Inkjet printhead architecture for high frequency operation
October 6, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesDevice for projecting ink droplets onto a medium Barriers for thermal ink jet printers Liquid jet recording head Liquid injection recording apparatus Liquid-jetting head Thermal ink jet common-slotted ink feed printhead External manifold for ink jet array Method for preventing non-discharge in a liquid jet recorder and a liquid jet recorder Insertable, multi-array print/cartridge Thermal drop-on-demand ink jet print head Inventors
ApplicationNo. 319404 filed on 10/06/1994US Classes:347/13, Full-line array347/42, Full-line type347/63Composite ejectorExaminersPrimary: Royer, William J.Attorney, Agent or FirmInternational ClassB41J 029/38AbstractDescribed is an ink delivery system for an array of nozzle orifices in a print cartridge comprising an ink reservoir; a substrate having a plurality of individual ink firing chambers with an ink firing element in each chamber; an ink channel connecting said reservoir with said ink firing chambers, said channel including a primary channel connected at a first end with said reservoir and at a second end to a secondary channel; a separate inlet passage for each firing chamber connecting said secondary channel with said firing chamber for allowing high frequency refill of the firing chamber; a group of said firing chambers in adjacent relationship forming a primitive in which only one firing chamber in said primitive is activated at a time; first circuit means on said substrate connected to said firing elements; and second circuit means on said cartridge connected to said first circuit means, for transmitting firing signals to said ink firing elements at a frequency greater than 9 kHz. | |
