Canon imagePRESS C10000VPSeries Troubleshooting Manual page 47

7) Output the image having shown the symptom, and check that the symptom does not occur.
If the improvement of the symptom is insufficient, follow the step 8).
8) Service Mode (level 2) > Mode List > COPIER > Option > IMG-TR > "2TRSPADJ" is changed to "3".
The setting range is from "-3" to "+3" ("0" by default).
Changing this setting will accelerate the speed of the secondary transfer belt.
[CAUTION] Vertical scanning magnification ratio slightly becomes larger.
If adjustment is required, refer to Service Manual > Adjustment > "Vertical Scanning Magnification Ratio Adjustment".
9) Output the image having shown the symptom, and check that the symptom does not occur.
If the symptom does not improve, then check other factors.
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