Canon imageRUNNER ADVANCE C2030 Service Manual page 358

■ Solid image on the 2nd side and magenta spots on the trailing
edge of paper
[Location]
Secondary Transfer Roller
[Cause]
When the trailing edge of paper passes through the Secondary Transfer Roller, the contact
point with the roller has the following 2 areas: paper presence and paper absence. In dry
environment, a resistance difference occurs between these 2 areas (paper presence and
paper absence), and a current is more likely to flow to the area of paper absence. Usually, if
there is an enough margin on the trailing edge of paper, the current difference does not affect
on the image, but if the margin is extremely narrow (1.0 to 1.2mm), a transfer failure may
occur.
[Condition]
This failure occurs when printing a solid image on both sides including magenta in the normal
temperature and low humidity environment.
This failure occurs when the setting value of margin is extremely narrow (1.0 to 1.2mm).
[Field Remedy]
Adjust the margin on the trailing edge of paper. (COPIER>Adjust>BLANK>BLANK-B)<Level1>
Set the service mode setting value to "36" or higher.
6
Troubleshooting > Troubleshooting Items > Image Failure > Solid image on the 2nd side and magenta spots on the trailing edge of paper
Feed direction
F-6-9
6 Troubleshooting > Troubleshooting Items > Image Failure > Solid image on the 2nd side and magenta spots on the trailing edge of paper
(As this service mode is increased by 1, the margin on the trailing edge of paper changes by
0.0423mm. Be sure to have 1.5mm or longer margin on the trailing edge.)
If the symptom still occurs, increase the setting value by 1 and check the image.
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