Cleaning Blade Replacement - Ricoh FT6645 Manual

23 April 1993

4.5 CLEANING BLADE REPLACEMENT

[C]
1. Remove the OPC drum. (Refer to Drum Unit Removal and OPC Drum
Replacement.)
2. Remove the cleaning blade [A] (2 screws).
3. Clean the entrance seal [B], side seals [C] and cleaning brush [D].
NOTE: When a vacuum cleaner is used, to protect the electrical parts
from static electricity, disconnect the connector on the charge
power pack and remove the ID sensor as follows:
1) Disconnect the 12P connector on the charge power pack [E].
2) Remove the screw [F] and separate the upper and the lower drum
units.
3) Remove the pick-off pawl bracket [G] (2 screws).
4) Disconnect the connector [H].
5) While turning the bracket counterclockwise (front view), slide the
pick-off pawl bracket to the rear.
4. Install the new cleaning blade.
NOTE: Do not clean the edge of the cleaning blade with cloth, otherwise
it damages the edge and causes black lines on copy images.
Do not touch the edge of the new cleaning blade, if some setting
powder or toner on the blade edge is removed, apply toner there.
When installing the cleaning blade, do not pinch the side seals.
[A]
[C]
[D]
[B]
[F]
5-53
DRUM UNIT
[G]
[H]
[E]