Service manual

4-15
CHAPTER 4 REPLACEMENT OF PARTS
L. Low-voltage power supply/low-voltage fan/hopping motor/fuser
motor
(1) Remove the cassette assembly.
(2) Disassemble the print engine controller PCB. (See Section "G. Print engine controller PCB".)
(3) Disassemble the control PCB. (See Section "F. Control PCB".)
(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. (Tool No. 1) 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 (black) 8, unplug the connector, and disassemble hopping motor 9.
(Tool No. 1)
(10) Remove two screws (silver) 0, unplug the connector, and disassembleFuser Motor A. (Tool
No. 1)
(11) Remove three screws (silver) B, unplug the connector, and disassemble ID motor C. (Tool
No. 1)
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.
120-V system: Install a short-circuit plug to connector CN6.
230-V system: Do not install a short-circuit plug to connector CN6.
• 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).
Low-Voltage Power Supply / Low-Voltage Fan / Hopping Motor / Fuser Motor
Air
CN3
PRN PCB
POWER connector
CN1
CN2
CN6
3
3
A
0
B
2
6
7
C
8
9
2
4
5
1
Short-circuit plug for CN6
7
Claws E
Claws D
Claws C
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
AC switch
Fuser unit I/F connector
Low-voltage power supply