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.
7. Detailed Descriptions
1136
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