Konica Minolta BizHub C360 Service Manual page 147

13. 1ST IMAGE TRANSFER SECTION
B. 1st image transfer roller retraction
• Rotation of the fusing motor is transmitted to the transfer belt retraction clutch via the fus-
ing drive release gear.
• When the transfer belt retraction clutch is turned ON, rotation of the fusing motor is trans-
mitted to the drive gear.
• Rotation of the drive gear rotates the pressure cam, so that the position of contact
between the slide plate and the cam is varied.
• The pressure cam is pushed to move the slide plate to the retraction position (toward the
transfer belt drive roller side).
• The movement of the slide plate results in the 1st image transfer roller drive arm being
rotated. The rotation of the 1st image transfer roller drive arm raises the 1st image trans-
fer roller (Y, M, C), so that the transfer belt is retracted from the PC drum.
• When the slide plate moves to the pressure position, the actuator of the transfer belt
retraction sensor is moved to the retraction position by the spring provided for the actua-
tor.
• The actuator unblocks the transfer belt retraction sensor and the slide plate movement is
detected.
• The transfer belt retraction clutch is turned OFF.
• The cam will stop rotating to stop the sliding plate.
• The 1st image transfer roller (Y, M, and C) will keep their retraction position.
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Transfer belt retraction sensor actuator (retraction position)
Transfer belt retraction sensor actuator (pressure position)
Transfer belt retraction
sensor (PS39)
Theory of Operation Ver. 1.0 Jul. 2009
A0EDT2C062DA