Lexmark 79L2HK0 toner cartridge, black, 47,700 pages, CX833se/CX950se/CX951se

According to Lexmark, one 79L2HK0 cartridge lasts for 47,700 pages. That is a manufacturer figure, and the real result depends on page coverage: ordinary text documents come closer to the rated number, while pages with dark photos, filled areas and heavy table lines use toner faster. With a yield this high, the cartridge does not need frequent changes or constant reordering.

A colour printer builds the image from four toners: cyan, magenta, yellow and black. Offices mostly print text, so black toner usually runs out first. Each colour sits in its own cartridge, so you replace only the black and the colour cartridges stay in the printer. The same series also comes in cyan (79L2HC0), magenta (79L2HM0) and yellow (79L2HY0).

The supplier data lists the Lexmark CX833se, CX950se and CX951se as compatible printers. No other models are listed. The model code is shown on the front panel or label of the printer; if it is one of these three, the 79L2HK0 is its black cartridge. The same compatibility list applies to all four colours of the series.

The cartridge is made by Lexmark, so it is the printer maker's own consumable rather than a compatible copy. It weighs 0.80 kg. Since black runs out fastest in most offices, it makes sense to keep one spare in its original packaging in a cool, dry place and open it only when the printer reports low toner.

Offices and teams with a Lexmark CX833se, CX950se or CX951se that print a lot of black text, invoices and reports every day; admin and IT teams that keep consumables in stock and prefer the original; and companies that want a high-yield cartridge to reduce the number of swaps.