That's a very interesting article Steve. I too have gone through every form of media, including photo paper, (even aluminium foil!) with varying degrees of success. I'll have a go at the specific brand of photo paper you suggest.
But after much experimentation some years ago, I have since had excellent results with backing paper off sticky labels. Avery labels in my case.
I tape the print onto the PCB and after passing the board through a laminator (about 8 times), the toner sticks to the PCB and every speck of toner is transferred off the backing paper. Because the backing paper is non-stick, it literally falls away from the PCB without lifting any toner from the copper. It works very well.
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