18-8.2Nd Image Transfer Roller Pressure/Retraction Mechanism - Minolta CF1501 Service Manual

18-8. 2nd Image Transfer Roller Pressure/Retraction Mechanism
• The 2nd Image Transfer Roller is pressed against, and retracted from, the Transfer Belt
by a clutch.
• The pressed position is detected by the 2nd Image Transfer Pressure Position Sensor.
• The retracted position is where the cam turns a half turn with the clutch energized.
ON
Drive Roller
2nd Image Transfer
Roller
Main Motor (M13)
2nd Image Transfer Pressure
/Retraction Clutch (CL15)
2nd Image Transfer Pressure
Position Sensor (PC23)
Controlled Part
CL15
Controlled Part
PC23
2nd Image Transfer Pressure/Retraction Clutch (CL15)
2nd Image Transfer Pressure
Position Sensor (PC23)
4004M036AB
When Retracted
4004M039AA
Cam
Start key ON
ON
OFF
Pressed
ON
OFF
H
L
Control Signal Energized
PJ14I-9A
Control Signal Blocked
PJ14I-6B
M-75
2nd Image Transfer Roller
When Pressed
4004M040AA
Paper moves past
2nd Image Transfer Roller
Retracted
Deenergized WIRING DIAGRAM
L H
Unblocked
H L
4004M037AB
4004M075CA
6-E
WIRING DIAGRAM
6-F