Canon imageRUNNER Advance 4235

Scattered image at center

Occurrence area

Pre-registration guide (Static eliminator)

Cause

An image is scattered by paper dust stuck on the static eliminator of the pre-registration guide.

Occurrence condition

(A lump of) paper dust is stuck on the static eliminator of the pre-registration guide.

Remedy

Cleaning of the static eliminator of the pre-registration transfer guide
1) Remove the right cover.
2) Lightly tap a contaminated part of the static eliminator to remove the paper dust.

Paper Reverse Side Stained with Toner

Occurrence area

Fixing assembly (circumference of the roller: approx.94mm)
Transfer roller (circumference: approx.50mm)

Cause

Fixing assembly: Toner came off the paper sticks to the pressure roller, and then the toner sticks to the reverse side of the paper. Transfer roller: Toner remained on the drum that had stopped at occurrence of a jam. During the recovery operation performed later, the toner sticks to the transfer roller.

Occurrence condition

Fixing assembly: When fixing ability is poor due to low temperature, a halftone image has been printed on a lot of sheets of paper, or the time for replacement of the transfer unit is near Transfer roller: When a paper jam has occurred or the time for replacement of the transfer roller is near.

Remedy

Fixing assembly: Service mode(Lv.2)> COPIER> FUNCTION> CLEANING> FIX-CLN> OK
Transfer Roller: Service mode(Lv.2)> COPIER> FUNCTION> CLEANING> TR-CLN> OK