I need help implementing the ^HV ZPL command and to capture it as the host.
I want to read the TID and encode it to the EPC using Python, i can send print and encode command to the printer but how do i read back from it ?
If I'm using the "Direct Communication" program in the Zebra Setup Utilities tool i can get the TID back in the "Data received" window.
Ive tried using TCP/IP but i dont know how to pull the info just to print
But how can i capture it using python ?
Communicating with a Zebra printer over TCP is the same as any other TCP connection. If the question is how to use the ^HV command, it is usually put into a stored format. The response happens when you use the format to print. Here's a snippet I modified from wiki.python.org.
#!/usr/bin/env python import socket TCP_IP = '127.0.0.1' TCP_PORT = 9100 BUFFER_SIZE = 1024 FORMAT = "^XA^DFE:TEST.ZPL^FO30,30^A0N,50,50^FN1^FS^HV1,15,[,],^FS^XZ" PRINT = "^XA^XFE:TEST.ZPL^FN1^FDHELLO WORLD^FS^XZ" s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((TCP_IP, TCP_PORT)) s.send(FORMAT) s.send(PRINT) data = s.recv(BUFFER_SIZE) s.close() print "received data:", data