Canon imageRUNNER ADVANCE 6055 Series, Service Manual

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Technology > Image Formation System > Controls > Transfer
Technology > Image Formation System > Controls > Transfer
● Transfer Bias Control
To transfer toner on the Photosensitive Drum to a paper.
The transfer bias (DC positive), which has been generated on the Transfer High Voltage PCB
(PCB13), is applied to the Transfer Roller.
Following shows the 3 types of transfer bias:
• Print bias: the bias to be applied during printing
• Paper leading edge weak bias: the bias to be applied to the leading edge of the paper (to
prevent failure in paper separation)
• Paper interval bias: the bias to be applied between sheets
The bias value is determined by the environment, the paper type and the mode table.
Transfer High Voltage PCB(PCB13)
DC positive
Transfer Roller
Photosensitive Drum
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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 ETB Cleaning Blade scrapes toner on the ETB.
2) The scraped toner is fed to the Waste Toner Container.
Cleaning Blade
ETB cleaning Unit
Cleaning Shaft
Drive Roller
Brush Roller
Waste Toner Feed Screw
<Related service mode>
• To clean the ETB (3-round idle rotation of the ETB)
COPIER > FUNCTION > CLEANING > TBLT-CLN
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