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EPSON TERMINAL PRINTER
LQ-2170
SERVICE MANUAL
EPSON
4005735
NOTICE
· · · ·
All right reserved. Reproduction of any part of this manual in any form wharsoever without SEIKO EPSON's express written permission is forbidden. The contents of this manual are subject to change without notice. All efforts 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. The above notwithstanding SEIKO EPSON can assume no responsibility for any errors in this manual or the consequences thereof.
Copyright 1995 by SEIKO EPSON CORPORATION Nagano, Japan
PRECAUTIONS
Precautionary notations throughout the tect are categorized relative to 1) personal injury, and 2) damage to equipment: DANGER Singnals a precaution which, if ignored, could ressult in serious or fatal personal injury, Great caution should be exercised in performing procedures preceded by a DANGER headings. Singnals a precaution which, if ignored, could result in damage to equipment.
WARNING
The precautionary measures itemized below should always be observed when performing repair /maintenance procedures.
DANGER
1. ALWAYS DISCONNECT THE PRODUCT FROM BOTH THE POWER SOURCE AND THE HOST COMPUTER BEFORE PERFORMING ANY MAINTENANCE OR REPAIR PROCEDURE. 2. NO WORK SHOULD BE PERFORMED ON THE UNIT BY PERSONS UNFAMIAR WITH BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS TECHNICIANS IN THEIR LINE OF WORK 3. WHEN PERFORMING TESTING AS DISCATED WITHIN THIS MANUL, DO NOT CONNECT THE UNIT TO A POWER SOURCE UNIT INSTRUCTED TO DO SO. WHEN THE POWER SUPPLY CABLE MUST BE CONNECTED, USE EXTREME CAUTION IN WORKING ON POWER SUPPLY AND OTHER ELECTRONIC COMPONENTS.
WARNING
1. REPAIRS ON EPSON PRODUCT SHOULD BE PERFORMED ONLY BY AN EPSON CERTIFIED REPAIR TECHNICIAN. 2. MAKE CERTAIN THAT THE SOURCE VOLTAGE IS THE SAME AS THE RATED VOLTAGE, LISTED ON THE SERIAL NUMBER/RATIG PLATE. IF THE EPSON PRODUCT HAS A PRIMARY-AC RATING DIFERENT FORM THE AVAILABLE POWER SOURCE, DO NOT CONNECTE IT TO THE POWER SOURCE. 3. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE POWER SOURCE BEFORE REMOVING OR REPLACING PRINTED CIRCUIT BOARDS AND/OR INDDIVIDUAL CHIPS. 4. IN ORDER TO PROTECT SENSITIVE m P CHIPS AND CIRCUITRY, USE STATIC DISCHARGE EQUIPMENT, SUCH AS ANTI-STATIC WRIST STRAPS, WHEN ACCESSING INTERNAL COMPONENTS. 5. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS RECOMMENTED BY THE MAANUFACTURE; INTRODUCTION OF SECOND-SOURCE ICs OR OTHER NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE EPSON WARRANTY.
PREFACE
This manual describes functions, theory of electrical and mechanical operations, maintenance, and repair of the FX-2170. The instructions and procedures included herein are intended for the experienced repair technician, and attention should be given to the precautions on the preceding page. The chapters are organized as follows:
Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6
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Provides a general product overview, Lists specifications, and illustrates the main components of the printer. Describes the theory of printer operation. Includes a step-by-step guide for product disassembly and assembly. Includes a step-by step guide for addjustement. Provides Epson-approved techniques for troubleshooting. Describes prevetive maintenance techniques.
f The contents of this manual are subject to change without notice.
REVISION SHEET
Revision Rev. A Issued Date December 5, 1995 Revision Page 1st issued
TABLE OF CONTENTS
CHAPTER 1. CHAPTER 2. CHAPTER 3. CHAPTER 4. CHAPTER 5. CHAPTER 6. APPENDIX GENERAL DESCRIPTION OPERATION PRINCIPLES DISASSEMBLY AND ASSEMBLY ADJUSTMENTS TROUBLESHOOTING MAINTENANCE
CHAPTER 1
Table of Contents
Product Description
1.1 Specifications 1-1 1.1.1 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.1.2 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 1.2 Hardware Specifications 1-4 1.2.1 Printing Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 1.2.2 Printing Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 1.2.3 Paper Handling Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 1.2.4 Paper Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8 1.2.5 Ribbon Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16 1.2.6 Electrical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16 1.2.7 Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17 1.2.8 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17 1.2.9 Safety Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17 1.2.10 CE Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 1.2.11 Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 1.2.12 Cut Sheet Feeder Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 1.3 Firmware Specifications 1.3.1 Control Codes and Fonts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3.2 Interface Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3.2.1 Parallel Interface (Forward Channel) . . . . . . . . . . . . . . . . . . . . . . 1.3.2.2 Parallel Interface (Reverse Channel) . . . . . . . . . . . . . . . . . . . . . 1.3.2.3 Interface Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3.2.4 Preventing the Host from Data Time-out . . . . . . . . . . . . . . . . . . . 1.3.3 Paper Handling Firmware Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 1.3.4 Paper Width Sensor Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4 Operating Instructions 1.4.1 Control Panel Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.2 Status Codes Indicated by the LEDs and Beeper. . . . . . . . . . . . . . . . . . . 1.4.3 Micro Adjustment Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.4 Tear Off Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.5 Self-test Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.6 Hexadecimal Dump Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.7 Default Setting Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.8 EEPROM Clear Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.4.9 Bidirectional Adjustment Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 Initialization 1.5.1 Software Initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5.2 Operation Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5.3 Power On Initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20 1-20 1-21 1-21 1-23 1-24 1-24 1-25 1-28 1-29 1-29 1-30 1-31 1-31 1-32 1-32 1-33 1-33 1-34 1-34 1-34 1-34 1-34
1.6 MAIN COMPONENTS 1.6.1 C165 MAIN Board Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6.2 C165 PSB/PSE Board Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6.3 C165 PNL Board Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6.4 Printer Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6.5 Housing Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-35 1-36 1-36 1-37 1-37 1-38
List of Figures
Figure 1-1. Exterior View of the LQ-2170 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Figure 1-2. Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Figure 1-3. Printable Area for Cut Sheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 Figure 1-4. Printable Area for Envelopes and Card Stock . . . . . . . . . . . . . . . . 1-11 Figure 1-5. Printable Area for Continuous Paper . . . . . . . . . . . . . . . . . . . . . . . 1-13 Figure 1-6. Label Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14 Figure 1-7. Printable Area for Roll Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15 Figure 1-8. Data Transmission Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22 Figure 1-9. Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29 Figure 1-10. Self-test Printout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32 Figure 1-11. Hexadecimal Dump Printout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32 Figure 1-12. Main Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35 Figure 1-13. C165 MAIN Board Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36 Figure 1-14. C165 PSB/PSE Board Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 1-36 Figure 1-15. C165 PNL Board Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-37 Figure 1-16. Printer Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-37 Figure 1-17. Housing Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-38
List of Tables
Table 1-1. Items Included with the Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Table 1-2. Consumables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Table 1-3. Optional Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Table 1-4. Print Speed and Printable Columns . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 Table 1-5. Print Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 Table 1-6. Paper Path and Paper Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 Table 1-7. Paper Thickness Lever Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 Table 1-8. Specifications for Cut Sheets (Single Sheet, not Multipart) . . . . . . . . 1-8 Table 1-9. Specifications for Cut Sheets (Multipart). . . . . . . . . . . . . . . . . . . . . . . 1-8 Table 1-10. Printable Area for Cut Sheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 Table 1-11. Specifications for Envelopes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10 Table 1-12. Specifications for Card Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10 Table 1-13. Printable Area for Envelopes and Card Stock . . . . . . . . . . . . . . . . 1-11 Table 1-14. Specifications for Continuous Paper (Single Sheet and Multipart ) 1-12 Table 1-15. Printable Area for Continuous Paper . . . . . . . . . . . . . . . . . . . . . . . 1-13 Table 1-16. Specifications for Continuous Paper with Labels . . . . . . . . . . . . . . 1-14 Table 1-17. Specifications for Roll Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15 Table 1-18. Printable Area for Roll Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15 Table 1-19. Ribbon Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16 Table 1-20. Electrical Specifications for 120 V Version . . . . . . . . . . . . . . . . . . . 1-16 Table 1-21. Electrical Specifications for 220/240 V Version . . . . . . . . . . . . . . . 1-16 Table 1-22. Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17 Table 1-23. Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17 Table 1-24. Safety Information for Printer Models . . . . . . . . . . . . . . . . . . . . . . . 1-17 Table 1-25. CE Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 Table 1-26. Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 Table 1-27. Hopper Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 Table 1-28. Stacker Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19 Table 1-29. Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19 Table 1-30. Character Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20 Table 1-31. Pin Assignment of Forward Channel . . . . . . . . . . . . . . . . . . . . . . . 1-21 Table 1-32. Minimum and Maximum Timings for Data Transmission . . . . . . . . 1-22 Table 1-33. Pin Assignments for Reverse Channel . . . . . . . . . . . . . . . . . . . . . . 1-23 Table 1-34. Paper Handling Sequence 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25 Table 1-35. Paper Handling Sequence 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25 Table 1-36. Paper Handling Sequence 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26 Table 1-37. Paper Handling Sequence 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26 Table 1-38. Paper Handling Sequence 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27 Table 1-39. Paper Handling Sequence 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27 Table 1-40. Paper Width Sensor Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28 Table 1-41. Operations in Normal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29 Table 1-42. Operations at Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30 Table 1-43. Operations for Default Setting Mode. . . . . . . . . . . . . . . . . . . . . . . . 1-30 Table 1-44. Indicators and Beeper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30 Table 1-45. EEPROM Initialization Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-33
LQ-2170 Service Manual
Product Description
1.1 Specifications
These specifications provide statistical information for the the LQ-2170 serial impact dot matrix printer.
1.1.1. Features
The LQ-2170 is a 24pin serial impact dot-matrix printer suitable for the VAR (value added reseller) market. The major features of this printer are: Print speed High speed draft Draft LQ 440 characters per second (cps) 330 cps 110 cps at 10 characters per inch (cpi)
Feeding method
Friction feed (front, rear) Push tractor feed (front, rear) Push and pull tractor feed (front, rear) Pull tractor feed (front, rear, bottom) Front push tractor, rear push tractor, CSF bin 1 / bin 2 (optional) Pull tractor (optional) , roll paper i holder (optional) Single sheets, continuous paper, multipart paper, envelopes, card 9 LQ and 1 draft bitmap typefaces 8 barcode fonts Standard version NLSP version 64KB 53 dB (A), ISO 7779 pattern Total print volume 7.5 million lines, except printhead MTBF 6000 power on hours (POH) Printhead life 400 million strokes/wire Ribbon life 8 million characters Bidirectional parallel interface (IEEE-P1284 nibble mode supported) Type B I /F Level 2 (option) ESC/P2 and IBM 2390/2391 plus emulation 1 original + 4 copies Font, Pitch, Pause, Tear off, Bin, LF/FF, Load/Eject, Micro Adjust, Default setting 11 tables 20 tables
Feeder Paper/media labels, roll paper Fonts Character tables Input buffer Acoustic noise Reliability
stock
Interfaces Control codes Copy capability Control panel functions
Refer to Figure 1-1 on the next page for an exterior view of the FX-2170. i Roll paper is not available on all models, and not available in the U.S.
Rev.A
1-1
Product Description
LQ-2170 Service Manual
Figure 1-1 Exterior View of the LQ-2170
1-2
Rev.A
LQ-2170 Service Manual
Product Description
1.1.2. Accessories
· Items included in the printer carton
Table 1-1 Items Included with the Printer
Enclosed Items User's guide Driver diskette Ribbon cartridge Power cord · Consumables Quantity 1 1 1 1
Table 1-2 Consumables
Consumable Item Ribbon cartridge Ribbon pack · Options Part Number S015083 S010031
Table 1-3 Optional Units
Unit High-capacity cut sheet feeder 1 (bin 1) Second bin cut sheet feeder 2 (bin 2) Pull tractor unit Roll paper holder Serial I/F card 32KB intelligent serial I/F card 32KB intelligent parallel I/F card Local Talk I/F card 32KB IEEE-488 I/F card Coax I/F card Twinax I/F card Ethernet I/F card * The number represented by an asterisk varies, depending on the country. Description C80673* C80674* C80032* #8310 C82305* / C82306* C82307* / C82308* C82310* / C82311* C82312* C82313* C82314* C82315* C82331*
Rev.A
1-3
Product Description
LQ-2170 Service Manual
1.2 Hardware Specifications
This section provides detailed hardware specifications for the LQ-2170.
1.2.1 Printing Method
Printing method Color Number of pins Pin arrangement Pin diameter Impact dot matrix Black 24 pins 12 × 2 staggered 0.21 mm (0.00083 inch)
#1 #3 #5 #7 #9 #11 #13 #15 #17 0.847 mm (1/30'')
#2 #4 #6 #8 #10 #12 #14 #16 #18
0.353 mm (1/72'')
2.822 mm (8/72")
Head Center
Figure 1-2. Pin Configuration
f The figure above shows the configuration of pins on the paper.
Print direction
Bidirectional, with logic seeking for text, and unidirectional for graphics. (Bidirectional printing of graphics can be selected with a printer setting or software command.)
1-4
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LQ-2170 Service Manual
Product Description
1.2.2 Printing Specifications
Copy capability Print speed and printable columns 1 original + 4 copies
Table 1-4 Print Speed and Printable Columns
Print Speed (cps) Print Mode Character Pitch Printable Columns Normal High-speed draft 10 cpi 10 cpi Draft 12 cpi 15 cpi Draft condensed 17 cpi 20 cpi 10 cpi NLQ 12 cpi 15 cpi LQ Condensed 17 cpi 20 cpi 136 136 163 204 233 272 136 163 204 233 272 440 330 396 495 283 330 110 132 165 189 220 Multipart 293 220 264 330 189 220 73 88 110 126 147
Resolution
Table 1-5 Print Resolution
Print Mode High-speed draft Draft Draft condensed NLQ 8 pin bit image 24 pin bit image Horizontal Density 90 dpi 120 dpi 240 dpi 360 dpi 60, 80, 90, or 120 dpi 120 or 240 dpi 60, 90, 120, or 180 dpi 360 dpi Raster graphics 180 or 360 dpi Vertical Density Adjacent Dot Printed? 180 dpi 180 dpi 180 dpi 180 dpi 60 dpi 60 dpi 180 dpi 180 dpi 180 or 360 dpi No No No No Yes No Yes No Yes
Acoustic noise
53 dB (A), ISO 7779 pattern
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Product Description
LQ-2170 Service Manual
1.2.3 Paper Handling Specifications
Feeding method Friction feed Push tractor feed Push and pull feed (front, rear) (front, rear) (front, rear, bottom) Pull
Feeder Front push tractor, rear push tractor, CSF bin 1 /bin 2 (optional) tractor (optional) and roll paper holder (optional) Paper path Manual insertion CSF Tractor Front or rear in, top out Rear in, top out Front, rear, or bottom in, top out
Line spacing Feed speed Continuous feed Release lever
1/6 inch or programmable in increments of 1/360 inch. 1/6 inch feed 0.127 m /sec ( 5.0 inches/sec) 45 msec
Set the release lever, using the following table.
Table 1-6 Paper Path and Paper Types
Paper Types Lever Position Paper Entrance Single Sheet Front insertion Rear insertion Friction CSF bin 1 CSF bin 2 Roll paper holder Front tractor Rear tractor Full release f Push Push-pull Push Push-pull Pull (front bottom) Pull (rear) OK OK OK OK NO OK OK OK OK OK OK Labels NO NO NO NO NO OK f OK f OK f OK f OK OK f Card Stock / Envelopes OK f OK OK NO NO NO NO NO NO NO NO Multipart OK OK OK NO NO OK OK OK OK OK OK Roll Paper NO NO NO NO OK NO NO NO NO NO NO path.
This symbol after "OK" means you need to check the paper type before using it with this paper
1-6
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LQ-2170 Service Manual
Paper thickness lever
Product Description
Set the paper thickness lever to the appropriate position, as indicated in the following table.
Table 1-7 Paper Thickness Lever Positions
Paper Thickness ( inches) Lever Position Minimum 0 1 2 3 4 5 6 0.0024 0.0047 0.0075 0.0102 0.0126 0.0142 0.0157 Maximum 0.0043 0.0067 0.0098 0.0122 0.0138 0.0154 0.0205 Minimum 0.06 0.12 0.19 0.26 0.32 0.36 0.40 Maximum 0.11 0.18 0.25 0.31 0.35 0.39 0.52 Paper Thickness (mm)
---------------- Precautions for Handling Paper ---------------- 1. Friction feed Set the release lever to the FRICTION position and install the paper eject assembly Load paper from the front or top entrance. not use continuous paper. perform any reverse paper feeds within the top 8.5 mm (0.33 inch) and bottom 22 mm (0.87 inch) area. Do not perform reverse feeds greater than 1/6 inch after the paper end has been detected. Use the paper-tension unit. Insert the multipart cut sheet forms only from the front. Do Do not
2. Push tractor feed Set the release lever to the REAR PUSH/FRONT PUSH position and install the paper eject assembly. Load paper from the rear or front entrance. Release the friction feed mechanism. Multipart paper must be carbonless. the paper-tension unit. perform reverse feeds greater than 1/6 inch. perform reverse feeds after the paper end has been detected, because accuracy of paper feeding cannot be assured.
Use Do not Do not
3. Pull tractor feed Set the release lever to the PULL position. Load paper from the front, rear, or bottom entrance. front or bottom entrance is recommended for thick paper or labels.) Remove the paper eject assembly and attach the pull tractor unit. Insert paper from either from the front or bottom. Multipart paper must be carbonless. not perform reverse feeds. (The
Do
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Product Description
4. Push-pull tractor feed Set the release lever to the REAR PUSH/FRONT PUSH position. Load paper from the front or rear entrance. the paper eject assembly and attach the pull tractor unit. any slack in the paper between the platen and pull tractor. horizontal position of the pull tractor and push tractor. carbonless. greater than 1/6 inch. after the paper end has been detected.
LQ-2170 Service Manual
Remove Remove Precisely adjust the Multipart paper must be Do not perform reverse feeds Do not perform reverse feeds
1.2.4 Paper Specifications
This section describes the printable area and types of paper that can be used in this printer.
Cut Sheets
Paper/ media specifications The following table shows specifications for cut sheets.
Table 1-8 Specifications for Cut Sheets (Single Sheet, Not Multipart)
Front Entry Minimum Width Length Thickness Weight Quality 101 mm (4.0") 147 mm (5.8") 0.065 mm(0.0025") 52.3 g/m2 (14 lb) Maximum 420 mm (16.5") 420 mm (16.5") 0.14 mm (0.0055") 90 g/m2 (24 lb) Minimum 101 mm (4.0") 101 mm (4.0") 0.065 mm(0.0025") 52.3 g/m2 (14 lb) Rear Entry Maximum 420 mm (16.5") 420 mm (16.5") 0.14 mm (0.0055") 90 g/m2 (24 lb)
Plain paper, recycled paper. Not curled, folded, or crumpled.
Plain paper, recycled paper. Not curled, folded, or crumpled.
Table 1-9 Specifications for Cut Sheets (Multipart)
Front Entry Minimum Width Length Copies Total thickness Weight f Quality Binding 101 mm (4.0") 147 mm (5.8") Maximum 420 mm (16.5") 420 mm (16.5") Minimum 101 mm (4.0") 101 mm(4.0") Rear Entry Maximum 420 mm (16.5") 420 mm (16.5")
1 original + 4 copies 0.12 mm (0.0047") 40 g/m2 (12 lb) 0.39 mm (0.015") 58 g/m2 (15 lb)
1 original + 4 copies 0.12 mm (0.0047") 40 g/m2 (12 lb) 0.39 mm (0.015") 58 g/m2 (15 lb)
Plain paper, recycled paper. Not curled, folded, or crumpled. A line of glue at the top or one side of the form.
Plain paper, recycled paper. Not curled, folded, or crumpled. A line of glue at the top of the form.
f This weight is for one sheet of the multipart form.
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Printable area
Product Description
Figure 1-3 shows the printable area for cut sheets. The table below defines the abbreviations used in the figure.
Table 1-10 Printable Area for Cut Sheets
Abbreviations PW (width) PL (length) LM (left margin) Single Sheet Refer to Table 1-8. Refer to Table 1-8. 3 mm (0.12") or more (PW 364 mm (14.33")) 25 mm (0.98") or more (PW = 420 mm (16.5")) 3 mm or more (PW 364 mm (14.33")) 25 mm (0.98") or more (PW = 420 mm (16.5")) 4.2 mm (0.17") or more 4.2 mm (0.17") or more Multipart Refer to Table 1-9. Refer to Table 1-9. 3 mm (0.12") or more (PW 364 mm (14.33")) 25 mm (0.98") or more (PW = 420 mm (16.5")) 3 mm or more (PW 364 mm (14.33")) 25 mm (0.98") or more (PW = 420 mm (16.5")) 4.2 mm (0.17") or more 4.2 mm (0.17") or more
RM (right margin)
TM (top margin) BM (bottom margin)
PW LM
RM
TM
Printable area
PL
BM
Figure 1-3 Printable Area for Cut Sheets
Rev.A 1-9
Product Description
LQ-2170 Service Manual
Envelopes and Card Stock
Paper/media specifications The following tables gives specifications for envelopes and card stock.
Table 1-11 Specifications for Envelopes
Front Entry Minimum No. 6 envelopes No. 10 envelopes Total thickness Width Length Width Length ---- ---- Weight Quality ---- ---- ---- Maximum Minimum Rear Entry Maximum
------------
166 mm (6.5") 92 mm (3.6") 240 mm (9.5") 104 mm (4.1") 0.16 mm (0.0063") 0.52 mm (0.020")
Differences in thickness in the printable area must be within 0.25 mm (0.0098"). 45 g/m2 (12 lb) 91 g/m2 (24 lb)
Bond paper, plain paper, or airmail. No glue at the flap. Not curled, folded, or crumpled.
f Printing on envelopes is available only at normal temperatures and humidity. f Insert envelopes from the rear entrance only. f Insert the longer side of the envelope horizontally.
Table 1-12 Specifications for Card Stock
Front Entry Minimum Width Length Thickness Weight Quality 105 mm (4.13") 148 mm (5.83") Maximum 148 mm (5.83") 148 mm (5.83") Rear Entry Minimum 105 mm (4.13") 105 mm (4.13") Maximum 148 mm (5.83") 148 mm (5.83")
0.22 mm (0.0087") 192 g/m2 (51 lb) Plain paper, recycled paper. Not curled, folded, or crumpled.
0.22 mm (0.0087") 192 g/m2 (51 lb) Plain paper, recycled paper. Not curled, folded, or crumpled.
f Printing on card stock is available only at normal temperatures and humidity. f When the longer side of an A6 card is to be inserted horizontally, insert it from the rear entrance.
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Printable area
Product Description
The figure below shows the printable area for envelopes and card stock. Each abbreviation is defined in the following table.
Table 1-13 Printable Area for Envelopes and Card Stock
Abbreviations PW (width) PL (length) LM (left margin) RM (right margin) TM (top margin) BM (bottom margin) Envelopes Refer to Table 1-11. Refer to Table 1-11. 3 mm (0.12") or more 3 mm (0.12") or more 4.2 mm (0.17") or more 4.2 mm (0.17") or more Card Stock Refer to Table 1-12. Refer to Table 1-12. 3 mm (0.12") or more 3 mm (0.12") or more 4.2 mm (0.17") or more 4.2 mm (0.17") or more
PW
LM RM
TM
PL
Printable area
BM
PW LM RM TM
Printable area
PL
BM
Figure 1-4 Printable Area for Envelopes and Card Stock
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LQ-2170 Service Manual
Continuous Paper
Paper/media specifications The following table gives specifications continuous paper.
Table 1-14 Specifications for Continuous Paper (Single Sheet and Multipart)
Front Entry Minimum Width Length Copies Total thickness Weight (not multipart) Weight (one sheet of a multipart form) Types of paper 101 mm (4.0") 101 mm (4.0") Maximum 406 mm (16") 559 mm (22") Rear Entry Minimum 101 mm (4.0") 101 mm (4.0") Maximum 406 mm (16") 559 mm (22") Bottom Entry Minimum 101 mm (4.0") 101 mm (4.0") Maximum 406 mm (16") 559 mm (22")
1 original + 4 copies 0.065 mm (0.0025") 52.3 g/m2 (14 lb) 40 g/m2 (12 lb) 0.39 mm (0.015") 82 g/m2 (22 lb) 58 g/m2 (15 lb)
1 original + 4 copies 0.065 mm (0.0025") 52.3 g/m2 (14 lb) 40 g/m2 (12 lb) 0.39 mm (0.015") 82 g/m2 (22 lb) 58 g/m2 (15 lb)
1 original + 4 copies 0.065 mm (0.0025") 52.3 g/m2 (14 lb) 40 g/m2 (12 lb) 0.39 mm (0.015") 82 g/m2 (22 lb) 58 g/m2 (15 lb)
Plain paper. Recycled paper. Carbonless multipart. Dots of glue or paper staples (both sides).
Plain paper. Recycled paper. Carbonless multipart. Dots of glue or paper staples (both sides).
Plain paper. Recycled paper. Carbonless multipart. Dots of glue or paper staples (both sides).
Binding
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Printable area
Product Description
The figure below shows the printable area for continuous paper. Each abbreviation is defined in the following table.
Table 1- 15 Printable Area for Continuous Paper
Abbreviations PW (width) PL (length) LM (left margin) RM (right margin) TM (top margin) BM (bottom margin) Continuous Paper Refer to Table 1-14. Refer to Table 1-14. 13 mm (0.51") or more 13 mm (0.51") or more 4.2 mm (0.17") or more 4.2 mm (0.17") or more
PW LM RM
TM
Printable area
PL
BM
Figure 1-5 Printable Area for Continuous Paper
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LQ-2170 Service Manual
Continuous Paper with Labels
Paper/media specifications The following table gives the specifications for continuous paper with labels.
Table 1-16 Specifications for Continuous Paper with Labels
Front Entry Minimum Label size Base sheet width Base sheet length (one page) Base sheet thickness Total thickness Label weight Quality Maximum Rear Entry Minimum Maximum Bottom Entry Minimum Maximum
See the figure below 101 mm (4.0") 101 mm (4.0") 0.07 mm (0,0028") 0.16 mm (0.0063") 406 mm (16") 559 mm (22") 0.09 mm (0.00352) 0.19 mm (0.0075") ---------
-------------
See the figure below 101 mm (4.0") 101 mm (4.0") 0.16 mm (0.0063") 0.16 mm (0.0063") 406 mm (16") 559 mm (22") 0.19 mm (0.0075") 0.19 mm (0.0075")
68 g/m2 (17 lb) Avery continuous form labels Avery mini-line or equivalent quality labels
68 g/m2 (17 lb) Avery continuous form labels Avery mini-line or equivalent quality labels
---
f Printing on labels is available only at normal temperatures and humidity. f The base sheet for the labels must be continuous paper. f Continuous paper with labels should be inserted from the front or bottom entrance.
2.5inch (63.5mm) min.
15/16inch (23.8mm) min.
Label
R0.1inch (2.5mm) min.
Figure 1-6 Label Size
Printable size and area
The figure above is the printable size for the labels. The printable area for the base sheet containing the labels depends on conditions in Figure 1-5 and Table 1-15.
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Product Description
Roll Paper
Note: Roll paper is not available in all models, and not available in the U.S. The following table shows specifications for roll paper.
Paper/media specifications
Table 1-17 Specifications for Roll Paper
Front Entry Minimum Width Length Thickness Weight Quality ---- ---- ---- ---- ---- ---- ---- Maximum Minimum Rear Entry Maximum
216 mm (8.5") ---- 0.07 mm (0.0028") 52.3 g/m2 (14 lb) 0.09 mm (0.0035") 82 g/m2 (22 lb)
Plain paper, recycled paper. Not curled, folded, or crumpled. Figure 1-7 gives the printable area for roll paper. Each abbreviation is defined in the following table.
Printable area
Table 1-18 Printable Area for Roll Paper
Abbreviations PW (width) PL (length) LM RM TM BM
PW LM TM
Roll Paper See Table 1-17. See Table 1-17. 3 mm (0.12") or more 3 mm (0.12") or more 4.2 mm (0.17") or more 4.2 mm (0.17") or more
Printable area
PL
BM
Figure 1-7 Printable Area for Roll Paper
Rev.A 1-15
Product Description
LQ-2170 Service Manual
1.2.5 Ribbon Specifications Table 1-19 Statistics on the Ribbon
Item Type Color Ribbon life Dimension Fabric Black 8 million characters (draft, 10 cpi, 48 dots/ character) 506.0 mm (W) × 123.5 mm (D) × 23.0 mm (H) 19.92" (W) x 4.86" (D) x .91" (H) Specification
1.2.6 Electrical Specifications
Tables 1-20 and 1-21 provide statistics on electrical ratings and consumption.
Table 1-20 Electrical Specifications for the 120 V Version
Item Rated voltage Input voltage range Rated frequency range Input frequency range Rated current Power consumption Insulation resistance Dielectric strength 120 VAC 103.5 to 132 VAC 50 to 60 Hz 49.5 to 60.5 Hz 1.0 A (max. 2.6 A) Approx. 62 W (self-test in draft mode at 10 cpi) 10 M min. (between AC line and chassis, 500 VDC) 1000 VAC rms. 1 min. or 1200 VAC rms. 1 sec. (between AC line and chassis) Specifications
Table 1-21 Electrical Specifications for the 220/240 V Version
Item Rated voltage Input voltage range Rated frequency range Input frequency range Rated current Power consumption Insulation resistance Dielectric strength 220 to 240 VAC 198 to 264 VAC 50 to 60 Hz 49.5 to 60.5 Hz 0.5 A (maximum 1.3 A) Approx. 62 W (self-test in draft mode at 10 cpi) 10 M min. (between AC line and chassis, 500 VDC) 1500 VAC rms. 1 min. (between AC line and chassis) Specifications
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Product Description
1.2.7 Environmental Conditions
Table 1-22 explains the conditions the printer requires during operation and when not operating.
Table 1-22 Environmental Requirements
Item Temperature Specifications 5 to 35° C/41 to 95° F ( operating f 1) 15 to 25° C/59 to 77° F (operating f 1, f 2) ä30 to 60° C/22 to 140° F (non-operating) 10 to 80 % RH (operating f 1) 30 to 60 % RH (operating f 1, f 2) 0 to 85 % RH (non-operating f 1) 1 G, within 1 ms (operating) 2 G, within 2 ms (non-operating f 3) 0.25 G, 10 to 55 Hz (operating ) 0.50 G, 10 to 55 Hz (non-operating f 3)
Humidity
Resistance to shock Resistance to vibration
f 1: Without condensation. f 2: During printing on multipart paper, envelopes, card stock, or labels. f 3: In shipment container.
1.2.8 Reliability
Table 1-23 gives maximum life and usage specifications.
Table 1-23 Reliability Statistics
Item Total print volume MTBF Printhead life Ribbon life Specification 7.5 million lines (except printhead) 6000 power on hours (POH) 400 million strokes / wire 8 million characters
1.2.9 Safety Approvals
Table 1-24 provides information about the safety approvals the printer has met.
Table 1-24 Safety Information for Printer Models
120 V Safety Standards EMI UL1950 with D3 CSA C22.2 No,950 with D3 FCC part 15 subpart B class B CSA C108.8 230 V EN60950 (TüV. SEMKO, DEMKO, NEMKO, FIMKO ) EN55022 (CISPR pub.22) class B
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Product Description
LQ-2170 Service Manual
1.2.10 CE Marking
The following table lists CE marking information.
Table 1-25 CE Marking
Low Voltage Directive 73/23 / EEC EMC Directive 89/336 / EEC EN60950 EN55022 class B EN50082-1 , IEC801-2 IEC801-3 , IEC801-4 EN45501
Non-Automatic Weighing Instruments Directive 90/384/EEC
1.2.11 Physical Specifications
Table 1-26 provides printer dimensions and weight.
Table 1-26 Physical Specifications
Dimensions Weight 639 mm (W) × 410 mm (D) × 257 mm (H) 25.16" (W) x 16.14" (D) x 10.12" (H) Approx. 13 kg (28.66 lb)
1.2.12 Cut Sheet Feeder Specifications
This printer has two CSF options: a high-capacity CSF and a 2nd bin CSF. The high-capacity CSF has special a paper-feed motor to load the paper quickly. The 2nd bin CSF can be connected to the high-capacity CSF to allow them to be used as a double bin CSF. The following table provides the specifications for these CSF options. Hopper capacity
Table 1-27 Hopper Capacity
CSF Bin 1 Single sheets Envelopes Card stock Multipart paper 150 sheets (f 1) / 110 sheets (f 2) 185 sheets (f 3) / 135 sheets (f 4) 25 sheets (f 5) 30 sheets (f 6) 50 sheets (f 7) 40 sheets (f 8) CSF Bin 2 50 sheets (f 1) / 50 sheets (f 2) 60 sheets (f 3) / 60 sheets (f 4) -------
f 1 : Plain paper (weight: 82 g/m2 , 22 lb) or recycled paper, except for A3-size paper. f 2 : Plain paper (weight: 82 g/m2 , 22 lb) or recycled paper, A3 paper. f 3 : Plain paper (weight: 64 g/m2 , 17 lb) , except for A3 paper. f 4 : Plain paper (weight: 64 g/m2 , 17 lb), A3 paper. f 5 : Envelopes (weight: 91 g/m2, 24 lb) f 6 : Envelopes (weight: 45 g/m2, 12 lb) f 7 : Card stock (weight: 192 g/m2, 51 lb; thickness: 0.22 mm, 0.0087") f 8 : 1 original + 5 copies (thickness: 0.36 mm, 0.0142")
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Stacker capacity
Product Description
Table 1-28 Capacity of the Stacker
CSF Bin 1 Single sheets Envelopes Card stock Multipart f 1: f 2: f 3: f 4: f 5: f 6: 140 sheets (f 1) 100 sheets (f 2) 15 sheets (f 3) 28 sheets (f 4) 30 sheets (f 5) 36 sheets (f 6) CSF Bin 2 -----------------
Single sheets (weight: 82 g/m2, 22 lb), except for A3 paper Single sheets (weight: 82 g/m2, 22 lb), A3 paper Envelopes (weight: 91 g/m2, 24 lb) Envelopes (weight: 45 g/m2, 12 lb) Card stock (weight : 192 g/m2, 51 lb; thickness: 0.22 mm, 0.0087") 1 original + 5 copies (thickness: 0.36 mm, 0.0142")
Reliability MCBF: 2 × 105 cycles
Environmental conditions
Table 1-29 Environmental Conditions
Operating Temperature Humidity 5 to 35° C (41 to 95° F) 15 to 80% RH (f 1, f 3) 30 to 605 RH (f 2, f 4) Non Operating 30 to 60° C (22 to 140° F) 5 to 85% RH (f 3)
f 1: Single sheets (plain, 64 g/m2 < weight < 82 g/m2 ;/17 lb < weight < 22 lb) f 2: Single sheets (plain, weight < 64 g/m2 , 82 g/m2 < weight/weight < 17 lb, 22 lb < weight) Single sheets (recycled), multipart, envelopes, and card stock f 3: Without condensation
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Product Description
LQ-2170 Service Manual
1.3 Firmware Specifications
This section provides detailed information about LQ-2170 firmware.
1.3.1 Control Codes and Fonts
Control codes ESC/P2 and IBM 2390/2391 plus emulations.
Typefaces
Bitmap fonts EPSON Draft EPSON Roman EPSON Sans Serif EPSON Courier EPSON Prestige EPSON Script EPSON OCR-B EPSON Orator EPSON Orator-S EPSON Script C Scalable font EPSON Roman EPSON Sans Serif EPSON Roman T EPSON Sans Serif H 10.5pt., 8pt.~32pt. (every 2 pt.) 10.5pt., 8pt.~32pt. (every 2pt.) 10.5pt., 8pt.~32pt. (every 2pt.) 10.5pt., 8pt.~32pt. (every 2pt.) 10 cpi, 12 cpi, 15 cpi 10 cpi, 12 cpi, 15 cpi, proportional 10 cpi, 12 cpi, 15 cpi, proportional 10 cpi, 12 cpi, 15 cpi, 10 cpi, 12 cpi 10 cpi 10 cpi 10 cpi 10 cpi Proportional
Bar code fonts EAN-13, EAN-8, Interleaved 2 of 5, UPC-A, UPC-E, Code 39 Code 128, POSTNET
International character sets
13 countries U.S.A., France, Germany, U.K., Denmark 1, Sweden, Italy, Spain 1, Japan, Norway, Denmark2, Spain2, Latin America
Character tables
The standard version has 11 character tables and the NLSP version has 20 character tables, as shown in the following table.
Table 1-30 Character Tables
Version
Italic
Standard Version
Character Tables PC-437 (U.S., Standard Eur.) PC-861 (Icelandic) Abicomp ISO Latin 1
PC- 437 (US, Standard Eur.)
PC-850 (Multilingual)
PC- 863 (Canadian-French)
PC-860 (Portuguese) PC-865 (Nordic) Roman 8 Italic PC-437 Greek PC-855 (Cyrillic)
BRASCII
PC-850 (Multilingual) PC-853 (Turkish) PC-866 (Russian) Code MJK (CSFR) Bulgaria (Bulgarian) ISO Latin 2
PC-852 (East Europe) PC-857 (Turkish) MAZOWAI (Poland) ISO Latin 1T (Turkish) PC-744(LST 1283:1993) PC-864 (Arabic)
NLSP Version
PC-869 (Greek) ISO 8859-7 (Latin/Greek) Estonia (Estonia) PC-866 LAT (Latvia)
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Product Description
1.3.2 Interface Specifications
This printer provides a bidirectional 8-bit parallel interface and a Type B optional interface slot, standard.
1.3.2.1 Parallel Interface (Forward Channel)
Transmission mode Adaptable connector Synchronization Handshaking Signal level 8-bit parallel, IEEE-P1284, compatibility mode 57-30360 (Amphenol) or equivalent STROBE pulse BUSY and ACKNLG signals TTL compatible (IEEE-P1284 level 1 device)
Table 1-31 Pin Assignments for Forward Channel
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 31 32 36 18 35 17 16, 33, 19-30 15, 34 Signal Name STROBE DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA7 DATA8 ACKNLG Return GND pin 19 20 21 22 23 24 25 26 27 28 29 28 28 30 30 29 30 ---- ---- ---- ---- ---- In /Out In In In In In In In In In Out Out Out Out In In Out In Out Out ---- ---- ---- Function Description Strobe pulse. Input data is latched at falling edge of the signal Parallel input data to the printer bit 0: LSB bit 1 bit 2 bit 3 bit 4 bit 5 bit 6 bit 7: MSB This signal (negative pulse) indicates the printer has received data and is ready to accept more data. This signal's HIGH level means the printer is not ready to accept data. This signal's HIGH level means the printer has a paper-out error. Always HIGH when the printer is powered on. Not used. This signal's negative pulse initializes printer. This signal's LOW level means the printer is in an error state. Not used. This line is pulled up to + 5 V through 3.3K resistor. This line is pulled up to +5 V through 3.3K resistor. Chassis GND. Signal GND. Not connected.
BUSY PE SLCT AFXT INIT ERROR SLIN Logic H +5V Chassis GND NC
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DATA
LQ-2170 Service Manual
data byte n data byte n+1
STROBE
tsetup
t h old
tstb
tnext
BUSY
tready
tb u s y
ACKNLG
trep ly
tack
tn b u s y
Figure 1-8 Data Transmission Timing
Table 1-32 Maximum and Minimum Timings for Data Transmission
Parameter setup thold t stb tready tbusy treply tack tnbusy tnext ttout ttin Minimum 500 nsec 500 nsec 500 nsec 0 ---- ---- 500 nsec 0 0 ---- ---- Maximum ----------------500 nsec ----10 µs --------120 nsec 200 nsec
Ì The BUSY signal is active (HIGH level) under the conditions below: Ì Ì Ì Ì Ì Ì Ì During data receipt. If the input buffer is full. If the INIT signal is active (LOW level). During hardware initialization. In self-test mode. In adjustment mode. In default-setting mode.
Ì The ERROR signal is active (LOW level) under the conditions below: Ì Ì Ì If there is a fatal error. If there is a paper-out error. If the cover is open (cover open error).
PE signal is active (HIGH level) under the conditions below: Ì If there is a paper-out error.
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Product Description
1.3.2.2 Parallel Interface (Reverse Channel)
Transmission mode Adaptable connector Synchronization Handshaking Signal level Data transmission timing IEEE-P1284 nibble mode 57-30360 (Amphenol) or equivalent Refer to the IEEE-P1284 Specification Refer to the IEEE-P1284 Specification TTL-compatible (IEEE-P1284 level 1 device) Refer to the specification
Table 1-33 Pin Assignments for Reverse Channel
Pin No, 1 2 3 4 5 6 7 8 9 10 11 12 13 14 31 32 36 18 35 17 16, 33, 19-30 15, 34 Signal Name HostClk DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA7 DATA8 PtrClk PtrBusy / DataBit-3, 7 AckDataReq/ DataBit-2, 6 Xflag / DataBit-1, 5 HostBusy INIT DataAvail / DataBit-0, 4 1284-Active Logic H +5 V Chassis GND NC Return GND In /Out Pin 19 20 21 22 23 24 25 26 27 28 29 28 28 30 30 29 30 ---- ---- ---- ---- ---- In In In In In In In In In Out Out Out Out In In Out In Out Out ---- ---- ---- Printer clock signal. Printer busy signal and reverse channel transfer of data bits 3 or 7 Acknowledge data request signal and reverse channel transfer of data bits 2 or 6 X-flag signal and reverse channel transfer of data bits 1 or 5 Host busy signal. Not used. Data available signal and reverse channel transfer of data bits 0 or 4 1284 active signal. This line is pulled up to + 5 V through 3.3K resistor. This line is pulled up to +5 V through 3.3K resistor. Chassis GND. Signal GND. Not connected. Function Description Host clock signal. Parallel input data to the printer bit 0: LSB bit 1 bit 2 bit 3 bit 4 bit 5 bit 6 bit 7: MSB
Rev.A
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Product Description
· Extensibility request
LQ-2170 Service Manual
The printer responds to the extensibility request in the affirmative, when the request is 00 H or 04 H, which means: 00 H 04 H Request nibble mode of reverse channel transfer. Request device ID in nibble mode of reverse channel transfer.
· Device ID ESC/P2 IBM 2391 Plus
Refer to the following descriptions: [00 H][32 H] ...... MFG: EPSON, CMD: ESCPL2-00, MDL: LQ-2170, CLS: PRINTER [00 H][33 H] ..... . MGF: EPSON, CMD: PRPXL24-01, MDL: LQ-2170, CLS: PRINTER
1.3.2.3 Interface Selection
The printer has 2 interfaces: the parallel interface and Type B optional interface. These interfaces are selected manually in default setting mode or selected automatically. Manual selection One of 2 interfaces can be selected in default setting mode.
Automatic selection Automatic interface is enabled in default setting mode. In automatic interface mode, the printer is initialized to the idle state, where it scans which interface is to be activated. The interface that receives data first is selected. When the host stops data transfer, and the printer is in standby for a number of seconds specified in default setting mode, the printer returns to the idle state. As long as the host sends data or the printer interface is busy, the selected interface remains active.
Interface state and interface selection When the parallel interface is not selected, that interface goes into a busy state. When the Type B serial interface card is installed and it is not selected, the interface sends an XOFF code and sets the DTR signal to MARK. When the optional interface is not selected, the printer sends disable commands to the optional interface. When the printer is initialized or returned to the idle state, the parallel interface goes into the ready state, the serial interface sends an XON code and sets the DTR signal to SPACE, and the printer sends an enable command to the optional interface. Remember that interrupt signals, such as the INIT signal on the parallel interface, are not effective unless that interface is selected.
1.3.2.4 Prevention Hosts from Data Transfer Time-out
Generally, hosts abandon data transfer to peripherals when the peripheral is in the busy state for dozens of seconds continuously. To prevent hosts from this kind of time-out, the printer receives data very slowly, several bytes per minute, even if the printer is in the busy state. This slowdown is started when the rest of the input buffer becomes several hundreds of bytes. Finally, when the input buffer is full, the printer is in busy continuously.
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Product Description
1.3.3 Paper Handling Sequence
In this section, paper handling firmware sequences are described in several cases. · Printer status
Printer is on line (not in the pause state). No PE sensor detects that paper is loaded. The release lever position is set to continuous paper.
Table 1-34 Paper Handling Sequence 1
Occurrence Print command sent
Pause button pressed LF/FF button pressed Load/Eject button pressed Micro Adjust button pressed Micro Adjust button pressed
Result Continuous paper is loaded. Printer enters pause state. Continuous paper is loaded. Continuous paper is loaded. No operation. No operation. The paper path is changed for cut sheets.
Release lever set to Friction
· Printer status
The rear PE sensor detects that paper is loaded in the rear paper path. The release lever is set to continuous paper.
Table 1-35 Paper Handling Sequence 2
Occurrence
Pause button pressed LF/FF button pressed LF/FF button held down continuously Load / Eject button pressed Load /Eject button pressed and paper
Result The printer goes off or on line. The printer performs a line feed. The printer performs a form feed after the line feed. Paper is ejected to the rear paper park position. Paper is advanced to the next TOF position. The printer micro feeds paper forward. The printer micro feeds paper backward. The beeper sounds. The beeper sounds.
advanced to skip area
Micro Adjust button pressed Micro Adjust button pressed
Release lever set to Friction Front paper end sensor detects that paper is loaded in the front paper path.
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· Printer status
LQ-2170 Service Manual
The front PE sensor detects that paper is loaded in the front paper path. The release lever is set to continuous paper
Table 1-36 Paper Handling Sequence 3
Occurrence
PAUSE button pressed LF/FF button pressed LF/FF button held down continuously Load / Eject button pressed Load /Eject button pressed and the paper was
Result Printer goes off or on line. Printer performs a line feed. The printer performs a form feed after the line feed. Paper is ejected to the front paper park position Paper is advanced to the next TOF position. The printer micro feeds paper forward. The printer micro feeds paper backward. The beeper sounds. The beeper sounds.
advanced to skip area
Micro Adjust button pressed Micro Adjust button pressed
Release lever was set to Friction Front paper end sensor detects that paper was loaded in the rear paper path.
· Printer status
Printer is on line ( not in the pause state). No PE sensor detects that paper is loaded. ( The printer is set to CSF .) The release lever is set to the Friction.
Table 1-37 Paper Handling Sequence 4
Occurrence Print command sent
Pause button pressed LF/FF button pressed Load / Eject button pressed Micro Adjust button pressed Micro Adjust button pressed
Result The paper is loaded from the CSF. Printer goes off line. Paper is loaded from the CSF. Paper is loaded from the CSF. No operation. No operation. The paper path is changed to tractor. The printer feeds paper.
Release lever set to tractor position Rear/ Front paper end sensor detects that paper is loaded in the rear or front paper path. And, 3 seconds have passed. Rear/ Front paper end sensor detects that paper is loaded in the rear or front paper path. And, Pause, LF/FF, or LOAD/EJECT button was pressed.
Ignored.
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· Printer status
Product Description
The rear PE sensor detects that paper is loaded in the rear paper path. Release lever position is set to Friction.
Table 1-38 Paper Handling Sequence 5
Occurrence
Pause button pressed LF/FF button pressed
Result Printer goes on or off line. Printer performs a line feed. Printer ejects paper forward after the line feed (except with roll paper). The printer performs a form feed after the line feed (roll paper).
Paper is ejected forward (except with roll paper). The printer performs a form feed (roll paper). Paper is ejected forward (except with roll paper). The printer performs a form feed (roll paper). The printer micro feeds paper forward. The printer micro feeds paper backward.
LF/FF button held down continuously
LF / FF button pressed, and paper is advanced
over the logical paper length.
Load /Eject button pressed Micro Adjust button pressed Micro Adjust button pressed
Release lever set to the tractor position Front paper end sensor detects that paper was loaded in the rear paper path.
The beeper sounds. The beeper sounds.
· Printer status
Front PE sensor detects that paper is loaded in the rear paper path The release lever position is set to Friction.
Table 1-39 Paper Handling Sequence 6
Trigger
Pause button pressed LF/FF button pressed LF/FF button held down continuously LF / FF button pressed, and paper advanced
Result Printer goes on or off line. Printer performs a line feed. Paper is ejected forward after the line feed. The paper is ejected forward. The paper is ejected forward. The printer micro feeds paper forward. The printer micro feeds paper backward. The beeper sounds. The beeper sounds.
more than the logical paper length.
Load /Eject button pressed Micro Adjust button pressed Micro Adjust button pressed
Release lever set to tractor position Front paper end sensor detects that paper was loaded on the rear paper path.
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1.3.4. Paper Width (PW) Sensor Operation
The PW sensor is mounted on the ribbon mask holder to measure the paper width and detect the top edge of the paper. However, in cases where print data is over the paper width, the image cut function does not operate in all modes. This section describes when the image cut function is operational, as shown in the following table.
Table 1-40 PW Sensor Operation
Paper Path Friction Push Tractor (Rear / Front) Pull Tractor f 1: Paper Width Measurement Measured Measured Measured Image Cut Function Executed (Only Copy Mode 2) Not Executed f 1 Not Executed f 1
The measured paper width value is used to estimate the printhead centering position. When narrow continuous paper (fewer than 30 columns) is loaded, the printer changes the centering position to the proper position, based on the measured paper width.
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1.4 Operating Instructions
This section provides detailed information about the LQ-2170 control panel buttons and LEDs.
1.4.1 Control Panel Operations
The printer control panel contains 6 non-lock type push buttons and 10 LEDs for various printer functions. The exterior view of the control panel is shown in the following figure.
Font Pitch Tear Off / Bin Pause Paper Out Operate
Micro Adjust
3 sec
LF/ FF Font Draft Roman
Sans Serif
Load / Eject
Pitch
10 cpi 12 cpi 15 cpi 17 cpi 20 cpi PS
Tear Off / Bin
Tear Off Bin 1 Bin 2 Card
LED Off LED On LED Blinks
Figure 1-9 Control Panel
Operation in normal mode In normal mode, pressing panel buttons executes following functions:
Table 1-41 Operation in Normal Mode
Buttons and Switches
Operation Pause Load / Eject
Function Turns the printer on and off. Alternates printing and non-printing states. Enables the micro adjust function, when held down for 3 seconds. Loads or ejects paper Micro feeds forward, when that function is enabled. Line feed, when pressed briefly. Form feeds, when held down for a few seconds. Micro feeds backward, when that function is enabled. Advances continuous paper to the tear-off position. Selects CSF bin 1 / 2 or card mode. Selects font. Selects pitch.
LF / FF
Tear Off / Bin Font Pitch
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Operations at power on Turning the printer on while pressing panel buttons executes the functions below:
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Table 1-42 Operation at Power On
Button
Load / Eject LF / FF Load / Eject and LF / FF Pitch Font and Tear Off / Bin Pause
Function LQ self-test Draft self-test Hexadecimal data dump Default setting Clear EEPROM Bi-d adjustment Not available
Others Operation in default setting mode
The buttons used in default setting mode are as follows:
Table 1-43 Operation at Default Setting Mode
Button
Pitch Tear Off / Bin
Function Selects the menu. Changes the setting Not available
Others
1.4.2 Status Codes Indicated by the LEDs and Beeper Table 1-44 Indicators and Beeper
Pause Pause Paper Out Paper Jam Head Hot Cover Open Micro Adjust Tear Off Bin Selection Pitch Selection Font Selection Fatal Error On On On Blinks On Blinks --------Blinks Paper Out --On Blinks --------------Blinks Tear Off / Bin --------------------Blinks Pitch --------------------Blinks Font --------------------Blinks Beeper --rrr q q q q q --rrr r r r r r q q q q q
r indicates the beeper sounds for 100 ms with an interval of 100 ms. q indicates the beeper sounds for 500 ms with an interval of 100 ms. -- indicates that the LED or beeper is not used to indicate this status condition.
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1.4.3 Micro Adjust Function
The micro adjust function lets you set the TOF and tear off positions. After the printer is put in this mode, you can adjust the top of form (TOF) position up or down in increments of 1/216 inch by pressing the LF/FF or Load/Eject button. The adjusted TOF position is saved to the EEPROM. If the printer is turned off, the setting is not cleared. The function is operational in the printer under the following conditions and within the following area: Conditions required for the adjustment The TOF position can be adjusted under the following conditions: 1. The data buffer is empty and the printer is on line. 2. Paper is at the TOF position. 3. The Pause button is held down more than 3 seconds to put the printer in micro adjust mode. Adjustable area Micro adjust positions can be set within the following range from the top edge of the page: 3 mm~ 8.5 mm , 8.5 mm ~ 2 87.9 mm (0.12" ~ 0.33", 0.33" ~ 11.34" )
1.4.4 Tear Off Function
The tear off function advances continuous paper to the tear off position when the Tear Off / Bin button is pressed. There are two modes for this function: auto tear off and manual tear off. The tear off mode can be selected in the default setting mode. After the paper is torn off at the perforation, it is fed back to the TOF position when any new print data is sent to the printer. The tear off position is saved in the EEPROM, and if the printer is turned off, the setting is not cleared. Conditions required for the adjustment f Auto tear off function Ì Ì Ì Ì Auto tear off has been set to ON in default setting mode. The release lever has been set to Tractor. The data buffer is empty, and the printer is on line. More than 3 seconds have passed after the host computer finished transferring print data.
f Manual tear off function Ì Ì Ì Ì Auto tear off has been set to OFF in default setting mode. The release lever has been set to Tractor. The data buffer is empty and the printer is on line, or the printer is off line. The Tear Off button was pressed under all the conditions listed above.
Paper handling with the tear off position Ì Ì Ì Ì Ì Ì Pressing the Pause button with the printer off line feeds the paper back to the TOF position for the next page and brings the printer back on line. Pressing the Pause button with the printer on line feeds the paper back to the TOF position for the next page and takes the printer off line. Pressing the LF /FF button feeds the paper back to the TOF position for the next page and executes a line feed. Pressing the Load /Eject button feeds the paper back to the TOF position for the next page and ejects paper backward. Pressing the Pause button more than 3 seconds puts the printer in micro adjust mode, where you can adjust the tear off position by pressing the LF /FF or Load/Eject button. If the printer is turned off while in the tear off mode, the tear off position is saved, and paper is fed back to the TOF position for the next page by turning on the printer, again.
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1.4.5 Self-test Function
Pressing the Load / Eject button while turning on the printer puts the printer in LQ self-test mode. Pressing the LF/FF button while turning on the printer puts the printer in Draft self-test mode. You can stop the self-test temporarily by pressing the Pause button, and you can exit the self-test mode by turning off the printer. When pages are printed from the CSF, the first sheet is used for scaling the sheet length. Then, the maximum number of printable lines is printed as the bottom line of the sheet and this number is saved in non-volatile memory as the default page length. Page lengths are saved individually when a dual-bin CSF is in use. The self-test prints out the following: Ì The maximum number of printable lines (only on cut sheets from the CSF) Ì The pattern of characters shown in the figure below.
Figure 1-10 Self-test Printout 1.4.6. Hexadecimal Dump Function
Pressing the Load /Eject and LF/FF buttons while turning on the printer puts the printer in hexadecimal dump mode. In this mode, data received is printed out in hexadecimal format, along with the corresponding ASCII characters. The function is useful to check data received from the host. If a received code is not a printable ASCII character, the printer prints a period (.) in the ASCII column. When received data remains in the buffer, that data is printed by pressing the Pause button.
Figure 1-11 Hexadecimal Printout
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1.4.7 Default Setting Function
Pressing the Pitch button while turning on the printer puts the printer in default setting mode. Some default printer settings can be changed in this operation. The method for setting defaults is described in the instruction sheets, which are printed out immediately after you enter the mode. You are asked to use three buttons (Font, Pitch, and Tear Off / Bin) and watch six LEDs (Pitch: 3 LEDs, Tear Off/Bin: 2 LEDs, and Pause: 1 LED) on the control panel. Refer the instructions printed in default setting mode for the actual method used to set defaults.
1.4.8 EEPROM Clear Function
Pressing the Font and Tear Off /Bin buttons while turning on the printer resets the EEPROM to the standard factory settings. This operation initializes the items below to the factory settings in the right-hand column.
Table 1-45 EEPROM Initialization Settings
Setting Font Pitch Character Table Other Font Selection Page Format ( Tractor Rear / Front ) Page Format (Friction , CSF Bin 1 / Bin 2 , Manual Feed Rear / Front ) Print Direction Auto LF Auto Tear-Off 1-inch Skip High Speed Draft Input Buffer BDC-ST Reply Roll Paper I/F Selection Auto I/F Wait Time Software Slashed Zero Buzzer A.G.M (IBM Mode) Auto CR ( IBM Mode ) Adjust Tear-Off Position Paper Conditions Roman 10 CPI PC437 Roman-T Page Length: TOF Position: Bottom Margin : Page Length: TOF Position: Bottom Margin: Bi-d Off Off Off On On On Off Auto I/F Mode 10 sec. ESC/P2 Off On Off Off 0 inch Friction: Bin 1 , Tractor: Tear-Off: Status Off 11 inches 8.5 mm (0.333 inches) 11 inches 22 inch 8.5 mm (0.333 inch) 22 inches Factory Default
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1.4.9 Bidirectional Adjustment Function
Pressing the Pause button while turning on the printer puts the printer in bidirectional adjustment mode. In this mode, you can adjust the bidirectional alignment for the following three modes: 1. High-speed draft mode 2. Draft mode 3. LQ mode For instructions on performing the adjustment, see Chapter 4.
1.5 Initialization
1.5.1 Software Initialization
This initialization is activated by the control code ESC@. This initialization: Ì Clears unprinted data. Ì Resets the printer's setting defaults.
1.5.2 Operation Initialization
This initialization is activated by receipt of the INIT signal (negative pulse). This initialization: Ì Clears the buffer of all data. Ì Ì Ì Cancels download character definition. Puts the printer in standby state, if no errors occur. Executes software initialization.
1.5.3 Power On Initialization
This initialization is activated by power on or by a cold-reset command (remote RS command). This initialization Ì Ì Initializes the printer mechanism. Executes operation initialization.
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1.6 MAIN COMPONENTS
The main components of the LQ-2170 are designed for easy removal and repair. main components are: Ì C165 MAIN Board Assembly Ì C165 PSB/PSE Board Assembly (120 V/230 V) Ì C165 PNL Board Assembly Ì Printer Mechanism Ì Housing Assembly The following figure shows the main components of the LQ-2170. The
Figure 1-12 Main Components
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1.6.1 C165 MAIN Board Assembly
The C165 MAIN board consists of a TMP96C141AF CPU, an E05B13 gate array, a program/CG ROM, a PS-RAM, an EEPROM, etc.
IC11 PF Motor Driver UDN2917EB IC3 P-ROM IC 5 PS RAM
IC 2 GATE ARRAY E05B13
IC12 CR Motor Driver SLA7024M
Head Drive TRANSISTOR
IC 1 CPU TMP96C041AF
EEPROM
CN2 for Option I / F
Figure 1-13 C165 MAIN Board Assembly
1.6.2 C165 PSB/PSE Board Assembly
These boards have two AC input voltage ratings: 120 VAC (C165 PSB) and 230 VAC (C165 PSE). Both boards consist of a transformer, switching FET, regulator IC, diode bridge, etc. The power supply board provides +5 VDC and +35 VDC for the main board and printer mechanism.
F1 Fuse Q1 Switching FET PC1 Photo Coupler IC52 OP-amp
D51 Diode
DB1 Diode Bridge
T1 Transformaer
IC51 Switching Regulator TL494CN
Figure 1-14 C165 PSB/PSE Board Assembly
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1.6.3 C165 PNL Board Assembly
This board function is the control panel for the LQ-2170. It consists of a power switch, six buttons, and 10 indicator LEDs. This board is almost same as it for the LQ-2170.
SW LED LED LED LED LED Power SW
SW
SW
SW
SW
SW
Figure 1-15 Board Assembly C165 PNL
1.6.4 Printer Mechanism
The printer mechanism consists of an 24-pin impact dot head, paper feed (PF) motor, ribbon feed (RF) motor, paper end (PE) sensor, home position (HP) sensor, platen gap (PG) sensor, release lever sensor, etc.
Figure 1-16 Printer Mechanism
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1.6.5. Housing Assembly
This consists of printer cover assembly, edge guide assembly, upper housing, lower housing assembly, etc.
Figure 1-17 Housing Assembly
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CHAPTER 2
Table of Contents
Operating Principles
2.1 PRINTER MECHANISM OPERATION 2-1 2.1.1 Printing Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2.1.2 Carriage Movement Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 2.1.3. Platen Gap Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 2.1.4 Paper Handling Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 2.1.4.1 Release Lever. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .