Hp Laserjet 4000 Series 4050 Users Manual Service

2015-02-09

• Contents
• Chapter 1 Printer Description
  • Overview
  • Printer Features
  • Identification
    • Model and Serial Numbers
  • Site Requirements
    • Space Requirements
    • Environmental Requirements
  • Paper Specifications
    • Supported Types of Paper
    • Guidelines for Using Paper
    • Labels
    • Transparencies
    • Envelopes
    • Card Stock and Heavy Paper
  • Safety Information
    • Laser Safety Statement
    • Canadian DOC Regulations
    • FCC Regulations
    • Laser Statement for Finland
    • Toner Safety
    • Environmental Product Stewardship
• Chapter 2 Service Approach
  • Overview
  • Service Approach
  • Parts and Supplies
    • Ordering Information
    • Helpful Documentation
    • Phone Numbers for Ordering
    • Exchange Program
    • Consumables
    • World Wide Web
    • HP Service Parts Information Compact Disc
    • HP Support Assistant Compact Disc
    • HP FIRST
    • Toner Cartridge Information
  • Warranty Statement
• Chapter 3 Printer Operation
  • Overview
  • Using the Control Panel
    • Control Panel Layout
    • Control Panel Lights
    • Control Panel Keys
    • Settings and Defaults
  • Control Panel Menus
    • Quick Copy Jobs Menu
    • Private/Stored Jobs Menu
    • Information Menu
    • Paper Handling Menu
    • Print Quality Menu
    • Printing Menu
    • Configuration Menu
    • I/O Menu
    • EIO Menu (Networked Printers)
    • Resets Menu
  • Service Mode
    • Service Menu
    • Setting the Page Count, Maintenance Count, and Ser...
    • Cold Reset Paper
    • Diagnostics
    • Clear Event Log
  • Testing the Printer
  • Resetting the Printer
  • System Configuration
    • MS-DOS System Configuration
    • Parallel DOS Commands
    • Serial MS-DOS Commands
  • Printer I/O Configuration
    • Parallel Menu
    • Serial Configuration
• Chapter 4 Printer Maintenance
  • Overview
  • Cleaning the Printer and Accessories
    • Cleaning Spilled Toner
  • Preventative Maintenance
    • Reset Maintenance Count
    • Expected Life of Components
• Chapter 5 Functional Information
  • Overview
  • Power Supply System
    • AC/DC Power Distribution
    • Overcurrent Overvoltage Protection
    • High-voltage Power Distribution
    • Toner Cartridge Detection
  • Engine Controller System
    • Engine Controller Board Inputs and Outputs
    • Laser and Scanner Drive
    • Paper Motion Monitoring and Control
    • Solenoids, Sensors, Clutches, and Switches
    • Engine Test Print
    • Motors
  • Formatter System
    • PowerSave
    • Resolution Enhancement technology (REt)
    • EconoMode
    • Input/Output
    • CPU
    • Printer Memory
    • Random Access Memory (RAM)
    • DIMM Slots
    • Page Protect
    • PJL Overview
    • PML
    • Control Panel
  • Image Formation System
    • Toner Cartridge
    • Photosensitive Drum
    • Writing the Image
    • Developing the Image
    • Transferring the Image
    • Image Fusing/Variable Fusing Temperature
  • Paper Feed System
    • Clutches and Sensors
    • Printing from Tray 1
    • Printing from Tray 2
    • Printing from the Optional 500-sheet Universal Tra...
    • Envelope Feeder
    • Duplexer
    • Paper Jam
  • Basic Sequence of Operation
• Chapter 6 Removing and Replacing Parts
  • Overview
  • Removal and Replacement Strategy
    • Tools
  • Removing Covers
    • Rear Right Side Cover
    • Top Cover
    • Left Side Cover
    • Front Right Side Cover
    • Rear Cover/Rear Output Bin
    • Tray 1
  • Removing Assemblies
    • Fuser
    • Formatter Cage Assembly
    • Output Assembly
    • Laser Scanner
    • Fan
    • Main Motor
    • Transfer Roller
    • Tray 1 Pickup Roller
    • Tray 1 Pickup Assembly
    • Right Side Toner Cartridge Guide
    • Registration Assembly
    • Paper Feed Assembly
    • Formatter Pan
    • Gear Train
    • Delivery Drive Assembly
  • Separating the Engine Module from the Paper Feed M...
    • Engine Controller Board
    • Paper Feed Rollers
    • Separation Rollers
    • Paper Feed Module Plate
    • Paper Feed Module Gear Train Assembly
    • Paper Feed Module Side Rails
    • Lower Paper Feed Module Plate (HPLaserJet 4000T/...
    • PCA Cover (HPLaserJet 4000T/4000TN and 4050T/4...
    • PCA Cover (HPLaserJet 4000/4000N and 4050/4050N...
    • PCA Controller
• Chapter 7 Troubleshooting
  • Overview
  • Troubleshooting Process
    • Troubleshooting Flowchart
    • Troubleshooting Flowchart (Continued)
  • Troubleshooting the Printing System
    • Preliminary Operating Checks
    • Power On
    • Engine Test
    • Display
    • Event Log
    • Printer Messages
    • General Paper Path Troubleshooting
    • Information Pages
    • Image Quality
    • Image System Troubleshooting
    • Interface Troubleshooting
    • AUTOEXEC.BAT Standard Configurations
  • Reference Diagrams
    • Locations of Components
    • Paper Path
    • Engine Controller Board
    • Paper Size Detection Switches
    • Motors
    • Connectors
    • PCAs
    • Sensors and Thermistor
    • Solenoids and Clutch
    • Switches
    • Timing
• Chapter 8 Parts and Diagrams
  • Overview
  • How To Use the Parts Lists and Diagrams
  • Accessories and Supplies
    • Common Screws and Replacement Cables
  • Illustrations and Parts Lists
    • Alphabetical Parts List
    • Numerical Parts List
• Index