I had a Royal Sovereign NR-901 from Sam's Club with a foil setting that worked fairly well. Unfortunately, trying to pass a board that was too small jammed it and stripped something in the gearing which incidentally was all plastic.
I now have a tamerica LP-120 that has a temperature dial with settings from 100 deg C to 160 deg C (and steel gears). At the highest temperature it does a fine job with HP toner. I learned about this laminator here,
http://www.artemlive.com/cgi-bin/news?c=v&id=756and bought it from here,
http://www.mybinding.com/.sc/ms/dd/ee/1233/T7america-LP-120-4-Inch-Pouch-LaminatorI did have to open it up and and release some of the pressure on the rollers. Also, I cannot attest that the max temperature is 160 deg C. I let it warm-up for 10 or 15 min. and after after 4 passes or so, the board is pretty hot.
I have a theory (probably wrong) that using acetone as the final step in cleaning prior to laminating for the toner transfer promotes adhesion of the toner. The theory being that the residue left after evaporation of the acetone acts as a microscopic surface sensitizer since acetone is a solvent for the toner.
With the aformentioned laminator (at 160 deg C), and the following cleaning process I have been getting 100% yields in making my boards.
Transfer paper: Hp Laser Color Glossy Presentation Paper
cleaning:
(1) Rub a few times with Scotch-Brite (both directions).
(2) Clean with TarnX (oxalic acid), rinse
(3) Immerse in saturated solution of white vinegar and salt (1 min.), rinse
(4) Wipe board with acetone (plenty of acetone), let evaporate.
Laminate:
(1) 4 passes short dimension (each pass rotate 180 deg.)
(2) 4 passes long dimension (each pass rotate 180 deg.)
Baxter
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