Canon imageRUNNER Advance 400

Poor transfer of the image, hollow character

Location

Transfer Roller (roller circumference: 50mm)

Cause

• Because of insufficient transfer output due to highly-resistive paper caused by reduced moisture content in paper by having the paper left untouched in a low humidity environment
• Because of insufficient transfer output due to highly-resistive paper caused by increased moisture content in paper by having the paper left untouched in a high humidity environment

Condition

• Paper left untouched in a low humidity environment
• Paper left untouched in a high humidity environment

Field Remedy

• Service mode (Lv.2)> COPIER> OPTION> IMG-TR> TROPT-SW> -2 to 1
-2: Transfer output voltage moreover decreases.
-1: Transfer output voltage decreases.
0: OFF
1: Transfer output voltage increases.

Image smear/toner bleed/condensation

Location

Photosensitive Drum (circumference:94mm)

Cause

Discharge products generated from the Charging Roller adhere to the Drum, attract water molecules and cause low resistance, which loses the ability to create the desired latent image, resulting in bleed text image.

Condition

The first operation in the day under a high temperature and high humidity environment.

Field Remedy

• Service mode (Lv.2)> COPIER> OPTION> ENV-SET> IMG-BLD1> 0 to 3
  0: OFF
  1: Extend warm-up rotation for 60 seconds
  2: Extend for 120 seconds
  3: Extend for 240 seconds
• When "1-3" under "Service mode(Lv.2)> COPIER> OPTION> ENV-SET> IMG-BLD1" are set, the item is displayed in the user mode. Only setting value "2" can work in the user. [Settings/Registration]> [Adjustment/Maintenance]> [Clean Drum]> [Start]
• Install an option Drum Heater