Pc Drum Charge Corona Wire Cleaning Mechanism - Minolta CF910 Service Manual

1154SBM0802A
8-2.

PC Drum Charge Corona Wire Cleaning Mechanism

<Mechanism>
• Rotation of PC Drum Charge Wire Cleaning Motor M3 turns the screw shaft, which
moves the cleaner mounted on the screw shaft to clean the corona wire.
• Charge Cleaner Home Position Sensor PC16 and Charge Cleaner Return Position Sen-
sor PC17 detect the point at which the direction of M3 rotation is switched from forward
to backward, or vice versa, and at which M3 is stationary, thereby moving or stopping the
cleaner.
Cleaning Conditions
• Power Switch S1 is turned ON.
• The Front Door is opened and closed.
• The EP-NET remote control PC Drum Charge Corona wire cleaning command is
received in standby state.
• At the end of a multi-copy cycle making 100 copies
Cleaner
Charge Corona Wire
Screw Shaft
<Control>
Control Signal
PWB-I PJ3I-5B
M3
PWB-I PJ3I-4B
Control Signal
PC16 PWB-I PJ8I-10B
PC17 PWB-I PJ8I-9B
PC16
PC17
M3
(Forward Rotation)
M3
(Backward Rotation)
M3
1154M026AD
Forward
Rotation
L
H
Home Position
Cleaning Conditions Met
H
L
H
L
ON
OFF
ON
OFF
PC17
Screw Shaft
Backward
Rotation
H
L
Return Position
L
H
Approx. 0.1 sec. Approx.1 sec.
Approx. 0.1 sec.
M-20
Cleaner
PC16
1154M071AC
Stop Wiring Diagram
H
15-D
H
Wiring Diagram
H 14-F
L 14-F
Approx. 0.1 sec. Approx.1 sec.
1154T22MCB