Canon PIXMA iP 3300 User Manual page 138

Press firmly on the Rear Cover until it is fit
squarely in the rear of the printer. If the Rear
Cover is not reattached properly, paper may not
be fed properly and cause paper jams.
Inside of the When performing duplex printing, if the inside of
printer is the printer is stained with excess ink, printed
dirty. paper may become smudged.
Follow the procedure below to clean the inside of
the printer.
rear of the printer and press on the lever to
reattach the Rear Cover.
Important
(1) Make sure that the printer is turned on,
and then remove any paper from the Auto
Sheet Feeder.
(2) Open the Front Feeder and extend the
Paper Output Support.
(3)
Fold a sheet of A4 or Letter-sized plain
paper in half widthwise, and then unfold it.
(4) Load this sheet of paper in the Auto
Sheet Feeder with the open side to the front.
Set the Paper Thickness Lever to the left.
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