Epson WorkForce Enterprise AM-C4000 ink cartridge, cyan

Cyan is one of the three colours from which a printer mixes every other shade. With magenta it creates blues and violets, with yellow greens. Floor plans, diagrams, print work with blue design elements and sea-toned photos use more cyan than any other colour. When it runs out, cool tones are the first to lose their correct shade.

This cartridge's data has no separate compatibility field, but its supplier product name is WorkForce Enterprise AM-C4000. The magenta and yellow AM-C4000 cartridges of the same series list WorkForce Enterprise AM-C4000 in their compatibility field. Check your printer's label: it should read AM-C4000, not AM-C400, which is one zero shorter.

Epson is listed as the manufacturer. That means an original consumable whose ink and construction are designed for a printer from the same maker. On a large machine shared by a whole office, predictable operation and consistent colour matter: every printout, whether a presentation or a report, looks the same even after a cartridge change.

The cartridge contains cyan only. Magenta and yellow are separate AM-C4000 cartridges, so each colour is replaced when it has genuinely run out. The supplier does not disclose a page yield (the field reads N/A), so the best way to plan stock is the printer's own ink level plus your past experience.

It is meant for organisations running an Epson WorkForce Enterprise AM-C4000 that want to use the manufacturer's original consumables. If the printer works under heavy load, keep a cyan in reserve so that running out of blue tones does not interrupt a long print job halfway through.