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CORONA UNIT SECTION
[1] Composition
<Charging corona unit>
Charging corona wires
Charging wire cleaning motor
(M23)
Charging wire cleaning material
[2] Mechanisms
Mechanism
*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.
*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.
PCL
Plunging prevention plate
Method
2-F-1
CORONA UNIT SECTION
<Transfer and separation corona unit>
Transfer entrance
guide plate
Guide rollers
Separation corona unit
Charging wire cleaning material
Charging wire
*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.
Transfer wire cleaning
material
Separation wire cleaning material
Transfer
corona unit
Transfer wire
Separation wires
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