Canon LBP-5100 User Manual page 124

7
While holding the lock release lever of the rear paper guide,
slide the guide to the size mark for the loaded envelopes.
8
Hold down the envelopes as shown in the figure, make sure
that the stack does not exceed the load limit marks (A), and
then set it under the hooks (B) on the paper guides.
Make sure that there is sufficient space between the hooks of the paper guides
and the stack of the envelopes. If there is no sufficient space, slightly reduce the
amount of the envelopes.
(B)
(B)
(A)
(A)
Loading Envelopes in the Paper Source
3
(B)
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