Filled to the brim with genuine Hewlett Packard black ink, the L0R40AE produces prints with incredibly precision that look simply astounding. This is thanks to Hewlett Packard`s many year of experience as an industry leader in inkjet printing technology.The HP 957XL black ink cartridge boasts a page yield that is three times that of the standard capacity HP 953. This fact alone makes the Hewlett Packard L0R40AE`s cost per page much lower and makes it a very economic way of running the HP Officejet Pro 8740 and all other compatible printers.