Ricoh M199, Техническое учебное пособие

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Springs always apply the correct pressure to the nip between the pressure roller
and hot roller. When releasing the pressure release levers, the pressure roller
moves away from the hot roller. If a paper jam occurs in the fusing unit, releasing
these levers make it easy to remove jammed paper.
Pressure release levers: Also known as the envelope levers in this machine,
because they are used to release pressure between the fusing unit rollers when
envelopes are used.
The hot roller has a thin wall.
With a thin-wall hot roller, it can be difficult to pull paper off, so stripper pawls
are added (the previous model did not have these). A solenoid operates
these pawls (see the next slide).
A cleaning roller removes toner/dust transferred from the pawls to the hot
roller