Doctor Roller Clearance Adjustment - Ricoh C226 Service Manual

9.8 DOCTOR ROLLER CLEARANCE ADJUSTMENT

[B]
Purpose: To equalize the ink thickness around the ink roller and prevent
uneven image.
1. Remove the drum unit.
2. Remove the master clamper.
3. Remove tetron screen and the metal screens from the drum unit.
4. Wipe off the ink around the ink roller and the doctor roller.
5. Insert a 0.08-mm gap gauge between the doctor roller and the ink roller.
Then Ensure that a 0.1-mm gauge can not penetrate the gap.
NOTE: Check the gap at the right, center, and left positions.
6. If the gap is not within specifications, loosen the screws [A] on both sides
and adjust the gap by turning the eccentric bushings [B] on both sides.
NOTE: Before adjustment, remove the drive gear located on the
operation side of the doctor roller as the drive gear restricts the
adjustment.
C226
0.08 mm
[A]
5-54
DRUM SECTION
SM