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Definition: inkjet cartridge

A replaceable unit that holds ink and the print nozzles for inkjet printers. A separate cartridge for each of the four CMYK colors is the most efficient. Low-cost printers include cyan, magenta and yellow inks in one cartridge, requiring the entire unit be replaced when one color is empty. The least efficient is a single cartridge that contains all four colors.

More Than Four Cartridges
Although the four CMYK inks are the standard for color printing, inkjet manufacturers have added inks of varying colors, claiming an improvement in the overall result. First in higher-end inkjet printers, six- and eight-cartridge printers followed in consumer models after the turn of the century. See ink coverage.

Eight Inkjet Cartridges
ColorSpan's Giclee PrintMakerFA printer uses standard cartridges that are tethered to larger reservoirs via the tubes which are visible in this picture. The four additional cartridges (light and medium cyan and magenta), combined with ColorSpan's software, produce 1,200 dpi images with very subtle gradations. (Image courtesy of ColorSpan Corporation.)