Lexmark 630 사용자 설명서

Gently adjust the envelope support for the size you are loading:

Fully closed (pushed in toward the printer) for short envelopes

Extended to the middle position for medium-length envelopes

Fully open (extended to its full length) for long envelopes

Do not place objects on the envelope feeder. Avoid pressing down on it or applying 
excessive force.

Lift the envelope weight back toward the printer. It stays in place.