Develop D 16G - Page 7

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1-5. Precautions for Handling the Laser Equipment ........................................D-5
2. PRECAUTIONS FOR DISASSEMBLY/ADJUSTMENTS .................................D-6
2-1. Parts That Must Not be Touched .............................................................D-6
(1) Red Painted Screws ........................................................................D-6
(2) Variable resistors on board ..............................................................D-6
(3) Other Screws not Marked with Red Paint ........................................D-6
3. DISASSEMBLY/REASSEMBLY ......................................................................D-7
3-1. Identification of Exterior Parts and Removal Procedures for Them .........D-7
3-2. Removal of Circuit Boards and Other Electrical Components .................D-9
(1) Removal of the Controller/Mechanical Control Board ......................D-10
(2) Removal of the Control Panel ..........................................................D-10
(3) Removal of the Interface Board .......................................................D-11
(4) Removal of the Power Unit ..............................................................D-12
(5) Removal of the High Voltage Unit ....................................................D-14
3-3. Removal of Units ......................................................................................D-15
(1) Removal of the IR Unit .....................................................................D-15
(2) Removal of the PH Unit ...................................................................D-16
3-4. Disassembly of the Image Reading Section ............................................D-18
(1) Removal of the Original cover set sensor ........................................D-18
(2) Removal of the Upper Cover Assy. (Original Glass) ........................D-18
(3) Removal of the Scanner Motor ........................................................D-18
(4) Removal of the Scanner Assy. .........................................................D-19
(5) Removal of the Timing Belt ..............................................................D-20
3-5. Disassembly of the Main Drive Section ....................................................D-21
(1) Removal of the Main Motor ..............................................................D-21
(2) Removal of the Paper Empty Sensors .............................................D-21
(3) Removal of the Paper Take-Up Solenoid ........................................D-23
(4) Removal of the Paper Take-Up Clutch Gear ...................................D-24
(5) Removal of the Torque Limiter .........................................................D-25
(6) Disassembly of the Fusing Unit .......................................................D-26
4. ADJUSTMENTS ...............................................................................................D-29
4-1. Electrical/Image Adjustment .....................................................................D-29
(1) Accessing the Service Mode ............................................................D-29
(2) Accessing the “ADJUST” Menu .......................................................D-29
(3) Printing a Test Pattern .....................................................................D-29
(4) Margin Adjustment (Leading Edge/Trailing Edge/Both Sides) .........D-30
(5) Printer’s Main Scanning Registration Adjustment ............................D-31
(6) Printer’s Sub-Scanning Registration Adjustment .............................D-32
(7) Scanner’s Main Scanning Zoom Ratio Adjustment ..........................D-33
(8) Scanner’s Sub-Scanning Zoom Ratio Adjustment ...........................D-35
(9) Scanner’s Main Scanning Registration Adjustment .........................D-37
(10) Scanner’s Sub-Scanning Registration Adjustment ..........................D-39
5. MISCELLANEOUS ...........................................................................................D-40
5-1. Removal of the Mechanical Counter (Option) ..........................................D-40
5-2. Updating the Firmware .............................................................................D-41
(1) Installing the GDI Printer/TWAIN Driver Using Plug and Play .........D-41
5-3. Procedure for Updating the GDI Firmware ...............................................D-43