Canon iR C3200 Series, Руководство по обслуживанию

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Chapter 16
16-55
be moved 1mm toward the delivery (rear) side In service mode no 6 SCANNER>7.CCD>>Parameter 018(xxx)
If you implement the procedure above mentioned, the position is moved 1mm forward, and then increase the
following value by 10 from the factory setting so that the leading registration can be adjusted by 1mm. In service
mode NO 6 SCANNER>7 CCD>Parameter 024(xxx).
If damage appears on the image by implementing the process above, we suggest that you chaange those setting
to default setting.
16.3.2.8.3 Vertical streaks of charging roller: when the drum unit has been in use for a long time
0002-3465
Symptom
Vertical lines (charging roller) occur when the drum unit has been in use for a long time.
Cause
Toner sticks to the charging roller, thus soiling it.
Field Remedy
Replace the drum unit of the color in question. (Generate a 16-gradation test pattern (TYPE=4) to identify the
color.
16.3.2.8.4 Vertical streaks
0002-3470
Symptom
Vertical lines occur.
Cause
The while plate/mirror of the reader unit is soiled. The copyboard glass is soiled with foreign matter.
Field Remedy
Clean the white plate/mirror with lint-free paper moistened with alcohol.
16.3.2.8.5 Back of paper soiled: first in the morning after generating a double-sided print of a
halftone image in Bk as the last job of the previous day
0002-3471
Symptom
The back of a print made after power-on (e.g., for the first time in the morning) is soiled after making a double-
sided print of a halftone image in Bk as the last job of the previous day.
Cause
The surface temperature of the fixing roller has grown too high causing toner to move from paper to the fixing
roller; the toner then moves to the surface of the pressure roller, soiling the back of the 1st print made for the
first time when the power is turned on the next time.