Canon LBP-1760 User Manual page 51

3
Flex the stack on all four sides to remove any stiffness. Check all corners. If the
corners are curled, straighten them.
Be sure to flatten out the leading edges of the envelopes if they are curled
downwards. Otherwise a paper jam may occur.
4
Correct any dog-eared corners, then align the edges of the stack of envelopes by
tapping them on a flat surface.
Printing Envelopes with the Multi-Purpose Tray
2
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