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PCDU (Photo Conductor and Development Unit)
7.7.2 MECHANISM (PCU)
Drum Drive
Bk and CMY are both driven by motor.
PCU | Drive source |
Bk | PCU motor: Black / ITB drive motor* |
CMY | PCU motor: CMY |
* The PCU motor: Black / ITB drive motor is used to drive both the image transfer unit and the waste toner bottle.
Charge
This device uses a charge roller [B] for all four colors to reduce generation of ozone.
The charge roller, which is a rubber-covered roller that has a metal shaft, rotates in the forward direction contacting the drum [A], and applies a charge to the drum surface uniformly.
When the charge roller is dirty, an uneven charge is generated, so a cleaning roller [C] always contacts the charge roller.
Drum Cleaning
Residual toner on the drums after image transfer is recovered by a cleaning blade [A]. The cleaning blade is installed counter to the drum rotation in contact with the drum, and scrapes toner off.
Detailed Descriptions
Detailed Descriptions
Detailed Descriptions