Doctor Roller Gap Adjustment - Ricoh PT3 Field Service Manual

4. Replacement and Adjustment
[E]: Drum rear plate ( x 2)
Loosen the screw [F] to take off the drum rear stoppers ( x 1)
[G]: Drum rear flange
4
[H]: Ink roller unit
[I]: Ink roller one-way clutch

Doctor Roller Gap Adjustment

Purpose:
Standard:
Tools:
• Normally the doctor roller gap is not adjusted or changed. It tends to be difficult to change in the field.
If the gap is too narrow, an uneven image may appear on the prints. If it is too wide, too much ink
will be applied to the drum screens, resulting in ink leakage from the drum.
110
To control the ink thickness around the ink roller.
A 0.07mm gauge passes, but a 0.09mm gauge does not.
Thickness gauge