Symptom tables” on page 2-44 for solutions to
these problems.
8. To exit print quality test pages, turn the printer off.

Diagnostic information 2-67
4505
Blank page
FRU Action
Toner cartridge (not a FRU) Remove the toner cartridge and
gently shake it to evenly distribute
the toner.
Check for cartridge damage.
Printhead
LVPS/HVPS
Controller card
Toner electrodes (cable
assembly)
Blank pages can be caused by a
defective printhead assembly,
LVPS/HVPS, or controller card.
•Printhead errors typically result in
printer service errors.
•Blank pages typically are caused
by the PC roll not being properly
charged. Try a different PC kit.
Unplug the printer and check
continuity between the LVPS/HVPS
connection pads marked OPC and
the corresponding pin inside the
printer.
•If there is not continuity, call the
next level of service.
Try a different toner cartridge and
PC kit.
•If those fail, replace the
LVPS/HVPS.

2-68 Service Manual
4505
Black page
Note: Incorrect laser exposure or incorrect charging of the
photoconductor causes an all black page. Always verify the
same results from a different print cartridge assembly and
developer before proceeding.
FRU Action
Toner electrodes (not a FRU) Check the electrodes below the print
cartridge assembly for
contamination or damage. Correct
as necessary.
Check continuity between the cable
connections on the contact tips
below the print cartridge assembly.
•If continuity fails, call the next level
of service.
LVPS/HVPS board
Controller card
With the printer off, disconnect the
LVPS/HVPS cable from J7 on the
controller card.
Turn the printer on and verify
+24 V dc on pin 8 of the cable.
Verify ground on pin 7.
•If the voltage is incorrect, replace
LVPS/HVPS board.
•If voltage is correct and the toner
electrodes are good, replace the
controller card.

Diagnostic information 2-69
4505
Heavy background
Poor development or poorly charged toner particles cause excessive
background. This is more noticeable as the toner cartridge nears
end–of–life.
FRU Action
Toner cartridge (not a FRU)
PC Kit (not a FRU) Make sure the toner cartridge and
PC Kit are correctly installed and the
high voltage contacts are clean.
If the toner cartridge and PC Kit are
installed correctly, try a new PC Kit
first and then toner cartridge.
LVPS/HVPS
Controller card
Check the contacts for correct
installation and contamination where
contact is made between the print
cartridge assembly, and LVPS/HVPS
board. Clean as necessary.
If this does not correct the problem,
replace the following FRUs one at a
time in the order shown:
•LVPS/HVPS board
•Controller card

2-70 Service Manual
4505
Partial blank image/white spots (no periodic pattern)
Variation in image density horizontally across page
FRU Action
Toner cartridge (not a FRU) Remove the toner cartridge
assembly and gently shake the
assembly to evenly distribute the
toner.
If toner cartridge is low, try a new
one.
Paper (not a FRU) Make sure recommended paper is
being used.
FRU Action
PC Kit (not a FRU) The charge roll may have an
unbalanced pressure against the
Photoconductor (PC) drum.
Try a new PC Kit.
Transfer roll Check the springs in the left and
right transfer roll bearings. The
bearing assemblies should support
the transfer roll, applying even
pressure to the PC drum.
Replace the transfer roll assembly if
the springs or bearing show signs of
damage or fatigue.
Inspect the transfer roll for signs of
wear, damage or contamination.
Replace as necessary.

Diagnostic information 2-71
4505
Poor fusing of image
Light print
FRU Action
Fuser The fuser may not be operating at
the proper temperature to fuse the
toner to the paper. See“Hot fuser
service check” on page 2-56 for
more information.
Paper (not a FRU) Make sure recommended paper is
being used.
FRU Action
Toner cartridge (not a FRU) Make sure the toner cartridge and
PC Kit are installed correctly and
that the toner cartridge is not low on
toner.
If the problem continues, install a
new toner cartridge.
Recheck condition before replacing
PC Kit, if necessary.
Transfer roll
LVPS/HVPS board
Check the transfer roll for signs of
toner buildup and contamination.
Inspect the HVPS contact (transfer
roll) for contamination.
Verify the high voltage cable is
plugged into the LVPS/HVPS.
If all components appear free of
contamination, replace the following
FRUs one at a time in the order
shown:
•Transfer roll
•LVPS/HVPS board

2-72 Service Manual
4505
White or black lines or bands
Toner on back of page
FRU Action
Print cartridge assembly (not a
FRU)
Developer drive coupling
assembly
Banding appears as light or dark
horizontal lines on a uniformly gray
page or on a page with a large area
of graphics. Banding is primarily due
to a variation in the speed of the
paper as it feeds through the printer
especially in the developer and
transfer process.
Inspect the toner cartridge and
paper feed components, especially
the drive coupler and drive gears for
debris, binds or damage.
FRU Action
PC Kit (not a FRU) Inspect the overall paper path for
signs of spilled toner.
Gently clean the contaminated areas
with a soft cloth or compressed air.
Fuser The fuser hot roll can cause toner
deposits on the back of the paper if
toner is building up on the hot roll.
This buildup may transfer to the
backup roll, later transferring to the
back of the paper.
Inspect the hot roll and backup roller
for signs of contamination.
Replace the fuser as necessary.
Transfer roll A transfer roll contaminated with
toner can cause toner to transfer to
the back of printed pages.
Inspect the transfer roll for
contamination and replace as
necessary.

Diagnostic information 2-73
4505
Solving print quality problems
Problem Action
Light or blurred characters. Light print
The toner cartridge may be getting
low on toner:
•Remove the toner cartridge and
print cartridge assembly.
•Shake it from side to side to
redistribute the toner.
•Reinstall it and recheck for
condition.
•Make sure you are using
recommended print media (see
media types and sizes in the
User’s Reference.)
•Use MarkVision™ to define the
custom type setting for media
type, media texture, or media
weight.
•The toner cartridge or PC Kit may
be defective. Replace the PC Kit
first and recheck.
Blurred characters
Blurred images, including
characters, are usually caused by a
defective printhead. See “Light
print” on page 2-71.
Toner smudges appear on the
front or back of the page. •Make sure the paper is straight
and unwrinkled.
•Replace the PC Kit and recheck
before replacing the toner
cartridge. See “Toner on back of
page” on page 2-72 for more
information.

2-74 Service Manual
4505
Vertical or horizontal streaks
appear on the page. Replace the toner cartridge for
vertical black streaks.
Wipe the glass lens clean with a soft
tissue for vertical “white” streaks.
For horizontal streaks, see “White
or black lines or bands” on
page 2-72 for more information.
Toner smears or rubs off the
page. •Replace the fuser. The toner is not
being fused. See “Cold fuser
service check” on page 2-47 for
more information.
•Try a different kind of paper. Paper
designed for copiers gives the
best quality fusing.
•If you are printing on special
media, such as card stock or
labels, be sure you select the
correct paper type in the printer
driver.
•Change the media texture setting.
If the setting is not in your driver,
you can download the correct
Lexmark setup utility from the
Lexmark Web site at
www.lexmark.com.
The print is getting light but the
light is not on. •The light does not come
on if the standard 1,500 page
toner cartridge is installed.
•Remove the toner cartridge and
gently shake it from side to side to
redistribute the toner.
•Replace the toner cartridge.
The light is on. •Remove the toner cartridge and
gently shake it from side to side to
redistribute the toner.
•Replace the toner cartridge.
Problem Action

Diagnostic information 2-75
4505
Solid black areas on
transparencies or white streaks
on paper.
•Choose a different fill pattern in
your software Program.
•Try a different type of paper. Paper
designed for copiers gives the
best quality.
•Remove the toner cartridge and
gently shake it from side to side to
redistribute the toner.
•Replace the toner cartridge.
Faint images or repetitive spots
appear on the page. •Select a different media type or
form type setting from your printer
driver.
•Try a different type of paper. Paper
designed for copiers gives the
best quality.
•Replace the toner cartridge.
Pages are blank. •The print cartridge may be out of
toner or defective. Replace the
cartridge.
•You may have a software error. Try
turning the printer off and back on.
•Check the printhead. See “Paper
feed service checks” on
page 2-61 for more information.
Problem Action

2-76 Service Manual
4505
The printer is on, but nothing
prints. •Make sure the toner cartridge
assembly is installed properly.
•Make sure the parallel or USB
cable is not damaged and is firmly
plugged into the connector on the
back of the printer.
•Press and release to print a
menu settings page just to save
space.
–If you cannot print a menu
settings page, call the next level
of support.
–If you can print a menu settings
page, the problem is one of the
following:
•Computer
•Software program
•Cable
•(USB only) failed ASIC or
controller card. Replace card.
Note: Test by unplugging USB
and replugging it with the
printer on. If the computer
indicates “unknown device,”
replace the card.
Toner Low light is on and printing
stops. If you are using a 3000 or 6000 toner
cartridge and the Toner Low alarm is
set to on, the printer stops printing
until you replace the toner cartridge.
–Download the correct Lexmark
setup utility from the Lexmark
Web site at www.lexmark.com to
change the Toner Low alarm.
The Error light is on. Make sure the printer cover is
closed.
The Toner Low light is blinking,
and the Error light is on. •Make sure the toner cartridge is
installed correctly.
•Install a new toner cartridge.
Problem Action

Diagnostic information 2-77
4505
The media skews or buckles. •Don’t overfill Tray 1 or the optional
Tray 2 (see media capacities in
the media types and sizes table in
the User’s Reference).
•Make sure the paper guides are
flush against the edges of the
media.
The paper sticks together/printer
feeds multiple sheets of paper. •Remove the paper from Tray 1 or
the optional Tray 2 and fan it.
•Don’t overfill Tray 1 or the optional
Tray 2 (see media capacities in
the media types and sizes chart in
the User’s Reference).
The paper fails to feed from
Tray 1. •Remove the paper from Tray 1
and fan the paper.
•Make sure Tray 1 is selected from
the printer driver.
•Do not overfill the tray.
•Check the condition of the rubber
on the paper feed rolls.
•Verify clutch for ACM is not
slipping.
The paper fails to feed from the
optional Tray 2. •Make sure the optional Tray 2 is
selected from the printer driver.
•Make sure the tray is pushed all
the way in.
•Remove the paper from the
optional Tray 2 and fan it.
•Check the rubber on the paper
feed tires.
•Check the paper path in the tray
for burrs or debris that may hinder
paper movement.
•Make sure the paper does not
exceed the stack height indicator.
The Load Paper light is on even
though there is paper loaded in
the optional Tray 2.
•Make sure the tray is pushed all
the way in.
•Press .
Problem Action

2-78 Service Manual
4505
The printer does not print after a
paper jam has been cleared. •Clear all jams.
•Press and release or open
and close the printer cover to
restart the printer.
•Make sure the print cartridge
assembly is installed properly.
Unexpected characters print or
characters are missing. •Ensure correct printer driver is
being used.
•Press and hold until all lights
come on to reset printer to user
default settings.
•Select hex trace mode to
determine what the problem is.
•Restore factory defaults.
•Make sure the parallel cable or
USB cable is firmly plugged in at
the back of the printer.
Jobs are not printing and the Error
light is on solid. •Make sure the print cartridge
assembly is installed properly.
•Make sure the printer top cover is
closed.
While in PostScript 3 emulation,
the printer is flushing data
(Ready/Data and Error lights are
blinking).
•Ensure the correct PostScript
driver is being used.
•The printer doesn’t have enough
memory to print the job. Install
more memory.
While using manual duplex, the
printer gets a paper jam. A paper jam interrupts the duplex
process. As a result, the information
on the page that jammed is lost.
•Press and release to cancel
the print job.
•Press and hold
(approximately 3 seconds) to
reset the printer.
•Resend the print job.
Problem Action

Diagnostic information 2-79
4505
Transfer roll service check
FRU Action
Transfer roll
Check transfer roll area for debris
and clean as necessary.
Verify continuity between the spring
below the left side bearing and the
transfer roll shaft.
Verify continuity in the spring and the
cable connection on the
LVPS/HVPS.
–Inspect the roll for signs of wear
or damage and replace if
necessary.
2-80 Service Manual
4505

Diagnostic aids 3-1
4505
3. Diagnostic aids
Configuration and diagnostic groups
Configuration
The configuration group contains a set of menus, settings, and
operations which are not used by an end user. Generally, the options
made available in this menu group are used to configure a printer.
Access to the configuration group is gained by way of a POR key
sequence. See “Accessing the configuration and diagnostic
groups” on page 3-2 for more information.
Diagnostic
The diagnostic group contains menu settings and operations that
are useful in the manufacturing of the printer. It also features other
aids in diagnosing problems. See “Accessing the configuration
and diagnostic groups” on page 3-2 for more information.

3-2 Service Manual
4505
Accessing the configuration and diagnostic groups
Power–On operations
To access printer operations:
1. Turn off the printer.
2. Open the front cover.
3. Press and hold the buttons in the following table for the
operation needed.
4. Turn on the printer. Hold the selected button until the lights cycle
on the operator panel.
5. Close the cover and wait for the printer to activate the drive.
6. Print menus by pressing and holding until the lights flash
(see menu samples on page 3-4 and page 3-5).
Operation Power–on action
Enter
configuration
menu mode
1. Power on with cover open and
pressed.
2. Close cover once the light is
displayed.
Enter
diagnostics
mode
1. Power on with top cover open and
pressed.
2. Close cover once the light is
displayed.
Reset NVRAM
and enter
normal mode
1. Power on with top cover open and
both and buttons pressed.
2. Close cover once the light is
displayed.

Diagnostic aids 3-3
4505
Moving around the menu
“Printer settings configuration” on page 3-4 and “Printer
diagnostics” on page 3-5, are similar to the instructions printed by
following steps 1-6 on page 3-2. These menu items are designated
by the non–indented items listed along the left edge of the page.
(Bottom as printed from printer.) These items are also un–shaded.
•Press and release to move sequentially from one menu
item to another.
•Press and hold to jump to home state (top four lights on).
•Press and release to move through the menu settings
(indicated by and lights).
This action rotates only through the possible settings of the
selected menu item.

3-4 Service Manual
4505
Printer settings configuration

Diagnostic aids 3-5
4505
Printer diagnostics

3-6 Service Manual
4505
Configuration menu selections
Utilities
Use the Utilities menu to troubleshoot printer problems.
Setting Use setting to: Values
Reset Factory
Defaults Return the printer settings to factory default values.
Sometimes resetting the printer to the original settings
solves formatting problems.
All menu items are reset to the factory default values
except:
•Display Language.
•All settings in the Parallel menu, Network menu,
LocalTalk menu, and USB menu.
•All downloaded resources (fonts, macros, and symbol
sets) in printer memory (RAM) are deleted.
Resources in flash memory are unaffected.
Hex Trace Help isolate printing
problems when
unexpected characters
print or characters are
missing.
Hex Trace helps
determine if there is a
problem with the language
interpreter or the cable by
providing information
about what the printer is
receiving.
To exit Hex Trace, turn off
the printer.
Off*
On
Print Quality Test
Pages Help isolate print quality problems, such as streaking.
Three pages print to help evaluate print quality:
•A text page with printer information, cartridge
information, current margin settings, and a graphic.
•Two pages with graphics.

Diagnostic aids 3-7
4505
Setup
Use the Setup menu to configure how the printer formats the
end of a line depending on the computer system being used.
Reset
Photoconductor
Counter
Return the photoconductor counter to zero.
The replace photoconductor message should be
cleared only when the photoconductor kit has been
replaced.
* Factory default
Menu item Use setting to: Values
Demo mode Put printer into demo
mode where internal
sheets prints with each
press of .
To deactivate, turn the
printer off and re-enter
configuration group. Set to
deactivate.
Deactivate*
Activate
Auto CR after LF Specify whether the
printer automatically
performs a carriage return
after a line feed control
command.
Off*
On
Auto LF after CR Specify whether the
printer automatically
performs a line feed after
a carriage return control
command.
Off*
On
* Factory default
Setting Use setting to: Values

3-8 Service Manual
4505
Parallel
Use the Parallel menu to change printer settings on jobs sent
through a parallel port.
Menu item Use setting to: Values
NPA Mode Send print jobs to the
printer and query printer
status information
simultaneously.
Off
On
Auto*
Protocol Receive information at a
much higher transmission
rate if your printer is set to
Fastbytes (if your
computer supports
Fastbytes) or receive
information at a normal
transmission rate if your
printer is set to Standard.
Standard
Fastbytes*
Parallel Mode 2 Determine whether the
parallel port data is
sampled on the leading
(On) or trailing (Off) edge
of strobe.
Off
On*
MAC Binary PS Configure the printer to
process Macintosh binary
PostScript print jobs.
Off—The printer filters
PostScript print jobs using
Standard protocol.
On—The printer
processes raw binary
PostScript print jobs from
computers using the
Macintosh operating
system. This setting often
causes Windows print
jobs to fail.
Auto*—The printer
processes print jobs from
computers using either
Windows or Macintosh
operating systems.
* Factory default

Diagnostic aids 3-9
4505
USB
Use the USB menu to change printer settings on jobs sent
through a USB port.
Menu item Use setting to: Values
NPA Mode Send print jobs to the
printer and query printer
status information
simultaneously.
Off
On
Auto*
MAC Binary PS Configure the printer to
process Macintosh binary
PostScript print jobs.
Off—The printer filters
PostScript print jobs using
Standard protocol.
On—The printer
processes raw binary
PostScript print jobs from
computers using the
Macintosh operating
system. This setting often
causes Windows print
jobs to fail.
Auto*—The printer
processes print jobs from
computers using either
Windows or Macintosh
operating systems.
* Factory default

3-10 Service Manual
4505
Network
Use the network menu to change printer settings on jobs sent
through a network port (either standard network or network opt <x>).
Menu item Use setting to: Values
NPA Mode Send print jobs to the
printer and query printer
status information
simultaneously.
Off
Auto*
MAC Binary PS Configure the printer to
process Macintosh binary
PostScript print jobs.
Off—The printer filters
PostScript print jobs using
Standard protocol.
On—The printer
processes raw binary
PostScript print jobs from
computers using the
Macintosh operating
system. This setting often
causes Windows print
jobs to fail.
Auto*—The printer
processes print jobs from
computers using either
Windows or Macintosh
operating systems.

Diagnostic aids 3-11
4505
Network (continued)
Menu item Use setting to: Values
Set card speed Automatically detect the
connection speed of your
network.
This setting can be
disabled to set the speed
manually.
Auto* – the printer detects
current network speed.
10Mbps, half duplex–
forces the printer to try to
connect to the network
only at 10Mbps, half
duplex.
10Mbps, full duplex–
forces the printer to try to
connect to the network
only at 10Mbps, full
duplex.
100Mbps, half duplex–
forces the printer to try to
connect to the network
only at 100Mbps, half
duplex.
100Mbps, full duplex–
forces the printer to try to
connect to the network
only at 100Mbps, full
duplex.
* Factory default

3-12 Service Manual
4505
Diagnostics menu selections
Development
Menu item Use setting to: Value
Edge–to–edge Allow a shift of all four
margins (top, bottom, right
and left) to the physical edge
of the page (printable area of
supported paper).
Setting ignored by PPDS
interpreter.
Off*
On
Print quality test
pages Help isolate print quality
problems, such as streaking.
Three pages print:
•A text page with printer
information, cartridge
information, current
margin settings, and a
graphic.
•Two pages with graphics.
Note: Cartridge lockout
function disabled.
Continuous print -
simplex Tray 1 Continuously print pages
containing cross lines, printer
information and margin
settings.
Press to stop.
Print history Print history of errors.
Defaults Change sizes and
designations to metric. U.S.*
Non-U.S.
Configuration ID Allow the printer’s ID to
match the label’s ID after the
controller card is replaced.
000101*
000189
* Factory default

Diagnostic aids 3-13
4505
Parallel
Network
Menu item Use setting to: Value
Par S strobe
adjustment Adjust for an unusually long
parallel cable. (Parallel
mode 2 only is supported
and can be turned off in the
configuration group.)
-1
0*
1
2
3
* Factory default
Menu item Use setting to: Value
Mark history Append a tag to the history
report to indicate the most
recent crashes.
Mark
Do not mark*
History mode Post the 976 error code to
the user each time it occurs.
The default (modified)
internally resets the posting
but records it in the crash
history. A substantial number
of consecutive errors result
in posting 976.
Modified*
Every time
Dump NVRAM Print a hex dump if the
network NVRAM partition.
Reinit NVRAM Rest the network NVRAM to
factory defaults.
Optra Form mode Treat all print jobs as
Optra Forms™ jobs. On
Off*
Meditech mode Prevent the network card
from accepting more than
one 9100 mode connections
at a time.
Ye s
No*
* Factory default
3-14 Service Manual
4505

Repair information 4-1
4505
4. Repair information
Removals
Note:
1. Remove the toner cartridge and paper tray before removing
other printer parts. The toner cartridge should be protected from
light while out of the printer.
2. We recommend all external cables be disconnected from the
printer to prevent damage during service.
3. Unless otherwise stated, re-install the parts in reverse order of
removal.
4. When re-installing a part held with several screws, start all
screws before final tightening.
4-2 Service Manual
4505
Covers
Access cover removal
(See “Covers” on page 7-2.)
1. Open the front access cover.
2. Place thumbs on the inside of the respective hinge.
3. Force the left hinge out of its socket and relax it above the
socket.
4. Force the right hinge out of its socket and lift it above the socket.
CAUTION: Do not pull the fuser link out of the printer any farther
than when the door is fully open. Otherwise, the link extension may
cause the cartridge coupler to become dislodged.
5. Carefully lift the cover free from the printer frame.
6. Use your left hand to hold the fuser link at the cover joint while
rotating the right side of the cover slightly away from the printer
to disengage the link.
7. Remove the access cover.
Reinstallation note: If the access cover is being replaced, remove
the logo plate and use it on the new cover.
Extender cover removal
(See “Frame” on page 7-6.)
1. Locate the latches on the left and right sides of the extender
cover.
2. Push the latches and pull the cover away from the rear of the
printer.
Repair information 4-3
4505
Left side cover removal
(See “Covers” on page 7-2.)
1. Open the access cover to expose a screw and the two left side
cover latches.
2. Remove the screw, which fastens the side cover.
3. Open the rear door (output tray).
4. Release the latches with the right hand while applying opening
force with the left hand.
5. Swing the cover open.
6. To remove the cover, position the printer with the left–rear
corner hanging over the edge of the table.
7. Lift the top rear of the cover over the pivot point and drop the
cover away from the printer.
Rear cover removal
(See “Covers” on page 7-2.)
1. Remove the right side cover. See “Right side cover removal”
on page 4-3 for more information.
2. Remove the left side cover. See “Left side cover removal” on
page 4-3 for more information.
3. Open the rear door (rear exit tray) and remove the two screws
holding the cover.
4. Lift the rear cover, unhook it from the frame at the bottom and
remove.
Right side cover removal
(See “Covers” on page 7-2.)
Remove the right side cover the same way as the left side cover
except use the opposite hand. See “Left side cover removal” on
page 4-3 for more information.
Note: There is no screw holding the right cover.
4-4 Service Manual
4505
Top cover removal
(See “Covers” on page 7-2.)
1. Open the access cover.
2. Open the left cover.
3. Open the right cover.
4. Remove two screws at the top rear corners of the top cover.
5. Remove two screws at the front of the top cover just behind the
access door.
6. Release the top cover latch which is about 40 mm behind the
access cover latch on the left side.
7. Lift and remove the top cover.
Access cover logo removal
(See “Covers” on page 7-2.)
1. Open the access cover.
2. Remove the screw holding the logo cover in place.
3. Remove the logo cover from the access cover.
Controller card removal
(See “Electronics” on page 7-4.)
Warning:
–Always touch a ground before touching the card.
–Handle the card by the edges.
1. Open the right cover.
2. Remove the metal controller card cover (two screws).
3. Disconnect all the cables to the controller card.
4. Remove three screws at the back of the printer which secure
the USB and parallel ports to the metal frame.
5. Remove five screws holding the card to the metal side frame.
6. Carefully lift the card and remove.
Repair information 4-5
4505
Cover open sensor removal
(See “Electronics” on page 7-4.)
1. Remove the right side cover. See “Right side cover removal”
on page 4-3 for more information.
2. Remove the controller card cover (two screws).
3. Disconnect the cover open switch at J13 on the controller card
and extract the cable.
4. Use a small Phillips screwdriver to remove the screw holding
the sensor.
5. Slide the sensor from the positioning post.
Developer drive coupling assembly removal
(See “Frame” on page 7-6.)
1. Remove the left side cover.
2. Carefully place the printer on its right side. Protect the cover
from marring.
3. Remove four screws in the gear train metal cover.
4. Remove the developer gear, the conical spring, and the
coupling assembly.
Door latch assembly removal
(See “Frame” on page 7-6.)
1. Open access cover.
2. Open left side cover.
3. Locate the opening on the backside of the button. The opening
is partially covered by the front left edge of the printhead metal
frame.
4. Use a small shank Phillips screwdriver to extract the screw.
5. Contain the spring as the latch is removed.
4-6 Service Manual
4505
Exit sensor removal (on the fuser)
(See “Electronics” on page 7-4.)
1. Remove the paper exit guide assembly. See “Paper exit guide
assembly removal” on page 4-12 for more information.
2. Remove the controller card cover. See “Controller card
removal” on page 4-4 for more information.
3. Unplug the exit sensor at J10 on the controller card.
4. Locate the long shaft just above the exit sensor and two flats on
the shaft just inside the bearing support at the gear.
5. Push the shaft to the right using your right thumb against the
inside gear surface and the left index finger against the opposite
end of the shaft.
6. Align the two flats with the opening of the bearing support and
lift the right end of the shaft through the support.
7. Swing the shaft away from the printer to expose the sensor flag.
8. Remove the two lower, outermost screws holding the fuser.
9. Slide the fuser out just enough to access the screw holding the
sensor.
10. Remove the sensor and its attached cable.
11. Observe the orientation of the flag and spring before replacing
units.
Fan removal
(See “Electronics” on page 7-4.)
1. Open the right side cover.
2. Unplug the fan from the controller card at J19.
3. Remove two screws holding the fan to the metal side frame.
Repair information 4-7
4505
Feed rollers (auto comp tires) removal
(See “Frame” on page 7-6.)
1. Remove the paper tray.
2. Remove the toner cartridge.
3. Tilt the printer onto its back.
4. Remove old tires.
5. Ensure the new tires are captured between the rims of the
plastic hub.
Fuser idle gear links removal
(See “Frame” on page 7-6.)
1. Remove the access cover. See “Access cover removal” on
page 4-2 for more information.
2. Remove the left side cover.
3. Place printer on its right side. Protect the cover from being
marred.
4. Remove the metal plate covering the gear train.
5. Grasp the rear link with your index fingers and thumb on each
side of the shaft and unsnap the link from the shaft.
6. Disconnect front link from coupler and remove links.

4-8 Service Manual
4505
Fuser power cable removal
(See “Electronics” on page 7-4.)
1.Remove the LVPS/HVPS card. See “LVPS /
HVPS card assembly removal” on page 4-10 for
more information.
Note: The cable can be reached without fully removing the
card.
2. Remove the rear cover. See “Rear cover removal” on
page 4-3 for more information.
3. Remove the exit guide assembly. See “Paper exit guide
assembly removal” on page 4-12 for more information.
4. Remove the two screws (one on each side) from the lower
corners of the fuser.
5. Slide the fuser out far enough to expose and disconnect the AC
cable connections.
6. Extract the fuser power cable.
Fuser removal
(See “Electronics” on page 7-4.)
1. Remove the paper exit guide assembly. See
“Paper exit guide assembly removal” on
page 4-12 for more information.
2. Remove the two screws (one on each side) from the lower
corners of the fuser.
3. Remove the controller card cover (two screws).
4. Disconnect the thermistor at J15 and exit sensor at J10 on the
controller card.
5. Slide the fuser out far enough to expose and disconnect the AC
cable connections.
6. Carefully extract the fuser with thermistor and sensor cables.
Repair information 4-9
4505
Input roller clutch and lever removal
(ACM clutch CBM)
(See “Frame” on page 7-6.)
1. Remove the left side cover.
2. Place the printer on its right side. Protect the cover from being
marred.
3. Remove four screws in the gear train metal cover.
4. Remove the clip from the shaft of the input roller clutch
assembly.
5. Remove the screw and lever (pawl).
6. Remove the clutch assembly. If the pieces come apart, they can
be easily reassembled if necessary.
Input sensor #1 removal
(See “Electronics” on page 7-4.)
1. Remove the right side cover. See “Right side cover removal”
on page 4-3 for more information.
2. Remove the controller card cover.
3. Disconnect the sensor cable at J20 on the controller card (front,
near top of card).
4. Carefully place the printer on its top.
5. Using a small shank screwdriver, remove the screw behind the
paper pick pivot which holds the paper sensor in place.
6. Remove the sensor and the attached cable, flag, and spring.
7. Re-install the sensor so that the flag is spring loaded against the
pages as it advances in its path.
8. Verify the cable is captured and out of the paper path.

4-10 Service Manual
4505
Input sensor #2 (manual) removal
(See “Electronics” on page 7-4.)
1. Open the right side cover. See “Right side cover removal” on
page 4-3 for more information.
2. Remove the controller card cover.
3. Disconnect the sensor cable at J18 on the controller card (front,
top of card).
4. Carefully place the printer on its top, with the front facing you.
5. Remove the screw beside the left pick tire.
6. Remove the sensor and its attached cable.
7. Re-install the new sensor in the same orientation as the old.
The flag should be spring loaded against the leading edge of an
advancing sheet.
8. Verify the cable is captured and away from the paper path.
LVPS / HVPS card assembly removal
(See “Electronics” on page 7-4.)
1.Remove the cover extender (if installed) and the
rear cover. See “Rear cover removal” on page 4-3
for more information.
2. Place the printer onto its top, with the back and bottom in view.
3. Remove two screws, one left of the power switch and the other
at the opposite side of the panel.
4. Remove the foot–brackets (2x) above the power supply cover.
5. Remove four screws in the bottom of the metal cover.
6. Move the cover so the connecting cables can be unplugged.
7. Remove the LVPS/HVPS card and cover.
Repair information 4-11
4505
LVPS / HVPS to controller card cable removal
(See “Electronics” on page 7-4.)
1. Remove the LVPS/HVPS card. See “LVPS / HVPS card
assembly removal” on page 4-10 for more information.
2. Remove the controller card cover. See “Controller card
removal” on page 4-4 for more information.
3. Unplug the cable at J7 and extract the cable.
Note: The card may not have to be completely removed to
disconnect the cable.
Manual feed clutch assembly removal
(See “Frame” on page 7-6.)
1. Remove the left side cover.
2. Place the printer on its right side. Protect the cover from being
marred.
3. Remove the four screws in the gear train metal cover.
4. Remove the clip from the shaft of the pick up clutch assembly.
5. Remove the screw and lever (pawl).
6. Remove the clutch assembly. If the pieces come apart, they can
be easily reassembled if necessary.
Operator panel removal
(See “Electronics” on page 7-4.)
1. Open access door.
2. Open the right cover.
3. Remove the controller card cover.
4. Unplug the operator panel from the controller card at J16.
5. Remove two screws at the front top and bottom of the operator
panel.
6. Remove the operator panel.
4-12 Service Manual
4505
Paper exit guide assembly removal
(see “Frame” on page 7-6.)
1. Remove the rear cover. See “Rear cover removal” on
page 4-3 for more information.
2. Remove the three screws holding the exit guide.
3. Remove the paper exit guide assembly.
Reinstallation note: It may be necessary to rotate the gears to
mesh with the fuser and drive gear.
Printhead removal
(See “Electronics” on page 7-4.)
1. Remove the top cover. See “Top cover removal” on page 4-4
for more information.
2. Remove the controller card cover (two screws).
Note: Notice the alignment of the printhead at each screw.
3. Unplug the printhead cables at locations J11 and J12.
4. Remove three screws securing the printhead to the cross brace
and lift the printhead out.
Toner level sensor cable removal
(See “Electronics” on page 7-4.)
1. Open the right side cover. See “Right side cover removal” on
page 4-3 for more information.
2. Remove the controller card cover (two screws).
3. Unplug the sensor at J17 and extract the cable.
Repair information 4-13
4505
Toner level sensor removal
(See “Electronics” on page 7-4.)
1. Open the right side cover. See “Right side cover removal” on
page 4-3 for more information.
2. Unplug the cable from the sensor.
3. Unsnap the toner level sensor from the frame and remove
through the inside of the printer.
Transfer roll removal
(See “Frame” on page 7-6.)
1. Open the access cover.
2. At the right side of the transfer roll, squeeze the holder arms
with the left hand while lifting with the right. Stop when the
holder is unlatched.
3. At the left side of the transfer roll, squeeze the holder arms with
the right hand while lifting with the left hand. Stop when the left
holder is unlatched.
4. With a hand at each end, lift the transfer roll out. The springs
should remain in place.
Re-installation note: Verify the springs are inserted into the
bearings when re–installing.

4-14 Service Manual
4505
Transport motor cable removal
(See “Electronics” on page 7-4.)
1.Remove the right cover. See “Right side cover
removal” on page 4-3 for more information.
2.Remove the controller card cover. See
“Controller card removal” on page 4-4 for more
information.
3.Unplug the transport motor cable (XPRT) at J9.
4.Remove the LVPS/HVPS card assembly. See “LVPS / HVPS
card assembly removal” on page 4-10 for more information.
5.Extract the cable through the side frame leaving it free at the
opening above the LVPS/HVPS.
6.Remove the fuser. See “Fuser removal” on page 4-8 for more
information.
7.Extract the cable through the hole and from its retainers.
8.Unplug the cable at the motor and install the new cable.

Connector locations 5-1
4505
5. Connector locations
Front and rear views

5-2 Service Manual
4505
Power supply board
CN202
CN201
CN203
CN102
1

Connector locations 5-3
4505
Controller board

5-4 Service Manual
4505
Wiring diagram
Note: See the fold out wiring diagram in the back of this book for a
larger view.
E23X, E33X
Wiring Diagram
CN102
Main Fan
2
431
2
431
2
765431
2
765431
23 1
23 1
2
5431
2
5431
J11
2
10 9 8765431
2
10 9 8765431
J12
+24V Dc
Gnd
MMLock-C
MMStart-C
MMRef-C
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
1
2
3
4
1
2
3
4
5
6
1
2
3
4
5
6
J18 J16
Manual
Input
Sensor
J13
IOIOOO I
I
O
J1 J2
J4
+24V Dc
Gnd
MPF_C
Gnd
I
O
OP
Panel
2
3
1
Cover
Open
Switch
Toner
Level
Sensor
2
1
3
4
6
8
10
5
7
9
2
1
3
4
6
8
10
5
7
9
Printhead
I
OOOOO OOOO
I
Gnd
+5V Dc
+5V_LD
+5V_LD
Gnd
Gnd
LDEN_C
HSYNC_C
VREF
Video_C
Gnd
VDO_ADJ_C
LPOW_C (H/Hr only)
LSU Mirror
Motor
2
1
3
4
5
2
1
3
4
5
Gnd
TxEnable_C
Dev_C
HR_PSU
Tx_C
Servo_Out_C
28
6
5
4
3
17
28
6
5
4
3
17
2
1
2
1
23
1
23
1
CN201
CN202
CN203
2
1
Thermistor
Fuser
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Main
Motor Drive
+5V Dc
XPRT_FD_C
TCO
Lamp
Charge_C
Gnd
+24v Dc
(not used) XEROX_C
Option Card
Developer
TAR
Dr. Blade
Charge Roller
Photoconductor
Photoconductor
Kit
Gnd
+24v Dc
XPRT_Speed_C
XPRT_EN_C
XPRT_Lock_C
Tray2_CB
Gnd
TR2SOL+
Tray2_Det
TR2SOL-
Tray2_Pwm
MPFSOL-
FDSOL-
MPFSOL+ (<24V)
FDSOL+ (<24V)
LVPS
HVPS
1
2
3
4
5
6Tray 2
(Optional)
MPF
Solenoid
Paper
Feed
Solenoid
120 VAc
120 VAc
USB
Network
Plug
(if equipped)
Button2_C
SCL
+5V Dc
LED_Data_C
LED_CLK_C
Button1_C
Gnd
Toner
Cartridge
Smart
Chip
2
1
Spade
Connector
Transfer Roll
21
21
J15
I
Gnd
+24V Dc
21
J2
I
2
31
2
31
J10
O
I
Exit
Sensor
<5V Dc
Paper_Out_C
21
21
J19
I
O
+8 to +24V Dc
Gnd
1
2
3
1
2
3
J17
O
I
Gnd
3
2
1
End_C
Toner_
J9
J7
J5
J3
1
2
3
1
2
3
J20
O
I
<5V Dc
Paper_In_C
Gnd
1
2
1
2
J14
3C_Data_C
Gnd
Input
Sensor
3
3
Feedback

Preventive maintenance 6-1
4505
6. Preventive maintenance
The Lexmark E23x, E33x do not require preventive maintenance.
6-2 Service Manual
4505

Parts catalog 7-1
4505
7. Parts catalog
How to use this parts catalog
SIMILAR ASSEMBLIES: If two assemblies contain a majority of
identical parts, they are shown on the same list. Common parts are
shown by one index number. Parts peculiar to one or the other of the
assemblies are listed separately and identified by description.
•NS: (Not Shown) in the Asm-Index column indicates that the
part is procurable but is not pictured in the illustration.

7-2 Service Manual
4505
Assembly 1: Covers

Parts catalog 7-3
4505
Assembly 1: Covers
Index P/N Units Description
1—1 56P2079 1 Cover assembly, top
2 56P2087 1 Cover assembly, rear
2 56P2098 1 Cover assembly, rear (white)
3 56P1821 1 Cover, right
3 56P2093 1 Cover, right (white)
4 56P2089 1 Drawer, optional
5 56P2090 1 Tray 2, optional
5 56P2084 1 Tray 2, optional (white)
6 56P2088 1 Tray, main
6 56P1834 1 Tray, main (white)
7 56P1832 1 Cover, logo plate E332n
7 56P2081 1 Cover, logo plate E330
7 56P2085 1 Cover, logo plate E232
7 56P1833 1 Cover, logo plate E230
7 56P2086 1 Cover, logo plate (plain)
7 56P2628 1 Cover, logo plate (white) E230
7 56P2096 1 Cover, logo plate (white) E330
7 56P2097 1 Cover, logo plate (white) E232
7 56P2629 1 Cover, logo plate (white) E332
7 56P2703 1 Cover, logo plate E234
8 56P1816 1 Cover assembly, front access (no logo)
8 56P2091 1 Cover assembly, front access (white)
9 56P2647 1 Springs, front door and ACM
10 56P2080 1 Cover, left
10 56P2095 1 Cover, left (white)

7-4 Service Manual
4505
Assembly 2: Electronics

Parts catalog 7-5
4505
Assembly 2: Electronics
Index P/N Units Description
2–1 56P1812 1 Print assembly, laser/mirror E232
1 56P1829 1 Print assembly, laser/mirror
E330/E332n/E234/E234n
1 56P1830 1 Print assembly, laser/mirror E230
2 56P1810 1 Fuser assembly, 110 V
2 56P1811 1 Fuser assembly, 220 V
2 56P2070 1 Fuser assembly, 100 V
3 56P1826 1 Sensor, exit
4 56P2077 1 Cable assemblies, miscellaneous
•Toner sensor
•LVPS/HVPS to controller
•Main drive motor (E23x/E330)
•Main drive motor (E234n/E332n)
•Fuser power
5 56P1824 1 Sensor, input #1
6 56P1827 1 Sensor, cover open
7 56P2072 1 Fan, cooling
8 56P2076 1 Sensor, toner level
9 56P1813 1 Card, controller E232
9 56P1814 1 Card, controller E330
9 56P1815 1 Card, controller E332n
9 56P1831 1 Card, controller E230
9 56P2704 1 Card, controller, E234
9 56P2705 1 Card, controller, E234n
10 56P1817 1 Operator panel assembly, operator panel
with PCB assembly
10 56P2092 1 Operator panel assembly, operator panel
with PCB assembly (white)
11 56P1818 1 Card assembly, LVPS/HVPS 110 V
11 56P1819 1 Card assembly, LVPS/HVPS 220 V
12 56P1825 1 Sensor, input #2 (manual)

7-6 Service Manual
4505
Assembly 3: Frame

Parts catalog 7-7
4505
Assembly 3: Frame
Index P/N Units Description
3-1 56P2078 1 Guide assembly, paper exit
2 56P1823 1 Transfer, roll, bearings, gear
3 56P1822 1 Cover, legal extender
3 56P2094 1 Cover, legal extender (white)
4 56P2646 N/A Screws, miscellaneous (actual size)
TP2NC-3.0+6P-Ni (quantity 2)
M3.0*0.5+6P-Ni,2 Washer (quantity 2)
MT3.0*0.5+6PF-Ni (quantity 5)
TP2NC-3.0+6PF-Ni (quantity 4)
5 56P1820 2 Paper feed, rubber tires
6 56P2647 1 Springs, front door and ACM
7 56P2075 1 Clutch CBM, ACM
8 56P2083 1 Link CBM, door-fuser idle gear
9 56P2074 1 Clutch CBM, manual feed
10 56P2648 2 Rings, plastic snap
11 56P2073 1 Coupling assembly, developer drive
12 56P2082 1 Latch CBM, access cover
7-8 Service Manual
4505
Assembly 4: Miscellaneous
This page intentionally left blank.

Parts catalog 7-9
4505
Assembly 4: Miscellaneous
Index P/N Units Description
NS 56P1232 1 Adapter, US 802.11B wireless print
NS 56P1233 1 Adapter, INTL 802.11B wireless print
NS 56P1431 1 Adapter, MarkNet X2011E external
NS 56P1432 1 Adapter, MarkNet X2012E external
NS 56P1433 1 Adapter, MarkNet X2031E external
NS 56P1434 1 Adapter, MarkNet X2030 Token Ring external
NS 56P1435 1 Adapter, external serial
NS 1038693 1 Cable, serial, 50 foot (PSO)
NS 12A2405 1 Cable, packaged USB
NS 1329605 1 Cable, packaged parallel
NS 1427498 1 Cable, 20 foot parallel cable, with pack
NS 56P1417 1 Card assembly, 16MB flash
NS 56P1418 1 Card assembly, 32MB flash
NS 56P1427 1 Card assembly, OptraForms 32MB flash
NS 56P1428 1 Card assembly, OptraForms 16MB flash
NS 56P1429 1 Card assembly, simplified Chinese font
NS 56P1430 1 Card assembly, traditional Chinese font
NS 56P2231 1 Card assembly, Korean font
NS 56P0696 1 DIMM, 16MB PC100 SDR DIMM
NS 56P0697 1 DIMM, 32MB PC100 SDR DIMM
NS 56P0698 1 DIMM, 64MB PC100 SDR DIMM
NS 56P0699 1 DIMM, 128MB PC100 SDR DIMM
NS 7372839 1 Package assembly, field relocation
NS 1339520 1 Power cord, Spain, 8 foot (straight)
NS 11D0330 1 Power cord, Argentina
NS 1339528 1 Power cord, United Kingdom, 6 foot
NS 1339529 1 Power cord, Austria HV, 6 foot (straight)
NS 1339530 1 Power cord, Israel, 6 foot (straight)
NS 1339531 1 Power cord, Switzerland, 6 foot
NS 1339532 1 Power cord, South Africa, 6 foot
NS 1339533 1 Power cord, Italy, 6 foot (straight)
NS 1339534 1 Power cord, Danish, 6 foot (straight)
NS 1339548 1 Power cord, Brazil, 6 foot (straight)
NS 43H5545 1 Power cord, PRC, 1.77M (straight)
NS 56P9926 1 Software, Optra Forms
NS 56P9927 1 Software, Optra Forms director
7-10 Service Manual
4505

I-1
4505
Index
A
abbreviations 1-8
auto CR after LF (setup menu) 3-7
auto LF after CR (setup menu) 3-7
B
buttons 1-3
C
configuration menu 3-1
moving around the menu 3-3
printer diagnostics 3-5
printer setting configuration 3-4
configuration menu selections
network 3-10
parallel 3-8
setup 3-7
USB 3-9
utilities 3-6
configuration menus
parallel
MAC binary PS 3-8, 3-10
mode 2 3-8
NPA mode 3-8, 3-10, 3-11
protocol 3-8
setup auto CR after LF 3-7
auto LF after CR 3-7
USB MAC binary PS 3-9
NPA mode 3-9
utilities
Hex Trace 3-6
print quality test pages 3-6
reset factory defaults 3-6
D
diagnostic aids
accessing configuration group 3-2
accessing diagnostic group 3-2
configuration menu 3-1
diagnostic menu 3-1
power-on operations 3-2
diagnostic menu 3-1
moving around the menu 3-3
printer diagnostics 3-5
printer setting configuration 3-4
diagnostic menu selections
development 3-12
network 3-13
parallel 3-13
E
error light 2-16, 2-18
G
general information 1-1
H
Hex Trace (utilities menu) 3-6
L
laser notices vii
lights 1-3, 2-3
load paper light
Tray 1 or 550-sheet tray 2-12
locations 5-1
controller board 5-3
front and rear views 5-1
power supply board 5-2
wiring diagram 5-4
I-2 Service Manual
4505
M
MAC binary PS
parallel menu 3-8, 3-10
USB menu 3-9
mode 2 (parallel menu) 3-8
models 1-1
differences 1-2
E230 1-1
E232 1-1
E234 1-1
E234n 1-1
E330 1-1
E332n 1-1
N
NPA mode
parallel menu 3-8, 3-10, 3-11
USB menu 3-9
O
operator panel
buttons 1-3
common light sequences 2-3
light sequences
canceling job 2-17
change invalid toner cartridge
2-16
Hex Trace ready 2-10
Invalid network code 2-16
Load Tray 1 or 550-sheet tray
2-12
not ready 2-11
offline 2-11
printing a directory 2-9
printing a font list 2-9
printing menu settings pag-
es 2-9
printing print quality test pag-
es 2-9
programming engine code
2-17
programming flash 2-9
programming system code
2-17
resetting printer 2-17
restoring factory defaults
2-17
lights 1-3, 2-3
overview 2-2
primary codes
busy 2-9
cancel job / reset printer 2-17
change invalid toner cartridge
2-16
close door / insert cartridge
2-12
flushing/resolution reduced
2-11
hex trace ready 2-10
invalid engine code 2-16
invalid network code 2-16
load manual feeder 2-13
load media 2-12
not ready 2-11
print side two of duplex job
2-13
printer error 2-18
programming engine code
2-17
programming system code
2-17
ready/power saver 2-8
replace photoconductor kit
2-14
service error 2-18
toner cartridge error 2-15
toner cartridge not installed
2-15
toner low 2-14
waiting 2-10
I-3
4505
secondary codes
2-19
complex page 2-21
defective flash 2-23
error communicating with
host 2-25
flash full 2-26
font error 2-23
insufficient collation area
2-22
insufficient defrag memory
2-24
insufficient printer memory
2-22
invalid engine code 2-27
invalid network code 2-28
memory full 2-25
network interface errors
2-24
paper jams as it exits tray
2-20
paper jams as printed job ex-
its 2-21
short paper 2-26
unformatted flash 2-27
secondary errors 2-6
service check 2-59
understanding lights 2-3
overview
operator panel 1-3
P
paper jams
clearing 1-4
tips on preventing 1-5
part number index i-5
parts catalog
covers 7-2
electronics 7-4
frame 7-6
how to use 7-1
POST 2-1
POST symptoms 2-44
power-on self test (POST) 2-1
preventive maintenance 6-1
print media
manual feed 1-7
Tray 1 1-7
Tray 2 1-7
types 1-7
print quality problems
solving 2-73
print quality test pages
using 2-66
print quality test pages (utilities menu)
3-6
printer symptom table 2-45
protocol (parallel menu) 3-8
R
removals 4-1
controller card 4-4
cover open sensor 4-5
covers 4-2
access 4-2
access cover logo 4-4
extender 4-2
left side 4-3
rear 4-3
right side 4-3
top 4-4
developer drive coupling asm. 4-5
door latch asm. 4-5
exit sensor 4-6
fan 4-6
feed rollers 4-7
fuser 4-8
fuser idle gear links 4-7
fuser power cable 4-8
input roller clutch and lever 4-9
input sensor #1 4-9
input sensor #2 4-10
LVPS/HVPS card asm. 4-10
LVPS/HVPS to controller card cable
4-11
manual feed clutch asm. 4-11
operator panel 4-11
I-4 Service Manual
4505
paper exit guide asm. 4-12
printhead 4-12
toner level sensor 4-13
toner level sensor cable 4-12
reset factory defaults (utilities menu)
3-6
S
safety information xv
secondary error codes
complex page 2-21
defective flash 2-23
error communicating with the host
computer 2-25
flash full 2-26
font error 2-23
insufficient collation area 2-22
insufficient defrag memory 2-24
insufficient printer memory 2-22
invalid engine code 2-27
invalid network code 2-28
memory full 2-25
network interface errors 2-24
PPDS font error 2-23
short paper 2-26
unformatted flash 2-27
service
information 2-29
secondary error codes 2-30
secondary light patterns 2-29
tertiary error codes 2-31
controller software 2-32
drive motor or transfer roll
2-33
engine communication 2-35
fuser, fan or toner sensor
2-34
network error 2-42
paper port communication
failure 2-43
printhead, transport motor or
RIP 2-35
RAM memory error 2-41
service checks 2-47
controller card 2-49
cooling fan 2-48
cover interlock 2-51
dead machine 2-52
fuser 2-53
cold 2-47
hot 2-56
LVPS/HVPS 2-57
main motor 2-58
operator panel 2-59
operator panel button 2-59
paper feed 2-61
paper jam during POST 2-61
paper never picks 2-63
paper picks but stops 2-62
paper picks during POST
2-62
paper picks sheets 2-64
paper trees, curls 2-65
parallel port 2-65
print quality 2-66
black page 2-68
blank page 2-67
heavy background 2-69
image density 2-70
light print 2-71
partial blank image 2-70
poor fusing of image 2-71
toner on back of page 2-72
white or black lines 2-72
transfer roll 2-79
service error lights 2-18
symptom tables 2-44
POST 2-44
printer 2-45
T
tools 1-6

I-5
4505
Part number index
P/N Description Page
1038693 Cable, serial, 50 foot (PSO) . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
11D0330 Power cord, Argentina . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
12A2405 Cable, packaged USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
1329605 Cable, packaged parallel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
1339520 Power cord, Spain, 8 foot (straight) . . . . . . . . . . . . . . . . . . . . . 7-9
1339528 Power cord, United Kingdom, 6 foot . . . . . . . . . . . . . . . . . . . . 7-9
1339529 Power cord, Austria HV, 6 foot (straight) . . . . . . . . . . . . . . . . . 7-9
1339530 Power cord, Israel, 6 foot (straight) . . . . . . . . . . . . . . . . . . . . . 7-9
1339531 Power cord, Switzerland, 6 foot . . . . . . . . . . . . . . . . . . . . . . . . 7-9
1339532 Power cord, South Africa, 6 foot . . . . . . . . . . . . . . . . . . . . . . . 7-9
1339533 Power cord, Italy, 6 foot (straight) . . . . . . . . . . . . . . . . . . . . . . 7-9
1339534 Power cord, Danish, 6 foot (straight) . . . . . . . . . . . . . . . . . . . . 7-9
1339548 Power cord, Brazil, 6 foot (straight) . . . . . . . . . . . . . . . . . . . . . 7-9
1427498 Cable, 20 foot parallel cable, with pack . . . . . . . . . . . . . . . . . . 7-9
43H5545 Power cord, PRC, 1.77M (straight) . . . . . . . . . . . . . . . . . . . . . 7-9
56P0696 DIMM, 16MB PC100 SDR DIMM . . . . . . . . . . . . . . . . . . . . . . 7-9
56P0697 DIMM, 32MB PC100 SDR DIMM . . . . . . . . . . . . . . . . . . . . . . 7-9
56P0698 DIMM, 64MB PC100 SDR DIMM . . . . . . . . . . . . . . . . . . . . . . 7-9
56P0699 DIMM, 128MB PC100 SDR DIMM . . . . . . . . . . . . . . . . . . . . . 7-9
56P1232 Adapter, US 802.11B wireless print . . . . . . . . . . . . . . . . . . . . 7-9
56P1233 Adapter, INTL 802.11B wireless print . . . . . . . . . . . . . . . . . . . 7-9
56P1417 Card assembly, 16MB flash . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
56P1418 Card assembly, 32MB flash . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
56P1427 Card assembly, OptraForms 32MB flash . . . . . . . . . . . . . . . . 7-9
56P1428 Card assembly, OptraForms 16MB flash . . . . . . . . . . . . . . . . 7-9
56P1429 Card assembly, simplified Chinese font . . . . . . . . . . . . . . . . . 7-9
56P1430 Card assembly, traditional Chinese font . . . . . . . . . . . . . . . . . 7-9
56P1431 Adapter, MarkNet X2011E external . . . . . . . . . . . . . . . . . . . . 7-9
56P1432 Adapter, MarkNet X2012E external . . . . . . . . . . . . . . . . . . . . 7-9
56P1433 Adapter, MarkNet X2031E external . . . . . . . . . . . . . . . . . . . . 7-9
56P1434 Adapter, MarkNet X2030 Token Ring external . . . . . . . . . . . . 7-9
56P1435 Adapter, external serial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
I-6 Service Manual
4505
56P1810 Fuser assembly, 110 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-5
56P1811 Fuser assembly, 220 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-5
56P1812 Print assembly, laser/mirror E232 . . . . . . . . . . . . . . . . . . . . . .7-5
56P1813 Card, controller E232 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-5
56P1814 Card, controller E330 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-5
56P1815 Card, controller E332n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-5
56P1816 Cover assembly, front access (no logo) . . . . . . . . . . . . . . . . . .7-3
56P1817 Operator panel assembly, operator panel with PCB assembly 7-5
56P1818 Card assembly, LVPS/HVPS 110 V . . . . . . . . . . . . . . . . . . . . .7-5
56P1819 Card assembly, LVPS/HVPS 220 V . . . . . . . . . . . . . . . . . . . . .7-5
56P1820 Paper feed, rubber tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-7
56P1821 Cover, right . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
56P1822 Cover, legal extender . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-7
56P1823 Transfer, roll, bearings, gear . . . . . . . . . . . . . . . . . . . . . . . . . .7-7
56P1824 Sensor, input #1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-5
56P1825 Sensor, input #2 (manual) . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-5
56P1826 Sensor, exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-5
56P1827 Sensor, cover open . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-5
56P1829 Print assembly, laser/mirror E330 / E332n . . . . . . . . . . . . . . . .7-5
56P1830 Print assembly, laser/mirror E230 . . . . . . . . . . . . . . . . . . . . . .7-5
56P1831 Card, controller E230 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-5
56P1832 Cover, logo plate E332n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
56P1833 Cover, logo plate E230 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
56P1834 Tray, main (white) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
56P2070 Fuser assembly, 100 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-5
56P2072 Fan, cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-5
56P2073 Coupling assembly, developer drive . . . . . . . . . . . . . . . . . . . . .7-7
56P2074 Clutch CBM, manual feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-7
56P2075 Clutch CBM, ACM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-7
56P2076 Sensor, toner level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-5
56P2077 Cable assemblies, miscellaneous . . . . . . . . . . . . . . . . . . . . . .7-5
56P2077 Cable assembly, misc.- fuser power . . . . . . . . . . . . . . . . . . . . .7-5
56P2077 Cable assembly, misc.- LVPS/HVPS to controller . . . . . . . . . .7-5
56P2077 Cable assembly, misc.- main drive motor . . . . . . . . . . . . . . . . .7-5
56P2077 Cable assembly, misc.- toner sensor . . . . . . . . . . . . . . . . . . . .7-5
56P2077 Fuser power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-5
56P2078 Guide assembly, paper exit . . . . . . . . . . . . . . . . . . . . . . . . . . .7-7
56P2079 Cover assembly, top . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
56P2080 Cover, left . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
56P2081 Cover, logo plate E330 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
56P2082 Latch CBM, access cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-7
56P2083 Link CBM, door-fuser idle gear . . . . . . . . . . . . . . . . . . . . . . . . .7-7
56P2084 Tray 2, optional (white) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
56P2085 Cover, logo plate E232 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
56P2086 Cover, logo plate (plain) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
56P2087 Cover assembly, rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-3
I-7
4505
56P2088 Tray, main . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
56P2089 Drawer, optional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
56P2090 Tray 2, optional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
56P2091 Cover assembly, front access (white) . . . . . . . . . . . . . . . . . . . 7-3
56P2092 Operator panel assembly, operator panel with PCB assembly
(white) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
56P2093 Cover, right (white) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
56P2094 Cover, legal extender (white) . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
56P2095 Cover, left (white) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
56P2096 Cover, logo plate (white) E330 . . . . . . . . . . . . . . . . . . . . . . . . 7-3
56P2097 Cover, logo plate (white) E232 . . . . . . . . . . . . . . . . . . . . . . . . 7-3
56P2098 Cover assembly, rear (white) . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
56P2231 Card assembly, Korean font . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
56P2628 Cover, logo plate (white) E230 . . . . . . . . . . . . . . . . . . . . . . . . 7-3
56P2629 Cover, logo plate (white) E332 . . . . . . . . . . . . . . . . . . . . . . . . 7-3
56P2646 Screws, miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
56P2647 Springs, front door and ACM . . . . . . . . . . . . . . . . . . . . . . 7-3, 7-7
56P2648 Rings, plastic snap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
56P2703 Cover, logo plate E234 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
56P2704 Card, controller, E234 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
56P2705 Card, controller, E234n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
56P9926 Software, Optra Forms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
56P9927 Software, Optra Forms director . . . . . . . . . . . . . . . . . . . . . . . . 7-9
7372839 Package assembly, field relocation . . . . . . . . . . . . . . . . . . . . . 7-9
I-8 Service Manual
4505

