Patent ID: 8991989
Filing Date: 2015-03-31
Classification: B41J

Abstract:
1. An ink cartridge configured to be installed in a cartridge installation portion, comprising: a front wall; a rear wall opposite the front wall; a bottom wall extending between the front wall and the rear wall, wherein the bottom wall has a recess formed therein; an ink chamber configured to store ink and positioned between the front wall and the rear wall; an ink supply portion positioned at the front wall and configured to supply ink from an interior of the ink chamber to an exterior of the ink chamber; a protrusion positioned at the front wall below the ink supply portion; and an engagement portion configured to selectively protrude from the bottom wall for engagement with the cartridge installation portion and be received in the recess for disengagement from the cartridge installation portion, wherein the engagement portion is configured to apply a force away from the bottom wall of the ink cartridge.