Specifications

9-3. PC Drum Charge Corona Wires Cleaning Mechanism/Control
The PC Drum Charge Corona is provided with a mechanism that
automatically cleans its two corona wires. It effectively removes from the
wires any toner and dust particles which would otherwise cause uneven
charging, white streaks on copies, and charge leak.
<Mechanism>
•
When PC Drum Charge Wire Cleaning Motor M21 is energized, its drive
is transmitted to the Screw Shaft. This in turn moves the Cleaner
mounted on the Screw Shaft.
•
M21 is a two-phase stepping motor. The Cleaner is detected at its
standby position (which is the reference position for its cleaning motion)
by Drum Wire Cleaner Home Position Sensor PC54.
•
The Cleaner makes one round trip per each cleaning cycle.
M21
Actuator
Cleaner
PC54
Corona Wires
Screw Shaft
M-31