Exchangeable inkjet cartridge has its own memory chip containing data relating to it, e.g. date of manufacture, and a transponder for wireless communication with the host printer to enable more reliable printer operation

摘要

Inkjet cartridge (4) has a wireless transponder (6,8) that connects to a memory chip (7) within the cartridge and enables wireless communication and electrical power transfer between the memory chip (7) and another data transfer transponder (10, 11) belonging to the inkjet itself and thus connecting to the inject data bus.