Konica Minolta BIZHUB C3100P Service Manual page 8

1.1 Main body (1/2).........................................................................................................................................................................N-1
1.2 Main body (2/2).........................................................................................................................................................................N-2
O THEORY OF OPERATION bizhub C3100P..................................................................................O-1
1. INTERFACE SECTION...............................................................................................................................................O-1
2. WRITE SECTION.......................................................................................................................................................O-2
2.1 Configuration.............................................................................................................................................................................O-2
2.2 Operation..................................................................................................................................................................................O-2
2.2.1 Overview.........................................................................................................................................................................O-2
2.2.2 Laser exposure process..................................................................................................................................................O-2
2.2.3 Laser emission timing.....................................................................................................................................................O-3
2.2.4 Color registration control (color shift correction) system.................................................................................................O-3
2.2.5 Laser emission area........................................................................................................................................................O-5
2.2.6 PH unit temperature detection control............................................................................................................................O-6
2.2.7 Main scan magnification adjustment...............................................................................................................................O-6
2.2.8 Image processing............................................................................................................................................................O-6
3. PHOTO CONDUCTOR SECTION..............................................................................................................................O-7
3.1 Configuration.............................................................................................................................................................................O-7
3.2 Drive..........................................................................................................................................................................................O-7
3.3 Operation..................................................................................................................................................................................O-7
3.3.1 Photo conductor drive mechanism..................................................................................................................................O-7
3.3.2 Charge roller...................................................................................................................................................................O-7
3.3.3 Cleaning roller.................................................................................................................................................................O-8
3.3.4 Imaging unit detection.....................................................................................................................................................O-8
3.3.5 Imaging unit consumption rate detection........................................................................................................................O-8
3.3.6 Imaging unit life detection...............................................................................................................................................O-8
4. DEVELOPING SECTION..........................................................................................................................................O-10
4.1 Configuration...........................................................................................................................................................................O-10
4.2 Drive........................................................................................................................................................................................O-10
4.3 Operation................................................................................................................................................................................O-10
4.3.1 Toner flow.....................................................................................................................................................................O-10
4.3.2 Developing system........................................................................................................................................................O-11
4.3.3 Cleaning mechanism....................................................................................................................................................O-11
4.3.4 Toner collecting port shutter mechanism......................................................................................................................O-12
4.3.5 Image processing..........................................................................................................................................................O-12
5. TONER SUPPLY SECTION.....................................................................................................................................O-13
5.1 Configuration...........................................................................................................................................................................O-13
5.2 Drive........................................................................................................................................................................................O-13
5.3 Operation................................................................................................................................................................................O-13
5.3.1 Toner collecting port shutter mechanism......................................................................................................................O-13
5.3.2 Toner replenishing mechanism.....................................................................................................................................O-14
5.3.3 Toner replenishing control............................................................................................................................................O-14
5.3.4 Auxiliary toner replenishing...........................................................................................................................................O-15
5.3.5 Toner cartridge detection..............................................................................................................................................O-15
5.3.6 Toner consumption rate detection................................................................................................................................O-15
5.3.7 Toner life detection.......................................................................................................................................................O-15
5.3.8 Monochrome prints.......................................................................................................................................................O-15
6. 1ST TRANSFER SECTION......................................................................................................................................O-16
6.1 Configuration...........................................................................................................................................................................O-16
6.2 Drive........................................................................................................................................................................................O-16
6.3 Operation................................................................................................................................................................................O-16
6.3.1 1st transfer output control.............................................................................................................................................O-16
6.3.2 1st transfer roller pressure/retraction control................................................................................................................O-17
6.3.3 Transfer belt cleaning mechanism................................................................................................................................O-18
6.3.4 1st transfer belt backward rotation control....................................................................................................................O-18
6.3.5 Toner collecting port shutter mechanism......................................................................................................................O-18
6.3.6 Transfer belt new article detection................................................................................................................................O-19
7. 2ND TRANSFER SECTION.....................................................................................................................................O-20
7.1 Configuration...........................................................................................................................................................................O-20
7.2 Drive........................................................................................................................................................................................O-20
7.3 Operation................................................................................................................................................................................O-20
7.3.1 2nd transfer roller pressure mechanism.......................................................................................................................O-20
7.3.2 2nd transfer voltage control..........................................................................................................................................O-21
7.3.3 2nd transfer voltage setting control (ATVC: auto transfer voltage control)...................................................................O-21
7.3.4 2nd transfer roller cleaning control................................................................................................................................O-22
7.3.5 Toner density detection control.....................................................................................................................................O-22
7.3.6 IDC sensor calibration control.......................................................................................................................................O-22
7.3.7 IDC sensor cover open/close mechanism....................................................................................................................O-22
7.3.8 2nd transfer roller new article detection........................................................................................................................O-23
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