Epson 2180 - LQ B/W Dot-matrix Printer Service Manual
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Epson 2180 - LQ B/W Dot-matrix Printer Service Manual

Impact serial dot matrix printer
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Impact Serial Dot Matrix Printer
EPSON LQ-2180
®
SEDM98001

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Summary of Contents for Epson 2180 - LQ B/W Dot-matrix Printer

  • Page 1 6 6 ( ( 5 5 9 9 , , & & ( ( 0 0 $ $ 18 18$ $ / / Impact Serial Dot Matrix Printer EPSON LQ-2180 ® SEDM98001...
  • Page 2 „ The contents of this manual are subject to change without notice. „ All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be detected, SEIKO EPSON would greatly appreciate being informed of them.
  • Page 3 2. MAKE CERTAIN THAT THE SOURCE VOLTAGES IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/RATING PLATE. IF THE EPSON PRODUCT HAS A PRIMARY AC RATING DIFFERENT FROM AVAILABLE POWER SOURCE, DO NOT CONNECT IT TO THE POWER SOURCE.
  • Page 4 CHAPTER 5. TROUBLESHOOTING Provides the step-by-step procedures for troubleshooting. CHAPTER 6. MAINTENANCE Provides preventive maintenance procedures and the lists of Epson-approv lubricants and adhesives required for servicing the product. APPENDIX Provides the following additional information for reference: • EEPROM Address Map •...
  • Page 5 Revision Status Revision Issued Date Description February 3, 1999 First Release...

  • Page 6: Table Of Contents

    Contents Product Description Disassembly and Assembly ....................8 Specifications Features ........................ 8 Adjustment Accessories ......................8 Printing Specifications ................... 9 ...................... 33 Overview Paper Handling ...................... 9 Pre-operation for the Adjustment Program ............33 Paper Specifications .................... 11 Bi-D Adjustment ....................35 Electrical Specifications ..................

  • Page 7: Product Description

           PRODUCT DESCRIPTION...

  • Page 8: Specifications

    LQ-2180 Revision A 1.1 Specifications 1.1.2 Accessories † Items included in the printer carton The LQ-2180 is a revised model of the already existing LQ-2170. Since the specifications for the both products are mostly common except for Table 1-1. Items Included in the Printer the LQ-2180’s improved features such as printing speed and copy Items Quantity...

  • Page 9: Printing Specifications

    LQ-2180 Revision A 1.1.3 Printing Specifications 1.1.4 Paper Handling † Copy capability: 1 original + 5 copies This section only describes the release lever setting, adjust lever setting, and some other specifications which are specific to LQ-2180. † Printing speed and printable column (See the table below.) For the rest of the specifications, see the LQ-2170 Service Manual.
  • Page 10 LQ-2180 Revision A † Release lever: † Adjust lever: See the following table. See the following table. Table 1-5. Release Lever Settings Table 1-6. Adjust Lever Setting Position Lever Position Paper path / Feeder Paper / Media Paper Thickness (inch) Setting Paper Thickness (mm) Position...

  • Page 11: Paper Specifications

    LQ-2180 Revision A 1.1.5 Paper Specifications Table 1-8. Cut Sheet (Multi Part) Front Entry Rear Entry This section provides paper specifications for the LQ-2180. Minimum Maximum Minimum Maximum Table 1-7. Cut Sheet (inch) 16.5 16.5 Width (mm) Front Entry Rear Entry (inch) 16.5 16.5...
  • Page 12 LQ-2180 Revision A Table 1-9. Card Table 1-10. Envelope Front Entry Rear Entry Front Entry Rear Entry Minimum Maximum Minimum Maximum Minimum Maximum Minimum Maximum (inch) (inch) Width Width - - - (mm) (mm) Envelop (No. 6) (inch) (inch) Length Length - - - (mm)
  • Page 13 LQ-2180 Revision A Table 1-11. Continuous Paper (Single sheet and Multi Part) Table 1-12. Continuous Paper with Labels Front Entry Rear Entry Bottom Entry Front Entry Bottom Entry Rear Entry Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min.
  • Page 14 LQ-2180 Revision A Table 1-13. Roll Paper Front Entry Rear Entry Minimum Maximum Minimum Maximum (inch) Width - - - (mm) (inch) Length - - - - - - (mm) (inch) 0.0028 0.0035 Thickness - - - - - - (mm) 0.07 0.09...

  • Page 15: Electrical Specifications

    LQ-2180 Revision A 1.1.6 Electrical Specifications † 230 V version The electrical specifications for the LQ-2180 is the same as for the LQ- 2170 except for the items below. For information on other items, see the „ Safety standards: EN60950 (TUV) LQ-2170 Service Manual.

  • Page 16: Firmware Specifications

    EPSON Roman T 10.5 pt., 8 pt., - 32 pt. (every 2 pt.) PC861 (Icelandic) PC865 (Nordic) PC APTEC(Arabic) EPSON Sans Serif H 10.5 pt., 8 pt., - 32 pt. (every 2 pt.) PC708 (Arabic) PC720 (Arabic) PCAR864 (Arabic) Bar codes...
  • Page 17 EPSON Courier PC 858 EPSON Sans Serif EPSON Prestige EPSON Roman T Italic table* PC 437(US, Standard Europe)* EPSON Script EPSON Sans Serif H PC 850 (Multilingual)* PC 860(Portuguese)* EPSON OCR-B PC 861 (Icelandic)* PC863 (Canadian-French)* EPSON Orator PC 865(Nordic)*...

  • Page 18: Interface Specifications

    (IEEE-1284 level 1 device) † Device ID: † Pin assignment: The pin assignment (forward channel) is [00H][4DH] the same as for the LQ-2170 except for MFG: EPSON; the functions of the pins below: CMD: ESCPL2,PRPXL24,BDC; MDL: LQ-2180; Pin No. Function CLS: PRINTER;...

  • Page 19: Operation Instruction

    LQ-2180 Revision A 1.3 Operation Instruction † Operation at power on This section provides information on the LQ-2180 control panel buttons, Turning on the printer while pressing panel buttons executes the LED, and operations. Since the layout and functions of the control panel functions below: are mostly common to those of LQ-2170, this section only shows the information that is specific to LQ-2180.

  • Page 20: Eeprom Initialization

    LQ-2180 Revision A 1.3.3 EEPROM Initialization Areas reset by EEPROM clear operation (described in Section 1.3.1) Table 1-17. Initialization Area for EERPOM (2/2) are as shown in the following tables: Item Factory setting Skip over perforation Table 1-16. Initialization Area for EEPROM (1/2) High speed draft Item Factory setting...

  • Page 21: Main Components

    LQ-2180 Revision A 1.4 Main Components The main components for the LQ-2180 are as follows. They are designed for easy disassembly and repair work. † C272MAIN Board † C165 PSB/PSE Board † C165 PNL Board † Printer Mechanism † Housing (upper and lower cases) Figure 1-3.

  • Page 22: C272Main Board

    LQ-2180 Revision A 1.4.1 C272MAIN Board The C272MAIN Board is composed of the CPU (TMP96C141), gate Note the C272MAIN Board has the following 4 versions; 1) Standard array (E05B42), program ROM that integrates the CG, EEPROM, and version, 2) NLSP version, 3) Korean version, and 4) Thai version. 24 transistors used to drive the printhead.

  • Page 23: Printer Mechanism

    LQ-2180 Revision A 1.4.2 Printer Mechanism Appearance of the printer mechanism for the LQ-2180 is the same as for the LQ-2170. However, please be aware of the printhead’s incompatibility with the LQ-2180. Product Description Main Components...

  • Page 24: Operating Principles

    & + $ 3 7 ( 5 OPERATING PRINCIPLES...

  • Page 25: Control Circuit

    LQ-2180 Revision A 2.1 Control Circuit The following figure shows the data flow from the host computer to the The control circuit of the LQ-2180 is composed of the C272MAIN board printhead. Data sent from the host computer is converted to image data and the C165PNL board.

  • Page 26: System Reset Circuit

    LQ-2180 Revision A 2.1.2 System Reset Circuit The following table lists the each function of the main components of the C272 MAIN board. The reset IC (IC2) outputs a reset signal under the conditions below to feed back the status to the CPU and the gate array: Table 2-1.

  • Page 27: Printhead Driver Circuit

    LQ-2180 Revision A 2.1.3 Printhead Driver Circuit Printhead drive begins with monitoring the 35 V line currently applied. This function enables the printer to change the period of time for applying current to the printhead slightly depending on the condition. As a result, the printer can output image at a constant density.

  • Page 28: Cr Motor Driver Circuit

    LQ-2180 Revision A 2.1.4 CR Motor Driver Circuit 2.1.5 PF Motor Driver Circuit The CPU (IC4) directly controls the phase change of the CR motor. The gate array (IC3) manages the PF motor control. The driver IC for SLA7024M (IC11), the driver IC for the CR motor, performs bi-polar the PF motor, which enables the constant current drive, receives the constant current drive to detects the amount of current flowing into the phase change signal directly from the gate array and determines the...

  • Page 29: Eeprom Control Circuit

    LQ-2180 Revision A 2.1.6 EEPROM Control Circuit 2.1.7 Sensor Circuit When the printer power is turned off, the EEPROM stores the factory Unlike the LQ-2170, both the CPU and the gate array monitor and settings and values in the areas that are not cleared in the user setting control the corresponding sensors’...

  • Page 30: Disassembly And Assembly

    & + $ 3 7 ( 5 DISASSEMBLY AND ASSEMBLY...
  • Page 31 LQ-2180 Revision A The contents of the chapter “Disassembly and Assembly” is the same as for the LQ-2170 Service Manual. Disassembly and Assembly...

  • Page 32: Adjustment

    & + $ 3 7 ( 5 ADJUSTMENT...

  • Page 33: Overview

    LQ-2180 Revision A 4.1 Overview NOTE: If you omit this operation, the printer will perform Uni-D print instead of Bi-D. The adjustment items required for the LQ-2180 are the same as for the 5. Double-click “LQSERIES.EXE”. The program starts up and the LQ-2170.
  • Page 34 LQ-2180 Revision A Figure 4-3. Main Menu Selection Screen Figure 4-2. Destination Selection Screen 10. Select “Perform”. The following screen appears. 8. Check the printer to be adjusted for the destination; NLSP or Standard, then select the destination and press the Enter key. „...

  • Page 35: Bi-D Adjustment

    LQ-2180 Revision A 4.1.2 Bi-D Adjustment „ The value “0” shown in the screen shown in Figure This adjustment is made after the main board or the CR motor has been 4-5 is the initial value used in the program, which replaced.

  • Page 36: Tpe Level Reset

    LQ-2180 Revision A 4.1.3 TPE Level Reset 6. When this adjustment is completed, if you need to perform another adjustment using this program, you can continue without turning off Make this adjustment when the main board or Top PE Sensor has been the printer.

  • Page 37: Writing The User-Characteristic Data

    LQ-2180 Revision A 4.1.4 Writing the User-characteristic Data Use this function to check the specific records of the printer used by [To check the current status] your customer. Also, you can renew the starting date using this 3. Select “Characteristic Status Code” and press the Enter key. The program.
  • Page 38 LQ-2180 Revision A Figure 4-10. Screen - Setting Starting Year / Month / Date 5. Input a 6-digit data. Be sure to input it correctly since this programs does not perform comparison check with the system timer. If you input a wrong data, start from the beginning. Adjustment Overview...

  • Page 39: Troubleshooting

           TROUBLESHOOTING...

  • Page 40: Overview

    LQ-2180 Revision A 5.1 Overview 5.2.1 Printhead The information in this section is the same as for the LQ-2170. This chapter contains flowcharts and checkpoint tables to help you troubleshoot the printer. The checkpoint tables let you identify the faulty 5.2.2 Sensors part or unit by checking the values or ranges listed for each component.

  • Page 41: Unit Level Troubleshooting

    LQ-2180 Revision A 5.3 Unit Level Troubleshooting Table 5-2. Repairing the C272MAIN Board (1/3) The information for this section is the same as for the LQ-2170 except Problem Cause Checkpoint Solution for some points. The points to be changed are as follows: The printer does Reset IC2 is Check the voltage...
  • Page 42 LQ-2180 Revision A Table 5-3. Repairing the C272MAIN Board (2/3) Table 5-4. Repairing the C272MAIN Board (3/3) Problem Cause Checkpoint Solution Problem Cause Checkpoint Solution • Check input signal waveform Check the oscillator signal at at pins 1, 2, 23, and 24 of IC2. pins 26 or 27 of the CRU1.

  • Page 43: Repairing The Printer Mechanism

    LQ-2180 Revision A 5.6 Repairing the Printer Mechanism The information for this section is also the same as for the LQ-2170 except for the point below. Point: Table 5-8 CN12 CN12 or CN16 Troubleshooting Repairing the Printer Mechanism...

  • Page 44: Maintenance

           MAINTENANCE...

  • Page 45: Maintenance

    LQ-2180 Revision A The contents of the chapter “Maintenance” is the same as for the LQ-2170 Service Manual. Maintenance...

  • Page 46: Appendix

           APPENDIX...

  • Page 47: Eeprom Address Map

    LQ-2180 Revision A 7.1 EEPROM Address Map Table 7-2. EEPROM Address Map (2/7) Q-pit Factory Address Data Data Format data setting This chapter provides EEPROM Address Map for LQ-2180 and component layouts and circuit diagram for the C272 Main Board. 04H, 05H Page length for rear 1 to 22x360 (by 1/360 inch)
  • Page 48 LQ-2180 Revision A Table 7-3. EEPROM Address Map (3/7) Table 7-4. EEPROM Address Map (4/7) Q-pit Factory Q-pit Factory Address Data Data Format Address Data Data Format data setting data setting 0: 10 cpi 3: 17 cpi b0: Software Pitch selection Software 0: ESC/P2, 1: 12 cpi...
  • Page 49 LQ-2180 Revision A Table 7-5. EEPROM Address Map (5/7) Table 7-6. EEPROM Address Map (6/7) Q-pit Factory Q-pit Factory Address Data Data Format Address Data Data Format data setting data setting b0: LOAD function Panel mask Starting Year 0 - 99 (the last two figures of pattern 1 b1: EJECT function Anno Domini)
  • Page 50 LQ-2180 Revision A Table 7-7. EEPROM Address Map (7/7) Q-pit Factory Address Data Data Format data setting Area 2 0: Standard version Market 1: NLSP version 0: Table2 IBM character table 1: Table1 (reserved) Check sum of Area 2 Area 3 Vp adjustment value Vp adjustment value (complement of 72H)

  • Page 51: Connector Summary

    LQ-2180 Revision A 7.2 Connector Summary The table below shows the cable alignment of the C272 Main Board. The following figure shows how primary components are connected. Table 7-8. C272 Main Board Connection Board Connector Function Pins Parallel interface Type B interface C165 PSB/PSE board assembly HP sensor Rear PE sensor...
  • Page 52 LQ-2180 Revision A NOTE: The table below provides information of the connector that vary from C165 Main Board used in LQ-2170. Figure 7-2. Connector Pin Assignment (Changed/new items only) LQ-2170 (C165MAIN) LQ-2180 (C272MAIN) Connector Function Pin alignment Connector Function Pin alignment 1: A 1: +35V CN14...

  • Page 53: Component Layout

    LQ-2180 Revision A 7.3 Component Layout Figure 7-3. C272Main Component Layout - Component Side Appendix Component Layout...
  • Page 54 LQ-2180 Revision A Figure 7-4. C272Main Component Layout - Soldering Side Appendix Component Layout...

  • Page 55: Circuit Diagram

    LQ-2180 Revision A 7.4 Circuit Diagram See the following page for the dircuit digram of the C272 Main Board. Appendix Circuit Diagram...

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