Canon imageRUNNER ADVANCE C255 Series, Service Manual, Page: 67 / 987

Parts name Role
Drum Assembly After a static latent image has been formed on the Photosensitive Drum, a toner image is formed with
the toner from the Developing Cylinder.
Photosensitive Drum A toner image is formed on the Photosensitive Drum.
Primary Charging Roller The surface of the Photosensitive Drum is charged to make a uniform potential.
Cleaning Blade Residual toner on the Photosensitive Drum is removed.
Cleaning Screw Residual toner is fed.
■ Drive Configuration
M01
M02
CL Drum Motor
Bk Drum _ ITB Motor
Cleaning
Screw
Photosensitive Drum
Primary Charging Roller
Cleaning
Blade
Code Parts name Role
M01 CL Drum Motor Rotation of the Photosensitive Drum (Y/M/C)
M02 Bk Drum _ ITB Motor Rotation of the Photosensitive Drum (Bk)
Related error code
• E010-0001: Bk Drum_ITB Motor startup error
• E010-0002: Bk Drum_ITB Motor speed error
• E010-0003: Bk Drum_ITB Motor lock detection error
• E012-0001: CL Drum Motor startup error
• E012-0002: CL Drum Motor speed error
• E012-0003: CL Drum Motor lock detection error
■ Drum Unit detection
Whether the Drum Unit is installed or not is detected.
Execution condition/timing
At power-on, at recovery from sleep mode (of 4 or more hours), when the Front Door/Right Door is opened/closed.
Detection description
This machine detects the presence/absence of a Drum Unit in the following order.
1. The Drum Unit Memory PCB of the Drum Unit is detected.
If the Drum Unit Memory PCB can be detected, it is judged that the Drum Unit is attached.
If the Drum Unit Memory PCB cannot be detected, step 2 is executed.
2. It is determined by the DC current monitor value at warm-up rotation.
When the current monitor value is less than the specified value: Drum Unit absent
When the current monitor value is the specified value or higher: Drum Unit present
Operation of the host machine
If the Drum Unit is detected as absent, the machine is stopped and the corresponding error code is displayed on the Control
Panel.
2. Technology
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