Canon C850 Practical Manual page 143

When Your Printouts Look Like���
Yellow does not appear yellow�
Problems with Printouts That Look Like the Following Images
Check the Cause and Remedy Below
Cause
The residue of other colors of toner has accumulated on
the intermediate transfer belt�
Remedy
This phenomenon may occur if the toner does not fully
fix to the paper you are using�
• To improve this situation, adjust the value for <Adj�
Secondary Transfer Volt�> 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 <Adj� Secondary
Transfer Volt�> → adjust the voltage value toward the
minus end�
"Paper Type Management" > "Adjusting the
Secondary Transfer Voltage" in the User's Guide
• To improve this situation, adjust the value for
<Adjust ITB Image Clearing> to match the specific
characteristics of the paper�
→ [Preferences] → [Paper Settings] →
Press
[Paper Type Management Settings] → select the type
of paper you are using that is having this problem
→ press [Details/Edit] → [Change] for <Adjust ITB
Image Clearing> → adjust the image clear level to
increase the precision of automatic cleaning of the
intermediate transfer belt�
"Paper Type Management" > "Adjusting the Image
Clear Level of the ITB (Intermediate Transfer Belt)"
in the User's Guide
imagePRESS C850/C750/C650/C65
141