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DantSu / ESCPOS-ThermalPrinter-Android

Useful library to help Android developpers to print with (Bluetooth, TCP, USB) ESC/POS thermal printer.
MIT License
1.22k stars 367 forks source link

Images not printing on USB connected NCR 7199 #298

Closed zob closed 2 years ago

zob commented 2 years ago

Hi. Great work here ;)

Do you have any experience wih NCR printers? I'm trying to make a NCR 7199 connected via USB to an Android tablet print with the help of your library. While I can make text and, with a few modifications to the EscPos commands, QR codes print, I seem to have no luck with images. On the screenshot you can see how your "demo-receipt" prints (for the purpose here I have commented out the qr, and the barcode). On top is what should be the image. To the left is without the useEscAsteriskCommand and to the right is useEscAsteriskCommand(true) - here is actually a little bit of the image.

20220512_100542

Westflag commented 2 years ago

Hi! I have the same issue. I tried to use this command and it seems like you already implemented it, but it works a bit wrong for me. I have the same result as above.

image

Here is printer specifications

image

More info here: https://www.ncr.com/product-catalog/ncr-printer-7199-single-station

@DantSu Can you help?

DantSu commented 2 years ago

Can't help you, on my printer everything is ok, by USB and Bluetooth.