Page 2 - NOTICE
NOTICE • All right reserved. Reproduction of any part of this manual in any form wharsoever without SEIKO EPSON’s express written permission is forbidden. • The contents of this manual are subject to change without notice. • All efforts have been made to ensure the accuracy of the contents of this m...
Page 4 - PREFACE; The contents of this manual are subject to change without notice.
PREFACE This manual describes functions, theory of electrical and mechanical operations, maintenance, and repair ofthe FX-2170. The instructions and procedures included herein are intended for the experienced repairtechnician, and attention should be given to the precautions on the preceding page. T...
Page 5 - REVISION SHEET; Revision; st issued
REVISION SHEET Revision Issued Date Revision Page Rev. A April 8,1996 1st issued
Page 6 - TABLE OF CONTENTS
TABLE OF CONTENTS CHAPTER 1. GENERAL DESCRIPTION CHAPTER 2. OPERATION PRINCIPLES CHAPTER 3. DISASSEMBLY AND ASSEMBLY CHAPTER 4. ADJUSTMENTS CHAPTER 5. TROUBLESHOOTING CHAPTER 6. MAINTENANCE APPENDIX
Page 7 - CHAPTER 1 Product Description; Table of Contents; Hardware Specifications
CHAPTER 1 Product Description Table of Contents 1.1 Specifications 1-1 1.1.1 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1.1.2 Accessories . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . 1-3 1.2 Hardware Spe...
Page 8 - List of Figures
1.6 MAIN COMPONENTS 1-35 1.6.1 C186 MAIN Board Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6.2 Board Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6.3 PNL Board Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1....
Page 9 - List of Tables; Table 1-14. Specifications for Continuous Paper (Single Sheet and
List of Tables Table 1-1. Items Included with the Printer . . . . . . . . . . . . . . . . . . . . . .........1-3Table 1-2. Consumables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .1-3 Table 1-3. Optional Units . . . . . . . . . . . . . . . . . . . . . . . . . ....
Page 10 - Features
Manual Product Description 1.1 Specifications These specifications provide statistical information for the serial impact dot matrix printer. Features The is a 24pin serial impact dot-matrix printer suitable for the VAR (value addedreseller) market. The major features of this printer are: . Print spe...
Page 11 - Figure 1-1 Exterior View of the
Product Description Service Manual Figure 1-1 Exterior View of the 1-2
Page 12 - Items included in the printer; carton; Table 1-1 Items Included with the Printer; Part Number; Table 1-3 Optional Units; Description
Service Manual Product Description 1.1.2. Accessories ● Items included in the printer carton Table 1-1 Items Included with the Printer Enclosed Items Quantity User’s guide 1 Driver diskette 1 Ribbon cartridge 1 Power cord 1 . Consumables Table 1-2 Consumables Consumable Item Part Number Ribbon cartr...
Page 13 - Print
Product Description Manual 1.2 Hardware Specifications This section provides detailed hardware specifications for the 1.2.1 Printing Method . method . Color . Number of pins . Pin arrangement ● Pin diameter Impact dot matrix Black24 12x 2 staggered 0.2 mm (0.0079 inch) (1/180’) 0.2° . #2 T #4 #6 #7 ...
Page 14 - Copy capability; Table 1-4 Print Speed and Printable Columns; Acoustic noise
Service Manual Product Description 1.2.2 Printing Specifications ● Copy capability 1 original+ 3copies ● Print speed and printable columns Table 1-4 Print Speed and Printable Columns Print Speed Print Mode Character Pitch Printable Columns Normal copy High-speed draft 10 136 300 244 10 136 275 183 D...
Page 15 - Table 1-6 Paper Path and Paper Types
Product Description Service Manual 1.2.3 Paper Handling Specifications ● Feeding method Friction feed (front, rear) Push tractor feed (front, rear) Push and pull tractor feed (front, rear, bottom) . Feeder Front push mar push tractor, 1 /bin 2 (Option) Pull tractor (Option) and roll paper holder (Op...
Page 16 - Table 1-7 Paper Thickness Lever Positions
Service Manual Product Description . Paper thickness lever Set the paper thickness lever to the appropriate position, asindicated in the following table. Table 1-7 Paper Thickness Lever Positions Paper Thickness ( inches) Paper Thickness (mm) Lever Minimum Maximum Maximum o 0.0024 0.0047 0.065 0.12 ...
Page 17 - This; Cut Sheets; Table 1-9 Specifications for Cut Sheets
Product Description Service Manual 4. Push-pull tractor feed ● Set the release lever to the REAR PUSH/FRONT PUSH position. ● Load paper from the front or rear entrance. ● Remove the paper eject assembly and attach the pull tractor unit. ● Remove any slack in the paper between the platen and pull tra...
Page 18 - Printable area; Table 1-10 Printable Area for Cut Sheets; Abbreviations; or more; BM; Figure 1-3 Printable Area; for; Sheets ‘
Service Manual Product Description ● Printable area Figure 1-3 shows the printable area for cut sheets. The table defines the abbreviations used the figure. Table 1-10 Printable Area for Cut Sheets Abbreviations Single Sheet Multipart PW (width) Refer to Table 1-8. Refer to Table 1-9. PL (length) Re...
Page 19 - Envelopes and Card Stock; Table 1-11 Specifications for Envelopes
Product Description Service Manual Envelopes and Card Stock ● Paper/media specifications The following tables gives specifications for envelopes and card stock. Table 1-11 Specifications for Envelopes No. 6 Width envelopes Length Total thickness Weight Quality Front Entry Rear Entry Minimum Maximum ...
Page 20 - Table 1-13 Printable Area for Envelopes and Card Stock; Pw; Figure 1-4 Printable Area for Envelopes and Card Stock
Service Manual Product Description ● Printable area The figure below shows the printable area for envelopes and card stock. Each is defined-in the following table. - Table 1-13 Printable Area for Envelopes and Card Stock Abbreviations Envelopes Card Stock PW (width) Refer to Table 1-11. Refer to Tab...
Page 21 - Continuous Paper; Table 1-14 Specifications for Continuous Paper (Single Sheet and; Front Entry
Product Description Service Manual Continuous Paper ● Paper/media specifications The following table gives specifications continuous paper. Table 1-14 Specifications for Continuous Paper (Single Sheet and Width Length Copies Total thickness Weight (not Weight (one sheet of a form) Types of paper Bin...
Page 22 - Table 1-15 Printable Area for Continuous Paper; Figure 1-5 Printable Area for Continuous Paper
Service Manual Product Description ● Printable area The figure below shows the printable area for continuous paper. Each abbreviation is defined in the following table. Table 1-15 Printable Area for Continuous Paper I Abbreviations I Continuous Paper PW (width) Refer to Table 1-14. PL (length) Refer...
Page 23 - Continuous Paper with Labels; Table 1-16 Specifications for Continuous Paper with Labels; . Printable size and area
Product Description Service Continuous Paper with Labels ● Paper/media specifications The following table gives the specifications for continuous paper with labels. Table 1-16 Specifications for Continuous Paper with Labels Front Entry Rear Entry Bottom Entry Minimum Maximum Minimum Maximum Minimum ...
Page 24 - Roll Paper; Table 1-17 Specifications for Roll Paper; Table 1-18 Printable Area for Roll Paper; Figure 1-7 Printable Area for Roll Paper
Service Manual Product Description Roll Paper Note: Roll paper is not available in all models, and not available in the U.S. . Paper/media specifications The following table shows specifications for roll paper. Table 1-17 Specifications for Roll Paper I Front Entry Rear Entry Minimum Maximum Minimum...
Page 25 - Table 1-19 Statistics on the Ribbon; Table 1-21 Electrical Specifications for the 220/240 V Version; Item
Product Description Service 1.2.5 Ribbon Specifications Table 1-19 Statistics on the Ribbon Item Specification Type Fabric Color Black Ribbon life 8 million characters (draft, 10 character) Dimension 506.0 mm (W) x 123.5 mm (D) x 23.0 mm (H) 19.92” X 4.86” (D) X .91 “ (H) 1.2.6 Electrical Specificat...
Page 26 - Table 1-22 Environmental Requirements; During printing on; Table 1-23 Reliability Statistics; million lines (except; Table 1-24 Safety Information for Printer Models
Service Manual Product Description 1.2.7 Environmental Conditions Table 1-22 explains the conditions the printer requires during operation and when not operating, Table 1-22 Environmental Requirements Item I Specifications Temperature Humidity Resistance to shack Resistance to vibration 5 to 35° C/4...
Page 27 - Product Description; Table 1-25 CE Marking
Product Description LQ-2070 Service Manual 1.2.10 CE Marking The following table lists CE marking information. Table 1-25 CE Marking Low Voltage Directive 73/23 / EN60950 EMC Directive 89/336/ EN55022 class BEN50082-1 , , Non-Automatic Instruments Directive EN45501 1.2.11 Physical Specifications Tab...
Page 28 - Table 1-28 Capacity of the Stacker; Single sheets; Envelopes; Table 1-29 Environmental Conditions; Operating; Temperature; envelopes, and card stock
Service Manual Product Description . Stacker capacity Table 1-28 Capacity of the Stacker Bin 1 Bin 2 Single sheets 140 sheets 1) 100 sheets 2) - - - - Envelopes 15 sheets 3) 28 sheets 4) - - - - Card stock 30 sheets 5) - - - - 36 sheets (3$6) ... - Single sheets (weight: 22 lb), except for A3 paper ...
Page 29 - Firmware Specifications; Table 1-30 Character Tables; Version
Product Description Service Manual 1.3 Firmware Specifications This section provides detailed information about firmware. 1.3.1 Control Codes and Fonts ● Control codes ● Typefaces ● International character sets . Character tables and IBM 2390/2391 plus emulations. Bitmap fonts EPSON Draft 10 12 15 E...
Page 31 - Figure 1-8 Data Transmission Timing; Parameter
Product Description Service Manual DATA ‘ T R O B E BUSY 1 I ACKNLG I Figure 1-8 Data Transmission Timing Table 1-32 Maximum and Minimum Timings for Data Transmission Parameter Minimum Maximum setup 500 - . . . 500 ----- t stb 500 . . . . tready 0 - . . . - . . 500 - . . - . . . tack 500 10 o - . . ...
Page 32 - Table 1-33 Pin Assignments for Reverse Channel; Pin
Service Manual Product Description 1.3.2.2 Parallel Interface (Reverse Channel) ● Transmission mode nibble mode . Adaptable comector 57-30360 or equivalent ● Synchronization Refer to the Specification . Handshaking Refer to the Specification ● Signal level level 1 device) . Data transmission timing ...
Page 34 - In this; Table 1-34 Paper Handling Sequence 1; Printer status; Table 1-35 Paper Handling Sequence
Service Manual Product Description 1.3.3 Paper Handling Sequence In this section, paper handling firmware sequences are described in several cases. ● Printer status Printer is on line (not in the state). No PE sensor detects that paper is loaded.The release lever position is set to continuous paper....
Page 35 - The release lever is set to continuous paper; Table 1-36 Paper Handling Sequence 3; Table 1-37 Paper Handling Sequence 4
Product Description Service Manual . Printer status The front PE sensor detects that paper is loaded in the front paper path. The release lever is set to continuous paper Table 1-36 Paper Handling Sequence 3 Occurrence Result PAUSE button pressed Printer goes off or on line. button Printer a line fe...
Page 36 - Table 1-38 Paper Handling Sequence 5
Service Manual Product Description ● Printer status The rear PE sensor detects that paper is loaded in the rear paper path. Release lever position is set to Table 1-38 Paper Handling Sequence 5 Occurrence Result Pause button pressed Printer goes on or off line. button pressed Printer performs a line...
Page 37 - Table 1-40 PW Sensor Operation
Product Service Manual 1.3.4. Paper Width (PW) Sensor Operation The PW sensor is mounted on the ribbon mask holder to measure the paper width and detect the top edge of the paper. However, in cases where print data is over the paper width, the image cutfunction does not operate in all modes. This se...
Page 38 - Operating Instructions; Panel Operations; for various printer; ‘in; Figure 1-9 Control Panel; Operation in normal mode; Table 1-41 Operation in Normal; Mode
Service Manual Product Description 1.4 Operating Instructions This section provides detailed information about the LQ-2070 control panel buttons and 1.4.1 Control Panel Operations The printer control panel contains 6 non-lock type push buttons and 8 for various printer functions. The exterior view o...
Page 39 - Operations at power on; LF I FF; Operation in default setting mode; Button; indicates the beeper sounds for 100 ms with an interval of 100
Product Description Service Manual ● Operations at power on Turning the printer on while pressing panel buttons executes the functions below: Table 1-42 Operation at Power On Button Function Load / Eject LQ self-test LF I FF Draft self-test Load Eject and Data dump Condensed Default setting Font and...
Page 41 - Figure l-n Hexadecimal Printout
Product Description Manual 1.4.5 Self-test Function Pressing the Load / Eject button while turning on the printer puts the printer in LQ self-test mode. Pressing the button while turning on the printer puts the printer in Draft self-test mode. You can stop the self-test temporarily by pressing the P...
Page 42 - Clear Function; Font and Tear Off /Bin buttons while turning; Initialization Settings; Setting
Service Manual Product Description 1.4.7 Default Setting Function Pressing the Pitch button while turning on the printer puts the printer in default setting mode. Some default printer settings can be changed in this operation. The method for setting defaults is described in the instruction sheets, w...
Page 43 - Pause
Product Description Service 1.4.9 Bidirectional Adjustment Function Pressing the Pause button while turning on the printer puts the printer in bidirectional adjustment mode. In this mode, you can adjust the bidirectional alignment for the following three modes: 1. Draft mode 2. Draft copy mode 3. LQ...
Page 45 - MAIN Board Assembly; These boardshave two AC input voltage ratings: 120VAC; Board Assembly
Product Description Service Manual 1.6.1 MAIN Board Assembly The MAIN board consists of a CPU, an gate array, a ROM, a an etc. Head ICI 1,14 PF Motor Driver TRANSISTOR TEA3718SDP 5 PS RAM / \ IC12 8 ‘ CR Motor Driver CN2 for Option F SLA7024M Figure 1-13 MAIN Board Assembly 1.6.2 Board Assembly Thes...
Page 46 - Figure
Product Description Service Manual 1.6.5. Housing Assembly This consists of printer cover assembly, edge guide assembly, upper housing, lower housing assembly, etc. Figure Housing Assembly 1-38
Page 47 - PRINTER MECHANISM OPERATION
CHAPTER 2 Operating Principles Table of Contents 2.1 PRINTER MECHANISM OPERATION 2-1 2.1.1 Printing Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12.1.2 Carriage Movement Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22....
Page 49 - PRINTER MECHANISM OPERATION; arranged on the printhead in 2 columns.; P l a t e n; Operating Principles
2.1 PRINTER MECHANISM OPERATION This section describes the printer mechanism and explains how it works. 2.1.1 Printing Mechanism The printing mechanism is composed of the printhead, ink ribbon, and ribbon mask. The printhead is an24-pin (12 pins × 2) head for impact dot printing. To improve the dura...
Page 50 - Table 2-1. CR Motor Assembly Specifications; Category; Type; Figure 2-2 Carriage Movement Mechanism; Operation Principles
2.1.2 Carriage Movement Mechanism The carriage movement mechanism consists of the carriage assembly, carriage (CR) motor, timing belt,driven pulley, home position (HP) sensor, etc. The CR motor drives the timing belt. The carriage assembly isconnected to the timing belt, which is moved by the CR mot...
Page 51 - between the platen gap and the print speed.; Figure 2-3 Platen Gap Adjustment Lever
2.1.3 Platen Gap Adjustment You can adjust the platen gap (the gap between the platen and printhead) to allow the printer to use paper ofdifferent weights or thicknesses. When you move the platen gap adjust lever forward or backward, thecarriage guide shaft rotates. This rotation moves the carriage ...
Page 52 - Figure 2-4 Release Switch
2.1.4. Paper Handling Mechanisms During normal operation, paper is fed into the printer, advanced to the specified position, and then ejectedfrom the printer. These paper-handling operations are performed by various paper handling mechanisms, suchas tractors, platens, rollers, and gears. This sectio...
Page 53 - Friction Advance Method; Figure 2-5 Friction Advance Operation Using the Top Entrance
2.1.4.2. Paper Advance Mechanism This section describes how the friction and tractor advance mechanisms work to move the paper through theprinter. 1. Friction Advance Method Paper is held between the platen and the paper guide rollers and between the paper tension roller and papertension unit cover....
Page 54 - Push Tractor Method
2. Push Tractor Method The push tractor method can be used with either the rear or front entrance. When the push tractor method is used with the rear entrance, the torque generated by the PF motor istransmitted to the push tractor gear through the PF motor pinion gear, paper advance reduction gear, ...
Page 56 - Pull Tractor Method
3. Pull Tractor Method The pull tractor advances paper in basically the same way as the push tractor. The push tractor is installed atthe paper entrance and pushes paper into the printer. On the other hand, the pull tractor is installed at thepaper exit and pulls paper out of the printer mechanism. ...
Page 60 - Down
2. Rear Entrance Figures 2-13, 2-14, and 2-15 show the paper paths for tractor feeding using the rear entrance. You can use therear entrance with any of the following paper feed methods: push tractor feed, pull tractor feed, or push-pulltractor feed. When you use the rear entrance, the rear PE senso...
Page 64 - Belt driven pulley; Figure 2-21 Ribbon Advance Mechanism
2.1.6 Ribbon Advance Mechanism The ribbon is held between the ribbon advance roller (ribbon driven gear) and the ribbon pressure roller.When the carriage moves from left to right and vice versa on the CR guide shaft, the timing belt turns thebelt-driven pulley. Then the torque is transmitted to the ...
Page 65 - POWER SUPPLY OPERATION; Board; Table 2-6 Power Supply Output Voltages and Applications; Applications; Figure 2-22 shows a block diagram of the power supply circuitry.; Figure 2- 22 Power Supply Circuit Block Diagram
2.2 POWER SUPPLY OPERATION The printer can be powered by either of two power supply boards: the C166 PSB (120 V) or C166 PSE (230V) power supply. These boards are the same as the FX-2170. Additionally, the PSB and PSE boards functionthe same, except for a difference in primary circuitry. The power s...
Page 66 - Power Switch Circuit; This circuit is shown below.; Figure 2-23 Power Switch Circuit; GND; Figure 2-24 Over Voltage Protection Circuit
2.2.2 Power Supply Circuit Operation The power supply circuit is composed of an RCC (ringing choke converter) system and the power switchcircuit in the secondary circuitry. The power supply circuit has several protection and control circuits. Thissection describes these circuits. 1. Power Switch Cir...
Page 67 - +35 V Constant Voltage Control Circuit; The +35 V constant voltage control circuit is illustrated below.; Figure 2-25 +35 V Line Constant Voltage Control Circuit; Figure 2-26 +35 V Line Overload Detection Circuit
3. +35 V Constant Voltage Control Circuit The +35 V constant voltage control circuit is illustrated below. The constant voltage control circuit operates to keep the 35 V line at 35 V ± 6 %. When the voltage between ZD51 and ZD85 becomes 32.7 V ± 2.75 %, PC1 turns on, and then Q2 also turns on. Conse...
Page 68 - +35 V Line Over Current Protection Circuit; The +35 V line over current control circuit is illustrated below.; +5 V Line Over Current Protect Circuit; +5 V line over current control circuit is shown below.; Figure 2-27 +35 V Line Over Current Protection Circuit; Figure 2-28 +5 V Line Over Current Protection Circuit
5. +35 V Line Over Current Protection Circuit The +35 V line over current control circuit is illustrated below. When the +35 V line becomes less than 27 V, Q82 and Q54 turn on, and PC1 turns on. Consequently, Q32and Q31 turn off, and then switching FET Q1 shuts off. When the protection circuit opera...
Page 69 - +5 V Line Constant Voltage Control Circuit; The +5 V line constant voltage control circuit is shown below.; Figure 2-29 +5 V Line Constant Voltage Control Circuit
7. +5 V Line Constant Voltage Control Circuit The +5 V line constant voltage control circuit is shown below. Port 16 of IC51 (TL494CN) monitors the + 5 V line, and the voltage is compared with the standard voltage,which is input into port 15. When the voltage of port 16 goes below 4.81 V or above 5....
Page 70 - Overview of Control Circuit Operation; Figure 2-30 Control Circuit Block Diagram
2.3 CONTROL CIRCUIT The control circuit consists of the C186 MAIN board assembly and C165 PNL board This section describesthe major components and explains how the boards work. 2.3.1 Overview of Control Circuit Operation The printer’s control circuit includes a TMP96C041AF CPU that runs at 17.20 MHz...
Page 71 - Table 2-7 Functions of the Main Board; IC; Figure 2-31 Data Flow
The following figure shows the data flow from the host computer to the printhead. Data sent from the hostcomputer is converted to image data and transmitted to the printhead through the gate array. The following table lists the each function of the main components of the C186 MAIN board. Table 2-7 F...
Page 72 - Figure 2-33 Reset Signal Output Timing; Figure 2-32 Reset Circuite; Figure 2-34 Printhead Drive Circuit
2.3.2 System Reset Circuit Control circuits IC1 and IC2 are initialized when a RESET signal (LOW level) is output from port 1 (VOUT)of IC10. IC10 monitors the +5 V line on port 3, and resets under the following conditions: 1. When the power supply is turned on, a RESET signal is output. RESET is can...
Page 73 - The CR motor driver circuit is shown below.; Table 2-8 CR Motor Driver Modes
2.3.4 CR Motor Driver Circuit The CR motor driver circuit is shown below. The carriage motor driver circuit controls the CR motor, using an open-loop, constant drive arrangement. 2-2and 1-2 phases excite the motor. A 2-2 phase step is equivalent to a 1-2 phase step doubled. Ports 1 to 4 ofthe SLA702...
Page 74 - The figure below shows the PF motor driver circuit.; CPU; EEPROM; Figure 2-37 EEPROM Control Circuit
2.3.5 PF Motor Driver Circuit The figure below shows the PF motor driver circuit. The gate array receives phase data from the CPU via ports 7 (PPG3), 8 (PPG2), 9 (PPG1), and 10 (PPG0),converts the data to TEA3718SDP form, and then sends that phase data via ports 32 (PHASEA) and ports 129(PHASEB) to ...
Page 75 - Figure 2-38 Sensor Circuit
2.3.7 Sensor Circuits The CPU detects conditions of the following sensors: home position (HP) sensor, release sensors 1 and 2,platen gap (PG) sensor, rear and front paper end (PE) sensors, paper width (PW) sensor. Two types of sensors are used in this printer. Release sensors 1 and 2, the PG sensors...
Page 76 - PRINTER DISASSEMBLY AND ASSEMBLY
CHAPTER 3 Disassembly and Assembly Table of Contents 3.1 OVERVIEW 3-1 3.1.1 Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13.1.2 Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 79 - Follow the precautions below for disassembly or assembly.; WARNING; To maintain efficient printer operation:; Tool; All tools are commercially available.; Table 3-2. Equipment Required for Maintenance; Disassembly and Assembly
3.1 OVERVIEW This section describes various points to note when disassembling and assembling the printer. 3.1.1 Precautions Follow the precautions below for disassembly or assembly. WARNING Before disassembling, assembling, or adjusting the printer, disconnect the power supply cable fromthe AC power...
Page 80 - Table 3-3. Inspection Check List for the Repaired Printer
3.1.3 Service Checks After Repair Before returning the printer after service, use the check list in Table 3-3, which provides a record to makeservicing and shipping more efficient. Table 3-3. Inspection Check List for the Repaired Printer Category Component Item to Check Is Check Required? Printerun...
Page 81 - Top; Pan; Body; Figure 3-1 Screw Types and Abbreviations
3.1.4 Specifications for Screws Table 3-4 lists the abbreviations used in the following sections for small parts, such as screws and washers. Table 3-4. Screw Types and Abbreviations Abbreviation Part Name CPS Cross-recessed pan head S-tight screw CBB Cross-recessed bind head B-tight screw CBS Cross...
Page 82 - CAUTION; Figure 3-2 Flowchart for Disassembling the Printer
3.2. PRINTER DISASSEMBLY AND ASSEMBLY This section describes procedures for disassembling and assembling the main components of the printer.When the procedure for installing a component is simply the reverse of removing the component, this chapterdoes not describe the assembly procedure. If necessar...
Page 83 - Note; Figure 3-3 Before Starting the Disassembly Procedure
3.2.1. Before Starting Disassembly Procedures 1. Remove the following parts: ➮ Front edge guide assembly ➅ Front cover ➆ Bottom cover ➬ Rear edge guide assembly ➉ Printer cover ➴ Paper eject assembly . ➄ Front/rear tractor assembly ➦ Ribbon cartridge Refer to the following figure. Note Remove the pa...
Page 84 - Remove the panel board assembly from the upper housing assembly.; Assembly Notes; Figure 3-4 Removing the Panel Board Assembly; Lock Cover for CN 1; Figure 3-5 Lock Cover for CN1 and the FFC
3.2.2. Removing the Panel Board Assembly 1. Remove the printer cover and ribbon cartridge (see Section 3.2.1). 2. Release the left clips for the panel board assembly by pushing them from the cutout located onthe inside front of the upper housing assembly. 3. Release the flexible flat cable (FFC) by ...
Page 85 - The tightening torque for the 2 CBS screws (3; Figure 3-6 Removing the Printhead
3.2.3. Removing the Printhead 1. Remove the printer cover and ribbon cartridge (see Section 3.2.1). 2. Remove 2 CBS screws (3 × 10, F/Zn) securing the printhead to the CR assembly. 3. Remove the printhead from the CR assembly. 4. Disconnect 2 wide FFCs from the printhead and then disconnect the narr...
Page 86 - Disconnect the connector cable for the HP sensor.; Assembly Note; Notice the direction for mounting the HP sensor.; Figure 3-8 Removing the HP Sensor
3.2.4 Removing the HP Sensor 1. Remove the printer cover, ribbon cartridge, front edge guide, and front cover (see Section 3.2.1). 2. Disconnect the connector cable for the HP sensor. 3. Remove the HP sensor by pushing up and releasing the 2 clips at the bottom of the HP sensorfrom the front paper e...
Page 87 - Mount the; photo sensor to the bottom line of the groove.; Figure 3-10 Mounting Position for the PW Sensor Assembly
Assembly Notes Mount the PW sensor assembly onto the ribbon mask holder groove, aligning the bottom line of micro photo sensor to the bottom line of the groove. Whenever you remove the PW sensor assembly, clean the surface of the sensor by wiping it with asoft material. If the surface is not clean, ...
Page 88 - Adjust the platen gap. Refer to Chapter 4.; Figure 3-11 Releasing the Locks for the Bushings
3.2.6 Removing the Platen Assembly 1. Remove the printer cover, ribbon cartridge, and platen knob (see Section 3.2.1). 2. Release both locks for the left and right bushings (8 mm) by pushing the lever holder for thebushings outside, and then pulling the holder lever forward. 3 Slide the platen assem...
Page 89 - Removing the Upper Housing Assembly; Remove 4 CBB screws (4; The tightening torque for the CBB (4; Figure 3-14 Removing the Upper Housing Assembly
3.2.7 Removing the Upper Housing Assembly 1 Remove the rear edge guide assembly, paper eject assembly, rear tractor unit, and printer cover(see Section 3.2.1). 2. Remove the panel board assembly (see Section 3.2.2). 3. Remove 4 CBB screws (4 × 14, F/Zn) securing the upper housing assembly. 4. Remove...
Page 90 - The tightening torque for the 2 CR mounting screws =; Figure 3-15 Removing the CR Motor Assembly
3.2.8 Removing the CR Motor Assembly 1 Remove the rear edge guide assembly, paper eject assembly, rear tractor unit, and printer cover(see Section 3.2.1). 2. Remove the panel board (see Section 3.2.2) and upper housing assembly (see Section 3.2.7). 3. Remove the 2 CR mounting screws securing the CR ...
Page 91 - The tightening torque for the printer mechanism mounting screw =; Figure 3-16 Removing the Printer Mechanism
3.2.9 Removing the Printer Mechanism 1. Remove the rear/front edge guide assembly, front cover, paper eject assembly, rear/front tractorunits, and printer cover (see Section 3.2.1). 2. Remove the panel board assembly (see Section 3.2.2) and upper housing assembly (see Section3.2.7). 3. Remove 3 CBS ...
Page 92 - The tightening torque for the CB and CBS screws (3; CB Screw; Figure 3-17 Removing the PF Motor
3.2.9.1 Removing the PF Motor 1. Remove the rear/front edge guide assembly, front cover, paper eject assembly, rear/front tractorunit, and printer cover (see Section 3.2.1). 2. Remove the panel board (see Section 3.2.2) and upper housing assembly (see Section 3.2.7). 3. Remove the printer mechanism ...
Page 93 - Figure 3-18 Removing the PG Sensor Assembly
3.2.9.2 Removing the PG Sensor Assembly 1. Remove the rear/front edge guide assembly, front cover, paper eject assembly, rear/front tractorunit, and printer cover (see Section 3.2.1). 2. Remove the panel board (see Section 3.2.2) and upper housing assemblies (see Section 3.2.7). 3. Remove the printe...
Page 94 - Remove 1 CBS screw (3; Figure 3-19 Removing the Right Frame Assembly; Figure 3-20 Removing the Right Sub Frame
3.2.9.3 Removing the Right Frame Assembly 1. Remove the rear/front edge guide assembly, front cover, paper eject assembly, rear/front tractorunit, and printer cover (see Section 3.2.1). 2. Remove the panel board (see Section 3.2.2) and upper housing assembly (see Section 3.2.7). 3 Remove the printer...
Page 95 - Adjust the bidirectional print alignment. Refer to Chapter 4.; Figure 3-21 Engaging Gears 1
2. Remove the right sub frame from the right frame assembly by disconnecting CN16 from the C186 MAIN board assembly. 3. Remove the following 11 parts from the right frame assembly. 2 compression springs (200 g) 2 plain washers (8.2 x 0.5 x 15, S/Na) 2 spur gears (34.5 mm) 1 spur gear (34 mm) 1 spur ...
Page 96 - The tightening torque for the CBS screws (3; Be careful operating the release lever. Frequent operation of the; Figure 3-22 Engaging Gears 2; Figure 3-23 Engaging the Tractor Clutch Cam
Assembly Notes When you engage the release lever and release lever transmission to the tractor clutch cam, noticethe points in the following figure. The tightening torque for the CBS screws (3 × 6, F/Zn) and (3 × 8, F/Zn) 0.78 ~ 0.98 Nm (8 ~ 10 Kg - cm) The tightening torque for the hexagon nut (sta...
Page 97 - The tightening torque for the CBS screw (3; Figure 3-24 Removing the Left Frame Assembly
3.2.9.5 Removing the Left Frame Assembly 1. Remove the rear/front edge guide assembly, front cover, paper eject assembly, rear/front tractorunit, and printer cover (see Section 3.2.1). 2. Remove the panel board assembly (see Section 3.2.2), upper housing assembly (see Section 3.2.7),and then remove ...
Page 98 - Figure 3-25 Removing the Driven Pulley Holder; Figure 3-26 Removing the RD Assembly; Figure 3-27 Engaging Gears for the RD Assembly
3.2.9.6 Removing the Ribbon Drive (RD) Assembly 1. Remove the rear/front edge guide assembly, front cover, paper eject assembly, rear/front tractorunit, and printer cover (see Section 3.2.1). 2. Remove the panel board (see Section 3.2.2) and upper housing assembly (see Section 3.2.7). 3. Remove the ...
Page 99 - Figure 3-28 Disconnecting the FFCs
3.2.9.7 Removing the CR Assembly 1. Remove the rear/front edge guide assembly, front cover, paper eject assembly, rear/front tractorunit, and printer cover. 2. Remove the panel board (see Section 3.2.2) and upper housing assembly (see Section 3.2.7) . 3. Remove the printer mechanism (see Section 3.2...
Page 100 - Figure 3-31 Installing the Oil Pads in the CR Assembly; Timing Belt; Figure 3-30 Inserting the Timing Belt; Figure 3-32 Assembling the Rear CR Guide Shaft
Assembly Notes Insert the timing belt properly into the 2 holding slots at the bottom of the CR assembly. Take upthe timing belt slack between the two slots completely, as shown in the following figure. Insert the 2 oil pads into the proper positions in the CR assembly, as shown. If you remove the r...
Page 101 - Remove the rear PE sensor after disconnecting the connector.; Figure 3-33 Removing the Rear PE Sensor Assembly; Figure 3-34 Removing the Front PE Sensor Assembly
3.2.9.8 Removing the Rear PE Sensor Assembly 1 Remove the rear/front edge guide assembly, front cover, paper eject assembly, rear/front tractor unit, and printer cover. 2. Remove the panel board (see Section 3.2.2) and upper housing assembly (see Section 3.2.7). 3. Remove the printer mechanism (see ...
Page 102 - Figure 3-35 Removing the C186 Main Board Assembly
3.2.10 Removing the C186 MAIN Board Assembly 1. Remove the rear/front edge guide assembly, front cover, paper eject assembly, rear/front tractorunit, and printer cover (see Section 3.2.1) 2. Remove the panel board (see Section 3.2.2) and upper housing assembly (see Section 3.2.7). 3. Disconnect the ...
Page 103 - The tightening torque for the CBB screw (3; Figure 3-36 Removing the C166 PSB/E Board Assembly
3.2.11 Removing the C166 PSB/E Board Assembly 1. Remove the rear/front edge guide assembly, front cover, paper eject assembly, rear/front tractorunit, and printer cover. 2. Remove the panel board (see Section 3.2.2) and upper housing assembly (see Section 3.2.7). 3. Remove the 5 CBB screws (3 × 12, ...
Page 104 - Disassembly and Assembly of CSF Bin 1; Remove the 3 CPB tight (3; Figure 3-38 Releasing the Clips for the CSF Gear Cover
3.3. Disassembly and Assembly of CSF Bin 1 This section describes procedures for disassembling and assembling the optional cut sheet feeder. Ingeneral, you can install a component in the CSF simply by reversing the procedure for removing it.Therefore, this section does not describe assembly procedur...
Page 105 - Figure 3-39 Cable Alignment
Assembly Notes Be careful of the cable alignment for the CN1 connector cable and earth cables. Align thosecables as shown in the following figure. If these cables is not aligned properly, the CSF gearcover cannot be assembled properly. Use the following figure to assemble the 13 gears onto the right...
Page 106 - Disassembling Paper Support Block Assembly
3.3.2 Disassembling Paper Support Block Assembly 1. Remove the CSF gear cover. Refer to step 1 in Section 3.3.1. 2. Remove the stepping motor. Refer to steps 2 and 3 in the Section 3.3.1. 3. Remove the E-ring fixing the right edge of the paper feed shaft. 4. Remove 1 gear (29 mm) from the right edge...
Page 107 - Figure 3-44 Removing the Paper Support Block Assembly; P ap er Lo ad in g Ro ller Co ve r; Figure 3-45 Removing the Paper Loading Roller Cover Assembly
7. Remove the paper support assembly along with the paper support shaft and paper shaft holderby pulling upward. 8. Remove both paper feed rollers from both paper support assemblies. 9. Remove both paper loading roller cover assemblies by releasing the clips fixing them to thepaper support assembly....
Page 108 - Figure 3-46 Removing the Paper Eject Assembly Cover; Figure 3-47 Assembling the Paper Eject Assembly Cover
Figure 3-46 Removing the Paper Eject Assembly Cover Thin Plastic Film Figure 3-47 Assembling the Paper Eject Assembly Cover Disassembly and Assembly LQ-2070 Service Manual 3-30 Rev.A
Page 109 - Removing the Paper Eject Assembly Cover; Figure 3-48 Removing the Gear Train Cover; Figure 3-49 Engaging 5 Gears
3.3.3 Removing the Paper Eject Assembly Cover 1. Remove the paper eject assembly cover by releasing 2 clips located along both edges of the papereject assembly cover, as shown in the following figure. Assembly Note When attaching the paper eject assembly cover to the CSF unit, pay attention to the p...
Page 110 - Disassembly and Assembly of CSF Bin 2; Remove the following 5 gears and 1 spring from the right CSF frame.; Figure 3-50 Removing 1 E-ring and 2 CTBS Screws; Figure 3-51 Removing the CSF Roller Cover
3.4 Disassembly and Assembly of CSF Bin 2 3.4.1 Disassembling the Right Side Block 1. Remove the gear train cover by releasing the 4 clips shown in the following figure. 2. Remove the following 5 gears and 1 spring from the right CSF frame. Assembly Note Pay attention how the 5 gears are engaged. Re...
Page 111 - Disassembling the Paper Support Block Assembly; Remove both paper feed rollers from the paper support assemblies.
3.4.2 Disassembling the Paper Support Block Assembly 1. Remove 1 E -ring fixing the paper feed roller shaft to the right CSF frame. 2. Remove 2 CTBS (3 × 8) screws securing the paper support shaft to both right and left CSF frames. 3. Remove both paper support assemblies along with the paper feed ro...
Page 113 - ADJUSTMENT OVERVIEW
CHAPTER 4 Adjustments Table of Contents 4.1 ADJUSTMENT OVERVIEW 4-1 4.1.1 Required Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14.1.2. Required Adjustment Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 4.2 ADJUSTING...
Page 114 - ADJUSTMENT OVERVIEW; Table 4-1 Required Adjustments; means adjustment is required.; The following table shows the tools required for each adjustment.; Table 4-2 Required Adjustment Tools; the printer to the destination factory settings.; Adjustment
4.1 ADJUSTMENT OVERVIEW 4.1.1 Required Adjustments This section describes what adjustments are required after any part is removed or replaced. The followingtable shows the relationship between the repaired item and the adjustment. Table 4-1 Required Adjustments Repaired Item \ Adjustment Platen Gap ...
Page 115 - ADJUSTING AND RESETTING THE PRINTER; Move the printhead to 5th column position.; Figure 4-1 Removing the Ribbon Mask; Figure 4-2 Setting the PG Adjust Lever
4.2 ADJUSTING AND RESETTING THE PRINTER 4.2.1 Platen Gap Adjustment If you have rotated or reassembled the rear CR guide shaft or parallelism adjustment bushing, or if printing islight or dark, even at the proper PG lever position, perform this adjustment with the printer in 3 positions: the5th, 80t...
Page 117 - Bidirectional Print Alignment Adjustment; GWBASIC; Figure 4-5 Machine Select Menu
4.2.2 Bidirectional Print Alignment Adjustment This section describes the procedure for adjusting the bidirectional print alignment, required after mechanismrepair. This procedure is also necessary if you replace the main board assembly or EEPROM, because theadjusted value is written to the EEPROM o...
Page 119 - Figure 4-10 Guide Sheet for Bi-d Adjustment
4.2.2.2 Bi-d Print Alignment Adjustment from the Control Panel 1. Turn the printer on while pressing the PAUSE button to put the printer into Bi-D adjustment mode. 2. The printer prints out a guide sheet, containing 25 patterns in Draft mode. 3. Look for the pattern most closely aligned on the sheet...
Page 120 - Figure 4-11 Machine Select Menu
4.2.3 Factory Settings This section describes the procedure to reset factory settings, which is necessary if the main board orEEPROM is replaced. You can perform this procedure only with the Settings Diskette. Notes: • After you select factory settings in the Factory Setting File menu, be sure to ru...
Page 122 - TROUBLESHOOTING INFORMATION
Chapter 5 Troubleshooting Table of Contents 5.1 OVERVIEW 5-1 5.2 TROUBLESHOOTING INFORMATION 5-1 5.2.1 PRINTHEAD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15.2.2 SENSORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 123 - -1. Printhead Coil Resistance Test Points; Test; Test Method; the printhead after the printer is; Figure 5-1 Printhead Connected Pin Alignment; Troubleshooting
5.1 OVERVIEW This chapter contains flowcharts and checkpoint tables to help you troubleshoot the printer. Flowcharts letyou isolate a faulty unit based on abnormal symptoms. The checkpoint tables let you identify the faulty partor unit by checking the values or ranges listed for each component. 5.2 ...
Page 124 - Table 5-2 Sensor Test Points; Test Pin; Meter Reading
5.2.2 Sensors Table 5-2 Sensor Test Points SensorConnectorNumber Test Pin Number Test Method (Set Meter to DC Voltage. ) Meter Reading CN4 (HP Sensor) 1: HP Place one lead on pin 1 and the otherlead on pin 2, and check the voltage whileblocking the two sensor terminals. Open: +5 V (Home position) Sh...
Page 125 - Table 5-3 Motor Test Points; Error Codes with Indicators and Buzzer; Table 5-4 Indicators and Buzzer
5.2.3 Motors Table 5-3 Motor Test Points MotorConnectorNumber Common Pin Number Test Pin Number Test Method (Set Meter to Ohms. Disconnect Motor from Main Board after the Printer is Powered off.) Meter Reading CR MotorCN11 5 1, 2, 3, 4 Place one lead on pin 5 and the other lead on each of 4 test pin...
Page 126 - UNIT LEVEL TROUBLESHOOTING; Table 5-5. Symptoms and Problem Descriptions; Symptom; Paper does not feed at all.; Flowchart 3
5.3 UNIT LEVEL TROUBLESHOOTING You may be able to identify the defective unit just from the symptom displayed. The table below provides thesymptoms for a number of failures. Once you identify the problem, refer to the flowchart listed in theright-hand column of the table below to determine the cause...
Page 127 - Abnormal CR Operation; Figure 5-2 Flowchart1
1. Abnormal CR Operation S T A R T Wh e n t h e p rin t e r N O Y E S I s t h e Co n ne c t or CN 11 c onn ec t e d c orrec t ly ? N O C o nn e c t t h e C N 1 1c o rre c t l y N O Y E S C o nn e c t t h e CN 4 c or rec t l y . N O Y E S N O Y E S N O A d ju s t t h e P la t e n G a p p ro p e rlyRe...
Page 128 - Abnormal Paper Feed Operation 1; Figure 5-3 Flowchart 2
2. Abnormal Paper Feed Operation 1 S T A R T Dose the PFmotor rotate? No Is CN10 connectedcorrectly? No Connect itcorrectly. Is the problemcorrected? END YES No When the printer ispowered on, is paper ejected automatically? YES No Go to flowchart2-1. YES YES After paper is ejected, dose the printer ...
Page 130 - Abnormal Control Panel Operation; Figure 5-5 Flowchart 3
3. Abnormal Control Panel Operation S T A R T N O Y E S E N D Y E S Y E S N O N O D o s e t h e O p e r a te b u tt o n tu r n p o w er o n an d off? D o t h e c on tr o l p an el b ut t o n s fu n c t io n OK ? C h ec k th em u s i n g a m u l ti me t e r . A r e th e y O K? R e p l a c e t h e P N...
Page 131 - Figure 5-6 Flowchart 4
4. Abnormal Printing S T A R T END Is the selftest excecuted correctly ? A r e al l YES YES YES YES YES NO NO the dosts printed OK? Are any wires in the printhead broken? NO Do all the LEDs on the control panel blink at power on? Check printhead, motorsdrivers and power supplywith a meter.Replace an...
Page 132 - REPAIRING C166 PSB/PSE BOARD ASSEMBLY; OPERATE; Problem; Cause; The diode bridge DB1
5.4 REPAIRING C166 PSB/PSE BOARD ASSEMBLY This section provides instructions to repair a defective power supply board assembly. It describes varioussymptoms, likely causes, and checkpoints. Checkpoints refer to proper waveforms, resistances, and othervalues to check when evaluating the operation of ...
Page 134 - Check the voltage at pin 12 of IC51.
Table 5-6. Repairing the C166 PSB/PSE Board Assembly (Continued) Problem Cause Checkpoint Solution The 35 V and5 V lines arenot outputwhen theprinter ispowered on. Q32 is dead. Check that the resistance between thecollector and emitter is infinite. Replacethe Q32. ^ Q31 is dead. Check that the resis...
Page 135 - REPAIRING THE C186 MAIN BOARD ASSEMBLY; Table 5-7. Repairing the C186 MAIN Board Assembly; Reset IC10 is defective.
5.5 REPAIRING THE C186 MAIN BOARD ASSEMBLY This section provides instructions to repair the C186 MAIN board assembly. It describes various problems,symptoms, likely causes, and solutions. The checkpoint column provides proper waveforms, resistancevalues, and other information for each component of C...
Page 136 - IC12 or IC1 is defective.
Table 5-7. Repairing the C186 MAIN Board Assembly Problem Cause Checkpoint Solution The printerdoes notoperate at all. CRU1 is defective. Check the oscillator signal at pins 26or 27 of the CPU If the signal is notcorrect, replaceIC1 ( or replacethe main board).Otherwise,replace CRU1. Carriageoperati...
Page 138 - REPAIRING THE PRINTER MECHANISM; Table 5-8. Repairing the Printer Mechanism; When the printer is
5.6 REPAIRING THE PRINTER MECHANISM This section provides instructions for repairing the printer mechanism. It describes various problems,symptom, likely causes, checkpoints, and solutions. The checkpoint column shows items to be checked,including proper values to be set for each component of the pr...
Page 141 - is loaded
Table 5-8. Repairing the Printer Mechanism Problem Symptom Cause Checkpoint Solution Abnoraml paperfeed. Cut-sheet paper is loaded correctly, but continuous paper is not loaded at all. CN12 or CN16 isnot connectedcorrectly. Check theconnector. Referto page 3-19. Connect theCN12 or CN16correctly. ^ T...
Page 142 - PREVENTIVE MAINTENANCE
CHAPTER 6 Maintenance Table of Contents 6.1 PREVENTIVE MAINTENANCE 6-1 6.2 APPLYING LUBRICATION 6-1 List of Figures Figure 6-1. Lubrication Points 1 and 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2Figure 6-2. Lubrication Point 2 . . . . . . . . . . . . . . . . . . . . . . ...
Page 143 - PREVENTIVE MAINTENANCE; Do; APPLYING LUBRICATION; Lubrication must be applied during the reassembly process.; For lublication points, refer to the figure on the next page.; Maintenance
6.1 PREVENTIVE MAINTENANCE Preventive maintenance includes regular cleaning of the exterior case using denatured alcohol, as well asoccasional vacuuming of the mechanism interior to remove dust and paper debris. After cleaning the unit,check that it is adequately lubricated, as described in Section ...
Page 147 - Appendix; A.3 CONNECTOR SUMMARY
Appendix Table of Contents A.1. EXPANDED PRODUCTION COMMANDS A-1 A.2. EEPROM ADRESS MAP A-2 A.3 CONNECTOR SUMMARY A-5 A.4 CIRCUIT DIAGRAMS A-11 A.5 CIRCUIT BOARD COMPONENT LAYOUTS A-17 A.6 EXPLODED DIAGRAMS A-20 A.7. PARTS LIST A-26 List of Figures Figure A-1. Cable Connections . . . . . . . . . . ....
Page 149 - A.1 EXPANDED PRODUCTION COMMANDS; Write Bidirectional Adjustment Data to EEPROM
A.1 EXPANDED PRODUCTION COMMANDS 1. Write Bidirectional Adjustment Data to EEPROM • Format 1B 7C 00 06 00 00 FF 00 (in hex) dl d2 d3 • Parameters dl Print speed (0: High speed draft /Draft, 1: Draft, 2: LQ) d2 , d3 Bi-d adjustment data to be written (units = 1/720 inch) n = FFF4H (–12) 12/720 inch t...
Page 150 - A.2 EEPROM ADDRESS MAP; Address; Data; Reserved
A.2 EEPROM ADDRESS MAP Address Data Data Format Default 00H, 01H Reserved 0000H Area 1 02H, 03H Character tableselection 0: PC437 1: PC850 2: PC860 3: PC863 4: PC865 5: PC861 6: BRASCII 7: Abicomp 8: ISO Latin 1 9: Roman8, 10: PC437Greek 11: PC852 12: PC853 13: PC855 14: 857 15: PC864 16: PC866 17: ...
Page 152 - datum is fixed by each printer hardware in the factory.
Address Data Data Format Default 2BH Manual insertionwait time 3 to 30 (by 0.1 sec.), 00H: 2 sec. when Normalmode. (same as default) 3sec.when Copy mode.(same as default) 00H (2or3 sec.) 2CH 1 Tear-off wait time 3 to 30 (by 0.1 sec.) , 00H: 3 sec. (same asdefault) 00H(3 sec.) 2DH, 2EH Reserved 00H 2...
Page 153 - A.3 CONNECTOR SUMMARY; P r i n t e r M e c h a n i s m; B o ar d A s s y . , C 1 8 6 M A I N
A.3 CONNECTOR SUMMARY Figure A-1 illustrates how primary components are connected. Table A-1 summarizes functions and sizes ofthe connectors. P r i n t e r M e c h a n i s m P G S e n s o r R e l e a s e L e v e r P o s i t i o n S e n s o r P E - R e a r S e n s o r P E - F r o n t S e n s o r H P ...
Page 164 - Parts Price List Name
Table A-17 Parts No. Reference Table (Continue) Ref.No Description Parts Price List Name 641 C.B.S. Screw C.B.S Screw 642 C.F.P-Tite Screw, 2.6 X 8, F/Zn C.F.P.-Tite Screw, 2.6X8, F/Zn 643 Hexagon Nut Hexagon Nut 644 C.B.S. Screw C.B.S. Screw 650 Print Head Print Head, DH24-0A-0 LQ-2070 Service Manu...
Page 165 - EPSON
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