Is your Zebra thermal printer lp2844 or gc420d (or many other models) printing blank labels on boot or when you open/close the top? It's an annoying setting that you can turn off. Hopefully this tutorial helps.
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Video Index
00:00 Intro
1:21 Why is it printing 2 blank labels?
2:55 Zebra Driver Fix
6:13 Bartender Driver Fix
