Canon C850 Practical Manual page 139

When Your Printouts Look Like���
When printing on coated paper, uneven
glossiness that looks like rain fall appears
on the leading edge of the image�
← Feeding Direction
Problems with Printouts That Look Like the Following Images
Check the Cause and Remedy Below
Cause
The toner cannot fix to the paper because too much
water vapor is evaporating from the surface of the paper�
Remedy
• Locate the machine in a room that has consistent
and suitable temperature and humidity�
Keep the paper in the same environment as
that where the machine is located� For the
appropriate temperature and humidity, see the
Installation and Operating Environment Guidelines or the
Specialty Media Handling Guide�
• 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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