1St Transfer Roller Pressure/Retraction Control - Konica Minolta BIZHUB C3100P Service Manual

(2) Color mode
• During the 1st transfer in the color mode, the 1st transfer roller/Y, M, C is moved toward the photo conductor (pressed) so that transfer
belt is pressed against the photo conductor.
(3) Others
• The transfer roller is moved (retracted) and the photo conductor is stopped in the ordinary standby state.

6.3.2 1st transfer roller pressure/retraction control

• To extend the service life of the photo conductor/Y, M, C, the pressure position of the 1st transfer roller is changed between the
monochrome mode and the color mode.
The 1st transfer roller/K is not provided with a retraction mechanism; the transfer belt is pressed against the photo conductor/K at all times.
• The Transport motor provides the drive for pressure/retraction operation of the 1st transfer roller/Y, M, C.
[1] Sliding plate
[3] Pressure/release clutch
[5] Pressure cam
(1) 1st transfer roller pressure operation
1. Rotation of the Transport motor is transmitted by a gear train to the pressure/release clutch.
2. Drive through the pressure/release clutch rotates the pressure cam a half turn, thus pushing back the sliding plate.
3. As the sliding plate is pushed back, the release lever turns.
4. As the release lever turns, the 1st transfer roller is pressed against the transfer belt.
[1] Sliding plate
(2) 1st transfer roller release operation
1. Rotation of the Transport motor is transmitted by a gear train to the pressure/release clutch.
2. Drive through the pressure/release clutch rotates the pressure cam a half turn, thus pushing the sliding plate.
3. As the sliding plate is pushed, the release lever turns.
4. As the release lever turns, the 1st transfer roller is released from the transfer belt.
[1] [2]
[3]
[5]
[1]
[2]
[1]
[2]
O THEORY OF OPERATION bizhub C3100P > 6. 1ST TRANSFER
[4]
[2] 1st transfer pressure solenoid (SD1)
[4] 1st transfer pressure sensor (PS17)
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[2] Release lever
O-17
SECTION