Hello ( Printing device and computer stickers that contain images )
I want to start printing small size DIY professional looking stickers. Tried all Dymo and Brother small printers that connect to PC and they are low DPI<300 and create very pixelated edges. So no anymore to these.

Any cheap about:100-200usd$ industrial Chinese professional thermal printer black&white to recommend ? ( or similar sticker printer )
To print black&white image stickers at high DPI and ending professional looking.
What kind of sticker making device do I need ?

I don't need any colors just high DPI and print tape width like 30mm or even 40mm.