On 21/02/16 17:22, Trevor Wilson wrote:
I have an ancient HP Color Laserjet 3600N, I picked up a few months
back. Nice printer. So nice, that after a few months, I took the plunge
and bought a bunch of toner cartridges for the thing. As luck would have
it, it has just thrown up a fuser error (50.8). At first, the error was
intermittant, now it is permanent. Questions:

* Service data source?
* Can the fuser be repaired? The cost of a fuser here in Australia is
astronomical?
* Is the fuser a 230VAC one (Australia is a 230VAC nation), or can I
just buy a new fuser (or re-built one) from eBay?
* I assume there is some kind of feedback system (NTC or PTC element)
and that is what has failed, rather than the heater (the fuser still
gets hot)?

Just a couple of random thoughts...

I've disassembled a couple of mono HP laser printers. The fuser is
heated by a long halogen lamp inside a thin-walled metal (aluminium?)
tube, which is coated with something very slick, perhaps PTFE. The
thermo switch is just an on-off bi-metal thing that rides against the
fuser tube - with surprisingly little signs of wear on the ones I took
apart.

Bottom line, you should see bright light from the end of the fuser tube
when it fires up, and perhaps you can measure the current draw?

The fuser is very... central. Lots of disassembly to get to it.

Clifford Heath.