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EPSON TERMINAL PRINTER
LQ-2070
SERVICE MANUAL
EPSON
4006244
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
-
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 April 8,1996 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 Product Description
Table of Contents
1-1 1.1 Specifications 1.1.1 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.1.2 Accessories . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . 1-3 1-4 1.2 Hardware Specifications 1.2. I Printing Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 . ... .... 1-5 1.2.2 Printing Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 1-20 1.3 Firmware Specifications 1.3.1 Control Codes and Fonts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .....1-20 1.3.21nterface Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .....1-21 1.3.2.1 Parallel Interface (Forward Channel) . . . . . . . . . . . . . . . . . . . . .. 1-21 1.3.2.2 Parallel interface (Reverse Channel) . . . . . . . . . . . . . . . . . . . . . 1-23 1.3.2.3 Interface Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. ..1-24 1.3.2.4 Preventing the Host from Data Time-out . . . . . . . . . . . . . . .....1-24 1.3.3 Paper Handling Firmware Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 1-25 1.3.4 PaperWidth Sensor Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28 1-29 1.4 Operating Instructions 1.4.1 Control Panel Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. ..1-29 1.4.2 Status Codes Indicated by the LEDs and Beeper . . . . . . . . . . . . . . .....1-30 1.4.3 Micro Adjustment Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .....1-31 1.4.4 TearOff Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .....1-31 1.4.5 Self-test Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .....1-32 1.4.6 Hexadecimal Dump Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..1-32 1.4.7 Default Setting Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .....1-33 1.4.8 EEPROM Clear Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .....1-33 1.4.9 Bidirectional Adjustment Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34 1.4.10 Quiet Mode Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..1-34
1.5 Initialization
1-34
1.5.1 Software initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .....1-34 1.5.2 Operation initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .....1-34 1.5.3 Power On initialization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .....1-34
1-35 1.6 MAIN COMPONENTS 1.6.1 C186 MAIN Board Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36 1.6.2 C166 PSB/PSE Board Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36 1.6.3 C165 PNL Board Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-37 1.6.4 Printer Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-37 1.6.5 Housing Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-38
List of Figures
Figure 1-1. Exterior View of the LQ-2070 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Figure l-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 l-5. PrintableAreafor Continuous Paper . . . . . . . . . . . . . . . . . . . . . . . 1-13 Figure 1-6. Label Size. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14 Figure 1-7. Printable Area for Roll Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15 Figure l-8. Data Transmission Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22 Figure l-9. Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29 Figure 1-10. Self-test Printout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32 Figure l-11. Hexadecimal Dump Printout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32 Figure l-12. Main Components, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35 Figure l-13. C186MAlN Board Assembly.. . . . . . . . . . . . . . . . . . . . . . . . . . . 1-36 Figure l-14. C166 PSB/PSE Board Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 1-36 Figure l-15. C165 PNLBoardAssembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-37 Figure l-16. Printer Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-37 Figure l-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 l-4. PrintSpeed and Printable Columns . .........................1-5 Table l-5. Print Resolution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .........1-5 Table 1-6. Paper Path and Paper Types . . . . . . . . . . . . . . . . . . . . . ..........1-6 Table l-7. PaperThickness Lever Positions.. . . . . . . . . . . . . . . . . . . . . . . . . . . 1'7 Table 1-8. Specifications for Cut Sheets (Single Sheet, not Multipart) . .......1-8 Table 1-9. Specifications for Cut Sheets (Multiparty). . . . . . . . . . . . . . . . . . . . . .. 1-8 Table l-l O. Printable Area for Cut Sheets. . . . . . . . . . . . . . . . . . . . . . . .......1-9 Table l-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 Multipatt ) 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. . .................1-1 6 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. . . . . . . . . . . . . . . . . . . . . . .................1-1 8 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 -34. Paper Handling Sequence 1 . . . . . . . . . . . . . . . . . . . . . . . . . .....1-25 Table -35. Paper Handling Sequence 2. . . . . . . . . . . . . . . . . . . . . . . . . .....1-25 Table -36. Paper Handling Sequence 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26 Table -37. Paper Handling Sequence 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26 Table -38. Paper Handling Sequence 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27 Table -39. Paper Handling Sequence 6. . . . . . . . . . . . . . . . . . . . . . . . . .....1-27 Table -40. PaperWidth SensorOperation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28 Table 1-41. Operations in Normal Mode . . . . . . . . . . . . . . . . . . . . . . . . . .....1-29 Table l-42. 0perationsat Power On....... . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30 Table 1-43. Operations for Default Setting Mode. . . . . . . . . . . . . . . . . . . . . .. .1-30 Table l-44. indicators and Beeper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30 Table 1-45. EEPROM Initialization Settings. . . . . . . . . . . . . . . . . . . . . ... , .. .1-33
LQ-2070 Sendce Manual
Product Description
1.1 Specifications
These specifications provide statistical information for the LQ-2070 serial impact dot matrix printer.
1.1.1. Features
The LQ-2070 is a 24pin serial impact dot-matrix printer suitable for the VAR (value addedreseller) market. The major features of this printer are: . Print speed High speed draft Draft 300 characters per second (cps) 275 CPS 92 cps at 10 characters per inch (cPi) (front, rear) (front, rear) (front, rear) (front, rear, bottom)
~Q
q
Feeding method
Friction feed Push tractor feed Push and pull tractor feed Pull tractor feed
q
Feeder Paper/media
Front push tractor(option), rear push &actor, CSF bin 1 / bin 2 (option) Pull tractor (option), roll paper holder (option) Single sheet, continuous paper, multipart paper, envelopes, card labels, roll paper 9 LQ and 1 draft bitmap typefaces, 4 Sarable typefaces, 8 barcode fonts Standard version NLSP version 64KB 51 dB (A), 1S0 7779 pattern Total print volume 6 million lines, except printhead MTBF 6000 power on hours (POH) Printhead life 200 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+ 3 copies Font, Pause, Condensed Pause, Tear off, Bin, LF/FF, Load/Eject, Micro Adjust, Default Setting 11 tables 20 tables
q
. Fonts
q
Character tables Input buffer Acoustic noise Reliability
q
q
q
q
Interfaces
. Control codes . Copy capability
q
Control panel functions
Refer to Figure 1-1 on the next page for an exterior view of the LQ-2070. Note: Roll paper is not available on all models and not available in the U.S.
Rev.A
1-1
Product Description
LQ-2070 Service Manual
Figure 1-1 Exterior View of the LQ-2070
1-2
Rev.A
LCk2070 Service Manual
Product Description
1.1.2. Accessories
q
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
Quantity
1 1 1 1
. Consumables
Table 1-2 Consumables
Consumable Item Ribbon cartridge Ribbon pack
Part Number
S015083/S01 5086
soloo31/sol 0033
. Options
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 l/F card 32KB intelligent serial l/F card 32KB intelligent parallel l/F card Local Talk l/F card 32KB IEEE-488 l/F card Coax l/F card Twinax l/F card Ethernet l/F card ! I
Description
C80673* C80674* C80032* #831 O C82305* / C82306* C82307* / C82308* C8231O*/C82311· C82312* C82313* C82314* C82315* C82331·
I
* The number represented by an asterisk varies, depending on the country. Note: Roll paper is not available on all models and not available in the U.S.
Rev.A
1-3
Product Description
LQ-2070 Servioe Manual
1.2 Hardware Specifications This section provides detailed hardware specifications for the LQ-2070.
1.2.1 Printing Method . l?rintig method
. Color . Number of pins . Pin arrangement q print Pin diameter Impact dot matrix Black 24 pins 12x 2 staggered
0.2 mm (0.0079 inch)
f)=108°* J
#2
0.2°
.
~1I18O')
~'~gd're"'on
-- 1
`:~9Tf #7
~
T #4 0.141mm 7 (1/180') +#6 *#8
+#9 3.246mm (23/180") +#l b$13 0,,5 T #l? 1 I
b #lo b#12 > ; I I I 1 +$20 T #16 9#18 Head center
T#19 +#21
v
4 #23
0,423 mm(l160') \ 1=
I I
!/ r 1-
+#22
-l
Figure 1-2. Pin Configuration
$k 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
Rev.A
LQ-2070 Service Manual
Product Description
1.2.2 Printing Specifications
q
Copy capability Print speed and printable columns
1 original+ 3copies
q
Table 1-4 Print Speed and Printable Columns
Print Speed (cps) Print Mode
High-speed draft
Character Pitch
10 cpi 10 cpi
Printable Columns
Normal
136 136 163 204
copy
300
275
330
244
183
220
Draft
12 cpi
15 cpi
Draft condensed 17 cpi 20 cpi 10 cpi LQ 12 cpi
413
275
233
272 136 163 204
236
275 92
157
183 61
110
138
73
92
15 cpi
LQ Condensed 17 cpi 20 cpi
233
2 7 2
157
183
105
122
. Resolution
Table 1-5 Print Resolution
Print Mode
High-speed draft Draft Draft condensed LQ 8 pin bit image 24 pin bit image . Raster graphics
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 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
q
Acoustic noise
51 dB (A), 1S0 7779 pattern
Rev.A
1-5
Product Description
LQ-2070 Service Manual
1.2.3 Paper Handling Specifications
q
Feeding method
Friction feed Push tractor feed Push and pull tractor feed
(front, rear) (front, rear) (front, rear, bottom)
. Feeder . Paper path
Front push tractor(option), mar push tractor, CSFbin 1 /bin 2 (Option) Pull tractor (Option) and roll paper holder (Option) Manual insertion CSF Tractor 1/6 inch feed Continuous feed Front or rear in, top out Rear in, top out Front, rear, or bottom in, top out 45 msec 0.127 m /see ( 5.0 inches/see)
q
Line spacing Feed speed
1/6 inch or programrnable in increments of 1/360 inch.
q
. Release lever
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 insedion Rear insertion Friction CSF bin 1 CSF bin 2 Roll paper holder Rear tractor Front tractor Full release 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% OK% OK% OK% OK OK X
Card Stock I Envelopes
OK% 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
% This symbol after "OK" means you need to check the paper type before using it with this paper path.
1-s
Rev.A
LQ-2070 Service Manual
Product Description
. Paper thickness lever
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) Paper Thickness (mm)
Lever Position Minimum o 1 2
3 4 5 6
Maximum 0.0047 0.0075 0.0102
0.0126 0.0142 0.0157 0.0205
Minimum 0.065 0.12 0.19
0.26 0.32 0.36 0.40
Maximum 0.12 0.19 0.26
0.32 0.36 0.40 0.52
0.0024 0.0047 0.0075
0.0102 0.0126 0.0142 0.0157
--------- Precautions for Handling Paper 1. Friction feed . Set the release lever to the FRICTION position and install the paper eject assembly q Load paper from the front or top entrance. q Do not use continuous paper. . Do not 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 endhasbeen detected. q Use the paper-tension unit. q Insert the multipart cut sheet forms only from the front.
2. Push tractor feed
. Set the release lever to the REAR PUSH/FRONT PUSH position and install the paper eject assembly. q Load paper from the rear or front entrance. q Release the friction feed mechanism. . Multipart paper must be carbonless. q Use the paper-tension unit. . Do not perform reverse feeds greater than 1/6 inch. . Do not perform reverse feeds after the paper end has been detected, because accuracy of paper feeding cannot be assured. 3. Pull tractor feed . Set the release lever to the PULL position. q Load paper from the front, rear, or bottom entrance. (The front or bottom entrance is recommended for thick paper or labels.) q 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. . Do not perform reverse feeds.
Rev.A
1-7
Product Description 4. Push-pull tractor feed
q q
LQ-2070 Service Manual
release lever to the REAR PUSH/FRONT PUSH position. Load paper from the front or rear entrance. q Remove the paper eject assembly and attach the pull tractor unit. q Remove any slack in the paper between the platen and pull tractor. . Precisely adjust the horizontal position of the pull tractor and push tractor. . Multipart paper mustbe carbonless. . Do not perform reverse feeds greater than 1/6 inch. . Do not perform reverse feeds after the paper end has been detected.
Set the
1.2.4 Paper Specifications This section describes the printable area and types of paper that can be used in this printer.
Cut Sheets
q
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 I Quality Plain paper, recycled paper. Not curled, not folded, or not crumpled. 101 mm (4.0") 147 mm (5.8") 0.065 mm(O.0025") 52.3 g/m2 (14 lb)
Rear Entry Maximum Minimum
101 mm (4.0") 101 mm (4.0") 0.065 mm(O.0025") 52.3 g/m2 (14 lb) I Plain paper, recycled paper. Not curled, not folded, or not crumpled.
Maximum
420 mm (16.5") 420 mm (16.5") 0.14 mm (0.0055") 90 g/m2 (24 lb)
420 mm (1 6.5") 420 mm (16.5") 0.14 mm (0.0055") 90 g/m2 (24 lb)
Table 1-9 Specifications for Cut Sheets (Multipart)
I
Minimum Width Length Copies Total thickness W e i g h t % Quality Binding
Front Entry
Maximum 420 mm (1 6.5") 420 mm (16.5")
I
Minimum
Rear Entry
Maximum 420 mm (16.5") 420 mm (16.5")
101 mm (4.0") 147 mm (5.8")
101 mm (4.0") 101 mm(4.0")
1 original+ 3 copies 0.12 mm (0.0047") I 40g/m2(121b) 0.32 mm (0.013")
1 original+ 3 copies 0.12 mm (0.0047") 0.32 mm (0.013")
I
58 g/m2 (15 lb)
I
40 g/m2 (12 lb)
I
58 g/m2 (15 lb)
Plain paper, recycled paper. Not curled, not folded, or not crumpled. A line of glue at the top or one side of the form.
Plain paper, recycled paper. Not curled, not folded, or not crumpled. A line of glue at the top of the form.
% This weight is for one sheet of the multipart form.
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LC?-2070 Service Manual
q
Product Description
Printable area
Figure 1-3 shows the printable area for cut sheets. The table b;low 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 (PWs 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 (0.1 2") or more (PW <364 mm (14.33")) 25 mm (0.98") or more (PW = 420 mm (16.5")) 3 mm or more (PW S 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 (0.1 7") or more
RM (right margin)
TM (top margin) BM (bottom margin)
I
------
----?
TM
7
PL
J ------
} t -- ------ -- ? BM
Figure 1-3 Printable Area for cut Sheets `
Rev.A
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Product Description
LQ-2070 Service Manual
Envelopes and Card Stock
q
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 Width Length *
----
Rear Entry Minimum Maximum
Maximum
I
166 mm (6.5")
92 mm (3.6") 240 mm (9.5")
104 mm (4.1") ....
!!5L_E&
Total thickness Weight Quality
--..--.-. --.... ....
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").
45g/m2(12 lb)
91 g/m2 (24 lb)
Bond paper, plain paper, or airmail. No glue at the flap. Not curled. not folded. or not C~MDled.
% Printing on envelopes is available only at normal temperatures and humidity. % Insert envelopes from the rear entrance only. X 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 Maximum 148 mm (5.83") 148 mm (5.83")
105 mm (4.1 3")
105 mm (4.13")
0.22 mm (0.0087") 192 g/m2 (51 lb) Plain paper, recycled paper. Not curled, not folded, or not crumpled.
0.22 mm (0.0087") 192 g/m2 (51 lb) Plain paper, recycled paper. Not curled, not folded, or not crumpled.
% Printing on card stock is available only at normal temperatures and humidity. * When the longer side of an A6 card is to be inserted horizontally, insert it from the rear entrance.
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q
Product Description
Printable area
The figure below shows the printable area for envelopes and card stock. Each ~bbreviation 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
Envelopes
Refer to Table 1-11. Refer to Table 1-11. 3 mm (0.1 2") or more 3 mm (0.12") 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 (0.1 7") or more
margin)
.
4.2 mm (0.17") or more
Pw
t
\
-%
>1
-w\\
I
TM ` ------ ?
-#I `>; LM ~
I
K,
Pw
,
I
>1
,
`
>i RMk+
.--J--
TM ------ +
+ ------ BM .------ +
Figure 1-4 Printable Area for Envelopes and Card Stock
Rev.A
1-11
Product Description
LQ-2070 Service Manual
Continuous Paper
q
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 Maximum 406 mm
Rear Entry
Minimum 101 mm Maximum 406 mm
Bottom Entry
Minimum 101 mm Maximum 406 mm
(4.0") 101 mm (4.0")
(16") 559 mm (22")
(4.0")
101 mm
(16")
559 mm
(4.0")
101 mm
(16")
559 mm
(4.0")
(22")
(4.0")
(22")
1 original + 3 copies 0.065 mm (0.0025")
0.32 mm
1 original+ 3 copies
0.065 mm 0.32 mm
1 original + 3 copies
0.065 mm
0.32 mm
(0.013") 82 g/m2 (22 lb) 58 g/m2 (15 lb)
(0.0025") 52.3 g/m2 (14 lb) 40 g/m2
(12 lb)
(0.013") 82 g/m2 (22 lb) 58 g/m2
(15 lb)
(0.0025") 52.3 g/m2 (14 lb) 40 g/m2
(12 lb)
(0.013") 82 g/m2 (22 lb) 58 g/m2
(15 lb)
52.3 g/m2 (14 lb) 40 g/m2 (12 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
1-12
Rev.A
LQ-2070 Service Manual
q
Product Description
Printable area
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
I
Abbreviations
PW (width) PL (length) LM (left margin) RM (right margin) TM (top margin) BM, (bottom margin)
I
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 (0.1 7") or more
<
Pw
I I
I
t
I 0 l-
4 ------
BM -- T --)
Figure 1-5 Printable Area for Continuous Paper
Rev.A
1-13
Product Description
LQ-2070 Service Manuai
Continuous Paper with Labels
q
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 Maximum
Rear Entry
Minimum --Maximum
Bottom Entry
Minimum Maximum
See the figure below 101 mm 406 mm
See the figure below
(4.0") Base sheet length
(one page)
(16")
559 mm
...
101 mm
406 mm
(4.0")
101 mm
(16")
559 mm
101 mm (4.0") 0.07 mm
(0,0028") 0.16 mm (0.0063")
(22") 0.09 mm
(0.0035)
``-
`-`--
(4.0")
0.07 mm
(0.0028")
(22")
0.09 mm
(0.0035")
Base sheet thickness
Total thickness Label weight Quality
0.19 mm
(0.0075") `-`-
0.16 mm
(0.0063")
0.19 mm
(0.0075")
68 g/m2 (17 lb) . A very continuous form labels . A very mini-line or equivalent quality labels
-..
68 g/m2 (17 lb) . Avery continuous form labels . Avery mini-line or equivalent quality labels
.-.
% Printing on labels is available only at normal temperatures and humidity. * The base sheet for the labels must be continuous paper. % Continuous paper with labels should be inserted from the front or bottom entrance.
<
-- T 15/16inch (23.6mm) min. 2.5inch (63.5mm) min. >
Label
RO.linch (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.
1-14
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Lt2-2070 Service Manual
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
I I
Front Entry Minimum Width
Length Thickness Weight Quality I --..---
Rear Entry Maximum Minimum Maximum 216 mm (8.5")
.-. ----0.07 mm (0.0028") 52.3 g/m2 (14 lb)
I
--.-.
0.09 mm (0.0035")
82 g/m2 (22 lb)
Plain paper, recycled paper. Not curled. not folded, or not crumpled.
q
Printable area
Figure 1-7 gives the printable area for roll paper. Each abbreviation is defined in the following table.
Table 1-18 Printable Area for Roll Paper
Abbreviations
PW (width) PL (length) LM RM TM BM
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
--
Pw &
I I
II
1
-LTM
1
PL
Figure 1-7 Printable Area for Roll Paper
Rev.A ,,
1-15
Product Description
LQ-2070 Service Manuai
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, 48dotcJ character) 506.0 mm (W) x 123.5 mm (D) x 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 I 120VAC I 103.5to 132VAC I 50t060 Hz 49.5 to 60.5 Hz 1.0 A (max. 2.4A) Approx. 34 W (self-test in draft mode at 10 cpi) 10 MQ min. (between AC line and chassis, 500VDC)
Specifications
I
1000 VAC rms. 1 min. or 1200 VAC rms. 1 sec. (between AC line and chassis)
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 I 50to 60 Hz 49.5 to 60.5 Hz 0.5 A (maximum 1.2A) I Approx. 34 W (self-test in draft mode at IOcpi) 10 MQ min. (between AC line and chassis, 500VDC) 1500 VAC rms. 1 min. (between AC line and chassis)
Specifications
1-16
Rev.A
LQ-2070 Service Manual
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
I
Specifications
5 to 35° C/41 to 95° F ( operating %1) 15to 25° C/59 to 77° F (operating X1,X 2) -30 to 60° C/-22 to 140° F (non-operating) 10 to 80 % RH (operating M 1) 30 to 60 ?'o RH (operating X 1,X 2) O to 85 % RH (non-operating %1) 1 G, within 1 ms (operating) 2 G, within 2 ms (non-operating %3) 0.25 G, 10 to 55 Hz (operating ) 0.50 G, 10 to 55 Hz (non-oDeratina % 3)
Humidity
Resistance to shack Resistance to vibration
% 1: Without condensation. *2: During printing on multipart paper, envelopes, card stock, or labels. %3: In shipment container.
1.2.8 Reliability
Table 1-23 gives maximum life and usage specifications.
Table 1-23 Reliability Statistics
Item 1
Total print volume MTBF Printhead life Ribbon life 6 million lines (except printhead) 6000 power on hours (POH) 1 I 200 million strakes/wire 8 million characters
Specification
I
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 N0,950 with D3
I
230 V
EN60950 (TuV. SEMKO, DEMKO, NEMKO, FIMKO )
FCC parl 15 subpart B class B EN55022 (CISPR pub.22) CSA CI08.8 class B
Rev.A
1-17
Product Description
LQ-2070 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 Non-Automatic Weighing Instruments Directive 90/384/EEC EN45501
1.2.11 Physical Specifications
Table 1-26 provides printer dimensions and weight.
Table 1-26 Physical Specifications
Dimensions Weight 639 mm (W) x402 mm (D) x 257 mm (H) 25.16" (W) X 16.14" (D) X 10.12" (H) I Approx. 13 kg (28.66 lb)
I
1.2.12 Cut Sheet Feeder Specifications
This printer has two CSF options: a high-capaaty 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 (%1) / 110 sheets (% 2) 185 sheets (%3) / 135 sheets (% 4) 25 sheets (X 5) 30 sheets (% 6) 50 sheets (% 7) 40 sheets (% 8)
CSF Bin 2
50 sheets (~ 1 ) / 50 sheets (% 2) 60 sheets (~ 3) / 60 sheets (3$ 4) -.. -.. ---
% 1 : Plain paper (weight: 82 g/m2, 22 lb) or recycled paper, except for A3-size paper.
%2: Plain paper (weight: 82 g/m2, 22 lb) or recycled paper, A3 paper. %3: Plain paper (weight: 64 g/m2, 17 lb), except for A3 paper. *4: Plain paper (weight: 64 g/m2, 17 lb), A3 paper. X 5 : Envelopes (weight: 91 g/m2, 24 lb) ~ 6: Envelopes (weight: 45 g/m2, 12 lb) %7: Card stock (weight: 192g/m2,51 lb; thickness: 0.22 mm, O.0087") 3+8: 1 original+ 5 copies (thickness: 0.36 mm, 0.0142")
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Rev.A
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Product Description
. Stacker capacity
Table 1-28 Capacity of the Stacker
CSF Bin 1
Single sheets Envelopes Card stock Multipart 140 sheets (+$ 1) 100 sheets (~ 2) 15 sheets (% 3) 28 sheets (% 4) 30 sheets (% 5) 36 sheets (3$6)
CSF Bin 2
---------... -
%1: Single sheets (weight: 82 g/m2i 22 lb), except for A3 paper *2: Single sheets (weight: 82 g/m ,22 lb), A3 paper *3: Envelopes (weight: 91 g/m2, 24 lb) *4: Envelopes (weighti 45 g/m2, 12 lb) *5: Card stock (weight: 192 g/m2, 51 lb; thickness: 0.22 mm, 0.0087") 3%6: 1 original+ 5 copies (thickness: 0.36 mm, 0.0142") . Reliability MCBF: . Environmental conditions 2 x 105 cycles
Table 1-29 Environmental Conditions
Operating
Temperature Humidity 5 to 35° c (41 to 95° l=) 10 to 80% RH (%1, X 3) 30 to 60% RH (%2, X 3)
Non Operating
30 to 60° C (-22 to 140° F) O to 85% RH (%3)
Single sheets (plain, 64 g/m2 < weight <82 g/m2 ;/17 lb e weight <22 lb) Single sheets (plain, weight< 64 g/m2, 82 g/m2 < weight/weight < 171b, 22 lb < weight) Single sheets (recycled), multipart, envelopes, and card stock Without condensation
Rev.A
1-19
Product Description
LQ-2070 Service Manual
1.3 Firmware Specifications This section provides detailed information about LQ-2070
1.3.1 Control Codes and Fonts
q
firmware.
Control codes Typefaces
ESC/P2 and IBM 2390/2391 plus emulations. Bitmap fonts EPSON Draft EPSON Roman EPSON Saris Serif EPSON Courier EPSON Prestige EPSON Script EPSON OCR-B EPSON Orator EPSON Orator-S EPSON Script C Scalable font EPSON Roman EPSON Saris Serif EPSON Roman T EPSON Saris Serif H
q
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 10.5pt., 10.5pt., 10.5pt., 10.5pt., 8pt.-32pt. (every 2 pt.) 8pt.-32pt. (every 2pt.) 8pt.-32pt. (every 2pt.) 8pt.-32pt. (every 2pt.)
Bar code fonts EAN-13, EAN-8, Interleaved 2 of 5, UPC-A, UPC-E, Code 39 Code 128, POSTNET International character sets 14 countries U.S.A., France, Germany, U.K., Denmark 1, Sweden, Italy, Spain l, Japan, Norway, Denmark2, Spain2, Latin America,Korea,Legal The standard version has 11 character tables and the NLSP version has 20 character tables, as shown in the following table.
q
. Character tables
Table 1-30 Character Tables
Version
Italic Standard Version PC-860 (Portuguese) PC-865 (Nordic) I Roman8 Italic
Character Tables
pC-437 (U.S., Standard Eur.)
I
PC-850 (Multilingual) PC- 863 (Canadian-French) BRASCII I PC-850 (Multilingual) I PC-853 (Turkish) I PC-866 (Russian) Code MJK (CSFR) d
)
PC-861 (Icelandic) Abicomp ] ISOLatin 1 PC- 437 (US, Standard Eur.) I PC-852 (East Europe) I PC-857 (Turkish) MAZOWAI (Poland) I
I
I
NLSP Version
PC-437 Greek PC-855 (Cynllic) PC-869 (Greek)
I
I I
1-20
ISO 8859-7 (Latin/Greek)
Estonia (Estonia) PC-866 LAT (Latvia)
ISO Latin IT (Turkish)
PC-744(LST 1283:1993) PC-864 (Arabic)
Bulgaria (Bulgarian) ISO Latin 2
Rev.A
LQ-2070 Service Manual
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 (Fotward Channel)
q q q
Transmission mode Adaptable connector Synchronization Signal level
8-bit parallel, IEEE-P1284, compatibility mode 57-30360 (Amphenol) or equivalent STROBE P1.lk BUSY and ACI@lLG signals `ITL compatible (IEEE-P1284 level 1. device)
. Handshaking
q
Table 1-31 Pin Assignments for Forward Channel
Pin No.
1 2 3 4 5 6 7 8 9
Signal Name
STROBE DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA7 DATA8 ACKNLG
Return GND pin
19
20
In IOut
In In In In In In In In In
Function Description
Strobe pulse. Input data is latched at falling edge of the signal Parallel input data to the printer bit O: 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 3.9KQ resistor. This line is pulled up to +5 V through 3.3KQ resistor. Chassis GND.
21 22 23 24 25 26 27 28 29 28 28
30 30
10
11 , 12 13 14 31 32 36 18 35 17 16,33,
out
out
BUSY PE SLCT AFXT M ERROR SLIN Logic H
+5V
out out
In In out In out Out --
29
30
-------
Chassis
----
19-30 15,34
GND NC
-------
-----
Signal GND. Not connected.
Rev.A
1-21
Product Description
DATA
LC?-2070 Service Manual
`T
R O B E
~tsetu~<
tstb
!
BUSY
1
I
p-r
I
&
!
treadv~l>
tbusy I
ACKNLG
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 o o -.. -..
Maximum
-... ----..... -... 500 nsec -... 10 ~ -... -... 120 nsec 200 nsec
0 The BUSY signal is active (HIGH level) under the conditions below: 0 During data receipt. 0 If the input buffer is full. 0 If the INITsignal is active (LOW level). 0 During hardware initialization. 0 In self-test mode. 0 In adjustment mode. 0 In default-setting mode. 0 The ERROR signal is active (LOW level) under the conditions below: 0 If there is a fatal error. 0 If there is a paper-out error. 0 If the cover is open (cover open error). . PE signal is active (HIGH level) under the conditions below: 0 If there is a paper-out error. 1-22
Rev.A
LQ-2070 Service Manual
Product Description
1.3.2.2 Parallel Interface (Reverse Channel)
Transmission mode . Adaptable comector q Synchronization
q
IEEE-P1284 nibble mode 57-30360 (Anphenol) or equivalent Refer to the IEEE-P1284 Specification Refer to the IEEE-P1284 Specification TILcompatible (IEEE-P1284 level 1 device) Refer to the specification
. Handshaking
q
Signal level
. Data transmission timing
Table 1-33 Pin Assignments for Reverse Channel
Pin No,
1 2 3 4 5 6 7 8 9
Signal Name
HostClk DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA7 DATA8 PtrClk PtrBusy I DataBit-3, 7 AckDataReq/ DataBit-2, 6 Xflag / DataBit-l, 5 HostBusy m DataAvail / DataBit-O, 4 1284-Active Logic H +5 v Chassis GND NC
Retl$yn@JD
19 20 21 22 23 24 25 26 27 28 29 28 28
30 30
In/Out
In In In In In In In In In out out out out In In out In out out --- ....-
Function Description
Host clock signal. Parallel input data to the printer bit O: LSB bit 1 bit 2 bit 3 bit 4 bit 5 bit 6 bit 7: MSB 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 O or 4 1284 active signal. This line is pulled up to + 5 V through 3.3K Q resistor. This line is pulled up to +5 V through 3.3K Q resistor. Chassis GND. Signal GND. Not connected.
10
11 12 13 14 31 32 36 18 35 17 16,33, 19-30 15,34
29
30
---.. ---.. -..
Rev.A
1-23
Product Description
q
LQ-2070 Service Manual
Extensibility request
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.
q
Device ID ESC/P2
Refer to the following descriptions: [00 H][32 H] . . . . . . MFG: EPSON, CMD: ESCPC2-00, MDL: LQ-2070, CLS: PRINTER
IBM2391 ph.Is [00 H][33H] . . . . . . MGF: EPSON, CMD: PRPXL24-01, MDL: LQ-2070, 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.
q
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 gcxx 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.
1-24
Rev.A
LQ-2070 Service Manual
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.
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Table 1-34 Paper Handling Sequence 1
Occurrence Print command sent Pause button pressed LF/FF button pressed Load/Eject button pressed I Micro Adjust ~button pressed Micro Adjust ~ button pressed Release lever set to Friction Result Continuous paper is loaded. Printer enters pause state. Continuous paper is loaded. Continuous paper is loaded. i I No operation. No operation. The paper path is changed for cut sheets.
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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 advanced to skiR 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. 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 nexl TOF position. The printer micro feeds paper forward. The printer micro feeds paper backward, The beeper sounds. The beeper sounds.
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LQ-2070 Service Manual
. Printer status
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 rxessed LF/FF button held down continuously Load / Eject button pressed
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Result Printer goes off or on line. Printer Derforms 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.
Load /Eject button pressed and the paper was 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.
q
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 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. 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.
Ignored.
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Product Description
Printer status
The rear PE sensor detects that paper is loaded in the rear paper path. Release lever position is set to Fri&ion.
Table 1-38 Paper Handling Sequence 5
Occurrence Pause button pressed LF/FF button pressed
LF/FF button held down continuously
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 ejeded forward (except with roll paper). The printer petfonns a form feed (roll paper). Paper is ejected forward (except with roll paper). The printer petforms a form feed (roll paper). The printer micro feeds paper forward. The printer micro feeds paper backward. The beeper sounds. The beeper sounds.
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.
. 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 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. Result Printer goes on or off line. Printer Derforms 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 fotward. The printer micro feeds paper backward. The beeper sounds. The beeper sounds.
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Product DescrhXion
LC?-2070 Service Manual
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
I
Friction
Paper Path
] P a p e r W i d t h M e a s u r e m e n t I Image Cut Function I Measured Measured Measured Executed (Only Copy Mode 2) Not Executed X 1 Not Executed % 1
Push Tractor (Rear / Front) Pull Tractor
*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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Product Description
1.4 Operating Instructions This section provides detailed information about the LQ-2070 control panel buttons and LEDs.
1.4.1 Control Panel Operations The printer control panel contains 6 non-lock type push buttons and 8 LEDs for various printer functions. The exterior view of the control panel is shown in the following figure.
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$ . . . . . . . . . . . . . . . . . . . ~comjen~ed, :.~..!!. ~ ;-. :;: ;::
u u u F~nt
~
Tear
.
o.ff.:/
~
`in w
:. : ::, : : : ::: :; . . . . . . . . . . . . . . . . . . , . . .:.. . . . . . . . . . . . . . ., .
:!:
r
F=F= I
Load / Eject : LF/FF
SS Paper Out Operate
o!
o
..................
m
Font . . . . . . . . . . . . . . . . . . -----~n u s D r a f t :0 s u Roman ~ u s 9 suns serif ; s u u Courier : = u s prestige ~~ ~ Script ; s s s others .........................
Condensed
. Tear. .Off . /. . Bii ..... .... ... a LED Off s LED On ,4, s LED Blinks
Figure 1-9 Control Panel
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Operation in normal mode
In normal mode, pressing panel buttons executes following functions:
Table 1-41 Operation in Normal Mode
I Function
Turns the printer on and off. Pause Load / Eject t--LF I FF . Alternates printing and non-printing states. . Enables the micro adiust function. when held down for 3 seconds.
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~
Loads or ejects paper . Micro feeds forward, when that function is enabled.
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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.
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t==
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Font
Selects font.
I Condensed
q Alternates condensed mode and non-condensed mode.
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LQ-2070 Service Manual
Operations at power on
Turning the printer on while pressing panel buttons executes the functions below:
Table 1-42 Operation at Power On Button
Load / Eject LQ self-test
Function
LF I FF Load I Eject and LF I FF
Condensed Font and Tear Off / Bin Pause Others Font & Condensed . Operation in default setting mode
Draft self-test
Data dump Default setting Clear EEPROM Bi-d adjustment Not available Quiet mode
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The buttons used in default setting mode areas follows:
Table 1-43 Operation at Default Setting Mode
Button
Font Tear Off / Bin Others Selects the menu. Changes the setting Not available
Function
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 Release Lever Micro Adjust Tear Off Bin Selection Condensed Font Selection Fatal Error On On On Blinks On Blinks ..-----Blinks
Paper Out Tear Off I Condensed Bin
-On Blinks --Blinks ---. --. Blinks .---.-.....Blinks --..--.-. -.. ... .-,. ----..Blinks
Font
..... -.. ... --... -.. --. . ... Blinks
Beeper
... 0 0 0
q
0 0 0 0 ---
q
0000
0
0 0 0 0
q
0 0 0 0
m 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. 1-30 Rev.A
LQ-2070 Service Manual
Product Description
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 %16 inch by pressing the LF/FF or Load/Eject button. The adjusted TOF position is saved to *e 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:
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Conditions required for the adjustment 1. The data buffer is empty and the printer is on line. 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.
2.
The TOF position can be adjusted under the following conditions:
. Adjustable area Micro adjust positions can be set within the following range from the top edge of the page:
4.2rnm- 8.5 mm ,8.5 mm + 1 inch (0.16" - 0.33", 0.33" + 24.5")
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 teax off mode can be selected in the default setting mode. After the paper is tom 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.
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Conditions required for the adjustment % Auto tear off function 0 Auto tear off has been set to ON in default setting mode. 0 The release lever has been set to Tractor. 0 The data buffer is empty, and the printer is on line. 0 More than 3 seconds have passed after tAe host computer finished transferring print data. % Manual tear off function 0 Auto tear off has been set to OFF in default setting mode. 0 The release lever has been set to Tractor. 0 The data buffer is empty and the printer is on line, or the printer is off line. 0 The Tear Off button was pressed under all the conditions listed above.
. Paper handling with the tear off position 0 Pressing the Pause button with the printer offline feeds the paperback to the TOF position for the next page and brings the printer back on line. 0 Pressing the Pause button with the printer on line feeds the paperback to the TOF position for the next page and takes the printer off line. 0 Pressing the LF /FF button feeds the paperback to the TOFposition for the next page and executes a line feed. 0 Pressing the Load /Eject button fee& the paperback to the TOF position for the next page and ejects paper backward. 0 Pressing the Pause button more than 3 seconds puts the printer in micro adjust mode, where you can adjust the tear off posit-ion by pressing the I-F /FF or Load/Eject button. 0 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: 0 The maximum number of printable lines (only oncutsheets from the CSF) 0 The pattern of characters shown in the figure below.
Roman -> ! "#$%&` ( )*+, -. /0 12345 6789: ; <- ?@ ABCDEFGH I JKLMNopQRs'flJWxyz[ \ ] " ` abcde fgh i j k lrnnopql ! II #$%&~ ( ) *+,-./0123456789:; <=> ?@ABCDEFGH I JKLMNOPQRSTU~XyZ [ \ 1"~abcde f gh i j k lmnOPqr: "#S%&' ( )*+, -. /01 23456789 : ; <=> ?@ ABCDEFGH 1 jKLMNOpQRSTUVWXy Z [ \ ] "--~ abcde f gh i .j k lrnnopq r.s 1 #$%&' ( )*+, -. / 0 1 2 3 4 5 6 7 8 9 : ;z=>?@-cDEFGHIJKLMNOpQRsTUmyZ[ \] `abcdefghi jklrnnopqrstl $%&' ( )*+, - . /012345 6789 : ; <=> ?@ ABCDEFGH I JKLMNOPQRSTUVWXYZ [ \ ] " `abcdefgh i j k 1 mnopqrstul %&$ ( )*+,-./0123456789:;<=> ?@ABCDEFGHI JKLMNOPQRSTUVWXYZI \ 1"yabcde f ghi Jk ~ mnoPqrs tuv~ &' ( ) *+, -./0 123456789: ; <=> ?@ABCDEFGHI JKLMNOPQRSTU~Xyz [ \ ] "' abcdef ghi jk lmnopqrs t uvw: Saris S e r i f ` ( )*+, - ./01 23456789: ; <=> ?@ ABCDE FGH I J KLMNOPQRSTUVWXYZ [ \ 1`-- ` abcde f gh i 1 k 1 mnOPq r St uvwx ! ( )·+,-./0123456789 : ; c=> ?.ABCDE FGH I J K LMNOPQRSTUVWXY Z [ \ 1`-- abc de f gh i 1 k 1 mnoPcl r St uvwx Y; ) q + ,-. /01 23456789: ; :=>?eABCDEFGli 1 JKLMNOPQRSTUVWx YZ [ \ ] - ` abcdef gh i j k 1 mnopq rst uvwx YZ q + ,- ,/@1234567B9: ;<=>?eABcDEFGHIJKLMNOPQRSTUVWXYZ[\]"iabcdef9hi jklmnopqrstuvwxyz{ .<=>?.ABcDEFGHIJKLMNOP(2RSTUVWXYZ[\] `'abcdefghi iklmnopqrstuvwxyz{ j +,-./0123456789: , . , - . / 0 1 2 3 4 5 6 7 8 9 : , <=>?oABCDEFGHIJKLMNOPQRSTUVWXYZ[\] "'abcdefghi jklmnopqrstuvwxyz (;)' -./01234~6~89: ;<=>?eABcDEFGHIJKLMNoPoRsTuvwxYZ[\] `-' abcdefghi jklmnopqrstuvwxyz( ~}-~
Figure l-lOSelf -test Printout
1.4.6. Hexadecimal Dump Function
Pressingthe Load/Ejectand LF/FFbuttons whiletumingon theprinterputs theprinterin hexadecimaldump mode.In thismode,datareceivedisprinted outinhexadecimalforrna~along with the corresponding ASCII characters. The function isuseful tocheckdata received from the host. Ifareceivedcodeisnot aprintableASCIIcharacte~ the printer prints aperiod(.) inthe ASCIIcolumn.Whenreceived dataremainsinthebuffe~ thatdataisprintedbypressingthe Pausebutton.
Hex
Dump .@. (G. ...UU. ...U .. (C. .X.. (C..... ..+0. . . . . . . . . . . . ...U.U.U.U.U.U.U .u.u.u.u.ij.u.u.u .U.u.u.u.u.u.u.u .Li.u.ij.u.a..z a.. .L.aE...~.~.. . E6 ..-. ~-~.--L~-~ ..
1B401B2847o1OO 01 18285501oooA1B 5,5 01 IB 28 43 02 00 78 OF IB 28 63 04 00 00 00 00 00 16 2B 30 OA 09 OA OA OA OA OA IB 2E 01 14 14 18 00 06 81 00 81 00 81 00 81 00 81 00 81 00 81 00 81 00 81 00 81 00 81 00 81 00 81 00 81 00 00 81 00 81 00 81 00 81 00 81 00 81 00 81 00 81 00 81 00 81 00 81 00 81 00 ES 00 02 3F FF EO 00 03 03 CO 01 EO FE 00 02 03 80 IE FE 00 02 00 OE FA 00 07 03 CO 01 EO 00 00 OF CO 81
81 FE IC 00
Figure l-n Hexadecimal Printout
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Product Description
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, Condensed, and Tear Off/ Bin) and watch six LEDs (Condensed: 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 iterns below to the factory settings in the right-hand column.
Table 1-45 EEPROM Initialization Settings
Setting
Font Condensed Character Table Page Format ( Tractor Rear/ Front) Page Format (Friction , CSF Bin 1 / Bin 2, Manual Feed Rear/ Front ) Print Direction Auto LF Auto Tear-Off l-inch Skip High Speed Draft Input Buffer BDC-ST Reply l/F Selection Auto l/F Wait Time Software Slashed Zero Buzzer Auto CR ( IBM Mode) Adjust Tear-Off Position Paper Conditions
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I Roman 10 CPI PC437
Factory Default
Page Length: 11 inches TOF Position: 8.5 mm (0.333 inches) Bottom Margin : 11 inches Page Length: TOF Position: Bottom Margin: Bi-d 22 inch 8.5 mm (0.333 inch) 22 inches
off
off
off
On On
off
Auto l/F Mode 10 sec. ESCIP2 off On
off
O inch Friction: Bin 1, Tractor: Tear-Off: Status Off
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LQ-2070 Service Manual
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. Draft mode
2. Draft
copy mode
3. LQmode For instructions on performing the adjustment, see Chapter 4.
1.4.10 Quiet Mode Function
Pressing the Font button while turning on the printer puts the printer in quiet mode. In this quiet mode, the printing speed can be 1/2 slower than usual speed. This function does not remain after the printer is turned off.
1.5 Initialization 1.5.1 Software Initialization This initialization is activated by the control code ESC@?. This initialization:
0 Clears unprinted data. 0 Resets the printer's setting defaults.
1.5.2 Operation Initialization This initialization is activated by receipt of the ~ signal (negative pulse). This in