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Epson FX-980 Service Manual

Impact serial dot matrix printer
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Impact Serial Dot Matrix Printer
EPSON FX-980
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Summary of Contents for Epson FX-980

  • Page 1  Impact Serial Dot Matrix Printer EPSON FX-980 ®...
  • 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-approved 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 March 17, 1999 First Release...

  • Page 6: Table Of Contents

    EPSON FX-980 Revision A Contents Product Description Operating Principles Overview ....................... 9 Printer Mechanism Operations ..............29 Specifications ....................9 Power Supply Operation ................29 Features ....................9 Control Circuit ................... 30 Accessories .................... 10 Overview of the Control Circuit Operation ..........30 Hardware Specifications ................
  • Page 7 EPSON FX-980 Revision A Motors ....................52 The Error codes with Indicators and Buzzer .......... 53 Unit Level Troubleshooting ..............54 Repairing the C166 PSB/PSE Board ............54 Repairing the C276 Main Board ............... 54 Repairing the Printer Mechanism ............56...

  • Page 8: Product Description

           PRODUCT DESCRIPTION...

  • Page 9: Overview

    1 original + 5 copies always 1 original + 6 copies at pull tractor feed (front, bottom) The EPSON FX-980 serial impact dot matrix printeris designed based on the existing FX-2170. Both products are common in most features, Control panel functions: Font, Pause, Condensed Pause, Tear off, but vary in width;...

  • Page 10: Accessories

    FX-980 Revision A 1.2.2 Accessories Table 1-1. Items Included with the Printer Enclosed Items Quantity User's manual Driver diskette Ribbon cartridge Power supply cable (230 V Version) Table 1-2. Consumable and Optional Items Unit Description Ribbon cartridge S015091-0036 Ribbon pack S010036-0036 High-capacity cut sheet feeder (bin 1) C806841 (EAI), C806842 (Non-EAI)

  • Page 11: Hardware Specifications

    FX-980 Revision A 1.3 Hardware Specifications Print speed and printable columns: See the table below. Table 1-4. Print Speed and Printable Columns This section also contains information specific to the FX-980. For other Print Speed (cps) information, refer to the FX-2170 Service Manual. Character Printable Print Mode...

  • Page 12: Paper Handling

    FX-980 Revision A 1.3.2 Paper Handling Feeding method Friction feed (front, rear) Push tractor feed (front lever) Push & Pull tractor feed (front, rear) Pull tractor feed (front, rear, bottom) Feed speed Normal mode: 1/6 inch feed: 46 msec Continuous feed: 0.127 MPS (m/second) 5.0 IPS (inches / second) Copy mode: 1/6 inch feed:...
  • Page 13 FX-980 Revision A Release lever: See the following table. Paper thickenss lever: 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 Cut sheet...

  • Page 14: Paper Specifications

    FX-980 Revision A 1.3.3 Paper Specifications Cut sheet (multipart) This section provides paper specifications for the FX-980. Table 1-8. Cut Sheet (Multipart) Front Entry Rear Entry Cut seet (single sheet, not multipart) Minimum Maximum Minimum Maximum Table 1-7. Cut Sheet (Single Sheet, Not Multipart) 10.1 10.1 (inch)
  • Page 15 FX-980 Revision A Envelope Continuous paper (Single sheet and Multipart) Table 1-9. Envelope Table 1-10. Continuous Paper (Single sheet and Multipart) Front Entry Rear Entry Front Entry Rear Entry Bottom Entry Minimum Maximum Minimum Maximum Min. Max. Min. Max. Min. Max.
  • Page 16 FX-980 Revision A Coutnuous paper with labels Roll paper Table 1-11. Continuous Paper with Labels Table 1-12. Roll Paper Front Entry Bottom Entry Rear Entry Front Entry Rear Entry Min. Max. Min. Max. Min. Max. Minimum Maximum Minimum Maximum See the figure See the figure (inch) Label size...

  • Page 17: Ribbon Specifications

    FX-980 Revision A 1.3.4 Ribbon Specifications Power consumption: Approximately 46 W (ISO/IEC10561 Letter pattern) Type: Fabric Energy Star Compliant Color: Black Insulation resistance: 10 M min. Ribbon Life: Approximately 7.5 million characters (between AC line and chassis, DC 500 V) (Draft 10 cpi, 14 dots / character) Dielectric strength: AC 1500 Vrms.

  • Page 18: Ce Marking

    FX-980 Revision A EMI: FCC part15 subpart B class B CSA C108.8 class B EN55022 (CISPR pub.22) class B AS/NZS 3548 class B 1.3.8 CE Marking 230 V version & UPS version Low voltage directive 73/23/EEC:EN60950 EMC Directive 89/336/EEC: EN55022 class B EN61000-3-2 EN61000-3-3 EN50082-1...

  • Page 19: Firmware Specifications

    BRASCII Roman 8 EPSON Roman (10 cpi, 12 cpi, 15 cpi, Proportional) ISO Latin 1 PC 858 EPSON Sans Serif (10 cpi, 12 cpi, 15 cpi, Proportional) ISO 8859-15 Bar codes NLSP version (37 character tables) Italic table PC437 (US, Standard Europe)

  • Page 20: Printable Area

    FX-980 Revision A 1.4.2 Printable Area 1.4.3 Interface Specifications Printable area for the FX-980 is the same as for the FX-2170 exept for This printer provides bi-directional 8-bit parallel interface, serial the point below: interface, and Type-B interface ooptional interface card slot as standard.

  • Page 21: Parallel Interface (Reverse Channel)

    Parity biy: Odd, Even, Non, Ignore Device ID: Stop bit: 1 bit or more [00H][4DH] Baud rate: 2400, 4800, 9600, or 19200 bps MFG: EPSON; CMD: ESCPL2,PRPXL24,BDC; Handshaking: DTR signal and XON/SOFF MDL: FX-980; Error handling: When a parity error is detected, the CLS: PRINTER;...
  • Page 22 FX-980 Revision A Table 1-13. Connector Pin Assignment and Signals for Serial I/F Signal Name Functional Description Transmits data. Indicates that the printer is ready to receive data or not. Connected directly to the DTR signal. Request to send. Always SPACE level when the printer is powered on.

  • Page 23: Operation Instruction

    FX-980 Revision A 1.5 Operation Instruction Operations at power on Turning on the printer while pressing panel buttons executes the This section provides information on the FX-980 control panel buttons, functions shown in the following table. LED, and operations. Since the layout and functions of the control panel are mostly common to those of FX-2170, this section only provides the Table 1-14.
  • Page 24 FX-980 Revision A Table 1-15. Default Setting Menu Status code indicated by the LEDs Item Setting / Value Table 1-16. Status code indicated by the LEDs Standard version / NLSP version: See Section 1.3 for Paper Tear Off / the character tables available. Pause Condensed Font...

  • Page 25: Errors

    FX-980 Revision A 1.5.1 Errors Paper out: When the printer fails to feed a sheet, it goes a paper out error. Release lever error: When release lever position is wrong, it goes a release lever error. Cover Open error: When the printer’s cover is opened, it goes a release lever error. Fatal error: Carriage control error and Power supply voltage error 1.5.2 Bi-directional Adjustment Function...

  • Page 26: Eeprom Initialization

    FX-980 Revision A 1.5.3 EEPROM Initialization Areas reset by EEPROM clear operation (described in Section 1.3.1) are as shown in the following tables: Table 1-18. Initialization Area for EERPOM (2/2) Table 1-17. Initialization Area for EEPROM (1/2) Item Factory setting Item Factory setting Auto line feed...

  • Page 27: Main Components

    FX-980 Revision A 1.6 Main Components 1.6.1 C276 Main Board The C276 Main Board consists of the TMP96C141 CPU, an E05B50 The main components for the FX-980 are as follows. They are designed gate array, a PS-RAM, a PROM, and so on. for easy disassembly and repair work.

  • Page 28: Operating Principles

           OPERATING PRINCIPLES...

  • Page 29: Printer Mechanism Operations

    FX-980 Revision A 2.1 Printer Mechanism Operations See the LQ-2070 Service Manual. 2.2 Power Supply Operation See the LQ-2070 Service Manual. Operating Principles Printer Mechanism Operations...

  • Page 30: Control Circuit

    FX-980 Revision A 2.3 Control Circuit The control circuit consists of the C276 Main Board assembly and C276 PNL Board. This section describes the major components and explains how the boards work. 2.3.1 Overview of the Control Circuit Operation The printer's control circuit includes a TMP96C141 CPU that runs at 19.66 MHz, an E05B50 gate array, a 1M bit PS-RAM (8-bit bus, less than 100ns), a 4M bit PROM (8-bit bus, less than 120ns), and other circuits.
  • Page 31 FX-980 Revision A The following figure shows the data flow from the host computer to the The table below lists the each function of the main components of the printhead. Data sent from the host computer is converted to image data C276 Main Board.

  • Page 32: System Reset Circuit

    FX-980 Revision A 2.3.2 System Reset Circuit Control circuits IC1 and IC2 are initialized when a /RESET signal (LOW level) is output from port 5 (VOUT) of IC15. IC15 monitors the +5 V line on port 2, and resets under the following conditions: 1.

  • Page 33: Printhead Driver Circuit

    FX-980 Revision A 2.3.3 Printhead Driver Circuit 2.3.4 CR Motor Driver Circuit The standard voltage for the A/D converter is made in ZD1 and input to The CR motor driver circuit is shown below. CPU port 78. Based on this standard voltage, the A/D converter in the CPU operates.
  • Page 34 FX-980 Revision A Table 2-2. CR Motor Driver Modes Drive Print Speed Excitation Speed Mode Frequency Application (See the Remarks.) Remarks (CPS) Phase (PPS) 6080 H: High speed draft D: Draft 5700 HN (12 cpi) L: LQ 44/19 5280 HC-1 B: Bit image R: Raster graphics 4560...

  • Page 35: Pf Motor Driver Circuit

    FX-980 Revision A 2.3.5 PF Motor Driver Circuit 2.3.6 EEPROM Control Circuit The figure below shows the PF motor driver circuit. The EEPROM is nonvolatile memory that stores information even if the printer power is off. The figure below shows the EEPROM control circuit.

  • Page 36: Sensor Circuit

    FX-980 Revision A 2.3.7 Sensor Circuit The CPU detects conditions of the following sensors: home position The rear PE sensor detects that paper has been loaded when the photo (HP) sensor, release sensors 1 and 2, platen gap (PG) sensors 1 and 2, diode rays are cut off by the sensor plate, which is included in the rear rear and front paper end (PE) sensors, paper width (PW) sensor, and PE sensor.

  • Page 37: Disassembly And Assembly

           DISASSEMBLY AND ASSEMBLY...

  • Page 38: Overview

    FX-980 Revision A 3.1 Overview This chapter provides disassembling / assembling procedures for the FX-980. Since the most procedures are common to the FX-2170, this chapter only includes information that is specific to the FX-980. 3.2 Printer Disassembly and Assembly The assembly procedures to be explained for the FX-980 are as listed below.

  • Page 39: Adjustment

    FX-980 Revision A 3.2.10 Removing the Printer Mechanism Printer Mechanism Mounting Screws Changed point: The printer mechanism and the connector cover are connected with a screw, so the operation for removing the screw (step 3) is added. 1. Remove the rear / front edge guide assembly, front cover, paper eject assembly, rear / front tractor units, and printer cover (see Section 3.2.1).
  • Page 40 FX-980 Revision A 3.2.10.3 Removing the Right Frame Assembly Changed points: Step 4 for removing the release sensor 1 is added. (See Figure 3-21 for its location.) In the FX-2170, the release sensor 1 is on the left frame. The Hexagon nut standard M7 (step 5) is used instead of the FX-2170’s standard M4.

  • Page 41: Adjustment

    FX-980 Revision A 3.2.10.5 Removing the Left Frame Assembly Changed points: Step 6 There are only two connectors to be disconnected instead of FX-2170’s three, because the FX-980 has only one release lever sensor on the left frame. The Hexagon nut standard M7 is used instead of the FX-2170’s standard M4.

  • Page 42: Adjustment

    FX-980 Revision A 3.2.11 Removing the C276 Main Board Assembly 5. Remove the 2 screws securing the I/F cover and remove the I/F cover. Changed points: 6. Remove the 5 CBB screws (3 x 12, F/Zn) and 1 CBC lamitite screw The C276 Main Board in the FX-980 can be removed without (3 x 8, F/Zn) securing the C276 Main Board assembly to the lower removing the I/F cage, so the operation for removing the cage is...
  • Page 43 FX-980 Revision A Notice the location of the CBC lamitite screw (3 x 8, F/Zn). Refer to Figure 3-37 on the previous page. Lock CN10 and CN11 by pushing down each connector’s lock after inserting the connector cable. The tightening torque for the CBB (3 x 12, F/Zn) screw and CBB (3 x 8, F/Zn) = 0.78 - 0.98 Nm (8 - 10 Kgf - cm) Disassembly and Assembly...

  • Page 44: Adjustment

           ADJUSTMENT...

  • Page 45: Overview

    FX-980 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 FX-980 are the same as for the 5. Double-click “LQSERIES.EXE”. The program starts up and the FX-2170.
  • Page 46 FX-980 Revision A Figure 4-2. Destination Selection Screen Figure 4-3. Main Menu Selection Screen 8. Check the printer to be adjusted for the destination and press the 10. Select “Perform”. The following screen appears. Enter key. Select “No” if you have input a wrong model name in the screen shown in Figure 4-1.

  • Page 47: Bi-D Adjustment

    FX-980 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 48: Tpe Level Reset

    FX-980 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 49: Writing The User-Characteristic Data

    FX-980 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 50 FX-980 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 program does not perform comparison check with the system timer. If you input a wrong data, start from the beginning. Adjustment Overview...

  • Page 51: Troubleshooting

           TROUBLESHOOTING...

  • Page 52: Overview

    FX-980 Revision A 5.1 Overview 5.2.2 Sensors The information for this section is the same as for the FX-2170 except This chapter contains information necessary for troubleshooting. Like for the points below: other chapters, this chapter does not include the information common to the FX-2170.

  • Page 53: The Error Codes With Indicators And Buzzer

    FX-980 Revision A 5.2.4 The Error codes with Indicators and Buzzer Error codes indicated by the LEDs Table 5-2. Error Indication by LEDs Paper Tear Off / Pause Condensed Font Paper out Paper jam Blink Head hot Blink Cover Open Fatal error Blink Blink...

  • Page 54: Unit Level Troubleshooting

    FX-980 Revision A 5.3 Unit Level Troubleshooting Table 5-3. Repairing the C276 Main Board (1/3) The information for this section is the same as for the FX-2170 except Problem Cause Checkpoint Solution for the point below: The printer does Reset IC15 is Check the voltage Replace IC15.
  • Page 55 FX-980 Revision A Table 5-4. Repairing the C276 Main Board (2/3) Table 5-5. Repairing the C276 Main Board (3/3) Problem Cause Checkpoint Solution Problem Cause Checkpoint Solution • Check input signal waveform at The printer does CR1 is Check the oscillator signal at If the signal is Paper feed is IC1 is...

  • Page 56: Repairing The Printer Mechanism

    FX-980 Revision A 5.6 Repairing the Printer Mechanism See the FX-2170 Service Manual. Troubleshooting Repairing the Printer Mechanism...

  • Page 57: Maintenance

           MAINTENANCE...
  • Page 58 FX-980 Revision A See the FX-2170 Service Manual. Maintenance...

  • Page 59: Appendix

           APPENDIX...

  • Page 60: Eeprom Address Map

    FX-980 Revision A 7.1 EEPROM Address Map Table 7-2. EEPROM Address Map (2/7) This chapter provides EEPROM Address Map for FX-980 and Q-pit Factory component layouts and circuit diagram for the C276 Main Board. Address Data Data Format data setting NOTE: The data of two or more bytes are assigned in such was as 04H, 05H Page length for rear...
  • Page 61 FX-980 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 b0: Software 1AH, Bottom margin for 1 to 22 x 432 (by 1/432 inch), 0000H 0000H Software...
  • Page 62 FX-980 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: LF function b0: black paper mode Panel mask Black paper mode 0: Off, 1: On pattern 2...
  • Page 63 FX-980 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 6AH to (reserved) 0: 136 columns Printable column 1: 80 columns Check sum of Area 2 (68H) Area 3...

  • Page 64: Connector Summary

    FX-980 Revision A 7.2 Connector Summary The table below shows the cable alignment of the C276 Main Board. Table 7-8. C276 Main Board Connection The following figure shows how primary components are connected. Board Connector Function Pins Parallel interface Type B interface C166 PSB/PSE / C244 PSH assembly HP sensor...
  • Page 65 FX-980 Revision A The table below provides information of the connector that vary from C166 Main Board used in FX-2170. Figure 7-2. Connector Pin Assignment (Changed/new items only) FX-2170 (C166 Main Board) FX-980 (C276 Main Board) Connector Function Pin assignment Connector Function Pin assignment...

  • Page 66: Component Layout

    FX-980 Revision A 7.3 Component Layout Currently unavailable. Figure 7-3. C276 Main Board Component Layout - Component Side Appendix Component Layout...
  • Page 67 FX-980 Revision A Currently unavailable. Figure 7-4. C276 Main Board Component Layout - Soldering Side Appendix Component Layout...
  • Page 68 FX-980 Revision A Figure 7-5. C244PSH Board Component Layout Appendix Component Layout...

  • Page 69: Circuit Diagrams

    FX-980 Revision A 7.4 Circuit Diagrams See the following pages for the circuit diagrams below: C276 Main Board C276 PNL Board C244 PSH Board Appendix Circuit Diagrams...

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