I've been recently asked to estimate the cost of ink for our business documents. Those documents are comprised mostly of text, some formatting frames (which may be colored), and few (most often no) images. While discovering this subject I've come across the paper coverage concept and APFill Ink Coverage Calculator software, which gives me the ink coverage of any of my documents. However, while browsing I haven't been able to find if the ink consumption/ink coverage is constant or not.
To make the matter clearer : our most used printer model in the company is the Brother MFC 8520-DN, for which two types of toner are being sold. The first can print 3 000 pages (each at 5% coverage, as specified by ISO : https://www.stinkyinkshop.co.uk/articles/what-does-5-page-coverage-mean), the second does 8 000 pages.
I understand that ink consumption can be modified by several factors : humidity, how often is the printer used/left turned on and lots more. However, putting those factors aside (no small task, I admit), will for instance the first toner print in total 1500 pages if each has a 10 % coverage ?
All this to give the best estimate of what will cost each of our template of business documents.