> -----Original Message-----
> From: Stefan Trethan [mailto:stefan_trethan@...]
> Sent: Thursday, 3 March 2005 5:45 AM
> To: Homebrew_PCBs@yahoogroups.com
> Subject: Re: [Homebrew_PCBs] Lamps, was lexmark m412 board results
>
>
>
> On Thu, 3 Mar 2005 05:21:17 +1100, Tony Smith <ajsmith@...>
> wrote:
>
> >
> > Same thing, althought you might have trouble matching power rating &
> > sizes.
> > The fuser section from a photocopier I have here to make a
> laminator out
> > of
> > has a 850 watt lamp in it. Old HP LaserJets are about 500 watt.
> > If you find one that is the right length & has the correct
> connectors, it
> > should work. The lamp for those work lamps will probably be
> ok, although
> > they don't seem to have a very long life. I can only recall one time I
> > replaced a printer lamp, and that was thru someone breaking it, not it
> > wearing out. Might explain the cost! Quality!
> > The 850 watt one I mention here has the wires permanently
> attached, and
> > is
> > about 300mm long, to handle A3 paper. The HP one would be about 200mm
> > long.
> > Tony
> >
>
>
> The lexmark printer has the same ceramic ends with brass contacts
> where a
> spring contact presses against, no wires, exactly the same as in the
> lamps. the power's another issue...
>
> ST
HP lamps are like that too, from what I remember. The one with the wire
attached was from a Canon photocopier. I think they did this to reduce
manufacturing costs, it had a lot of 'let's do it as cheap as possible
features' in it. Not one of their better efforts.
In theory, you could replace the lamp with strands of nichrome wire. The
fact that everyone uses halogen lamps probably means it's more hassle than
it's worth. (The wire would burn out, stretch, insulation problems, etc)
Tony