Epson 4001968 - Manual

Epson 4001968

Epson 4001968 – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Table of Contents:

  • Page 2 – NOTICE; The contents of this manual are subjects to change without notice.; Copyright © 1992 by SEIKO EPSON CORPORATION Nagano, Japan
  • Page 3 – PRECAUTIONS; DANGER
  • Page 4 – PREFACE; required to service the equipment.; The contents of this
  • Page 6 – TABLE OF CONTENTS
  • Page 7 – Table of Contents; FEATURES; Main Control Board; List of Figures
  • Page 8 – List of Tables
  • Page 9 – printer cover
  • Page 10 – This section provides detailed statistics for this printer.; i i; Paper feed; Bidirectional printing with logical seeking control; Table 1-1. Print Speed and Printable Columns; Character Pitch
  • Page 11 – STYLUS 800 Service Manual
  • Page 13 – Cut; Printable area; The minimum top margin=; The minimum right margin is:
  • Page 14 – Note: The ink inside the ink cartridge freezes if it kept below
  • Page 15 – = Operating conditions must be in this range.
  • Page 17 – Manual; INTERFACE SPECIFICATION; Table 1-6. Signal and Connector Pin Assignments
  • Page 18 – NC; The direction of the signal is as viewed from the printer.
  • Page 19 – PRINTER OPERATIONS; II; script
  • Page 21 – more than; ON; x 3 t i m e s; . 1 s e c o n d
  • Page 22 – MAIN BOARD Component Layout
  • Page 23 – General Description; BOARD Component Layout
  • Page 25 – OPERATING PRINCIPLES OF THE PRINTER MECHANISM
  • Page 26 – Structure of; P l a t e n
  • Page 27 – OPERATING PRINCIPLES OF THE PRINTER MECHANISM; functional block diagram of the printer mechanism.; CR; Driver circuit; A S F; Figure 2-1. Functional Block Diagram of the
  • Page 29 – Principles; of the Printing Operation; Figure 2-3. Principles of the Printing Operation; cartridge
  • Page 30 – Carriage Drive Mechanism; carriage unit to; Table 2-1. Carriage Drive Motor Specifications; paper thickness used for printing.; Table 2-2. Platen Gap Adjust Lever Position
  • Page 31 – Paper Feed Mechanism; PM-type stepping motor; Table 2-3. Paper Feed Drive Motor Specification
  • Page 32 – Operating Principles; Ink System; This printer’s ink system is composed of the following mechanisms:; Head; Driver
  • Page 33 – position. The figure below shows a block of the pump mechanism.; Paper
  • Page 34 – applied to the ink tube is released.; Pumping
  • Page 35 – Cap Mechanism; The; cap mechanism; nozzle while the printer is not; Slider Valve
  • Page 36 – OPERATING PRINCIPLES OF THE ELECTRICAL CIRCUITRIES; AC Input; Figure 2-11. Block Diagram of the Electrical; Head drive; MAIN; PNL; Voltage; VDC
  • Page 37 – Pcl; Figure 2-12. Power Supply Circuit Block Diagram; of
  • Page 38 – Operating Principles of the Main Control Circuit; driver; QMI; only; Figure 2-13. Main Control Circuit Block Diagram
  • Page 39 – Reset Circuits; Sensor Circuits; INK; Figure 2-15. Sensor Circuit Block Diagram
  • Page 40 – End Detection; according to the output voltage level of the sensor.; the control panel, as described
  • Page 41 – speed; HOLD; CPU; Figure 2-17. Carriage Motor Drive Circuit Block Diagram
  • Page 42 – Paper Feed Motor Drive Circuit; drive; Figure 2-18. Paper Feed Motor Drive Circuit Block Diagram
  • Page 43 – Drive Circuit; Drive Circuit Block Diagram
  • Page 44 – INK SYSTEM MANAGEMENT; Printer mechanism; Operation and
  • Page 47 – R e p l a c e m e n t O p e r a t i o n
  • Page 48 – Micro Absorbing Operation
  • Page 50 – DISASSEMBLY AND ASSEMBLY; Power Supply Unit
  • Page 51 – disassemble or; Precautions for Disassembling the Printer; Refer to the precautions below when disassembling the printer.
  • Page 52 – Follow the instruction in Section; This section consists; the printer in the Appendix, if necessary.; START; Removal
  • Page 53 – Holds the upper case; Panel
  • Page 54 – CBS
  • Page 55 – Main Controller (CI06 MAIN BOARD) Removal
  • Page 56 – PRINTER MECHANISM; Move the carriage to the center of the ptiner.; mechanism, check that the; inserted; into; Removal ‘
  • Page 57 – proper measurement; to protect a; UNIT Removal “
  • Page 58 – Ink Cartridge
  • Page 59 – PUMP UNIT Removal; and the printer mechanism to protect the; of the; Guide Assembly
  • Page 60 – Pump Unit
  • Page 61 – Slit
  • Page 62 – CARRIAGE UNIT Removal; Remove the ground spring plate on the left side.; SHAFT
  • Page 63 – CR MOTOR Removal; [Step 2] Remove the tension spring and take
  • Page 64 – PF MOTOR; screws; Since the holding; removing the holding plate.
  • Page 65 – PAPER FEED ROLLER ASSEMBLY Removal; Remove the PAPER FEED ROLLER ASSEMBLY.; Paper Feed Roller Assembly; Figure 3-14. PAPER FEED ROLLER ASSEMBLY Removal
  • Page 66 – PRINTING ALIGNMENT ADJUSTMENT; List of
  • Page 68 – DEFAULT SETTING PARAMETER REGISTRATION; PAPER GAP ADJUSTMENT; When the; Gap between Carriage and Front Frame; Cw
  • Page 70 – UNIT LEVEL TROUBLESHOOTING; BOARD; Repair of
  • Page 71 – more difficult. This; Figure 5-1. Troubleshooting Process Flowchart
  • Page 72 – . 1 s e c o n d i n t e r v a l
  • Page 73 – defect. The table below; Symptom
  • Page 74 – Printer does not operate at power on; END
  • Page 75 – printer; ND
  • Page 76 – YEs
  • Page 77 – Printer does not feed the paper correctly
  • Page 78 – Control panel operation is abnormal
  • Page 79 – The table; other; values to be checked to evaluate the operation of each component.; Board
  • Page 82 – Repair of Printer Mechanism
  • Page 84 – PREVENTIVE MAINTENANCE
  • Page 85 – MAINTENANCE; or ketone-based solvents for cleaning. These chemicals can; SERVICE MAINTENANCE; Cleaning
  • Page 86 – Type; Oil; Lubrication Point; PF
  • Page 87 – Maintenance
  • Page 88 – Appendix; CONNECTOR SUMMARY
  • Page 89 – A.1 CONNECTOR SUMMARY; Figure below shows the; IIF; Figure A-1. Interconnection of Major Components
  • Page 91 – GP
  • Page 92 – Pin
  • Page 95 – STYLUS; ll; Component Layout
  • Page 96 – C A U T 1 0 N .; Power Supply Board
  • Page 97 – GRN
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EPSON TERM NAL PRINTER

800

SERVICE MANUAL

EPSON

)

4001968

Rev. A

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Summary

Page 2 - NOTICE; The contents of this manual are subjects to change without notice.; Copyright © 1992 by SEIKO EPSON CORPORATION Nagano, Japan

NOTICE All rights reserved. Reproduction of any part of this manual in any form whatsoever without SEIKOEPSON’s express written permission is forbidden. The contents of this manual are subjects to change without notice. All efforts have been made to ensure the accuracy of the contents of this manual...

Page 3 - PRECAUTIONS; DANGER

PRECAUTIONS Precautionary notations throughout the text are categorized relative to 1) personal injury and 2) damage to equipment. DANGER Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by D...

Page 4 - PREFACE; required to service the equipment.; The contents of this

PREFACE This manual describes functions, theory of electrical and mechanical operations, maintenance, and repair of stylus 800.The instructions and procedures included herein are intended for the experience repair technician, and attention should be given to the precautions on the preceding page. Th...

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