Inkjet printing apparatus and control method
AssigneeCanon Kabushiki Kaisha
InventorsTsuyoshi Ibe, Masaya Uetsuki, Kazuo Suzuki, Toshimitsu Danzuka, Masataka Kato, Asako Tomida, Hiroaki Komatsu
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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 is arranged in a first direction, the nozzles ejecting ink;
- a scanning unit configured to scan the print head in a second direction perpendicular to the first direction;
- a purge unit configured to perform a purging operation and including a sheet member configured to contact the orifice face and purge ink deposited on the orifice face
- 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, an amount of winding of the sheet member by the winding unit after the second purging operation.
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 is arranged in a first direction and that eject ink, a scanning unit configured to scan the print head in a second direction perpendicular to the first direction, a purge unit configured to perform a purging operation includes a sheet member configured to contact the orifice face and purge ink deposited on the orifice face
- 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, 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.