INK JET PRINTING APPARATUS, AND PRINT HEAD RECOVERY DEVICE AND PRINT HEAD RECOVERY METHOD

摘要

In an ink jet printing apparatus prints an image by employing a print head capable of ejecting ink from ejection ports, a suction unit draws ink from the ejection ports into an interior of the cap by applying a suction force to the interior of a cap that is covering the ejection ports. An atmosphere communication unit exposes to the atmosphere the interior of the cap that is covering the ejection ports, and a pressure increase unit increases a pressure in an internal of the print head. A control unit permits the suction unit to apply the suction force to the interior of the cap, and permits the pressure increase unit to increase the pressure in the internal of the print head before the atmosphere communication unit exposes the interior of the cap to the atmosphere in a state where the ejection ports is covered with the cap.

主权项

1. An ink jet printing apparatus for printing an image by employing a print head capable of ejecting ink from ejection ports, comprising:
a cap configured to cover the ejection ports; a suction unit configured to draw ink from the ejection ports into an interior of the cap by applying a suction force to the interior of the cap that is covering the ejection ports; an atmosphere communication unit configured to expose to the atmosphere the interior of the cap that is covering the ejection ports; a pressure increase unit configured to increase a pressure in an internal of the print head; and a control unit configured to permit the suction unit to apply the suction force to the interior of the cap, and to permit the pressure increase unit to increase the pressure in the internal of the print head before the atmosphere communication unit exposes the interior of the cap to the atmosphere in a state where the ejection ports is covered with the cap.