Oki B6200 - Fip2.4 Fuser Assy (Pl8.1.20)

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Chapter 1 Troubleshooting
FIP2.4 FUSER ASSY (PL8.1.20)
Step
Check Yes No
Possible causative parts:
FUSER ASSY (PL8.1.20)
HVPS/MCU (PL12.1.19)
INTERLOCK S/W 24V (PL8.1.11)
HARNESS ASSY FUSER 100V/200V (PL8.1.17)
HARNESS ASSY AC100V/200V (PL12.1.8)
LVPS (PL12.1.5)
HARNESS ASSY LVPS (PL12.1.1)
1
Checking Heater circuit for continuity
Remove SHIELD PLATE LVPS. (RRP12.1)
Disconnect P/J47 from LVPS.
Are the following continuous normally?
J47-1 <=> J47-5
J47-1 <=> J47-3
Go to step 3. Go to step 2.
2
Checking HARNESS ASSY FUSER for continuity
Remove FUSER ASSY. (RRP8.8)
Warning; Start the operation after the FUSER ASSY
have cooled down.
Are the following continuous normally?
J4647B-3 <=> J47-1
J4647B-2 <=> J47-3
J4647B-1 <=> J47-5
Replace FUSER
ASSY. (RRP8.8)
Replace
HARNESS ASSY
FUSER.
(RRP8.7)
3
Checking Fuser power source voltage
Disconnect P/J48 from LVPS.
Remove EP CARTRIDGE.
Turn the power to ON.
Is the voltage across P/J48-1 <=> P/J48-3, commercial
voltage?
Go to step 5. Go to step 4.
4
Checking AC line voltage
Is the AC line voltage the commercial voltage?
Replace
HARNESS ASSY
AC100V/200V
(RRP12.4)
Inform the client
or the electrician.
5
Checking Heater Rod ON signal voltage
Make sure FUSER ASSY is cooled down.
Make sure that EP CARTRIDGE is removed.
Is the voltage across P/J41-13 and P/J41-12 <=> P/J41-3,
0VDC when Heater Rod lights on, and 3.3VDC when off?
Go to step 7. Go to step 6.
6
Checking HARNESS ASSY LVPS for continuity
Disconnect P/J11 from HVPS/MCU.
Are the following continuous normally?
P/J41-1 <=> P/J11-16
P/J41-9 <=> P/J11-8
P/J41-10 <=> P/J11-7
P/J41-12 <=> P/J11-5
P/J41-13 <=> P/J11-4
Replace
HVPS/MCU.
(RRP12.10)
Replace
HARNESS ASSY
LVPS.