Hi There,

I am using Epson stylus Pro 7800 printing on 17 and 24 inches roll paper.

Noticed the [output resolution for printers] limits to Max-360 PPI.
Attached please find the example of the red area in my screenshot.

But my Epson Stylus Pro 7800 : Maximum Resolution = 2880 x 1440 dpi from Epson.com.
https://files.support.epson.com/htmldocs/pro78_/pro78_rf/infor_1.htm

I have another Epson WF-7710: Maximum Print Resolution: 4800 x 2400 dpi.
Which is limit to Max-600 PPI.

Is there anything wrong with my setup or settings that I can change to use the max resolution?


Thank you!

Right.  That "Max 360 PPI" is what the printer driver is reporting to Windows as the requested input resolution (resolution of the images being printed).  The printer will still print at its maximum resolution as long as you have it set to highest quality in the driver and you select a good photo paper.  Most Epson drivers default to 360 PPI (which is what the driver requests for the image resolution) especially when using larger paper sizes, but there's a setting in the driver called "Finest Details" that you can check and that will increase this "native driver PPI" from 360 to 720.  The reason for the difference is that it takes a lot of printer dots (DPI) to resolve the color detail in one pixel (PPI).

Regards,
Mike