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US 4,901,091 AGranted
Ink jet recording head and ink jet recording apparatus using same
AssigneeCanon Kabushiki Kaisha
InventorMasami Kasamoto
Life of this patent
Estimating the term…
Abstract
An ink jet recording head comprises a recording head unit, a drive board, a support member having a flat surface supporting the recording head unit and the drive board, and signal feeding apparatus for feeding an electrical drive signal from the drive board to the recording head unit. A groove, in which a sealant is provided, is formed at an interface between the recording head unit and the support member and extends in the direction of the width of the recording head unit.
Claims45
An ink jet recording head comprising:
- a laminated body formed by a first member and a second member with a common surface therebetween and side surfaces joined by the common surface, the laminated body having an orifice portion for ejecting ink and a wiring portion spaced from the orifice portion for supplying electrical signals to the orifice portion;
- first sealing means disposed at the common surface of the first member and the second member between the orifice portion and wiring portion, the first sealing means extending the width of the laminated body between the side surfaces to prevent ink from traveling along the common surface from the orifice portion to the wiring portion;
- and
- second sealing means disposed on the side surfaces of the laminated body at a location wherein the second sealing means is in contact with the first sealing means to prevent ink from traveling along the side surfaces from the orifice portion to the wiring portion.
1 more element
An ink jet recording head which comprises:
- a recording head unit having an orifice portion with an orifice for discharging ink and a wiring portion spaced from the orifice portion for supplying driving signals to the orifice portion;
- a support member joined to the recording head unit and supporting the unit with a common surface therebetween and side surfaces joined by the common surface;
- first sealing means disposed at the common surface of the recording unit and the support member between the orifice portion and the wiring portion, the first sealing means extending the width of the support member between the side surfaces to prevent ink from traveling along the common surface from the orifice portion to the wiring portion;
- and
- second sealing means disposed on the side surfaces of the recording head unit and the support member at a location wherein the second sealing means is in contact with the first sealing means to prevent ink from traveling along the side surfaces from the orifice portion to the wiring portion.
2 more elements
An ink jet recording head which comprises:
- a recording head unit having an orifice portion with an orifice for discharging ink and a wiring portion spaced from the orifice portion for supplying driving signals to the orifice portion;
- a support member joined to the recording head unit and supporting the unit with a common surface therebetween and side surfaces joined by the common surface;
- first sealing means disposed at the common surface of the recording head unit and the support member between the orifice portion and the wiring portion, the first sealing means extending the width of the support member between the side surfaces to prevent ink from traveling along the common surface from the orifice portion to the wiring portion;
- and
- second sealing means disposed on the side surfaces of the laminated body formed by the recording head unit and the support member at a location wherein the second sealing means is in contact with the first sealing means to prevent ink from traveling along the side surfaces from the orifice portion to the wiring portion.
2 more elements
An ink jet recording head which comprises:
- a recording head unit having an orifice portion with an orifice for discharging ink and a wiring portion spaced from the orifice portion for supplying driving signals to the orifice portion;
- a support member joined to the recording head unit and supporting the unit with a common surface therebetween and side surfaces joined by the common surface;
- first sealing means disposed at the common surface of the recording head unit and the support member between the orifice and the wiring portion, the first sealing means extending the width of the support member between the side surfaces to prevent ink from traveling along the common surface from the orifice portion to the wiring portion;
- a rubber bushing disposed on the side surfaces of the laminated body formed by the recording head unit and the support member at a location wherein the rubber bushing is in contact with the first sealing means to prevent ink from traveling along the side surfaces from the orifice portion to the wiring portion;
- and
- a support plate joined to the rubber bushing having a surface which contacts a cap member for covering the orifice.
3 more elements
An ink jet recording apparatus which comprises:
- an ink jet recording head comprising a recording head unit having an orifice portion with an orifice for discharging ink and a wiring portion spaced from the orifice portion for supplying driving signals to the orifice portion, a support member joined to the recording head unit and supporting the unit with a common surface therebetween and side surfaces joined by the common surface, first sealing means disposed at the common surface of the recording head unit and the support member between the orifice and the wiring portion, the first sealing means extending the width of the support member between the side surfaces to prevent ink from traveling along the common surface from the orifice portion to the wiring portion and second sealing disposed on the side surfaces of the laminated body formed by the recording head unit and the support member at a location wherein the second sealing means is in contact with the first sealing means to prevent ink from traveling along the side surfaces from the orifice portion to the wiring portion the second sealing means also having a flat surface portion;
- and
- a cap member having a contacting portion for contacting the flat surface portion of the second sealing means and a recessed portion for covering the orifice.
An ink jet recording apparatus which comprises:
- an ink jet recording head comprising a recording head unit having an orifice portion with an orifice for discharging ink and a wiring portion spaced from the orifice portion for feeding driving signalS to the orifice portion, and a support member joined to the recording head unit and supporting the unit with a common surface therebetween and side surfaces joined by the common surface, first sealing means disposed at the common surface of the recording head unit and the support member between the orifice and the wiring portion, the first sealing means extending the width of the support member between the side surfaces to prevent ink from traveling along the common surface from the orifice portion to the wiring portion and second sealing means disposed on the side surfaces of the laminated body formed by the recording head unit and the support member at a location wherein the second sealing means is in contact with the first sealing means to prevent ink from traveling along the side surfaces from the orifice portion to the wiring portion the second sealing means also having a flat surface portion;
- a cap member having a contacting portion for contacting the flat surface portion of the second sealing means and a recessed portion for covering the orifice;
- and
- recovery pumping means for exhausting ink through the orifice.
1 more element
An ink jet recording head which comprises:
- a laminated body formed by a first member and a second member with a common surface therbetween and side surfaces joined by the common surface, the laminated body having an orifice portion with an orifice for ejecting ink and a wiring portion spaced from the orifice portion for supplying electrical signals to the orifice portion, first sealing means disposed at the common surface of the first member and the second member between the orifice and the wiring portion, the first sealing means extending the width of the laminated body between the side surfaces to prevent ink from traveling along the common surface from the orifice portion to the wiring portion;
- and
- second sealing means disposed on the side surfaces of the laminated body at a location wherein the second sealing means is in contact with the first sealing means to prevent ink from traveling along the side surfaces from the orifice portion to the wiring portion.
Dependencies are inferred from the claim text.