I want to honor big thermal printer to print qr code, but can only print monochrome bitmap, is how to implement in the pb will be converted to monochrome bitmap picture?

CodePudding user response:

Processing images should be to find a third-party DLL, pos printer to print qr code there is another way of thinking, the direct use of esc pos command to output the printout, such print qr code recognition rate is higher

CodePudding user response:

If use the esc pos instructions how to do, how to obtain the content of the qr code?