Oki C911 Maintenance Manual

45530603TH Rev.2
4-77
Oki Data CONFIDENTIAL
4. TROUBLESHOOTING PROCEDURE
(18-2) Error caused by the defective mechanism
Check item Check work
Actions to be taken
at NG
(18-2-1) Mechanical load applied to the ID unit
ID unit C heck if a heavy mechanical load is being
applied to the ID unit due to breakage of the
waster toner belt, or not.
Replace the ID
unit.
To use a new
ID unit for a
try, be sure to
use New Parts
Keep Mode
of the System
Maintenance
menu.
(18-2-2) Motor operating condition
ID motor C onfirm that the respective ID motors work
normally or not by using the Motor & Clutch
Test of the self-diagnostic mode.
Check if any extra load exists or not.
Replace the
PU/CU PCB or
the ID motor.
4.5.2.(19) Humidity sensor error (Service call 123)
(19-1) Humidity sensor error
Check item Check work
Actions to be taken
at NG
(19-1-1) Check the system connection
Connection
between the printer
control PCB and
the environmental
sensor board
Check if the FFC is connected to the ENV
connector of the printer engine control PCB
properly.
Check if the FFC is connected to the
environment sensor board properly.
Check the connectors for half-way connection
or angled connection.
Re-connect the
cable normally.
FFC connecting the
PU/CU PCB and
the environment
sensor board
Check for open-circuit with VOM.
Visually check that the sheath for peeling.
Replace with a
normal FFC.

Oki C911 Specifications

General

Brand	Oki
Model	C911
Category	Printer
Language	English