Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Patent
1995-01-04
1997-01-28
Lund, Valerie A.
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
347 7, G01D 1518, B41J 2175
Patent
active
055981984
ABSTRACT:
An ink jet printhead includes a mounting frame, an ink supply reservoir secured to the mounting frame and a valve housing secured to the mounting frame, the valve housing including an ink chamber. An ink supply fitting is supported in the mounting frame and includes a bore having a first end communicating with the ink supply reservoir and a second end communicating with the valve housing for feeding ink from the ink supply reservoir to the ink chamber. The fitting includes a valve seat in the bore. A valve member located in the valve housing is mounted for reciprocation in the ink supply fitting bore for selectively sealing against the valve seat in the fitting. A support member supports the valve member so that the valve member can reciprocate in relation to the valve seat to selectively allow a flow of ink into the ink chamber. The valve responds to reduced ink pressure in the ink chamber upon ejection of ink therefrom by a head assembly to open and admit ink into the ink chamber by flow from the reservoir through the fitting.
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Panos Robert A.
Taylor Thomas N.
Lund Valerie A.
Xerox Corporation
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