Reading data from dev usb lp0 linux

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 I have a label printer Wincode LP433 and can print using command

cat file.prn > /dev/usb/lp0

How I can read data from /dev/usb/lp0?

Apr 14, 2022 in Linux Administration by Soham
 • 9,710 points • 1,229 views

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A simply call:

cat /dev/usb/lp0

This should work if your printer supports bi-directional communication via USB.

Tested with a Zebra label printer this way:
 

$> echo "~HQES" > /dev/usb/lp0 && cat /dev/usb/lp0 PRINTER STATUS ERRORS: 0 00000000 00000000 WARNINGS: 0 00000000 00000000

answered Apr 20, 2022 by Rahul
 • 9,680 points
edited Mar 5

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