Printhead ink supply system
First Claim
1. A printhead ink supply unit for supplying ink to a pagewidth printhead from which the ink is to be ejected, the printhead defining a plurality of inlet apertures for supplying ink to a series of ejection nozzles, the printhead ink supply unit including the printhead and further comprising:
- a plurality of columnar chambers, each chamber being configured to store a supply of ink of a particular color, the chambers having a length which is the same as that of the printhead and being positioned adjacent a back surface of the printhead; and
a series of tapered guide walls separating the chambers from one another, each tapered guide wall tapering into an end portion that mates with the back surface of the printhead, each end portion being in communication with at least one of the inlet apertures of the printhead for channelling ink of a particular color to channels of the printhead.
6 Assignments
0 Petitions
Accused Products
Abstract
A print head ink supply unit is disclosed for supplying a pagewidth print head for the ejection of ink by the print head having a first surface having a plurality of holes for the supply on ink to a series of ejection nozzles, the print head supply unit comprising a plurality of long columnar chambers for storing an ink supply, one for each output color, the chambers running substantially the length of the printhead adjacent the first surface thereof; and a series of tapered separators separating the chambers from one another, the tapered separators being tapered into an end strip running along the first surface along substantially the length of the printhead. The unit can further include a series of regularly spaced structural support members for supporting the tapered separators in a predetermined relationship to one another. The tapered separators can be formed in a single ejection molded unit with a wall of the unit abutting the printhead. The tapered separators taper to substantially abut a slot in the wall of the unit, the slot being adapted for the insertion of the print head.
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Citations
12 Claims
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1. A printhead ink supply unit for supplying ink to a pagewidth printhead from which the ink is to be ejected, the printhead defining a plurality of inlet apertures for supplying ink to a series of ejection nozzles, the printhead ink supply unit including the printhead and further comprising:
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a plurality of columnar chambers, each chamber being configured to store a supply of ink of a particular color, the chambers having a length which is the same as that of the printhead and being positioned adjacent a back surface of the printhead; and
a series of tapered guide walls separating the chambers from one another, each tapered guide wall tapering into an end portion that mates with the back surface of the printhead, each end portion being in communication with at least one of the inlet apertures of the printhead for channelling ink of a particular color to channels of the printhead. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification