Unless you are using a tiny 4k monitor (>9") its not going to be laser print quality.

The comment you're replying to made use of a simile, which is a figure of speech using "like" or "as" that constructs a non-literal comparison for rhetorical effect.

	▲	supermatt a day ago \| parent [-]
		A 21" 4k monitor is around the same resolution as a fax, so it was not really clear to me that it wasn't a literal comparison.