Zebra printers (IMHO) don't work well when you are printing PDF files on them. Problem on Linux side is cups driver which isn't quote up to task, and Windows driver is GDI one, which means that Windows has to rasterize PDF back into image before sending it to printer (which might explain incorect barcodes, but I'm guessing here). To overcome this, I wrote small converter from bitmap to ZPL and documented our setup using Inkscape template to produce pixel-perfect output on Zebra: http://blog.rot13.org/2012/02/printing-from-koha-to-zebra-printers-on-local-... Hope this helps :-) On Mon, Feb 13, 2012 at 12:39, Zeno Tajoli <tajoli@cilea.it> wrote:

Hi to all,

I have to print big batches of barcodes with  Zebra GK 420T. I try to use the pdf files created with Koha's Label Creator Module. In fact the print isn't correct. Positions of barcode are not not correct on the first 10 barcode, correct on 11°-20° barcode, not correct from 21° barcode until the end.

So I try to work with CSV export of barcode labels.

Do you have experience with this printer ? Do you have/develop specific routines to handle barcodes from csv export with this printer ?

Cheers Zeno Tajoli

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