■ Dirt on front
The front of page is dirty.
Cause
Solution
1) The print media is dirty
Replace the print media to new one. Advice the customer on how
to store the print media.
2) Dirt on leading edge of image (Multi-purpose Tray Pickup Roller) Clean the Multi-purpose Tray Pickup Roller. If the dirt does not
come off, replace the roller.
3) Repetitive dirt (Registration Slave Roller, Fixing Film Unit unit or
cartridge)
See "Repetitive image defects ruler" to identify the dirty roller. Clean
the dirty part. If the dirt does not come off, replace the part.
4) The Delivery Roller is dirty
Clean the Delivery Roller.
■ Dropouts
Dropout appears in image
Cause
Solution
1) The Transfer Roller is dirty or deformed
Replace the Transfer Roller.
2) Contact failure between the contact point of the machine and the car-
tridge
Clean the contact if dirty.
3) The Photosensitive Drum, Primary Charging Roller or Developing
Roller is defective
Replace the cartridge.
4) Scratches or foreign substance on the Fixing Film Unit
Replace the Fixing Assembly.
5) The High-Voltage Power Supply is defective
Replace the Engine Controller.
■ Vertical white lines
Vertical white line appears in image
5. Troubleshooting
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