Question about HP Color LaserJet 3500 Printer
50.9 error - Fuser Failure (Abnormally High
Temperature Sub Thermistor)
1. The connector between the fuser and
the printer is not connected properly.
Reseat the fuser. Check the connector J5013
between the fuser and the printer. Replace it
2. Short in the sub thermistor. Turn the
printer off and remove the fuser. Measure the
resistance between the fuser connectors
J5013LA-4 (SUBTH) and J5013LA-3
(+3.3V). If it reads 600 ohms or below (at
ambient temperature), replace the fuser.
3. Faulty DC controller PCB, replace the
DC controller PCB.
I think you've some problems on the connectors, check the connections.
If you are able, replace the broken fuser roller from the old fuser with one from the new fuser.
Posted on Jun 09, 2011
Testimonial: "thanks for the tips, it was the last words that did the job, read the comments on the post.. grtz"
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