Canon imageRUNNER ADVANCE C2030 Service Manual page 357

■ White dots/spots image in whole
Feed direction
[Location]
Primary Charging Roller
[Cause]
1. This failure occurs because toner aggregate inside the machine is adhered on the Primary
Transfer Roller at the time of delivery.
2. This failure occurs because transfer efficiency is decreased if the machine is used with
high CV (1,000 sheets or more per day) every day.
[Condition]
1. This failure occurs when the machine is moved (vibrated) while the life of the Drum Unit is
close to the end and toner aggregate exists inside the machine
2. This failure occurs on solid black when the machine is used with high CV (1,000 sheets or
more per day) every day.
[Field Remedy]
When this failure occurs at the time of delivery
Execute the following service mode to eject the deteriorated toner.
COPIER > FUNCTION > CLEANING > TBLT-CLN <LEVEL1>
If a user moves the machine by himself/herself and inquires regarding the image failure, this
symptom can be solved by copying a blank image on approx. 10 sheets of paper.
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Troubleshooting > Troubleshooting Items > Image Failure > White dots/spots image in whole
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6 Troubleshooting > Troubleshooting Items > Image Failure > White dots/spots image in whole
When this failure occurs with high CV environment
Execute the following service mode to eject the deteriorated toner.
COPIER > FUNCTION > CLEANING > TBLT-CLN <LEVEL1>
This failure can be prevented by checking the frequency of user usage and then changing the
following service mode to change the interval of brush discharge control. However, be sure
to get approval from the user in advance that productivity is decreased when executing this
service mode.
COPIER > OPTION > IMG-LSR > PR-SUBBR <LEVEL2>
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