Printer assembly and nozzle arrangement

Details Printer assembly and nozzle arrangement Printer assembly and nozzle arrangement

2008-01-29

2008-01-29

Meier, Stephen (Department: 2853)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

C347S061000

Reexamination Certificate

active

11012329

ABSTRACT:
An inkjet printer includes a printing mechanism that defines a printing path through which media can be fed so that the printing mechanism can carry out a printing operation on the media. The printing mechanism has a printhead assembly that includes a printhead with printhead chips that are operatively positioned with respect to the printing path. Each printhead chip has a wafer substrate. Drive circuitry is positioned on the wafer substrate. A plurality of nozzle arrangements is positioned on the wafer substrate. Each nozzle arrangement has nozzle chamber walls that define a nozzle chamber. A micro-electromechanical actuator is mounted on the substrate to be connected to the drive circuitry and operatively positioned with respect to the nozzle chamber so that, on receipt of a signal from the drive circuitry, the actuator can act to eject ink from the nozzle chamber. A protective covering shell is positioned on the substrate and defines an enclosure in which the actuator is positioned. A feed mechanism for feeding media through the printing path is included. In preferred embodiments, the printhead is a pagewidth printhead, the printhead chips spanning the width of the printing path.

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U.S. Appl. No. 09/807,297, filed Oct. 15, 1999, Silverbrook.

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