Compact ink jet printhead
Patent 6422676 Issued on July 23, 2002. Estimated Expiration Date: 
June 19, 2021. 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.
June 19, 2021. 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 ReferencesInkjet printhead architecture for high frequency operation Patent #: 5604519 Inventors
ApplicationNo. 883398 filed on 06/19/2001US Classes:347/13, Full-line array347/57Drive signal applicationExaminersPrimary: Barlow, JohnAssistant: Stephens, Juanita Attorney, Agent or FirmInternational ClassesB41J 029/38B41J 002/05 AbstractA compact thermal ink jet printhead including a printhead substrate, a plurality of side by side columnar arrays of drop generators formed in the printhead substrate, and drive circuits formed in the printhead substrate for energizing each ink drop generator. The printhead substrate has an ink drop generator packing density of at least 10.43 ink drop generators per square millimeter. | |
