Canon C850 Practical Manual page 141

When Your Printouts Look Like���
Text and images do not print clearly�
White spots like blisters appear�
← Feeding Direction
Problems with Printouts That Look Like the Following Images
Check the Cause and Remedy Below
Cause
There is a high probability that condensation may be
occurring on the photoconductor drum because the
printer is installed in a hot or humid environment�
Remedy
When printing in black and white, increase the
temperature of the photoconductor drum�
→ [Adjustment/Maintenance] → [Adjust Image
Press
Quality] → [Adjust Drum Temperature] → select [High]�
"Adjustment for Image Quality and Finishing
(Calibration)" > "Adjusting Drum Temperature" in the
User's Guide
Cause
Temperature for fixing toner does not match the specific
characteristics of the paper�
Remedy
To improve this situation, adjust the value for <Adjust
Gloss/Fine Black> to match the specific characteristics of
the paper�
→ [Preferences] → [Paper Settings] → [Paper
Press
Type Management Settings] → select the type of paper
you are using that is having this problem → press
[Details/Edit] → [Change] for <Adjust Gloss/Fine Black>
→ adjust the value for [Gloss] toward the minus end�
"Paper Type Management" > "Adjusting the Gloss
and Fine Black" in the User's Guide
imagePRESS C850/C750/C650/C65
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