Ricoh B246 SERIES, Руководство пользователя, Страница: 251 / 268

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Fusing Temperature Control
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Fusing idling
z
Done at the start of jobs on OHP or thick paper
(controlled by SP 1907)
„
The fusing unit gets very quickly to the ready and
printing temperatures.
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Because of this, fusing idling is normally not
necessary, and is not done.
„
SP1105 controls the fusing temperatures for
different paper types.
Service manual, section 6.12.8
Fusing Lamp Operation
Start-up
ˆ
When the power is turned on, the CPU checks the mains frequency for 0.5 s. The
CPU requires the mains frequency if phase control mode is active (see Fusing Unit
Control Modes).
ˆ
Then the fusing lamps turn on.
Fusing Idling
ˆ
There is no fusing idling in this machine, except in the cases shown on the slide,
because the fusing unit warms up at a high speed.
ˆ
What happens in fusing idling?: The fusing motor turns the hot roller with no paper
in the fusing unit. This ensures that the hot roller reaches the correct temperature.
The paper stops at the registration roller, then the roller resumes its rotation after
the hot roller reaches the correct temperature.
Printing temperature: Can be adjusted for all paper types with SP 1105.