Low-Voltage Power Supply / Low-Voltage Fan / Hopping Motor / Fuser Motor - Oki C5650 Maintenance Instructions Manual

4.2.12 Low-Voltage Power Supply / Low-Voltage Fan / Hopping Motor / Fuser Motor

(1) Remove the cassette assembly.
(2) Disassemble the print engine controller PCB. (See Subsection 4.2.7.)
(3) Disassemble the CU PCB. (See Subsection 4.2.6.)
(4) Disconnect all the cables from the Guide Cable PowerLow.
(5) Unplug the fuser I/F connector from the low-voltage power supply, and remove Guide Cable
PowerLow 1 by releasing the two claws.
(6) Remove two screws (silver) 2 and four connectors (CN1, CN2, CN3), and disassemble low-
voltage power supply 3. At the same time, remove screw 4 to disassemble AC inlet Assy
5.
(7) Release claw C, and remove low-voltage fan 6.
(8) Detach motor cover 7 by releasing two claws D and claw E.
(9) Remove two screws (silver) 8, unplug the connector, and disassemble hopping motor 9.
(10) Remove four screws (silver) 0, unplug the connector, and disassembleFuser Motor A.
(11) Remove three screws (silver) B, unplug the connector, and disassemble ID motor C.
Note! • When reassembling low-voltage fan 6, confirm the direction.
• When reassembling low-voltage power supply 3, check the setting of the AC input
voltage.
• Replace low-voltage power supply 3 and AC inlet assembly 5 together in a pair.
(Parts approved in a pair under Safety Standard) (they were in a pair qualified to
applicable safety standards).
Figure 4-2-12 Low-Voltage Power Supply / Low-Voltage Fan / Hopping Motor / Fuser Motor
43827101TH Rev.2
120-V system: Install a short-circuit plug to connector CN6.
230-V system: Do not install a short-circuit plug to connector CN6.
Air
7
6
Claws C
Claws D
9
7
Claws E
PU PCB
POWER connector
CN3
Notes!
CN6: Switching connector for AC input voltage setting
Short-circuit plug to be equipped for 100-V system/Short-circuit plug
not to be equipped for 230-V system
4
5
3
A
2
2
B
8
C
3
Low-voltage power supply
Short-circuit plug for CN6
Fuser unit I/F connector
CN6
CN2
CN1
Oki Data CONFIDENTIAL
0
0
1
AC switch
83 /