Service manual

CORONA UNIT SECTION
2-F-1
2 UNIT EXPLANATION
CORONA UNIT SECTION
[1] Composition
[2] Mechanisms
*1 Cleaning the charging wire
The charging corona unit has wire cleaning
pads. The charging wire cleaning pad drive
motor moves the charging wire cleaning pad
back and forth, removing toner and dirt from the
wires.
*2 Cleaning the transfer and separation wires
The transfer and separation corona unit has a
wire cleaner pads. The transfer and separation
wire cleaning pads drive motor moves the trans-
fer and separation wire cleaning pads back and
forth, removing toner and dirt from the wires.
<Charging corona unit>
Charging corona wires
PCL
Charging wire cleaning material
Charging wire cleaning motor
(M23)
<Transfer and separation corona unit>
Transfer entrance
guide plate
Guide rollers
Transfer
corona unit
Separation corona unit
Plunging prevention plate
Mechanism Method
*1 Charging Scorotron (DC negative corona
discharge).
Discharge wire: Tungsten, 0.06
mm dia. (gold-plated skin path:
with automatic wire cleaner).
Grid control: Gold-plated stain-
less plate.
*2 Transfer DC positive corona discharge.
Discharge wire: Oxide film tung-
sten, 0.06 mm dia., with auto-
matic wire cleaner.
Separation AC/DC corona discharge.
Discharge wire: Oxide film tung-
sten, 0.06 mm dia., with auto-
matic wire cleaner.
Charging wire cleaning material
Charging wire
Separation wire cleaning material
material
Transfer wire
Separation wires
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Transfer wire cleaning