I don't know where else to turn with my problem, so I'll try here. I have an Epson ET-2710 and it's working fine... as long as I only print in the A4 format. I've told the printer in the settings to print 10x15cm (4x6 inches) but for some reason the picture I'm trying to print is offset a lot and not even in the correct orientation. Even worse, when I try to change the orientation from vertical to landscape the picutre is not even on paper anymore.
Here are a few screenshots of my problem (Currently trying to print a scanned Magic card to calibrate my printer so I can make my own card game). Screenshots were too big to be posted here it seems, so here's a link to imgur with my problem: https://imgur.com/gallery/7OpdabD