Lexmark 78C2XCE Extra High Yield Contract toner cartridge, cyan, 5,000 pages

The manufacturer data lists the following printers for the 78C2XCE: CX622ade, CX625ade, CS421dn, CS521dn, CX625adhe, CX522ade, CS622de and CX421adn. The same cartridge therefore serves both CS-series printers and CX-series all-in-ones, which makes stocking supplies simpler in an office that runs several different Lexmark models.

Extra High Yield is Lexmark's label for a higher-capacity cartridge; this model is rated at 5,000 pages. The real figure depends on how much blue and green is on the page: a logo in the header uses little, full-colour slides and photos use a lot. Higher capacity means fewer replacements than a standard-capacity variant.

A colour laser printer mixes every colour from four toners, and cyan is responsible for blues and, together with yellow, for greens. When cyan runs out, blue chart bars fade and skies in photos turn greyish. Each colour cartridge is replaced on its own, so you only fit a new one for the colour that has actually run out.

The cartridge belongs to the Extra High Yield Contract product family. The manufacturer data for this item does not describe the terms of the Contract versions; such cartridges are generally used where a printer fleet is serviced by Lexmark under contract. To pick the right cartridge, compare the code 78C2XCE with the supply code in your printer menu or manual.

Offices and companies running one of the listed Lexmark printers, such as the CS521dn or CX522ade, with plenty of colour printing. It is especially handy for fleet administrators with several different models: one cartridge code covers eight printers, and keeping stock is simpler.