EP0317267A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Ink jet recording apparatus and discharge recovery device used with the same
Assignee: Canon Inc
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Filing: 1988-11-15
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Granted: —
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Expires: 2008-11-15
Abstract
Abstract A discharge restoring device for a ink jet recording apparatus, comprising a cap member (11) for covering a plurality of discharge openings (4) for discharging ink, and a suction means (P) for sucking the ink and/or air from the plurality of discharge openings through the cap member, wherein a main communication port (12) communicating the suction means with the interior of the cap member is provided at an upper portion of the cap member. Further, an ink jet recording apparatus comprising a recording head having a plurality of discharge openings provided along an up-and-down direction for discharging ink, a cap member for covering the plurality of discharge openings, a suction means for sucking the ink and/or air from the plurality of discharge openings through the cap member, moving means for moving the cap member in a position where the cap member covers the plurality of discharge openings, and drive means for driving the suction means after the plurality of discharge openings are covered by the cap member by means of the shifting means, wherein a main communication port communicating the suction means with the interior of the cap member is provided at an upper portion of the cap member and the ink and/or air are sucked through the main communication port by the suction means.
Inventors
- 👤 Masayuki Kyoshima
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 15:21
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/17; B41J2/18; B41J2/135; B41J2/145; B41J2/155; B41J2/165; B41J2/16517; B41J2/1652; B41J2/16532
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
67 words
A discharge recovery device for an ink jet recording apparatus, comprising: a cap member for covering a plurality of discharge openings for discharging ink; suction means for sucking the ink and/or air from said plurality of discharge openings through said cap member; and a communication port provided at an upper portion of said cap member for communicating said suction means with the interior of said cap member.
Claim 2
Dependent Claim
67 words
A discharge recovery device for an ink jet recording apparatus, comprising: a cap member for covering a plurality of discharge openings for discharging ink; suction means for sucking the ink and/or air from said plurality of discharge openings through said cap member; and a communication port provided at an upper portion of said cap member for communicating said suction means with the interior of said cap member.
Claim 3
Dependent Claim
23 words
A device according to claim 1, further including a second communication port communicating said suction means with the interior of said cap member.
Claim 4
Dependent Claim
21 words
A device according to claim 2, wherein said second communication port is provided at a lower portion of said cap member.
Claim 5
Independent Claim
30 words
A device according to any preceding claim, wherein said upper portion is defined to be above a position corresponding to a center of said discharge openings of respective recording head.
Claim 6
Dependent Claim
31 words
A device according to claim 4, wherein said upper portion is defined to be above a position corresponding to the uppermost discharge opening of said discharge openings of respective recording head.
Claim 7
Dependent Claim
73 words
A discharge recovery device for an ink jet recording apparatus, comprising: a cap member for covering a plurality of discharge openings for discharging ink; at least one suction means for sucking the ink and/or air from said plurality of discharge openings through said cap member; and a plurality of communication ports provided in said cap member and communicating with said suction means, wherein the ink and/or air are sucked through said communication ports.
Claim 8
Dependent Claim
73 words
A discharge recovery device for an ink jet recording apparatus, comprising: a cap member for covering a plurality of discharge openings for discharging ink; at least one suction means for sucking the ink and/or air from said plurality of discharge openings through said cap member; and a plurality of communication ports provided in said cap member and communicating with said suction means, wherein the ink and/or air are sucked through said communication ports.
Claim 9
Dependent Claim
24 words
A device according to claim 6, wherein a communication conduit communicating said suction means with the interior of said cap member includes a valve.
Claim 10
Dependent Claim
27 words
A device according to claim 6 or 7, wherein two communication ports are provided, said communication ports being positioned on both ends of said cap member respectively.
Claim 11
Independent Claim
32 words
A device according to any of claims 6 to 8, wherein two said communication ports are provided, said communication ports having first and second communication conduits communicated with said suction means respectively.
Claim 12
Independent Claim
37 words
A device as claimed in any of claims 2, 7 or 8 or any claim dependent thereon, wherein the first port and/or communication channel has a resistance smaller than that of the second port and/or communication channel.
Claim 13
Dependent Claim
26 words
An ink jet recording apparatus according to claim 10, wherein said first communication conduit has a cross-sectional area larger than that of said second communication conduit.
Claim 14
Dependent Claim
16 words
A discharge recovery device according to any preceding claim, wherein said suction means comprises a pump.
Claim 15
Dependent Claim
81 words
An ink jet recording apparatus comprising: a recording head having a plurality of discharge openings provided along an up standing direction for discharging ink; a discharge recovery device as claimed in any preceding claim; moving means for moving said cap member to a position where said cap member covers said plurality of discharge openings; and drive means for driving said suction means in a state that said plurality of discharge openings are covered by said cap member by said moving means.
Claim 16
Dependent Claim
30 words
An apparatus according to claim 13, wherein said recording head includes an ink tank for containing the ink and is removably mounted on a carriage for moving said recording head.
Claim 17
Dependent Claim
27 words
An apparatus according to claim 13 or 14, wherein said recording head is adapted to perform a recording operation by discharging the ink by utilizing thermal energy.
Claim 18
Independent Claim
18 words
An apparatus according to any of claims 13 to 15, wherein said recording head includes electro-thermal converter elements.
Claim 19
Independent Claim
28 words
An apparatus according to any of claims 13 to 16, wherein said recording head is of full-line type which perform a printing operation stationarily in a recording position.
References Cited (Backward Citations)
No citation records indexed.
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