Toshiba e-STUDIO163 Service Manual page 57

6) Transfer
Transfer is the process of transferring the toner image (visible image) formed on the drum surface
onto paper.
Method: A paper passing the side of the drum is
charged to the opposite polarity to the that of
toner by the corona discharge of the transfer
charger.
The toner moves from the drum surface onto
the paper.
- For smooth transfer
In the transfer bias processing of this equipment, bias voltage (+600 VDC) is applied to the regis-
tration roller and transfer unit transport guide to prevent the charge produced by the transfer
charger from flowing into the transfer unit transport guide through the paper.
Output is controlled as follows to realizes the desirable transfability.
Paper position against transfer point
From leading edge to 11 mm from leading edge
From 11 mm from leading edge to 5 mm from trailing edge
From 5 mm from trailing edge to trailing edge
December 2005 © TOSHIBA TEC
Drum rotation
Toner
Fig. 3-16
3 - 9
Drum
Fig. 3-15
Transfer output
(H) 418 µADC
(C) 445 µADC
(L) 310 µADC
Direction of
transportation
Transfer charger
e-STUDIO163/203 COPY PROCESS
3
Paper
Transfer
charger