US 5,671,000 AGranted

Ink jet cartridge with separately exchangeable ink tank and recording head

AssigneeCanon Kabushiki Kaisha

InventorsHiromitsu Hirabayashi, Shigeyasu Nagoshi, Noribumi Koitabashi, Hitoshi Sugimoto, Miyuki Fujita, Fumihiro Gotoh, Masaya Uetsuki

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Abstract

An ink jet cartridge, removably mountable on an ink jet recording apparatus, includes a recording head and an ink tank containing recording liquid. The head and cartridge are removably connected through an engaging member provided on the ink tank and an engaged member provided on the recording head. When the ink tank and the recording head are not combined, a protecting cover provided on the recording head can protect sensitive components of the recording head, while partially overlapping the side of the link tank and being integrated therewith when the recording head and ink tank are combined.

Claims12

Dependent claims

An ink jet head of an ink jet cartridge removably mounted on a carriage of an ink jet apparatus and in which said ink jet head and an ink tank are separable from each other, said ink jet head comprising:

a head portion having a discharge opening for discharging ink,
an ink guide tube to guide ink from said ink tank to said head portion for discharge from said discharge opening and to be connected with said ink tank,
an electrode portion to receive a recording signal to be inputted in order to discharge ink from said discharge opening,
a first engaging member to be engaged with a first engaging portion provided in said ink tank and to secure a linking state of said ink tank and said ink jet head, and
a protective member to enclose and protect said ink guide tube and said first engaging member.

2 more elements

Dependencies are inferred from the claim text.