I want to print image using thermal printer through Bluetooth from Android device.

I connect Android phone to printer (printer model: XP-318B/XP-318BM) through Bluetooth then by using BluetoothPrint app I send command to print image, the printer started to print a part of image then it stopped for half second and than it resume printer then it stops for half second then resume and it continues like this until it finish printing the image, white rows appear at the places which the printer was stopping as in the image.

First, I thought it was a programming issue, so I connect the printer though USB and then printed the same image it perfectly printed, so I'm thinking it is the baud rate of the printer's Bluetooth. I search for two days with out any good results how to change the baud rate.

I found these tutorials, but I couldn't change the baud rate .

What can I do?

image 1

  • You state, "I found these tutorials, but I couldn't change the baud rate." What did you try? Did you use Bus Hound? Did you use IPrinter software? Were there error messages? What else have you done?
    – DrMoishe Pippik
    Nov 2 '20 at 16:49
  • Have you tried printing a lower resolution image?
    – Mokubai
    Nov 2 '20 at 16:52
  • 1
    I confess that I do not understand was a baudrate is, in relation to Bluetooth. The baudrate make a sense in relation to a serial interface, like RS-232. Bluetooth and USB have their own timing. Only when a serial converter is used, the baudrate has a significance.
    – Claude Frantz
    Nov 2 '20 at 17:00
  • Thank you for reply DrMoishe Pippik. yes, I did as the steps says even Bus Hound software said complete after pressing run button, but nothing changed, I also used Iprinter tool it connect to printer and I can print (print Test) from Iprinter, but when it comes to set baud rate nothing happen.
    – hatore
    Nov 2 '20 at 21:24
  • thank you for reply Mokubai . it is already low, the printer has the capability to printer it I tried it with USB and it print the same image perfectly fast and accurate.
    – hatore
    Nov 2 '20 at 21:30

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