Epson Ink Cartridge Yield Testing

by Pete on May 15, 2008

Epson now provides ink cartridge yields based on the ISO/IEC 24711 and 24712 standard for inkjet products.

The new ISO standard is widely recognised as the most reliable method to test inkjet printers under standard conditions for the purpose of comparing achievable ink yields from various competitive printers.

Yields may vary considerably based on images printed, print settings, paper type, frequency of use, humidity and temperature. Since no single yield standard can duplicate a customer’s actual printer usage, 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.

The ISO/IEC 24711 and 24712 standard was created by the International Standards Organization for Standardization (ISO) .with the support of national standards institutes throughout the world, independent experts and industry representatives. Representatives from Epson, Canon, HP, Lexmark and other industry-leading manufacturers worked extensively to achieve a standard that provides customers with a reasonable basis for comparing printer performance.

The following is a brief summary of Epson’s yield testing, conducted in accordance with the ISO/IEC 24711 and 24712 standard:

- Tests are conducted with at least three printers, each using at least three cartridges of each model, not including the first set of installed cartridges.

- A suite of five patterns (shown on the individual product yield pages) is printed continuously, in consecutive order. Cartridges are replaced when the printer indicates cartridges are expended and will not print without replacing the cartridge.

- Testing is conducted at a controlled temperature in Default Mode on plain paper with print commands from a late model PC with a Microsoft Windows operating system.

- In recognition of various factors that can affect yields, declared yields are rounded down (not up) in amounts that are at least sufficient to fulfill the standard deviation formula built into the ISO standard to assure accuracy and reliability.

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