Canon imageRUNNER ADVANCE 6075 Series Service Manual page 114

2
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
2 Technology > Image Formation System > Controls > Transfer
Photosensitive Drum
Transfer Roller
F-2-84
● 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.
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
2-60
ETB cleaning Unit
F-2-85
2-60