Low Voltage Power Supply/Low Voltage Fan/ Hopping Motor/Fuse Motor - Oki C710 Maintenance Manual

Oki Data CONFIDENTIAL
4.2.15 Low voltage power supply/Low voltage FAN/
Hopping motor/ Fuse motor
Warning
There is a risk of electric shock during replacement of the low voltage power
supply.
Use insulating gloves or avoid direct contact with any conducting part of the
power supply, and caution should be exercised during replacement.
The capacitor may take one minute to complete discharge after the AC cord
is unplugged. Also, there is a possibility that the capacitor doesn't discharge
because of a breakage of the PCB, etc., so remember the possibility of
electric shock to avoid electric shock.
(1) Take the cassette Assy out.
(2) Remove the print engine controller PCB. (See section 4.2.9)
(3) Remove the control PCB. (See section 4.2.8)
(4) Remove all cables from Guide cable PowerLow.
(5) Remove the fuse I/F connector from low voltage power supply, disengage the
claws (2 places), and remove the Guide cable PowerLow
(6) Remove the two screws
remove the low voltage power supply
At the same time, remove the screw
(7) Disengage the claw C and remove the low voltage FAN
(8) Disengage the claw D(2 places) and claw E, and remove the motor cover
(9) Remove the 3 or 4 screws
(10) Remove the three screws
Notes! • Be careful to install the low voltage FAN
• Please confirm the setting of AC input voltage when installing the low
voltage power supply
100V: the short plug is mounted to the connector CN6
230V: the short plug is not mounted to the connector CN6
• Low-voltage power supply
together.(The pair of low-voltage power supply and AC Inlet Assy meets
the safety standards.)
• The number of screws varies between fuser motors.
Three screws: 43963301 (Sanyo)
Four screws: 43070601 (Nidec)
43856301TH Rev.3
Risk of Electric Shock
.
(silver) and four connectors (CN1, CN2, CN3), and
.
and remove the AC inlet Assy
.
(silver) and connector, and take the fuse motor
(silver) and connector, and take the ID motor
in the proper direction.
.
and AC Inlet Assy should be replaced
Claw D
Air
.
PRN PCB
.
POWER connector
out.
out.
CN3
Note! CN6: A connector used to switch the AC input voltage setting
100V short plug is mounted/ 230V short plug is not mounted.
4. Component replacement
Claw E
Low-voltage power supply
For CN6
Fuser I/F connector
Short plug
CN6
CN2
CN1
AC switch
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