Printer cartridge compatible with printhead

摘要

A ink printer cartridge is described that is compatible with a particular type of printhead. The printhead has a camming shoe having a horizontal pressing mechanism for pressing another type of ink cartridge and thereby mechanically holding the ink cartridge in place. The cartridge according to the present invention has a shape and size that it does not engage the camming shoe, rather the cartridge engages an interior surface of the top of the printhead. In this way, a cartridge can be constructed to be used in a printer having a printhead with a camming shoe, which does not use the camming shoe in any way whatsoever.