Eyelid with mechanically driven service position override

Details Eyelid with mechanically driven service position override Eyelid with mechanically driven service position override

2005-06-28

2005-06-28

Nguyen, Thinh (Department: 2861)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

06910756

ABSTRACT:
A technique for sealing a printhead of an ink jet printer system on startup, opening the seal to print, and opening further on an arbitrary path for service, is provided for by the present invention. The ink jet printhead has an ink drop generator, a catcher located adjacent to the ink drop generator, and a catcher pan located below the catcher. An eyelid seals ink within the printhead on startup of the printer system. An actuator mechanism transmits movement to the eyelid along a predetermined path, having multiple positions for the eyelid. The eyelid is moved between open and closed positions by means of a dc motor. The open position is defined by the actuator means contacting a print position stop. Shifting the position of the print position stop allows the eyelid to open to a service position.

REFERENCES:
patent: 6247781 (2001-06-01), Blum
Specification sheet for the MicroMo AM 1524 stepper motor, retrived from the internet on Aug. 8, 2004 from [http://www.mhatt.aps.anl.gov/˜dufresne/Manuals/BP-8000/Micromo-AM1524.pdf].

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