HP Laserjet 5550 error 50.4k help!

[ngoclongchau]

Hi all
I have an error 50.4k on a HP LJ5550 but not know how to fix, please help me
Many thanks.

[JustManuals]

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Paul@justmanuals.com

[kuby]

This is a fuser error.....replace the fuser.

50.X FUSER ERROR
For help press

None A fuser error has occurred.

X Description

1 low fuser temperature
2 fuser warmup service
3 high fuser temperature
4 faulty fuser
5 inconsistent fuser
6 open fuser
7 fuser pressure release
mechanism failure
8 low fuser temperature
(sub=thermistor)
9 high fuser temperature
(sub=thermistor)
1. Turn the printer off and allow it to cool down.
2. Reinstall the fuser, and check the connector (J100) that
connects the fuser and the printer. Replace the
connector if it is damaged.
3. Turn the printer off and remove the fuser. Measure
the resistance between the connector pins on the fuser. If
resistance does not meet the following guidelines, replace
the fuser.
J100LB-5 to J100LB-6: 300 - 500 KOhms
J100LB-1 to J100LB-2: less than 1 KOhm
4. Check for continuity between connector pins J100-5 and
J100-6. If there is no continuity, replace the fuser.
5. Replace the fuser power supply PCB.
6. Replace the DC controller PCB. Calibrate the printer
after replacing the DC controller.

[ngoclongchau]

I got it. Thank you very much.