Ricoh V-C3 D081, Field Service Manual, Page: 514 / 1092

We recommend that you do the forced MUSIC adjustment at the customer location immediately after
installation, or after servicing or adjusting any parts or components of the following units:
• Around the drum
• ITB unit (especially after belt replacement)
• Paper Transfer Roller
• Laser unit
Adjustment of Line Speed for Thick Paper
Adjust the line speed of the fusing unit (the speed of the K development motor) when:
• Color shift corrected with the line position adjustment.
• Color registration shifts more at the trailing edge than at the leading edge.
Color Registration Test and Error Adjustment
Before you start this procedure, make sure that the exposure glass is clean. Also, make sure that the ITB is
installed correctly, especially at the edge.
1. Load A3/DLT paper and select full-color (FC) mode.
2. Start SP2109 002 and select Pattern #1 (1: Grid pattern), and then touch "OK".
3. Push the "Copy Window" button. Then select A3/DLT paper, and push the "Start" button to print the
pattern. Make sure that "Full Color Mode" is selected before you push the Start button.
4. Look at the printout. The horizontal and vertical lines must show no color (must be black). In that
condition, the K, C, M, and Y images are deposited exactly on top of each other.
5. If there is color on the printout, there is a color registration error, and we must correct the problem.
To correct the problem, do the MUSIC process with SP2111 001. This takes about 50 seconds.
6. Do step 2 again.
7. If there are color registration errors, then do the procedure described in the Troubleshooting section
"Color Registration Error Adjustments"
Skew Adjustment After Laser Unit Replacement
To Print the Trim Pattern:
1. Do SP2109 002 (Test Pattern - Select Pattern) and select pattern 10.
2. Touch [Execute] on the display.
3. Touch [Copy Screen] on the display to switch to the normal copier screen.
4. Select the paper size and color then press the [Start] key to print the pattern.
4. Replacement and Adjustments
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