Question how to work with usb(send char to usb)

[meysam.savameri]

hi everyone.
i work with applicator(this device send label on product Pallet in warehouse)
so
i insert my record in database then must send "O1" to this devise for print label
how can i do?

 

[Bryce Gough]

What do you meen?
rename the device, put a file on the device...
Please specify what you want to do with "O1"

 

[meysam.savameri]

"O1" must send for device(usb) to print label
sorry for my bad english