i use this for my inkjet https://www.officeworks.com.au/shop/officeworks/p/hp-21-ink-…, it's advertised at 190 pages yet i estimate it's empty at 50 pages at most. how do they calculate this? i've had some of these catridges which probably lasted 20-25 pages, more than $1 per page.
most lasted ~40-50 pages. but some crapped out after 20-25, i know from experience. though it was over a long time, i didn't print all those pages in 1 day. does it dry that quickly? i never print pages with large black spots, only words and some very small logos occasionally.
Inkjet cartridges certainly do not last only 20-25 pages. You're mistaken unless it's the small sample ones that come with printers.
Here's how it's calculated: http://www.hp.com/pageyield/en-150/articles/inkjetPageYields…