Read Sharp AR-651 (serv.man7) Service Manual online
AR-651/810 COPY PROCESS 3 - 7
Combined use of transfer belt and
separation finger
To prevent the copy paper from failing to
be separated during the operation, due to
incomplete transfer belt charging or
absorption of moisture, and thus jamming
up the cleaner, a separation finger
mechanically separates any copy paper
which fails to be separated.
(6) Transfer/Separation
Transfer:
Transfer is a process of transferring the toner image
(visible image) formed on the drum surface onto the
paper.
An electric charge applied by the high voltage power
supply flows to the transfer belt from the power
supply roller. Then it flows to the paper and OPC
drum. The toner, which has been developed on the
drum's surface, is transferred to the paper by elec-
trostatic attraction.
Separation:
The paper is held to the belt and separated from the
drum by the electrostatic attraction acting between
the belt (plus charge) and the polarization charge
(minus charge) on the bottom surface of the paper.
Drum
Paper
Transfer
belt
belt
Rotation of drum
Transfer belt
Paper movement
Separation finger
Reference
•
Drum
E
Toner
Transfer belt
Power supply roller
Paper
Aluminum conductive base
OPC layer
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