Ricoh Pro C901 Technical Bulletin page 331

Reissued: 28th-Sep-12
Model:
AG-P1/C1, AGL-P1/C1, Aries-P1.5/C1.5
2. Correct Procedures for Fastening the Drum Knob
Take note of the information in the following section to avoid the problems listed
below.
1) Different density between left and right sides on a page
2) Toner adhesion to the development rollers
3) Scratches on the drums resulting from toner adhesion to the development rollers
4) Toner clumps caused by narrowed PG
Always pull out the development unit and remove the drum cleaner when fastening the
drum knob.
Never attempt to further fasten the drum knob when the drum cleaning unit is installed.
Do NOT fasten the drum knob when the development unit is installed.
Do NOT fasten the drum knob when the drum cleaning unit is installed.
If the drum knob is loosened with the drum cleaning unit installed, make sure to remove
the drum cleaning unit, and then fasten the knob.
Fastening the drum knob with the drum cleaning unit installed will cause the drum cleaning
unit to apply pressure to the drum and narrow the PG at the front side.
echnical
T B
ulletin
Date:
06-Dec-10
Drum
Knob
Turn
clockwise
to fasten.
Drum Cleaning Unit
PAGE: 4/6
No.:
RG178128c