Ricoh pro c901 - Page 463

Technical Bulletin PAGE: 11/75
Reissued:21-Apr-14
Model: Aries-P1.5/C1.5
Date: 10-Mar-14
No.: RM077107b
3. Troubleshooting uneven density & mottled effect
Excerpt from RTB RM077077b
Cause
Solution
Side effect
Paper with rough surface
causes unstable electric field
in the toner transfer process.
Image
processing
Calibration
None
Screening setting
Reduced image resolution
Toner degradation
Engine
setting
Toner refresh
amount
Toner yield will decrease if
average coverage is 4% or lower
ACS switch setting
Productivity will slightly
decreased by switching the
print mode.
In detail
- Rough surfaced paper; unstable electric field -
Unstable electric field
Toner transfer on rough surfaced paper
Result
Partial image deletion;
unprinted spots
Stable electric field
ITB
Copier paper
Toner
Toner transfer on smooth surfaced paper
Result
Toner is successfully
transferred to paper;
no blank areas.