Epson SQ-870- Manuals

Page 3 - PRECAUTIONS; DANGER

REV.-A PRECAUTIONS Precautionary notations throughout the text are categorized relative to 1 ) personal injury, and 2) damage to equipment: DANGER Signals a precaution which, if ignored, could result in serious or fatal personal injury. Great caution should be exercised in performing procedures prec...

Page 4 - PREFACE

PREFACE T h i s m a n u a l d e s c r i b e s f u n c t i o n s , t h e o r y o f e l e c t r i c a l a n d m e c h a n i c a l operations, maintenance, and repair of the 170. T h e i n s t r u c t i o n s a n d p r o c e d u r e s i n c l u d e d h e r e i n a r e i n t e n d e d f o r t h e e x p ...

Page 5 - REVISION SHEET; DATE ISSUED; st issue

REVISION SHEET DATE ISSUED C H A N G E D O C U M E N T A F e b . 2 1 , 1 9 9 2 1st issue ,

Page 6 - TABLE OF CONTENTS

TABLE OF CONTENTS C H A P T E R 1 . G E N E R A L D E S C R I P T I O N C H A P T E R 2 . O P E R A T I N G P R I N C I P L E S C H A P T E R 3 . D I S A S S E M B L Y A N D A S S E M B L Y C H A P T E R 4 . A D J U S T M E N T S C H A P T E R 5 . T R O U B L E S H O O T I N G C H A P T E R 6 . M A ...

Page 7 - OPERATING

1 . 2 1 . 3 1 . 4 1 . 5 1 . 6 1 . 7 CHAPTER 1 GENERAL DESCRIPTION FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 SPECIFICATIONS . . . . . . . ...

Page 8 - LIST OF FIGURES; Exterior View of the; LIST OF TABLES; Settings for DIP Switch; I i i

REV.-A LIST OF FIGURES Figure 1-1. Exterior View of the 170 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Figure 1-2. Nozzle Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ......

Page 11 - H a r d w a r e S p e c i f i c a t i o n s

1.2 SPECIFICATIONS This section provides specifications for the 170 printer. 1.2.1 H a r d w a r e S p e c i f i c a t i o n s Printing method On-demand type ink jet system Nozzle configuration 48 nozzles (48 X d i a g o n a l ) Al A2 ‘o ‘ 2 A 3 (7.125°) 1/45” 47/45” ● Figure 1-2. Nozzle Configurati...

Page 14 - Printable area; more; Figure 1-6. Printable Area for Continuous Papers

REV.-A Printable area See figures 1-5 and 1-6 : or more ● 1 : 8 0 c o l u m n s : 3 . 0 m m ( 0 . 1 2 i n . ) o r m o r e w h e n t h e w i d t h o f p a p e r i s l e s s t h a n 2 2 9 m m ( 9 i n . ) . 13 mm (0.51 in.) or more when the width of paper is 257 mm (10.1 in.). 136 columns: 3.0 mm (O. 1...

Page 16 - AC

REV.-A Dielectric strength 2 2 0 / 2 4 0 Rated voltage version Input voltage range Rated frequency range Input frequency range Rated current Power consumption Insulation resistance Dielectric Strength 1 0 0 0 1 m i n u t e o r 1 2 0 0 1 second (between AC line and chassis) 2 2 0 t o 2 4 0 1 9 8 t o ...

Page 17 - Specifications

1.2.2 Firmware Control code Printing direction Input data buffer Character code Character tables Bit-map fonts Scalable fonts Specifications ES level 2 (EPSON standard code for printers) Bi-directional with logic seeking (text printing) (bit-image printing) 16KB (Standard) 128KB (factory option) 8 b...

Page 22 - INTERFACE OVERVIEW; Parallel Interface; Table 1-11. Connector Pin Assignments and Signal Functions

1.3 INTERFACE OVERVIEW The printer has a parallel interface with the Parallel Interface specifications described below. Specifications for the 8-bit parallel interface are as follows: Data format 8-bit parallel Synchronization STROBE signal Handshaking BUSY and signal Signal level Adaptable connecto...

Page 24 - CONTROL PANEL; BUTTONS

REV.-A CONTROL PANEL On the control panel are: 10 non-lock type buttons, and 24 indicators. k I I I Figure 1-10. Control Panel BUTTONS (1) PAUSE Button This button controls printer action. Pressing the button toggles the printer between PAUSE condition (no printing, no paper feeding, or no data and ...

Page 26 - DIP SWITCHES AND JUMPER SETTING

REV.-A 1.5 DIP SWITCHES AND JUMPER SETTING This section describes the DIP switch selections and jumper setting for the 170 printer. 1.5.1 DIP Switch Settings The two DIP switch banks for the printer, located on the control panel, are conditions as shown in tables 1-12 through 1-15. (Note that the st...

Page 28 - OPERATING INSTRUCTIONS

REV.-A 1.6 OPERATING INSTRUCTIONS This section describes the self-test and hexadecimal dump functions as well as the error states, printer initialization, and buzzer operation. 1.6.1 Self-Test To run the self-test using draft mode, turn the printer on while pressing the LINE FEED button. To run the ...

Page 30 - or

(2) Software initialization Input of the command also initialize the printer. Printer initialization by code does not perform functions (d) or(e) above. The settings changed by the last operation are maintained. (3) Panel initialization This printer can be initialized by pressing the RESET button on...

Page 31 - Figure 1-11 Lever Positions

When the paper is at the top-of-form position, the loading position is adjustable by using the ‘MICRO FEED’ function. In the ‘MICRO FEED’ function, pushing the LINE FEED button pushes the paper forward, and pushing the FORM FEED button pulls the paper backward. The adjusted loading position is store...

Page 34 - MAIN Board (Main Control Circuit

1.7.1 MAIN Board (Main Control Circuit T h e M A I N b o a r d i s t h e m a i n b o a r d i n t h e p r i n t e r , mechanism driver circuit. The (location: is used, and the 1 M byte memory space. M e m o r i e s 5 12K\l M bits program ROM 1 M bits M bits mask ROM Gate Arrays Memory management unit...

Page 36 - was; developed specifically for

REV.-A 1.7.4 Printer Mechanism (M-4710/4760) The M-47 10/4760 printer mechanism was developed specifically for 170 printer. Included the components are a carriage motor, carriage mechanism, paper-feed motor, paper-feed mechanism, TE motor, top edge holding mechanism, pump motor, pump mechanism, prin...

Page 38 - Block Diagram of Printer Mechanism -Model

LIST OF FIGURES Figure 2-1. Block Diagram of Printer Mechanism -Model - 4 7 1 0 / 4 7 6 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Figure 2-2. Internal Structure of Printhead .....

Page 40 - OPERATING PRINCIPLES OF PRINTER MECHANISM; 0/4760 is a serial type printer mechanism with a 48-nozzle

REV.-A 2.1 OPERATING PRINCIPLES OF PRINTER MECHANISM This section describes functions and operations of the printer mechanism - Model-47 10/4760. 10/4760 is a serial type printer mechanism with a 48-nozzle This printer mechanism consists of the unit, paper feed unit, ink mechanism, and sensors. Figu...

Page 41 - Mechanism

2.1.1 Mechanism The of this printer employs the on-demand method, where part of the ink stored in the reservoir within the is supplied into the nozzle each time ink in the nozzle chamber is injected. Figure 2-2 shows the internal structure of the The functions of the major components are explained b...

Page 44 - Adjustment of Platen Gap >

Adjustment of Platen Gap > REV.-A The platen gap must be adjusted with the head adjust lever (LEVER, GAP, ADJUST) depending on the thickness of paper. When the head adjust lever is operated, it turns the carriage guide shaft (SHAFT, CR, GUIDE, MAIN) and makes the carriage closer/farther to/from t...

Page 48 - Tractor Feed

When the release lever is shifted as described above, the arrangement of the gears is changed accordingly to enable various types of paper feeding operation (such as front push tractor feeding or rear push tractor feeding) or to disable either. Therefore, you can set continuous paper to each push tr...

Page 50 - Front Entrance

REV.-A Paper Paper Tension Roller Rear PE Sensor Figure 2-18. Rear Entrance - Push-Pull Tractor Method Front Entrance The front entrance is used in the friction feed method or the tractor feed method (Push tractor method or Push-pull tractor method). The paper inserted through this entrance is detec...

Page 52 - edge holder plate is enclosed behind the eject guide plate.

REV.-A 2.1.3.4 Top Edge Holder Mechanism Operation This mechanism is provided to minimize unprintable area at the top edge of paper. The top edge of paper fed around the platen is held by the top edge holder plate until the top edge is delivered to the position where the paper tension roller comes d...

Page 54 - C c w

2.1.4.1 Pump Motor The pump motor drives through several gears. REV.-A the pump, cleaner blade, rubbing blade, and carriage lock lever (set/reset) Pump Motor Cleaning BladeDrive Gear 1 . Gear I Cleaner Lever Rubbing Cleaner Blade CR Stopper Figure 2-24. Pump Motor Table 2-2. Rotational Direction and...

Page 55 - Pumping

REV.-A 2.1.4.2 Pump Mechanism The pump draws ink from the nozzles of the printhead and sends it to the wasted ink drain tank. This operation is performed to eliminate within the nozzles. Figure 2-25 illustrates the operation of the pump. When the pump motor rotates the pulley pumps in the wheel pump...

Page 58 - the cleaner lever is reset.; The cleaner lever is also used as a carriage lock lever. When the

REV.-A The pad and blade is attached to the cleaner lever. When the pump motor rotates clockwise, the spur gear (20) is rotated and thus sets the lever forward. When the pump motor rotates counter-clockwise, the cleaner lever is reset. The spur gear will be disengaged from the cleaner lever as soon ...

Page 60 - Figure 2-34. Structure of Wasted Ink Drain Tank

REV.-A 2.1.4.6 Wasted Ink Drain Tank Used ink is collected into the wasted ink drain tank. The wasted ink drain tank has the absorber to collect used ink through the tube, and the opening which lets out the vapor from ink. This tank is provided with a sufficient capacity to collect the waste ink tha...

Page 66 - OPERATING PRINCIPLES OF POWER SUPPLY CIRCUITRY; Operating Principles of Power Supply Circuitry

2.2 OPERATING PRINCIPLES OF POWER SUPPLY CIRCUITRY T h e p o w e r s u p p l y c i r c u i t r y o f t h i s p r i n t e r i s p r o v i d e d w i t h board (120V) or board (220/240 V). Both boards operate in the same way although the elements in the primary circuit are partly different. The power s...

Page 68 - OPERATING PRINCIPLES OF CONTROL CIRCUITRY; MAIN; Figure 2-38. Control Circuitry Block Diagram

2.3 OPERATING PRINCIPLES OF CONTROL CIRCUITRY This section describes the operating principles of the control circuitry of this printer - MAIN board. 2.3.1 Control Circuitry Overview The MAIN board is provided with (V25 +) (9.5 MHz) – a 16-bit one-chip micro- processor, - a gate array with memory man...

Page 71 - CPU

REV.-A 2.3.4 Paper Feed Motor Drive Circuit A stepping motor is used in the paper feed motor drive circuit of this printer. The motor is driven by 2-2 phase excitation and constant-current arrangement. For a single pulse, paper is fed 1/360 inch (minimum value). The acceleration/deceleration control...

Page 73 - Drive Circuit

REV.-A 2.3.6 Drive Circuit Figure 2-43 shows the drive circuit. The print data developed by CPU is transferred to the head control gate array - (ICI 2) via data bus. The data for 48 nozzles stored in is serially transmitted from HDDAT port to the head driver - 1632 is a clock for this serial transmi...

Page 75 - Block Diagram of Pump Motor Drive Circuit

Figure 2-47 shows the timing for discharge/charge pulse. Figure 247. Timing for Discharge/Charge (2) Voltage Supply Circuit Pulse The viscosity of ink is subject to change due to the temperature. If the viscosity is too high, ink injection becomes difficult. To eliminate this difficulty, the head dr...

Page 77 - Control Circuit

REV.-A 2.3.10 Control Circuit This printer is provided with an to store the data such as panel settings, paper position data (Paper cut position/Current printed line), wasted ink drain tank replacement counter, etc. when the main power is OFF. When the main power is ON, the data is stored in the RAM...

Page 78 - . 2 . 3 W a s t e d I n k D r a i n T a n k R e p l a c e m e n t

REV.-A CHAPTER 3 DISASSEMBLY AND ASSEMBLY 3 . 1 O V E R V I E W . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3.1.1 Precautions for Disassembling the ...

Page 79 - How to Make; and CLEANER

LIST OF FIGURES Figure 3-1. How to Make a False Ink Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2 Figure 3-2. Releasing Carriage Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 Figure 3-3. Setting Sho...

Page 80 - Abbreviations List of

Figure 3-36. Figure 3-37. Figure 3-38. Figure 3-39. Table 3-1. Table 3-2. Table 3-3. Table 3-4. Table 3-5. Table 3-6. Table 3-7. Table 3-8. Disassembly of Frame Assembly, RIGHT . . . . . . . . . . . . . . . . . . . . . . 3-33 Setting Release Lever . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Page 81 - . 1 O V E R V I E W; Precautions for Disassembling the Printer; W A R N I N G; ‘ANGER

3 . 1 O V E R V I E W This section describes the various points to note when disassembling, assembling and transporting the printer. 3.1.1 Precautions for Disassembling the Printer Follow the precautions below when disassembling the printer. W A R N I N G ● Disconnect the power cable before disassem...

Page 84 - to collect the waste ink that is used during the whole printer life.; However, it must be replaced in the

(2) Wasted Ink Drain Tank This printer is provided with the wasted ink drain tank, which is designed to have a sufficient capacity to collect the waste ink that is used during the whole printer life. However, it must be replaced in the following conditions. ● The “OVERFLOW” message is displayed. (Al...

Page 85 - Figure 3-3. Setting Shockproof Attachments

REV.-A (3) Transportation Make sure the following preparations are properly made before delivering the printer. ● C a p p i n g ● Removing ink cartridge ● Setting shockproof attachments ● P a c k a g i n g Packing Material Protective Sheet Packing Material Figure 3-3. Setting Shockproof Attachments ...

Page 90 - DISASSEMBLY AND ASSEMBLY; Be sure to read section

REV.-A 3.2 DISASSEMBLY AND ASSEMBLY This chapter describes procedures for disassembling main components of this printer. Unless otherwise s p e c i f i e d , t h e d i s a s s e m b l e d u n i t o r c o m p o n e n t s c a n b e r e a s s e m b l e d s i m p l y b y p e r f o r m i n g t h e disass...

Page 92 - Replacement

[ S t e p 6 ] [ S t e p 7 ] Disconnect the connector that connects the interlock switch to the resistor at the rear of the printer mechanism. Raise the front side of the HOUSING, UPPER with the rear side held. Figure 3-8. Housing Removal (3) 3.2.2 Replacement This section describes the procedures fo...

Page 93 - I I I I

REV.-A ASSEMBLY POINTS When assemble the follow the procedures shown below. [Step 1] [ S t e p 2 ] [ S t e p 3 ] [ S t e p 4 ] [ S t e p 5 ] [ S t e p 6 ] [ S t e p 7 ] Verify that the PIN, ADJUST on the carriage is set in the direction as shown in the b e l o w . II I \ PIN, ADJUST Mark Mark I I I ...

Page 94 - REQUIRED ADJUSTMENT ITEMS; If you have disassembled/assembled the; ASSEMBLY POINTS

REQUIRED ADJUSTMENT ITEMS If you have disassembled/assembled the make the following adjustment after repair. ● slant adjustment (Refer to section 4.5. 1.) If you have replaced the make the following adjustment in the specified sequence, (1) Platen gap adjustment (Refer to section 4.2.) (2) drive vol...

Page 95 - Separate the pump tube from the wasted ink drain tank.

REV.-A 3.2.4 Printer Mechanism Removal This section describes how to remove the printer mechanism. W A R N I N G When working with the printer mechanism, take sufficient care in handling the ink. Carefully read the precautions in 3.1.1 before beginning the work. C A U T I O N Discharge ink from the ...

Page 96 - C A U T I O N; PE sensor

[ S t e p 8 ] Disconnect the following connectors, which connect the printer mechanism to the MAIN board; CN 13 (Blue/6 pins), 14 (White/6 pins), 12 (White/2 pins), CN15 (White/2 pins), CN 18 pins), CN 17 pins), CN 11 (White/3 pins), CN 10 (Blue/3 pins), (Yellow/2 pins), (White/2 pins). R e m o v e ...

Page 99 - INK CARTRIDGE Removal

3.2.6 HOLDER INK CARTRIDGE Removal [Step 1] Remove the housing. (Refer to section 3.2.1.) [Step2] Remove the printer mechanism. (Refer to section 3.2.4) [Step 3] Unscrew screw 12) which fastens the HOLDER INK CARTRIDGE to the HOUSING, LOWER to remove the HOLDER INK CARTRIDGE together with the TORSIO...

Page 100 - Figure 3-20. Disassembly of PAPER HOLDING

3.2.7 Printer Mechanism Disassembly This section describes how to disassemble the printer mechanism. W A R N I N G When working with the printer mechanism, take sufficient care in handling the ink. Carefully read the precautions in 3.1.1 before beginning the work. 3.2.7.1 Disassembly of PAPER HOLDIN...

Page 106 - be seen at the end; R E Q U I R E D A D J U S T M E N T I T E M S

REV.-A When engaging the timing belt to the carriage, make sure that 3 grooves can be seen at the end of the belt as shown in Figure 3-27. 1 1 Timing Belt 3 grooves Figure 3-27. Engaging Timing Belt R E Q U I R E D A D J U S T M E N T I T E M S If you have reassembled the carriage, make the followin...

Page 109 - W h e n a t t a c h i n g t h e S E N S O R S U B; Before setting the platen, set up; the; other parts; as shown in the figure below.

[Step 12] Rotate the HOLDER, PLATEN, RIGHT and HOLDER, PLATEN, LEFT which fasten the PLATEN to the frame, LEFT/RIGHT, and remove the PLATEN HOLDER, PLATEN, LEFT/RIGHT Figure 3-31. Disassembly of PLATEN (2) ASSEMBLY POINTS When assembling the GUIDE, PAPER EJECT be sure to hook the TORSION SPRING 700 ...

Page 111 - X2 and

REV.-A 3.2.7.10 Disassembly of PAPER GUIDE IStepl] Remove thehousing. (Refer to section 3.2.1.) [Step2] Remove the printer mechanism. (Refer to section 3.2.4) Remove the CAP (Refer to section 3.2.7.2) Remove the FRAME, FRONT. (Refer to section 3.2.7.4) Remove the PAPER HOLDING (Refer to section [Ste...

Page 114 - When attaching the release lever to the FRAME; sure that all the teeth of the; gap gear are fully engaged with the teeth of the release lever.; Gear

REV.-A ASSEMBLY POINTS When attaching the release lever to the FRAME RIGHT, make sure that all the teeth of the gap gear are fully engaged with the teeth of the release lever. Release Lever I INTERMITTED Gear Posifien Figure 3-37. Setting Release Lever ,: R E Q U I R E D A D J U S T M E N T I T E M ...

Page 115 - DRIVE, and remove the; Figure 3-38. Disassembly of Tractor Assembly; When attaching the tractor to the SHAFT,

3.2.7.12 Disassembly of TRACTOR ASSY. [Step 1] Remove the TRACTOR GEARS (left/right) attached on the SHAFT, DRIVE, and remove the FRAME, (left/right). [Step 2] Remove the E-rings (6) attached on the SHAFT, DRIVE, and remove the tractors (left/right). TRACTOR GEAR \ FRAME, LEFT LEVER, RIGHT Figure 3-...

Page 117 - PLATEN GAP PARALLELISM ADJUSTMENT; the dial gauge base with a hexagonal screw.; F i g u r e 4 - 1 . S e t t i n g o f D i a l G a u g e

REV.-A This chapter describes the various adjustments you should make after you disassemble or replace any parts or components that require adjustment. Needless to say, you should also make adjustment in any case if the printer does not function properly or print quality is not good enough. Other co...

Page 118 - PLATEN GAP ADJUSTMENT

REV.-A [Step 4] Adjust the LEVER, PARALLEL, ADJUST so that the long needle of the dial gauge indicates a constant value at any point on the platen with an allowance of 3 divisions (0.03 mm) when you move the carriage to the left and right. Carriage CR, MAIN LEVER, PARALLEL, Figure 4-2. Platen Parall...

Page 119 - FLANGE NUT

REV.-A [Step2] Insert the thickness gauge (exclusively made by EPSON) between the platen and the and rotate the SHAFT, CR, MAIN so that the head is pressed lightly against the head. When rotating the SHAFT, CR, MAIN, you can make use of the notch at the right side of the shaft. 1.00 mm mm and o Carr...

Page 120 - TIMING BELT TENSION ADJUSTMENT

REV.-A 4.3 TIMING BELT TENSION ADJUSTMENT This adjustment is to change the tension of the timing belt to a proper level. this adjustment is not performed properly, printing settings will be interfered. This adjustment is required when you loosened the timing belt for disassembling or assembling the ...

Page 121 - DRIVE VOLTAGE ADJUSTMENT

4.4 DRIVE VOLTAGE ADJUSTMENT drive voltage of each should be adjusted individually, because all printheads are not exactly of the same characteristics. If it is not adjusted properly, print quality will be degraded. This adjustment is required when the or the printer mechanism is replaced. It is als...

Page 122 - Table 4-1. Head Drive Voltage and Jumper Setting; Head Drive Voltage

Table 4-1. Head Drive Voltage and Jumper Setting Head Drive Voltage Jumper 5 Setting Jumper 6 Setting 1 2 2 . 2 - 1 2 3 . 7 x 120.7- 122.1 Y 1 1 8 . 8 - 1 2 0 . 6 z 117.1 - 118.7 B x 1 1 5 . 5 - 1 1 7 . 0 Y 1 1 3 . 8 - 1 1 5 . 4 z 1 1 2 . 4 - 1 1 3 . 7 c x 1 1 0 . 8 - 1 1 2 . 3 Y 1 0 8 . 8 - 1 1 0 ....

Page 124 - Slant Adjustment; CAUTION

REV.-A 4.5 PRINT ADJUSTMENT The print adjustment can be divided into the inclination adjustment and print position adjustment. These adjustments can be performed by running the special program on the personal computer (EPSON PC/EQUITY or 100% IBM PC compatible machine) connected to the printer. 4.5....

Page 125 - P r i n t P o s i t i o n A d j u s t m e n t

[Step 1 1] Center the carriage and loosen the screw (fastening the printhead)on the righthand side. Then, holding the head with the hand, turn the PIN, ADJUST. The PIN, ADJUST can be turned to 5 different positions. Printhead inthead Fixed PIN, ADJUST Screw Figure 4-9. Head Inclination Adjustment [S...

Page 126 - ADJUSTMENT ON MAIN BOARD

REV.-A [Step 6] When “’80 COLUMN...1, 136 COLUMN...2° is displayed, select 80 column or 136 column for your machine. ● [Step 7] When HEAD END...E” is displayed, select by entering “l’”. [Step 8] When “PRINTER is displayed, enter the applicable printer number and press the return key. [Step 9] Print ...

Page 130 - REPAIR BY UNIT REPLACEMENT

5.2 REPAIR BY UNIT REPLACEMENT When a problem occurs, you can separate a particular unit that is responsible for the particular problem by referring to the symptoms listed below. Refer to Table 5-4, identify what the problem is, and then perform the checks according to the corresponding flowchart. T...

Page 131 - power

REV.-A (1) Printer fails to operate at time of power on. Use the correct input voltage. Yes Replace the fuse and pull out CN4 on the MAIN board. No Check the volta e of the power boar . No ● Replace the MAIN board. No Replace the printer mechanism. “Yes Replace the power board. N D N D 5-4

Page 135 - I ID

(4) Paper is not fed normally. that there are no stray pieces of paper oranything else nothingabnormal within the paper the paper path. Remove any stray pieces or foreign objects I Turn o the power turn smoothly ? A Replace the printer Yes mechanism. Replace MAIN board. < Was the paper feed Nomot...

Page 138 - REPAIR OF POWER SUPPLY BOARD; T a b l e 5 - 5 . R e p a i r o f P o w e r S u p p l y B o a r d

REV.-A 5.3 REPAIR OF POWER SUPPLY BOARD This section describes the problems related to the power supply board. The table below provides various symptoms, likely causes, and checkpoints. The checkpoints refer to waveforms, resistance, and other values to be checked to evaluate the operation of each c...

Page 140 - REPAIR OF MAIN BOARD; T a b l e 5 - 6 . R e p a i r o f M a i n B o a r d

REV.-A 5.4 REPAIR OF MAIN BOARD This section describes the problems related to the MAIN board. The table below provides various symptoms, likely causes, and checkpoints. The checkpoints refer to waveforms, resistance, and other values to be checked to evaluate the operation of each component. Check ...

Page 150 - T a b l e 6 - 2 . L u b r i c a t i o n P o i n t s

REV.-A CHAPTER 6 M A I N T E N A N C E 6.1 PREVENTIVE MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 6.2 LUBRICATION AND ADHESIVE APPLICATION . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 LIST OF FIGURES F...

Page 155 - A P P E N D I X; C O N N E C T O R; M A I N B o a r d C o m p o n e n t L a y o u t ( B a c k S i d e ) .

A P P E N D I X C O N N E C T O R CIRCUIT DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CIRCUIT BOARD COMPONENT LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E ...

Page 156 - Table

LIST OF TABLES Table A - 1 . Table A-2. Table A-3. Table A-4. Table A-5. Table A-6. Table A-7. Table A-8. Table A-9. Table A-10. Table A-1 1. Table A-12. Table A-1 3. Table A-14. Table A-1 5. Table A-16. Table A-1 7. Table A-18. Table A-19. Table A-20. Table A-21. Connector Summary . . . . . . . . ....

Page 157 - A.1 CONNECTOR SUMMARY

A.1 CONNECTOR SUMMARY F i g u r e A - 1 i l l u s t r a t e s t h e i n t e r c o n n e c t i o n o f t h e p r i m a r y c o m p o n e n t s . T a b l e A - 1 s u m m a r i z e s t h e functions and sizes of the connectors. Case Open Sensor Control Panel P r i n t e r M e c h a n i s m M o d e l - ...

Page 160 - Signal

No. 2 3 45 6 7 8 9 1011 T a b l e A - 4 . M A I N ) Signal Name + 5+ 5 GPGP GP + 3 5+ 3 5 NC Function + 5 + 5 Signal ground Signal groundSignal groundPower groundPower groundPower ground + 3 5 Not connect Table A-1 1. MAIN) No. Signal Name Function I 2 3 - LEDPE Paper-end sensor (R) Signal ground Ta...

Page 162 - F i g u r e A - 4 . C 0 7 6 P S B B o a r d C i r c u i t

F i g u r e A - 4 . C 0 7 6 P S B B o a r d C i r c u i t A-9

Page 164 - F i g u r e; D i a g r a m

1 I I .1 > 7 1 R e c t i f i e r F i g u r e A-6. C076 PSE Board Circuit A-1 1 F i l t e r D i a g r a m

Page 165 - Figure A-7. C076 PSE Boerd Circuit Diagram

1 , I Figure A-7. C076 PSE Boerd Circuit Diagram A-1 2

Page 166 - F i g u r e A - 8 . C o n t r o l P a n e l B o a r d C i r c u i t D i a g r a m

I I L I 1 F i g u r e A - 8 . C o n t r o l P a n e l B o a r d C i r c u i t D i a g r a m A-1 3

Page 167 - A.3 CIRCUIT BOARD COMPONENT LAYOUT

A.3 CIRCUIT BOARD COMPONENT LAYOUT ‘ – u s 1 u . Figure A-9. MAIN Board Component Layout (Surface) A-1 4

Page 169 - II II; II; Figure A-1 1. C076 PSB Board Component Layout

II II – - I L2 II I ● I . .?.. * Figure A-1 1. C076 PSB Board Component Layout A-1 6

Page 170 - II I; I I; F i g u r e A - 1 2 . C 0 7 6 P S E B o a r d C o m p o n e n t L a y o u t

REV.-A II I CN I I - - I I I CN3 I I 2 0 0 4 2 2 5 0 0 F i g u r e A - 1 2 . C 0 7 6 P S E B o a r d C o m p o n e n t L a y o u t A-1 7

Page 173 - A.5 CASE OUTLINE DRAWING; Case Outline Drawing

REV.-A A.5 CASE OUTLINE DRAWING I 1 r I I J 325 mm r-= Figure A-19. Case Outline Drawing A-26

Page 174 - F i g u r e A - 2 0 . S Q - 1 1 7 0 C a s e O u t l i n e D r a w i n g

I -----1 1----1 I I ! , 1 “. I 1 1 . J / ’ 325 mm F i g u r e A - 2 0 . S Q - 1 1 7 0 C a s e O u t l i n e D r a w i n g A-27

Page 175 - EPSON

EPSON SEIKO EPSON CORPORATION PRINTER DIVISION EPSON OVERSEAS MARKETING LOCATIONS EPSON AMERICA, INC. EPSON DEUTSCHLAND 20770 Madrona Avenue 6 , 4 0 0 0 D u s s e l d o r f 1 1 Torrance CA 90503, U . S . A . G e r m a n y P h o n e : ( 2 1 3 ) 7 8 2 - 0 7 7 0 Phone: (02 1 1) 56030 F a x : ( 2 1 3 ) ...