Bicu Firmware History - Ricoh B051 Service Manual

Firmware History for B051/B052

1.2 BICU FIRMWARE HISTORY:

Corrects the following:
•
Doctor roller reverse mode timing.
After 20 prints, at job end or after 50 prints (stops in the middle of the job), the machine
carries out the doctor roller reverse rotation to maintain good printing quality. A4/LT SEF
or shorter printing is counted as 1 and the printing longer than A4/LT SEF is counted as
2. With the prototype firmware, A4/LT LEF or shorter printing is counted as 1 and longer
than A4/LT LEF is counted as 2. This is to reduce the frequency
Corrects the following:
•
SP2-905-01: (Paper transfer roller type)
To improve the transferability, the shape of the paper transfer roller has been changed
st
from the 1 production. Due to this modification, paper transfer currents (SP2-310-001 to
SP2-314-032) and paper transfer adjustment (SP2-903-01) have been reviewed. The
settings for August production machines have been input on the production line. This SP
changes the default and factory settings for SP2-310-001 to SP2-314-032 and SP2-903-
01 for both types. It is necessary to set the type to 0 and press # key when firmware
version 1.181:01 or older (August production machines) is updated to 1.192:01 or newer
for the first time. This is because the machine cannot judge which data (old or new)
should be used for paper transfer currents. Check the SP settings after updating the
firmware (SP2-310-001 to SP2-314-032, and SP2-903-01).
NOTE: All settings will be initialized to their new defaults (see tables below), therefore any
previously input field customized settings must be re-input manually.
0: New paper transfer roller type (Drum type),
1: Old paper transfer roller type (straight type)
SP2-321-7 and –9: (Paper transfer bias of edge)
The default settings have been changed from 1.0 to 0.8 to improve image quality in low
temperature and low humidity conditions.
SP7-931-001 to –017 (Engine status display)
Engine log can be checked by SP mode for field symptom evaluation, as if the machine stalls,
the SMC cannot be printed out. Checking the indication in this SP can be helpful in
problem/cause identification.
•
Reducing fan motor rotation period
The development fan stops and the fusing unit fan is rotated at half speed for 15 seconds
after the last sheet of paper exits the printer. With the previous firmware, the fusing unit
fan and development fan both ran for 3 minutes after paper exit.
CÓPIA NÃO CONTROLADA
SYMPTOM CORRECTED
CÓPIA NÃO CONTROLADA
FIRMWARE
VERSION
1.181:01
1.192:01
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