For the following Printers
Epson Stylus Photo R1900
5 Colour Composite Yield: Approximately 915 pages based on ISO/IEC24711 and 24712 test suite.
The printer ships with full ink cartridges and part of the ink from the first cartridges is used for priming the printer. Yields vary considerably based on the images printed, print settings, paper type, frequency of use and temperature.
To ensure ongoing print quality and trouble free operation, a variable amount of ink remains in cartridge after the Replace Cartridge indicator comes on.