Loading Envelopes

The inside of this machine becomes very hot. Do not touch the parts labeled "" (indicating a hot surface).

Before printing on envelopes, make sure to lower the fusing unit levers inside the front cover to avoid envelopes coming out creased. Also, pull up the levers back to their original positions after printing. Leaving the levers lowered can cause print quality problems when printing on paper other than envelopes.
Since the temperature around the guide is high, wait for it to cool before touching the fusing unit levers.

Lowering the fusing unit levers

Pull the opening lever on the front cover, and then carefully lower the front cover.
Lower the fusing unit levers.
Using both hands, carefully push up the front cover until it closes.