Ricoh TH-C1, Технический бюллетень

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T
echnical
B
ulletin
PAGE: 2/4
Model:
Model TH-C1
Date:
19-Jul-05
No.:
RB156005
Symptom Corrected Version
SP modes for Toner Refresh mode and PCU rotation when repeat B/W
duplex copies/prints are made. This is to ensure that images (toner with
silicone oil) do not stay on the ITB and get on the next sheet of paper.
Note: Details will be explained in a separate RTB (TBA).
SP2-981-003:
[0 ~ 200 / 30 / 1 sheet/step]
SP2-981-004:
[0 ~ 200 / 6 / 1 sheet/step]
SP2-984-001 (Duplex PCU Idling Setting - Total Period: T1)
[6 ~ 200 / 60 / 1 s/step]
SP2-984-002 (Duplex PCU Idling Setting - Printing Prohibited Period:
T2)
[6 ~ 60 / 6 / 1 s/step]
SP3-970-005 (Image Area Rate – Oil end)
[0 ~ 10.0 / 0.5 / 0.1 %/step]
Note: In addition to this BICU version, be sure to update the main unit
controller firmware to V1.05 or later.
V1.04
Sometimes, the transfer belt sensor incorrectly declares a “no paper”
condition when it detects a high-density solid image, even if there is
paper at the sensor.
The leading edge is dirty with toner. To improve this, the ITB cleaning
time (ON time for the cleaning brush) was increased. V1.03