how to print from android phone to hp wireless printer

The new HP DeskJet 2131 inkjet printer, according to the instructions installed after the installation of the computer, the discovery Scan, copy function is normal use, except printing function can not be used normally.The problem is as follows: Print the test page in the installed printer Assistant can output normall

("Dfgdgs");/set QRCode content Esc.addprintqrcode ();//print QRCode esc.addprintandlinefeed (); /* Print text */esc.addselectjustification (EscCommand.JUSTIFICATION.CENTER);//set to print left-aligned esc.addtext ("completed!\r\n"); Print end//Open Cash Box Esc.addgenerateplus (LabelCommand.FOOT.F5, (byte) 255, (byte)

Mobile phone Bluetooth control relay wireless lock Iot Android source code android development Android WIFI control detailed annotation test stability no bug, android Android I. functio

This article is an example of Android to check whether the phone and wireless connection to the implementation code, share for everyone to reference. The specific methods are as follows: Method One: The main functional code is as follows: Copy Code code as follows: Connectivitymanager manager = (Connectivitymanager) getsystemservice (Context.con

Internet access through the router, if the use of the environment, the ios/android system wireless terminals can not search the router signal, you may follow the following methods to troubleshoot: [IOS] Do not search for wireless signal When the wireless terminal is unable to search for a signal, verify that the

Are you still using a USB cable to connect your mobile phone to access sdcard ?, You are out. This article will tell you that if you connect your laptop to your mobile phone through wifi and quickly access sdcard, you certainly do not need a wireless router. Prerequisites The laptop system is windows 7, and the wireless