Fusing Mechanism; B064 Series And G126 - Ricoh B064 Service Manual

IMAGE FUSING AND PAPER EXIT

6.12.2 FUSING MECHANISM

B064 Series and G126

The hot roller [A] and pressure roller [B] fuse the toner to the paper.
The hot roller, constructed of soft silicone rubber, is about 0.3 mm thick and coated
with a thin coat of Teflon (30 µ).
Two fusing lamps [C] (550 W) are inside the hot roller.
Two thermostats [D] are positioned above the hot roller near the center.
One thermistor [E] is also positioned above the hot roller near the center.
Another thermistor [F] is in contact with the end of the hot roller.
Thermistors
Center (non-contact) thermistor
End (contact) thermistor
*1
Thermostats
Center (non-contact) thermostats
*1
If the thermostats trigger an alert, the thermostat requires replacement.
A fusing exit sensor, located between the hot roller and paper exit roller, detects
paper jams inside the fusing unit.
B064 Series/B140 Series/G126
[D]
[C]
Temperature control
Overheating protection
Overheating protection
6-114
[E]
[B]
Rev. 05/2005
[F]
[A]
B140D9A4.WMF
SM