Ricoh pro c901 - Page 393

Technical Bulletin PAGE: 4/5
Reissued:05-Mar-14
Model: Aries-P1.5/C1.5
Date: 01-Mar-13
No.: RM077086c
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.
Implementation to production
RFU availability
1.009:16
M0775253B
Jan 2014
Unavailable
1.008:16
M0775253A
Jan 2013
Unavailable
1.007 16
M0775253
Jun 2012
Unavailable
1.006:16
M0775252E
Jul 2011
Unavailable
1.005:16
M0775252D
May 2011
Unavailable
1.004:16
M0775252C
Apr 2011
Unavailable
1.003:16
M0775252B
Feb 2011
Unavailable
1.000A:16
M0775252A
1st mass production
Unavailable
“Available” : The firmware can be updated via RFU or SD card.
“Unavailable” : The firmware can only be updated via SD card.
Table 2
Version
Modified Points or Symptom Corrected
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.