Gestetner G060 Service Manual page 953

Tech Service Bulletin No. G060/G570 – 020
Page 3 of 3
BCU Board DIP Switch Settings
A fusing clutch has been added to the G060 series. To regulate the new clutch, a DIP Switch has been
added to the BCU board. The new board can be used in both new machines (with the fusing clutch) and
older machines (without the clutch). However the switch setting is different as shown below.
NOTE: This setting is very important. If the switch is not set correctly, a paper jam or fusing problem will
occur. See Caution below.
DIP switch settings (service parts default: All OFF)
DIP SW No.
4
1 to 3
BCU Board Installation Procedure:
1. Make sure all DIP switches on the new BCU board
are switched OFF.
2. If the board already installed in the machine has no
DIP SW, simply install the new board as is, i.e. with
the DIP SW switched OFF.
3. However if the board already installed has a DIP SW,
set the SW on the new board to match the setting on
the old board before installation.
4. After installing the BCU board, make sure the
machine is able to print out the configuration page
normally.
Caution:
1. If the switch is mistakenly turned OFF in machines
that have a clutch, a paper jam will occur near the
fusing unit entrance. This occurs since the machine
cannot drive the clutch.
2. Similarly, if the switch is mistakenly turned ON in
machines that do not have the new clutch, fusing problems will occur. This will cause the machine to
detect that a clutch has been installed. The machine will then release the "Clutch Off" signal to stop the
drive to the fusing components, whenever they are not needed. Upon doing this, the PM counters for the
fusing unit and oil supply unit will not count up, even though the parts are actually moving (as the clutch
is not there to stop them). As a result, the message for the End of the PM period will come too late,
overstressing these parts.
UNITS AFFECTED:
All G060 printers manufactured after the serial numbers listed below will have the new style Fusing Clutch
and BCU Board installed during production.
INTERCHANGEABILITY CHART:
OLD and NEW parts can be used in both OLD and
0
NEW machines.
NEW parts can be used in OLD and NEW machines.
1
OLD parts CAN NOT be used in NEW machines.
Must be installed as a set on units manufactured prior to the S/N cut-in. On units manufactured after the S/N cut-in or
3/S
previously modified, use the new part numbers individually.
OFF
Fusing clutch is not installed.
Factory Use Only: Keep these switches OFF.
MODEL NAME
Gestetner DSC38
Ricoh AP3800C
Savin SLP38C
Fusing clutch is installed.
BCU Board
SERIAL NUMBER
P6011100001
P6011100001
P6011100001
NEW parts CAN NOT be used in OLD machines.
2
OLD parts can be used in OLD and NEW machines.
OLD parts CAN NOT be used in NEW machines.
3
NEW parts CAN NOT be used in OLD machines.
ON
CN101
SW1