Troubleshooting Items; List Of Troubleshooting Items; Image Failure; Toner Soiling At The Back Side Of Paper - Canon imageRUNNER 1750 Series Service Manual

Troubleshooting items

List of Troubleshooting Items

Category
Image Failure Soiling

Toner soiling at the back side of paper

Soiling at the leading/trailing edge of paper

Toner bleed/white Poor transfer of the image, hollow character
spot
Image smear/toner bleed/condensation
Operation Paper jam Large curl of paper
failure
Jam of thin paper (63g/cm2 or lighter)
Jam of paper with solid image when the leading
edge margin is small (1 to 4mm)
Failure in setting The toner bottle set lever cannot be operated
or is hard to operate.
Abnormal noise Abnormal noise at pickup from Multi-purpose
Tray

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)
6
Troubleshooting > Troubleshooting items > Image Failure > Soiling at the leading/trailing edge of paper
Item Reference
6-1
6-1
6-1
6-1
6-2
6-2
6-2
6-2
6-3
F-6-6
6 Troubleshooting > Troubleshooting items > Image Failure > Soiling at the leading/trailing edge of paper
[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
T-6-9
Transfer Roller: user mode > Cleaning/Adjustment > Transfer Cleaning
■ Soiling at the leading/trailing edge of paper
[Location]
Pre-transfer Guide,
Fixing Inlet Guide
6-7
F-6-7
6-7