Canon iR Advance 400iF/ 500iF Large curl of paper

[Serviceman]

Models list: Canon imageRUNNER ADVANCE 500iF, 500i, 400i, 400iF
Image Failure: Large curl of paper

Location
Fixing Assembly

Cause
Excess heat from fixing changes moisture content between the front and back of paper, which causes large curl.

Condition
Paper left untouched in a high humidity environment

Field Remedy
• Service mode (Lv.2)> COPIER> OPTION> IMG-FIX> TMP-TBLC> 0 to 3
0: Auto
1: OFF
2: N1 mode with plain paper 1/2 (Target temperature becomes low.)
3: N3 mode with plain paper 1/2 (Target temperature becomes moreover low.)