Canon 1730, Service Manual

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Troubleshooting > Troubleshooting items > Image Failure > Soiling at the leading/trailing edge of paper
Troubleshooting > Troubleshooting items > Image Failure > Soiling at the leading/trailing edge of paper
Troubleshooting items
List of Troubleshooting Items
Category Item Reference
Image Failure Soiling Toner soiling at the back side of paper 6-1
Soiling at the leading/trailing edge of paper 6-1
Toner bleed/white
spot
Poor transfer of the image, hollow character 6-1
Image smear/toner bleed/condensation 6-1
Operation
failure
Paper jam Large curl of paper 6-2
Jam of thin paper (63g/cm2 or lighter) 6-2
Jam of paper with solid image when the leading
edge margin is small (1 to 4mm)
6-2
Failure in setting The toner bottle set lever cannot be operated
or is hard to operate.
6-2
Abnormal noise Abnormal noise at pickup from Multi-purpose
Tray
6-3
Image Failure
■ Toner soiling at the back side of paper
[Location]
Fixing Assembly (circumference of Pressure Roller: iR2545/2535: 94mm, iR2530/2525/2520:
78.5mm)
Transfer Roller (roller circumference: 50mm)
T-6-9
F-6-6
[Cause]
Fixing Assembly: Toner on the paper comes off and adheres to the Pressure Roller, and then
the toner adheres to the back side of the paper.
Transfer Roller: Toner remains on the Drum that has stopped at the time of paper jam,
and then the residual toner on the Drum adheres to the Transfer Roller during a recovery
operation.
[Condition]
Fixing Assembly: Under conditions that causes poor fixing performance, such as low
temperature environment, or when feeding a large number of sheets of halftone image. Or
the Fixing Unit comes to the end of its life for replacement.
Transfer Roller: When a paper jam occurs. Or the Transfer Roller comes to the end of its life
for replacement
[Field Remedy]
Fixing Assembly: user mode > Cleaning/Adjustment > Fixing Assembly Cleaning
Transfer Roller: user mode > Cleaning/Adjustment > Transfer Cleaning
■
Soiling at the leading/trailing edge of paper
[Location]
Pre-transfer Guide,
Fixing Inlet Guide
F-6-7