Canon C5051 User Manual page 29

3
Pull and lift the paper drawer out of the machine by holding its left and right sides with both hands .
4
Remove the envelopes that are loaded in the paper drawer (several envelopes at a time) .
5
Slide the left guide to align it with the mark for the desired paper size .
6
Loosen the two screws fixing the front width guide of the envelope feeder attachment .
Left Guide
Envelope Feeder Attachment-D1 (Optional)
1
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