Ricoh GR-C1 Series Service Training page 160

ITB Contact Mechanism
K
Image Transfer
Roller
This mechanism only exists for CMY. K is always in contact except when the lock
lever is released.
The ITB contact motor drives this mechanism through a worm gear and a cam.
When the cam moves the slider, the image transfer rollers for CMY move up into
contact with the OPC drums, or down away from them.
If the mechanism is defective, and is stuck with the CMY rollers up against the ITB,
the cam can be turned manually to lower the rollers, in order to remove the ITB unit
without damaging the machine.
This was explained earlier (see Replacement Procedures CMY in the section about
the Photoconductor Unit).
Slide 160
There is no contact and release procedure for jobs that have a mixture of color
and black-and-white pages. The belt always stays in contact with all 4 PCDUs
during printing.
C M
ITB Contact
Slider
Sensor
160
ITB Contact
Cam (CMY)
Y
ITB Contact
Motor
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