13. Image transfer section
Theory of operation ver. 2.0 Nov. 2007
44
bizhub C10
Composition/Operation
13.3.2
1st transfer roller voltage ON/OFF control
13.3.3
2nd transfer roller pressure/retraction mechanism
• In color printing, the toner image of each color of toner is transferred to the transfer belt
(thus a total of four times to cover the four colors of toner). pressure/retraction control
with respect to the transfer belt is therefore provided for the 2nd transfer roller.
• In the standby state, the 2nd transfer roller is in a position retracted from the transfer belt.
A. Pressure/retraction operation
• The pressure/retraction operation is performed by the main motor, pressure/retraction
solenoid /2nd image transfer, and pressure/retraction clutch.
• When the pressure/retraction solenoid /2nd image transfer is energized, drive from the
main motor is transmitted to the pressure/retraction clutch.
4139T2E575AA
/TOD (Image
W
rite Start signal)
1st Transfer o
u
tp
u
t
Belt Positioning Sensor (PS4)
Image
w
rite start position for
a paper size of A4 or smaller
Image
w
rite start position for
a paper size greater than A4
Rack Motor (M2)
4139to2079e0
Pressure/Retraction Clutch
Main Motor
2nd Transfer Roller
Pressure/Retraction Clutch
Transfer Belt
2nd Transfer Assy
Pressure/Retraction Solenoid /
2nd Image Transfer
Confidential – for internal use only, do not distribute
