Canon imageCLASS D1350 - Manual (Page 156)

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Troubleshooting
Toner Smudges and Spatters Appear around Text and Images
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 drawer or multi-purpose tray meets the
paper specifications.
e-Manual → Specifications → Paper → Supported Paper Types
<Cause 2> Due to the paper type (for example, heavy paper) or usage conditions (for example, dry conditions), toner
smudges and spatters appear on the output.
Solution
Change the <Special Mode U> setting to <On> from the operation panel.
e-Manual → Maintenance → Special Mode
* Set this setting to <Off> unless the above mentioned problem occurs.
* The print quality may become lower when this setting is enabled, depending on the paper type used (for example,
thin paper) or usage conditions (humid conditions).
The Bottom Edge of Paper or Following Paper Has Smudge Marks
Perform following procedure.
<Cause> A document with no margins was printed.
Solution 1
Data is printed with a margin of 5 mm (10 mm for envelopes). Provide a margin around the data.
“Printable Area” ( →P. 2-8)
Solution 2
Perform the following procedure in the printer driver.
1. Display the [Finishing] sheet.
2. Click [Advanced Setting].
3. Set [Enlarge Print Area] to [Off].