Ricoh G031, Service Manual

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IMAGE TRANSFER AND PAPER SEPARATION
G031/G032 2-16 SM
2.4 IMAGE TRANSFER AND PAPER SEPARATION
2.4.1 OVERVIEW
The machine uses a transfer roller [A] which touches the surface of the drum [B].
The high voltage supply unit supplies a positive current to the transfer roller. A
feedback circuit inside the machine automatically keeps the transfer current
constant.
The transfer current depends on the paper size. For A3/11” x 17” paper in the
G031, 7
µ
A is supplied, and for A4/LT paper in the G032, 6
µ
A is supplied (for 600
dpi resolution in both of these cases).
The transfer roller attracts the toner from the drum onto the paper.
Drive from the drum through a gear drives the transfer roller.
The discharge plate [C] and the curvature of the drum helps the paper to separate
from the drum. The discharge plate is connected to ground.
G031D513.WMF
[B]
[C]
[A]