fecherwu

Using the following code will cause the qrcode to wrap. I want the qrcode to be at the same level. How can I modify it? thanks device.open(function () { printer...

The image cannot be printed completely

1

Hello, according to your method, I tried to write and print, but when I wrote the background, there was a branch when printing. How can I solve the problem of...

The image cannot be printed completely

1

Hello, according to your method, I tried to write and print, but when I wrote the background, there was a branch when printing. How can I solve the problem of...