Ricoh B079, Service Manual

Page: 431 / 948

Detailed
Des
cription
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IMAGE FUSING AND PAPER EXIT
SM 6-99 B079/B082
6.15.10 CPM DOWN FOR THICK PAPER
Because the fusing temperatures are set lower for the new toner which has a lower
melting point, the results of printing on thick paper cannot be guaranteed at 45 cpm
on the B082. Therefore, the 45 cpm line speed is adjusted down to 35 cpm as
follows:
• After switching from Normal to Thick Paper for printing, the machine halts
temporarily and re-starts for 35 cpm running.
•
If the previous job included stapling or other finisher processing, these settings
remain in effect for the next job on thick paper after the line speed is adjusted.
•
If the print job on thick paper does not include an image on the page (a cover),
then the speed is not adjusted down from 45 cpm to 35 cpm.
NOTE: The previous machine automatically reduced line speed 30% (ppm
down) for thick paper. In these models, however, the speed is reduced
from 45 cpm to 35 cpm for the 45 cpm machine. This adjustment is
performed automatically for the B082 (45 cpm) machine only.
Note these other important points regarding cpm down for thick paper on the 45
cpm machine:
•
When the line speed switches from 45 cpm to 35 cpm for thick paper, the
transfer current changes to the settings specified with SP2301 (Transfer Current
Adjustment). (For details, see Section “5. Service Tables”.) Bias voltage,
development and other settings are not affected.
•
Fusing temperature adjustment switches on, but no operation can start until the
machine reaches the temperature specified for the job.
•
The ID sensor pattern is created and the line speed remains the same until the
end of the job.
•
The intensity of the LD unit is lowered evenly, 30 steps from its specified value.