Patent ID: 6170940
Filing Date: 2001-01-09
Classification: B41J

Abstract:
An ink-supply tank in combination with an ink-jet type recording unit having a first part, a second part, and a lever, wherein each of the first part and second part are positioned to engage the ink-supply tank, said ink-supply tank comprising:a unitary ink tank housing formed as a single disposable unit for mounting in and removal from the recording unit, said ink tank housing including at least one side wall having an edge, said at least one side wall further having a top and a bottom, said ink tank housing further including a top wall adjacent to the top of said at least one side wall and having first, second, and third edges, said ink-supply tank being formed with at least one ink-supply section having an ink-supply delivery port; andat least one positioning member (53) projecting from one of said first edge and said third edge of said top wall of said ink tank housing, said at least one positioning member being engageable with the first part (613c) of the recording unit at least when said ink tank housing is being mounted in and removed from the recording unit, wherein said at least one positioning member comprises a pair of side ribs (53), wherein one side rib projects from the first edge of the top wall, and another side rib projects from the third edge of the top wall of said ink tank housing,wherein said pair of side ribs is formed at a side of said ink-supply tank where the ink-supply delivery port is formed, and a back side of at least one said ribs receives an upward force from the first part (613c) of the recording unit while the lever (613) is being raised for removing the unitary ink tank housing from the recording unit.