Ricoh GR-C1 Series Service Training page 180

If there is no fuse,
install one
Slide 180
No fuse is present in the machine's original fusing unit, so you have to install
one.
Fuse for new unit detection, part number: M026 4371
*1:
a) Do not use SP 3-701-014 to reset the fusing unit counter manually when
doing the above reset procedure for SC554-00.
b) Do not open the door when doing the procedure in this flow chart ("SC
reset failure" will be shown.). The SC reset will be successful if the fuse for
new fusing unit detection is blown if the machine door is open during the SC
reset, and it will not be successful if it is not blown. The SC reset should be
performed again if it fails.
"SC reset failure" will be shown when this SP (SP5-810-002) is executed if
an SC other than SC554-00 occurred.
SC554
If SC554-00 occurs, there could
be temperature damage to the
fusing unit.
The fusing unit should be
replaced, but if it is not
damaged, you can continue to
use it.
If you wish to try to use the same
fusing unit, follow the procedure
on the flow chart.
Replacement and Adjustment, Fusing, When SC554 Occurs
180
If you see no damage, replace
the fuse for new unit detection
(this will be blown already), or
install one if no fuse is
present.
» If you see damage, replace
the entire fusing unit.
Do SP 5-810-2 (not 5-810-1)
If you replaced the entire
fusing unit, you must reset the
PM counter for the fusing unit.
If you only replaced the fuse, it
is not necessary to reset any
counters. This is because you
are using the same fusing unit.
GR-C1 Training