Canon i 850 - Manual (Page 134)

Print Quality is Poor or Contains Errors 134
Troubleshooting
Macintosh
1
Open the Page Setup dialog box.
2
Click the Utilities button.
3
Select Custom Settings form the pull-down menu.
4
Select Pause between pages., and then click Send.
■ You may need to clean some internal parts of the printer. Follow the procedure
below.
1
Load sheets of A4 or Letter plain paper in the printer.
2
Hold down the RESUME/CANCEL button until the POWER lamp flashes
three times, and release the button.
3
Repeat this operation until there are no more smudges on the test page.