# Using ruby-serialport to connect to a printer

**URL:** <https://www.ruby-forum.com/t/using-ruby-serialport-to-connect-to-a-printer/150395>\
**Category:** Ruby\
**Created:** [October 8, 2008, 2:20am UTC](https://www.ruby-forum.com/t/using-ruby-serialport-to-connect-to-a-printer/150395 "2008-10-08T02:20:54Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![ffighter](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/6f9a4e/32.png) [@ffighter](https://www.ruby-forum.com/u/ffighter)\
**Post date:** [October 8, 2008, 2:20am UTC](https://www.ruby-forum.com/t/using-ruby-serialport-to-connect-to-a-printer/150395/1 "2008-10-08T02:20:54Z")

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Hello all!

Does anyone know if there any API documentation for the ruby-  
serialport lib?

I’m trying to use it to connect to a Zebra ZPT500 printer on Linux  
(and Windows) in order to send raw ZPL instructions to it, but I’m not  
sure what \*params to pass and I didn’t find much documentation / API  
docs for the ruby-serial library. I’m not really into bit-level  
programming, so If someone could enlighten-me I would be really  
grateful!

Thanks in advance,

Marcelo.