Image Drum Fan And Zhj Board; Cu/Pu Pcb And Low-Voltage Power Supply - Oki C301 Maintenance Manual

Oki Data CONFIDENTIAL

4.2.8 Image drum fan and ZHJ board

(1) Remove the left side cover.
(2) Remove the (silver-colored) screw
detach the image drum fan
(3) Remove the (silver-colored) screw
board .
44951501TH Rev.2
and the two (silver-colored) screws
.
and unlatch five portions to detach the ZHJ

4.2.9 CU/PU PCB and low-voltage power supply

Warning
to
When replacing the low-voltage power supply, electric shock may occur. Wear insulated
gloves, or be careful not to touch the conductors or terminals of the power supply directly.
After the AC cord is unplugged, the capacitor may take about one minute to discharge
completely or, due to PCB breakdown, could not discharge. Use caution about electric shock.
(1) Remove the right side cover.
(2) Remove the four (silver-colored) screws
assembly .
(3) Remove all the CU/PU board cables.
(4) Remove the three (silver-colored) screws
(5) Remove all the low-voltage power supply cables.
(6) Remove the two (silver-colored) screws
Exit connector
Fuser connector
Rear fan connector
4.REPLACEMENT OF PARTS
Electric shock hazard
and unlatch and remove the plate shield
to detach the PU/CU PCB
to detach the low-voltage power supply
Note! The LED head cables
should be attached, the
end of the Film-FG being
placed inside the Plate-
side-R so as that they
touch no sheet metal
edges of the Plate-side-R.
Exit cable wound one
turn around core
.
.
4-8