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DRUM UNIT
DRUM UNIT
[1] Composition
[2] Mechanisms
Mechanism
Carriage supply
PCL
Auxiliary separation
Conveyance auxiliary
Method
Fixed rail
LED
Separation claws
Ratchet wheel
*1
*2
Charging corona unit
Developing unit
PCL
Cleaning unit
Cleaning unit
PCL
Developing unit
Charging
corona unit
Transfer and separation corona unit
Drum
Separation claw solenoid
Separation claws
Drum
TSL
*2: Ratchets
The thick paper conveyance ability has been improved by
the use of five ratchets on the board cover.
Swing block
Swing clutch
Separation
claw
Drum
Separation claw
solenoid (SD4)
Ratchets
The drum unit of this machine is an integral assembly
consisting of the drum, and also the charging corona
unit, developing unit, cleaning unit, toner recycle unit
and the PCL which are installed around the drum.
*1: Auxiliary separation
Three separation claws separate the paper from
the drum and prevent paper jamming. These
claws are pressed against the drum or removed
from it by the ON/OFF operation of the separation
claw solenoid (SD4).
Also, while the swing clutch installed in the swing
block is turning one revolution, the separation
claws slide about 7 mm, preventing a specific part
of the paper from becoming dirty and also prevent-
ing the drum from being scratched.
Board Cover
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