Gestetner G060 Service Manual page 951

BULLETIN NUMBER:
APPLICABLE MODEL:
GESTETNER – DSC38/DSc38S
RICOH – AP3800C/AP3800CMF
SAVIN – SLP38C/SLP38cS
SUBJECT: BLACK DEVELOPMENT DRIVE UNIT FUSING CLUTCH
GENERAL:
A fusing clutch has been added to the black development drive unit. The fusing clutch switches on in
order to operate the fusing unit. However it is switched off during the process control self-checks, line
position adjustment, and image processing for print/copy jobs. This is to maximize the life of the fusing
unit and oil supply unit.
For this modification, the following major parts have been modified that also include the firmware.
However, all modifications could not be implemented at the same time. Modifications have been applied
as shown in the following table. Since the cut-in serial number of each part differs, there are some notes
when replacing the BCU board in the field. Please read this Technical Service Bulletin carefully.
Old P/N
1st Modification
1 G0775061
2nd Modification
1 G0775069 G0775069A
2 G0601100
3rd Modification
1 G0775069A
NOTE: 1. A DIP switch has been added to the BCU board (P/N G0775069 or later). The G0775069 BCU
board has not been registered as a service part. The G0775067 is available as a new BCU board.
2. The machine is able to recognize whether or not the fusing clutch is being used in accordance
to the DIP switch setting. The DIP switch setting is very important! If the switch has not set
correctly, a paper jam or a fusing problem will occur. Please refer to section "DIP Switch Settings"
on page 2 of this Technical Service Bulletin.
3. The engine main firmware has been modified twice. However, the firmware (Version 1.15E) for
controlling the fusing clutch operation could not be issued at the time when the fusing clutch had
been implemented in machines. Version 1.11H firmware has temporarily been installed. The
firmware will turn on the fusing clutch operation.
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Copyright 2003 RICOH Corporation. All rights reserved.
TECHNICAL SERVICE BULLETIN
G060/G570 – 020
Modification History
New P/N Q'ty
G0775069 1-1
1-1
G0771100 1-1
G0775067 1-1
INT Description
0 BCU Board (See NOTE.)
Engine main firmware: Ver. 1.11G
1 BCU Board (See NOTE.)
Engine main firmware: Ver. 1.11G -> 1.11H
1 Drive Unit - K Development
1 BCU Board (See NOTE.)
Engine main firmware: Ver. 1.11H -> 1.15E
01/31/2003
Continued...