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Epson DLQ-3000 Minerva+ Service Manual

Impact dot printer
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EPSON IMPACT DOT PRINTER
DLQ-3000
(upgrade model)

SERVICE MANUAL

EPSON
4006094

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Summary of Contents for Epson DLQ-3000 Minerva+

  • Page 1: Service Manual

    EPSON IMPACT DOT PRINTER DLQ-3000 (upgrade model) SERVICE MANUAL EPSON 4006094...
  • Page 2 PREFACE This document provides supplementary information to describe the new DLQ-3000 (Minerva+), which is a follow-on version of the DLQ-3000 (Minerva). Therefore, you must refer to this information in conjunction with DLQ-3000 (Minerva) Service Manual for details on any subjects common to both printers.

  • Page 3: Revision Sheet

    REVISION SHEET Revision Issue Date Revision Page March 15, 1996 1st issue -ii-...
  • Page 4 DLQ-3000 (MINERVA+) Product Description 1.1 FEATURES Minerva+ is a 24-pin serial dot-matrix and flat-bed type impact printer. As this printer follows on DLQ-3000 (MINERVA+), the main future is almost same as DLQ-3000 (MINERVA). The main features are ; Two built-in and one optional I/F Bi-Directional Parallel Interface (IEEE-1284 nibble mode) Serial Interface Type-B Interface (Option)

  • Page 5: Interface Overview

    Product Description DLQ-3000 (MINERVA+) 1.2 INTERFACE OVERVIEW The printer provides an 8-bit Bi-directional parallel interface and serial interface as standard. Moreover, it is possible to interface to various computers using the optional type-B interface board. This section describes the specifications of the standard interfaces. 1.2.1 Parallel Interface Specifications 1.2.1.1 Forward Channel Transmission mode:...

  • Page 6: Forward Channel

    DLQ-3000 (MINERVA+) Product Description Table 1-1 shows the connector pin assignments and signal functions for the 8-bit parallel interface. Table 1-1. Signal and Connector Pin Assignments for Parallel Interface (Forward Channel) Return Pin No. Signal Name Description GND Pin Strobe pulse. Input data is latched at the falling STROBE edge of this signal.
  • Page 7 00H: Request nibble mode of reverse channel transfer 04H: Request device ID in nibble mode of reverse channel Transfer Device ID: Table 1-2. Transfer ID ESC/P2 IBM 2391 Plus [00H][33H] [00H][34H] MFG:EPSON; MFG:EPSON; CMD:ESCPL2-00; CMD:PRPXL24-01; MDL:DLQ-3000; MDL:DLQ-3000; CLS:PRINTER; CLS:PRINTER; Rev.A...

  • Page 8: Reverse Channel

    DLQ-3000 (MINERVA+) Product Description Table 1-3 shows the connector pin assignments and signal functions for the 8-bit parallel interface. Table 1-3. Signal and Connector Pin Assignments for Parallel Interface (Reverse Channel) Return Pin No. Signal Name Description GND Pin Host Clk Host clock signal.

  • Page 9: Main Components

    Product Description DLQ-3000 (MINERVA+) 1.5 MAIN COMPONENTS The main components of the DLQ-3000 are designed for easy removal and repair. The main components are BOARD ASSY., C124 MAIN-B : control board BOARD ASSY., C124 PSB/PSE : power supply board(100 ~ 120V/220 ~ 240V) C124 SUB board M-5L60 Printer Mechanism Control Panel...

  • Page 10: Connector Summary

    DLQ-3000 (MINERVA+) Service Manual Appendix A.1 CONNECTOR SUMMARY This section describes the component connection and detailed pin assignments of each connector of the units. Figure A-1 shows the component connections of the DLQ-3000, and Table A-1 lists the connector assignments and reference tables. C12 4PSB/PSE C1 24 MAIN -B Printer Mechanism...
  • Page 11 Appendix DLQ-3000 (MINERVA+) Service Manual Table A-2 through appendix lists connector pin assignments. Table A-1. Connector Assignment Connector Board Description CN 1 Printhead drive signal output CN 2 Printhead drive signal output CN 3 CS motor, Color ribbon / film ribbon / CS home sensor CN 4 CR motor, PF motor output CN 5...
  • Page 12 DLQ-3000 (MINERVA+) Service Manual Appendix Table A-2. Connector Pin Assignment - CN7 Name Description (Forward / Reverse) STOBE / Host Data strobe / Host clock signal 2 - 9 DATA 0-7 Parallel data bit 0 to 7 ACKNLG / Acknowledge / Printer clock signal PtrClk BUSY / PtrBusy, Data...
  • Page 13 DLQ-3000 (MINERVA+) Service Manual Appendix COM14 COM14 COM1 0/1 8 COM10/18 COM6/22 COM6/22 COM2 COM2 COM23 COM23 COM3/19 COM3/19 COM7/15 COM7/15 C N 1 COM11 COM11 C N 4 He ad Con n 1 Head conn 1 from mainboard to Hea d 17 HD2 9 HD3 15 HD6...
  • Page 14 Appendix DLQ-3000 (MINERVA+) Service Manual Figure A-5. C124 PSB Board Circuit Diagram A-10 Rev.A...
  • Page 15 DLQ-3000 (MINERVA+) Service Manual Appendix Figure A-6. C124 PSE Board Circuit Diagram Rev.A A-11...
  • Page 16 EPSON...

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