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US4734719A Expired / Lapsed US ⏱️ 0.0 years remaining

Capping device and liquid injection recording apparatus

Assignee: Canon Inc
•
Filing: 1987-02-17
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Granted: 1988-03-29
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Expires: 2007-02-17
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Abstract

Abstract This specification discloses a capping device having a cap for capping orifices for discharging liquid, and a moving structure for moving the cap, wherein a plurality of engaging members each have an engaging portion adapted to be engaged with a protrusion during the capping, and a releasing structure for moving at least one of the engaging members and releasing the capping. The specification also discloses a liquid injection recording apparatus provided with such capping device and a pump device for generating a pressure utilized to such the liquid from the orifices through the cap, a protrusion being provided in operative association with the movement of a member for effecting the pumping operation of the pump device.

Inventors

  • 👤 Tetsuo Suzuki

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 02:47
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/165; B41J2/16517; B41J2/1652; B41J2/16523; B41J2/16505; B41J2/16508

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 150 words
A capping device comprising: a cap movable between an open position spaced from a head of a liquid injection recording apparatus and a capping position in which said cap is moved toward the head for capping orifices in the head for discharging liquid, moving means for cooperating with said cap and with pump means for discharging liquid through the orifices, said moving means being movable between a plurality of positions to move said cap between the open and capping positions thereof and to operate the pump means first and second engaging members, each having an engaging portion adapted to be engaged with said moving means to restrict movement thereof, wherein moving said moving means to one of the positions thereof disengages said moving means and said second engaging member and releasing means for moving at least said first engaging member to disengage said moving means and said first engaging member.
Claim 2
Dependent Claim 150 words
A capping device comprising: a cap movable between an open position spaced from a head of a liquid injection recording apparatus and a capping position in which said cap is moved toward the head for capping orifices in the head for discharging liquid, moving means for cooperating with said cap and with pump means for discharging liquid through the orifices, said moving means being movable between a plurality of positions to move said cap between the open and capping positions thereof and to operate the pump means first and second engaging members, each having an engaging portion adapted to be engaged with said moving means to restrict movement thereof, wherein moving said moving means to one of the positions thereof disengages said moving means and said second engaging member and releasing means for moving at least said first engaging member to disengage said moving means and said first engaging member.
Claim 3
Dependent Claim 20 words
A capping device according to claim 1, wherein said moving means includes a protrusion for cooperating with the pump means.
Claim 4
Dependent Claim 18 words
A capping device according to claim 1, wherein said engaging members move in response to said moving means.
Claim 5
Dependent Claim 16 words
A capping device according to claim 1, wherein said releasing means has an electro-mechanical converting member.
Claim 6
Dependent Claim 15 words
A capping device according to claim 4, wherein said electro-mechanical converting member is a solenoid.
Claim 7
Dependent Claim 23 words
A capping device according to claim 1, wherein said cap has a cap holder and a rubber cap provided in said cap holder.
Claim 8
Dependent Claim 28 words
A capping device according to claim 1, further comprising a spring member, and wherein said engaging members bear against a stopper with the aid of said spring member.
Claim 9
Dependent Claim 187 words
A liquid injection recording apparatus comprising: head means defining orifices for discharging liquid, a capping device having a cap movable between an open position spaced from said head means and a capping position in which said cap is moved toward said head means for capping said orifices for discharging liquid, moving means movable between a plurality of positions to move said cap between the open and capping positions thereof, pump means for generating a pressure for sucking the liquid from said orifices through said cap, said pump means having an operating member for effecting the pumping operation of said pump means, a protrusion on said moving means for cooperating with said operating member when said moving means is in one of the positions thereof, first and second engaging members, each having an engaging portion adapted to be engaged with said moving means to restrict movement thereof, wherein moving said moving means to one of the positions thereof disengages said moving means and said second engaging member, and releasing means for moving at least said first engaging member to disengage said moving means and said first engaging member.
Claim 10
Dependent Claim 187 words
A liquid injection recording apparatus comprising: head means defining orifices for discharging liquid, a capping device having a cap movable between an open position spaced from said head means and a capping position in which said cap is moved toward said head means for capping said orifices for discharging liquid, moving means movable between a plurality of positions to move said cap between the open and capping positions thereof, pump means for generating a pressure for sucking the liquid from said orifices through said cap, said pump means having an operating member for effecting the pumping operation of said pump means, a protrusion on said moving means for cooperating with said operating member when said moving means is in one of the positions thereof, first and second engaging members, each having an engaging portion adapted to be engaged with said moving means to restrict movement thereof, wherein moving said moving means to one of the positions thereof disengages said moving means and said second engaging member, and releasing means for moving at least said first engaging member to disengage said moving means and said first engaging member.
Claim 11
Dependent Claim 18 words
A liquid injection recording apparatus according to claim 8, wherein said releasing means has an electro-mechanical converting member.
Claim 12
Dependent Claim 17 words
A liquid injection recording apparatus according to claim 9, wherein said electro-mechanical converting member is a solenoid.
Claim 13
Dependent Claim 22 words
A liquid injection recording apparatus according to claim 8, wherein said moving means includes a lever for cooperating with said operating member.
Claim 14
Dependent Claim 22 words
A liquid injection recording apparatus according to claim 8, wherein said moving means includes a cam for cooperating with said operating member.
Claim 15
Dependent Claim 27 words
A liquid injection recording apparatus according to claim 8, wherein said releasing means is rendered inoperative for a predetermined time after the operation of said pump means.
Claim 16
Dependent Claim 30 words
A liquid injection recording apparatus according to claim 13, wherein the start of said time is effected in conjunction with the movement of said member for effecting the pumping operation.
Claim 17
Dependent Claim 25 words
A liquid injection recording apparatus according to claim 8, wherein said cap has a cap holder and a rubber cap provided in said cap holder.
Claim 18
Dependent Claim 30 words
A liquid injection recording apparatus according to claim 8, further comprising a spring member, and wherein said engaging members bear against a stopper with the aid of said spring member.

References Cited (Backward Citations)

US3786964A Cited
US4159067A Cited
US4371881A Cited
US4441110A Cited
US4556894A Cited
US4551735A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-03-29 1991-09-28 1992-03-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-03-29 1995-09-28 1996-03-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-03-29 1999-09-28 2000-03-29 $7700.00 Window Closed / Lapsed

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