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Subject: RE: Re: [Homebrew_PCBs] Double or triple printing to increase ink density/opaqueness.

From: <andrewm1973@...>
Date: 2013-11-06

> Keith wrote:
> Has anyone ever simply refed an already printed photo
> positive transparency to print a second and even a third
> time, in order to double/triple the density of the ink, thus
> increasing opaqueness.
> <SNIP>


For a laser printer it is only the large black areas that have opacity problems and need over printing.


Don't double print thin traces.


Shrink ground/power planes by a little bit more than your average misalignment.


Only print the ground/power planes on the 2nd/3rd run


Expect an occasional wildly different feed position to ruin a print.


Inkjets (for me at least) don't have an opacity problem.