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EPSON FX-1180/880 Service Manual
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EPSON FX-1180/880
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4008484
NOTICE
T T T T
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. NO WORK 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 ANTI-STATIC 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 procedures of FX1180/880. The instructions and procedures included herein are intended for the experienced repair technicians, and attention should be given to the precautions on the preceding page. The chapters are organized as follows:
CHAPTER 1. CHAPTER 2. CHAPTER 3. CHAPTER 4. CHAPTER 5. CHAPTER 6.
PRODUCT DESCRIPTIONS OPERATING PRINCIPLES TROUBLESHOOTING DISASSEMBLY AND ASSEMBLY ADJUSTMENTS MAINTENANCE
Provides a general overview and specifications of the product.
Describes the theory of electrical and mechanical operations of the product.
Provides the step-by-step procedures for troubleshooting.
Describes the step-by-step procedures for disassembling and assembling the product.
Provides Epson-approved methods for adjustment.
Provides preventive maintenance procedures and the lists of Epson-approved lubricants and adhesives required for servicing the product.
APPENDIX
Provides the following additional information for reference: · Connector pin assignments · Electric circuit boards components layout · Exploded diagram · Electrical circuit boards schematics
REVISION STATUS
Rev. A B Date 1997/09/30 1998/04/02 Page(s) All All Contents First release Second release owing to release of FX-1180
TABLE OF CONTENTS
PRODUCT SPECIFICATION
1.1 SPECIFICATION .................................................................................. 1-1 1.2 OPERATION......................................................................................... 1-7
1.2.1 Control panel ................................................................................................ 1-7 1.2.2 Switches ........................................................................................................ 1-7 1.2.2.1 Usual Operation .................................................................................. 1-7 1.2.2.2 Operations at Power-on ...................................................................... 1-8 1.2.3 Indicators ( LEDs ) ........................................................................................ 1-9 1.2.4 Buzzer............................................................................................................ 1-9 1.2.5 Default Setting Mode 1 ............................................................................... 1-10 1.2.5.1 Setting Method .................................................................................. 1-10 1.2.5.2 Setting Items ..................................................................................... 1-10 1.2.6 Default Setting Mode 2 ............................................................................... 1-11 1.2.6.1 Setting Items ..................................................................................... 1-11 1.2.7 EEPROM Clear Function ............................................................................ 1-12 1.2.8 Bi-D Adjustment.......................................................................................... 1-13
OPERATING PRICIPLES
2.1 MAIN COMPONENTS .......................................................................... 2-1
2.1.1 C229MAIN Board........................................................................................... 2-1 2.1.2 C229PSB/PSE/PSH Board............................................................................ 2-1
2.2 PRINTER MECHANISM ....................................................................... 2-2
2.2.1 Printhead ....................................................................................................... 2-2 2.2.2 Paper Feed Mechanism................................................................................ 2-2 2.2.3 Carriage Movement Mechanism.................................................................. 2-2 2.2.4 Tractor Feed Mechanism ............................................................................. 2-2 2.2.5 Platen Gap Adjustment Mechanism............................................................ 2-2 2.2.6 Ribbon Feed Mechanism ............................................................................. 2-2
2.3 CIRCUIT OPERATION ......................................................................... 2-4
2.3.1 C229PSB/PSE/PSH Power Supply Circuit .................................................. 2-4 2.3.2 C229MAIN Board Circuit .............................................................................. 2-5
TROUBLESHOOTING
3.1 OVERVIEW .......................................................................................... 3-1
3.1.1 Main Component Checking Point ............................................................... 3-1 3.1.2 Error............................................................................................................... 3-3
3.2 UNIT LEVEL TROUBLESHOOTING .................................................... 3-4 3.3 UNIT REPAIRING OF THE POWER SUPPLY BOARD ..................... 3-11 3.4 UNIT REPAIRING OF THE MAIN BOARD......................................... 3-13 3.5 REPAIRING THE PRINTER MECHANISM......................................... 3-16
DISASSEMBLY AND ASSEMBLY
4.1 OVERVIEW .......................................................................................... 4-1
4.1.1 Disassembly Precautions ........................................................................... 4-1 4.1.2 Tools and Instruments ................................................................................. 4-1 4.1.3 Service Check After Repair.......................................................................... 4-2 4.1.4 Abbreviations for Small Parts...................................................................... 4-3
4.2 DISASSEMBLY AND ASSEMBLY....................................................... 4-4
4.2.1 Printhead Removal ....................................................................................... 4-5 4.2.2 HP (Home Position) Detector Removal....................................................... 4-6 4.2.3 Pre-disassembly Procedures ...................................................................... 4-7 4.2.4 Upper Housing Removal .............................................................................. 4-8 4.2.5 C229MAIN Board Removal........................................................................... 4-9 4.2.6 C229PSB/PSE/PSH Board Removal.......................................................... 4-11 4.2.7 ROM Removal ............................................................................................. 4-12 4.2.8 Platen Removal........................................................................................... 4-13 4.2.9 Printer Mechanism Removal...................................................................... 4-14 4.2.10 Printer Mechanism Disassembly............................................................. 4-15 4.2.10.1 CR Motor Removal.......................................................................... 4-15 4.2.10.2 PF Motor Removal .......................................................................... 4-16 4.2.10.3 PF Gear Train Disassembly ............................................................ 4-17 4.2.10.4 PG (Platen Gap) Detector Removal ................................................ 4-18 4.2.10.5 Release Detector Removal ............................................................. 4-18 4.2.10.6 Front PE (Paper End) Detector Removal ........................................ 4-19 4.2.10.7 Rear PE Detector Removal............................................................. 4-19 4.2.10.8 Carriage Assembly Removal........................................................... 4-20 4.2.10.9 Rear Paper Guide Assembly Removal............................................ 4-21 4.2.10.10 Ribbon Drive (RD) Assembly Removal ......................................... 4-22
ADJUSTMENT
5.1 ADJUSTMENT OVERVIEW ................................................................. 5-1
5.1.1 Required Adjustment ................................................................................... 5-1 5.1.2 Adjustment Tools ......................................................................................... 5-1
5.2 ADJUSTING AND RESETTING THE PRINTER................................... 5-2
5.2.1 Platen Gap Adjustment ................................................................................ 5-2 5.2.2 Factory Setting.............................................................................................. 5-4 5.2.3 Bi-D Adjustment............................................................................................ 5-6
MAINTENANCE
6.1 PREVENTIVE MAINTENANCE ............................................................ 6-1 6.2 LUBRICATION ..................................................................................... 6-2
APPENDIX
7.1 CONNECTOR SUMMARY ................................................................... 7-1 7.2 COMPONENT LAYOUT ....................................................................... 7-6 7.3 DIMENSIONS AND WEIGHT ............................................................... 7-9 7.4 EXPLODED DIAGRAM ...................................................................... 7-11 7.5 CIRCUIT DIAGRAM ........................................................................... 7-16
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PRODUCT SPECIFICATION
FX-1880/880 Service Manual Chapter 1 Product Description
1.1 SPECIFICATION
The FX-1880/880 is a small foot, 9 pins serial impact dot matrix printer. The main specification is as follows; HARDWARE SPECIFICATIONS Print method Print pin arrangement Print pin diameter RESOLUTION Table 1-1. Resolution ( dpi ) Printing mode High speed draft Draft NLQ Bit image PRINTING SPEED Table 1-2. Printing Speed (cps) and Printable Columns Character Printable Printing speed pitch column Normal Copy High speed Draft 10cpi 136 410cps 345cps FX-1180 Draft 10cpi 136 310cps 260cps NLQ 10cpi 136 77cps 65cps High speed Draft 10cpi 80 410cps 345cps FX-880 Draft 10cpi 80 310cps 260cps NLQ 10cpi 80 78cps 65cps · When the power supply voltage drops to the lower limit, the printer stops printing once and then starts printing rest data on that line again more slowly than before. · When the head temperature rises to the upper limit, the printer stops printing once. If the head temperature falls down to the normal level, it begins to print again more slowly than before. FEEDING METHOD Friction feed Push tractor feed Push & Pull tractor feed Pull tractor feed FEED SPEED Normal mode Copy mode FEEDER Front push tractor Rear push tractor CSF ( Option, bin1 / bin2 ) Pull tractor ( Option ) Roll paper holder ( Option ) Front, Rear Front, Rear Front, Rear Front, Rear, Bottom 62 ms 0.127MPS ( 5.0 IPS) 83 ms 0.078MPS (3.1 IPS) 1/6 inch feed continuos feeding 1/6 inch feeding continuos feed Printing mode Horizontal density 90 dpi 120 dpi 240 dpi 60, 72, 80, 90 or 120 dpi 120 or 240 dpi Vertical density 72 72 144 72 72 Adjacent dot print No No No Yes No 9 pins Impact dot matrix 9x1 0.29 mm ( 0.0114 inch )
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PAPER / MEDIA Table 1-3. Cut Sheet Insertion Width Length Thickness Weight Quality Front entry Rear entry FX-1880: 148 ~ 420mm (5.8 ~ 16.5") FX-880: 148 ~ 257mm (5.8 ~ 10.1") 182 ~ 364mm ( 7.2 ~ 14.3 ) 92 ~ 364mm ( 3.6 ~ 14.3") 0.065 ~ 0.14mm ( 0.0025~ 0.0055") 2 52 ~ 90g/m (14 ~ 24 lb) Plain paper, Reclaimed paper , not curled, not folded, not crumpled Table 1-4. Cut Sheet ( Multi-Part ) Insertion Width Length Copies Total thickness Weight Quality Jointing Front entry FX-1880: 148 ~ 420mm (5.8 ~ 16.5") FX-880: 148 ~ 257mm (5.8 ~ 10.1") 182 ~ 364mm ( 7.2 ~ 14.3") 1(original) + 5 0.12 ~ 0.46mm ( 0.0047 ~ 0.018" ) 2 40 ~ 58g/m ( 12 ~ 15 lb) Plain paper, Reclaimed paper, not curled, not folded, not crumpled Line glue at the top or one side of a form Table 1-5. Envelope Insertion Envelope Width Length Total thickness Rear entry only 165mm ( 6.5" ) 241mm ( 9.5" ) 92mm ( 3.6" ) 105mm ( 4.1") 0.16 ~ 0.52mm ( 0.0063 ~ 0.020" ) The difference of thickness at the printable area is within 0.25mm ( 0.0098" ) 2 45 ~ 90g/m ( 12 ~ 24 lb ) BOND paper, plain paper, AIR MAIL, no glue at a flap, not curled, not folded, not crumpled Table 1-6 Continuous Paper ( Single Sheet and Multi-Part ) Insertion Width Length Copies Total thickness Weight Weight ( multi part) Quality Jointing Front entry, Rear entry, Bottom entry FX-1880: 101.6 ~ 406.4mm ( 4 ~ 16" ) FX-880: 101.6 ~ 254mm ( 4 ~ 10" ) 101.6 ~ 558.8mm ( 4 ~ 22" ) 1(original) + 5 0.065 ~0.46mm ( 0.0025 ~ 0.018" ) 2 52 ~ 82g/m ( 14 ~ 22 lb ) 2 40 ~ 58g/m ( 12 ~ 15 lb ) Plain paper, Reclaimed paper, carbon less multi part paper Point glue or both sides paper staple
Weight Quality
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Table 1-7. Continuous Paper with Labels Insertion Label size Front entry, Bottom entry See the figure below;
6 3 .5 m m
(2 .5 ")
( 1 5 /1 6 " )
L a b e l
2 3 .8 m m
R 2 .5 m m
( 0 .1 " )
Base sheet width Base sheet length Base sheet thickness Total thickness Label weight Quality
Figure 1-1. Label FX-1180: 101.6 ~ 406.4mm (4 ~ 16") FX-880: 101.6 ~ 254.0mm (4 ~ 10") 101.6 ~ 558.8mm ( 4 ~ 22" ) 0.07 ~ 0.09mm ( 0.0028 ~ 0.0035" ) 0.16 ~ 0.19mm ( 0.0063 ~ 0.0075" ) 2 68g/m (17 lb) A very continuous form labels, a very mini-line labels or the same quality labels Table 1-8. Roll Paper
Insertion Width Thickness Weight Quality
Rear entry 216mm ( 8.5" ) 0.07 ~ 0.09mm ( 0.0028" ~0.0035") 2 52 ~ 82g/m ( 14 ~ 22 lb ) Plain paper, not curled, not folded, not crumpled
TYPEFACE Bit map Font
Bar code fonts
EPSON Draft 10cpi, 12cpi, 15cpi EPSON Roman 10cpi, 12cpi, 15cpi, Proportional EPSON Sans Serif 10cpi, 12cpi, 15cpi, Proportional EAN-13, EAN-8, Interleaved 2 of 5, UPC-A, UPC-E, Code 39, Code 128, POSTNET
CHARACTER TABLES Standard version NLSP version INPUT BUFFER 0 Kbytes / 32 Kbytes
11 tables 35 tables
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ELECTRICAL SPECIFICATION 120 V version Rated voltage AC 120 V Input voltage range AC 103.5 to 132 V Rated frequency range 50 to 60 Hz Input frequency range 49.5 to 60.5 Hz Rated current 0.7 A ( Max. 1.6 A ) Power consumption FX-1180: Approx. 36 W ( ISO/IEC10561 Letter pattern) FX-880: Approx. 34 W ( ISO/IEC10561 Letter pattern) Energy Star compliant Insulation resistance Min. 10 M ( between AC line and chassis) Dielectric strength AC 1000 V rms 1 min. or AC 1200 V rms 1 sec.(between AC line and chassis) 230 V version Rated voltage AC 220 to 240 V Input voltage range AC 198 to 264 V Rated frequency range 50 to 60 Hz Input frequency range 49.5 to 60.5 Hz Rated current 0.4 A ( Max. 0.9 A ) Power consumption FX-1180: Approx. 36 W ( ISO/IEC10561 Letter pattern) FX-880: Approx. 34 W ( ISO/IEC10561 Letter pattern) Energy Star compliant Insulation resistance Min. 10 M ( between AC line and chassis) Dielectric strength AC 1000 V rms 1 min. or AC 1200 V rms 1 sec. ( between AC line and chassis)
UPS Version Rated voltage Input voltage range Rated frequency range Input frequency range Rated current Power consumption
Insulation resistance Dielectric strength
AC 100 to 120 V / AC220 to AC240V AC 90 to 132 V / AC198 to 264V 50 to 60 Hz 49.5 to 60.5 Hz 0.8A (Max. 20.A) / 0.5 A (Max. 1.0 A ) Approx. 38 W ( ISO/IEC10561 Letter pattern) Energy Star compliant Min. 10 M ( between AC line and chassis, DC500V) AC 1500 V rms 1 min. ( between AC line and chassis)
ACOUSTIC NOISE 55 dB(A)
( ISO 7779 pattern )
ENVIRONMENTAL CONDITION Temperature 5 to 35 °C ( Operating ) -30 to 60 °C ( Non-operating) Humidity 10 to 80 % ( Operating without condensation ) 0 to 85 % ( Non-operation without condensation)
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RELIABILITY Total print volume MTBF Print head life RIBBON CARTRIDGE Type Color Ribbon life SAFETY APPROVALS 120 V version Safety standards EMI 230 V version Safety standards EMI
6.5 million lines ( Except Print head) 10000 POH approx. 200 million characters
Fabric Black Approx. 3 million characters ( Draft 10 cpi, 14 dots / character)
UL 1950, CSA C22.2 No. 950 FCC part 15 subpart B class B, CSA C108.8 class B EN60950 ( VDE, NEMKO ) EN55022 ( CISRP pub.22 ) class B AS/NZS.3548 class B UL 1950, CSA C22.2 No. 950 FCC part 15 subpart B class B, CSA C108.8 class B
UPS Version Safety standards EMI
CE MARKING 230 V version Low Voltage Directive 73/23/EEC EN60950 EMC Directive 89/336/EEC EN55022 class B EN61000-3-2 EN61000-3-3 EN50082-1 IEC801-2 IEC801-3 IEC801-4 INTERFACE Bi-directional parallel Interface ( IEEE-1284 nibble mode supported ) Type-B I/F level 2 ( Option ) CONTROL CODE ESC/P IBM 2380 Plus emulation PHYSICAL SPECIFICATIONS FX-1880: [Dimensions] 590mm( W ) x 350mm ( D ) x 54mm ( H ) [Weight] Approx. 9.6Kg FX-880: [Dimensions] 415mm( W ) x 350mm ( D ) x 154mm ( H ) [Weight] Approx. 7.6 kg
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CONSUMABLES & OPTIONS Table 1-9. Consumable & Option Consumables Ribbon cartridge Ribbon pack Options High capacity cut sheet feeder ( Bin1 ) Single bin cut sheet feeder ( Bin 2 ) Pull tractor unit Roll paper holder Front paper guide Front sheet guide Serial Interface card 32KB intelligent serial Interface card 32KB intelligent Interface card Local Talk I/F card 32KB IEEE-1284 I/F card Coax I/F card Twinax I/F card IEEE-1284 parallel I/F card Ethernet I/F card "*": According to each destination. FX-1180 #8755 #8758 C80640* C80639* C80021* #8310 C81403* C81401* C82305* / C82306* C82307* / C82308* C82310* / C82311* C82312* C82313* C82314* C82315* C82345* C82357* Code No. FX-880 #8750 #8758 C80638* C80637* C80020* #8310 C81402* C81400* C82305* / C82306* C82307* / C82308* C82310* / C82311* C82312* C82313* C82314* C82315* C82345* C82357*
Figure 1-2. Exterior View of the FX-880(FX-1180)
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1.2 OPERATION
This section describes the operations equipped with this printer.
1.2.1 Control panel
The control panel of this printer consists of 5 switches and 5 LEDs, as shown below;
F o n t
D ra D ra R o m R o m S a n S a n ft ft C a n a n s s s s
T e a r O ff/B in
T e a r o ff B in 1 B in 2
L F /F F
L o a d /E je c t
P a u s e
P a p e r O u t O p e ra te
o n d e n s e d C o n d e n s e d e r if e r if C o n d e n s e d
M ic r o A d ju s t
3 s e c
Figure 1-3. Panel Operation Outline
1.2.2 Switches
1.2.2.1 Usual Operation
In the normal mode, pressing panel switches executes the following functions; (1) Operate This switch turns the printer on and off. It is the secondary switch in the power supply circuit.
CAUTION
Unplug the power cable from the AC Inlet when connecting/ disconnecting the Interface cable to/from the printer.
(2) Pause This switch alternates printer activity between printing and non-printing states. If this button is held down for over 3 seconds when the printer is in the non-printing status, the Micro Adjust function and Font selection are enabled. If it is pressed again, these function are disabled. (3) Load/Eject - Loads the paper when the printer is out of paper. - Ejects the paper to the paper park. (4) LF/FF - Feeds a line if pressed shortly. - Feeds the continuos paper or eject the cut sheet. (5) Tear Off Advances the continuos paper to the Tear-OFF position. If it is pressed again, the paper is moved to the TOF position. (6) Bin Selects the CSF bin number when the CSF is used. (7) Font Selects the font from the list on the panel when the Micro Adjust function is enabled. (8) Micro Adjust The Micro Adjust switch is available in the Micro Adjust mode. Micro switch executes micro feed forward or backward by 1/216 inch one by one. The TOF adjustment is enabled in the TOF position after loading the paper, and the Tear-off adjustment is enable in the Tear-off position.
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1.2.2.2 Operations at Power-on
Pressing the specified switch (switches) while turning on the printer enables the following special functions: 1. Self test - Switches : Function: - Switch: Function: "Load / Eject" while turning on the printer. Executes the printing NLQ self test printing. "LF / FF" while turning on the printer. Executes the Draft self test printing.
2.
Data dump mode Switches : Function: "Load / Eject" and "LF / FF" switches while turning on the printer. Executes the data dump function.
3.
Clearing the line counter value for the ribbon life in the EEPROM Switches: Function: "Tear-off / Bin" and "Pause" while turning on the printer. Clears the line counter value stored in the EEPROM.
4.
Bi-D adjustment Switches: Function: "Pause" switch while turning on the printer. Executes the Bi-D adjustment.
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1.2.3 Indicators ( LEDs )
This printer has the following indicators to indicate its current condition, as shown in the table below: 1. Pause ( Orange ) · Comes On when the printer is paused, and goes Off when the printer is not paused. · Blinks when the Micro adjust function and the Font selection are enabled or the printhead is in the overheated condition. Paper Out ( Red ) · Comes On when the printer is in the Paper out condition. · Blinks when the paper eject error has occurred . Tear Off / Bin ( Green ) · Blinks when the continuos paper is in the tear off position. · Comes On when the CSF Bin1 is selected, and goes Off when the CSF Bin2 is selected. Font ( Green ) Indicates the font selections. Table 1-10. LED Status Printer status Pause Paper out error Release lever error Paper eject warning Head hot warning Micro adjust & Font selection Tear off Bin selection Font selection Fatal error Font According as font selection Blinks Tear-Off / Bin According as paper path According as bin selection Blinks Pause On On On On Blinks Blinks Blinks Paper Out On Blinks Blinks Blinks
2.
3.
4.
1.2.4 Buzzer
This printer has the buzzer to indicate its current condition with the following indications: Table 1-11. Buzzer Status Printer status Beep sounds OOO Paper out error Release lever error OOO Paper eject warning O Illegal panel operation Note: The symbols used in the table represents the following: " O " = A beep sounds for approximately 100 ms with the interval of approximately 100 ms. " " = A beep sounds for approximately 500ms with the interval of approximately 100ms.
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1.2.5 Default Setting Mode 1
You can change some parameters that the printer refers to at printer initialization.
1.2.5.1 Setting Method
Refer to the following flowchart for the default setting mode 1.
S T A R T
H o ld in g d o w n T e a r o f f / B in s w itc h , tu r n o n th e p r in te r .
R e fe r r in g to th e F o n t a n d T e a r o ff/ B in L E D s , p u s h T e a r o f f /B in s w itc h to s e le c t th e m e n u .
L a n g u a g e s e le c tio n s h e e t R e fe r r in g to th e P a u s e a n d P a p e r O u t L E D s , p u s h L o a d /E je c t s w itc h to c h a n g e th e s e ttin g v a lu e . P u s h d o w n L o a d /E je c t s w itc h to s e le c t th e a im e d la n g u a g e .
C h a n g e th e la n g u a g e ?
Y E S
N O
F in is h ?
P u s h d o w n T e a r o f f / B in s w itc h . T u r n th e p r in te r o ff to s a v e th e s e ttin g s . S e le c t th e m e n u , s e le c t m e th o d a n d c u r r e n t s e ttin g a r e p r in te d .
E N D
Figure 1-4. Flowchart for Default Setting Mode 1
1.2.5.2 Setting Items
Setting values available for the default setting mode including factory settings are as shown in the following table: Table 1-12. Setting Values Available for Default Setting Mode 1 Items Setting values (BOLD font : factory setting) On, Off On, Off On, Off Bi-D, Uni-D Auto, Parallel, Option 10 sec., 30 sec. ESC/P, IBM 2380 Plus 0, Ø On, Off On, Off On, Off On, Off table 2, table 1
Skip over perforation Auto tear off Auto line feed Print direction I/F mode Auto I/F wait time Software 0 slash High speed draft Input buffer Buzzer Auto CR ( IBM 2380 Plus )*1 IBM character table ( IBM 2380 Plus )*1 *1: This setting is effective when the IBM 2380 Plus emulation is selected only.
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1.2.6 Default Setting Mode 2
Refer to the following flowchart for the default setting mode 2.
S T A R T
H o ld in g d o w n T e a r o f f / B in a n d L F /F F s w itc h e s , tu r n th e p r in te r o n .
R e fe r r in g to th e F o n t a n d T e a r o ff/ B in L E D s , p u s h T e a r o f f /B in s w itc h to s e le c t th e m e n u .
L a n g u a g e s e le c tio n s h e e t R e fe r r in g to th e P a u s e a n d P a p e r O u t L E D s , p u s h L o a d /E je c t s w itc h to c h a n g e th e s e ttin g v a lu e . P u s h d o w n L o a d /E je c t s w itc h to s e le c t th e a im e d la n g u a g e .
C h a n g e th e la n g u a g e ?
Y E S
N O
F in is h ?
P u s h d o w n T e a r o f f / B in s w itc h . T u r n th e p r in te r o ff to s a v e th e s e ttin g s . S e le c t th e m e n u a n d th e m e th o d , a n d th e c u r r e n t s e ttin g s a r e p r in te d .
E N D
Figure 1-5. Flowchart for Default Setting Mode 2
1.2.6.1 Setting Items
Setting values available for the default setting mode including factory settings are as shown in the following table: Table 1-13. Setting Values Available for Default Setting Mode 2 Setting values (BOLD font : factory setting) 3 inch, 3.5 inch, 4 inch, 5.5 inch, 6 inch, 7 inch, 8 inch, 8.5 inch, 11 inch, 70/6 inch, 12 inch, 14 inch, 17 inch Page length for rear tractor 3 inch, 3.5 inch, 4 inch, 5.5 inch, 6 inch, 7 inch, 8 inch, 8.5 inch, 11 inch, 70/6 inch, 12 inch, 14 inch, 17 inch Character table Standard version: Italic, PC437, PC850, PC860, PC863, PC865, PC861, BRASCII, Abicomp, Roman 8, ISO Latin 1 NLSP version: Italic, PC437, PC850, PC437 Greek, PC 853, PC855, PC852, PC857, PC866, PC869, MAZOWIA, Code MJK, ISO 8859-7, ISO Latin 1T, Bulgaria, PC774, Estonia, ISO 8859-2, PC866 LAT, PC866UKR, PCAPTEC, PC708, PC720, PCAR864, PC860, PC861, PC865 International character set for Italic U.S.A., Italic France, Italic Germany, Italic U.K., Italic table Italic Denmark 1, Italic Sweden, Italic Italy, Italic Spain 1 Note: Settings with bold weight means the standard factory settings. Items Page length for front tractor
Rev.B
1-11
FX-1880/880 Service Manual Chapter 1 Product Description
1.2.7 EEPROM Clear Function
You can change some parameters into the factory settings to perform panel operation easily. Pressing Tear off / Bin and Load / Eject switches at same time while turning on the printer turns the default settings into the factory settings: Table 1-14. Cleared Items and Values on EEPROM (Standard Model) Item Character table selection 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 Print direction setting I/F mode selection Auto I/F waiting time setting Auto line feed Auto tear off Skip over perforation High speed draft Input buffer Software 0 slash Buzzer Auto CR Tear-off adjustment value Manual insertion time Tear-off wait time I/F timing data TOF minimum value Paper edge length Paper length for rear manual insertion Paper length for front manual insertion sub number for customization Value 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 Draft 10 cpi Bi-D Auto 10 sec. Off Off Off On On ESC/P Off On Off 0 2 or 3 sec. 3 sec. BUSY timing data 4.2 mm 0 22 inch 22 inch Standard
Rev.B
1-12
FX-1880/880 Service Manual Chapter 1 Product Description
1.2.8 Bi-D Adjustment
Refer to the following flowchart for the Bi-D adjustment.
S T A R T
H o ld th e p a lig n w ith in g r in m e th e d o te r n t g u w n P a u s e s o n , a n d th e p a tte r is p r in id e fo r th e a w itc h , tu rn fir s t te d a lo n g d ju s tm e n t.
[S te p A S e le c t c lo s e ly p r e s s in L o a d /E
] th e n u m b e a lig n e d p a g th e L F /F je c t s w itc h
r fo r th e m o s t tte rn b y F s w itc h a n d e s .
[S te p B ] F ix th e s e le c te d n u m b e r b y p r e s s in g T e a r O ff/B in s w itc h , a n d th e n e x t a lig n m e n t p a tte r is p r in te d . R e p a d ju 1 . 2 . 3 . e a t S te p s A a n d B u n til fin is h in g th e s tm e n t fo r th e fo llo w in g m o d e s : H ig h s p e e d d r a ft m o d e D ra ft m o d e N L Q m o d e T u r n th e p r in te r o ff, a n d th e n e w s e ttin g s a r e s to r e d in th e n o n - v o litile m e m o ry .
E N D
Figure 1-6. Bi-D Adjustment flowchart
Rev.B
1-13
&+$37(5
OPERATING PRICIPLES
FX-1180/FX-880 Service Manual Chapter 2 Operating Principles
2.1 MAIN COMPONENTS
This printer is divided into several main components for easy removal and repair. The main components are :
Y Y Y Y Y
C229MAIN: C229PSB/PSE/PSH: C229PNL: M-3J60/3J10: Housing:
Control board Power supply board Operation panel board Printer mechanism for FX-1180/FX-880 Upper case, Lower case, Rear sheet guide, Knob, Printer cover
2.1.1 C229MAIN Board
The C229MAIN board consists of CPU TMP96C141AF (IC3), gate array E05B50 (IC2), EEPROM AT93C46 (IC4), 1/4M PSRAM (IC5), 2/4M PROM (IC7), driver elements, and so on.
P F M o to r D r iv e r IC C R M o to r D r iv e IC G a te a rra y E 0 5 B 5 0
C N 3
P S R A M P r in t H e a d D r iv e r C P U P R O M
E E P R O M
Figure 2-1 . C229MAIN Component
2.1.2 C229PSB/PSE/PSH Board
The C229 PSB/PSE power supply board consists of Transformer, Switching FET, Regulator IC, Diode bridge, Fuse, Photo-coupler, and so on.
F u s e C N 1 C N 2 S w itc h in g F E T P h o to - c o u p le r T ra n s fo rm e r R e g u la to r IC
D io d e B r id g e
Figure 2-2. C229PSB/PSE/PSH Component
Rev. B
2-1
FX-1180/FX-880 Service Manual Chapter 2 Operating Principles
2.2 PRINTER MECHANISM
This printer mechanism consists of Printhead, Paper feed mechanism, Carriage movement mechanism, Tractor feed mechanism, Platen gap adjustment mechanism, Ribbon feed mechanism, PF motor, CR motor, detectors, and so on.
2.2.1 Printhead
The printhead prints data from the control board on paper using the ink ribbon. The printhead is mounted on the carriage unit.
2.2.2 Paper Feed Mechanism
The paper feed mechanism picks up paper and transports it to the printhead, then ejects the paper step by step or continuously driven by the PF motor. PF motor drives the paper feed mechanism gears and the platen roller. The top of form and paper out condition are detected by the front and rear PE detector, respectively.
2.2.3 Carriage Movement Mechanism
The carriage movement mechanism carries the carriage unit left and right along the CR guide shaft and mechanism frame, and stops it at any position for printing. It is driven by torque sent from the CR motor via the timing belt. Home position is detected by the HP (home position) detector at power on and CR motor phase changing timing.
2.2.4 Tractor Feed Mechanism
The tractor feed mechanism feeds continuous paper to the printhead and ejects it. Torque from the PF motor is transferred to the tractor unit via the release mechanism in the paper feed mechanism. The release lever in the release mechanism switches torque from the PF motor between cut sheet feeding and continuous paper feeding. This printer is equipped with several tractor feeding methods (front / rear push tractor feeding, front / rear push & pull tractor feeding and front / rear pull tractor feeding), which is selected according to the tractor unit setting positions and the lever positions. The tractor detector detects the release lever setting position, for cut sheet feeding or continuous paper feeding.
2.2.5 Platen Gap Adjustment Mechanism
The platen gap (the gap between the platen and the printhead) adjustment mechanism consists of CR guide shaft, parallelism adjustment bushing, PG adjust lever and PG detector. PG adjust lever is attached to the left side of the CR guide shaft. The bushings are attached to the both sides of the frame. As the both sides of CR guide shaft are eccentric toward external form of them, printhead approaches or recedes from the platen roller as the PG lever turns forward or backward. PG detector detects PG lever position. If the lever is set to a position between "2" and "6", the printer is in the copy mode.
2.2.6 Ribbon Feed Mechanism
The CR motor drives the ribbon feed mechanism via the timing belt. The ribbon feed mechanism has the sun and planetary gear system. No matter the carriage unit is driven left and right, the ink ribbon is driven in one direction.
Rev. B
2-2
FX-1180/FX-880 Service Manual Chapter 2 Operating Principles
T ra c to r
R e le a s e L e v e r
R e le a s e D e te c to r
R e a r P E D E te c to r P la te n R o lle r F ro n t P E d e te c to r
P F M o to r
P a r a lle lis m
B u s h in g
P r in th e a d C R G u id e S h a ft P a r a lle lis m B u s h in g
C R M o to r C a r r ia g e U n it R ib b o n F e e d M e c h a n is m P G A d ju s t L e v e r H P D e te c to r T im in g B e lt
Figure 2-3. Printer Mechanis Outline
Rev. B
2-3
FX-1180/FX-880 Service Manual Chapter 2 Operating Principles
2.3 CIRCUIT OPERATION
2.3.1 C229PSB/PSE/PSH Power Supply Circuit
This printer can be powered by one of the following three power supply boards: the C229PSB (120V) board, the C229PSE (230V) board, or the C229PSH (Universal) board. The function of the boards is the same , except for a difference in the primary circuitry. The power supply outputs the DC current necessary to drive the printer control circuit and drive the mechanism. The input voltages and fuse ratings are as shown in the following table: Table 2-1. Input Voltage and Fuse Rating Board C229PSB C229PSE C229PSH Input Voltage 85-138VAC 187-276VAC 85-276VAC Fuse F1 Rating 4A, 125V or 250V T2.0AH, 250V T4.0AH, 250V
The power supply circuit outputs voltages used to drive the various control circuits and the mechanism, as shown in the following table: Table 2-2. Output Voltages and Applications Output Voltage 5V 5% 0.7A (Type-B I/F output is included.)
F
35V 6% 0.8A
F
Applications Logic lines Detectors Panel Switches & LEDs CR Motor PF Motor Printhead
The power supply circuit consists of the line filter circuit, ZC-RCC (Zero-Cross Ringing Choke Converter) switching circuit and 5V chopper regulator IC. The AC voltage is first input to the line filter circuit for higher harmonics absorption, then input to the switching circuit and transformed to +35VDC. +5VDC is generated from +DC35V by the regulator IC. The over current / voltage protection circuit is also designed on the board. The power switch set in the secondary circuit that is controlled by the signal PSC from the control panel.
A C L in e In p u t
L in e F ilte r
Z C - R C C S w itc h in g R e g u la to r - O v e r C u r r e n t p r o te c tio n - O v e r V o lta g e p r o te c tio n R e g u la to r IC + 3 5 V D C
+ 5 V D C
P S C
Figure 2-4. Power Supply Circuit Block Diagram
Rev. B
2-4
FX-1180/FX-880 Service Manual Chapter 2 Operating Principles
2.3.2 C229MAIN Board Circuit
The C229MAIN board is the control circuit board of this printer. This board consists of several IC chips and drivers, as shown in the table below: Table 2-3. Function of the Main IC Element TMP96C141AF Location IC3 Function 16 bit CPU runs at 14.47MHz - Main controller - Detectors control - CR Motor Control Gate array : System Controller - Parallel I/F control - Option Type-B I/F control - Panel Switch, LED control - Printhead Control - PF Motor Control - CR Motor Current control Reset IC : Hardware reset function EEPROM : System control data (Market, TTL threshold, Bi-D setting, Page length, TOF, etc.) containing 1M/4M bit - Buffer and Working area of CPU & Gate array 2/4M bit EPROM/ Mask ROM - Control program containing CR Motor driver PF Motor driver Power-off signal sensing
E05B50
IC2
PST594E AT93C46
IC1 IC4
PSRAM ROM SLA7024M A2917SEB Comparator
IC5 IC7 IC8 IC11 IC12
P r in th e a d
T h e r m is to r
H e a d D r iv e r
C G
P S R A M
O p e r a tio n P a n e l G .A . E 0 5 B 5 0 (IC 2 )
A d d r e s /D A T A B u s R O M C P U T M P 9 6 C 0 1 A F (IC 3 )
P G
D e te c to r
P a r a lle l I/F
R e a r P E D e te c to r F ro n t P E D e te c to r H P D e te c to r R e le a s e L e v e r D e te c to r
R e s e t IC T y p e -B I/F ( O p tio n ) E E P R O M
P F M o to r D r iv e r
C R M o to r D r iv e r + 3 5 V D e te c to r
Figure 2-5 . C229MAIN Board Circuit Block Diagram
Rev. B
2-5
FX-1180/FX-880 Service Manual Chapter 2 Operating Principles Data from the host computer is stored in the input buffer once, then converted into image data and transmitted to the printhead through the gate array, as shown in the figure below:
H o s t c o m p u te r
P r in t d a ta c o n v e r s io n
In p u t b u ffe r
Im a g e b u ffe r Im a g e d a ta tra n s fe r
R A M
C P U
D a ta la tc h a n d d a ta o u tp u t
G a te a rra y
P r in th e a d d r iv e r c ir c u it
Figure 2-6. Data Flow
Rev. B
2-6
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TROUBLESHOOTING
FX-1180/FX-880 Service Manual Chapter 3 Troubleshooting
3.1 OVERVIEW
The printer may exhibit different symptoms for the same problem, which makes troubleshooting more difficult. This section, however, provides simple and effective ways to facilitate troubleshooting. The following flowchart illustrates the main steps of the troubleshooting process.
START
Unit Level Troubleshooting
Unit Repair of the C229PSB/PSE/PSH Board
Unit Repair of the C229MAIN Board
Unit Repair of M-3J10 Mechanism
Assembly and Adjustment
END
Figure 3-1. Troubleshooting Process Flowchart
3.1.1 Main Component Checking Point
The following components can be checked by a simple measurement equipment such as a multimeter, etc.) easily. Table 3-1. Motor Coil Resistance Test Points Motor Connector Number PF Motor (CN8) CR Motor (CN9) Test Method Meter Reading (Set Meter to Ohms. Disconnect Motor from Main Board and check it with Printer Power off.) 1 and3, 2 and 4 Place one lead on pin 1 (pin2) and the 16.0 ± 10% other lead on pin3 (pin 4) on each of the (at 25°C par one test pins to check the two motor phases. phase) Common pin : 5 Place one lead on pin 5 and the other 2.7 ± 10% Test pins : 1, 2, 3 lead on each of the 4 test pins to check (at 25°C par one and 4 the two motor phase. phase) Test Pin Number
Rev. B
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FX-1180/FX-880 Service Manual Chapter 3 Troubleshooting
Table 3-2. Printhead Solenoid Resistance Part Test Pin Number (See the figure below.) - Common pin :C1 Test pins: 1, 4 - Common pin :C2 Test pin: 8 - Common pin: C3: Test pins: 2, 6 - Common pin: C4: Test pins: 5, 9 - Common pin :C5 Test pins: 3, 7 Test Method (Set Meter to Ohms. Disconnect Motor from Main Board and check it with Printer Power off.) For example, place one lead on pin C1 and the other lead on Test pin 1 to check #1 pin of the Printhead solenoid. Test pin numbers match the printhead solenoid (dot wire) numbers. Specifications
Printhead
8.19 ± 0.8 (at 25°C)
Printhead Connenctor
Printhead
2
6 C3 8 C4 C5 1 T C1 C2 4 9 7 5 3 T View A A
Printhead Connenctor
Figure 3-2. Printhead Connector Pin Alignment
Table 3-3. Printhead Driver Test Pin Transistor Numbers Test Method (Set meter to diodes. Check power off.) Check the following: - From the base to the collector - From the base to the emitter Reverse the leads and test again. Meter Reading
Q2, Q3, Q4, Q5, Q6,Q7, Q8, Q9, Q10 ,Q11,Q12, Q13, Q14, Q15, Q16, Q17, Q18, Q19, Q20
The tester shows neither open nor shorted.
Rev. B
3-2
FX-1180/FX-880 Service Manual Chapter 3 Troubleshooting
Table 3-4 Detector Test Point Detector Connector Number HP Detector (CN4) Front PE Detector (CN6) Test Method (Set Meter to Ohms. Check the Printer power off.) Place one lead on pin 1 and the other lead on pin 2, and toggle the detector actuator. Place one lead on pin 1 and the other lead on pin 2, and toggle the detector actuator. Meter Reading
Release Lever Detector (CN10) PG Detector (CN11) Printhead thermistor
Meter should toggle between open and short. (LOW: within CR Home position.) Meter should toggle between open and short. (HIGH: paper is installed in the printer.) Place one lead on pin 1 and the Meter should toggle between other lead on pin 2, and toggle the open and short. (HIGH: detector actuator. Friction Feed mode.) Place one lead on pin 1 and the Meter should toggle between other lead on pin 2, and move the open and short. detector actuator from -0 to 6. (HIGH: PG -1 ~ 3.) Place one lead on pin T and the Approx. 14K (at 17°C) other lead on other pin T to check the resistance.(Refer to Fig.3-2.)
3.1.2 Error
As this printer checks its condition by itself at power-on, when it finds any trouble, it indicates it with error indication buzzer and LEDs. The error Indications and corresponding remedies are shown in the table below: Table 3-5. Error Indications Cause Remedies The printer fails to Set paper to the printer *** load paper. correctly. Set the release lever to ----- The release lever is set to a wrong the correct position. position. Fatal error All LEDs : Blink The carriage unit gets Turn off the printer once and turn it back into out of control or power supply voltage on. becomes incorrect. Note: Symbols used in the table represent the following: "" : A beep sounds for approx. 100 ms with the interval of approx. 100ms. "-" : A beep sounds for approx. 500 ms with the interval of approx. 100ms. Error LED Status Paper out error Paper Out: On Pause: On Release lever Pause: ON error Buzzer
Rev. B
3-3
FX-1180/FX-880 Service Manual Chapter 3 Troubleshooting
3.2 UNIT LEVEL TROUBLESHOOTING
You may be able to identify the defective unit just from the symptom displayed. The table below provides the symptoms for a number of failures, so that you can easily identify the problem. Once the problem has been identified, refer to the flowchart listed in the right-hand column of the table below to determine the case of the problem. Table 3-6. Symptoms and Problems Symptom Printer fails to operate when power is on. Abnormal carriage operation at power on. · · · · Printing is faulty during self-test, but carriage operation is normal. Abnormal paper feeding Abnormal control panel operation Data sent by the host computer is printed incorrectly · · Problem Carriage dose not move. Control panel indicator LEDs do not light. Carriage moves away from the home position at power on. Carriage returns to home position correctly, but the printer then fails to enter the READY mode. No printing at all. Faulty printing some dots are not printing. See Page 3-5 3-6
3-7
The printer prints but feeds paper incorrectly. When the LF/FF switch is pressed, no paper is fed. · Carriage operates normally at power on, and self-test is executed correctly, but data is not printed. · Data from the computer is printed incorrectly.
3-8 3-9 3-10
The repair procedure flowcharts use the following symbols:
START
Start
Branching
Preocessing
Forwarding to another items
Return to the Start of the item
END
Decision
END
Figure 3-3. Symbols Used in the Flowcharts
Rev. B
3-4
FX-1180/FX-880 Service Manual Chapter 3 Troubleshooting
1. Printer fails to operate when power is on.
START
Is AC input voltage normal? 120V version: 85 - 138V 230V version: 187 - 276V Universal Version: 85 - 276V YES
NO Use the correct AC input voltage. No fluctuation from AC voltage range is permitted.
Are the fuses F1 on C229PSB/PSE/PSH blown?
YES Replace the fuse.
NO
NO Is the new fuse also blown when power is turned on again?
Measure the +35V line at pin 7 or 8 of CN2 on C229PSB/PSE/PSH.
YES Replace the C229 PSB/PSE/PSH.
Is output voltage normal? YES
NO
Measure the +5V line at pin 3 or 4 of CN2 on C229PSB/PSE/PSH.
Is output voltage normal? YES
NO
Replace the C229 PSB/PSE/PSH.
Verify each motor and printhead solenoid resistance,referring to Table 3-1 and Table 3-2.
Are the resistances normal? YES Replace the C229MAIN.
NO
Replace the applied unit.
END
Figure 3-4. Flowchart (1)
Rev. B
3-5
FX-1180/FX-880 Service Manual Chapter 3 Troubleshooting
2. Abnormal carriage operation at power on.
START
Are all connectors connecting the C229MAIN board and printer mechanism?
NO Reinsert the connectors correctly.
YES NO Is the fault solved? YES
END
Dose the carriage move to the home position? YES
NO
See the troubleshooting for Printer Mechanism.
Replace the C229MAIN Board.
NO Is the fault solved? YES
END END
Figure 3-5. Flowchart (2)
Rev. B
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FX-1180/FX-880 Service Manual Chapter 3 Troubleshooting
3. Printing is faulty during self-test, but carriage operation is normal.
START
Is AC input voltage normal? 120V version: 85 - 138V 230V version: 187 - 276V Universal Version: 85 - 276V YES
NO Use the correct AC input voltage. No fluctuation from AC voltage range is permitted.
Are the fuses F1 on C229PSB/PSE/PSH blown?
YES Replace the fuse.
NO
NO Is the new fuse also blown when power is turned on again?
Measure the +35V line at pin 7 or 8 of CN2 on C229PSB/PSE/PSH.
YES Replace the C229 PSB/PSE/PSH.
Is output voltage normal? YES
NO
Measure the +5V line at pin 3 or 4 of CN2 on C229PSB/PSE/PSH.
Is output voltage normal? YES
NO
Replace the C229 PSB/PSE/PSH.
Verify each motor and printhead solenoid resistance,referring to Table 3-1 and Table 3-2.
Are the resistances normal? YES Replace the C229MAIN.
NO
Replace the applied unit.
END
Figure 3-6. Flowchart (3)
Rev. B
3-7
FX-1180/FX-880 Service Manual Chapter 3 Troubleshooting
4. Abnormal paper feeding
START
Is the paper loaded correctly? YES
NO
Load the paper correctly.
Is the connector CN5 or CN6 connected correctly? YES
NO
Reinsert the connector CN5 or CN6 correctly.
NO
Is the fault solved? YES
END
Dose the platen knob rotate smoothly when it is turned manually at power off? NO
YES
Refer to the troubleshooting for Printer Mechanism.
Replace the C229MAIN board. Is the fault solved? Is the fault solved? YES NO YES Replace the C229MAIN board. NO
Refer to the troubleshooting of Printer Mechanism.
END
END
END
Figure 3-7. Flowchart (4)
Rev. B
3-8
FX-1180/FX-880 Service Manual Chapter 3 Troubleshooting
5. Abnormal control panel operation
START
Do the switches have clicks? YES
NO
Replace the Operation Panel.
Is the fault solved? YES
NO
Replace the C229MAIN board.
Is the fault solved? YES
NO
Verify that the harness for the operation panel is properly inserted and have continuity. If it is connected, replace the harness.
END
END
END
Figure 3-8. Flowchart (5)
Rev. B
3-9
FX-1180/FX-880 Service Manual Chapter 3 Troubleshooting
6. Data sent by the host computer is printed incorrectly.
START
Execute the printer self test.
NO Dose the self test print normally? YES Verify the default setting. Refer to the other troubleshooting items.
Is the interface cable connected correctly? YES
NO Replace the interface cable.
NO Is the fault solved? Replace the C229MAIN board. YES
END
NO Is the fault solved? YES
Set the paper thickness lever to a position with a higher number.
NO Is the fault solved? YES
Adjust the platen gap. (Refer to chapter 4.)
END
END
Figure 3-9. Flowchart (6)
Rev. B
3-10
FX-1180/FX-880 Service Manual Chapter 3 Troubleshooting
3.3 UNIT REPAIRING OF THE POWER SUPPLY BOARD
This section is necessary only for servicers who repair to the component level. Servicers who perform only board replacement can ignore this section. The table below lets you troubleshoot problems with the power supply board (C229PSB/PSE/PSH). The table provides various symptoms, likely cases, and checkpoints. Checkpoints include waveforms, resistance, and other values to be checked to evaluate the operation of each component. Table 3-7. Repair of the C229PSB/PSE/PSH Symptom The printer dose not operate at all. Condition +35V line is defective. Cause Fuse F1 is blown. Checkpoint Check that the fuse is not blown. Solution Replace the C229PSB/ PSE/PSH board. Replace the C229PSB/ PSE/PSH board. Replace the C229PSB/ PSE/PSH board.
Transformer (T1) is open.
Check the coil of transformer using a multimeter.
Switching FET (Q1) is defective.
Check for the proper waveform at the drain of Q1.
Figure 3-10. Drain of Q1 Q2 or Q3 is defective. Check for the proper waveform at the collector of Q2 or Q3. Replace the C229PSB/ PSE/PSH board.
Figure 3-11. Collector of Q2/Q3
Rev. B
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FX-1180/FX-880 Service Manual Chapter 3 Troubleshooting
Table 3-8. Repair of the C229PSB/PSE/PSH (continued) Symptom The printer dose not operate at all. Condition +35V line is defective. Cause PC1 is defective. Checkpoint Check for the proper waveform at pin 5 or 7 of PC1. Solution Replace the C229PSB/ PSE/PSH board.
Figure 3-12. Waveform of PC1 +5V line is defective. Regulator IC (IC51) is defective. Check for the proper waveform at pin 5 of IC51. Replace the C229PSB/ PSE/PSH board.
Figure 3-13. OSC of IC51 Check for the proper waveform at pin 9 or 10 of IC51. Replace the C229PSB/ PSE/PSH board.
Figure 3-14. Output of IC51
Rev. B
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FX-1180/FX-880 Service Manual Chapter 3 Troubleshooting
3.4 UNIT REPAIRING OF THE MAIN BOARD
This section is necessary only for servicers who repair to the component level. Servicers who perform only board replacement can ignore this section. The table below lets you troubleshoot problems with the main board (C229MAIN). The table provides various symptoms, likely cases, and checkpoints. Checkpoints include waveforms, resistance, and other value to be checked to evaluate the operation of each component. Table 3-9. Repair of the C229MAIN Symptom The printer dose not operate at all. Condition The CPU dose not operate. Cause The reset circuit is not operational. Checkpoint Check for the proper voltage waveforms output from the +5VDC line (IC1, pin 3) and for the reset signal (IC1, pin 1) with printer power on. Solution Replace the C229MAIN board.
5V line
/RESET
Figure 3-15. Reset Signal Selection control ROM is abnormal Check for the proper signal at pin 22 of IC7 or pin 30 of IC6 which changes between HIGH and LOW. Replace the C229MAIN board.
Figure 3-16. Chip Select Signal for Program ROM
Rev. B
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FX-1180/FX-880 Service Manual Chapter 3 Troubleshooting
Table 3-10. Repair of the C229MAIN (continued) Symptom The printer dose not operate at all. Condition The CPU dose not operate. Cause The CPU is defective. Checkpoint Solution Check for the proper oscillator signal Replace the at pin 26 or 27 of the CPU (IC3). C229MAIN board.
Figure 3-17. Clock Signal of CPU The carriage operates abnormally. The carriage dose not operate at all. IC8 is defective. Check for the proper CR motor phase control signals at pin 5, 6, 16 and 17, and motor driving signals at pin 1, 8, 11 and 18 of IC8. Replace the C229MAIN board.
Pin 5 of IC8
Pin 1, of IC8
Figure 3-18. CR Motor Control Signal
Rev. B
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FX-1180/FX-880 Service Manual Chapter 3 Troubleshooting
Table 3-11. Repair of the C229MAIN (continued) Symptom Paper is fed abnormally. Condition Paper is not fed at all. Cause IC 11 is defective. Checkpoint Check for the proper PF motor phase control signals at pin 1, 2, 23 and 24, and motor driving signals at pin 3, 6, 18 and 21 of IC11. Solution Replace the C229MAIN board.
Pin 1 of IC11
Pin 3 of IC 8
Figure 3-19. PF Motor Control Signal Self test printing is abnormal. The self test printing is not executed or a particular dot doesn't print. Any transistor of Q2 - Q10 is defective. Check for the proper printhead driving signal at the collector and base of Q2 - Q11 Replace the C229MAIN board.
BASE of Q5
CORRECTOR of Q5
Figure 3-20. Pritnhead Drive Signal Any transistor from Q11 to Q25 is defective. Data from the host computer is printed incorrectly. Data corruption occurs when the interface is used. IC2 or CPU is defective. Replace the C229MAIN board.
-
-
Replace C229MAIN board.
Rev. B
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FX-1180/FX-880 Service Manual Chapter 3 Troubleshooting
3.5 REPAIRING THE PRINTER MECHANISM
For detailed procedures for replacing or adjusting matter, refer to Chapter 4, Disassembly and Assembly and Chapter 5, adjustments. If a problem or symptom occurs, refer to the following tables and find out other potential causes. Table 3-12. Repairing the Printer Mechanism Symptom Cause w Problem: The CR motor fails to operate. The CR motor fails to Foreign matter is drive the timing belt lodged in the after power on. mechanism. The CR motor is defective. Checkpoint Solution
Manually move the Remove the timing belt to see if the foreign substance. motor can rotate freely. Replace the CR Measure the motor coil motor (and main resistance. It should be board, if about 16 ohms. If the coil is shorted, check CR necessary). motor driver IC8 on the main board. w Problem: The carriage dose not operate at power on (after carriage has been manually centered prior to power on). The CR motor rotates, The belt drive or Check the pulleys which Replace the but the carriage dose driven pulley is are broken or worn. pulleys. not move. defective. The timing belt is Check if the timing belt Reset the belt to defective. is correctly set to the the carriage. carriage. Check if the timing belt Replace the belt. is broken. The carriage moves to The carriage Check if the carriage Clean and the left slightly, then movement is not moves smoothly as you lubricate the CR stops. smooth. move it manually. guide shaft or frame. Otherwise, replace the CR motor. The carriage moves to The HP detector is Check the HP detector Replace the HP the left or right end, defective. using a multi meter. detector. then stops. w Problem: Self test printing is not executed. Connect the FFC The carriage moves, The printhead FFC Check whether FFC is to the printhead or but dose not print. common wires are properly connected to the main board disconnected. the printhead or the correctly. main board. Replace the The printhead is Measure the printhead defective. coil resistance. It should printhead, (and drivers , if be about 8 ohms. If the necessary). printhead is shorted, check the drivers on the main board.
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Table 3-13. Repairing the Printer Mechanism (continued) Symptom Cause Checkpoint w Problem: Self test printing is not executed. A particular dot is The printhead is Measure the printhead coil missing. defective. resistance. It should be about 8 ohms. If the printhead is shorted, check the drivers on the main board. Check if the head wire is broken. The printing is too The printhead is Check if the head wire is light, or the print defective. broken. density is uneven. The platen gap is not Set the gap adjustment properly adjusted. lever to the first position, and check for the correct platen gap, 0.365 ± 0.015. w Problem: Paper is fed abnormally. The printer tries to Foreign matter is Check if any foreign matter print, but paper is lodged in the paper is lodged in the paper path. not fed or not fed path. constantly. The PF motor dose Check if any foreign matter not drive the is lodged in the mechanism. mechanism. The PF motor is Measure the motor coil defective. resistance. It should be about 16 ohms. If the motor is shorted, also check the drivers on the main board. w Problem: Ribbon operation is abnormal. The ribbon is not The ribbon cartridge is Remove the ribbon cartridge turning. defective. and check if the ribbon feeds normally as you turn it manually. Foreign matter is Check if the RD ratchet lodged in the gears. rotates as you manually move the carriage right and left. The ribbon feeds properly only when the carriage moves in one direction (i.e., it fails to feed when the carriage moves in the other direction). The planetary gear in the ribbon drive gears is defective. Move the carriage manually, and check if the ribbon feed gears turn in reverse and engages with the gear. Solution Replace the printhead, (and drivers , if necessary).
Replace the printhead. Replace the printhead. Adjust the platen gap. Refer to Chapter 5.
Remove the foreign matter. Remove the foreign matter. Replace the PF motor, (and drivers , if necessary).
Replace the ribbon cartridge.
Remove the foreign matter. Otherwise, replace the ribbon feed mechanism. Replace the ribbon feed mechanism.
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Table 3-14. Repairing the Printer Mechanism (continued) Symptom Cause w Problem: Paper is stained with ink. Ink stains appear on The ribbon mask is printed areas. positioned incorrectly. Checkpoint Solution
Check if the ribbon Reinstall the ribbon mask is installed in the mask. correct position. Adjust the platen The platen gap is not Set the gap adjustment adjusted correctly. lever to the first position, gap. Refer to the chapter 5 and check the platen gap. The correct platen Adjustment. gap is 0.365±0.015. w Problem: The printer continues to print after paper ends or when no paper is loaded. The printer keeps The PE detector is Check if the PE detector Replace the PE printing beyond the defective. is bad. detector. end of the page.
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CHAPTER
DISASSEMBLY AND ASSEMBLY
FX-1180/FX-880 Service Manual Chapter 4 DISASSEMBLY AND ASSEMBLY
4.1 OVERVIEW
This section describes procedures for disassembling and assembling the printer. Unless otherwise specified, disassembled units or components can be re-assembled by reversing the disassembly procedure. Therefore, no assembly procedures are included in this section. Precautions for any disassembly or assembly procedure are described under the heading "CHECK POINT". Any adjustments required after disassembling the units are described under the heading "ADJUSTEMNTS".
4.1.1 Disassembly Precautions
Follow the precautions below when disassembling the printer.
WARNING
T T T T
Before disassembling, assembling or adjusting the printer, disconnect the power supply cable from the AC power socket. Failure to do so might cause personal injury. Be careful with the printhead when you handle it as it may be very hot right after printing. Do not touch the heat sink attached to the switching FET (Q1) on the power supply board right after power off, as it may be very hot. Never touch the heat sink attached to the switching FET (Q1) while The AC power cable is connected to the AC outlet, as it is not electrically isolated.
CAUTION
To maintain efficient printer operation, take the precautions below: T Use only the recommended tools for maintenance work. T Use only the recommended lubrications and adhesives (See Chapter 6.) T Adjust the printer only in the manner described in this manual. T Be aware that the existing drawings for Fx-880 are substituted for FX-1180. It is because no exclusive drawings for FX-1180 has been made since the major mechanical difference between FX-1180 and FX-880 is width only.
4.1.2 Tools and Instruments
The table below lists the tools and the instruments required for disassembling, assembling or adjusting the printer. Use only tools that meet these specifications. Table 4-1 . Tool and Instrument List Name Specification EPSON Part No. Phillips Screwdriver No.2 B743800200 Phillips Screwdriver No.1 B743800100 Box Driver 7.0mm Diagonal B741700200 Tweezers B741000100 Round-nose pliers B740400100 Thickness gage B776702201 Soldering iron B740200100 E-Ring holder Size: #6 B740800800 Multi-Meter OHM/Voltage/Current Oscilloscope Min. 50MHz Note) All tools and instruments listed above are commercially available.
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4.1.3 Service Check After Repair
After completing repair of the product, use the check list shown below to check the status of the repaired product and overall repair work performed before returning the product to the users. This list can be used as a record of all service works performed with the product. Table 4-2. Repair Status Check List Category Printer Mechanism Component Printhead Carriage Mechanism Item to Check Do all wires print properly? Dose the carriage move smoothly? · Noisy · Any dirt or excessive oil? Is the CR motor at the normal temperature? (Not too hot?) Does paper advance smoothly? · Noisy? · Paper is jamming? Is the PF motor at the normal temperature? (Not too hot?) Do all types of paper advance smoothly? Is the tractor feeding paper smoothly? Are all paper paths clear of obstructions? Is the plate free of damage? Is the ribbon mask free of damage? Was the self-test printing successful? Was the on-line printing successful? Is the gap adjusted correctly? (PG = 0.38 ± 0.02mm ) Is the Bi-Directional alignment made properly? Latest version = Has the ribbon cartridge been removed from the printer? Have all relevant attachments been packed together with the printer?
Paper Feed Mechanism
Paper Path
Ribbon Mask Operation Self-Test On-line Test Adjustment Platen-Gap Bi-D Alignment ROM Packing Version Ribbon Cartridge Attachments
V Checked, OK V Not necessary V Checked, OK V Not necessary V Checked, OK V Not necessary V Checked, OK V Not necessary V Checked, OK V Not necessary V Checked, OK V Not necessary V Checked, OK V Not necessary V Checked, OK V Not necessary V Checked, OK V Not necessary V Checked, OK V Not necessary V Checked, OK V Not necessary V Checked, OK V Not necessary V Checked, OK V Not necessary V Checked, OK V Not necessary V Checked, OK V Not necessary V Checked, OK V Not necessary V Checked, OK V Not necessary
Status
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4.1.4 Abbreviations for Small Parts
The table below lists the abbreviations used in this manual for small parts, such as screws and washers. Table 4-3. Abbreviations and Screw Type Abbreviation CB Screw CBS Screw CBB Screw CBP Screw CP Screw CB(O) Screw Description Cross-recessed Bind-head Screw Cross-recessed Bind-head S-tight Screw Cross-recessed Bind-head B-tight Screw Cross-recessed Bind-head P-tight Scr