2 - K - 1
CLEANING/TONER RECYCLE UNIT
Mechanism
Drum cleaning
Toner recycle
Toner collection
CLEANING/TONER RECYCLE UNIT
[1] Composition
[2] Mechanisms
3. Once the drum has been coated with setting powder,
carry out the following work before installing the drum
unit on the main body.
1) To ensure that the toner density is correct, before
installing the drum to the drum unit, discharge the
surface of γ detection sensor and the Dmax sensor
on the control board by using a piece of cloth
moistened with alcohol, thus preventing toner
from adhering to the sensors.
2) After installing the drum to the drum unit,with the
charging corona unit and the developing unit re-
moved, insert the centering jigs into both sides of
the drum, then turn the drum one revolution. This
prevents setting powder from scattering onto the
charging corona unit and also prevents image
defects.
4. Take care that the blade spacer mounted on the
cleaning blade shaft at the back does not drop out.
Cleaning blade
Toner conveyance
screw
Toner guide
roller
Toner recycle screw
Method
Cleaning blade
(weight type)
Screw conveyance to the
developing unit
(Weight load application method)
Toner guide roller
[3] Disassembly and Re-assembly
1. Removing and Re-installing the Cleaning Blade
Caution: Be sure that the power cord has been unplugged
from the power outlet.
Caution:
1. Do not touch the edge of the cleaning blade with bare
hands.
2. When installing the drum, cleaning blade and
toner
guide roller
, coat the entire surface of the drum and
also the cleaning blade with setting powder, regardless
of whether the drum and cleaning blade are new or old
type parts. Also, apply toner to both edges of the
cleaning blade.
Toner conveyance screw
Cleaning blade
CLEANING/TONER RECYCLE UNIT-1
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