Ink jet recording apparatus constructed to detect a properly mounted ink cartridge
AssigneeCanon Kabushiki Kaisha
InventorsShinya Matsui, Tetsuo Suzuki, Hiroyuki Inoue, Soichi Hiramatsu
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Abstract
An ink cartridge, removably mountable on a fixed mounting portion of an ink jet recording apparatus for supplying discharged ink to a recording head carried on a movable carriage of the apparatus, comprises a flag member mounted for protrusion and retraction, an arrangement for protruding the flag member toward a path along which the carriage is moved when the ink cartridge is mounted on the mounting portion, and a photosensor mounted on the carriage in a position where it will be shielded from light by the protruding flag member.
Claims3
An ink cartridge removably mountable on a fixed mounting portion of an ink jet recording apparatus, said ink cartridge supplying ink to a recording head for discharging the ink, the recording head being carried on a movable carriage of said apparatus, said ink cartridge comprising:
- a flag member mounted for protrusion and retraction;
- and
- an opening-closing member for opening and closing according to mounting of said ink cartridge on and dismounting of said ink cartridge from said ink jet recording apparatus,
- wherein in a state that said ink cartridge is not mounted on the ink jet recording apparatus, said opening-closing member is in a closed state to keep said flag member retracted in said ink cartridge, and in a state that said ink cartridge is mounted on the ink jet recording apparatus, said opening-closing member is in an open state to allow said flag member to project outside of said ink cartridge.
Dependencies are inferred from the claim text.