All brands of printers used to be based on a limited network, through the driver on the PC to print, and after the popularity of WIFI, each manufacturer has a corresponding program, you can print in a wireless environment through google print or airprint, without going through the PC. Both wireless and wired networks can be used, and these two environments are for different application scenarios, if you are in the office, of course, it is better to use a PC, but if there is no network, then it is more convenient to use wifi to print. Of course, google print or airprint printing is more difficult to formulate. At present, many manufacturers have wechat direct printing solutions. HP can directly print through the Internet of Things by cooperating with QQ, while EPSON and Imei use the method of direct printing through wechat. If there are corresponding brand machines, you can try them out.