Humidity Sensor Error (Error Code 123) - Oki MB461 Maintenance Manual

Oki Data CONFIDENTIAL

8.5.5. (16) Humidity sensor error (Error code 123)

(16-1) Humidity sensor error
Check item
(16-1-1) Check the system connection
Connection to the Check if the 28-conductor FFC is connected to
CU/PU board and the HVIF connector of the CU/PU board normally.
to the toner sensor
board
FFC connecting the Check for open-circuit with HVIF.
CU/PU board and Check that peeling off of sheath does not occur
the high voltage in any cables by visual inspection.
board
(16-1-2) Environment condition
Sharp change Is the environment condition changed sharply
of environment from a low temperature environment to a high
condition 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.)
44871001TH Rev.6
Check operation Actions for NG
results
Re-connect the
cable normally.
Replace the FFC
with the normal
FFC.
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.
8. TROUBLESHOOTING PROCEDURES
8-64