i have 2 problems with pnm2ppa-1.12.
a) black areas are not black
b) there are thin lines every print sweep
on http://www.rootshell.be/~nwaibel/printer.html you can
find a more detailed description and parts of some scanned
printouts. the thin lines are really anoying...
i had a quick look into the code ...
... but could not find the problem yet.
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