HP LJ3 50 Service Error - Testing the fuser

[H. E. Taylor]

Greetings,
If I power up the printer with the top open while holding
the 2 silver cartridge present switches and the cover closed
switch depressed, I should see some light (and then feel
some heat), right?

If there is no light, it might be either the fuser lamp
or the AC power supply, right?

If I take the fuser out and turn it over, there is a 2 lead
power connector on the right and a 7 lead electronic
connector on the left.

What impedances should I see on these leads?

<adthanksvance>
-het

 

[selldastuff]

fuser lamp or thermal fuse on fuser assembly. Fuser lamps tend to be
short-lived. I cannot recall where the thermal-limiter fuse is on a LJ3
fuser.