Print images maybe?

[fernandosada]

Hi! thank you for this code, i managed to get it to work in android browser via usb cable to an android tv box.
I have struggle to get an image print, do you manage to get it to work with images? i tried converting img to base64, then to hex, then byte arrays, all without success :/

[Gili60]

Hi, were you able to print images using WebUSB API?
I have an AngularJS app, I was able to print text to EPSON printer, however, I can not get image printing to work.
Any ideas what to do?

[drffej]

You have to communicate with the device using the EPSON ASCII print language. This article should help - https://www.visuality.pl/posts/webusb-print-image-and-text-in-thermal-printers

[fernandosada]

In my case, I ended up using an android app called "RawBT", which you can use to print in android with thermal printers. The idea is that you send the image via Javascript to the RawBT app, and the app handles the printing.

[Gili60]

Thanks for the replies.
Due to the nature of my app I have to use WebUSB API for the printing.
I tried printing images with ESC/POS commands but with no lock.
For now, I can not use any package typescript-based.

Regarding the article- https://www.visuality.pl/posts/webusb-print-image-and-text-in-thermal-printers
Do you know what is the image parameter that is being sent to the printImage function? what type?

Thanks for all the help.