Canon imageRUNNER ADVANCE C2030 Service Manual page 362

■ Actions to be taken when water drop marks appear on the 2nd
side
[Cause]
After paper passes through the Fixing Assembly, water contained in the paper evaporates,
and the water is accumulated in the Paper Path Guide.
If the accumulated water attaches to the back (2nd side) of the 1st side when the 1st side
passes, the water corrupts the image when the 2nd side is transferred and appears as water
drop marks on the image.
[Condition]
When the 3-Way Unit is installed, in a high temperature and high humidity environment, and
when acclimatized paper (completely hygroscopic paper) is used, the symptom occurs on
the 2nd side of 2-sided printing of the first several sheets immediately after continuous paper
feed of 1-sided 30 sheets.
[Field Remedy]
Select COPIER > OPTION > CUSTOM, and change the value of FAN-POST from 0 to 1, 2,
or 3
The fan is driven and the water drop marks are resolved by configuring this setting.
However, jobs cannot be executed while the fan is driven. ("Printing..." is displayed on the
LUI.)
6
Troubleshooting > Troubleshooting Items > Image Failure > Actions to be taken when water drop marks appear on the 2nd side
F-6-17
6 Troubleshooting > Troubleshooting Items > Image Failure > Actions to be taken when water drop marks appear on the 2nd side
FAN-POST Downtime at execution
0
1 Approx. 15 sec
2 Approx. 30 sec
3 Approx. 60 sec
CAUTION
• High waterdrop alleviation effect can be obtained when 2 or higher is set. Talk with
the user about the down time before deciding the value to be set.
• The down time is the time required after auto adjustment.
6-16
Effect
None
Small
Medium
Large
T-6-10
6-16