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Impact Serial Dot Matrix Printer
EPSON LQ-2180
®
SEDM98001
Notice:
,, All rights reserved. No part of this manual may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION. ,, The contents of this manual are subject to change without notice. ,, All effort 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 not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this manual or the consequences thereof. EPSON is a registered trademark of SEIKO EPSON CORPORATION.
General Notice:
Other product names used herein are for identification purpose only and may be trademarks or registered trademarks of their respective owners. EPSON disclaims any and all rights in those marks.
Copyright © 1996 SEIKO EPSON CORPORATION. Printed in Japan.
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 DANGER Headings. Signals 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 THE POWER SOURCE AND PERIPHERAL DEVICES PERFORMING ANY MAINTENANCE OR REPAIR PROCEDURES. 2. NOWORK SHOULD BE 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 VOLTAGES 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 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 REMOVING OR REPLACING PRINTED CIRCUIT BOARDS AND/OR INDIVIDUAL CHIPS. 4. IN ORDER TO PROTECT SENSITIVE MICROPROCESSORS AND CIRCUITRY, USE STATIC DISCHARGE EQUIPMENT, SUCH AS ANTISTATIC WRIST STRAPS, WHEN ACCESSING INTERNAL COMPONENTS. 5. REPLACE MALFUNCTIONING COMPONENTS ONLY WITH THOSE COMPONENTS BY THE MANUFACTURE; INTRODUCTION OF SECOND-SOURCE ICs OR OTHER NONAPPROVED COMPONENTS MAY DAMAGE THE PRODUCT AND VOID ANY APPLICABLE EPSON WARRANTY.
PREFACE
This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair instructions and procedures included herein are intended for the experienced repair technicians, and attention the preceding page. The chapters are organized as follows:
CHAPTER 1. CHAPTER 2. CHAPTER 3.
PRODUCT DESCRIPTIONS OPERATING PRINCIPLES DISASSEMBLY AND ASSEMBLY
Provides a general overview and specifications of the product.
Describes the theory of electrical and mechanical operations of the produc
Describes the step-by-step procedures for disassembling and assembling th product.
CHAPTER 4. CHAPTER 5. CHAPTER 6.
ADJUSTMENTS TROUBLESHOOTING MAINTENANCE
Provides Epson-approved methods for adjustment.
Provides the step-by-step procedures for troubleshooting.
Provides preventive maintenance procedures and the lists of Epson-approv lubricants and adhesives required for servicing the product.
APPENDIX
Provides the following additional information for reference: · EEPROM Address Map · Connector Pin Assignments · C272 Main Board Component Layout · C272 Main Board Circuit Diagram
Revision Status
Revision A Issued Date February 3, 1999 Description First Release
Contents
Product Description
Specifications ................................................................................................. 8 Features ................................................................................................................ 8 Accessories ........................................................................................................... 8 Printing Specifications ........................................................................................... 9 Paper Handling ...................................................................................................... 9 Paper Specifications ............................................................................................ 11 Electrical Specifications ....................................................................................... 15 Reliability ............................................................................................................. 15 Safety Approvals ................................................................................................. 15 CE Marking .......................................................................................................... 15 Firmware Specifications ............................................................................... 16 Control Codes and Fonts .................................................................................... 16 Interface Specifications ....................................................................................... 18
Disassembly and Assembly Adjustment
Overview ...................................................................................................... 33 Pre-operation for the Adjustment Program ......................................................... 33 Bi-D Adjustment .................................................................................................. 35 TPE Level Reset ................................................................................................. 36 Writing the User-characteristic Data ................................................................... 37
Troubleshooting
Overview ...................................................................................................... 40 Troubleshooting Information ........................................................................ 40 Printhead ............................................................................................................. 40 Sensors ............................................................................................................... 40 Motors ................................................................................................................. 40 Error Codes with Indicators and Buzzer .............................................................. 40 Unit Level Troubleshooting ........................................................................... 41 Repairing the C165 PSB/PSE Board .............................................................. 41 Repairing the C272MAIN Board ..................................................................... 41 Repairing the Printer Mechanism .................................................................. 43
Parallel Interface (Forward Channel) .................................................. 18 Parallel Interface (Reverse Channel) ................................................. 18 Operation Instruction .................................................................................... 19
Control Panel ....................................................................................................... 19 Bi-directional Adjustment Function ...................................................................... 19 EEPROM Initialization ......................................................................................... 20 Main Components ......................................................................................... 21 C272MAIN Board ................................................................................................ 22 Printer Mechanism .............................................................................................. 23
Operating Principles
Control Circuit .............................................................................................. 25 Overview of the Control Circuit Operation ........................................................... 25 System Reset Circuit ........................................................................................... 26 Printhead Driver Circuit ....................................................................................... 27 CR Motor Driver Circuit ....................................................................................... 28 PF Motor Driver Circuit ........................................................................................ 28 EEPROM Control Circuit ..................................................................................... 29 Sensor Circuit ...................................................................................................... 29
Maintenance Appendix
EEPROM Address Map ................................................................................. Connector Summary ..................................................................................... Component Layout ....................................................................................... Circuit Diagram ............................................................................................
47 51 53 55
PRODUCT DESCRIPTION
LQ-2180
Revision A
1.1 Specifications
The LQ-2180 is a revised model of the already existing LQ-2170. Since the specifications for the both products are mostly common except for the LQ-2180's improved features such as printing speed and copy capability, the information included in this section is limited to the items that are specific to LQ-2180. For the rest of the information, refer to the LQ-2170 Service Manual.
1.1.2 Accessories
Items included in the printer carton Table 1-1. Items Included in the Printer
Items User's manual Driver disk Ribbon cartridge Quantity 1 1 1 1
1.1.1 Features
Printing speed ,, High speed draft: ,, Draft: ,, LQ: Character tables ,, Standard version: ,, NLSP version: Reliability ,, Mean print volume between failure: 23 million lines (except printhead) Bi-directional Interface ,, Optional Type-B I/F Level 2 supported Copy capability ,, 1 original + 5 copies 13 tables 38 tables 480 cps 360 cps 120 cps (at 10 cpi)
Power supply cable (230 V version)
Consumable items Table 1-2. Items Included in the Printer
Items Ribbon cartridge Ribbon pack Part Number S015086 S010033
Optional items: Additional items are shown in the table below: Table 1-3. Items Included in the Printer
Items IEEE-1284 parallel I/F card Ethernet I/F card C82345 C82357 / C82362 / C82363 / C82363 (See NOTE below.) / C82364 Part Number
NOTE: When you use Ethernet interface card C82363, you need to attach the optional interface adapter (C82525*) to the interface card.
Product Description
Specifications
8
LQ-2180
Revision A
1.1.3 Printing Specifications
Copy capability: 1 original + 5 copies Printing speed and printable column (See the table below.) Table 1-4. Print Speed and Corresponding Printable Columns
Printing mode High speed draft Character pitch 10 cpi 10 cpi Draft 12 cpi 15 cpi 17 cpi Draft condensed 20 cpi 10 cpi LQ 12 cpi 15 cpi 17 cpi LQ condensed 20 cpi 272 238 159 272 136 163 204 233 359 120 143 179 204 239 80 96 120 137 Printable columns 136 136 163 204 233 Printing speed (cps) Normal 480 360 431 539 308 Copy 320 240 286 358 205
1.1.4 Paper Handling
This section only describes the release lever setting, adjust lever setting, and some other specifications which are specific to LQ-2180. For the rest of the specifications, see the LQ-2170 Service Manual. Feeding method ,, Friction feed (front, rear) ,, Push tractor feed (front lever) ,, Push & Pull tractor feed (front, rear) ,, Pull tractor feed (front, rear, bottom) Feed speed ,, Normal mode: ,, Copy mode: Same as for LQ-2180 1/6 inch feed = 45 m sec Continuous feed =0.092 MPW (m/second) 3.6 IPS (inches/second)
NOTE: When the power supply voltage drops to the lower limit, the printer stops printing and then resumes printing remaining on that line more slowly than before. NOTE: When the head temperature rises to the upper limit, the printer stops printing. When the head temperature falls to the normal level, the printer starts printing again more slowly than before. NOTE: The maximum printable width is 13.6 inch (345.44 mm).
Product Description
Specifications
9
LQ-2180
Release lever: See the following table. Adjust lever: See the following table.
Revision A
Table 1-5. Release Lever Settings
Lever Position Paper path / Feeder Manual insertion (front) Manual insertion (rear) Friction CSF Bin 1 CSF Bin 2 Roll paper holder Push tractor feed (front) Front tractor Push & Pull tractor feed (front) Push tractor feed (rear) Rear tractor Push & Pull tractor feed (rear) Pull tractor feed (front) Full release Pull tractor feed (rear) Pull tractor feed (bottom) Continuous paper (Single sheet & Multi part) Continuous paper (Single sheet & Multi part), Continuous paper with labels Continuous paper (Single sheet & Multi part) Continuous paper (Single sheet & Multi part), Continuous paper with labels Continuous paper (Single sheet & Multi part), Continuous paper with labels Continuous paper (Single sheet & Multi part) Paper / Media Cut sheet (Single sheet & Multi part), Card Cut sheet (Single sheet & Multi part), Card, Envelope Cut sheet (Single sheet & Multi part), Card, Envelops Cut sheet (Single sheet) Roll paper Continuous paper (Single sheet & Multi part), Continuous paper with labels Setting Position 0 1 2 3 4 5 6 7
Table 1-6. Adjust Lever Setting Position
Paper Thickness (inch) Paper Thickness (mm) Minimum 0.0024 0.0047 0.0074 0.0102 0.0126 0.0141 0.0157 0.0173 Maximum 0.0047 0.0074 0.0102 0.0126 0.0141 0.0157 0.0173 0.0181 over 0.006 up to 0.12 over 0.12 up to 0.19 over 0.19 up to 0.26 over 0.26 up to 0.32 over 0.32 up to 0.36 over 0.36 up to 0.40 over 0.40 up to 0.44 over 0.44 up to 0.46
Product Description
Specifications
10
LQ-2180
Revision A
Table 1-8. Cut Sheet (Multi Part)
Front Entry Minimum Maximum 16.5 420 16.5 420 Rear Entry Minimum 3.9 100 3.9 100 Maximum 16.5 420 16.5 420
1.1.5 Paper Specifications
This section provides paper specifications for the LQ-2180. Table 1-7. Cut Sheet
Front Entry Minimum Width Length Thickness Weight (inch) (mm) (inch) (mm) (inch) (mm) (g/m2) (lb.) 3.9 100 5.8 148 0.0025 0.065 52 14 Maximum 16.5 420 16.5 420 0.0055 0.14 90 24 Rear Entry Minimum 3.9 100 3.9 100 0.0025 0.065 52 14 Maximum 16.5 420 16.5 420 0.0055 0.14 90 24 Width Length Copies Total Thickness Weight
(one sheet of multi part)
(inch) (mm) (inch) (mm)
3.9 100 5.8 148
1 original + 5 copies (inch) (mm) (g/m2) (lb.) 0.0047 0.12 40 12 0.018 0.46 58 15
1 original + 5 copies 0.0047 0.12 40 12 0.018 0.46 58 15
Quality Jointing
Plain paper, Recycled paper, Paper that is not curled, folded, or crumpled. Line glue at the top or one side of form. Line glue at the top of form.
Quality
Plain paper, Recycled paper, Paper that is not curled, folded, or crumpled.
Plain paper, Recycled paper, Paper that is not curled, folded, or crumpled.
NOTE: Printing on recycled paper is available only under normal temperature and humidity conditions.
Product Description
Specifications
11
LQ-2180
Table 1-9. Card
Front Entry Minimum Width Length Thickness Weight (inch) (mm) (inch) (mm) (inch) (mm) (g/m2) (lb.) 3.9 100 5.8 148 0.0087 0.22 192 51 Plain paper, Recycled paper, Paper that is not curled, folded, or crumpled. Maximum 7.8 200 7.8 200 Rear Entry Minimum 3.9 100 5.8 148 0.0087 0.22 192 51 Plain paper, Recycled paper, Paper that is not curled, folded, or crumpled. Maximum 7.8 200 7.8 200 Width Envelop (No. 6) Length Width Envelop (No. 10) Length (inch) (mm) (inch) (mm) (inch) (mm) (inch) (mm) (inch) (mm) Total Thickness -----
Revision A
Table 1-10. Envelope
Front Entry Minimum Maximum ----------0.0063 0.16 Rear Entry Minimum 6.5 165 3.6 92 9.5 241 4.1 105 0.020 0.52 Maximum
Quality
NOTE: Printing on recycled paper is available only under normal temperature and humidity conditions.
Weight
The difference of thickness at the printable area is within 0.0098 inch (0.25mm). --45 12 90 24
(g/m2) (lb.)
---
NOTE: When the longer side of A6 card is horizontally, it should be inserted from the rear entrance.
Quality ---
BOND paper, plain paper or AIRMAIL No glue at a flap Not curled, not folded, not crumpled
NOTE: Printing on envelope is available only under normal temperature and humidity conditions. NOTE: Envelopes should be inserted from rear entrance only. NOTE: Set the longer side of envelope horizontally.
Product Description
Specifications
12
LQ-2180
Table 1-11. Continuous Paper (Single sheet and Multi Part)
Front Entry Min. Width Length (one page) Copies Total Thickness Weight (not multi part) (inch) (mm) (g/m2) (lb.) (inch) (mm) (inch) (mm) 4 101.6 4 101.6 Max. 16 406.4 22 558.8 Rear Entry Min. 4 101.6 4 101.6 Max. 16 406.4 22 558.8 Bottom Entry Min. 4 101.6 4 101.6 Max. 16 406.4 22 558.8 Label size Base sheet width Base sheet length (one page) Base sheet thickness Total thickness Label weight 40 12 58 15 40 12 58 15 40 12 58 15 Quality Plain paper, Recycled paper, Carbonless multi part paper Point glue or paper staple (both side) (inch) (mm) (inch) (mm) (inch) (mm) (inch) (mm) (g/m2) (lb.)
Revision A
Table 1-12. Continuous Paper with Labels
Front Entry Min. Max. Bottom Entry Min. Max. Rear Entry Min. Max. ---------------
See the figure below 4 101.6 4 101.6 0.0028 0.07 0.0063 0.16 16 406.4 22 558.8 0.0035 0.09 0.0075 0.19 68 17
See the figure below 4 101.6 4 101.6 0.0028 0.07 0.0063 0.16 68 17 16 406.4 22 558.8 0.0035 0.09 0.0075 0.19
1 original + 5 copies 0.0025 0.065 52 14 0.018 0.46 82 22
1 original + 5 copies 0.0025 0.065 52 14 0.018 0.46 82 22
1 original + 5 copies 0.0025 0.065 52 14 0.018 0.46 82 22
Weight (g/m2) (one sheet (lb.) of multi part) Quality Jointing
---
AVERY CONTINUOUS FORM LABELS, AVERY MINI-LINE LABELS or the same quality labels
NOTE: Printing on labels si available only under normal temperature and humidity condition. NOTE: The base sheet of labels must be continuous paper. NOTE: Continuous paper with labels should be inserted from the front or bottom entrance.
2.5 inch (63.5 mm) min.
15/16inch (23.8 mm) min.
Label
R 0.1 inch (2.5 mm) min.
Figure 1-1. Printable Area - Label
Product Description
Specifications
13
LQ-2180
Table 1-13. Roll Paper
Front Entry Minimum Width Length Thickness Weight (inch) (mm) (inch) (mm) (inch) (mm) (g/m2) (lb.) ------------0.0028 0.07 52.3 14 Maximum Rear Entry Minimum 8.5 216 --0.0035 0.09 82 22 Maximum
Revision A
Quality
---
Plain paper, Recycled paper, Paper that is not curled, folded, or crumpled.
Product Description
Specifications
14
LQ-2180
Revision A
1.1.6 Electrical Specifications
The electrical specifications for the LQ-2180 is the same as for the LQ2170 except for the items below. For information on other items, see the LQ-2170 Service Manual. Input voltage range ,, 120 V version: ,, 230 V version: Rated current ,, 120 V version: ,, 230 V version: 1.0 A (maximum = 4.0 A) 0.5 A (maximum = 2.0 A) AC 99 to 132 V AC 198 to 264 V (same as for the LQ-2170 230 V version ,, Safety standards: ,, EMI: EN60950 (TUV) EN55022 (CISPR pub.22) class B AS/NZS 3548 class B
1.1.9 CE Marking
230 V version ,, Low voltage directive 73/23/EEC:EN60950 ,, EMD Directive 89/336/EEC: EN55022 class B EN61000-3-2 EN61000-3-3 EN50082-1 IEC801-2 IEC801-3 IEC801-4
Power consumption (for 120 V and 230 V versions) ,, Approximately 52 W (ISO/IEC10561 Letter pattern) (Energy Star compliant)
1.1.7 Reliability
MVBF *1: MTBF: Printhead life: 24 million lines (except print data) 10000 POH 400 million strokes/wire
Acoustic noise:
Approximately 54 db(A) (ISO 7779 pattern)
*1: Mean print volume between failure
1.1.8 Safety Approvals
120 V version ,, Safety standards: ,, EMI: UL1950, CSA C22.2 No. 950 FCC part15 subpart B class B CSA C108.8 class B
Product Description
Specifications
15
LQ-2180
Revision A
International character set (14 countries and legal) U.S.A. U.K. Italy Norway Latin America France Denmark 1 Spain 1 Denmark 2 Korea Germany Sweden Japan Spain 2 Legal
1.2 Firmware Specifications
This section describes the firmware specifications for the LQ-2180.
1.2.1 Control Codes and Fonts
Control codes: Character tables: Standard version (13 character tables) Italic table PC 860 (Portuguese) PC 850 (Multilingual) PC 437 (US, Standard Europe) PC 861 (Icelandic) PC 863 (Canadian-French) PC 865 (Nordic) Abicomp BRASCII Roman 8 ISO Latin 1 PC 858 ISO 8859-15 NLSP version (38 character tables) Italic table PC437 (US, Standard Europe) PC437 Greek PC850 (Multilingual) PC852 (East Europe) PC853 (Turkish) PC855 (Cyrillic) PC857 (Turkish) PC864 (Arabic) PC866 (Russian) PC869(Greek) MAZOWIA (Poland)Code MJK (CSFR) ISO 8859-7 (Latin/Greek) lSO Latin 1T (Turkish) Bulgaria (Bulgarian) PC774 (LST 1283:1993) Estonia (Estonia) ISO 8859-2 PC866 LAT. (Latvian) PC866 UKR (Ukraina)PC860 (Portuguese) PC861 (Icelandic) PC865 (Nordic) PC APTEC(Arabic) PC708 (Arabic) PC720 (Arabic) PCAR864 (Arabic) PC863 (Canadian-French) Abicomp BRASCII Roman 8 ISO Latin 1 Hebrew7* Hebrew8* PC862 (Hebrew)* PC 858 lSO 8859-15 ESC/P2 and IBM 2391 Plus Emulation
* The international and legal characters are these 12 codes: 23H, 24H, 40H, 5BH, 5CH, 5DH, 5EH, 60H, 7BH, 7CH, 7DH, 7EH Typeface Bit map fonts EPSON Draft EPSON Roman EPSON Sans Serif EPSON Courier EPSON Prestige EPSON Script EPSON OCR-B EPSON Orator EPSON Orator-S EPSON Script C Scalable fonts EPSON Roman EPSON Sans Serif EPSON Roman T EPSON Sans Serif H Bar codes EAN-13, UPC-A Code 128 10 CPI, 12 CPI, 15CPI 10 CPI, 12 CPI, 15CPI, Proportional 10 CPI, 12 CPI, 15CPI, Proportional 10 CPI, 12 CPI, 15CPI 10 CPI, 12 CPI 10 CPI 10 CPI 10 CPI 10 CPI Proportional 10.5 pt., 8 pt., - 32 pt. (every 2 pt.) 10.5 pt., 8 pt., - 32 pt. (every 2 pt.) 10.5 pt., 8 pt., - 32 pt. (every 2 pt.) 10.5 pt., 8 pt., - 32 pt. (every 2 pt.) EAN-8 UPC-E POSTNET Interleaved 2 of 5 Code 39
* Not displayed in the Default setting mode.
Product Description
Firmware Specifications
16
LQ-2180
Revision A
Table 1-14. Character Tables and Available Typefaces
Character Tables Italic PC 850 (Multilingual)*1 PC 861 (Icelandic)*1 PC 863(Canadian-French)*1 Abicomp*1 Roman 8 PC 858 Italic table*1 PC 850 (Multilingual)*1 PC 861 (Icelandic)*1 PC 865(Nordic)*1 Abicomp*1 lSOLatin1 ISO 8859-15 PC 864 (Arabic) PC437Greek PC 853 (Turkish) PC 857 (Turkish) PC 869 (Greek) Code MJK (CSFR) lSO Latin 1T (Turkish) PC774 (LST 1283: 1993) 1SO 8859-2 PC 866 UKR (Ukraina) PC APTEC (Arabic) PC 720 (Arabic) Hebrew7*2 Hebrew 8*2 PC862 (Hebrew)*2 PC 852 (East Europe) PC 855 (Cyrillic) PC 866 (Russian) MAZOWIA (Poland) lSO 8859-7 (Latin/Greek) Bulgaria (Bulgarian) Estonia (Estonia) PC 866 LAT. (Latvian) table*1 PC 437 (US, Standard PC 860 (Portuguese)*1 PC 865 (Nordic)*1 BRASCII*1 ISO Latin 1 ISO 8859-15 Europe)*1 EPSON Draft EPSON Roman EPSON Sans Serif EPSON Courier EPSON Prestige EPSON Script EPSON OCR-B EPSON Orator EPSON Orator-S EPSON Script C Bit map font Scaleable font
Standard version
PC 437(US, Standard Europe)*1 PC 860(Portuguese)*1 PC863 (Canadian-French)*1 BRASCIl*1 Roman8 PC 858
EPSON Roman EPSON Sans Serif EPSON Roman T EPSON Sans Serif H
EPSON Draft EPSON Roman EPSON Draft EPSON Roman EPSON Sans Serif EPSON Courier EPSON Prestige EPSON Script EPSON Draft (Arabic) EPSON Roman EPSON Sans Serif
(Not supported)
NLSP version
(Not supported)
PC 708 (Arabic) PCAR864 (Arabic)
(Not supported)
EPSON Draft (Hebrew) EPSON Roman (Not supported) EPSON Courier
*1: ESC R command is effective on these character tables. *2 Not displayed in the default setting mode.
Product Description
Firmware Specifications
17
LQ-2180
Revision A
1.2.2 Interface Specifications
This section only provides information which is specific to the LQ-2180. For other information, refer to the LQ-2170 Service Manual.
1.2.2.2 Parallel Interface (Reverse Channel)
Transmission mode: Synchronization: Handshaking: Signal level: IEEE-1284 nibble mode Refer to the IEEE-1284 specification Refer to the IEEE-1284 specification IEEE-1284 level 1 device
1.2.2.1 Parallel Interface (Forward Channel)
Transmission mode: Signal level: Pin assignment: IEEE-1284 compatibility mode TTL compatible (IEEE-1284 level 1 device) The pin assignment (forward channel) is the same as for the LQ-2170 except for the functions of the pins below:
Data transmission timing: Refer to the IEEE-1284 specification Device ID: [00H][4DH] MFG: EPSON; CMD: ESCPL2,PRPXL24,BDC; MDL: LQ-2180; CLS: PRINTER; DES: EPSON[SP]LQ-2180; Pin assignment: The pin assignment (reverse channel) is the same as for the LQ-2170 except for the functions of the pins below:
Pin No. Function This line is pulled up to +5 V through 3.9 k resistor. 18 35 This line is pulled up to +5 V through 1.0 k resistor.
Pin No. Function This line is pulled up to +5 V through 3.9 k resistor. 18 35 This line is pulled up to +5 V through 1.0 k resistor.
Product Description
Firmware Specifications
18
LQ-2180
Revision A
1.3 Operation Instruction
This section provides information on the LQ-2180 control panel buttons, LED, and operations. Since the layout and functions of the control panel are mostly common to those of LQ-2170, this section only shows the information that is specific to LQ-2180. For other information, see LQ2170 Service Manual. Operation at power on Turning on the printer while pressing panel buttons executes the functions below: Table 1-15. Operations at Power On
No. Buttons (5) (4) (2) (4) + (5) (1) + (3) (3) + (5) (6) Function LQ self test Draft self test Default setting Data dump EEPROM clear Clear EEPROM for Driving Line count for ribbon change timing Bi-d adjustment 1 2 3 4 5
1.3.1 Control Panel
The control panel of this printer consists of the power switch, 6 non-lock type buttons, and 10 LEDs. The appearance of the control panel is shown in the figure below.
(6 )
D ra ft R o m a n S a n s s e rif C o u rie r P re s tig e S c rip t O th e rs
6
P a p e r O u t O p e ra te
F o n t
P itc h
1 0 c 1 2 c 1 5 c 1 7 c 2 0 c P S p i p i p i p i p i
T e a r O ff/B in
T e a B in B in C a r d r O ff 1 2
P a u se
7
M ic ro A d ju s t
3 se c .
L F /F F
L o a d /E je c t
NOTE: The area reset by the EEPROM clear is as shown in the next section. This operation, however, does not affect such adjustment values as Bi-d adjustment and TOP PE sensor adjustment.
(5 ) (7 )
(1 )
(2 )
(3 )
(4 )
Figure 1-2. Control Panel
1.3.2 Bi-directional Adjustment Function
In this mode, you can adjust the bidirectional alignment for the following three modes: 1. Bi-directional adjustment for draft mode 2. Bi-directional adjustment for draft copy mode 3. Bi-directional adjustment for LQ mode
Product Description
Operation Instruction
19
LQ-2180
Revision A
1.3.3 EEPROM Initialization
Areas reset by EEPROM clear operation (described in Section 1.3.1) are as shown in the following tables: Table 1-16. Initialization Area for EEPROM (1/2)
No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Item Character table selection Page length (rear tractor) Page length (front tractor) Page length (CSF Bin 1) Page length (CSF Bin 2) TOF adjustment value (rear tractor) TOF adjustment value (front tractor) TOF adjustment value (CSF Bin 1) TOF adjustment value (CSF Bin 2) TOF adjustment value (rear manual insertion) TOF adjustment value (front manual insertion) Bottom margin (rear tractor) Bottom margin (front tractor) Font selection Pitch selection Print direction setting I/F mode selection Auto I/F wait time setting Auto line feed Auto tear off Factory setting PC437 11 inch 11 inch 22 inch 22 inch 8.5 mm 8.5 mm 8.5 mm 8.5 mm 8.5 mm 8.5 mm 11 inch 11 inch Roman 10 cpi Bi-D Auto 10 sec Off Off
Table 1-17. Initialization Area for EERPOM (2/2)
No. 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 Item Skip over perforation High speed draft Input buffer Software 0 slash Buzzer Roll paper Auto CR (IBM) A. G. M. (IBM) Tear-off adjustment value Other font selection Bin select Manual insertion wait time Tear-off wait time Copy mode Black paper mode Paper width measure TOF minimum value I/F timing data Paper edge length Page length (rear manual insertion) Page length (front manual insertion) Factory setting Off On On ESC/P2 Off On Off Off Off 0 clear Roman T Friction Bin 1 or Tractor not Tear off 2 or 3 sec. 3 sec. Off Off On 4.2 mm BUSY 0 clear 22 inch 22 inch
Product Description
Operation Instruction
20
LQ-2180
Revision A
1.4 Main Components
The main components for the LQ-2180 are as follows. They are designed for easy disassembly and repair work. C272MAIN Board C165 PSB/PSE Board C165 PNL Board Printer Mechanism Housing (upper and lower cases)
Figure 1-3. Main Components for LQ-2180
Product Description
Main Components
21
LQ-2180
Revision A
1.4.1 C272MAIN Board
The C272MAIN Board is composed of the CPU (TMP96C141), gate array (E05B42), program ROM that integrates the CG, EEPROM, and 24 transistors used to drive the printhead. Note the C272MAIN Board has the following 4 versions; 1) Standard version, 2) NLSP version, 3) Korean version, and 4) Thai version. However, ICs are attached in two different ways, which varies depending on the version, as shown in the red boxes in the figure below.
H e a d D r iv e T R A N S IS T O R
IC 1 2 A 2 9 1 7 S L A 7 0 2 4 M C N 1
IC 1 0 P -R O M
(4 M ) (8 M )
IC 7 C G -R O M
C N 1 7 C N 1 4 C N 3 IC C N 4 C N 5 C N 6 C N 8 C N 7 C N 1 1 C N 1 0 C N 1 6 C N 1 2 C N 9 C N 1 3 IC 5 1 C P U E E P R O M T M P 9 6 C 1 4 1 IC G A T E A R R A Y E 0 5 B 4 2 3
IC 1 0 IC 7
P ro g ra m & C G ( 8 M b it) C G R O M (8 M b it)
P ro g ra m
(4 M
b it)
IC 1 0
N o t M o u n te d
IC 6
C N 1 5
C G
R O M
(8 M
b it)
IC 6
( S ta n d a r d /N L S P /T h a i)
(K o re a n )
IC 6 C N 2 ( K o r e a n V e r s io n O n ly )
Figure 1-4. C272MAIN Board
Product Description
Main Components
22
LQ-2180
Revision A
1.4.2 Printer Mechanism
Appearance of the printer mechanism for the LQ-2180 is the same as for the LQ-2170. However, please be aware of the printhead's incompatibility with the LQ-2180.
Product Description
Main Components
23
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OPERATING PRINCIPLES
LQ-2180
Revision A
2.1 Control Circuit
The control circuit of the LQ-2180 is composed of the C272MAIN board and the C165PNL board. This section describes the operations of the major components in the circuit. The following figure shows the data flow from the host computer to the printhead. Data sent from the host computer is converted to image data and transmitted to the printhead through the gate array.
2.1.1 Overview of the Control Circuit Operation
The printer's control circuit includes a CPU (TMP96C141AF/IC4) that runs at 19.66 MHz, a gate array (E05B42/IC3), a 1M bit PS-RAM (IC8), a 8M bit CG-ROM (IC6), and so on. The figure below shows the block diagram for the control circuit.
C N 1 ( P a r a lle l I/F ) C 1 6 5 P N L b o a rd D a ta IC 3 (E 0 5 B 4 2 ) C N 9 T r.(Q 4 -2 5 ) C N 8
G a te A rra y E 0 5 B 4 2
P r in t d a ta c o n v e r s io n 1
C P U T M P 9 6 C 1 4 1
O p tio n I/F P a r a lle l I/F
R A M In p u t B u ffe r
IC 1 0 (8 M
P -R O M ) IC 5 (A T 9 3 C 4 5 ) IC 4 (T M P 9 6 C )
L in e E d it B u ffe r
P r in t d a ta c o n v e r s io n 2
IC 7 (n o t m o u n te d ) IC 6 (8 M IC 8 (1 M C G )*1 P S -R A M )
D a ta la tc h a n d d a ta o u tp u t
Im a g e B u ffe r
Im a g e d a ta tra n s fe r
C N 2 (T y p e B I/F )
A d d re s s
C N 3 (fro m IC 1 2 (A 2 9 1 7 ) IC 1 1 (S L A 7 0 2 4 M ) IC 2 (P S T 5 9 2 ) C N 1 0 (P F ) C N 1 1 (C R )
P S )
C N 1 4 ( S e r ia l I/F ) C N 1 7 (F a n ) C N 6 (P E -F ro n t) C N 5 (P E -R e a r) C N 7 (T o p ) C N 4 (C R H P ) * 1 : O n ly fo r K o r e a a n d T h a i v e r s io n s
P r in th e a d d r iv e c ir c u it
C N 1 6 ( R e le a s e 2 ) C N 1 2 ( R e le a s e 1 ) C N 1 3 (P G 1 )
Figure 2-2. Data Flow
Figure 2-1. Control Circuit Block Diagram
Operating Principles
Control Circuit
25
LQ-2180
The following table lists the each function of the main components of the C272 MAIN board. Table 2-1. Functions of the Main Board
IC Name CPU Location IC4 Function Detects conditions of various sensors and controls phase change for the CR motor. Control the functions below: · Memory management · Printhead drive · Phase change for the PF motor Contains such information as the factory setting values for the various adjustments and the operational record of the printer. Contains the control program. Manages the following functions: · Buffer used to receive data · Data Extension · CPU working area Contains font data. Constant current drive IC for CR Motor Constant current drive IC for PF Motor
Revision A
2.1.2 System Reset Circuit
The reset IC (IC2) outputs a reset signal under the conditions below to feed back the status to the CPU and the gate array: The printer is turned on or off. The voltage level drops due to abnormal condition. Receiving the signal, the CPU and the gate array immediately shut off the operation of each IC to prevent the printer from falling into abnormal status caused by unstable power supply.
P S T 5 9 2 (IC 2 ) 1 V o u t M R E S V c c G N D 4 3 2 7 4 G .A (IC 3 ) /R S T C P U (IC 4 ) /R S T
Gate Array
IC3
EEPROM ROM
IC5 IC10
2 3
RAM
IC8
Figure 2-3. Reset Circuit
CG-ROM SLA7024M A2917
IC7 IC11 IC12
Operating Principles
Control Circuit
26
LQ-2180
Revision A
2.1.3 Printhead Driver Circuit
Printhead drive begins with monitoring the 35 V line currently applied. This function enables the printer to change the period of time for applying current to the printhead slightly depending on the condition. As a result, the printer can output image at a constant density. The Pin 74 (AN1) on the CPU monitors the 35 V line's condition. Also, when a high-duty job is in process, the temperature inside the printhead will rise, and if the job is continued at a high temperature, it may damage the coil. Therefore, the Pin 73 (AN0) on the CPU monitors the temperature inside the printhead. With this operation called protection operation for hot head, printing is stopped when the temperature reaches the standard level 1. As the temperature drops to the standard level 2, printing begins again at a lower speed, and then at a normal speed when the temperature lowers to the standard level 3. Once the current flows into the head drive resistor, the coil for the corresponding pin is activated with the current. The current flown into the coil is converted into energy used to rush the pin. Note there is possibility that some unused energy returns to the board, which may damage the head driver transistor. For this reason, a zener diode is attached for each transistor to ground the current so the voltage over the standard level (15 V) does not directly return to the transistor.
C N 9 # 2 ,3 ,6 ,7 ,1 0 ,1 1 ,1 4 , 1 5 ,1 8 ,1 9 ,2 2 ,2 3 Z D 2 -2 5
E 0 5 B 4 2 (IC 3 ) H D 1
T r 4 -2 7 H D 2 4 C N 8 # 1 ,4 ,5 ,8 ,9 ,1 2 ,1 3 ,1 6 , 1 7 ,2 0 ,2 1 ,2 4 H T M P
A N 0 A N 1
7 3 7 4
1 6
3 5 V
Figure 2-4. Printhead Drive Circuit
Operating Principles
Control Circuit
27
LQ-2180
Revision A
2.1.4 CR Motor Driver Circuit
The CPU (IC4) directly controls the phase change of the CR motor. SLA7024M (IC11), the driver IC for the CR motor, performs bi-polar constant current drive to detects the amount of current flowing into the motor and chops the current supplied. With this operation, current flowing into the motor coil is regulated. The CR motor driver circuit is as shown below:
2.1.5 PF Motor Driver Circuit
The gate array (IC3) manages the PF motor control. The driver IC for the PF motor, which enables the constant current drive, receives the phase change signal directly from the gate array and determines the phase to which current flows. The PF motor driver circuit is as shown below:
C P U (IC 4 ) 1 2
S L A 7 0 2 4 M (IC 1 1 ) 6 5 3 4 1 7 1 6 C N 1 1 IN A IN -A IN B IN -B A -A B -B C R A C R -A C R B C R -B
E 0 5 B 4 2 (IC 3 ) P H A S E A P H A S E B P F I0 A P F I1 A P F I0 B P F I1 B 4 3 1 2
1 2 2 1 1 9
4 3 2 6 2 1 2 3 2 4
A 2 9 1 7 (IC 1 2 )
P G O 0 P G O 1 P G O 2 P G O 3
IN A IN -A IN B IN -B
A -A B -B 3
6
C N 1 1 C R A C R -A C R B C R -B
1 8 2 1
Figure 2-5. CR Motor Driver Circuit
Figure 2-6. PF Motor Driver Circuit
Operating Principles
Control Circuit
28
LQ-2180
Revision A
2.1.6 EEPROM Control Circuit
When the printer power is turned off, the EEPROM stores the factory settings and values in the areas that are not cleared in the user setting mode and also writes those values in the RAM. This sequence is managed by the CPU (IC4), which transmits data in the serial format. The EEPROM control circuit is as shown below:
2.1.7 Sensor Circuit
Unlike the LQ-2170, both the CPU and the gate array monitor and control the corresponding sensors' conditions. Note analog voltages are all monitored by the CPU ports.
+ 5 V
+ 5 V
R e a r P E S e n s o r
+ 5 V
7 0
C P U (IC 4 )
P 4 0 P 5 3
7 6
+ 5 V H P S e n s o r R e le a s e S e n s o r 2
C P U (IC 4 ) P 7 0 P 7 1 P 7 2 P 7 3 9 1 2 3 4 1 0 1 1 1 2
A T 9 3 C 4 6 (IC 5 ) C S S K D I
F ro n t P E S e n s o r
6 8
P 3 6 6 1 1 8
R e le a s e S e n s o r 1 P 2 7 P G S e n s o r
P W ,T O P S e n s o r
7 5
A N 2
IN T 7
C o v e r O p e n S e n s o r
G A (IC 3 )
+ 5 V
D O
+ 5 V + 5 V R e le a s e 1 R e le a s e 2 1 1 6 1 1 7
Figure 2-7. EEPROM Control Circuit
Figure 2-8. Sensor Circuit
Operating Principles
Control Circuit
29
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DISASSEMBLY AND ASSEMBLY
LQ-2180
The contents of the chapter "Disassembly and Assembly" is the same as for the LQ-2170 Service Manual.
Revision A
Disassembly and Assembly
31
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ADJUSTMENT
LQ-2180
Revision A NOTE: If you omit this operation, the printer will perform Uni-D print instead of Bi-D.
4.1 Overview
The adjustment items required for the LQ-2180 are the same as for the LQ-2170. Therefore, see Table 4-1 in the LQ-2170 Service Manual and perform any necessary adjustment after disassembling/assembling the printer.
C A U T IO N
5. Double-click "LQSERIES.EXE". The program starts up and the screen below appears.
Though the conditions for each adjustment are the same as for the LQ-2170, the adjustment program used for the LQ-2180 is different. Therefore, observe the instructions given in the following sections.
< * > < * > < * > E P S O N S ID M
P r in te r S e r v ic e P r o g r a m
b o o t p ro c e s s < *> < *> < *>
P le a s e s e le c t th e m o d e l n a m e . L Q -2 L Q -2 L Q -2 F X -9 1 8 0 5 8 0 H 0 8 0 8 0
4.1.1 Pre-operation for the Adjustment Program
1. Get a continuous paper. (136-column paper should be used to avoid printing on the platen.)
C A U T IO N
,, Do not use cut sheet for the Bi-D adjustment. Since the Bi-D adjustment has to be performed with the top and bottom edges of the sheet firmly set in the paper path, use of cut sheet will not provide accurate adjustment. ,, Use single continuous paper. ,, Adjustment program for serial dot matrix printer does not run without any paper loaded. So, be sure to turn the printer on first and then load paper.
E S C :Q u it
U P /D o w n :S e le c t
E N T E R :D e te r m in e
Figure 4-1. LQSERIES.EXE Initial Screen 6. Move the cursor to "LQ-2180" and press the Enter key. 7. The following screen appears.
2. Set the release lever to the continuous paper position. 3. Connect the printer and the PC and turn the printer on. 4. Press the Load/Eject button to send the paper to the stand-by position. Then press the LF/FF button more than 10 times until the leading edge of the paper is completely out of the printer.
Adjustment
Overview
33
LQ-2180
Revision A
< * > < * > < * > E P S O N
S ID M
P r in te r S e r v ic e P r o g r a m
b o o t p r o c e s s < * > < * > < * >
< * > < * > < * > E P S O N S ID M
P r in te r S e r v ic e P r o g r a m
b o o t p ro c e s s < *> < *> < *>
S e le c t th e d e s tin a tio n . S ta n d a r d N L S P
D o y o u s ta r t th e S e r v ic e P r o g r a m ? P e r fo r m (B o o t th is P R O G R A M ) N o (R e -s e le c t m o d e l n a m e ) G o t (C h e c k th is m o d e l n a m e )
E S C :Q u it
U P /D o w n :S e le c t
E N T E R :D e te r m in e
E S C : Q u it
U P /D o w n : S e le c t
E N T E R : D e te r m in e
Figure 4-3. Main Menu Selection Screen Figure 4-2. Destination Selection Screen 8. Check the printer to be adjusted for the destination; NLSP or Standard, then select the destination and press the Enter key.
C A U T IO N
10. Select "Perform". The following screen appears. ,, Select "No" if you have input a wrong model name in the screen shown in Figure 4-1. ,, If you select "Got", the printer flashes the model name stored in the RAM to the EEPROM once and reads it again.
S E R V IC E P R O G R A M V e r s io n 1 .0 **************
C A U T IO N
Be sure to select the proper destination. If you select "Standard" despite you printer is NLSP version, the printer may not print NLSP characters.
************** L Q -2 1 8 0
9. The following screen appears.
< > < > S E R V IC E IT E M S < > < > 1 . B 2 . P 3 . S 4 . T
E S C :Q u it
i-D A r in t D e t o r P E R
d ju a ta re p e s e t
s tm e n t o n E E P R O M ly S ta r tin g d a te
E N T E R :D e te r m in e
U P /D o w n :S e le c t
Figure 4-4. Main Menu Screen
Adjustment
Overview
34
LQ-2180
Revision A
4.1.2 Bi-D Adjustment
This adjustment is made after the main board or the CR motor has been replaced. The purpose of this adjustment is to electrically correct the head wire's point of impact during Bi-D printing. The adjusted value is stored in the specific address in the EEPROM. Once the value is stored, it will not be erased if the printer is turned off or the EEPROM is reset.
C A U T IO N C A U T IO N
If the printer is in the emulation mode, characters output for the Bi-D adjustment will be garbled. If so, turn ESC/P2 on using the EEPROM Initialization mode.
,, The value "0" shown in the screen shown in Figure 4-5 is the initial value used in the program, which varies from the one stored in the EEPROM. However, if the main board has been replaced, the value in the EEPROM is replaced with "0"as the initial value. ,, The printing pattern below is a sample for the high speed mode. Be sure to perform the adjustment in draft copy mode and LQ mode as well.
s p e e d d ra ft m o d e B i- D d a ta = -1
1. Perform the pre-operation. (See Section 4.1.1.)
s p e e d d ra ft m o d e B i- D d a ta = -0
2. Select "1. Bi-D Adjustment". The following screen appears.
s p e e d d ra ft m o d e B i- D d a ta = 1
************** L Q -2 1 8 0
S E R V IC E P R O G R A M
V e r s io n 1 .0
**************
< B i-D a d ju s tm e n t> H ig h s p e e d d r a ft M o d e D ra ft c o p y M o d e L Q M o d e = = 0
W r ite to E E P R O M [E N T E R ] P r e v io u s [E S C ] P r in t o u t S e le c t s p e e d [S P A C E ] [U p /D o w n ]
= 0
0
Figure 4-6. Bi-D Pattern Sample 4. Output the patterns for the Draft Copy Mode and the LQ Mode, the rest of the three modes in the screen (Figure 4-5). Then check that the vertical lines in the middle row for each mode are aligned. (If no adjustment is needed, you can turn the printer off, not continuing to the next step.) 5. Examine the patterns for the three modes output in the previous steps, and correct the value in the screen shown in Figure 4-5 until the vertical lines for the center value (Data = 0 in Figure 4-6) are aligned.
A d ju s t v a lu e [L e ft/R ig h t]
Figure 4-5. Initial Menu of the Bi-D Adjustment 3. Press the Space key to check the current Bi-D setting condition for the High speed draft mode. The printer prints the following pattern.
Adjustment
Overview
35
LQ-2180
6. When this adjustment is completed, if you need to perform another adjustment using this program, you can continue without turning off the printer.
Revision A
4.1.3 TPE Level Reset
Make this adjustment when the main board or Top PE Sensor has been replaced. Generally, light level emitted from the photo diode in a photo sensor lowers with age. For this reason, the printer renews the current paper remaining level by detecting the black level of the platen each time the printer is turned on or paper is fed. When the TPE level is reset, FF is written and it approaches 00 as the time goes by. If this operation is not performed, paper out condition may be detected despite paper is set. 1. Perform the pre-operation. (See Section 4.1.1.) 2. Select "TPE Reset" in the main menu screen (Figure 4-4) and press the Enter key. The screen below appears.
************** L Q -2 1 8 0
S E R V IC E P R O G R A M
V e r s io n 1 .0
**************
< R e s e t T o p p a p e r a n d d e te c tio n le v e l> D o y o u w a n t to r e s e t T o p p a p e r -e n d d e te c tio n le v e l? Y e s N o
E S C :P r e v io u s U P /D o w n :S e le c t E N T E R :D e te r m in e
Figure 4-7. Screen - TPE Reset 3. Select "Yes" and press the Enter key. FF is written in EEPROM when the printer power is turned off.
Adjustment
Overview
36
LQ-2180
Revision A
4.1.4 Writing the User-characteristic Data
Use this function to check the specific records of the printer used by your customer. Also, you can renew the starting date using this program. Since there is no standardized service operation using this function, you can use it whenever necessary. 1. Perform the pre-operation. (See Section 4.1.1.) 2. Select "Set or Reply Starting Date" and press the Enter key. The screen below appears.
[To check the current status]
3. Select "Characteristic Status Code" and press the Enter key. The following screen appears.
C h a r a c te r is tic s ta tu s c o d e
1 . S 2 . T 3 . T 4 . T ta r o ta o ta o ta tin l p l p l p r ib g d r in o w r in b o e -----> g lin e o n h o g lin e n c h a n g e a t tin e r tin 9 9 c o u u r c o u tim / 1 n t --> n t in 1 1 (O d d c o u n te r ) ---> 3 5 7 7 lin e fo r g (T r ip c o u n te r ) ---> 3 5 7 7 lin e s
C A U T IO N
When using this function, the printer must be in the normally operative condition. Make sure the printer is free from any error conditions such as paper out, fatal error, and so on. Otherwise, the function is not effective.
E S C :P r e v io u s
************** L Q -2 1 8 0 S E R V IC E P R O G R A M V e r s io n 1 .0 **************
Figure 4-9. Screen - Characteristic Status Code
< * > < * > < * > S e t o r R e p ly S ta r tin g d a te < * > < * > < * > C h a r a c te r is tic s ta tu s c o d e S e t s ta r tin g y e a r / m o n th / d a te
[To renew the Starting Year / Month / Date]
4. Select "Set Starting year / month / date" and press the Enter key. The following screen appears.
E S C :Q u it
U P /D o w n :S e le c t
E N T E R :D e te r m in e
Figure 4-8. Screen - Set or Reply Starting Date
Adjustment
Overview
37
LQ-2180
Revision A
S e ttin g S ta r tin g Y e a r /M o n th /D a y
In p u t fo r m a t: 1 9 9 9 /1 /1 ---> 9 9 0 1 0 1
P le a s e in p u t 6 d ig its > >
Figure 4-10. Screen - Setting Starting Year / Month / Date 5. Input a 6-digit data. Be sure to input it correctly since this programs does not perform comparison check with the system timer. If you input a wrong data, start from the beginning.
Adjustment
Overview
38
TROUBLESHOOTING
LQ-2180
Revision A
5.1 Overview
This chapter contains flowcharts and checkpoint tables to help you troubleshoot the printer. The checkpoint tables let you identify the faulty part or unit by checking the values or ranges listed for each component.
5.2.1 Printhead
The information in this section is the same as for the LQ-2170.
5.2.2 Sensors
The check method, including test pin number and meter reading, for each sensor is the same as for the LQ-2170. However, be careful of the CN 12 and 16 that are not common to the LQ-2170. The change made for LQ-2180 is as shown below. Table 5-1. Sensor Test Points
Sensor Connector Number CN12 (Release sensor 1) CN16 (Release sensor 2) Other sensors Test Pin Number Test method Place one lead on Pin 1 and the other lead on Pin 2 and check the voltage while toggling the sensor lever. Same as for CN12 Meter reading
5.2 Troubleshooting Information
This section gives you troubleshooting information to let you test points for replaceable units.
1: Release 1 2: GND
See the LQ-2170 Service Manual.
1: Release 2 2: GND
See the LQ-2170 Service Manual.
See the LQ-2170 Service Manual.
5.2.3 Motors
The motor test points are the same as for the LQ-2170.
5.2.4 Error Codes with Indicators and Buzzer
The Error codes with Indicators and buzzer are the same as for the LQ2170.
Troubleshooting
Overview
40
LQ-2180
Revision A
5.3 Unit Level Troubleshooting
The information for this section is the same as for the LQ-2170 except for some points. The points to be changed are as follows: Table 5-2. Repairing the C272MAIN Board (1/3)
Problem The printer does not operate at all. Cause Reset IC2 is defective. Checkpoint Check the voltage waveforms of the VCC signal (CH1: IC2 pin 3) and VOUT signal (CH2: IC2 pin 2) when power is turned on. Solution Replace IC2.
Point: All flowcharts provided in this section C165 MAIN Board
272MAIN Board
Point: Flowchart 2-1 CN12
CN12 or CN16
5.4 Repairing the C165 PSB/PSE Board
The entire information for this section is the same as for the LQ-2170.
The PROM (IC10) is not selected. Check for a change in the signal from HIGH/LOW at pin 22 of IC10. Replace IC10 (or replace the main board).
5.5 Repairing the C272MAIN Board
This section provides instructions to repair the C272 MAIN board assembly. It describes various problems, symptoms, likely causes, and solutions. The checkpoint column provides proper waveforms, resistance values, and other information for each component of C272 MAIN Board.
NOTE: This information is necessary only for servicers who repair to the component level. Servicers who repair to the unit level (including all servicers in the U.S.) can ignore this section.
The PSRAM (IC8)
Check for a change in the signal from HIGH/LOW at pin 1 of the IC8.
Replace IC8 (or replace the main board).
Troubleshooting
Unit Level Troubleshooting
41
LQ-2180
Table 5-3. Repairing the C272MAIN Board (2/3)
Problem Cause Checkpoint Check the oscillator signal at pins 26 or 27 of the CRU1. If the signal is not correct, replace IC4 (or replace the main board). Otherwise, replace CRU1. IC1 is defective. IC3 is defective. IC2 is defective. Solution Problem
Revision A
Table 5-4. Repairing the C272MAIN Board (3/3)
Cause Checkpoint · Check input signal waveform at pins 1, 2, 23, and 24 of IC2. · Check output signal waveform at pins 6, 3, 18, and 21 of IC12. Solution
The printer does not operate at all.
CRU1 is defective.
Paper feed is abnormal.
If the input signal is not correct, replace IC3. If the input signal is correct and the output signal is not correct, replace the IC12.
Check input signal waveform (CH1) at pins 1, 2, 3, and 4 of IC4. Check output signal waveform at pins 8, 1, 18, and 11 of IC11. IC11 or IC4 is defective. Carriage operation is abnormal.
If the input signal is not correct, replace IC4 (or replace the main board). If the output signal is not correct, replace IC11.
· Check the output signal waveform at pin 111 of IC3.
No data is printed.,
IC3 is defective.,
If this signal is not output, replace IC3.
IC3 is defective.
Check the output signal at pins 68, 69, 70, and 71 of IC3.
If there is no output signal, replace IC3.
A particular dot fails to print.,
IC3 is defective or one of the head drive transistors is defective (Q4 Q27).
· Check the voltage waveform at pin HD1 - HD24 of IC3. · Check the voltage waveform (CH2) for each transistor.
If the head drive signal is not output, replace IC3. If the head drive signal is output, replace the head drive transistor.
Troubleshooting
Repairing the C272MAIN Board
42
LQ-2180
Revision A
5.6 Repairing the Printer Mechanism
The information for this section is also the same as for the LQ-2170 except for the point below.
Point: Table 5-8 CN12
CN12 or CN16
Troubleshooting
Repairing the Printer Mechanism
43
MAINTENANCE
LQ-2180
The contents of the chapter "Maintenance" is the same as for the LQ-2170 Service Manual.
Revision A
Maintenance
45
APPENDIX
LQ-2180
Revision A
Table 7-2. EEPROM Address Map (2/7)
Address 04H, 05H Data Page length for rear tractor Page length for front tractor Page length for CSF bin 1 Page length for CSF bin 2 TOF adjustment value for rear tractor TOF adjustment value for front tractor TOF adjustment value for CSF bin 1 TOF adjustment value for CSF bin 2 TOF adjustment value for rear manual insertion TOF adjustment value for front manual insertion Bottom margin for rear tractor Bottom margin for front tractor Font selection Data Format 1 to 22x360 (by 1/360 inch) 0000H: 11 inch (the default) 1 to 22x360 (by 1/360 inch) 0000H: 11 inch (the default) 1 to 22x360 (by 1/360 inch) 0000H: 22 inch (the default) 1 to 22x360 (by 1/360 inch) 0000H: 22 inch (the default) -60 to 360 (4.2 mm to 8.5 mm + 1 inch, by 1/360 inch) -60 to 360 (4.2 mm to 8.5 mm + 1 inch, by 1/360 inch) -60 to 360 (4.2 mm to 8.5 mm + 1 inch, by 1/360 inch) -60 to 360 (4.2 mm to 8.5 mm + 1 inch, by 1/360 inch) -60 to 360 (4.2 mm to 8.5 mm + 1 inch, by 1/360 inch) -60 to 360 (4.2 mm to 8.5 mm + 1 inch, by 1/360 inch) 1 to 22x360 (by 1/360 inch), 0000H: 11inch (the default) 1 to 22x360 (by 1/360 inch), 0000H: 11inch (the default) 0: 1: 2: 3: Roman Draft Sans serif Courier 4: Prestige 5: Script 6: Others
(the default)
7.1 EEPROM Address Map
This chapter provides EEPROM Address Map for LQ-2180 and component layouts and circuit diagram for the C272 Main Board.
Q-pit data 0000H
(11 inch)
Factory setting 0000H
(11 inch)
NOTE: The data of two or more bytes are assigned in such was as lower byte to lower address, higher byte to higher address.
Table 7-1. EEPROM Address Map (1/7)
Address Data Data Format Q-pit data 0000H Factory setting 0000H
06H, 07H
0000H
(11 inch)
0000H
(11 inch)
08H, 09H
0000H
(22 inch)
0000H
(22 inch)
0AH, 0BH
0000H
(22 inch)
0000H
(22 inch)
00H, 01H (reserved) Area 1 02H, 03H Character table selection 0: PC437 1: PC850 2: PC860 3: PC863 4: PC865 5: PC861 6: BRASCII 7: Abicomp 8: ISO Latin 1 9: Roman 8 10:PC437 Greek 11:PC852 12:PC853 13:PC855 14:PC857 15:PC864 16:PC866 17:PC869 18:ISO Latin 1T 37:Italic U.S.A. 38:Italic France 39:Italic Germany I 40:Italic U.K. 19:ISO 8859-7 20:MAZOWIA 21:Code MJK 22:Bulgaria 23:Estonia 24:PC774 25:ISO 8859-2 26:PC866 LAT 27:PC866 UKR 28:Hebrew 7 29:Hebrew 8 30:PC862 31:PCAPTEC 32:PC708 33:PC720 34:PCAR864 35:PC858 36:ISO 8859-15 41:Italic Denmark 42:Italic Sweden 43:Italic Italy 44:Italic Spain
0CH, 0DH 0000H 0000H
(PC437)
0000H
(8.5 mm)
0000H
(8.5 mm)
0EH, 0FH 10H, 11H 12H, 13H 14H, 15H
0000H
(8.5 mm)
0000H
(8.5 mm)
0000H
(8.5 mm)
0000H
(8.5 mm)
0000H
(8.5 mm)
0000H
(8.5 mm)
0000H
(8.5 mm)
0000H
(8.5 mm)
16H, 17H
0000H
(8.5 mm)
0000H
(8.5 mm)
18H, 19H 1AH, 1BH 1CH
0000H
(11 inch)
0000H
(11 inch)
0000H
(11 inch)
0000H
(11 inch)
0000H
0000H
00H
(Roman)
00H
(Roman)
Appendix
EEPROM Address Map
47
LQ-2180
Table 7-3. EEPROM Address Map (3/7)
Address 1DH Data Pitch selection 0: 10 cpi 1: 12 cpi 2: 15 cpi Data Format 3: 17 cpi 4: 20 cpi 5: Proportional Q-pit data 00H (10 cpi) 00H 0: Bi-d. 1: Uni-d. 2: Auto 0: Auto I/F selection 1: Parallel I/F 2: Type-B I/F 10:10 sec. 30:30 sec. 00:10 sec. (the default) b0: Auto line feed 0: Off, 1: On b1: Auto tear off 0: Off, 1: On b2: Skip over perforation 0: Off, 1: On b3: High speed draft 0: On, 1: Off b4: Input buffer 0: On, 1: Off b5: (reserved) b6: (reserved) b7: (reserved) 00H (Bi-d.) 00H (Auto) 0AH
(10 sec.)
Revision A
Table 7-4. EEPROM Address Map (4/7)
Factory setting 00H (10 cpi) 00H 00H (Bi-d.) 00H (Auto) 0AH
(10 sec.)
Address 23H
Data Software 0 slash Buzzer Roll paper Auto CR A. G. M. -----
Data Format b0: Software 0: ESC/P2, 1: IBM 2391 Plus b1: 0 slash, 0: Off, 1: On b2: Buzzer 0: On, 1: Off b3: Roll paper 0: Off, 1: On b4: Auto CR (IBM) 0: Off, 1: On b5: A. G. M. (IBM) 0: Off, 1: On b6: (reserved) b7: (reserved) -128 to +127 (by 1/360 inch) 0: Roman 1: Sans Serif H 2: OCR-B 3: Orator 4: Orator-S 5: Script C
Q-pit data 00H
Factory setting 00H
1EH 1FH
(reserved) Print direction setting I/F mode selection
20H
21H
Auto I/F wait time setting
22H
Auto line feed Auto tear off Skip over perforations High speed draft Input buffer -------
00H
00H
24H, 25H 26H
Tear-off adjustment value Other font selection Backup flags 1 Copy mode Backup flags 2 In tear-off state Bin select
0000H 00H
0000H 00H
27H
00H 0: Friction Bin 1 or Tractor not Tear off 1: Friction Bin 1 2: Friction Bin 2 3: Friction Card 4: Tractor & Tear off
00H
28H
00H
00H
Appendix
EEPROM Address Map
48
LQ-2180
Table 7-5. EEPROM Address Map (5/7)
Address 29H Data Panel mask pattern 1 Data Format b0: LOAD function b1: EJECT function b2: FONT selection b3: PITCH selection b4: TEAR OFF function b5: BIN selection b6: Draft self test b7: LQ self test b0: LF function b1: FF function b2: Micro Adjust function b3: Pause function b4: Data dump b5: Default setting b6: Bi-d. adjustment b7: (reserved) 3 to 30 (by 0.1 sec.), 00H: 2 sec when Normal mode. (same as 3 sec when copy mode. default) 3 to 30 (by 0.1 sec.), 00H: 3 sec. (the default) Q-pit data 00H Factory setting 00H Address 3CH 3DH 3EH 3FH
Revision A
Table 7-6. EEPROM Address Map (6/7)
Data Starting Year Starting Month Starting Date Black paper mode paper width measure Data Format 0 - 99 (the last two figures of Anno Domini) 1 - 12 1 - 31 b0: black paper mode 0: Off, 1: On b1: paper width measure 0: On, 1: Off b2: b2 to b7: (reserved) -120 to -60, 0: -60 (4.2 mm) Value out of the range above is considered -60. bit0-3: BUSY timing data bit4-7: XAACK timing data Q-pit data 00H 00H 00H 00H Factory setting 00H 00H 00H 00H
2AH
Panel mask pattern 2
00H
00H 40H to 41H TOF Minimum value
00H
00H
42H
I/F timing data
00H
00H
43H 00H
(2or3 sec.)
(complement of 42H)
FFH 00H 0000H 1 to 22x360 (by 1/360 inch), 0000H: 22 inch (the default) 1 to 22x360 (by 1/360 inch), 0000H: 22 inch (the default) 00H to 09H 0000H
(22 inch)
FFH 00H 0000H 0000H
(22 inch)
2BH
Manual insertion wait time Tear-off wait time
00H
(2or3 sec.)
44H to 5DH 5EH, 5FH 60H, 61H 62H, 63H 64H to 66H 67H
(reserved) Paper edge length Page length for rear manual insertion Page length for front manual insertion Sub-number for customization (reserved)
2CH
00H (3 sec.) 00H
00H (3 sec.) 00H 00H 000000 00H 000000 00H 000000 00H
2DH to 2EH 2FH
(reserved) Copy mode 0: Off 1: On
00H 000000 00H 000000 00H 000000 00H
0000H
(22 inch) 000000H
(Standard)
0000H
(22 inch) 000000H
(Standard)
30H-33H Driving line count for ribbon change timing 34H-37H Driving Hour 38H3BH Driving Line Count
0 - 0FFFFFFFFH (count)
0 - 0FFFFFFFFH (minutes) 0 - 0FFFFFFFFH (count)
00H
00H
Appendix
EEPROM Address Map
49
LQ-2180
Table 7-7. EEPROM Address Map (7/7)
Address Area 2 68H 69H 70H 71H Area 3 72H 73H 74H 75H 76H 77H 78H 79H 7AH to 7FH Vp adjustment value Vp adjustment value (complement of 72H) Bi-d adjustment value for high speed draft / draft mode Bi-d adjustment value for draft copy mode Bi-d adjustment value for LQ mode (reserved) TPE level TPE adjustment position (reserved) -10 to +10 (by 1/180 inch) -12 to +12 (by 1/720 inch) -12 to +12 (by 1/720 inch) -12 to +12 (by 1/720 inch) 80H 7FH 00H 00H 00H 00H FFH 00H 00H *a) *a) *a) *a) *a) 00H FFH 00H 00H Market IBM character table (reserved) Check sum of Area 2 0: Standard version 1: NLSP version 0: Table2 1: Table1 00H 00H 00H 00H 00H 00H 00H 00H Data Data Format Q-pit data Factory setting
Revision A
*a) These data are fixed by each printer hardware in the factory. They should not be changed afterwards.
Appendix
EEPROM Address Map
50
LQ-2180
Revision A
7.2 Connector Summary
The following figure shows how primary components are connected.
P r in te r M e c h a n is m
P F M o to r C R M o to r P G S e n s o r
The table below shows the cable alignment of the C272 Main Board. Table 7-8. C272 Main Board Connection
Board Connector CN1 CN2 CN3 CN4 CN5 CN6 CN7 CN8 C272 MAIN Board CN9 CN10 Function Parallel interface Type B interface C165 PSB/PSE board assembly HP sensor Rear PE sensor Front PE sensor TOP sensor Printhead (F) Printhead (R) PF motor CR motor Release lever position sensor 1 PG sensor CSF PNL board assembly Release lever position sensor 2 Fan Pins 36 36 12 3 3 2 4 18 16 4 5 2 2 10 22 2 2
R e le a s e L e v e r P o s itio n S e n s o r P E - R e a r S e n s o r P E - F ro n t S e n s o r H P S e n s o r P W S e n s o r
P r in th e a d
F a n
C a s e O p e n S e n s o r
C N 2
CN11 CN12 CN13 CN14
C N 1 5 C N 1 7 C N 1 3 C N 1 1 C N 1 0 C N 8 C N 9 C N 1 2 C N 1 6
C 1 6 5 P N L B o a rd
C N 1
CN15 CN16 CN17
C N 4
C N 6
C S F
C N 1 4 C N 1 C N 2
C 2 7 2 M A IN B o a r d A s s e m b ly
C N 3
C N 7
C N 5
P a r a lle l I/F
Figure 7-1. Cable Connections
O p tio n I/F
H o s t C o m p u te r
C 1 6 6 P S B /P S E B o a rd
Appendix
Connector Summary
51
LQ-2180 NOTE: The table below provides information of the connector that vary from C165 Main Board used in LQ-2170.
Figure 7-2. Connector Pin Assignment (Changed/new items only)
LQ-2170 (C165MAIN) Connector 1 CN14 CSF Function Pin alignment 1: A 2: B 3: -A 4: -B 5: HOLD 6: +5V 7: GND 8: GND 9: +35V 10:+35V 1: 2: 3: 4: --RELEASE 1 GND RELEASE 2 GND Connector CN14 CSF LQ-2180 (C272MAIN) Function Pin alignment 1: +35V 2: +5V 3: HOLD 4: +35V 5: -A 6: B 7: GND 8: GND 9: A 10:-B 1: RELEASE 1 2: GND 1: RELEASE 2 2: GND 1: PE 2: GND
Revision A
2
CN12
Release lever position
CN12 CN16 CN17
Release lever position Release lever position Fan
3
---
---
Appendix
Connector Summary
52
LQ-2180
Revision A
7.3 Component Layout
Figure 7-3. C272Main Component Layout - Component Side
Appendix
Component Layout
53
LQ-2180
Revision A
Figure 7-4. C272Main Component Layout - Soldering Side
Appendix
Component Layout
54
LQ-2180
Revision A
7.4 Circuit Diagram
See the following page for the dircuit digram of the C272 Main Board.
Appendix
Circuit Diagram
55