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EPSON TERMINAL PRINTER
LG1-570/lo7cJ
L
4000566 REV.-B .
NOTICE " All rights reserved. Reproduction of any part of this manual in any from whatsoever 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 1991 by SEIKO EPSON CORPORATION
Nagano, Japan
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REV.-A
PRECAUTIONS
Precautionary notations throughout the text are categorized relative to 1) personal injury, and 2) damage to equipment: DANGER Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures preceded by a DANGER heading. WARNING Signals a precaution which, if ignored, could result in damage to equipment.
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 B& PERFORMED ON THE UNIT BY PERSONS UNFAMILIAR WITH BASIC SAFETY MEASURES AS DICTATED FOR ALL ELECTRONICS TECHNICIANS IN THEIR LINE OF WORK. 3. WHEN PERFORMING TESTING AS DICTATED WITHIN THIS MANUAL, DO NOT CONNECT THE UNIT TO A POWER SOURCE UNTIL 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/RATING PLATE. IF THE EPSON PRODUCT HAS A PRIMARY-AC RATING DIFFERENT FROM THE AVAILABLE POWER SOURCE, DO NOT CONNECT IT TO THE POWER SOURCE. 3. ALWAYS VERIFY THAT THE EPSON PRODUCT HAS BEEN DISCONNECTED FROM THE POWER SOURCE BEFORE REMOVI"NG OR REPLACING PRINTED CIRCUIT BOARDS AND/OR INDIVIDUAL CHIPS. 4. IN ORDER TO PROTECT SENSITIVE /.LP 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 RECOMMENDED BY THE MANUFACTURER; INTRODUCTION OF SECOND-SOURCE ICS OR OTHER NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE EPSON WARRANTY.
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REV.-B
PREFACE
This manual describes functions, theory of electrical and mechanical operations, maintenance, and repair of the LQ-570/l 070. 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 Provides a general product overview, lists specifications, and illustrates the main components of the printer. Chapter 2 Chapter 3 Describes the theory of printer operation. Includes a step-by-step guide for product disassembly and assembly. Chapter 4 Chapter 5 Chapter 6 Includes a step-by-step guide for adjustment. Provides Epson-approved techniques for troubleshooting. Describes preventive maintenance techniques and lists lubricants and adhesives required to service the equipment.
q
The contents of this manual are subject to change without notice.
- iv -
REVISION SHEET
REVISON A B DATE ISSUED June 20, 1991 Sept. 6, 1991 1st issue Added information for the LQ-1 070: l-i, l-ii, 1-1 - 1-8, 1-10, 1-11, 1-24, 1-26 - 1-28 2-i, 2-ii, 2-1 2-11, 2 - 1 3 - 2-15, 2-17, 2-18 3-i, 3-ii, 3-5 - 3-20 4-i, 4-1 - 4-4, 4-6 5-i, 5-1 - 5-5, 5-9, 5-11 - 5-19 6-i, 6-1, 6-4 A-1, A-ii, A-1 - A-1 5, A-17 - A-1 9, A-22, A-23 CHANGE DOCUMENT
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REV.-A
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
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REV.-B
CHAPTER 1 GENERAL DESCRIPTION
1.1
1.2 .... FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1 . .... S P E C I F I C A T I O N S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3 .. 1 . 2 . 1 H a r d w a r e S p e c i f i c a t i o n s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3 .. 1 . 2 . 2 F i r m w a r e S p e c i f i c a t i o n s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9 1.3 ... I N T E R F A C E O V E R V I E W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-14 . . 1 . 3 . 1 P a r a l l e l I n t e r f a c e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1. - 1 4 1.4 1.5 .... CONTROL PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-16 . DIP SWITCHES AND JUMPER SETTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-18 ... 1 . 5 . 1 D I P S w i t c h S e t t i n g s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 ... 1 . 5 . 2 J u m p e r S e t t i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-19 1.6 OPERATING 1.6.1 1.6.2 1.6.3 1.6.4 1.6.5 1.6.6 1.6.7 1.6.8 1.6.9 .. I N S T R U C T I O N S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-20
.... Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-20 .. Hexadecimal Dump Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20 Paper-out Detection and Forms Override Function . . . . . . . 1-21 ... Error Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-21 ... Buzzer Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-21 Printer ... Initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21
... Default Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-22 . Sheet Loading and Sheet Ejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-22 ... Tear-off Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-23
.. 1.6.10 LEVER, G, ADJUST . . . . . . . . . . . . . . .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24 1.6.11 printer Protection for Heavy-Duty Printing . . . . . . . . . . . . . . . . . . . . . 1-25 1.7 ... M A I N C O M P O N E N T S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-26 1.7.1 C062 MAIN Board (Main Control Circuit Board) . . . . . . . . . . . 1-26 1.7.2 C062 PNL Board (Control Panel Circuit Board) ............. 1-27 1.7.3 C062 PSB/PSE Board (Power SupPlY Circuit Board) . . . 1-27 . 1.7.4 Printer Mechanism (M-5 E10/M-5E60) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 -28 1.7.5 .... H o u s i n g . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-28
1 -i
REV.-B
LIST OF FIGURES
Figure 1-1. Figure 1-2. Figure 1-3. Figure 1-4. Figure 1-5. Figure 1-6. Figure 1-7. Figure 1-8. Figure 1-9. Exterior View of theLQ-570/1070 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Pin ... Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Printable Area for Cut Sheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6. .. Printable Area for Continuous Sheets . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6 Character ... Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
Data Transmission Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14 . Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1-16 .. ... Self-Test Printout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20 . Hexadecimal Dump Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-20
... Figure l-10. Lever Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-24 Figure 1-11. LQ-570/l 070 Component Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26 Figure 1-12. C062 MAIN Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26 Figure 1-13. C062 PNL Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .1-27 .. Figure 1-14. C062 PSB/PSE Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-27 Figure 1-15. Model-5El O/5E60 Printer Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . .1-28 .... Figure 1-16. Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-28
LIST OF TABLES
Table 1-1. Table 1-2. Table 1-3. Table l-4. Interface Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .1-1 ... Optional Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2 . Specifications for Cut Sheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4 Specifications for Cut Sheets . (Carbonless Duplicating Paper) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5 Table 1-5. Table 1-6. Table l-7. Table 1-8. Table 1-9. Specifications for Continuous Sheets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 -5 .... Envelopes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5 ... Label Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 ... Printing (Text Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10 Printing (Bit Image Mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .1-11
Table 1-10. Character Matrix and Character Size. . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12 ... Table 1-11. Connector Pin Assignments and Signal Functions . . . . . . . 1-14 . Table 1-12. Settings for DIP Switch 1 (SW1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 Table 1-13. Settings for DIP Switch 2 (SW2).......... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18 Table 1-14. International Character Set Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19 .... Table 1-15. Page Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19 Table l-16. Lever Positions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ......... 1-24 1 -ii
REV.-B
1.1 FEATURES
The LQ-570/l 070 are small, light-weight, low-cost, printers with advanced paper handling that is compatible with the LQ-5 10/550/1010. The printer's main features are as follows:
q Use of ESC/P 2 control codes
Ability to print multi-point fonts Ability to receive and print raster graphic images Compatibility with the LQ/SQ series available on the market
q Printing speeds: 225 characters per second (CPS) (high-speed draft, 10 characters per inch (cpi))
252 CPS (draft, 12 cpi) 210 CPS (draft, 10 cpi) 8 4 CPS (LQ, 12 cpi) 6 4 cps (LQ, 10 cpi)
q Optional interface card q Clear, easy-to-read printing with standard EPSON fonts q Multiple fonts resident in the printer
9 LQ fonts (Roman, Saris Seri~, Courier, Prestige, Script, OCR-B, Script C, Orator, Orator-S) 1 draft font
q Control panel switch selection of fonts, condensed, and cut-sheet feeder (CSF) bin q Optional tractor unit for push-pull tractor feed q Flexible handling of continuous paper
Three ways to insert continuous paper (front/bottom/rear path) Auto backout and auto loading (rear insertion) Use of continuous paper without removing CSF Attachment of standard tractor unit in either of two positions (push/pull)
q Easy handling of cut sheets with the optional cut-sheet feeder
Two ways to insert cut sheets (front/top) Auto loading The LQ-570/l 070 are equipped with the standard EPSON 8-bit parallel interface. Various interface ( options ensure compatibility with a wide variety of computers. Table 1-1 lists the interface options, Table 1-2 lists the optional units available for the LQ-570/l 070, and Figure 1-1 shows an exterior view of the LQ-570/l 070. . Table 1-1. Interface Options Model C82305 C82306 C82307 C82308 C82310 C82313 Description Serial interface card (inch screw) Serial interface card (mini screw) 32KB serial interface card (inch screw) 32KB serial interface card (mini screw) 32KB parallel interface card 32KB IEEE-488 interface card
Printing is not possible for the following baud rates : 1800, 200, 134.5, 110, 75 bps. NOTES: Refer to the "Optional Interface Technical Manual" for details. The asterisks (') in the table above represent the last digit of the part numbers. This digit varies, depending on the country. For instance, in the U.S. the last digit is 1. 1-1
REV.-B Table 1-2. Optional Units Description Single-bin cut-sheet feeder (80-column) High-capacity cut-sheet feeder (80-column) SingI-bin cut sheet feeder (1 36-column) High capacity cut sheet feeder (1 36-column) Tractor unit (80-column) Tractor unit (1 36-column) Fabric ribbon cartridge (80-column) Fabric ribbon cartridge (1 36-column)
1
Model C80637* C80638* C80639* C80640* C80019* C80022* 7753 7754 7768 7770
Film ribbon cartridge (80-columd Film ribbon cartridge (1 36-column)
Note: When a part number in the table above is followed by an asterisk ('), the last digit of the number varies, depending on the country. For example, in the U. S., the model number for a single-bin cut-sheet feeder (80-column) is C80@.
3'7
(LQ-570)
(LQ-107O) Figure 1-1. Exterior View of the LQ-570/1070
1-2
REV.-B
1.2 SPECIFICATIONS
This section provides specifications for the LQ-570/l 070 printer.
1.2.1 Hardware Specifications
Printing method Pin configuration Serial, impact, dot matrix 24 wires (12 X 2 staggered, diameter 0.2 mm)
Wires 1 Wires
f~ II 1, I
ii
2
-
- - - - - - ' $
j+--------
- -
1/90"
- 1 _-
~ - - - - - $
j
+L____ ~ ~ /
!!''0'" 1/90" `-
\ ~ +;------I // 1: /+ w
1/60"
i i i
1 /60"
Figure 1-2. Pin Configuration Feeding methods Friction feed (front/top) Push tractor feed (rear) Pull tractor feed (front/bottom) Push-pull tractor feed (with optional tractor) (rear) Line spacing Paper insertion Paper-feed speed 1/6 inch, 1/8, or programmable in units of 1/360 i n c h Friction feed Tractor feed Front or rear side Front, bottom, or rear side 77.6 msec.(1/6-inch feed) 2.2 inches per second (ips) (continuous) 77.6 msec (1/6-inch feed) 2.2 ips (continuous) Tractor 77.6 msec (1/6-inch feed) 2.2 ips (continuous) NOTE: The points below provide precautions for handling paper. 1. Friction feed (release lever in FRICTION POSITION). Paper must be loaded from the front or top entrance. Do not use continuous paper. Do not perform any reverse paper feeds within the top 8.5 mm (.34 in.), bottom 22 mm (.87 in.) (top entrance), or bottom 40.2mm (1.6 in.) (front entrance) area. Do not perform reverse feeds greater than 1/6 inch after a paper end has been detected. 1-3
Friction without CSF
.
Friction with CSF
REV.-B
q Use the paper tension unit. q Do not use multi-part cut-sheet forms, except with front insertion. q Do not perform reverse feeds greater than 1/6 inch when using envelopes.
2. Push tractor feed (release lever in REAR PUSH POSITION). Paper must be loaded from the rear entrance. Release the friction-feed mechanism. Multi-part forms must be spot pasted beyond the perforation between the tractor holes. Paper for multiple copies must be carbonless multi-part paper. Use the paper tension unit. Do not perform reverse feeds greater than 4/15 inch. Since accuracy of paper feed cannot be assured after the paper end has been detected, please do not perform reverse feeds after detection of a paper end. 3. Push-pull tractor feed (release lever in REAR PUSH POSITION). Paper must be loaded from the front, rear, or bottom entrance. Release the friction-feed mechanism. Remove the paper tension unit and attach the pull tractor unit. Ensure that there is no slack in the paper between the platen and the pull tractor. Precisely adjust the horizontal position of the pull tractor and push tractor sprockets. Paper for multiple copies must be spot pasted beyond the perforation between the tractor holes. Paper for copies must be a carbonless multi-part paper. Do not perform reverse feeds greater than 4/15 inch. Do not perform reverse feeds after the paper end has been detected. 4. Pull tractor feed (release lever in PULL POSITION).
q Paper must be loaded from the front or rear entrance. q Release the friction-feed mechanism. q Remove the paper tension unit and attach the pull tractor unit. q Insert the paper from either front or bottom. q Paper for multiple copies must be spot pasted beyond the perforation between the tractor holes. q Paper for copies must be a carbonless multi-part paper. q Do not perform reverse feeds.
Paper specifications See tables 1-3, 1-4, 1-5, 1-6, and 1-7 Table 1-3. S~ecifications for Cut Sheets (One-Part Paper) Width 148 mm to 257 ('420) mm (5.8 in. to 10.1 (* 16.5) in.) (top insertion) 182 mm to 257 (*364) mm (7.2 in. to 10.1 (* 16.5) in.) (front insertion) 364 mm (1 4.3 in.), maximum 0.065 mm to 0.14 mm (0.0025 in. to 0.0055 in.) 14 lb. to 24 lb. (52.3 g/m2 to 90 g/m2) Standard paper (photocopier paper, etc.) Recycled paper (at normal temperatures) (*136-column)
Length Thickness Weight Quality
1-4
REV.-B Table 1-4. Specifications for Cut Sheets (Carbonless Duplicating Paper) Width Length Thickness Weight Quality Copies 182 mm to 216 ('364) mm (7.2 in. to 8.5 (* 14.3) in.) 257 mm to 297 mm (10.1 in. to 11.7 in.) 0.065 mm to 0.14 mm (0.0025 in. to 0.0055 in.) - single sheet 0.12 mm to 0.32 mm (0.0047 in. to 0.012 in.) - total 17 lb. to 24 lb. (52.3 g/m2 to 90 g/m2) - single sheet 12 lb. to 15 lb. (40 g/m2 to 58 g\m2) - each Carbonless duplicating paper 4 sheets (1 original and 3 copies) (*136-column Table 1-5. Specifications for Continuous Paper Width Thickness Weight Quality Copies 101 mm to 254 ("406) mm (4.0 in. to 10.0 (* 16) in.) 0.065 mm to 0.10 mm (0.0025 in. to 0.0039 in.) - single sheet 0.065 mm to 0.32 mm (0.0025 in. to 0.012 in.) -total 14 lb. to 22 lb. (52.3 g\m' to 82 g/m2) - single sheet 12 lb. to 15 lb. (40 g/m2 to 58 g/m2) - each Standard paper or carbonless duplicating paper Recycled paper (at normal temperatures) 4 sheets (1 original and 3 copies) (*:1 36-column) Table 1-6. Envelopes Size Thickness No. 6= 166 mm X 92 mm No. 10= 240 mm X 104 mm 0.16 mm to 0.52 mm (0.0063 in. to 0.0197 in.) Differences in thickness within the printing area must be less than 0.25 mm (0.0098 in.) 12 lb. to 24 lb. (40 g/m2 to 91 g/m2) Bond paper, standard paper, airmail Not available
Weight Quality Copies NOTES: q
Printing on envelopes is available only at normal temperatures and only using top insertion.
q Keep the longer side of the envelope horizontal during insertion. q Place the left edge of a No. 6 envelope at"the sheet guide setting mark.
Table 1-7. Label Specifications Label size 2 1/2 in. X 15/16 in. 4 in. X 15/16 in. " 4 in. X 1 7/16 in. Not available 0.07 mm to 0.09 mm (0.0028 in. to 0.0031 in.) - base paper 0.16 mm to 0.19 mm (0.0063 in. to 0.0075 in.) -total
Copies Thickness
NOTES: q
Printing on labels is available only at normal temperatures.
q Labels must be of the fanfold type. q Labels with pressure sensitive paper must be spot pasted beyond the perforation between
the tractor holes. The total thickness must be less than or equal to 0.3 mm (0.01 18 in.). Labels can be printed out only if the temperature is between 5 and 35 degrees C (41 and 95 degrees F) and humidity is between 10 % and 80 % RH.
q Examples of labels AVERY CONTINUOUS FORM LABELS
AVERY MINI-LINE LABELS
q Labels must be used with the pull tractor (front or bottom). q Do not perform reverse feeds.
1-5
REV.-B Printable area See figures 1-3, 1-4, and 1-5
- 257 mm (5.8 - 10. 1") 148 - 257 (x 420) mm (5.8 - 10. 1" {x 16.5)) f r o n t i n s e r t i o n 1 8 2 - 257 mm (7.2 - 10 1") 182 - 257 (* 364) mm (7.2 - 10. 1" (x 14.3'")) .,
top insertion 148
*
7
.,, Printable
area max. 203.2 mm (8 in.) -1 ) -1
4 ~8.5 mm ` `: " t 364mm ; (14.3") max. :j /, F ~'~~~' 7
*
.JI
J&L
,,,mm (0.53") or more
.A
v
Y
(*
136-column)
(80-column): +1) 3.0 mm (O. 12 in.) or more when paper width is less than 229 mm (9 in.). 24 mm (0.9 in.)(top insertion)\26 mm (1.0 in.)(front insertion) or more when paper width is 229 mm (9.0 in.) to 257 mm (10.1 in.). I (136-column:) 3.0 mm (O. 12 in.) or more when paper width is less than 392 mm (1 5.4 in.). 29 mm (1.14 in.) (top insertion) /31 mm ( 1.22 in.) (front insertion) or more when paper width is 392 mm (1 5.4 in.) to 420 mm (1 6.4 in.). Paper-feed accuracy cannot be assured within 22 mm (0.87 in.) from the bottom edge of paper (top insertion). Paper-feed accutacy (front insertion). Paper-feed accuracy cannot be assured within 22 mm (0.87 in.) from the top edge of paper. Figure 1-3. Printable Area for Cut Sheets
L 101.254 mm (4 10") 101.254 x406) (4. 10" (x 16)) J
I*?
cannot be assured within 40.2 mm (1 .58 in.) from the bottom edge of paper
* 0 0 0
0 0 0 0 0
1*
Printable area
1'
Printable area
1
Max. 203.2 mm (8"): 80 column Max. 345.4 mm(i 3.6"): 136 cdum
10
0 0 0 0 0
9 mm (O 35") :
;r:'r;,3~,) - : 0 or more 0 0 c t
Printable area : o 0 0 0
J
-
L
0 0 0 0
0
0
0 0 0 0
I
(' 136-column)
Figure 1-4. Printable Area for Continuous Sheets
1-6
REV.-B (80-column):
q
1) 13 mm (0.51 in.) or more when a paper width of 101 mm (4 in.) to 241 mm (9.5 in.) is used. 24 mm (0.9 in.)(rear insertion)\ 26 mm (1.0 in.)(front/bottom insertion) or more when a paper width of 254 mm (10 in.) is used.
(1 36-column): 13 mm (0.51 in.) or more when a paper width of 101 mm to 401.3 mm (4 in. to 15.8 in.) is used. 15 mm or more when a paper width of 381 mm to 406 mm (15 in. to 16 in.) is used. 13 mm (rear insertion) (0.5 1 in.) /1 7 mm (front/bottom insertion) (0.67 in.) is used. ( 136-column). Ink ribbon Type #7753 black ribbon cartridge (80-column) #7768 film ribbon cartridge (80-column) #7754 black ribbon cartridge (1 36-column) #7770 film ribbon cartridge (1 36-column) Color Black Life 2 million characters at 48 dots/character (black ribbon) (80-column) 0.2 million characters at 48 dots/character (film ribbon) (136-column) 0.3 million characters at 48 dots/character (film ribbon) Dimensions of ribbon cartridge Fabric Type: (80-column): Film Type: (80-column): Reliability Life of printhead Safety approvals 293 mm (W) X 34 mm (H) X 72 mm (D) (136-column): 468.5 mm (W) X 34 mm (H) X 72 mm (D) Mean cycles between failures (MCBF) 3 million lines (excluding printhead) Mean time between failures (MTBF) 4000 power on hours (POH) (25% duty) 200 million strokes (black ribbon) 100 million strokes (film ribbon) Safety standards UL1 950 with D3 (U.S. version) CSA22.2#220 EN 60950 (TUV) (European version) Radio frequency interference (RFI) FCC class B (U.S. version) VDE0871 (self-certification) (European version) Electrical specifications 120 V version Rated voltage Input voltage range Rated frequency Input frequency Rated current Power consumption insulation resistance 120 VAC 103.5 to 132 VAC 50 to 60 Hz 49.5 to 60.5 Hz 2.0 A Approx. 33 W (during a selftest in draft mode, 10 cpi) 10 megohms, minimum (at 500 VDC between AC line and chassis). Dielectric strength 1000 VAC rms for 1 minute or 1200 VAC rms for 1 second (between AC line and chassis)
1-7
293 mm (W) X 34 mm (H) X 72 mm (D)
(136-column): 468.3 mm (W) X 34 mm (H) X 72 mm (D)
REV.-B 220 to 240 V version Rated voltage Input voltage range Rated frequency Input frequency 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 1.0 A Approx. 33 W (during a self-test in draft mode, 10 cpi) 10 megohms, minimum (at 500 VDC between AC line and chassis). 1250 VAC rms 1 minute or 1500 VAC rms 1 second (between AC line and chassis)
Environmental conditions
Temperature range 5 to 35 degrees C (41 to 95 degrees F) - o p e r a t i n g 30 to 60 degrees C (22 to 140 degrees F) in shipment container Humidity 10 to 80 % RH - operating 5 to 85 % RH storage Resistance to shock 1 G, within 1 ms operating 2 G, within 1 ms - storage Resistance to vibration 0.25 G, 55 Hz, max. - operating 0.50 G, 55 Hz, max. - storage 6.1 kg, approx. (13.5 Ibs., approx.) 17.4 in. (width) X 14.7 in. (depth) X 6 in. (height) (136-column): Weight 8.4 kg, approx. (1 8.6 Ibs., approx.) 24.4 in. (width X 14.7 (depth) X 6 in. (height) Dimension 609 mm (width) X 368 mm (depth)X 151 mm (height)
Physical specifications (80-column): Weight Dimensions 434 mm (width) X 368 mm (depth) X 151 mm (height)
1-8
REV.-A
1.2.2 Firmware Specifications
Control code Printing direction Input data buffer Character code Character tables Fonts and pitches Bit-map fonts EPSON Roman EPSON Courier EPSON Prestige EPSON Script EPSON Script C OCR-B EPSON Orator EPSON Draft Scalable fonts Printing modes EPSON Roman 10, 12, 15, proportional 10, 12, 15 10, 12 10, 12 proportional 10 10 10, 12, 15 8 pt to 32 pt EPSON Saris Serif 10, 12, 15, proportional ESC/PTM level ESC/P 2 (EPSON standard code for printers) Bidirectional with logic seeking 8KB (when SW 1-7 is OFF) OKB (when SW 1-7 is ON) 8 bits Italic character table, PC 437, PC 850, PC 860, PC 863, PC 865 (PC indicates character table for personal computer)
EPSON Orator-S 10
EPSON Saris Serif 8 pt to 32 pt Selection and mixture of the following modes are allowed, excluding 15 cpi condensed mode: O Print quality (draft/letter quality) O Character pitch (10, 12, 15, or proportional) O Condensed O Double-width O Double-height O Emphasized O Double-strike O Italic O Underlined O Double-underlin~d O Overscore O Strike-through O Outline O Shadow
1-9
REV.-B NOTES: High-speed draft is valid if the printer status is as follows:
q High-speed draft is selected by DIP switch. q Emphasized character mode is not selected. q Condensed character mode is not selected. q Draft is selected. q No D/L (download) characters are sent to the printer, q The horizontal dot space of characters is not set. q No bit image is sent to the printer. q Super/subscript is not selected.
(The printer switches back into normal mode to print emphasized, condensed, or download characters and bit images.) Printing speed Printing columns Character matrix Character size See tables 1-8 and 1-9. See Table 1-8. See Table 1-10. See Table 1-10.
Table 1-8. Printing (Text Mode) T Print Pitch 10 0 1 12 0 1 15 0 1 Condensed Printable Columns 80 (* 136) 137 ("233) 96 (* 164) 160 (*272) 120("204) Character Pitch (cpi) 10 17.1 12 20 15 Invalid Printing Speed (CPS) Draft 210 180 252 210 315 LQ 70 120 84 140 105 HSD 225 -- -- -- --
I
cpi: Cps: LQ: HSD: characters per inch characters per second letter quality high-speed draft
(* 136-column)
1-10
REV.-B Table 1-9. Printing (Bit Image Mode) Pins I 8 8 Bit Image Printing Mode Single-density Dual-density I D e n s i t y (dpi) 60 120 } Printable Dots 480 (*8 16) 960 (" 1632) I 960 ("1632) I ( I Printing Speed (ips) 21.0 10.5 21.0 10.5 10.5 I 14.0 21.0 10.5 14.0 7.0
I
8 I Double-speed, dual-density 8 8 Quadruple-density CRT graphics
I I
120 240 80 90 60 120 90 180 360
1920 (*3264) 640 (" 1088) I 720 ("1224)
8 I CRT graphics II 24 24 24 24 24 Single-density Dual-density CRT graphics II Triple-density Hex-density
480 (*8 16) 960 (" 1632) 720 ("224) 1440 ("2448) 2880 (*4896)
7.0 (* 136-column)
dpi: ips:
dots per inch inches per second
1-11
REV.-A Table 1-10. Character Matrix and Character Size Printing Mode High-speed draft, 10 pitch Draft, 10 pitch Draft, 12 pitch
I
I
Face
Matrix
I
HDD I C h a r a c t e r S i z e I Unit ESC sp 90 120 120 2.0 x 3.1 1.9 x 3.1 1.9 x 3.1
I I
7 x 22 9 x 22 9 x 22
I
-- 120 120 120 120 120 180 180 180 180
Draft, 15 pitch Draft, 10 pitch, condensed Draft, 12 pitch, condensed LQ, 10 pitch LQ, 12 pitch LQ, 15 pitch LQ, 10 pitch, condensed LQ, 12 pitch, condensed LQ, proportional LQ, proportional, condensed LQ, proportional, super/subscript LQ, proportional, super/subscript, condensed
7 X 16 -- -- 31 x 22 27 X 22 22 X 16 --
120 240 240 360 360 360 360
1.0 X 2.3 -- -- 2.2 x 3.1 1.9 x 3.1 1.6 X 2.3 -- 360 I I
l
Max. 37 X 22 Min. 18 X 22 -- -- Max. 28 X 16 Min. 12 X 16
I
360 360 360 360 360 360
180 180 180 180
2.6 X 3.1 1.0 x 3.1 -- -- 1.8 X 2.3 0.7 X 2.3
I
--
--
I
360 360
I
--
--
I
180
NOTES: . HDD is horizontal dot density in dots per inch.
q Face matrix and character size indicate the size of the maximum character. This value is
dependent on paper, ribbon, etc.
q Unit ESC sp (which also can be sent as unit, followed by the character string CHR(&h20)),
indicates the minimum length to be added to the right of the character specified with the ESC sp control code.
q " - " indicates that the character matrix is reshaped by printer firmware. Character width
becomes half of the noncondensed character width.
1-12
REV.-A (Typical draft character)
(Typical LQ character)
1
2 3 4 : 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 I
< Face width 9 dots
1
Ascender area L E F T s P A c E R I G H T s P A c E 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Ascender area L E F T s P A c E R I G H T s P A c E
!Descender area . > Character width (CW)
12 dots (10 CPI) 120 DPI 15 dots (12 CPI) 180 DPI 16 dots (15 CPI) 240 DPI
I Descender area
<
Face width
9
29 dots (Typical LQ, excluding 15 pitch) 15 dots for 15 pitch and condensed La
+
36 dots (10 CPI)'360 DPI 30 dots (12 CPI) 360 DPI 24 dots (15 CPI) 360 DPI 21 dots (condensed 10 CPI) 360 DPI 18 dots (condensed 12 CPI) 360 DPI
14 dots (condensed 10 CPI) 240 DPI 12 dots (condensed 12 CPI) 240 DPI
(Subscript character)
. -- 1
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 L E F T s P
A
(Subscript character)
--
R I G H T s P A c E
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
L E F T s P A c E
R I G H T s P A c E
c E
-- Figure 1-5. Character Matrix 1-13
--
REV.-A
1.3 INTERFACE OVERVIEW
The printer has a parallel interface with the specifications described below.
1.3.1 Parallel Interface
Specifications for the 8-bit parallel interface are as follows: Data format Synchronization Handshaking Signal level Adaptable connector Data transmission timing 8-bit parallel STROBE signal BUSY and ACKNLG signal TTL-compatible 57-30360 (Amphenol) See Figure 1-6. or equivalent
BUSY
{
ACKNLG DATA STROBE o.5/is min. o.5Lls min. 0.5/S min.
~;
5/S typ.
5/.fs typ. `
Figure 1-6. Data Transmission Timing Table 1-11 shows the connector pin assignments and signal functions of the 8-bit parallel interface. Table 1-11. Connector Pin Assignments and Signal Functions Pin No. 1 Signal Name STROBE Return Pin No. 19 Dir. IN Functional Description STROBE pulse to read the input data. Pulse width must be more than 0.5ps. Input data is latched at falling edge of this signal. Parallel input data to the printer. HIGH level means data 1. LOW level means data O.
2 3 4 5 6 7 8 9 10
DATA 1 DATA 2 DATA 3 DATA 4 DATA 5 DATA 6 DATA 7 DATA 8 ACKNLG
20 21 22 23 24 25 26 27 28
IN IN IN IN IN IN IN IN OUT
This pulse indicates data has been received and the printer is ready to accept more data. Pulse width is approximately 11 Ks. HIGH indicates the printer cannot accept more data. HIGH indicates paper out. This signal is effective only when the ERROR signal is LOW. Always HIGH output. (Pulled up to +5 Vthrough a 3.3K ohm resistor.)
11 12 13
BUSY PE SLCT
29 30 --
OUT OUT OUT
1-14
Table 1-11. Connector Pin Assignments and Signal Functions (Cont.) Pin No. 14 Signal Name AUTO FEED-XT Return Pin No. -- Dir. IN Functional Description If LOW when the printer is initialized, the printer automatically performs a line feed upon input of the CR code (Auto LF). Not used. GND Chassis GND -- -- -- Ground for twisted-pair grounding. Chassis ground level of printer. Not used. GND I NIT ERROR GND -- 16 IN OUT -- Ground for twisted-pair grounding. Pulse (width: 50ws, min., active LOW) input for printer initialization. LOW indicates an error has occurred in the printer. Ground for twisted-pair grounding. Not used. OUT SLCT-IN -- IN Always HIGH. (Pulled up to +5V through 3.3K ohm resistor.) DC l\DC3 control is disabled.
15 16 17 18 19 to 30 31 32 33 34 35 36
NOTES: 1. "Dir." indicates the direction of the signal flow as viewed from the printer. 2. "Return Pin No." denotes a twisted-pair return line. 3. The cable used must be shielded to prevent noise. 4. All interface conditions are based on TTL levels. Both the rise and fall times of all signals must be less than 0.21.Ls. 5. The AUTOFEED-XT signal can be set to LOW by DIP switch 2-4. 6. The SELECT-IN signal can be set to LOW by jumper 3. 7. Printing tests, including those of the interface circuits, can be performed without using external equipment by setting DATA 1- DATA 8 pins to the STROBE signal.
1-15
REV.-A
1.4 CONTROL PANEL
On the control panel are: a power button (labeled OPERATE), 7 non-lock type buttons, and 19 indicators.
Figure 1-7. Control Panel BUTTONS (1) OPERATE Button This button turns on the power supply to the printer. (2) PAUSE Button This button controls printer action. Pressing the button toggles the printer between PAUSE condition (no printing, no paper feeding, and not accepting data) and RUNNING. This button is also used in conjunction with the ALT button as a buffer clear to clear the input buffer and perform software initialization, as if ESC @ had been received. (3) LINE FEED/FORM FEED Button Pressing this button performs a line feed, and holding down the button performs a form feed, irrespective of the PAUSE/RUNNING condition. This button is also used in conjunction with the ALT button as the micro reverse feed. (4) LOAD/EJECT Button Pressing this button loads or ejects the paper. Refer to Section 1.6.8, Sheet Loading and Sheet Ejection. This button is also used in conjunction with the ALT button as the micro forward feed. (5) TEAR-OFF/BIN l\BiN 2 Button In tractor-feed mode, pressing this button advances continuous paper to the tear-off position, and the TEAR-OFF indicator is lit. In friction-feed mode, pressing this button toggles between bin 1 and bin 2, and the selected BIN indicator is lit. (6) ALT Button This button is used only in combination with another button,
1-16
REV.-A (7) FONT Button Pressing this button selects a font, and pressing it continuously selects the next one, sequentially. The FONT LED indicates the currently selected font. (8) CONDENSED Button Pressing this button toggles the printing mode between normal and condensed, alternatively. NOTE: Selections of the FONT and CONDENSED buttons are stored as defaults, so that the last FONT and the CONDENSED selection become effective when the printer is initialized.
INDICATORS (1) OPERATE (green) Lit when the printer's OPERATE button is on, and AC power is supplied. (2) PAUSE (orange) Lit when the printer is in PAUSE-mode (no printing, no paper feeding, and not accepting data). (3) TEAR-OFF (orange) Lit when the sheet is advanced to the tear-off position. (4) DATA (orange) Lit when the printer has received data from the host. . (5) PAPER-OUT (red) Lit when the paper-out detector senses no paper. Refer to Section 1.6.3, Paper-out Detection and Forms Override Function. (6) MULTI-PART (green) Lit when the adjust lever is positioned at the 4th step or higher, (7) BIN 1 (green) Lit when bin 1 is selected. (8) BIN 2 (green) Lit when bin 2 is selected. (9) FONT (green) - Draft, Courier, Roman, Saris Serif, Prestige, Script, Script C, Orator, Orator-S, OCR-B These indicators show the currently selected font. (10) CONDENSED (green) Lit when condensed mode is selected.
1-17
REV.-A
1.5 DIP SWITCHES AND JUMPER SETTING
This section describes the DIP switch selections and jumper setting for the LQ-570 printer.
1.5.1 DIP Switch Settings
The two DIP switch banks for the printer, located on control panel, function as shown in tables 1-12 through 1-15. (Note that the status of the DIP switches is read only at power on or upon receipt of the INIT signal.) Table 1-12. Settings for DIP Switch 1 (SW1) No. Description ON OFF Factory Setting ON ON ON OFF OFF OFF OFF
I 1
2 3 International character set and PC selection selection
See Table 1-14. Graphic Unidir. Invalid Invalid ON Italic Bidir. Valid Valid
I 4 I Charactertable
I 5 I Graphic print direction I 6 I High-speed draft 7 8 Input buffer l-inch skiD continuous ~aDer
I
OFF
I
OFF
t
No. 1 2 3 4
Table 1-13. Settings for DIP Switch 2 (SW2) Description Page length of continuous paper Auto tear-off Auto LF ON OFF Factory Setting OFF OFF OFF OFF
See Table 1-15. ON ON OFF OFF
1-18
REV.-A Table 1-14. International Character Set Selection
1-1
ON ON ON ON OFF OFF OFF OFF
1-2 ON ON OFF OFF ON ON OFF OFF
1-3 ON OFF ON OFF ON OFF ON OFF
Country Us. France Germany U.K. Denmark 1 Sweden Italy Spain 1
Pc 437 850 860 863 865 (437) (437) (437)
L
--
When SW 1-4 is OFF, If graphic table was selected by ESC t 1, PC becomes 437. When SW 1-4 is ON, if italic table was selected by ESC t O, country setting becomes U.S.
Table 1-15. Page Length 2-1 OFF ON OFF ON 2-2 OFF OFF ON ON Page Length 11 inches 12 inches 8.5 inches 70/6 inches
1.5.2 Jumper Setting
If Jumper 3 is connected to GND, the SLCT-IN signal is fixed to LOW.
1.
1-19
REV.-A
1.6 OPERATING INSTRUCTIONS
This section describes the self-test and hexadecimal dump functions and also includes the error states, printer initialization, and buzzer operation.
1.6.1 Self-Test
To run the self-test using draft mode, turn the printer on while pressing the LOAD/EJECT button. To run the self-test using the letter quality (LQ) mode, turn the printer on while pressing the LINE FEED\FORM off. The firmware revision number is printed on the first line of the self-test, followed by the current D I P switch settings. FEED button. You can stop or start self-test printing by pressing the PAUSE button. When you are satisfied with the self-test, stop the printing by pressing the PAUSE button and turn the printer
Xxxxxx Country/PC U.S.A. France German y (J. K . Oe nma r k Swedeil
Swl-1 1 - 2 on on o n o n on off on off off on o f f" o n
I ta 1 ? S pd 1 i I
`c 437 `- . . (j
1"3 1-4 on off o f f off Orl off off off on off Ot f o f t o t f' o I t o n of f (,I f f ~ t f ~ f f ~ f f on
High s p e e d d r a f t SWI-6 off Va 1 id
Invalid
Receive buffer Valid I nva 1 i d 1 i n c h skip 1 rival id `~~I;~ k
on
SW1-7 off on SW1-8 off to f I SW2-1 2 - 2 off off ~ t i
on on ,:.) I I ~
Figure 1-8. Self-Test Printout
1.6.2 Hexadecimal Dump Function
To put the printer in hex. dump mode, power it on while pressing both the LOAD\ EJECT and LINE FEED\FORM FEED buttons. In hex. dump mode, the printer prints out the hexadecimal representation of the input data, along with the corresponding ASCII characters. This function is valuable for checking the data the printer has received from the host. If input data is a nonprintable character code, a period (.) is printed in the ASCII column.
:6 40 20 20 bD 70 75 6D 69 73 0.4 20
LB 52 00 54 68 69 6C 65 20 70 20 70 20 66 65 20 20 20
IB
73
6F 72
61
20
74 01 IB 20 69 73 66 20 61 69 6E 74 74 75 72 69 74 20
36 20 20 6F 65 65
12 61 64 75 20 61
LB 6E 61 74 6D 73
50 20 74 2E 61 79
18 65 61 20 6B 20
70 78 20 54 65 66
00
61 6 4 60 73
.@. R. . t. .6. .P. D. This is a n e x a mple of a data d ump p r i n t o u t . Th i s f ea tu r e m a k e s
6F
.
i t easy fo
Figure 1-9. Hexadecimal Dump Function
1-20
REV.-A
1.6.3 Paper-out Detection and Forms Override Function
When the paper-out detector, attached to the printer mechanism, detects a paper-end, the printer first performs a forms override. If paper loading fails, the BUSY signal goes HIGH, the PAPER OUT indicator is lit, the interface PE signal becomes HIGH, the ERROR signal becomes LOW, and the printer enters the PAUSE condition automatically. By ignoring the paper out, the printer can print additional lines after the paper out is detected. This function is called the forms override function. After you load new paper and press the PAUSE button, the printer recovers to the RUNNING condition, and printing restarts. The printer enters the paper-out condition only when a paper-out is detected after the printer performs paper loading.
1.6.4 Error Conditions
If any of the following error conditions are detected, the printer automatically enters PAUSE condition.
q Home position is not detected at printer mechanism initialization. q Home position is detected during printing. q The PAUSE button is pressed, and the printer enters PAUSE condition. q A paper-out is detected after performing paper loading operation.
If parallel interface is selected, the following interface signals are output to indicate the error and to stop data transmission: The BUSY signal becomes HIGH. The ERROR signal becomes LOW. No ACKNLG pulse is sent.
1.6.5 Buzzer Operation
The buzzer sounds under the following conditions: . A paper-out error is detected (beeps 3 times for 0.1 second, with 0.1 second intervals).
q Abnormal carriage movement is detected (beeps 5 times for 0.5 second, with 0.5 second intervals). q A panel setting is accepted (O. 1 second beep). 1.6.6 Printer Initialization
There are three initialization methods: hardware initialization, software initialization, and panel initialization. (1) Hardware initialization This type of initialization takes place when the printer power button is turned on (and the AC power cord is plugged in) or when the INIT signal is received. When the printer is initialized, it performs the following actions: 1-21
REV.-A (a) Initializes printer mechanism. (b) Clears input data buffer. (c) Clears downloaded character set. (d) Clears print buffer. (e) Returns printer settings to their default values. (2) Software initialization Input of the ESC @ command also initializes the printer. Printer initialization by ESC @ code does not perform functions (a), (b), and (c) above. The settings changed by the last SelecType operation are maintained. (3) Panel initialization This printer can be initialized by pressing the PAUSE button in combination with the ALT button. When the printer is initialized from the front panel, functions (a) and (c) above are not performed. The settings changed by the last SelecType operation are maintained.
1.6.7 Default Values
When the printer is initialized, the following default values are set: Page position Left and right margins Line spacing Vertical tabs Horizontal tabs Family number of type style Download characters The current paper position becomes the top-of-form position Released 1/6 inch Cleared Every 8 characters (relative) Last font selected from the panel Kept - software initialization Cleared hardware initialization Character spacing Printing effects Condensed printing Printer condition 10 cpi Cleared, except condensed printing Last setting selected from the panel RUN
1.6.8 Sheet Loading and Sheet Ejection
The release lever can disengage the pull-tractor unit drive mechanism, giving this printer improved paper-handling for functions that utilize the release lever. These functions are described below: Automatic cut-sheet loading without the cut-sheet feeder Move the release lever to the friction-feed position, and place the sheet along the paper guide (top or front). A few seconds later, the sheet is automatically loaded to the top-of-form position and the printer enters the RUNNING condition.
1-22
REV.-A Automatic cut-sheet loading and ejection with cut-sheet feeder Move the release lever to the friction-feed position, and place the sheets into the hopper of the cut-sheet feeder. Pressing the LOAD/EJECT button loads one sheet to the top-of-form position. If a paper-out is detected before printing starts, a sheet will again be loaded automatically to the top-of-form position. Continuous paper loading and ejection (backout) Move the release lever to the REAR PUSH position, and insert the paper into the tractor unit. Pressing the LOAD/EJECT button loads the paper automatically to the top-of-form position. If a paper-out is detected before printing starts, the paper will be loaded automatically to the top-of-form position. If the LOAD/EJECT button is pressed after continuous paper has been loaded, the paper is ejected backward to the push tractor unit. To back out several pages, press the LOAD/EJECT button several times. Each time LOAD/EJECT is pressed, reverse feed is performed for a single page. When the paper is at the current setting for the top-of-form position, the top-of-form adjustment function is valid for the next loaded positicrn. At this time, the LOAD\ EJECT button advances the paper forward, and the LINE FEED/FORM FEED button moves the paper backward. The adjusted top-of-form position for continuous paper is saved in EEPROM, but the setting for cut sheet paper is not saved.
1.6.9 Tear-off Function
The below tear-off function is limited under the push tractor mode. Auto-tear-off The auto-tear-off function is enabled by DIP switch setting. When this function is enabled and the release lever is in the tractor position, the paper advances to the tear-off position automatically if the input data buffer is empty and the printer is in the RUNNING condition. The TEAR-OFF LED lights to indicate that you can use the LOAD/EJECT and LINE FEED/FORM FEED buttons, in combination with the ALT button, for backward and forward micro feed adjustment. Using micro feed, adjust the paper to meet the tear-off edge. Once the tear-off position is set, this setting remains valid even after the printer is turned off or initialized. If subsequent data is sent to the printer, the paper returns to the original position automatically and printing starts. If the PAUSE button is pressed while the paper is advanced to the tear-off position, the paper returns to the original position (and the printer enters the PAUSE condition).
1-23
REV.-B Short-tear-off To access the short-tear-off function, press the TEAR-OFF button. The release lever must be in the tractor position. The paper advances to the tear-off position whether the printer is in PAUSE or RUNNING condition. At this time, the TEAR-OFF LED lights to indicate that you can use the LOAD/EJECT and LINE FEED/FORM FEED buttons, in conjunction with the ALT button, for backward and forward micro feed adjustment. Using micro feed, adjust the paper to meet the tear-off edge. Once the tear-off position is set, this setting remains valid even after the printer is turned off or initialized. If subsequent data is sent to the printer and the printer is in the RUNNING condition, the paper returns to its original position automatically and printing starts. If the TEAR-OFF button is pressed again while the paper is advanced to the tear-off position, paper returns to its original position whether the printer is in PAUSE or RUNNING condition.
I 1.6.10 LEVER, G, ADJUST Operation
The LEVER ,G, ADJUST must be set to the proper position for the paper thickness. If this lever has been set to the 4th step or higher, printing speed is reduced and the head energy is increased. Table 1-16. Lever Positions I Lever Position I Paper Thickness I
I NOTE: If printing density becomes lighter, adjust the LEVER, G, ADJUST position one step higher.
1 position (3rd step)
A,DJUST
Figure 1-10. Lever Positions
1-24
REV.-A 1.6.11 Printer Protection for
H e a v y -Duty Pr inting
This printer has a printhead protection function to prevent it from overheating and to protect the printer when the head driver voltage drops. If head temperature exceeds its maximum value, printing stops automatically until the head temperature drops to a certain value before printing resumes. Printing resumes at a lower print speed at first. However, as the head temperature decreases, print speed increases to normal speed automatically. If the head temperature continues to increase at the lower speed, printing is stopped or resumed as temperature increases or decreases. If the voltage supplied to the head drive circuit drops below its minimum limit as a result of heavy-duty printing, printing is interrupted immediately. When the power supply voltage recovers to a certain value, the remaining print line is printed at half speed. This protective action occurs when half or more of the wires are activated continuously.
1-25
REV.-B
1.7 MAIN COMPONENTS
I
The main components of the LQ-570/l 070 printers are designed for easy removal and replacement to maintain and repair the printer. The main components are: 1) C062 MAIN board: 2) C062 PNL board: 3) C062 PSB\PSE board: 4) M-5 E10/5E60: the main control board; the CPU on this board controls all main functions. the control panel board. the power supply board. the printer mechanism. C062 PSB/PSE Board C062 MAIN Board &
,Y 7 ,U ".0 r 1 l-l i
I
9
p
u
xx &
1-
d
-1 rlq
h 11 J i\ \
~
Printer
Mechanism M-5E60 (LQ-1 070)
Printer Mechanism M-5E 10 (LQ-570)
Figure 1-11. LQ-570/1070 Component Layout
1.7.1 C062 MAIN Board (Main Control Circuit Board)
The C062 MAIN Board for the LQ-570 consists of a TMP90C041 N 8-bit CPU, an E05A50 gate array, a PROM (5 12K), a PSRAM (256 K), a mask ROM (character generator, 2M), an EEPROM, and a hybrid I IC (STK-6022B). In addition to this, the board for the LQ-1 070 also includes a SRAM (64 K).
(80-column)
(1 36-column)
Figure 1-12. C062 MAIN Board (80-column and 136-column)
1-26
REV.-B 1.7.2 C062
PNL Board (Control Panel Circuit Board)
The C062 PNL board is the LQ-570\1070 control panel, which includes the indicator LEDs, switches, I and DIP switches.
Figure 1-13. C062 PNL Board
1.7.3 C062 PSB/PSE Board (Power Supply Circuit Board)
The power supply unit consists of a switching regulator circuit, which converts the AC line voltage to the DC voltages (for example, +35V and + 5V) used by the printer. The C062 PSB board is 120V input type, and the C062 PSE board is 220\240V input type.
o o f:
m
OFOM I E o.
(a, ~D o
Figure 1-14. C062 PSB/PSE Board .
1-27
REV.-B 1 . 7 . 4 P r i n t e r M e c h a n i s m ( M - 5 E10/M-5E60) The M-5E 10/M-5E60 printer mechanism was developed specifically for use with LQ-570/l 070 printer. The components include a carriage motor, carriage mechanism, paper-feed motor, paper-feed mechanism, ribbon-feed mechanism, printhead, and sensors. This printer mechanism allows three ways of paper insertion.
This picture shows an 80-column Printer. T h e M-5E1O a n d M-5E60 d i f f e r i n width only.
I
1.7.5 Housing
Figure 1-15. Model-5El O/5E60 Printer Mechanism
I The LQ-570/l 070 housing consists of the upper, lower, and front cases. The front case houses the control panel board. The lower case contains the printer mechanism, the main control circuit board, and power supply circuit board.
(LQ-570)
(LQ-1 070) Figure 1-16. Housing (LQ-570/LQ-1070)
1-28
REV.-B
CHAPTER 2 OPERATION PRINCIPLES
2.1 OVERVIEW OF PRINTER MECHANISM OPERATION . . . . . . . . . . . . . . . 2-1 2.1.1 Printhead M e c h a n i s m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2.1.2
carriage Movement Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .2-2
2.1.3.1 Paper Advance Mechanisms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3 2.1.3.2 Paper Insertion Entrances ......................................."."" 2-6
.. 2.1.3 Paper Feed Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
2.1.4 Ribbon Advance Mechanism ..................................."""..."..."."2.2
2-10
P O W E R S U P P L Y OPERATlON......................................."..."....m"".."..... 2-11 .. 2 . 2 . 1 P o w e r S u p p l y O v e r v i e w . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-11 2.2.2 SupPly Circuit Operation .....................
m
........ oc...........j" ". O""..O... 2-11
2.3
S.." OW..CONTROL CIRCUIT OPERATION .......................................· 2-13
2.3.1 2.3.2 2.3.3 2.3.4 2.3.5 2.3.6 2.3.7 2.3.8
(Control circuit
Operation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
.... Reset Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15 ... Sensor Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-16 MOTOR, CR Drive Circuit ..............................................."...... 2-17
.. MOTOR, PF Drive Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-18 Printhead Drive Circuit ..........................................S....S........... 2-19 Parallel Interface Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .2-20 . EEPROM Control Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20 ..
LIST OF FIGURES
Figure 2-1. Figure 2-2. Figure 2-3. HOW the Printhead Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . 2-1 Carriage Movement......................................"......."......"......... Paper-Thickness Gap LEVER, G, ADJUST M o v e m e n t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .2-2 Figure 2-4. Figure 2-5. Figure 2-6. Figure 2-7. Figure 2-8. Figure 2-9. .. Top Entrance Friction Feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 . Push Tractor Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 .. Pull Tractor Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5 Push-Pull Tractor Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 LEVER, RELEASE Movement ..................................o.......... 2-6 Paper Path for Top Entrance Friction Feed .................. 2-6 2-2
Figure 2-10. Paper Path for Rear Entrance Push Tractor Feed. . . . . . 2-7 Figure 2-11. Paper Path for Rear Entrance Push-Pull ... Tractor Feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . 2-7 Z.i
REV.-B Figure 2-12. Paper Path for Bottom Entrance Pull Tractor Feed... 2-8 Figure 2-13. Paper Path for Front Entrance Friction Feed. . . . . . . . . . . . . . . 2-9 Figure 2-14. Paper Path for Front Entrance Pull Tractor Feed. . . . . . . 2-9 . Figure 2-15. Ribbon Advance Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1o Figure 2-16. Power Supply Circuit Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12 Figure 2-17. Control Circuit Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-13
Figure 2-18. Data Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14 . Figure 2-19. Reset Circuit Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15 . Figure 2-20. RESET Signal Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-16 Figure 2-21. Sensor Circuit Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16 . Figure 2-22. MOTOR, CR Drive Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17 Figure 2-23. MOTOR, PF Motor Drive Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18 Figure 2-24. Printhead Drive Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19 Figure 2-25. Head Drive Signal Output Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-19 Figure 2-26. Parallel Interface Circuit .......................................#............. 2-20 . Figure 2-27. EEPROM Control Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-20
LIST OF TABLES
Table 2-1. Table 2-2. Table 2-3. Table 2-4. Table 2-5. Table 2-6. Paper Advance Methods and Paper Paths ................... 2-3 Ribbon Advance Gear Linkage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .2-10 Power Supply Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11 Power Supply Output Voltages and Applications ...... 2-11 Functions of the Main IC and Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14 MOTOR, CR Drive Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17 .
Z.ii
REV.-B
2.1 OVERVIEW OF PRINTER MECHANISM OPERATION
This section describes the PRINTER MECHANISM of the Model-5E 10\5E60 printer unit and explains how the printer works. The Model-5E 10/5E60 has a PRINTER MECHANISM that features a 24-pin impact dot printhead for serial printing. There are four main parts to the printer mechanism: 1) the printhead mechanism, 2) the carriage movement mechanism, 3) the paper advance mechanism, and 4) the ribbon advance mechanism. Each of these is described below. I
2.1.1 Printhead Mechanism
The printhead mechanism consists of the printhead itself, the ink ribbon, and the PLATEN. The printhead contains 24 wires in a zigzag arrangement in two rows of 12. A drive coil is provided for each of these wires to make the wires move in and out of the printhead and print dots independently of each other. The basic way that the wires are driven is described in the four steps below. 1. The control circuit outputs the drive signal to the printhead drive circuit. This changes the printhead drive voltage, and current flows through the corresponding printhead coil. The coil acts as a solenoid and generates a magnetic force. 2. This induced force causes the plate to approach the coil rod and the associated dot wire is rapidly ejected to impact on the platen. 3. The dot wire presses the ink ribbon up against the paper as it hits the platen, and in this way prints a dot on the paper. 4. As soon as the current througk the coil is switched off, the force induced in the coil rod stops. The plate then returns to its original position (its position before the coil was energized) through the action of the plate spring. After the dot wire hits the platen, the rebounding force of hitting the platen works together with the wire return spring to pull the wire back to its original position in relation to the plate.
PLATEN Dot Wire
RIBBON MASK
Wire Resetting Spring Stopper \ \ /
Actuating
n-lo-e
f ~~1~..ad.rivin9coi,
Actuating plate Sprin9
Paper
Figure 2-1. How the Printhead Works
Figure 2-1 shows the action of the PRINTER MECHANISM when a single dot is printed. The printhead tends to heat up after a period of continuous printing. To minimize the possibility of the dot wire drive coils overheating within the printhead and any loss of performance, the head is equipped with a thermistor that detects the head temperature. When this thermistor detects changes in the printhead temperature, the voltage signal changes. This signal change is read by the control circuit for feedback control. 2-1
REV.-B
2.1.2 Carriage Movement Mechanism
A timing belt is connected to the carriage on the lower side. With the printhead installed, this carriage moves in either direction along the SHAFT, CR, GUIDE. The carriage is driven by the MOTOR, CR a stepping motor that drives the TIMING BELT via the BELT PULLEY. The DETECTOR ASSY., HP DETECTS when the carriage is in the home position. Left
DETECTO I
\ $!! !%
(
Carriage
SHAFT, CR, GUIDE
h
MOTOR, CR
BELT PU"LLEY
Figure 2-2. Carriage Movement
The paper-thickness LEVER, G, ADJUST allows the printer to use different weights of paper (different thicknesses). The user controls this lever and alters the platen gap on the SHAFT, CR, GUIDE by changing its position. Changing the position of the lever rotates the CHAFT, CR, GUIDE and moves the carriage either toward or away from the PLATEN. Moving the paper-thickness LEVER, G, ADJUST to the fourth position or higher slows down the printing speed to protect the printhead. current position of the paper-thickness LEVER, G, ADJUST. The PG sensor reads the
ADJUST
.
ASSY., PLATEN
PLATEN
Figure 2-3. Paper-Thickness LEVER, G, ADJUST Movement
2-2
REV.-B
2.1.3 Paper Feed Mechanism
Cut sheet paper is advanced by friction feed. Continuous form paper is advanced using a tractor feed mechanism. There are three ways to advance the paper with tractor feed: using the push tractor, using the pull tractor, and using the push and pull tractors together. Any one of these three tractor configurations can feed paper through the printer. In normal operation, the printer is set up with one tractor, which functions as either a push tractor or pull tractor, depending on where it is attached to the printer body. To use the push-pull tractor feed method, an optional tractor must be attached in addition. There are also four ways to insert paper into the printer. Different paper paths are used for different types of paper. Table 2-1 lists which paper paths can be used for each of the various paper advance methods. Table 2-1, Paper Advance Methods and Paper Paths Paper Insertion (Paper Paths) Paper Advance Method Friction Feed Push Tractor Pull Tractor Push-pull Tractor Feed Rear Entrance No OK No OK Front Entrance OK No OK No Bottom Entrance No No OK No Top Entrance OK No No No
2.1.3.1 Paper Advance Mechanisms
This section describes how the friction feed and tractor feed mechanisms work to advance the paper in the printer.
Friction Feed Method
The paper is held between the platen and paper advance' roller, and between the paper eject roller and paper eje