Heat Assembly - Oki OKIFAX4550 Maintenance Manual

4.3.14 Heat Assembly

This section explains how to dismount the heat assembly and parts in the assembly.
(1) Disassembly procedure
< Dismounting the heat assembly>
a) First, carry out procedure up to the
point of the 4.3.2 (ID Unit, Cover-
Rear and Cover-MAIN).
b) Dismount the high-voltage power sup-
ply board. (See Section 4.3.9)
c) Remove NCU-Board with two screws.
d) Remove Bracket-Package with three
screws, then disconnect Cable-Flat
from connector on 46F or R46-Board
(M-CNT).
(See Sction 4.3.18)
e) Pull out the Holder-Assy. (See Sec-
tion 4.3.10)
Disconnect connector 2, remove two
f)
screws 1, and dismount the heat
assembly.
<Dismounting parts in heat assembly>
a) Dismount heat separator.
Remove screw 3 and dismount ter-
b)
minal plate. (Handle heat assembly
carefully because Halogen lamp
comes off.)
c) Turn left and right heat bearings in the
arrow direction to unlock. Then, dis-
mount halogen lamp, heat bearing,
heat roller, and heat gear together.
(Take care not to drop the Halogen
lamp.)
d) Dismount thermistor.
e) Dismount the clamp, then thermo-
stat, heat contact, and heat cord to-
gether.
f) Dismount heat contact and heat cord
from thermostat.
Caution: Take care not to bend the claw when dismounting heat bearing.
(2) Reassembly procedure
Reverse the disassembly procedures
41309401TH Rev.4
Heat assembly
Screw 1
Connector 2
Halogen lamp
Voltage display side
Left heat
bearing
Heat roller
Heat code
Thermostat
Thermister
Screw 3
Terminal plate
Screw 1
Heat gear
Right heat bearing
Heat contact
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