Homebrew PCBs

I am using an HP LaserJet 2200d printer with an HP 96A toner 
cartridge.  The printer is set for "Best Quality" printing and the 
printing density is set to maximum, e.g. 5.

If there is sufficient interest, I can pass a thermocouple thru the 
laminator and measure its temperature. It is likely the temperature 
can be manually adjusted by doing some simple circuit modification to 
the laminator.

Poor toner adhesion can also be caused by contamination of the paper 
after printing or by contamination of the PCB surface prior to fusing 
in the laminator.  Air borne contaminates such as dust or oil 
(cooking, machine, etc.) can be a problem so keep paper and PCB 
covered until fused together. I wonder if dirty rollers in the 
printer fuser could contaminate the image. Improper surface 
preparation of the PCB can also be a problem.

I am using double-sided 1-ounce-copper 0.062-inch FR4 PCB material.

Lyman

--- In Homebrew_PCBs@yahoogroups.com, "Phil" <phil1960us@y...> wrote:
> 
> what printer (actually, toner) are you using?  With my canon
> copier/toner, I need 20 passes to get the toner to stick to 062 
double
> sided material.
> 
> There are 2 possible causes of this discrepency in the number of
> passes: toner fusing point and variability in the heating of the
> laminator.