Technical Bulletin PAGE: 1/9
Model: Model U-P1 Date: 3-Feb-03 No.: RG071003
Subject: Firmware History - Main Unit Controller Prepared by: H.K.
From:
Technical Services Sec. Service Planning Dept.
Classification:
Troubleshooting
Mechanical
Paper path
Part information
Electrical
Transmit/receive
Action required
Service manual revision
Retrofit information
Other (Firmware History)
This is to inform you of the Main Unit Controller firmware history.
Part No. Program name
G0705940 Version C.SUM Production
K G0705941K.bin
G0705940K.bin
V2.24 6E31
EF54
February Production ‘03
J V2.22.1 - January Production ‘03
H - V2.22 - November Production
‘02
G - V2.21 - Not applied to the
production machines
F - V2.20 - Not applied to the
production machines
E - V2.19 - Not applied to the
production machines
D - V2.18 - August production ‘02
Note for updating test marketing machines (PMO) firmware:
Default values of the fusing temperature (SP1-105 ), paper transfer currents (SP2-310-001 to SP2-
314-032), and paper transfer adjustment (SP2-903-01) have been reviewed. When firmware is
updated to V2.20 or later for the first time, please check these settings. If the settings are still old
ones, please set the type to 0 and press the # key in SP2-905-01 and SP1-905-01. For details,
please refer to the corrected symptom explanations in V2.20 and V2.18 (pp. 2, 3 below).
August '02 production serial numbers:
l G071-17: P75268xxxxx
11 units were shipped to US market as the test marketing machines (PMO).
l G071-27: P75268xxxxx
11 units were shipped to RDG fields as the test marketing machines (PMO).
Note for updating main unit controller firmware:
Whenever updating main unit controller firmware from v2.22.1 or earlier to v2.24 or later, please be
sure to update the BICU firmware at the same time to v1.38 or later. The BICU firmware history is
described in RTB No. RG071004.
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