Develop QC 2235 Plus Service Manual page 18

5.3 Operation......................................................................................................... 2-16
5.3.1 PC Drum Drive mechanism........................................................................ 2-16
5.3.2 PC Drum Phase control ............................................................................. 2-16
5.3.3 PC Drum small amount rotation control ..................................................... 2-17
6. Charge Corona section ...................................................................................... 2-18
6.1 Operation......................................................................................................... 2-19
6.1.1 PC Drum Charge Corona ON/OFF control................................................. 2-19
6.1.2 Cleaning/Main Erase mechanism............................................................... 2-19
7. Developing section............................................................................................. 2-20
7.1 Composition .................................................................................................... 2-20
7.2 Drive ................................................................................................................ 2-21
7.3 Operation......................................................................................................... 2-22
7.3.1 Developing Drive control ............................................................................ 2-22
7.3.2 Developer flow............................................................................................ 2-22
7.3.3 Developing bias .......................................................................................... 2-23
7.3.4 HMT (High grade Micro Toning) development ............................................ 2-23
7.3.5 Developer scattering prevention mechanism.............................................. 2-23
7.3.6 ATDC Sensor control.................................................................................. 2-24
8. Toner Supply section.......................................................................................... 2-26
8.1 Composition .................................................................................................... 2-26
8.2 Drive ................................................................................................................ 2-27
8.3 Operation......................................................................................................... 2-28
8.3.1 Toner Replenishing mechanism/control ..................................................... 2-28
8.3.2 Toner Near-Empty and Toner Empty detection control............................... 2-29
8.3.3 Shutter mechanism .................................................................................... 2-30
9. Transfer Corona section ..................................................................................... 2-31
9.1 Composition .................................................................................................... 2-31
9.1.1 1st Image Transfer section ......................................................................... 2-31
9.1.2 2nd Image Transfer section ........................................................................ 2-33
9.2 Drive ................................................................................................................ 2-34
9.2.1 1st Image Transfer section ......................................................................... 2-34
9.2.2 2nd Image Transfer section ........................................................................ 2-35
9.3 Operation......................................................................................................... 2-35
9.3.1 Transfer Belt speed control......................................................................... 2-35
9.3.2 1st Image Transfer Roller mechanism ........................................................ 2-36
9.3.3 2nd Image Transfer Roller pressure mechanism........................................ 2-39
9.3.4 AIDC Sensor Shutter mechanism .............................................................. 2-40
9.3.5 ATVC (Auto Transfer Voltage Control) ........................................................ 2-41
QC 2235plus Theory of Operation Ver1.0 Mar. 2004
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