Print Smudges - Epson WF-C5790 Service Manual

EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a

PRINT SMUDGES

 Symptom
Unexpected smudges can be seen somewhere (including back side) on
printouts.
Figure 4-10. Print smudges
 Cause
 Contamination of Scanner Glass
 Contamination of Glass for ADF scanning
 Curling/waviness of the paper used
 Dirt transferred or foreign objects attached from feed path
 Dirt transferred or foreign objects attached from the printhead
 Dirt transferred from the CR Unit
Troubleshooting Troubleshooting procedure
Revision A
148
Confidential