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Consumers want to make informed decisions when buying printers and printing supplies. While printing capabilities, print quality, speed, product features and ease-of-use are typically the most important considerations, customers often want to compare costs as well. HP offers a broad range of printing systems with different capabilities, purchase price combinations and ongoing operating costs in recognition of the fact that customers have different needs. When comparing costs, consumers need to look at a range of factors, including quality, reliability and productivity. Measurements of page yield and related estimates of cost-per-page (CPP) are one part of the economic picture. To help customers make the best choice of printing system to meet their needs, HP seeks to provide meaningful information about all of these decision-making factors. This article will discuss monochrome LaserJet yield measurement.
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In June 2004, the International Organization for Standardization (ISO) published the ISO/IEC 19752 toner cartridge yield standard for monochrome laser printers. HP actively participated in developing this standard and enthusiastically supports its industry-wide use. The standard addresses a broad range of important factors that affect yield and yield measurement including the test document, print job size, print quality modes, end-of-life determination, sample size and environmental conditions. A broadly adopted standard of this rigour represents a breakthrough in giving customers yield information that can be accurately compared.
Because of the standard's robustness and consistency, the industry-wide participation in developing it and ISO's unbiased, global approach, HP believes that the standard results in important benefits for customers and the printing industry. Therefore, HP adopted the ISO/IEC 19752 standard for measuring monochrome LaserJet print cartridge yield. HP is also participating in the development of ISO industry yield measurement standards for colour laser and inkjet cartridges and printers. These standards will help to improve yield testing throughout the printing industry and allow true comparisons.
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ISO/IEC 19752 specifies a rigorous methodology for determining monochrome toner cartridge yield for monochrome laser printers including the following key provisions:
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Number of printers: Cartridges are tested on three different printers (three cartridges on each printer) to avoid bias due to printer variability.
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Controlled environment: The printing environment is controlled and consistent because temperature and humidity variations affect cartridge yield.
For reliable comparisons, cartridge yields from the products of different suppliers must be measured in accordance with a single, consistent standard. Cartridge yields determined using other methodologies are not comparable to those determined in accordance with the ISO standard.
HP monochrome LaserJet yield information published in accordance with the ISO/IEC 19752 standard is available on this website and will be published on monochrome LaserJet printer and print cartridge packaging. Print cartridge page yields can also be found by searching for the specific printer or cartridge in the product information available on hp.com.
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