Method of removing particulates from a printhead using a disposable sheet
View Patent ↗A method of removing particulates from an ink ejection face of a printhead is provided. The method comprises the steps of: (i) flooding the face with ink from the printhead, thereby dispersing the particulates into the flooded ink; and (ii) transferring the flooded ink, including the particulates, onto a disposable sheet moving through a maintenance zone adjacent the face, wherein the sheet does not contact the face.
1. A method of removing particulates from an ink ejection face of a printhead, said method comprising the steps of:
(i) flooding said face with ink from said printhead, thereby dispersing said particulates into said flooded ink; and
(ii) transferring said flooded ink, including said particulates, onto a disposable sheet fed past said printhead through a maintenance zone adjacent said face,
wherein no part of said disposable sheet makes contact with said printhead.
2. The method of claim 1 , wherein said sheet contacts said flooded ink when moving past said face.
3. The method of claim 1 , wherein flooded ink is wicked onto said sheet.
4. The method of claim 1 , wherein said sheet is a paper sheet.
5. The method of claim 1 , wherein said sheet has a high absorbency for absorbing said ink.
6. The method of claim 1 , wherein said sheet is different from print media used for printing.
7. The method of claim 1 , wherein said sheet is less than 1 mm from said face when moving past said face.
8. The method of claim 1 , wherein a sealing member is positioned adjacent said printhead, such that at least part of said sheet, said face and said sealing member define a cavity when said sheet moves past said face.
9. The method of claim 1 , wherein said face is flooded with ink by positively pressurizing an ink reservoir or ink conduit supplying ink to said printhead.
10. The method of claim 9 , wherein an amount and/or a period of pressure applied to said ink reservoir or ink conduit is controlled.
11. The method of claim 10 , wherein an ink conduit between said ink reservoir and said printhead comprises a valve for controlling an amount of ink flooded onto said face.
12. The method of claim 1 , further comprising the step of:
(iii) expelling said sheet from a printer comprising said printhead.
13. The method of claim 1 , wherein said sheet is fed past said face using a feed mechanism.
14. The method of claim 1 , wherein said sheet is manually fed past said face.
15. The method of claim 1 , wherein said printhead has an associated print zone through which print media are fed for printing.
16. The method of claim 15 , wherein said maintenance zone is nearer said face than said print zone.