Black Dots On Image Due To Soiling Of Primary Charging Wire - Canon imageRUNNER ADVANCE 8105 Series Manual

Symptom

Black dots on image due to soiling of Primary Charging Wire

[Case in the field]
Description
The Primary Charging Wire is periodically replaced every 500k sheets but black dots on image due to
soiling occurred on 370k sheets after replacement.
Field Remedy
In the high temperature/high humidity (30 degrees C/80%) environment, replacement should be done at
250k sheets, and therefore it is possible that image failure may occur earlier in some environments.
[Reference] This situation is same with the Primary Charging Wire Cleaner and Primary Charging Wire
Cleaner Holder.
pg. 114