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November 2003 © TOSHIBA TEC 11 - 7 e-STUDIO3511/4511 DRUM RELATED SECTION
11
11.6 Charger Wire Cleaner
11.6.1 Operation
This equipment includes an automatic cleaning function with a motor drive to automatically clean off the
toner adhered on the main charger wire. The drive from charger wire cleaner motor is transmitted to the
wire cleaner through the timing belt and the wire cleaner contacted by the main charger wire shuttles
between the both ends of main charger wire. The waiting position (home position) of the wire cleaner is
at the front side. The wire cleaner and main charger wire are not contacted each other at the waiting
position.
The cleaning movement is performed in the cases as follows:
(1) When the power is turned ON
(2) When recovered from the energy saving mode
(3) When opening/closing the front cover
(4) When the specified number of pages has been printed out (default value: 1,000 pages) from the last
cleaning (If the number of pages has reached the setting value during continuous printing, the clean-
ing movement is performed upon the completion of this printing job.)
11.6.2 Construction
(1) Charger wire cleaner motor
This motor is a DC brush motor and supplies the drive to the wire cleaner. When the motor rotates in
reverse, the wire cleaner shifts to the rear side. Also when the motor rotates normally, the wire
cleaner shifts to the front side.
(2) Charger wire cleaner front position detection switch
This switch detects whether the wire cleaner has reached to the front position (home position) or not.
The wire cleaner is always waited at this position except during cleaning movement.
(3) Charger wire cleaner rear position detection switch
This switch detects whether the wire cleaner has reached to the rear position or not. When this
switch is turned ON, the charger wire cleaner motor rotates normally. Then the wire cleaner shifts to
the front position (home position).