Ricoh Pro C7200S Troubleshooting Manual page 581

Bands
Banding (General)
Uneven density occurs due to different pitch phases of the charge roller, development roller, paper
transfer roller, and drum.
Solution
1.
Check the counter of PM parts around the drum (photoconductor unit), and then replace parts for
which the counter has been exceeded.
2.
In "Adjustment Settings for Operators", execute "0501-01: Execute Process Adjustment" (SP3-020-
001).
3.
Print the target image. Is the printed image acceptable?
YES: Finish
NO: Go to next step
4.
Execute [All Colors] in "0506: [Execute Developer Refreshing]" (SP3-062-001).
5.
Print the target image. Is the printed image acceptable?
YES: Finish
NO: Go to next step
6. Check the interval (pitch) of the uneven density.
Prepare a monochrome halftone image, and then print it for each color.
7.
Check the sample sheets that you printed in Step 6, and then take measures according to the table
below.
Pitch
(Problem Unit)
40 mm
(Charge Roller)
52 mm, 26 mm
(Development
1. Clean the charge roller. (Wipe the charge roller with a damped cloth, and
then wipe it with a dry cloth)
Never use alcohol to clean.
2. Execute "0501 [Execute Process Adjustment]" (SP3-020-001).
3. Execute "0201-02 [Execute Image Quality Adjustment: Density Difference:
With Fd]" (SP3-011-012), and then check the output image.
1. Execute "0201-02 [Execute Image Quality Adjustment: Density Difference:
With Fd]" (SP3-011-012), and then check the output image.
9.Image Quality Problem: Lines
Measures
577