Recorders – Markers and/or driving means therefor – With ink supply to marker
Patent
1989-04-07
1990-08-07
Hartary, Joseph W.
Recorders
Markers and/or driving means therefor
With ink supply to marker
357 59, B41J 205
Patent
active
049471929
ABSTRACT:
A thermal jet ink printing system is provided with an inproved printhead. The printhead is formed by monolithic integration of MOS transistors switches onto the same silicon substrate containing the resistive elements. In a preferred embodiment, the transistor switches and resistive elements are formed from a single layer of polysilicon with the resistive element formed on a thermally grown field oxide layer having a thickness ranging from about one to four microns. The integrated circuit chips are formed by MOS technology, are thermally stable and can be operated at higher voltages.
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Burke Cathie J.
Hawkins William G.
Hartary Joseph W.
Xerox Corporation
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