Oki OKIOFFICE84, Maintenance Manual

Page: 123 / 519

3 - 3 40672201TH Rev. 4
Process Illustration Description
EP drum
Transfer roller
Paper
Power
supply
Power
supply
Cleaning roller
EP drum
Transfer roller
Back-up roller
Paper
Heater roller
Heater
Transfer
4
Cleaning
6
Fusing
5
The recording paper is placed over the
Image drum surface and a positive
charge, opposite in polarity to the
toner, is applied to the reverse side of
the paper from the transfer roller. The
toner is attracted by the positive charge
and is transferred to the paper. The
toner charged negative that is attracted
to the Image drum surface is trans-
ferred to the upper side of the record-
ing paper by the positive charge on the
lower side of the paper.
The unfused toner image is fused on
the paper under heat and pressure as it
passes between the heater roller and
the back-up roller.
Residual toner on the Image drum is
attracted to the cleaning roller tempo-
rarily by static electricity on the Image
drum surface.