Epson GT-1200 Service Manual
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Epson GT-1200 Service Manual

Epson GT-1200 Service Manual

Color image scanner
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GT-1200
EPSON
EPSON
EPSON France S.A.
SERVICE MANUAL

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Summary of Contents for Epson GT-1200

  • Page 1 GT-1200 EPSON EPSON EPSON France S.A. SERVICE MANUAL...
  • Page 2 SERVICE MANUAL Color Image Scanner EPSON GT-12000 ® 4008511...
  • Page 3 The contents of this manual are subject to change without notice. n 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.
  • Page 4 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.
  • Page 5 CHAPTER 5. ADJUSTMENTS Provides Epson-approved methods for adjustment. CHAPTER 6. MAINTENANCE 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 •...
  • Page 6 REVISION STATUS Rev. Date Page(s) Contents 1997/10/20 First release...

  • Page 7: Table Of Contents

    TABLE OF CONTENTS PRODUCT DESCRIPTIONS 1.1 OVERVIEW..................................1-1 1.2 SPECIFICATION ................................1-1 1.3......................................1-4 1.3 INTERFACE SPECIFICATION ............................1-4 1.4 CONTROL CODE ................................1-5 1.5 OPERATION SPECIFICATIONS ...........................1-6 1.5.1 Switch Specification...................................1-6 1.5.2 LED Specification ....................................1-6 1.5.3 Switch Setting .....................................1-7 1.5.4 Error Indication ....................................1-7 1.5.5 Readable Area.....................................1-8 1.5.6 Transportation Screw..................................1-8 OPERATING PRINCIPLES 2.1 GENERAL DESCRIPTION ............................2-1...
  • Page 8 TROUBLESHOOTING 3.1 OVERVIEW..................................3-1 3.1.1 Error Detection by the Self-Diagnostic Function ..........................3-1 3.1.2 Troubleshooting ....................................3-2 3.1.2.1 Test Points ....................................3-2 3.1.2.2 Check Points for Abnormal Phenomenon ..........................3-2 3.1.3 Troubleshooting for Electrical Circuit ..............................3-8 3.1.3.1 Power Supply Board (B054PSH Board) ............................3-8 3.1.3.2 Control Circuit Board (B054MAIN Board)..........................3-9 DISASSEMBLY AND ASSEMBLY 4.1 OVERVIEW..................................4-1 4.1.1 Tools ........................................4-1...
  • Page 9 4.2.3.5 Glass Frame Assembly Removal and Pre-operation ......................4-11 4.2.3.6 Lamp Assembly and Inverter Board Assembly Removal ......................4-14 4.2.3.7 HP (AF) Sensor Removal................................4-16 4.2.3.8 AF Motor Assembly Removal..............................4-17 4.2.3.9 AF Motor Assembly Installation...............................4-18 4.2.3.10 Option Frame Assembly Removal............................4-19 ADJUSTMENT 5.1 OVERVIEW..................................5-1 MAINTENANCE 6.1 OVERVIEW..................................6-1 6.1.1 Cleaning.......................................6-1...

  • Page 10: Product Descriptions

    C H A P T E R PRODUCT DESCRIPTIONS...

  • Page 11: Overview

    GT-12000 Product Descriptions 1.1 OVERVIEW 1.2 SPECIFICATION The GT-12000 is an A3 size flat-bed type color image scanner. The main GENERAL features of the scanner are: Type: Flat-bed color image scanner Scanning Method: Sub-Scanning mirror movement system q High resolution Photoelectric Device: Color CCD Line sensor Optical resolution is 800 dpi.
  • Page 12 GT-12000 Product Descriptions IMAGING FUNCTIONS ELECTRICAL SPECIFICATION Gradation: Input/internal process = 12bit/pixel Power supply voltage: [120 V version] Output = 8 or 12bit/pixel Rated voltage = AC100 - 120 V (± 10%) Zoom: 50 to 200% (1% increment) [220-240 V version] Gamma Correction: CRT (A/B) Rated voltage = AC220 - 240 V (±...
  • Page 13 GT-12000 Product Descriptions ENVIRONMENTAL CONDITIONS PHYSICAL DIMENSIONS AND WEIGHT Temperature: Operating = 5 to 35°C Dimensions: 656 (W) x 458 (D) x 170 mm (H) Storage = -25 to 60°C (See Figure 1-1.) Humidity: Operating = 10 to 80% (no condensation) Weight: Approximately 20 Kg Storage =...

  • Page 14: Interface Specification

    GT-12000 Product Descriptions 1.3 INTERFACE SPECIFICATION This scanner is equipped with the following interfaces: q Bi-directional Parallel Interface n Data: 8 bit parallel n Handshake: BUSY, /ACK handshaking n Signal: TTL level n Connector: 36 pins (Amphenol) q SCSI interface n Function: Conforms to ANSI Standard X3.131-1986.

  • Page 15: Control Code

    GT-12000 Product Descriptions 1.4 CONTROL CODE Table 1-3. Control Code Summary (continued) The command level for this scanner is ESC/I-B8. The commands Category Command Name Code supported are shown in the table below. Auxiliary Set Scanning Mode ESC gi Initnialize ESC @ Set Line Counter ESC di...

  • Page 16: Operation Specifications

    GT-12000 Product Descriptions 1.5 OPERATION SPECIFICATIONS 1.5.1 Switch Specification This scanner is equipped with 4 switches. Their functions are described below: q “OPERATE “ n Turns on and off the scanner. n Pressing this switch for power-on initializes the scanner. q “RESET”...

  • Page 17: Switch Setting

    GT-12000 Product Descriptions 1.5.3 Switch Setting 1.5.4 Error Indication Among the switches equipped with this scanner, SCSI switch and the When an error has occurred, the error type is indicated by the terminator switch, which are used for SCSI interface, have the following corresponding combination of the “READY”...

  • Page 18: Readable Area

    GT-12000 Product Descriptions 1.5.5 Readable Area 1.5.6 Transportation Screw The origin point for this scanner is marked at the rear left corner of the A transportation screw is attached to the left side of the scanner viewed document table viewed from the front. See Figure 1-3 for the maximum from the front.

  • Page 19: Operating Principles

    C H A P T E R OPERATING PRINCIPLES...

  • Page 20: General Description

    (CCD Sensor) q Power supply circuit The EPSON flat-bed type scanners usually read images by moving the integral CR unit which consists of the lamp, mirror, lens/CCD sensor. This scanner, however, characteristically has the CCD sensor and the lens in Drive Wires the whole unit attached onto the mechanism as an independent unit.

  • Page 21: Mechanism Operating Principles

    GT-12000 Operating Principles 2.2 MECHANISM OPERATING PRINCIPLES Compared with other EPSON scanners, the main feature of this scanner LV1 (Variable) lies in its new optical mechanism used for reading images. Instead of the Document united lamp & CCD movement system used for other scanners, this...

  • Page 22: Electrical Circuit Operations

    GT-12000 Operating Principles 2.3 ELECTRICAL CIRCUIT OPERATIONS B 0 5 4 I S N B o a r d This section describes the electrical circuit of the GT-12000. D o c u m e n t 2.3.1 Control Circuit Operation M P X A / D C C D I C 2...
  • Page 23 GT-12000 Operating Principles B054MAIN BOARD B054SUB BOARD This is a relay board, a module is in the shield compound along with the PSB/PSE board, which connects the B054ISN in the mechanism with the Name Location Description B054PNL board. IC13 The CPU, which operates at 16 MHz, HD6413003TF controls this board.

  • Page 24: Power Supply Circuit Operation

    GT-12000 Operating Principles 2.3.2 Power Supply Circuit Operation Since the power supply circuit board B054PSH for this scanner meets the universal specification, it can use the rated voltage in the range from 100V Positive to 240V. Component The electrical circuit for the AC input part is designed on the basis of 200V line.

  • Page 25: Troubleshooting

    C H A P T E R TROUBLESHOOTING...

  • Page 26: Overview

    GT-12000 Troubleshooting 3.1 OVERVIEW Fatal Error LED Status Cause Operation/Condition This chapter describes the troubleshooting which enables you to solve the · The lamp goes off <Defect in the hardware> problem efficiently when the scanner is operating abnormally. The · The lamp does not light. and the scanner remedies for the errors detected by the self-diagnostic function and the READY...

  • Page 27: Troubleshooting

    GT-12000 Troubleshooting 3.1.2 Troubleshooting 3.1.2.2 Check Points for Abnormal Phenomenon See the table below which shows the abnormal phenomenon typically This section provides test points for each major unit and check points for occurs. each abnormal phenomenon. Table 3-1. Abnormal Phenomenon 3.1.2.1 Test Points Test points for the motors and sensors are shown in the tables below.
  • Page 28 GT-12000 Troubleshooting Flowchart 3-1 Phenomenon: “Operate” LED does not light. Start Are the Check the following motors for CN1 on the B054SUB the correct resistance: Connect them properly. board and the shield - Motor (for mirror) : 15.0 Ω compartment connected - Motor (for focus) : 15.5 Ω...
  • Page 29 GT-12000 Troubleshooting Flowchart 3-2 Phenomenon: CR (Mirror/Lamp) does not move. Start Check the following motors for Is the transportation the correct resistance: Unlock the screw. screw set to the locking - Motor (for mirror) : 15.0 W position? - Motor (for focus) : 15.5 W Turn th scanner off and move the CR manually to check if it moves smoothly.
  • Page 30 GT-12000 Troubleshooting Flowchart 3-3 Flowchart 3-4 Phenomenon: CR moves abnormally. (Crashing into the frame) Phenomenon: Lamp does not light. Start Start Replace the lamp on the CR. Set the screw to Is the transportation the unlocking screw set to the locking position.
  • Page 31 GT-12000 Troubleshooting Flowchart 3-5 Flowchart 3-6 Phenomenon: “Communication Error” (Bi-directional I/F) ” (Bi-directional I/F) is indicated. Phenomenon: “Communication Error” (SCSI) ” (SCSI) is indicated. ” (Bi-directional I/F) ” (Bi-directional I/F) ” (SCSI) ” (SCSI) Start Start Check the SCSI for the following Replace the interface cable.
  • Page 32 GT-12000 Troubleshooting Flowchart 3-7 Phenomenon: Scanned image is abnormal. Start Is the glass free of stain Clean the and foreign matter? glass. Clean the Is the mirror free of stain mirror. and foreign matter? Wipe the mirror with a dry, clean cloth only. Replace the B054MAIN board and perform a test scanning.

  • Page 33: Troubleshooting For Electrical Circuit

    GT-12000 Troubleshooting 3.1.3 Troubleshooting for Electrical Circuit This section describes the abnormal phenomenon and corresponding check points for each electrical circuit board. 3.1.3.1 Power Supply Board (B054PSH Board) Phenomenon Check Points <Abnormal voltage> Check IC51 (TL494): · Signal waveform output from +5VDC is not output.

  • Page 34: Control Circuit Board (B054Main Board)

    GT-12000 Troubleshooting 3.1.3.2 Control Circuit Board (B054MAIN Board) Phenomenon Check Points <No operation at all> Check the reset IC (IC2) for the signal waveforms output from the following pins: Reset IC is defective. · Pin 7 (for +5V input) · Pin 6 (for PWRES output) <No operation at all>...
  • Page 35 GT-12000 Troubleshooting Phenomenon Check Points <”Fatal Error”> Check the Driver IC (IC3/4: · Phase drive signal waveform Motor (for mirror) driver circuit is defective. output from Pin 8/6 <”Fatal Error”> Check the driver IC (IC5/6): · Phase drive signal waveform Motor (for focus) driver circuit is defective.

  • Page 36: Disassembly And Assembly

    C H A P T E R DISASSEMBLY AND ASSEMBLY...

  • Page 37: Overview

    Gold Table 4-1 .Tool List (Thread part: M3x3) Description Availability SE Part No. CP M3x6 Silver Exclusive adjusting tools EPSON exclusive Code: 1039140 (Leveling tools) ¡ Phillips screw driver (No.2) – Screw lock screw Silver ¡ Standard screw driver (No.1) –...

  • Page 38: Disassembly Procedures

    GT-12000 Disassembly and Assembly 4.2 DISASSEMBLY PROCEDURES Start This section describes disassembling and removing procedures for each major unit of the scanner. Electrical Circuit EPROM Replacement Remova (Section 4.2.1.1) See the flowchart in Figure 4-1. The jobs in the yellow boxes involve using (Section 4.2.1) the adjustment tools exclusively designed for this scanner.

  • Page 39: Electrical Circuit Removal

    GT-12000 Disassembly and Assembly 4.2.1 Electrical Circuit Removal The major electrical circuit boards (B054MAIN and B054PSH) of this scanner are all stored in one independent shield compartment. Therefore, they can be removed in one unit (board unit) from the scanner with ease. 1.

  • Page 40: Main/B054Psh Board Removal

    GT-12000 Disassembly and Assembly 4.2.1.2 MAIN/B054PSH Board Removal Connector (CN5) Connector (CN9) B054MAIN and B054PSH boards stored in the shield compartment are removed in the following procedure: 1. Remove the shield compartment. (See Section 4.2.1.) 2. Remove 12 screws (No.3) securing the top shield of the board unit, then remove the top shield.

  • Page 41: Scanner Body Disassembly

    GT-12000 Disassembly and Assembly 4.2.2 Scanner Body Disassembly U s i n g t h e t w e e z e r s , r e m o v e t h e c a p b y l i f t i n g i t u p w h i l e p u s h i n g i t t o w a r d This section describes procedures for disassembling the major units of the t h e o t h e r s i d e o f t h e c u t o u t .

  • Page 42: Scanner Mechanism Removal

    GT-12000 Disassembly and Assembly 4.2.2.2 Scanner Mechanism Removal The scanner mechanism can be removed from the lower housing in the Screws (No.1) following procedure: 1. Remove the upper housing. (See Section 4.2.2.1.) 2. Remove 4 screws (No.1) securing the scanner mechanism to the lower housing at the bottom.

  • Page 43: Scanner Mechanism Disassembly

    GT-12000 Disassembly and Assembly 4.2.3 Scanner Mechanism Disassembly The rest part of the chapter describes the procedures for removing the major parts/units in the scanner mechanism. CAUTION Note that producing this scanner requires rather precise assembly and adjustment to ensure Panel Board Assembly accurate control system.

  • Page 44: Sub Board Assembly Removal

    GT-12000 Disassembly and Assembly 4.2.3.2 Sub Board Assembly Removal 1. Remove the scanner mechanism. (See Section 4.2.2.2.) 2. Turn the mechanism over and place it on a flat surface. 3. Disconnect all connector cables from the sub board assembly (B054SUB board). 4.

  • Page 45: Hp Sensor (Cr) Removal

    GT-12000 Disassembly and Assembly 4.2.3.3 HP Sensor (CR) Removal This section describes procedure for removing the HP sensor which detects the reference position for the carriage mirror assembly. Motor (CR) HP Sensor (CR) Panel Board Assembly 1. Remove the scanner mechanism. (See Section 4.2.2.2.) 2.

  • Page 46: Cr Motor Assembly Removal

    GT-12000 Disassembly and Assembly 4.2.3.4 CR Motor Assembly Removal This section describes procedure for removing the motor unit which drives the carriage mechanism (mirror/lamp). Bottom of the Scanner Facing Upward 1. Remove the scanner mechanism. (See Section 4.2.2.2.) 2. Turn the mechanism over and place it on a flat surface. 3.

  • Page 47: Glass Frame Assembly Removal And Pre-Operation

    GT-12000 Disassembly and Assembly 4.2.3.5 Glass Frame Assembly Removal and Pre-operation Since the glass frame assembly is one of the reinforcing parts of the mechanism, whole mechanism may be deformed if it is removed. Be sure T u r n i n g T a b l e to follow the instruction provided in this section during any service which ( w i t h 4 d e v i s i o n s ) involves removing the glass frame assembly.
  • Page 48 GT-12000 Disassembly and Assembly 3. Remove 9 screws and remove the glass frame assembly. The screws to be removed and their locations are as follows: Glass Fixing Plate · No.4: 5 screws securing the glass frame assembly by the right (Color : Silve) and left sides.
  • Page 49 GT-12000 Disassembly and Assembly 4.2.3.5.1 Glass Frame Assembly Installation P o s i t i o n i n g B u s h After the glass frame assembly has been removed for any purpose, it G l a s s e d g e ( C o l o r : S i l v e r ) must be reinstalled in the following procedure.

  • Page 50: Lamp Assembly And Inverter Board Assembly Removal

    GT-12000 Disassembly and Assembly 4.2.3.6 Lamp Assembly and Inverter Board Assembly Removal This section describes how to remove the lamp assembly and the inverter Screws (No.6) board assembly from the carriage. 1. Remove the glass frame assembly. (See Section 4.2.3.5.) 2.
  • Page 51 GT-12000 Disassembly and Assembly 4. Disconnect the connector cable for the lamp from the connector CN2 Lift up to remove. on the inverter board assembly. Then remove the lamp from the carriage. 5. Disconnect the cable (black) from the connector CN1 on the inverter board assembly.

  • Page 52: Hp (Af) Sensor Removal

    GT-12000 Disassembly and Assembly 4.2.3.7 HP (AF) Sensor Removal This section describes the procedure for removing the HP sensor which detects the reference position for the AF drive mechanism (lens/CCD sensor unit). Rotate this pulley manually. 1. Remove the glass frame assembly. (See Section 4.2.3.5.) 2.

  • Page 53: Af Motor Assembly Removal

    GT-12000 Disassembly and Assembly 4.2.3.8 AF Motor Assembly Removal Screws (No.4) This section describes how to remove the motor which drives AF drive mechanism. 1. Remove the glass frame assembly. (See Section 4.2.3.5.) 2. Remove 4 screws (No.3) and remove the cover which covers the AF drive mechanism.

  • Page 54: Af Motor Assembly Installation

    GT-12000 Disassembly and Assembly 4.2.3.9 AF Motor Assembly Installation ü ü ü ü When installing the tension plate assembly, make CHECK POINT Follow the steps below when installing the AF motor assembly to the sure that the location bump is not covered with the scanner body.

  • Page 55: Adjustment

    C H A P T E R ADJUSTMENT...

  • Page 56: Overview

    GT-12000 Adjustment 5.1 OVERVIEW This scanner requires no adjustment for any service such as disassembling and assembling the scanner including part replacement is provided within the specification in Chapter 4 “Disassemble and Assembly”. Rev. A...
  • Page 57 C H A P T E R MAINTENANCE...

  • Page 58: Overview

    GT-12000 Maintenance 6.1.2 Lubrication 6.1 OVERVIEW This scanner needs no lubrication at the level of service specified in the This chapter provides information necessary to keep the scanner function service manual. in optimum condition constantly and to prevent troubles. 6.1.1 Cleaning Perform cleaning when stain is noticeable.

  • Page 59: Appendix

    C H A P T E R APPENDIX...

  • Page 60: Overview

    GT-12000 Appendix 7.1.2 Connector Summary 7.1 OVERVIEW Connectors used on the electrical circuit boards are summarized in the This chapter provides information necessary for servicing. table below. 7.1.1 Connector Pin Assignment Table 7-1. Connector Summary Board Function Ref. B054MAIN CN1/3 For connection with SCSI I/F GT-9500 For connection with Bi-directional I/F GT-9500...
  • Page 61 GT-12000 Appendix B054MAIN – CN4 Signal Name Function Signal Name Function Power supply (+5V) +12V Power supply (+12V) ADD1 Address (1) ADD2 Address (2) STLN Start line signal for ADC ADD0 Address (0) CSAP Chip select ADC AD clock Sample hold signal for ADC WR signal for ADC Shutter (Blue) for CCD Clamp signal for ADC...
  • Page 62 GT-12000 Appendix B054MAIN – CN5 B054MAIN – CN6 Signal Name Function Signal Name Function +24V Power supply (for motor drive, lamp) TPU (HOME) / Select +24V Power supply (for motor drive, lamp) TPU (COVER) / Select +24V Power supply (for motor drive, lamp) Not used.
  • Page 63 GT-12000 Appendix B054SUB – CN2 B054SUB – CN3 Signal Name Function Signal Name Function Power supply (+12V) Power supply (+24V) Power supply (+24V) Power supply (+5V) Power supply (+24V) Power supply (+24V) Power supply (+5V) LAMP Lamp signal +12V Power supply (+12V) Address (2) Address (1) Address (0)
  • Page 64 GT-12000 Appendix B054SUB – CN6 Signal Name Function HMM(S) Home sensor (Mirror) (Signal) HMM(P) Home sensor (Mirror) (Power supply) B054SUB – CN7 Signal Name Function Motor (Mirror) (Phase B drive signal) Motor (Mirror) (Phase A drive signal) MMBX Motor (Mirror) (Phase /B drive signal) MMAX Motor (Mirror) (Phase /A drive signal) Rev.

  • Page 65: Component Layout

    GT-12000 Appendix 7.2 COMPONENT LAYOUT Figure 7-2. Component Layout - B054MAIN Board Rev. A...
  • Page 66 GT-12000 Appendix Figure 7-3. Component Layout - B054PSH Board Rev. A...

  • Page 67: Circuit Diagrams

    GT-12000 Appendix 7.3 CIRCUIT DIAGRAMS Figure 7-4. B054MAIN Board Circuit Diagram Rev. A...
  • Page 68 GT-12000 Appendix Figure 7-5. B054PSH Board Circuit Diagram Rev. A...

  • Page 69: Exploded Diagrams

    GT-12000 Appendix 7.4 EXPLODED DIAGRAMS Figure 7-6. Exploded Diagrams (1) 7-10 Rev. A...
  • Page 70 GT-12000 Appendix Figure 7-7. Exploded Diagrams (2) 7-11 Rev. A...
  • Page 71 SERVICE MANUAL ADF (Auto Document Feeder) ® 4008512...
  • Page 72 The contents of this manual are subject to change without notice. n 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.
  • Page 73 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.
  • Page 74 CHAPTER 5. ADJUSTMENTS Provides Epson-approved methods for adjustment. CHAPTER 6. MAINTENANCE 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 •...
  • Page 75 REVISION STATUS Rev. Date Page(s) Contents 1997/10/20 First release...
  • Page 76 TABLE OF CONTENTS PRODUCT DESCRIPTIONS 1.1 FEATURES..................................1-1 1.2 PRODUCT DESCRIPTION ............................1-1 OPERATING PRINCIPLES 2.1 OVERVIEW..................................2-1 2.1.1 ADF Mechanism ....................................2-1 2.1.2 Electrical Circuit ....................................2-12 2.1.2.1 Transmission Circuit................................2-12 2.1.2.2 Paper Size Detection Circuit ..............................2-13 2.1.2.3 Document Sensor (Empty Sensor) Circuit..........................2-13 2.1.2.4 Paper Feeding Motor Encoder Sensor Circuit.........................2-14 2.1.2.5 Registration Sensor Circuit..............................2-14 2.1.2.6 Sensor Circuits ..................................2-15 2.1.2.7 Switch Circuits..................................2-16...
  • Page 77 TROUBLESHOOTING 3.1 OVERVIEW..................................3-1 3.1.1 Test Mode Overview ...................................3-1 3.1.1.1 Single Feeding Test Mode ................................3-2 3.1.1.2 Reverse Feeding Test Mode ..............................3-2 3.1.1.3 Single Feeding Without Paper Aging Test Mode ........................3-3 3.1.1.4 Reverse Feeding Without Paper Aging Test Mode ........................3-3 3.1.1.5 Motor Line Output Test Mode..............................3-4 3.1.1.6 Solenoid Line Output Test Mode...............................3-4 3.1.2 Motor/Solenoid Internal Coil Resistance ............................3-5 3.1.2.1 Transportation Motor Check Points............................3-5...
  • Page 78 4.2.7 Paper Feed Motor Unit Removal................................4-8 4.2.8 Registration/Timing Sensor Removal ...............................4-9 4.2.9 Paper Eject/Reverse Motor Unit Removal............................4-10 4.2.10 Paper Eject Sensor Removal .................................4-11 ADJUSTMENT 5.1 OVERVIEW..................................5-1 5.1.1 Adjustment Tools....................................5-1 5.1.2 Mechanical Adjustment..................................5-1 5.1.2.1 Flapper Solenoid Installation Position Adjustment ........................5-2 5.1.2.2 Separation Plate Gap Adjustment .............................5-3 5.1.2.3 Belt Tension Adjustment ................................5-4 5.1.2.4 Magnet Catch Installation Position Adjustment .........................5-4 5.1.2.5 Micro Switch Installation Position Adjustment ...........................5-5...
  • Page 79 MAINTENANCE 6.1 OVERVIEW..................................6-1 6.1.1 Cleaning.......................................6-1 6.1.1.1 Cleaning Points ..................................6-2 6.1.2 Lubrication ......................................6-7 6.1.3 Adhesion ......................................6-15 APPENDIX 7.1 CONNECTOR TABLE ..............................7-1 7.2 EXPLODED DIAGRAMS ...............................7-3...

  • Page 80: Product Descriptions

    C H A P T E R PRODUCT DESCRIPTIONS...

  • Page 81: Features

    Product Description 1.1 FEATURES 1.2 PRODUCT DESCRIPTION This auto document feeder (ADF) is the exclusive ADF for GT-12000, and BASIC SPECIFICATION its main features are as follows: Type: Page transportation & duplex scanning type q Supports large document up to A3 size Document transportation: - Document center aligning - Fed faced-up from the bottom...
  • Page 82 Product Description 0 - +2 mm Accuracy in top position: Single feed: 0 - +2 mm Duplex feed: DOCUMENT SUPPORTED Document size: [Portrait] A3, LD, B4, LG, A4, LT, B5, A5, Center alignment: Single feed: +1.5 mm 140X148 mm / 5.5 x 5.8 inch Duplex feed: +3 mm [Landscape] A4, LT, B5, A5...
  • Page 83 Product Description ELECTRICAL SPECIFICATION RELIABILITY Power supply: Supplied through the scanner Paper feeding life: 100,000 sheets - DC24V ± 10% Paper ejecting life: 100,000 sheets - DC5V ± 10% Hinge: 100,00 close motions or more Consumption current: DC24V = 2.0A SAFETY, EMC DC5V = 0.3A...
  • Page 84 Product Description APPEARANCE Weight: 16Kg or less Dimensions (W x D x H): 601 x 529 x 122 mm / 23.6 x 20.8 x 4.8 inch (with the extension tray stored.) 6 0 1 m m / 2 3 . 6 i n c h 1 4 7 m m 5 .

  • Page 85: Operating Principles

    C H A P T E R OPERATING PRINCIPLES...

  • Page 86: Overview

    S e p a r a t i o n R o l l e r P a p e r F e e d T r a y can be used with the EPSON scanner GT-12000. The contents of this D o c u m e n t W e i g h t...
  • Page 87 Operating Principles SINGLE FEEDING In single feeding mode, the ADF loads document from the paper feed tray and transports it to the scanning position, then ejects it immediately after scanning. Therefore, document must be always transported in single direction to let the ADF repeat feeding/ejecting operation cycle. Setting document Document is set in the paper feed tray.
  • Page 88 Operating Principles The document is transported until the rear edge passed the document stopper, then the transportation motor stops rotating. The transportation motor rotates backward to move the document back until it bumps against the paper stopper, and the motor stops. 10 mm With the document aligned with the stopper, paper skew is corrected and the document is ready to be scanned.
  • Page 89 Operating Principles After scanned, the scanned document is ejected according to the single feed command from the scanner and the pre-fed document is transported to the scanning position. 10. After the document is fed by the forward rotation of the transportation motor and the paper eject/reverse motor, the paper feed motor rotates backward to transport the document onto the platen glass and Figure 2-10.
  • Page 90 Operating Principles 13. While scanning, the document is ejected to the output tray. Rotational speed of the paper eject/reverse motor is reduced when the paper eject/reverse sensor is near off condition to output the document to the output tray slowly. 14.
  • Page 91 Operating Principles REVERSE FEEDING In the reverse feeding mode, document is fed in the following order: The document is fed. ® The document is reversed. ® ® The document is reversed again. ® Image is scanned Image on the reversed side is scanned. Setting a document Document is set in the paper feeding tray.
  • Page 92 Operating Principles When the paper eject/reverse sensor comes on, the transportation motor stops and then the paper eject/reverse motor stops to hold the document in the paper eject/reverse mechanism. The transportation motor rotates backward and then the paper eject/reverse motor rotates forward to transport the document from the paper eject/reverse mechanism to the scanning position on the platen glass.
  • Page 93 Operating Principles According to the reverse feeding command, the transportation motor and the paper eject/reverse motor rotate forward to transport the scanned document to the paper eject/reverse mechanism and the flapper solenoid comes on to switch the paper path to the paper eject/reverse mechanism side.
  • Page 94 Operating Principles 13. The transportation motor rotates forward and then the paper feed motor rotates backward to transport the pre-fed document to the platen glass. The document size is measured when the registration sensor goes off, and the paper feed motor stops when the timing sensor goes off.
  • Page 95 Operating Principles 17. The transportation motor rotates backward and then the paper eject/reverse motor rotates forward to transport the document from the paper eject/reverse mechanism to the scanning position. The paper eject/reverse motor stops when the paper eject/reverse sensor goes off and the transportation motor stops when the document bumps against the paper stopper.
  • Page 96 Operating Principles 21. According to the ejection command from the scanner, the scanner starts ejecting the scanned document. The transportation motor and the paper eject/reverse motor rotate forward to eject the scanned document. 22. When the paper eject/reverse sensor is near off condition, rotational speed of the paper eject/reverse motor is reduced to eject the document slowly to the output tray.

  • Page 97: Electrical Circuit

    Operating Principles 2.1.2 Electrical Circuit This ADF (R-4C1070).is equipped with only one control board. This section describes the functions of the board. IC12 IC11 2.1.2.1 Transmission Circuit *TXD *RI1 The transmission circuit manages parallel and serial signal transmission between the ADF and the scanner. The protocol used between them is 4.7K *RXD original.

  • Page 98: Paper Size Detection Circuit

    Operating Principles 2.1.2.2 Paper Size Detection Circuit 2.1.2.3 Document Sensor (Empty Sensor) Circuit The edge guides in the paper feed tray of this ADF are used to detect the A photo-interrupter sensor located at the bottom of the paper feed tray is paper size.

  • Page 99: Paper Feeding Motor Encoder Sensor Circuit

    Operating Principles 2.1.2.4 Paper Feeding Motor Encoder Sensor Circuit 2.1.2.5 Registration Sensor Circuit The paper feeding motor is used to manage the following operations: The registration sensor with an LED and the photo transistor built in has an mirror attached across the paper path. Since the registration sensor is q Registration operation a reflex type sensor, it detects paper empty condition by emitting infrared q Drives the transportation motor after the timing sensor goes off.

  • Page 100: Sensor Circuits

    Operating Principles 2.1.2.6 Sensor Circuits The timing sensor and the paper eject/reverse sensor are reflex type sensors, and each of them has an LED and photo-transistor built in it. Each sensor emits infrared light from the LED toward the mirror attached across from the sensor and detects paper empty condition when it TP13 IC12...

  • Page 101: Switch Circuits

    Operating Principles 2.1.2.7 Switch Circuits 2.1.2.8 Reset Circuit Each of the ADF, feeding cover and ejection cover is equipped with a This circuit produces reset signals sent to the CPU and the gate array. IC8 open/close sensor to detect status such as operation stop and error has the following 2 functions: occurrence.

  • Page 102: Paper Feed Motor Driver Circuit

    Operating Principles 2.1.2.9 Paper Feed Motor Driver Circuit This ADF is equipped with 3 motors, and a DC motor is used for the paper feed motor only. The paper feed motor has a slit plate which detects conditions such as amount and directions of motor rotation and stop control status.

  • Page 103: Transportation/Paper Eject/Reverse Motor Driver Circuits

    Operating Principles 2.1.2.10 Transportation/Paper Eject/Reverse Motor Driver [Transportation Motor Driver Circuit] Circuits 10uF Stepping motors are used for the transportation motor and the paper IC12 eject/reverse motor. Each motor circuit controls constant current for the motor phase as well as direction for rotating and motor stopping . Phase excitation signals are input to Pins 13 - 16 of the IC7.

  • Page 104: Feeding Solenoid/Reverse Solenoid Sensor Circuits

    Operating Principles 2.1.2.11 Feeding Solenoid/Reverse Solenoid Sensor Circuits 2.1.2.12 Rush Current Limitation Circuit This ADF is equipped with 2 solenoids; one is a feeding solenoid used for The rush current limitation circuit consists of the limitation resistance and opening and closing the paper feed shutter, and the other is a flapper the FET which regulates the current level.

  • Page 105: Eeprom Transmission/Write Circuit

    Operating Principles 2.1.2.13 EEPROM Transmission/Write Circuit Following values can be written into the EEPROM of this ADF: q Reference value for the empty sensor sensitivity q Reference value for the registration sensor sensitivity q Reference value for the paper eject/reverse sensor sensitivity q Total amount of fed document To rewrite sensitivity values for the sensors listed above or initialize the EEPROM, run the automatic adjustment program built in the ROM.

  • Page 106: Troubleshooting

    C H A P T E R TROUBLESHOOTING...

  • Page 107: Overview

    Troubleshooting 3.1 OVERVIEW Table 3-1. Test Modes and Test Methods This chapter describes the troubleshooting required when this ADF Test Mode Test Method functions abnormally. Generally, defective part can be found easily by Feed the paper in the single feeding Single feeding mode running various test modes as long as the ADF is in operation.

  • Page 108: Single Feeding Test Mode

    Troubleshooting 3.1.1.1 Single Feeding Test Mode 3.1.1.2 Reverse Feeding Test Mode With this test mode, you can detect the defective part by setting the With this test mode, you can detect the defective part by setting the document (including a blank paper) and performing the single feeding. document (including a blank sheet) and performing the reverse feeding.

  • Page 109: Single Feeding Without Paper Aging Test Mode

    Troubleshooting 3.1.1.3 Single Feeding Without Paper Aging Test Mode 3.1.1.4 Reverse Feeding Without Paper Aging Test Mode With this test mode, you can detect the defective part by putting the ADF With this test mode, you can detect the defective part by putting the ADF in the single feeding aging mode without setting any document.

  • Page 110: Motor Line Output Test Mode

    Troubleshooting 3.1.1.5 Motor Line Output Test Mode 3.1.1.6 Solenoid Line Output Test Mode With this test mode, you can detect the defective part by driving 3 motors With this test mode, you can activate 2 solenoids to check for the correct consecutively.

  • Page 111: Motor/Solenoid Internal Coil Resistance

    Troubleshooting 3.1.2 Motor/Solenoid Internal Coil Resistance This section provides the check points for the motors which are found defective through the test modes described in Section 3.1.1. R e d G r e e n ü ü ü ü n n n n Since a DC motor is used for the paper CHECK POINT feeding motor, check continuity for 2 lines in A c o m...

  • Page 112: Paper Eject/Reverse Motor Check Point

    Troubleshooting 3.1.2.2 Paper Eject/Reverse Motor Check Point 3.1.2.4 Paper Size Sensor A 4-phase stepping motor is also used for the paper eject/reverse motor, Size of the document set in the ADF paper tray is detected by aligning the 2.6W ± edge guide with the document.

  • Page 113: Disassembly And Assembly

    C H A P T E R DISASSEMBLY AND ASSEMBLY...

  • Page 114: Overview

    Disassembly and Assembly 4.1.2 Screws 4.1 OVERVIEW Types of screws used for the ADF are listed in the table below. Make sure This chapter describes how to dissemble the auto document feeder (ADF). that you use the specified type and number of screws for each part. If no instruction is given, assembly can be carried out by reversing the disassembly procedures.

  • Page 115: Disassembly Procedure

    Disassembly and Assembly 4.2 DISASSEMBLY PROCEDURE Disassembly/Removal procedures for the major units in the ADF are described in the following sections. Paper Feed Tray (Reverse Side) 4.2.1 Paper Feed Tray Removal Disconnect this connector. (For paper size sensor) 1. Remove the ADF unit from the scanner body. 2.

  • Page 116: Control Board Unit Removal

    Disassembly and Assembly 4.2.2 Control Board Unit Removal ü ü ü ü When installing the control board unit, make CHECK POINT 1. Turn the ADF over and remove 3 screws, then remove the shield cover. sure that the bottom edge of the board properly 2.

  • Page 117: Transportation Belt Unit Removal

    Disassembly and Assembly 4.2.3 Transportation Belt Unit Removal 1. Turn the ADF over. <Screw (right) fixing position> 2. Fold 2 areas of the belt (indicated areas in Figure 4-5.) inside. 3. Remove 2 right and left transportation belt unit fixing screws indicated in Figure 4-6, then hold the top edge of the belt and pull it forward and remove the whole belt unit by pulling it upward.

  • Page 118: Paper Feed Unit Removal

    Disassembly and Assembly 4.2.4 Paper Feed Unit Removal Screw (Located inside the paper feed unit access cover.) 1. Turn the ADF over. 2. Remove 4 screws securing the paper feed unit and 1 screw securing the GND line. 3. Open the access cover located on the paper feed unit side and remove 1 fixing screw indicated in Figure 4-8.

  • Page 119: Paper Eject/Reverse Unit Removal

    Disassembly and Assembly 4.2.5 Paper Eject/Reverse Unit Removal Screws 1. Turn the ADF over. 2. Remove 4 screws securing the paper eject/reverse unit and 1 screw securing the GND line. 3. Disconnect 2 cables which connect the paper eject/reverse unit to the Paper Eject/Reverse Unit connectors on the control board unit.

  • Page 120: Transportation Belt Drive Motor Removal

    Disassembly and Assembly 4.2.6 Transportation Belt Drive Motor Removal 1. Remove the transportation belt unit. (See Section 4.2.3.) 2. Remove the shield cover. (See Section 4.2.2.) 3. Disengage the belt from the motor pinion gear. 4. Disconnect the cable from the motor, then unhook the tension spring from the tension roller holder plate.

  • Page 121: Paper Feed Motor Unit Removal

    Disassembly and Assembly Screw 4.2.7 Paper Feed Motor Unit Removal This section describes the procedure for removing the paper feed motor in the paper feed unit. 1. Remove the paper feed unit. (See Section 4.2.4.) 2. Loosen the screw and remove the harness cover. 3.

  • Page 122: Registration/Timing Sensor Removal

    Disassembly and Assembly 4.2.8 Registration/Timing Sensor Removal This section describes how to remove the registration sensor and timing Screws sensor in the paper feed unit. 1. Remove the paper feed unit. (See Section 4.2.4.) 2. Remove the paper guide. The fixing screws to be removed are: ·...

  • Page 123: Paper Eject/Reverse Motor Unit Removal

    Disassembly and Assembly 4.2.9 Paper Eject/Reverse Motor Unit Removal Screw This section describes how to remove the paper eject/reverse motor unit from the paper eject/reverse unit. 1. Remove the paper eject/reverse motor unit. (See Section 4.2.5.) 2. Remove 3 screws and remove the paper eject/reverse motor unit. Screw Figure 4-16.

  • Page 124: Paper Eject Sensor Removal

    Disassembly and Assembly 4.2.10 Paper Eject Sensor Removal This section describes how to remove the paper eject sensor in the paper eject/reverse unit. 1. Remove the paper eject/reverse unit. (See Section 4.2.5.) Screws Shoulder Screws 2. Remove 2 screws at the bottom of the paper eject/reverse unit and remove the paper eject guide.

  • Page 125: Adjustment

    C H A P T E R ADJUSTMENT...

  • Page 126: Overview

    Adjustment 5.1.2 Mechanical Adjustment 5.1 OVERVIEW This section describes the mechanical adjustment for the ADF. The table This chapter describes adjustments required after disassembling and below lists the adjustment items and the corresponding occasions. assembling the ADF or replacing specified parts. Adjustment items of this ADF fall in 2 categories: mechanical adjustment and electrical adjustment.

  • Page 127: Flapper Solenoid Installation Position Adjustment

    Adjustment 5.1.2.1 Flapper Solenoid Installation Position Adjustment F l a p p e r R u b b e r This adjustment is made to fix the flapper solenoid at the position where F l a p p e r proper operation of the flapper is ensured.

  • Page 128: Separation Plate Gap Adjustment

    Adjustment 5.1.2.2 Separation Plate Gap Adjustment F i x i n g S c r e w s To feed paper one by one from the paper feed tray into ADF in order, the gap between the paper separation plate and paper feed roller must be properly set.

  • Page 129: Belt Tension Adjustment

    Adjustment 5.1.2.3 Belt Tension Adjustment 5.1.2.4 Magnet Catch Installation Position Adjustment This adjustment is made to adjust tension of the timing belt used to This adjustment is made to install the magnet catch securely to a proper transmit drive sent from the transportation motor to the transportation belt position after removing or replacing the magnet catch.

  • Page 130: Micro Switch Installation Position Adjustment

    Adjustment 5.1.2.5 Micro Switch Installation Position Adjustment This adjustment is made to adjust the micro switch installation position. With this adjustment, open/close condition of the ADF is correctly Micro Switch detected. At the factory level, the micro switch comes on when the gap between the front edge of the ADF and the document glass of the scanner is 70 mm - 80 mm.

  • Page 131: Skew Correction Adjustment

    Adjustment 5.1.2.6 Skew Correction Adjustment You must make this adjustment when the output image appears skewed A D F F i x i n g S c r e w on the PC monitor or ADF is removed from the ADF rear case. To make the adjustment, use the scale on the right hinge base which supports the ADF with the left hinge base.

  • Page 132: Electrical Adjustment

    Adjustment 5.1.3 Electrical Adjustment This section describes the electrical adjustment for ADF. It consists of 3 adjustment items which must be made after specified actions are taken, as shown in Table 5-3. Table 5-3. Electrical Adjustment Adjustment Item Actions taken ·...
  • Page 133 Adjustment 5.1.3.1 Sensor Adjustment Open and then close either the paper eject cover or the paper feed This ADF is internally equipped with the following 3 photo-interrupter cover. (The sensor adjustment mode is set with this motion.) sensors; empty sensor, registration sensor, and reverse sensor. Press the push button directly attached to the control board, and the Since these sensors function by transmitting infrared ray, paper debris automatic sensor adjustment program starts running to make...

  • Page 134: Eeprom Initialize And Sensor Adjustment

    Adjustment 5.1.3.2 EEPROM Initialize and Sensor Adjustment 5.1.3.3 Scan Stop Position Adjustment This adjustment must be made after the control board unit is replaced. This adjustment must be made to adjust the scanning position after the The EEPROM on the control board stores values for sensor sensitivity and document is transported into the ADF.

  • Page 135: Maintenance

    C H A P T E R MAINTENANCE...

  • Page 136: Overview

    Note: Remove the cover before cleaning the timing sensor and the paper (Refer to Section 6.1.1.) eject/reverse sensor, Table 6-1. Lubricants and Adhesives Name Availability Part code Grease (EM-50L) EPSON-Exclusive TBD Lock-tight (#2) EPSON-Exclusive B730200200 Rev. A...

  • Page 137: Cleaning Points

    Maintenance 6.1.1.1 Cleaning Points Paper Feed Roller, Separation Roller, Registration Roller and Pickup Roller Registration Sensor The pickup roller, a half-moon-shape roller with a toothed side on it, is Open the paper feed cover and clean the PF roller, separation roller, located in the bottom part of the paper feed tray.
  • Page 138 Maintenance Transportation Belt Reverse Roller With the ADF fully open, clean the belt by turning it manually. 2 reverse rollers are located under the paper eject cover. Clean the rollers by turning them manually. Transportation Belt Reverse Roller Figure 6-3. Transportation Belt Cleaning Figure 6-4.
  • Page 139 Maintenance Paper Eject Roller 2 paper eject rollers are located near the slot where document is ejected. Clean the rollers by turning them manually. Paper Eject Roller Figure 6-5. Paper Eject Roller Rev. A...
  • Page 140 Maintenance Timing Sensor With the ADF open, remove 2 screws securing the registration guide on the left. Then clean the timing sensor. Timing Sensor and Reflection Plate Remove 2 screws and open the registration guide. Figure 6-7. Timing Sensor Figure 6-6. Releasing the Registration Guide Rev.
  • Page 141 Maintenance Paper Eject/Reverse Sensor With the ADF open, remove 2 screws securing the reverse guide on the right. Then clean the reverse sensor. Remove 2 screws and remove the lower reverse guide. Paper Eject/Reverse Sensor (and Reflection Plate) Figure 6-8. Paper Eject/Reverse Sensor Figure 6-9.

  • Page 142: Lubrication

    Maintenance 6.1.2 Lubrication This section gives information on where to lubricate in the ADF. R i g h t S i d e P l a t e L o c k i n g WARNING Use only the lubricant specified for this ADF, L e a f S p r i n g since use of other lubricants may damage nearby parts.
  • Page 143 Maintenance Lubricating Point (2) Lubricating Point (3) q q q q Sliding part for the bushing and the pulley roller holder Points: Points: Sliding parts in the dropping roller holders q q q q Sliding part for the slide shaft bushing and the pulley (Colored areas in Figure 6-12) holder Amount:...
  • Page 144 Maintenance Lubricating Point (4) Lubricating Point (5) Points: Sliding parts in the leaf spring for the holding roller Points: Sliding parts for the belt holders and the belt holding roller (Colored areas in Figure 6-13) (2). (Colored areas in Figure 6-14 ) Amount: 5 mg each Amount:...
  • Page 145 Maintenance Lubricating Point (6) Lubricating Point (7) Points: Sliding parts for the belt holders and belt holding roller K-S Points: Sliding part for the DF support shaft and right DF side plate. (Colored areas in Figure 6-15) (Colored area in Figure 6-16) Amount: 5 mg each Amount:...
  • Page 146 Maintenance Lubricating Point (8) Lubricating Point (9) Points: Tension shaft surface around which the right tension roller Points: Contact Points for the eject roller and eject leaf spring turns (Colored points in Figure 6-18) Amount: 5 mg Amount: 5 mg each Note: Do not lubricate the external surface of the right tension roller.
  • Page 147 Maintenance Lubricating Point (10) Lubricating Point (11) Points: Sliding part of the reverse roller shaft Points: Sliding parts of the reverse roller shafts (U) (Colored area in Figure 6-19) (Colored areas in Figure 6-20) Amount: 5 mg each Amount: 5 mg each Note: Do not lubricate the external surface of the reverse roller.
  • Page 148 Maintenance Lubricating Point (12) Lubricating Point (13) q q q q Sliding parts for the flapper shaft and front and rear Points: Points: Sliding parts of the registration roller bushings(8MM) reverse side plates. (Colored areas in Figure 6-21) (Colored areas in Figure 6-22) q q q q Colored areas of the key locks Amount: 10 mg each...
  • Page 149 Maintenance Lubricating Point (14) Lubricating Point (15) Points: Sliding parts for the bushings (MF) and the registration Points: Sliding parts for the registration links and registration pinch pinch roller (Colored areas in Figure 6-23) roller (Colored areas in Figure 6-24) Amount: 10 mg each Amount:...

  • Page 150: Adhesion

    Maintenance 6.1.3 Adhesion Adhering Point (2) This section provides adhering points in the ADF. q Occasion: Belt Pulley (A) installation q Amount: 5 mg each WARNING Use only the adhesive specified for this ADF, since use of other adhesives may damage q Method: Apply lock-tight to the upper half of the screw shaft nearby parts.
  • Page 151 Maintenance Adhering Point (3) q Occasion: Discharging brush installation q Amount: 5 mg each q Method: Apply lock-tight to the half of the screw shaft from the head; then fasten the screw. Note: Do not apply any adhesives to the brush. D i s c h a r g i n g B r u s h S c r e w s s e c u r i n g t h e b r u s h R G u i d e...

  • Page 152: Appendix

    C H A P T E R APPENDIX...
  • Page 153 Appendix 7.1 CONNECTOR SUMMARY Table 7-2. Connector Pin Assignment (CN2) This section describes all connectors on the control board for the ADF and Signal Signal their corresponding signals and functions. Function name destination level Table 7-1. Connector Pin Assignment (CN1) Pulse signal Outputs transportation motor Transportation...
  • Page 154 Appendix Table 7-4. Connector Pin Assignment (CN4) Table 7-6. Connector Pin Assignment (CN6) Signal Signal Signal Signal Function Function name destination level name destination level Ejection cover Outputs +24VDC applied to the Pulse signal Data receive signal TXD (RXD) FD+24V +24V open/close ejection cover open/close switch.

  • Page 155: Exploded Diagrams

    Appendix 7.2 EXPLODED DIAGRAMS Figure 7-1. Exploded Diagram (1) Rev. A...
  • Page 156 Appendix Figure 7-2. Exploded Diagram (2) Rev. A...
  • Page 157 Appendix Figure 7-3. Exploded Diagram (3) Rev. A...

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