Ricoh G-P2 Service Manual page 254

G160 Service Manual
This prevents the heating roller's overheating. After printing, the machine turns the
heating roller with no heating. You can adjust the setting with SP 1912 7
3. At intervals of 4 hours if the machine is not used for a long time
This prevents the deformation of the hot roller and pressure roller.
Controlled by SP 1912 3 (interval) and 4 (duration)
Enable/disable this idling feature: SP 1912 1
For fusing idling at the start of a job, the duration and the fusing unit temperature during idling
are also corrected for ambient temperature. SP 1917 controls all the corrections. The
temperature/humidity sensor measures the room temperature. Corrections are made at the
following times:
Room temperature is below 18ºC (L threshold, controlled by SP 1917 8)
Room temperature is above 30ºC (H threshold, controlled by SP 1917 7)
Idling Ready Temperature before First Print Job: [A]
This is the idling ready temperature for the heating roller before the first print job. You can
adjust the setting with SP 1912 5. The default is 100°C. If the heating roller temperature does
not reach this temperature within 15 seconds after the heating lamp turns on, SC 542 occurs.
Machine Ready Temperature: [B]
You can adjust the setting with SP 1913 2. The default is 150°C.
Print ready temperature: [C]
You can adjust the setting with SP 1105 22. The default is 160°C.
Target Printing Temperature: [D]
This is adjusted by the value stored in SP 1104 23. This value is added to the print ready
temperature. The default is "5°C (G160)/ 10°C (G161)".
First Print Temperature: [G]
When the machine prints the first page, the heating roller temperature can easily decrease. If
necessary, you can increase the temperature for the first page. This is a good adjustment for
cold environments.
If fusing is not sufficient for the first page of a job, adjust these SPs:
Temperature increase for the first page of a job: SP 1104 25 This value is added to the
target printing temperature. The default is "2°C (G160)/ 8°C (G161)".
Duration for application of the temperature increase: SP 1104 26
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23-Feb-06