Canon iR Advance 4235i
Troubleshooting. Image Faults 2
Stained Leading / Trailing Edge of Paper
Occurrence area
Transfer front guide
Fixing inlet guide
Cause
Transfer front guide: The leading or trailing edge of paper touches the toner stuck to the transfer front upper guide. Fixing inlet guide: The leading or trailing edge of paper touches the toner stuck to the fixing inlet guide.
Occurrence condition
When halftone or solid-black images are printed in succession
Remedy
Using lens-cleaning paper or the like, clean the guide stained with toner.
Image Transfer Wrong / Text Void
Occurrence area
Transfer roller (circumference: 50mm)
Cause
Resistance of paper increases due to reduction in paper water content, resulting in insufficient transfer output.
Resistance of paper decreases due to increase in paper water content, resulting in excessive transfer output.
Occurrence condition
Paper left alone in a low-humidity environment
Paper left alone in a high-humidity environment
Remedy
• Service mode (Lv.2)> COPIER> OPTION> IMG-TR> TROPT-SW> -2 to 1
-2/-1: Transfer output voltage decreases.
0: OFF
1: Transfer output voltage increases.
Image Deletion / Blur / Dew Condensation
Occurrence area
Drum (circumference: 94mm)
Cause
Corona products generated on the charging roller stick to the drum, and then water molecules adsorb onto them, resulting in reduction in resistance. Therefore, a desired latent image cannot be formed, resulting in a blurred image.
Occurrence condition
When the machine is operated first in the morning under the high-temperature and high humidity environment.
Remedy
• Service mode (Lv.2)> COPIER> OPTION> ENV-SET> IMG-BLD1> 1 to 3
0: OFF
1: Two minutes extension in the initial rotation
2: Four minutes extension in the initial rotation
3: Six minutes extension in the initial rotation
• Install the optional drum heater.