Homebrew PCBs

On Wed, 09 Jun 2004 12:37:07 -0000, luismoreira_2004 <luis.moreira@...> 
wrote:

> Hi Guys
> I have not tryed the method your describing or even understand the
> thermal transfer method, but I would like to give it a go in a few
> weeks and I do not want to buy a laminator. I came across a HP laser
> jet 4 printer which is going in the bin, the question is can I use
> the fuser unit from this Printer ? what should I look for ? I have no
> problems with building the control board for the stepper motor or the
> temperature control board.
> best regards
>             Luis
>
>

look how the rollers are suspended, if the thick boards will fit.
look if the bearings are spring-loaded and if you can adjust the pressure.

get the fuser unit itself, and the gears and motor you need.

You should also be able to find a triac and a optocoupler in the fuser
control circuit. you can use this for your control circuit.

If you need help with the temperature control i will finally write
up a quick guide and schematic for the simple control i use.

I was too lazy to fit the original copier motor, i used a chicken grill 
rotating
motor with great success.


Next time you are at the paper store look out for matt inkjet photo paper.
if there are several versions get the lightest/thinnest.
In the database section you find different papers and results.


ST