Tube pump mechanism and ink jet recording apparatus equipped therewith

Claim 2

A recovery device equipped with a tube pump which performs suction or pressurization by utilizing deformation of a tube applicable to a liquid jet recording apparatus, comprising a mechanism which acts on a tube between the acting portion side acting on the discharge portion of the liquid jet recording head of the aforesaid tube pump and the aforesaid tube pump to effect communication and closing between said acting portion side and tube pump.

Claim 3

A recovery device according to Claim 1, wherein the aforesaid mechanism performs communication and closing in associated fashion with the pumping actuation with the aforesaid tube pump.

Claim 4

A liquid jet recording apparatus having a recovery device equipped with a tube pump which performs suction or pressurization through a member forming a hermetically closed state for a liquid jet recording head by utilizing deformation of a tube, comprising a mechanism which acts on a tube between the member forming a hermetically closed state for the discharge portion of the liquid jet recording head of the aforesaid tube pump and the aforesaid tube pump to effect communication and closing between said hermetically closed state forming member and tube pump.

Claim 5

A liquid jet recording apparatus having a recovery device equipped with a tube pump which performs suction or pressurization through a member forming a hermetically closed state for a liquid jet recording head by utilizing deformation of a tube, comprising a mechanism which acts on a tube between the member forming a hermetically closed state for the discharge portion of the liquid jet recording head of the aforesaid tube pump and the aforesaid tube pump to effect communication and closing between said hermetically closed state forming member and tube pump.

Claim 6

A liquid jet recording apparatus device according to Claim 3, wherein the aforesaid mechanism performs communication and closing in associated fashion with the pumping actuation with the aforesaid tube pump.

Claim 7

A liquid jet recording apparatus having a recovery device equipped with a tube pump which performs suction or pressurization through a member forming a hermetically closed state for a liquid jet recording head by utilizing deformation of a tube, comprising a mechanism which acts on a tube between the member forming a hermetically closed state for the discharge portion of the liquid jet recording head of the aforesaid tube pump and the aforesaid tube pump to effect communication and closing between said hermetically closed state forming member and tube pump, thereby performing strong recovery mode and usual recovery mode.

Claim 8

A liquid jet recording apparatus having a recovery device equipped with a tube pump which performs suction or pressurization through a member forming a hermetically closed state for a liquid jet recording head by utilizing deformation of a tube, comprising a mechanism which acts on a tube between the member forming a hermetically closed state for the discharge portion of the liquid jet recording head of the aforesaid tube pump and the aforesaid tube pump to effect communication and closing between said hermetically closed state forming member and tube pump, thereby performing strong recovery mode and usual recovery mode.

Claim 9

A liquid jet recording apparatus according to Claim 5, wherein a head performing recording by discharging droplets through a discharge element by use of heat energy is used.

Claim 10

An ink jet recording apparatus which performs recording by discharging an ink onto a recording medium, comprising an ink jet recording head for performing recording by discharging the ink onto the recording medium, a tube pump for suction of the ink from the above ink jet recording head, opening and closing means provided on the opposite side of the above tube pump to the above recording head which performs opening and closing of the communication between said tube pump and the waste ink disposal side, a mechanism which acts on a tube between the acting portion side acting on the discharge portion of the liquid jet recording head of the aforesaid tube pump and the aforesaid tube pump to effect communication and closing between said acting portion side and tube pump, and control means which actuates the aforesaid tube pump for a predetermined term under the tube closed state of both said mechanism and said opening and closing means and thereafter makes said mechanism under tube communicated state.

Claim 11

An ink jet recording apparatus which performs recording by discharging an ink onto a recording medium, comprising an ink jet recording head for performing recording by discharging the ink onto the recording medium, a tube pump for suction of the ink from the above ink jet recording head, opening and closing means provided on the opposite side of the above tube pump to the above recording head which performs opening and closing of the communication between said tube pump and the waste ink disposal side, a mechanism which acts on a tube between the acting portion side acting on the discharge portion of the liquid jet recording head of the aforesaid tube pump and the aforesaid tube pump to effect communication and closing between said acting portion side and tube pump, and control means which actuates the aforesaid tube pump for a predetermined term under the tube closed state of both said mechanism and said opening and closing means and thereafter makes said mechanism under tube communicated state.

Claim 12

An ink jet recording apparatus according to Claim 7, wherein the opening and closing actuation of said opening and closing means and the pump actuation are associated with each other.

Claim 13

An ink jet recording apparatus according to Claim 7, wherein said ink jet recordin head is a head which discharges ink by utilizing heat energy and is equipped with an electrothermal transducer for generation of said heat energy.

Claim 14

An ink jet recording apparatus according to Claim 9, wherein ink is discharged from discharge port by growth of bubbles by film boiling occurring by the heat energy applied by said electrothermal transducer.