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1159SBT030204A
:
4) C50: Warming-up Failure
,
C50, C51
C51: Abnormally Low Fusing Temperature
Check Item
Is the source voltage being supplied across PJ4F
Change PWB-F.
and PJ5F on PWB-F when S1 is tumed ON?
bie | Is there continulty across PUJ4F and PUSF on PWB-F
C52: Abnormally High Fusing Temperature
Relevant Electrical Parts
e Fusing Thermistor (TH1)
@ AVR (PWB-F)
© Fusing Thermoswitch (TS1)
@ Master Board (PWB-A)
Change the Fusing Unit.
as itis checked?
\s TH1 installed properly, or dirty?
YES | Reinstall or clean TH1.
YES
| ves |
| NO__|
| Result |
| Yes_|
Change PWB-F or PWB-A.
\s TH1 installed properly, or dirty?
Reinstall or clean TH1.
ES
:
Measure the resistance of TH1. Is it 09 or close to
Y'
Change TH1
0?
| NO | Change PWB-F or PWB-A.
Fusing
Roller
1
1158COSTAA
:
!
|
1
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