Canon MP360 User Manual page 127

The paper is creased or curled.
You cannot use paper that is creased. Uncurl the paper, then load it into the multi-purpose tray.
The roller is dirty.
Clean the roller. (See page 113.)
There is some foreign matter in the multi-purpose tray.
Check and remove any foreign matter.
Ink has run low or out.
Check whether the ink tanks are empty. Replace the ink tanks if necessary.
The paper thickness lever is not set correctly.
When the paper thickness lever is set incorrectly and you print or copy documents with large
quantities of ink such as documents with a lot of details, the printout may curl or smudge. Move
the paper thickness lever to the correct position according to the print media type. (See page 16.)
Recommended print media is not used.
Use recommended print media. (See page 16.)
The paper type set from the computer or operation panel of the machine
differs from the type of paper loaded in the multi-purpose tray.
Set to the print media type loaded. (See page 29.)
The print head is dirty.
Clean the print head. (See page 107.)
The machine's interior is dirty.
If the machine's interior is dirty with ink or there is a build-up of paper dust, your printout may
contain ink stains or be smudged. Clean the machine. (See page 112.)
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Chapter 11 Troubleshooting