Minolta Di251 - Page 180

FrameMaker Ver.5.5E(PC) Di251/Di351 DIS/REASSEMBLY, ADJUSTMENT
05.03.01
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CONTENTS
1. SERVICE INSTRUCTIONS .............................................................................D-1
1-1. IDENTIFICATION OF FUSES AND CIRCUIT BREAKERS ....................D-1
1-2. PRECAUTIONS FOR HANDLING THE LASER EQUIPMENT ...............D-1
1-3. PARTS WHICH MUST NOT BE TOUCHED ...........................................D-2
(1) Red painted Screws ........................................................................D-2
(2) Variable Resistors on Board ............................................................D-2
(3) Other Screws ...................................................................................D-2
2. DISASSEMBLY/REASSEMBLY ......................................................................D-3
2-1. DOORS, COVERS, AND EXTERIOR PARTS:
IDENTIFICATION AND REMOVAL PROCEDURES ..............................D-3
2-2. REMOVAL OF CIRCUIT BOARDS AND OTHER ELECTRICAL
COMPOMENTS .......................................................................................D-6
2-3. MAINTENANCE SCHEDULE ..................................................................D-8
2-4. PAPER TAKE-UP/TRANSPORT SECTION ............................................D-10
(1) Removal of the Paper Take-Up Roll ................................................D-10
(2) Removal of the Paper Dust Remover Assy .....................................D-10
(3) Cleaning of the Paper Dust Remover Assy .....................................D-11
(4) Removal of the Synchronizing Roller Gear and Synchronizing
Roller Bushing .................................................................................D-11
(5) Cleaning of the Side Cover ..............................................................D-12
2-5. OPTICAL SECTION ................................................................................D-13
(1) Removal of the PH Unit ...................................................................D-13
(2) Removal of the CCD Unit ................................................................D-16
(3) Cleaning of the Scanner Rails/Bushings .........................................D-16
(4) Cleaning of the Mirrors ....................................................................D-17
(5) Cleaning of the Lens ........................................................................D-17
(6) Cleaning of the Original Glass .........................................................D-17
(7) Removal of the Scanner ..................................................................D-18
(8) Removal of the Scanner Drive Cables ............................................D-19
(9) Winding of the Scanner Drive Cables ..............................................D-20
2-6. IMAGE TRANSFER SECTION ................................................................D-24
(1) Removal of the Image Transfer Roller Assy ....................................D-24
(2) Cleaning of the Comb Electrode ......................................................D-24
(3) Cleaning of the Pre-Image Transfer Guide Plate ............................D-25
(4) Removal of the Ozone Filter ............................................................D-25
2-7. DEVELOPING SECTION ........................................................................D-26
(1) Removal of the Imaging Cartridge ...................................................D-26
2-8. FUSING SECTION ..................................................................................D-27
(1) Removal of the Fusing Unit .............................................................D-27
(2) Removal of the Fusing Roller Heater Lamp, Right Fusing
Roller, and Left Fusing Roller ..........................................................D-28
(3) Remove the Fusing Roller Thermistor, Fusing Roller Hearter
Lamp Fuse, and Fusing Roller Thermostat .....................................D-31
3. ADJUSTMENT .................................................................................................D-32
3-1. ADJUSTMENT JIGS AND TOOLS USED ...............................................D-32
3-2. ADJUSTMENT REQUIREMENT LIST ....................................................D-32