Ricoh C211 Service Manual page 693

SUBJECT: UNEVEN IMAGE DENSITY
SYMPTOM:
Uneven image density may occur until 15 to 20 copies are produced and/or the following:
idling process does not increase the image density of the low density area.
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insufficient ink supplied to the master in the low density area.
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CAUSE:
The
doctor roller is too close to the ink roller causing an insufficient supply of ink to the drum surface.
SOLUTION:
Adjust the clearance between the ink roller and the doctor roller to the specification standard of 0.08mm. This may
be accomplished by following the procedure below.
ADJUSTING PROCEDURE:
1. Remove the ink cartridge from the drum unit.
2. Disable the ink detection as follows:
A) Remove the rear cover.
B) Disconnect the two (2) pin connector "CNSOl" on the ink detection board and connect a jumper wire to the
two (2) pins as illustrated below.
C) Set the DIP Switch "SWBol" to the down position.
RJCOH CORPORATION
GROUP . 155 F'assa~c Avenue. Fa!rfield. NJ OX06 . 201/882-2000
BULLETIN NO.
-Jumper Wire
Fax
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DATE l-lo-99
Continued. .