Primary Transfer Control - Canon imageRUNNER ADVANCE C5500 Series Service Manual

Related Error Code
ATR output error:
E020-01A8/ E020-01A9
E020-02A8/ E020-02A9
E020-03A8/ E020-03A9
E020-04A8/ E020-04A9
E020-01B8/ E020-01B9
E020-02B8/ E020-02B9
E020-03B8/ E020-03B9
E020-04B8/ E020-04B9
E020-0124/ E020-0134
E020-0224/ E020-0234
E020-0324/ E020-0334
E020-0424/ E020-0434

Primary Transfer Control

■ Basic Control
Primary transfer control refers to control to apply a primary transfer bias to the Primary Transfer Roller and transfer the toner on
the Photosensitive Drum to the ITB. Note that the process of transferring toner from the ITB to the paper is called secondary
transfer.
Image of operation
No.
[ 1 ] Primary Transfer Roller
[ 2 ] ITB
[ 3 ] Photosensitive Drum
Overview
The following is an overview of the basic control in the primary transfer control.
• Apply the primary transfer bias to the Primary Transfer Roller.
• Transferability becomes unstable due to variations in resistance caused by wear of the Primary Transfer Roller,
environmental factors, such as temperature and humidity, and others.
In order to prevent this, this machine performs primary transfer ATVC (Auto Transfer Voltage Control) to calculate the optimal
voltage to apply to the roller.
• Since the conditions are not necessarily exactly the same for all of the rollers, primary transfer ATVC is performed to all
colors.
• Since the target current also changes if the process speed is changed, primary transfer ATVC is performed for each change
in speed.
[2]
[1]
[3]
Parts name
83
2. Technology