Canon imageRUNNER ADVANCE C5255 Series Service Manual page 96

2
Technology > Image Formation System > Controls > Transfer/separation
● Primary transfer bias control
This control transfers toner on the photosensitive drum to the ITB.
The primary transfer bias (DC), which has been generated by HVT2 (UN17), is applied to the
primary transfer roller.
Bias value is determined by the measurement value of environment sensor 1 (UN22)
DC controller(UN1)
HVT2 (UN17)
DC DC
Primary transfer Primary transfer
roller(Y) roller(M)
2 Technology > Image Formation System > Controls > Transfer/separation
DC DC
Primary transfer
Primary transfer
roller(Bk)
roller(C)
F-2-84
● Secondary transfer bias control
This control transfers toner on the ITB to the paper.
The secondary transfer bias (DC), which has been generated by HVY3 (UN18), is applied to
the secondary transfer outer roller.
Bias value is determined by the measurement value of environment sensor 2 (UN50) and the
paper type.
Drive roller
(steering roller)
2-58
DC controller(UN1)
HVT3 (UN18)
DC
Secondary transfer outer roller
F-2-85
2-58