| US 7,465,042 B2 | ||
| Method of priming inkjet printhead | ||
| Christopher Hibbard, Balmain (Australia); Kia Silverbrook, Balmain (Australia); Akira Nakazawa, Balmain (Australia); Garry Raymond Jackson, Balmain (Australia); and John Douglas Peter Morgan, Balmain (Australia) | ||
| Assigned to Silverbrook Research Pty Ltd, Balmain, New South Wales (Australia) | ||
| Filed on Dec. 05, 2005, as Appl. No. 11/293,836. | ||
| Prior Publication US 2007/0126814 A1, Jun. 07, 2007 | ||
| Int. Cl. B41J 1/175 (2006.01); B41J 2/15 (2006.01) | ||
| U.S. Cl. 347—85 [347/40; 347/87] | 11 Claims |
| 1. A method of priming an inkjet printhead, the inkjet printhead having a plurality of ink ejection nozzles, the method comprising
the steps of:
providing an ink bag containing ink for distribution to the nozzles via a fluid path between the ink bag and the nozzles;
applying inwardly directed force on at least one exterior wall of the ink bag so as to reduce an available fluid volume of
the ink bag, thereby causing ink to flow from the ink bag to the nozzles along the fluid path; and
arranging a biasing member in the ink bag so that the biasing member applies outwardly directed force on at least one interior
wall of the ink bag so as to restrain the reduction of available fluid volume of the ink bag only once the available fluid
volume of the ink bag has been reduced to a predetermined volume,
wherein the fluid path connects the ink bag to at least 6400 nozzles of the printhead.
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