escpos

A relatively simple task is turning into hours of frustration so here goes: I have various Thermal printers and we print to the using the RawPrinterHelper that Microsoft posted. Usually use a String builder build the string and call the SendStringToPrinter and we have a printed piece of paper. I'm trying to print a simple barcode via the ESC/POS commands that are supported. WE use these for other functions (cutting, change font sizes) that all works, the barcode refuses to print. ESC POS Command is : GS k m n d1 d2 … dn m：barcode type e.g. n：barcode length -indicates the number of bar code

I searched little bit for emulation of ESC/POS printer, but didn't found any thing more, then data parsers like this . In few words, I have Linux, I have device connected to my PC via UART/RS-232 port. I need some soft, that will listen to specific COM port, and visualize data sent to be printed to this port (in example saves it as PDF). I don't think there is an out of box solution, but if you can capture the data (and it is a simple enough subset of esc/pos) you could then feed it to a tool like esc2html + wkhtmltopdf. https://github.com/receipt-print-hq/escpos-tools https://wkhtmltopdf.org/

I want to print a bitmap logo file with ESC POS command ESC*. Following is the link for technical documentation of the command. https://reference.epson-biz.com/modules/ref_escpos/index.php?content_id=88 According to me, the printer requires the image data in the form of 1s and 0s. So, it prints a dot, with the occurrence of 1 and blank, with the occurrence of 0. But I am not able to figure out how to send multi line bit image data with the help of above command, since the command accepts only the image data in the horizontal direction. Please help me with the problem. ESC * is one of several