Kyocera TASKalfa 7002i Service Manual page 1449

Step Check description
3 Replacing the controller
fan motor
4 Replacing the main PWB
(5) The developer fan motor does not rotate
(Final phenomenon: The printing operation of the main unit is frequently interrupted to cool the machine inside
according to the inner temperature increase during the continuous printing.)
Step Check description
1 Cleaning the developer fan
motor
2 Checking the wire
3 Replacing the developer
fan motor
4 Replacing the front PWB
5 Replacing the engine PWB The engine PWB is faulty.
(6) The main unit malfunctions even if turning on the power switch
Step Check description
1 Measuring the input volt-
age
Assumed cause
The motor is faulty.
The main PWB is faulty.
Assumed cause
Foreign materials such as
dust adhere on the devel-
oper fan motor.
The connectors are not
properly connected or the
wire is faulty.
The developer fan motor is
faulty.
The front PWB is faulty.
Assumed cause
The power cord has no
continuity.
7-589
Measures
Replace the controller fan
motor.
Replace the main PWB.
Measures
Clean the developer fan
motor.
Clean the terminal of the fol-
lowing wire connectors and
reinsert the connectors.
Replace the wire when it has
no continuity. • Developer fan
motor - Front PWB • Front
PWB - Engine PWB
Replace the developer fan
motor.
Replace the front PWB.
Replace the engine PWB.
Measures
Plug the power cord into
another wall outlet.
2WA/2NJ/2RK
Reference
Fan
Motors
Attach-
able Direc-
tion
Detaching
and Reat-
taching the
main PWB
Reference
Wiring dia-
gram
Fan
Motors
Attach-
able Direc-
tion
Detaching
and Reat-
taching the
front PWB
Detaching
and Reat-
taching the
engine
PWB
Reference