Re: How to send native printer commands (escape codes) directly to the printer ?

From:
Knute Johnson <nospam@rabbitbrush.frazmtn.com>
Newsgroups:
comp.lang.java.programmer
Date:
Wed, 25 Nov 2009 11:38:35 -0800
Message-ID:
<4b0d87bb$0$1308$b9f67a60@news.newsdemon.com>
Knute Johnson wrote:

Krist wrote:

Hi all,

How can I do it in Java , access printer port and send native printer
commands (escape codes) directly to the printer ?

Thank you very much,
Krist


You should be able to open a stream to the printer port and write your
commands. I don't have a parallel printer to try it with but I try a
test with the serial port and get back to you.


It works fine with the serial port on Windows XP so it should work with
the parallel printer port as well. I think Linux will also work the same.

import java.io.*;

public class test {
     public static void main(String[] args) throws Exception {
         FileWriter fw = new FileWriter("COM2");
         BufferedWriter bw = new BufferedWriter(fw);
         bw.write("Hello World!\r\n");
         bw.close();
     }
}

I connected my COM1 to my COM2 through a null modem and read the data
with HyperTerminal. To configure the port settings you need to use the
MODE command. I believe that Linux has a similar command but you won't
need this for the parallel port as there is nothing to configure.

--

Knute Johnson
email s/nospam/knute2009/

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