Patent ID: 8517525

Claim:
An ink cartridge for an inkjet printer, said ink cartridge comprising: a cartridge body and a detection mechanism for detecting said ink cartridge and an ink level, wherein said cartridge body comprises an ink storage cavity for storing ink and an ink outlet for conveying ink to a printhead of said printer; said detection mechanism for detecting said ink cartridge and the ink level comprises a first detection component matched with a first sensor on said printer, a second detection component matched with a second sensor on said printer, and an offsetting component; said second detection component comprises a movable member and a shaft arranged inside said cartridge body; said movable member is connected with a rotating shaft of said cartridge body through said shaft; and said ink cartridge for said inkjet printer also comprises a tension generating component generating a tensile force to drive said movable member to move towards the direction opposite to the ink cartridge installation direction.