Copy Process - Sharp SF-2220 Service Manual

(4) Copy process

This model basic process and structure
•
The Scorotron method is used to evenly charge the photoconduc-
tor surface to the given potential in the charge process. The co-
rona wire regularly used is now replaced with a new corona charge
mechanism that employs the 0.1mm thick stainless steel saw teeth
plate, in order to suppress ozone generated when the oxide mole-
cule in air is ionized.
•
Considering the service efficiency, the process separation mecha-
nism is adopted.
•
To prevent high voltage leakage by the loose corona charge unit, a
one-touch stopper mechanism is adopted.
Proccess
unit
Stirring roller
DV drive unit
MG roller
PS roller
Multi manual
insertion paper
feed unit
(Option)
Transport
roller(upper)
Transport
roller(lower)
Paper feed
Paper feed
rive unit
unit
Paper feed
unit
(1) Photoconductor
•
This model uses OPC (organic photoconductor) as photoconduc-
tive material. (φ50 mm)
OPC layer
Main motor
Main drive unit
Fuser unit
Cleaner Transport
unit unit
Paper exit
roller
CTL (Electric charge moving layer)
CGL (Electric charge generating layer)
Aluminum layer
5 – 8