Epson WorkForce Enterprise AM-C400 ink cartridge, cyan

The supplier gives the cartridge the product name WorkForce Enterprise AM-C400 but no separate compatibility list. The product name is therefore the main clue to which printer the consumable is for. Pay attention: AM-C400 and AM-C4000 differ by a single zero, yet in the supplier's data they are different products. Compare your printer's model label with the cartridge name before replacing it.

Cyan is one of the three base colours from which a printer mixes every other shade. With magenta it forms blues and purples, with yellow it forms greens. Technical drawings, blue headings, maps and cool-toned photos consume the most cyan. When it starts running out, greens and blues are the first to lose their clarity.

Epson is listed as the manufacturer, which means an original cartridge rather than a third-party compatible one. The manufacturer's own cartridge is made for that manufacturer's printer, and its ink behaves the way the machine expects. That matters most when the colours of printouts must stay consistent across jobs printed on different days.

This cartridge contains cyan only; magenta and yellow with the same product name are separate cartridges. So when one colour runs out you replace only the empty cartridge, not a whole set. The supplier does not disclose a page yield, so track cyan consumption from the printer's readings and keep a spare if needed.

It is meant for offices running an Epson WorkForce Enterprise printer whose documentation calls for the AM-C400 cyan cartridge. If you prefer the manufacturer's original consumables and like to replace colours one at a time, this is the cartridge to use, provided the model name matches your printer's documentation.