Ricoh Pro C901 Technical Bulletin page 393

Reissued:05-Mar-14
Model:
Aries-P1.5/C1.5
Recommended actions to prevent & resolve SC39x
Update the Engine Firmware to version 1.009:16 or later.
In a system forced termination, developer accumulates at the nip between the dev
roller and drum, because the dev roller and drum stop suddenly. This generates
excess load on the drum rotation in the recovery operation. (See "Cause No.4 and
5" in Table 3 on the next page.)
The new f/w (Ver1.009:16) pre-rotates the dev roller in the recovery operation to
remove the developer accumulating in the nip between the dev roller and drum in
advance, which prevents abnormal drum rotation (SC39x).
Table 1
Version Program No.
1.009:16 M0775253B
1.008:16 M0775253A
1.007 16 M0775253
1.006:16 M0775252E
1.005:16 M0775252D
1.004:16 M0775252C
1.003:16 M0775252B
1.000A:16 M0775252A
"Available"
: The firmware can be updated via RFU or SD card.
"Unavailable" : The firmware can only be updated via SD card.
Table 2
Version
1.009 :16 Specification changes:
1. To meet the Energy Star Ver2.0 standards, ITB alignment control
values are no longer stored on the NVRAM during monochrome
printing.
2. Higher reliability against SC39x (drum-lock); machine warm-up
following a forced termination is performed after activating the
development motor.
3. Higher reliability against Jam 170 when alternately running A3/DLT
and A4/LT staple jobs.
NOTE
When applying this firmware, make sure to upgrade the firmware for
SR5020 to Ver.3.19 (P/N:D4345620N) or newer.
echnical
T B
Implementation to production
Jan 2014
Jan 2013
Jun 2012
Jul 2011
May 2011
Apr 2011
Feb 2011
1st mass production
Modified Points or Symptom Corrected
ulletin
Date:
01-Mar-13
RFU availability
Unavailable
Unavailable
Unavailable
Unavailable
Unavailable
Unavailable
Unavailable
Unavailable
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No.:
RM077086c