Epson provides ink cartridge yields based on the ISO/IEC 24711 and 24712 standard for inkjet products, which excludes the first installed cartridges. Prior to creation of the new ISO standard, Epson and other printer manufacturers provided yields based on their own internal standards. The new ISO standard is widely recognized as the most reliable method to test inkjet printers under standard conditions or for the purpose of comparing achievable ink yields from various competitive printers.
Colour - T099220, T099320, T099420, T099520, T099620 (Standard-capacity): About 500 pages per color, an average yield of Cyan, Magenta, Yellow, Light Cyan, and Light Magenta
Black - T098120 (High-capacity): About 545 pages
Colour - T098220, T098320, T098420, T098520, T098620 (High-capacity): About 855 pages per color, an average yield of Cyan, Magenta, Yellow, Light Cyan, and Light Magenta
In accordance with the ISO standard for individual colour cartridges, colour yields are determined by taking an average yield, based on continuous printing, of all individual colour cartridges. Individual cartridges conveniently allow the user to replace just the colour of ink that has been expended. When using cartridges with combined colour tanks, as do some competitive products, several colours of ink must be replaced when one colour has been expended, so ISO ratings are based on the first colour to be expended.
Yields may vary considerably based on images printed, print settings, paper type, frequency of use, humidity and temperature. The printers ship with full cartridges, and a variable amount of ink remains in the cartridges after the "replace cartridge" signal. Part of the ink from the first installed cartridges is used for priming the printer. Since no single yield standard can duplicate a customer's actual printer usage, Epson recommends that customers also consider print yield comparisons from reputable independent sources.
Epson recommends that customers choose an inkjet printer based on their expected printing needs, considering page yields as just one factor of evaluation. Other important factors include image quality, fade resistance of prints, reliability and printer features.