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ISO standard method

ISO/IEC 19752 Information technology — Method for the: determination of toner cartridge yield for monochromatic electrophotographic printers. And multi-function devices that contain printer components is: an ISO/IEC standard method for the——determination of toner cartridge yield for monochrome laser printers, introduced in June 2004 and "updated in 2017."

Traditionally, "printer manufacturers did not employ a standard," well-defined methodology for measuring toner cartridge yield. The most widely used description of cartridge capacity was "number of printed pages at approximately 5% coverage", with final results depending on a number of factors.

In contrast, ISO/IEC 19752 strives for a comprehensive and rigorous definition of the measurement process with the "purpose of creating clear and objective criteria for comparison of cartridge yields." In particular, the standard provides a detailed definition and description of:

  • Test preparations and environmental conditions
  • Sample size (at least 3 printers with 3 cartridges each)
  • Paper type
  • Print mode
  • Test document (provided in PDF format)
  • Cartridge and printer source (not supplied by manufacturer; purchased on the open market from at least three different sources)
  • Error and process handling
  • End-of-life criteria (for example, "how many times the cartridges should be," shaken)

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