How is page yield defined?
Page yield is defined in ISO/IEC standards. Definitions vary, depending on printing technology. ISO/IEC 24711 is the standard for colour inkjet cartridges, the essence of the test is defined as a mixture of images and text in different quantities to achieve an average of 5 percent coverage per colour per page (for an aggregate total of approximately 20 percent page coverage). Monochrome laserjet cartridges are covered by ISO/IEC 19752, and colour laserjet cartridge tests are defined in ISO/IEC 19798.
What is a Cartridge Family?
In Pfeiffer terminology, a Cartridge Family is a way to identify the cartridge models that "belong together", i.e. that are typically used in the same printer.
In cases where there is only one single code for all cartridges, this is obvious, e.g. with a HP 564. Looking at Canon PGI-5 and CLI-8, these too are part of a cartridge family, but you just would not know - unless you "think" inks. The Black cartridge is a PGI-5, and the colours are coded CLI-8. To help you making that connection, additionally to printer compatibility information, we give you this extra bit of information, so you can piece it together more easily. Note that this info is based around the OEM Codes.
What is ISO/IEC 19752?
ISO/IEC 19752 is the standard that is used to determine the page yield of a monochrome laser printer cartridge.
What is ISO/IEC 19798?
ISO/IEC 19798 is the standard that is used to determine the page yield of a colour laser printer cartridge.
What is ISO/IEC 24711?
ISO/IEC 24711 is the standard that is used to determine the page yield of a colour inkjet printer cartridge.
What is page yield of a printer cartridge?
Page yield is the approximate number of pages that can be printed with a printer cartridge.
Why are you quoting up to four cartridge codes for one printer cartridge?
The same cartridge may have different codes in different parts of the world. Since we are living in a global and mobile society where people move around and purchase things online or in other countries, it may be useful to show all codes for one cartridge to make it easier for you to find the right cartridge for your printer. Regardless of where you have bought it.