Patent ID: 9545795
Date: 2017-01-17
CPC Classifications: B41J

Claim:
1. An ink cartridge detachably mountable to an inkjet printer, wherein the inkjet printer includes the ink cartridge and a plurality of ink cartridges of different types from the ink cartridge detachably mountable, a light receiver for receiving light and a plurality of apparatus electrical contacts which are commonly connected with a line, wherein the ink cartridge comprises: a container electrical contact electrically connected with corresponding apparatus electrical contact, an information storage device configured to at least store relevant information of the ink cartridge, a light-emitting portion configured to emit light towards the light receiver, and a control portion configured to control the light-emitting portion to emit light according to an emission instruction sent by the inkjet printer for controlling the light-emitting portion to emit light, wherein the emission instruction includes ink cartridge identifying information and state control information of the light-emitting portion; wherein the control portion of the ink cartridge controls the light-emitting portion of the ink cartridge to emit light when the emission instruction received by the ink cartridge is a same emission instruction for controlling a light-emitting portion of at least one of the plurality of ink cartridges of different types from the ink cartridge to emit light, wherein the ink cartridge identifying information included in the emission instruction identifies the at least one of the plurality of ink cartridges of different types but not the ink cartridge itself.