Fusing Temperature Control - Ricoh G104 Service Manual

Fusing
installed.

6.6.2 FUSING TEMPERATURE CONTROL

Overall Procedure
The machine starts to warm up the fusing unit to get the print ready condition. When the
heating roller temperature gets to the idling ready temperature [A], the idling procedure
starts to warm up the heating roller. The temperature becomes higher than the machine
ready temperature [B] and gets to the print ready temperature [C] after the heating roller
completes the idling.
The temperature increases to the target printing temperature. Then printing starts. If the
temperature does not get to the target printing temperature before 30 seconds (SP 1104
22), printing starts.
The temperature increases to the first print temperature [G] when the first sheet of paper is
printed, but this is only for the first page.
After the printing job, the machine turns the heating roller to prevent overheating [F]. You
can adjust the fusing temperature settings.
Fusing Roller Idling
This is done at the following three times:
1. Immediately after the power is turned on, or when the machine comes
back from energy saver mode, if the fusing unit temperature is less than
100ºC.
This is [E] on the diagram.
This idling keeps the heating roller warmed up equally while it is heated. This
temperature is controlled with SP 1912 5, and the durations of fusing idling are
controlled with SP 1912 6, and 8 to 14
You can also adjust this with SP 1912 2 and SP 1105 43
G160/G161
CÓPIA NÃO CONTROLADA
6-20
CÓPIA NÃO CONTROLADA
SM