Ricoh B234 Service Manual page 921

FUSING
[D]
[C]
[A]
[B]
[E]
B234D986.WMF
SP1902 001 displays the cleaning fabric consumption. When the consumption
exceeds the value set with SP1902 004, the machine indicates near-end on the
operation display.
The machine still operates while the actuator [A] remains above the fabric end
sensor [B] undetected. The actuator arm of the actuator remains in contact with the
supply roller [C] and gradually lowers as the amount of fabric on the supply roller
grows smaller as it is fed to the take-up roller [D] above.
When the fabric runs out, the actuator drops into the fabric end sensor at [E] and
the sensor signals the machine to issue the fabric end message.
At fabric end, the fusing cleaning unit must be replaced by either the service
technician or a trained 'super user'.
SM 6-159 B234/B235/B236/D101/D102/D103