Oki ES3640E User Manual page 37

Using the stackers
Face-down stacker
When the face-up stacker (1) on the left side of the printer is
closed (its normal position), paper is ejected to the face-down
stacker on the top of the printer unit.
1
Face-up stacker
The face-up exit path is used for heavy paper (cardstock etc.),
envelopes, transparencies, and labels.
1. Open the stacker (1).
1
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