Ricoh B132 Service Manual page 835

The fusing belt system applies heat to the belt at three points: the hot roller, the
heating roller, and the pressure roller. This allows the use of smaller rollers and
conserves space. As less pressure is necessary during fusing, less torque is
required.
• The fusing belt, composed of silicone and Teflon layers, applies heat directly to
fuse the toner to the paper.
• The heating roller is an aluminum roller with two fusing lamps (590W + 590W). It
applies heat to the fusing belt after it passes the hot roller, and maintains the
heat of the fusing belt while the machine is in standby mode.
• The pressure roller has a metal core to provide rigidity, and is covered with
Teflon to prevent toner from adhering to its surface. It applies heat with one
fusing lamp (350W) to maintain the temperature of the fusing belt while the
machine is in standby mode.
• The accordion jam sensor detects accordion jams where the paper exits at the
nip between the hot roller and pressure roller.
• The fusing exit sensor detects jams at the fusing exit by confirming that paper
arrives the fusing exit at the correct time.
• The hot roller is a solid rubber roller with one fusing lamp (350W) that heats and
drives the fusing belt. Maintains the temperature of the fusing belt while the
machine is in the standby mode.
The fusing/exit motor speed depends on the paper type, as shown in the table
below.
Paper Type Selection
(User Tools)
Thin
Normal
Thick 1
Thick 2
OHP
SM
Paper Weight Range
2
g/m
14 to 19 lb Bond
2
52 to 71 g/m
19 to 33 lb Bond
2
72 to 126 g/m
33 to 41 lb Bond
2
127 to 156 g/m
41 to 68 lb Bond
2
157 to 256 g/m
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6-133
FUSING, PAPER EXIT
Line Speed
282 mm/s
282 mm/s
141 mm/s
141 mm/s
100 mm/s
B132/B200