20 June 2005
IMAGE FUSING AND PAPER EXIT
6-93
Detailed
Descriptions
6.15.6 PRESSURE ROLLER
The pressure springs [A] apply constant
pressure between the hot roller [B] and the
pressure roller [C].
The applied pressure can be changed by
adjusting the position of the pressure
springs. The left position [D] is the normal
setting. The right position [E] increases the
pressure to prevent insufficient fusing by
the fusing unit.
A stopper counters the tension of the of the
pressure springs to keep the pressure roller
pressing against the hot roller with constant
pressure.
This prevents the pressure roller from
flattening and increasing the width of the nip
band as shown at [A]. This can lead to paper
slippage and paper jams in the fusing unit.
Until the machine is installed, two screws
and
maintain a gap between the
pressure roller and hot roller.
This relieves pressure on the surface of the
pressure roller and prevents it from
becoming deformed during storage before
the machine is shipped.
These screws are removed and discarded
when the machine is installed.
B195D981.WMF
B195D925.WMF
B195D982.WMF
[A]
[B]
[C]
[D]
[E]
[A]
