10 Jun
2008
10 Jun
'08
7:54 a.m.
I was printing on my IIISi tonight and, between jobs,
it switched from
working normally to displaying "50 SERVICE" (with the "50" flashing)
and not accepting print jobs.
This is one of the most common problem in the II and III series. Usually
a broken fusor lamp or problem in the AC Module. In the II/III it is ALWAYS
the small thyristor in the AC module. You can use a TIC106 in its place.
Open the printer, fool the door sensor and measure 120 VAC (or would it be
VDC?) on the fuser's terminals. If you don't have the 120 V(d?)AC, the AC
module is broken, just change the main thyristor.
There should be a service manual on emule...