PRINTING SYSTEM WITH SELF-PURGE, SEDIMENT PREVENTION AND FUMES REMOVAL ARRANGEMENTS
First Claim
1. A method for printing by an inkjet head, comprising the steps of:
- (a) wetting a nozzles plate of the inkjet head, said nozzles plate including jetting nozzles; and
(b) managing liquid vapor in proximity to the wetted nozzles plate to maintain said wetting of said nozzles plate,thereby preventing accumulation of solid sediment on said nozzles plate.
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Accused Products
Abstract
A printing head assembly with integrated purge mechanism is disclosed. The printing head assembly comprises: (a) a liquid dispensing head comprising one or more dispensing nozzles enclosed in a nozzle plate, driven by at least first and second pressures, and (b) a shielding mask including an opening in front of the one or more nozzles, wherein the opening being configured such that when printing liquid is dispensed from the head driven by the first pressure, the liquid being dispensed in pulses through the opening in the shielding mask, and (ii) when purge printing liquid is dispensed from the head driven by the second pressure, the liquid being drawn to a capillary gap formed between the shielding mask and the nozzle plate thereby removing the purge printing liquid from the nearby nozzles.
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Citations
22 Claims
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1. A method for printing by an inkjet head, comprising the steps of:
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(a) wetting a nozzles plate of the inkjet head, said nozzles plate including jetting nozzles; and (b) managing liquid vapor in proximity to the wetted nozzles plate to maintain said wetting of said nozzles plate, thereby preventing accumulation of solid sediment on said nozzles plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for printing by an inkjet head, the system comprising:
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(a) a processing system containing one or more processors, said processing system being configured to; (i) wet a nozzles plate of the inkjet head, said nozzles plate including jetting nozzles; and (ii) manage liquid vapor in proximity to the wetted nozzles plate to maintain said wetting of said nozzles plate, thereby preventing accumulation of solid sediment on said nozzles plate. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification