Canon imageCLASS MF3010 VP Multifunction Monochrome Laser Printer - Manual (Page 186)

Toner Smudges and Spatters Appear around Text and
Images
85RS-04A
Try one of the following to solve the problem.
<Cause 1> The paper type loaded is not appropriate.
Solution Make sure that the number of sheets or the paper type loaded in the paper cassette meets the paper
specifications.
" Supported Paper Types(P. 70) "
Troubleshooting
181