Homebrew PCBs

leeleduc,

I use Brother Printer(s) HL-5250 and HL-3570 for all of my Toner Transfer
Projects, because they are the only printers I have access. And besides,
when I started (several year ago), I did not know they could not, or should
not, be used for TT.

See my Blog, showing many of my Toner Transfer Projects:

http://wa0uwh.blogspot.com/search/label/TT

or, the Home Page, at:

http://wa0uwh.blogspot.com/

and,

http://goo.gl/yxvaJ


Regards,
Eldon Brown

72 - Eldon - WA0UWH - CN88xc - http://WA0UWH.blogspot.com/


On Wed, May 2, 2012 at 8:41 AM, leeleduc <leeleduc@...> wrote:

> **
>
>
> I may have a possible solution to using Brother Laser printers for Toner
> Transfer PCB's. I was at Staples and was able to get a sample print out of
> a Brother HL-2240 laser printer. The paper was standard 20lb laser printer
> paper, nothing special. The MSDS for the toner cartridge says it is
> polyester based. I found that acetone dissolved the lettering on the
> printed paper and is a solvent for this toner. I tried the following
> experiment.
>
> 1. I took a sample of the printed paper and exposed it to acetone fumes
> for 20 minutes in a sealed plastic food container. The toner became
> slightly tacky to the touch.
>
> 2. I ran the paper and pcb through a GBC laminator 8 times.
>
> 3. I soaked the board in warm water for a few minutes and peeled off the
> paper. The toner fused to the copper very well. You can feel the raised
> toner on the copper with your finger.
>
> 4. The paper left a film on the toner which I removed with soapy water and
> a soft tooth brush. While the toner does have some pinholes, it is
> definitely fused to the copper.
>
> If you have a Brother laser printer it would be interesting to experiment
> using a known good type of paper and finding an optimum exposure time to
> the acetone fumes.
>
> The results are in the photo section in the Brother "HL-2240 experiment"
> folder.
>
> Happy experimenting!
>
>


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