Etb Cleaning Control; Etb Engagement/Disengagement Control - Canon imageRUNNER ADVANCE 8105 Series Service Manual

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Technology > Image Formation System > Controls > Transfer
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ETB Cleaning Control

To prevent image failure caused by toner soil on the ETB, the residual toner on the Transfer
Belt is removed.
<Control description>
1) The ITB Cleaning Blade scrapes toner on the ITB.
2) The scraped toner is fed to the Waste Toner Container.
Drive Roller
Brush Roller
Cleaning Shaft
Waste Toner Feed Screw
Cleaning Blade
<Related service mode>
• To clean the ETB (3-round idle rotation of the ETB)
COPIER > FUNCTION > CLEANING > TBLT-CLN
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Technology > Image Formation System > Controls > Transfer
ETB cleaning Unit
F-2-86 F-2-86
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ETB Engagement/Disengagement Control

To prevent image failure caused by toner soil on the ETB, the ETB is engaged or disengaged
with the Photosensitive Drum.
<Execution timing>
•
To make the belt engaged: during printing
• To make the belt disengaged: any timing other than the above
<Control description>
1) Reverse rotation of the Duplex Feed Left Motor (M19) makes the Disengagement Cam
rotate.
2) Rotation of the Disengagement Cam moves the Disengagement Arm up and down to make
the Transfer Belt engaged/disengaged with the Photosensitive Drum.
3) Following 2 sensors detect position of the Transfer Belt.
•
Transfer Belt Engage Sensor (PS55): to detect engagement of the Transfer Belt
• Transfer Belt Disengage Sensor (PS56): to detect disengagement (home position) of
the Transfer Belt.
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