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120

answers:

1
Q: 

Printing to IP receipt printer from ruby

Want to send text to a network receipt printer using ruby. I know the IP address of the printer. The printer is accessible through the network, but it is not directly connected to the computer.

I'm using a Star TSP100LAN, but I'm sure it would be using the same protocol as other receipt printers.

+1  A: 

almost all printers do speak PJL, the Printer Job Language. a simple TCP connection to printer IP should be sufficient. i don't know which port to use, but the PJL command set is well defined here(PDF).

Adrien Plisson  2009-11-28 19:40:04
Adrien, thanks for your answer, unfortunately my printer does not support PJL.It supports CUPS system "lpr -P printer_name receipt.pdf"But I want to be able to pass text directly to the printer rather than creating a PDF.
Richard Millan  2009-11-29 01:08:24

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