Fixed Typo

print.py

@@ -4,7 +4,7 @@ import socket
 import json
 import os
 from flask import Flask, render_template
-from flask_cods import CORS
+from flask_cors import CORS
 
 CheckPrinterOnline = '7e4d3630312053310d0a'
 MachingInfo = "7e4d3131350d0a"