Max Resolution Sizes for Various Paper Sizes?

[macattack]

Supposedly the conversion ratio of pixels to printer dots is about 300 dots per inch == 118.11 pixels per inch => 2.54 according to this article: https://medium.com/@onlinelogomaker...pi-ppi-resolution-and-image-size-b42328e7ed22

So if your printer's high quality mode is 720DPI, it's 285PPI on your screen.

So the max pixel resolution of common borderless print sizes @720dpi are:
4x6in = 1140x1710 (~1080p / 1.9MP)
8.5x11in = 2423x3135 (~4k / 7.5MP / ~A4)
11x17in = 3135x4845 (~5k / 15.1MP / ~A3)

But on the other hand, there are a bunch of tests done here which makes the above calculations kind of hard to measure. Has anyone made a table to figure out what how many pixel per inch is equivalent to X amount dots per inch on the high quality mode of various printers? For example my ET-7750 says "Maximum Print Resolution: 5760 x 1440 optimized dpi", which seems higher than the typical 720dpi quoted in 'high' quality printing. But on the other hand it seems like most printers can't print out a 1px resolution, which you would think would be possible with something like 720 or 5760x1440 (whatever that means) DPI print jobs.

I'm also guessing that the paper matters too. Glossy paper probably shows more resolution than matte photo paper which shows more than super smooth card stock or typical copy paper is my guess.

 

[Ink stained Fingers]

I don't see a need to print an image with 300 dpi under all conditions - one important parameter is the viewing distance and completely kept out of discussion. Please have a look to earlier discussions of print resolution here
https://www.printerknowledge.com/threads/current-inkjet-printers-resolution.14152/#post-122858

 

[The Hat]

I'm also guessing that the paper matters too. Glossy paper probably shows more resolution than matte photo paper which shows more than super smooth card stock or typical copy paper is my guess.

There’s no point in your printer outputting high quality on super smooth card or copy paper because when the ink dots land to close together the image quality suffers greatly, that’s why it’s advisable to use standard or lower quality output, which will improve the overall image quality..

 

[Ink stained Fingers]

I'm also guessing that the paper matters too. Glossy paper probably shows more resolution than matte photo paper which shows more than super smooth card stock or typical copy paper is my guess.

Critical is the ink spread, the dot gain of the ink on the paper which is very much a matter of the coating on the paper, copy paper is not specifically coated for use with inkjet printers, and another factor is the ink itself - whether it's a dye or a pigment ink.