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The contents of this manual are subject to change without notice. All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be deteced, SEIKO EPSON would greatly appreciate being informed of them.
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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.
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PREFACE This manual describes basic functions, theory of electrical and mechanical operations, maintenance and repair procedures of GT-7000. The instructions and procedures included herein are intended for the experienced repair technicians, and attention should be given to the precautions on the preceding page. The chapters are organized as follows: CHAPTER 1.
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REVISION STATUS Rev. Date Page(s) Contents 1998/09/21 First release 1998/09/25 57,60 Parts List(Table7-13) on page 57 is modified and Exploded Diagram for TPU is added on page 60. 1998/11/23 62-82 Pages(62-82) about ADF are added.
EPSON GT-7000 Chapter 1 Product Description 1.1 Overview 1.2 Specification Major feature of GT-7000 is as follows. GENERAL High quality: 600 dpi, 12bit(12bit-in, 8bit-out) Product type: Flatbed color image scanner High speed: Color 8.1 msec/line, Monochrome 2.7msec/line Sub-scanning method:Movement of the Scanning Head Small size: 287(W) x 425(D) x 88(H) mm (4.5Kg)
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EPSON GT-7000 Chapter 1 Product Description Ω Color Correction: Impact-Dot Printer Insulation resistance: 10 M at 500VDC Thermal Printer (between AC line and chassis) Ink-jet Printer Dielectric strength: AC 1.5kV, 1 min CRT Display (between AC Line and chassis) User defined...
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Operation under direct sunlight or near storng light source is not guaranteed and should be avoided. DOCUMENT Reflective type: Documents which has a smooth surface Figure 1-2. Dimension of GT-7000 Transparency type: (With transparency unit) Reversal film Negative film DIMENSION...
EPSON GT-7000 Chapter 1 Product Description 1.3 Interface Specification Electric specification Compliant to ANSI X3T9.2/375R Revision 10L (SCSI 2) signal ended 1.3.1 SCSI Model Connector: Two 50-pin connectors (see figure1-3.) Any item not included in this specification shall be in compliance with...
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EPSON GT-7000 Chapter 1 Product Description Table 1-1. SCSI Connector Pin Assignment Signal No.(50) Description 39, 40 Data Bus 0 Data Bus 1 Data Bus 2 Data Bus 3 Data Bus 4 Data Bus 5 Data Bus 6 Data Bus 7...
EPSON GT-7000 Chapter 1 Product Description 1.4 Control Codes Table 1-5. Control Codes The command level of this scanner is ESC/IB-8. The commands Category Command Name Code supported are shown in the table below. Auxiliary Set Scanning Mode ESC gi...
EPSON GT-7000 Chapter 1 Product Description 1.5 Control Specification 1.5.3 Switch Setting Among the switches equipped with this scanner, SCSI switch and the 1.5.1 Switch Specification terminator switch, which are used for SCSI interface, have the following settings. This scanner is equipped with 4 switches. Their functions are described SCSI-ID Setting Switch(Rotary Switch) below.
EPSON GT-7000 Chapter 1 Product Description 1.5.4 Error Indication When an error occurs, the scanner stops operating and the Operate C H E C K Be aware that the terminator switch must be set P O I N T light show the type of error.
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EPSON GT-7000 Chapter 1 Product Description Table 1-9. Error Indications Light Error Type Red + Green LED Option Error blinking (Only when the optional unit is installed and (short interval) operation is available by [ESC e].) • Cause: Unit cover open, or paper Empty •...
EPSON GT-7000 Chapter 2 Operating Principles 2.1 Engine Mechanism CCD Sensor Board: This board has Color CCD line sensor (independent R,G,B), and controls it and drives circuit. This section explains the engine function and operating principles. Engine can be divided into Carriage Unit and Carriage Move...
EPSON GT-7000 Chapter 2 Operating Principles 2.1.2 Carriage Move Mechanism Carriage Unit slides into sub-scan direction along with the guide rail. For this sliding operation, the carriage motor drives the timing belt attached Scanning image is performed in the main scan direction(=1 line) by the...
EPSON GT-7000 Chapter 2 Operating Principles 2.1.3 Power Supply Circuit Power supply circuit in this scanner generates direct current power necessary for driving the controller board and scanner engine. Table below shows each power supply circuit for different destinations. Table 2-1. Power Supply Circuit Board for Destination Specification Unit Part No.
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EPSON GT-7000 Chapter 2 Operating Principles + 1 2 V D C + 1 2 V D C R e g u l a t o r I C + 5 V D C F u l l W a v e...
EPSON GT-7000 Chapter 2 Operating Principles 2.1.4 Control Circuit 2.1.4.1 Control Circuit Overview Figure 2-6 is SCSI control circuit block diagram, and Figure 2-7 is for There are 2 types of control circuit boards due to the interface USB. This scanner uses the one-tip 16-bit bus CPU(IC22) at 20MHz specification.
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EPSON GT-7000 Chapter 2 Operating Principles S R A M D - R A M ( I C 8 , I C 1 2 ) I C 1 9 , I C 2 0 ) C L K ( C R 1 )
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EPSON GT-7000 Chapter 2 Operating Principles Table 2-3. Major ICs Location Function M37920 IC22 24-bit Address Bus 16-bit Data Bus SRAM 256K 15ns IC8, IC12 E02A28 Peripheral Memory For Imge Processing( for enlargement and minification buffer) HM514260 IC19, IC20 E02A2B Peripheral Memory...
EPSON GT-7000 Chapter 3 Troubleshooting 3.1 Overview Table 3-1. Self-Diagnostic Indication This chapter explains the troubleshooting of this scanner. Light Error Type Nothing Command Error 3.2 Self-Diagnostic Function • Cause: Unidentified command is detected. • Disposition: The scanner ignores the wrong command or parameter.
EPSON GT-7000 Chapter 3 Troubleshooting 3.3 Troubleshooting Table 3-2. Self-Diagnostic Indication This section describes troubleshooting from the abnormal phenomenon. Light Error Type You can isolate the faulty unit based on the abnormal phenomenon. Red + Green LED Option Error See Table 3-3 to find the closest phenomenon and the corresponding...
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EPSON GT-7000 Chapter 3 Troubleshooting Table 3-6. Carriage Unit does not operate Cause Step Checkpoint Finding Solution Table 3-4. “OPERATE” Light does not come on. Power board With the scanner power on, Replace the power Cause Step Checkpoint Finding Solution is broken.
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EPSON GT-7000 Chapter 3 Troubleshooting Table 3-7. Carriage moves but Error indication appears Cause Step Checkpoint Finding Solution Table 3-9. Scanned image is unclear. CR home position Check the signal Replace the CR Cause Step Checkpoint Finding Solution sensor is broken.
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EPSON GT-7000 Chapter 3 Troubleshooting Table 3-11. USB Interface Error(USB Model Only) Cause Step Checkpoint Finding Solution Host and O/S On the Windows, Replace the host. (Windows95/98) go to “My → does not support the Computer” ”Prope → USB. rty”...
Chapter 4 Disassembly and Assembly 4.1 Overview 4.1.2 Tools Tools used for servicing are as listed in the table below. This chapter describes for disassembling GT-7000 and precaution to take during transportation. Table 4-1. Tools Description Availability SE Part No.
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EPSON GT-7000 Chapter 4 Disassembly and Assembly Table 4-3. Screws Head Shape Type Washer Hole Appearance Cross-recessed Binding Standard With Outside toothed lock ------ washers S-Tite B-Tite With Spring lock washers P-Tite Rev. A...
EPSON GT-7000 Chapter 4 Disassembly and Assembly 4.2 Disassembly Procedures 4.2.1 Carriage Lock Release 1. Release the carriage lock located at left side of the scanner body by using (-) screw driver. R e l e a s e L o c k...
EPSON GT-7000 Chapter 4 Disassembly and Assembly 4.2.2 Document Cover Removal 1. Open the document cover. D o c u m e n t C o v e r 2. Hold edges of the cover, then release two hooks backward.
EPSON GT-7000 Chapter 4 Disassembly and Assembly 4.2.3 Upper Cover Removal 1. Release the carriage lock. (see Section 4.2.1) 3 F o o k s a t f r o n t s i d e 2. Remove the document cover. (see Section 4.2.2) 3.
EPSON GT-7000 Chapter 4 Disassembly and Assembly 4.2.4 Inverter Lamp/Inverter Board Removal 1. Release the carriage lock. (see Section 4.2.1) C C P ( M 3 x 8 ) 2. Remove the document cover. (see Section 4.2.2) 3. Remove the upper cover. (see Section 4.2.3) 4.
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EPSON GT-7000 Chapter 4 Disassembly and Assembly 6. Remove the inverter lamp connector from the inverter board. I n v e r t e r B o a r d 7. Remove one black screw and a connector(2-pin) for CCD sensor, then remove the inverter board.
EPSON GT-7000 Chapter 4 Disassembly and Assembly 4.2.5 Carriage Unit Removal 1. Release the carriage lock. (See Section 4.2.1) 2. Remove the document cover. (See Section 4.2.2) 3. Remove the upper cover. (See Section 4.2.3) 4. Remove the metal clamp securing the carriage and the timing belt by using the (-) screw driver.
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EPSON GT-7000 Chapter 4 Disassembly and Assembly 5. Remove the hexagon nut located back of the carriage guide shaft. 6. Remove a spring and one gold screw(CBS, 3x4) securing the carriage driven pulley. C B S ( M 3 x 4 ) Figure 4-14.
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EPSON GT-7000 Chapter 4 Disassembly and Assembly 7. Remove the timing belt from the carriage driven pulley. 8. Remove the carriage guide shaft from the carriage unit. D r i v e n P u l l e y T i m i n g B e l t Figure 4-16.
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EPSON GT-7000 Chapter 4 Disassembly and Assembly 9. From the back of the carriage unit, remove FFC metal clamp by using (-) driver. C a r r i a g e U n i t F F C M e t a l C l a m p...
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EPSON GT-7000 Chapter 4 Disassembly and Assembly 10. Remove FFC from the carriage unit by releasing a connector and 2 guide tabs, and also remove the carriage unit. C a r r i a g e U n i t Figure 4-19.
EPSON GT-7000 Chapter 4 Disassembly and Assembly 4.2.6 Carriage Motor/Timing Belt Removal 1. Release the carriage lock. (See section 4.2.1) C B S ( M 3 x 5 ) 2. Remove the document cover.(See section 4.2.2) 3. Remove the upper cover. (See section 4.2.3) 4.
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EPSON GT-7000 Chapter 4 Disassembly and Assembly 7. Disconnect the CR motor unit cable from the main board connector, and remove the CR motor unit. C o n n e c t o r 8. Remove the timing belt from the CR motor unit.
EPSON GT-7000 Chapter 4 Disassembly and Assembly 4.2.7 Main Board Removal Note 1) SCSI is used as model in this section. The difference between SCSI and USB is the number of the screw at Step6. C a r r i a g e U n i t 1.
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EPSON GT-7000 Chapter 4 Disassembly and Assembly 6. Remove 4 screws(CP, 2.5x6) located around the I/F connector behind the scanner body and one screw(CP, 3x5). P S U n i t C a r r i a g e F F C...
EPSON GT-7000 Chapter 4 Disassembly and Assembly 4.2.8 Panel Board Removal 1. Release the carriage lock. (See Section 4.2.1) S h i e l d B o a r d f o r 2. Remove the document cover. (See Section 4.2.2)
EPSON GT-7000 Chapter 4 Disassembly and Assembly 4.2.9 Power board Removal 1. Release the carriage lock. (See Section 4.2.1) 2. Remove the document cover. (See Section 4.2.2) 3. Remove the upper cover. (See Section 4.2.3) C A U T I O N In the next steps, move the carriage back and forth slowly by hand, according to your necessity.
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EPSON GT-7000 Chapter 4 Disassembly and Assembly 7. Remove 2 gold screws(CBS, 3x4) securing the shield board of the power board, and remove the shield board toward inside of the C B S ( M 3 x 4 ) body.
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EPSON GT-7000 Chapter 5 Adjustment 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 “Disassembly and Assembly”. Rev. A...
Grease G-26 B702600001 Note*) “E” means exclusive product for EPSON. (Not available on the C A U T I O N Never apply any organic solvent such as thiner and market) benzine, since there may damage deteriorate plastic and rubber parts.
EPSON GT-7000 Chapter 7 Appendix 7.1 Overview This section provides useful information for servicing to this scanner. L a m p 7.1.1 Interconnection C N 2 C N 1 C N 2 Following figures shows interconnection of the scanner. 2 - p i n...
EPSON GT-7000 Chapter 7 Appendix 7.2 Parts List Table 7-7. Power supply Board CN1 The table below shows the parts list of GT-7000. (Refer to Figure7-3 Pin No. Signal and 7-4 for numbers in the table) AC(H) AC(L) Table 7-11. Parts List...
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EPSON GT-7000 Chapter 7 Appendix Table 7-12. Parts List Table 7-13. Parts List Number Parts Name Number Parts Name Sheet, Cover, 25 Double side tape, 28x10 Sheet, Cover, 18 Cross-recessed(+), Cup P-tite, 3x8, F/ZB Cover, Inflet Harness Sheet Spacer FFC...
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EPSON GT-7000 Chapter 7 Appendix See P.2 114 115 for 220/240V except Japan(WINS) for RUSSIA for 120V for EAI for 100V for Japan EXPLODED DIAGRAM FOR GT-7000/GT-7000PHOTO/PERFECTION 636U (1) Rev.01 10010 Figure 7-3. Exploded Diagram (1) Rev. A...
Document setting position:Set the left side of Document to the left Connectivity side of ADF’s paper setting and support This Automatic Document Feeder can use only for GT-7000 series. the right side of Document by ADF’s paper guide.
EPSON GT-7000 Chapter 7 Appendix Color deviation: Less than 1 dot (at 600dpi) 7.3.2.5 Environmental Conditions Less than 2 dot (the document area of top Temperature: Operating ∼ ° and bottom 5cm) ∼ ° Storage Humidity: ∼...
EPSON GT-7000 Chapter 7 Appendix CE Marking: 7.3.2.10 Physical Dimensions and Weight Dimensions: Low Voltage Directive 73/23/EEC:EN60950 319(W) x 451(D) x 137(H) mm Weight: EMC Directive 89/336/EEC Approx. 2.2Kg EN55022 Class B EN 50082-1 IEC 801-2...
EPSON GT-7000 Chapter 7 Appendix 7.3.3 Interface Connector shape: 8 pin DIN connector (Male) Figure 7-8. Connector Shape Pin Assignment Table 7-14. Pin Assignment Pin No. Signal Discription +24V Serial data latch Serial out data Serial in data Serial clock Rev.
EPSON GT-7000 Chapter 7 Appendix 7.4 Disassembly Here explains disassembly procedures of ADF. Unless otherwise specified, disassembled units or parts can be reassembled by reversing the disassembly procedure. 7.4.1 B81314 Main Board Removal 1. Remove the tray. 2. Flip over the ADF so that you can see the bottom of the ADF.
EPSON GT-7000 Chapter 7 Appendix 7.4.2 ASF Part Open 1. Remove 4 cables from the B81314 Main Board. 2. Open the cover and remove a guide bar. Also, diengage right and left connections and remove the cover from ADF. ASF release...
EPSON GT-7000 Chapter 7 Appendix 7.4.2.1 Disassembly of ASF Part 2. Flip over the ADF again. Remove 4 screws (gold, P-tite + washer), and remove Motor/ Solenoid Assembly. 1. In order to remove the cover, remove 2 screws(black, CB + washer) located on the right and left edges of the front cover.
EPSON GT-7000 Chapter 7 Appendix 7.4.2.2 Gear Frame 10070011 1. Release the lock of 2 shaft supports(white plastic parts) and remove Remove 3 screws 2 screws. Release the lock of shaft support One Screw** Remove 2 screws. 10070014 Figure 7-17. Removed Motor/Solenoid Figure 7-19.
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EPSON GT-7000 Chapter 7 Appendix 3. Insert (-) driver into the gap shown in the figure below, and remove 10070017 the white standard board by pushing it to the arrowed direction. Removed white standard board, 10070016 Slide the white standard board to this direction strongly and release the hook.
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EPSON GT-7000 Chapter 7 Appendix 5. Remove one metal part and 3 screws. (When you remove one of the screws, push the release lever to the arrowed direction. 10070020 Remove 4 screws. Remove Move the lever Remove one this gear.
EPSON GT-7000 Chapter 7 Appendix 7.4.3 Disassembly of ASF and Frame 10070021 1. Remove 1 screw (1 silver, P-tite with washer). If 2 screws(2 gold, P- tite with washer) shown in the figure7-19 have not been removed yet, remove them. Move the paper edge guide to the arrowed direction in the Figure7-26.
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EPSON GT-7000 Chapter 7 Appendix 3. Remove the actuator and PE board assembly. 10070023 Figure 7-28. Removing PE Board Assembly and Actuator 1 PE Board Assembly Actuator 10070024 Figure 7-29. Removing PE Board Assembly and Actuator 2 Rev. C...
EPSON GT-7000 Chapter 7 Appendix 7.4.4 ASF Disassembly Since the procedures of ASF disassembly for GT-7000 are same as those of Stylus Color 400, Stylus Color 600 and Stylus Photo, refer to one of those service manuals. 10070025 Figure 7-30. ASF Assembly...
EPSON GT-7000 Chapter 7 Appendix 7.5 Parts List Table 7-16. Parts List for ADF Number Name 1-28 Cover, Top Table below shows the parts list of ADF. 1-29 Harness, ASF Table 7-15. Parts List for ADF 1-30 Clamp, Cable 3...
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EPSON GT-7000 Chapter 7 Appendix Table 7-17. Parts List Table 7-18. Parts List Number Name Number Name 3-01 Frame, Gear 4-03 Shaft Release 3-02 Frame, Motor 4-04 Anti Static Brush 3-03 Motor Assembly, ADF 4-05 Papper Guide, Main 3-04 Solenoid Assembly...
EPSON GT-7000 Chapter 7 Appendix 7.6 ADF Exploded Diagram Table 7-19. Parts List Number Name 5-08 Compression Spring, 1.66 Following pages show exploded diagram of ADF. 5-09 Holder, Sheet, Paper Feed 5-10 Sheet, PF 5-11 Bush, Fasten, Shaft, Left 5-12...