(OT) Laserjet III laser scanner module

[Tony Duell]

> 
> On 01/07/10 20:11, Tony Duell wrote:
> > Err, yes... But if I am setting up the optics in a laser printer scanner,
> > I want to be able to dtect where the beam is (roughly) going and then
> > tweak the lenses/mirrors to get it where I want it.
> 
> Indeed. It's even more useful to get an instant response when you're 
> setting up the focus...

Yes, of course you're replacing the laser, so you have to 
re-focus/colimate the beam. Fortunately when I was assembly the CX 
scanner, I on;y had to make sure the beak was going in the right places...

> 
> Getting down to 0.08mm is going to be interesting, what with 
> beam-scatter and fluorescence. And I really don't like the idea of using 
> a focus-finder to set it up... viewing a laser through a magnifying lens 
> seems like a really dumb idea to me, even with safety goggles.

'Do not look up this laser beam with your remaining eye' :-)

When I have a chance I;ll dig out what schematics I have of the CX and SX 
enginers and get copies to you...

-tony