Inkjet printing apparatus and control method
AssigneeCanon Kabushiki Kaisha
InventorsTsuyoshi Ibe, Masaya Uetsuki, Kazuo Suzuki, Toshimitsu Danzuka, Masataka Kato, Asako Tomida, Hiroaki Komatsu
Life of this patent
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Abstract
An inkjet printing apparatus includes a purge unit having a sheet member that purges ink deposited on an orifice face of a print head and a winding unit that winds the sheet member. By using the number of ink ejections executed between a first purge operation and a second purge operation, the amount of winding of the sheet member is controlled after the second purge operation is completed.
Claims12
An inkjet printing apparatus comprising:
- a print head having at least one nozzle array disposed in an orifice face, the nozzle array including a plurality of nozzles are arranged in a predetermined direction, the nozzles ejecting ink;
- a scanning unit configured to cause the print head to scan in a direction perpendicular to the predetermined direction;
- a purge unit disposed in the vicinity of one end portion of a scanning area of the scanning unit, the purge unit including a sheet member configured to purge ink deposited on the orifice face of the print head and a winding unit configured to wind the sheet member thereon;
- and
- a control unit configured to control, on the basis of the number of ink ejections from the print head executed between a first purging operation performed by the purge unit and a second purging operation subsequently performed after the first purging operation is performed, an amount of winding of the sheet member wound by the winding unit after the second purging operation is completed.
A method for controlling an inkjet printing apparatus, the inkjet printing apparatus including a print head having at least one nozzle array disposed in an orifice face, where the nozzle array includes a plurality of nozzles that are arranged in a predetermined direction and that eject ink, a scanning unit configured to cause the print head to scan in a direction perpendicular to the predetermined direction, a purge unit disposed in the vicinity of one end portion of a scanning area of the scanning unit, where the purge unit includes a sheet member configured to purge ink deposited on the orifice face of the print head and a winding unit configured to wind the sheet member thereon, the method comprising:
- measuring the number of ink ejections from the print head executed between a first purging operation performed by the purge unit and a second purging operation subsequently performed after the first purging operation is performed;
- and
- winding a predetermined amount of the sheet member using the winding unit after the second purging operation is completed, the predetermined amount of the sheet member being set on the basis of a result of measuring the number of ink ejections.
Dependencies are inferred from the claim text.