i´m sure that i can send a plaintext as a chain of command to the printer. and the printer makes out of it a barcode.

You are talking about postscript. Perhaps you can create a Postscript page that has the drawing commands to have the barcode, and send it to your printer?

In reply to Re^5: the proper way of barcode rendering/printing by Anonymous Monk
in thread the proper way of barcode rendering/printing by AlexTape

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