Epson FRONT Service Manual LQ 2180

• LP-2180
  • Product Description
    • 1.1 Specifications
      • 1.1.1 Features
      • 1.1.2 Accessories
        • Table 11. Items Included in the Printer
        • Table 12. Items Included in the Printer
        • Table 13. Items Included in the Printer
      • 1.1.3 Printing Specifications
        • Table 14. Print Speed and Corresponding Printable Columns
      • 1.1.4 Paper Handling
        • Table 15. Release Lever Settings
        • Table 16. Adjust Lever Setting Position
      • 1.1.5 Paper Specifications
        • Table 17. Cut Sheet
        • Table 18. Cut Sheet (Multi Part)
        • Table 19. Card
        • Table 110. Envelope
        • Table 111. Continuous Paper (Single sheet and Multi Part)
        • Table 112. Continuous Paper with Labels
        • Figure 11. Printable Area - Label
        • Table 113. Roll Paper
      • 1.1.6 Electrical Specifications
      • 1.1.7 Reliability
      • 1.1.8 Safety Approvals
      • 1.1.9 CE Marking
    • 1.2 Firmware Specifications
      • 1.2.1 Control Codes and Fonts
        • Table 114. Character Tables and Available Typefaces
      • 1.2.2 Interface Specifications
        • 1.2.2.1 Parallel Interface (Forward Channel)
        • 1.2.2.2 Parallel Interface (Reverse Channel)
    • 1.3 Operation Instruction
      • 1.3.1 Control Panel
        • Figure 12. Control Panel
        • Table 115. Operations at Power On
      • 1.3.2 Bi-directional Adjustment Function
        • 1. Bi-directional adjustment for draft mode
          • 2. Bi-directional adjustment for draft copy mode
          • 3. Bi-directional adjustment for LQ mode
      • 1.3.3 EEPROM Initialization
        • Table 116. Initialization Area for EEPROM (1/2)
        • Table 117. Initialization Area for EERPOM (2/2)
    • 1.4 Main Components
  • Operating Principles
    • 2.1 Control Circuit
      • 2.1.1 Overview of the Control Circuit Operation
        • Figure 21. Control Circuit Block Diagram
        • Figure 22. Data Flow
        • Table 21. Functions of the Main Board
      • 2.1.2 System Reset Circuit
        • Figure 23. Reset Circuit
      • 2.1.3 Printhead Driver Circuit
        • Figure 24. Printhead Drive Circuit
      • 2.1.4 CR Motor Driver Circuit
        • Figure 25. CR Motor Driver Circuit
      • 2.1.5 PF Motor Driver Circuit
        • Figure 26. PF Motor Driver Circuit
      • 2.1.6 EEPROM Control Circuit
      • 2.1.7 Sensor Circuit
        • Figure 27. EEPROM Control Circuit
        • Figure 28. Sensor Circuit
  • Disassembly and Assembly
  • Adjustment
    • 4.1 Overview
      • 4.1.1 Pre-operation for the Adjustment Program
        • 1. Get a continuous paper. (136-column paper should be used to avoid printing on the platen.)
          • 2. Set the release lever to the continuous paper position.
          • 3. Connect the printer and the PC and turn the printer on.
          • 4. Press the Load/Eject button to send the paper to the stand-by position. Then press the LF/FF b...
          • 5. Double-click “LQSERIES.EXE”. The program starts up and the screen below appears.
          • Figure 41. LQSERIES.EXE Initial Screen
            • 6. Move the cursor to “LQ-2180” and press the Enter key.
            • 7. The following screen appears.
          • Figure 42. Destination Selection Screen
            • 8. Check the printer to be adjusted for the destination; NLSP or Standard, then select the destin...
            • 9. The following screen appears.
          • Figure 43. Main Menu Selection Screen
            • 10. Select “Perform”. The following screen appears.
          • Figure 44. Main Menu Screen
      • 4.1.2 Bi-D Adjustment
        • 1. Perform the pre-operation. (See Section 4.1.1.)
          • 2. Select “1. Bi-D Adjustment”. The following screen appears.
          • Figure 45. Initial Menu of the Bi-D Adjustment
            • 3. Press the Space key to check the current Bi-D setting condition for the High speed draft mode....
          • Figure 46. Bi-D Pattern Sample
            • 4. Output the patterns for the Draft Copy Mode and the LQ Mode, the rest of the three modes in th...
            • 5. Examine the patterns for the three modes output in the previous steps, and correct the value i...
            • 6. When this adjustment is completed, if you need to perform another adjustment using this progra...
      • 4.1.3 TPE Level Reset
        • 1. Perform the pre-operation. (See Section 4.1.1.)
          • 2. Select “TPE Reset” in the main menu screen (Figure 44) and press the Enter key. The screen be...
          • Figure 47. Screen - TPE Reset
            • 3. Select “Yes” and press the Enter key. FF is written in EEPROM when the printer power is turned...
      • 4.1.4 Writing the User-characteristic Data
        • 1. Perform the pre-operation. (See Section 4.1.1.)
          • 2. Select “Set or Reply Starting Date” and press the Enter key. The screen below appears.
          • Figure 48. Screen - Set or Reply Starting Date
            • 3. Select “Characteristic Status Code” and press the Enter key. The following screen appears.
          • Figure 49. Screen - Characteristic Status Code
            • 4. Select “Set Starting year / month / date” and press the Enter key. The following screen appears.
          • Figure 410. Screen - Setting Starting Year / Month / Date
            • 5. Input a 6-digit data. Be sure to input it correctly since this programs does not perform compa...
  • Troubleshooting
    • 5.1 Overview
    • 5.2 Troubleshooting Information
      • 5.2.1 Printhead
      • 5.2.2 Sensors
        • Table 51. Sensor Test Points
      • 5.2.3 Motors
      • 5.2.4 Error Codes with Indicators and Buzzer
    • 5.3 Unit Level Troubleshooting
    • 5.4 Repairing the C165 PSB/PSE Board
    • 5.5 Repairing the C272MAIN Board
      • Table 52. Repairing the C272MAIN Board (1/3)
      • Table 53. Repairing the C272MAIN Board (2/3)
      • Table 54. Repairing the C272MAIN Board (3/3)
    • 5.6 Repairing the Printer Mechanism
  • Maintenance
  • Appendix
    • 7.1 EEPROM Address Map
      • Table 71. EEPROM Address Map (1/7)
        • 0: PC437
        • 1: PC850
        • 2: PC860
        • 3: PC863
        • 4: PC865
        • 5: PC861
        • 6: BRASCII
        • 7: Abicomp
        • 8: ISO Latin 1
        • 9: Roman 8
        • 10: PC437 Greek
        • 11: PC852
        • 12: PC853
        • 13: PC855
        • 14: PC857
        • 15: PC864
        • 16: PC866
        • 17: PC869
        • 18: ISO Latin 1T
        • 19: ISO 8859-7
        • 20: MAZOWIA
        • 21: Code MJK
        • 22: Bulgaria
        • 23: Estonia
        • 24: PC774
        • 25: ISO 8859-2
        • 26: PC866 LAT
        • 27: PC866 UKR
        • 28: Hebrew 7
        • 29: Hebrew 8
        • 30: PC862
        • 31: PCAPTEC
        • 32: PC708
        • 33: PC720
        • 34: PCAR864
        • 35: PC858
        • 36: ISO 8859-15
        • 37: Italic U.S.A.
        • 38: Italic France
        • 39: Italic Germany I
        • 40: Italic U.K.
        • 41: Italic Denmark
        • 42: Italic Sweden
        • 43: Italic Italy
        • 44: Italic Spain
      • Table 72. EEPROM Address Map (2/7)
        • 0: Roman
        • 1: Draft
        • 2: Sans serif
        • 3: Courier
        • 4: Prestige
        • 5: Script
        • 6: Others (the default)
      • Table 73. EEPROM Address Map (3/7)
        • 0: 10 cpi
        • 1: 12 cpi
        • 2: 15 cpi
        • 3: 17 cpi
        • 4: 20 cpi
        • 5: Proportional
        • 0: Bi-d.
        • 1: Uni-d.
        • 2: Auto
        • 0: Auto I/F selection
        • 1: Parallel I/F
        • 2: Type-B I/F
        • b0: Auto line feed 0: Off, 1: On
        • b1: Auto tear off 0: Off, 1: On
        • b2: Skip over perforation 0: Off, 1: On
        • b3: High speed draft 0: On, 1: Off
        • b4: Input buffer 0: On, 1: Off
        • b5: (reserved)
        • b6: (reserved)
        • b7: (reserved)
      • Table 74. EEPROM Address Map (4/7)
        • b0: Software 0: ESC/P2, 1: IBM 2391 Plus
        • b1: 0 slash, 0: Off, 1: On
        • b2: Buzzer 0: On, 1: Off
        • b3: Roll paper 0: Off, 1: On
        • b4: Auto CR (IBM) 0: Off, 1: On
        • b5: A. G. M. (IBM) 0: Off, 1: On
        • b6: (reserved)
        • b7: (reserved)
        • 0: Roman
        • 1: Sans Serif H
        • 2: OCR-B
        • 3: Orator
        • 4: Orator-S
        • 5: Script C
        • 0: Friction Bin 1 or Tractor not Tear off
        • 1: Friction Bin 1
        • 2: Friction Bin 2
        • 3: Friction Card
        • 4: Tractor & Tear off
      • Table 75. EEPROM Address Map (5/7)
        • b0: LOAD function
        • b1: EJECT function
        • b2: FONT selection
        • b3: PITCH selection
        • b4: TEAR OFF function
        • b5: BIN selection
        • b6: Draft self test
        • b7: LQ self test
        • b0: LF function
        • b1: FF function
        • b2: Micro Adjust function
        • b3: Pause function
        • b4: Data dump
        • b5: Default setting
        • b6: Bi-d. adjustment
        • b7: (reserved)
        • 0: Off
        • 1: On
      • Table 76. EEPROM Address Map (6/7)
        • b0: black paper mode 0: Off, 1: On
        • b1: paper width measure 0: On, 1: Off
        • b2: b2 to b7: (reserved)
      • Table 77. EEPROM Address Map (7/7)
        • 0: Standard version
        • 1: NLSP version
        • 0: Table2
        • 1: Table1
    • 7.2 Connector Summary
      • Figure 71. Cable Connections
      • Table 78. C272 Main Board Connection
      • Figure 72. Connector Pin Assignment (Changed/new items only)
        • 1: A
        • 2: B
        • 3: -A
        • 4: -B
        • 5: HOLD
        • 6: +5V
        • 7: GND
        • 8: GND
        • 9: +35V
        • 10: +35V
        • 1: +35V
        • 2: +5V
        • 3: HOLD
        • 4: +35V
        • 5: -A
        • 6: B
        • 7: GND
        • 8: GND
        • 9: A
        • 10: -B
        • 1: RELEASE 1
        • 2: GND
        • 3: RELEASE 2
        • 4: GND
        • 1: RELEASE 1
        • 2: GND
        • 1: RELEASE 2
        • 2: GND
        • 1: PE
        • 2: GND
    • 7.3 Component Layout
      • Figure 73. C272Main Component Layout - Component Side
      • Figure 74. C272Main Component Layout - Soldering Side
    • 7.4 Circuit Diagram