Oki Data CONFIDENTIAL
43827101TH Rev.2
221 /
7.5.2.(17)
Dew Condensation Errors (Error 123)
(17-1)Dew Condensation
Connection between PU PCB
and high-voltage PCB
FFC interconnecting the PU
PCB and the high-voltage
PCB
Heavy variation of
environmental condition
Confirmation Tasks
Check to see if the 13-pin FFC is properly plugged into the
HVOLT connector of the PU PCB.
Also check to see if the 13-pin FFC is properly plugged into the
CN connector of the high-voltage PCB.
Search for an imperfect connection or skew insertion.
Check for a wire breakage with a circuit-tester. Check visually
for peel-off of the covering.
Check to see if the environmental condition has changed from a
low-temperature condition to a high temperature condition in a
short time.
(For example, the printer was moved from storage in a cold
region to an office environment.)
Action at NG
Correct the insertion of
the cord properly.
Replace the connector
with a normal FFC.
Switch on the printer
again after
acclimatizing it to the
new environmental
temperature for one
hour or so.
Before turning on the
power, touch the sheet
metal of the controller
panel on the back and
internal sheet metals in
order to see how the
casing of the printer is
warming up. Turn on
the power again when
much difference from
the room temperature
is no longer perceived
Confirmation Items
(17-1-1) Check of connections
(17-1-2) Environmental condition