Oki Data CONFIDENTIAL
43967002TH Rev. 1
345 /
7. Troubleshooting
7.5.2.(17) Fuse cut error (error codes 150 to 155)
(17-1) Fuse cut error
Check item
Check work
Action to be taken at NG
(17-1-1) Check the system connection
FFC connecting the
PU PCB and the
toner sensor PCB
(PRZ PCB)
Check if the connector is connected in the
half-way only or not, and is inserted in a
slanted angle or not at the SSNS connector
of the PU PCB, and at the SSNS
connector of the toner sensor PCB (PRZ
PCB).
Check if FFC has open-circuit of sheath of
the FFC has not peeled off or not.
Connect the FFC
normally. Alternately,
replace the FFC.
(17-1-2) Fuse cut circuit
PU PCB
Upon completion of the system connection
check, turn off the power once and back
on. The, check if the error occurs or not.
PU PCB
replacement
7.5.2.(18) Dew condensation error (Error 123)
(18-1) Dew condensation error
Check item
Check work
Action to be taken at NG
(18-1-1) Check the system connection
Connection between
the PU PCB and
High-Voltage PCB
Check that the 13-conductor FFC is
normally connected to the HVOLT
connector of PU PCB.
Check if the 13-conductor FFC is
connected to the CN1 connector of the
High-voltage PCB normally or not.
Check if the connector is connected in
the half-way only or not, and check if the
connector is inserted in a slanted angle or not.
Re-connect the
cable normally.
FFC connecting the
PU PCB and the
High-voltage PCB
Check for open-circuit with VOM. Check
that peeling off of sheath does not occur in
any cables by visual inspection.
Replace the FFC
with the normal
FFC.
(18-1-2) Environment condition
Sharp change
of environment
condition
Is the environment condition changed
sharply from a low temperature
environment to a high environment
condition within a short time? (Example is
such a case that a printer is moved from
storage condition of a cold area in winter to
an office environment.)
Leave a printer for
around one hour in
the new environment
to get used to the
new environment.
After that, turn on the
power again.
Before turn on the
power, touch the
metal panel of the
controller panel and
the metal plate inside
a printer to feel
temperature increase
inside a printer with
human hands. After
confirmation that the
printer temperature
has increased
close to the room
temperature, turn on
the power again.
