Recorders – Performance of multiple functions of steam and gas engines – Pressure responsive element
Patent
1989-05-08
1991-01-29
Hartary, Joseph W.
Recorders
Performance of multiple functions of steam and gas engines
Pressure responsive element
346140R, 400 17, 364520, B41J 201, G01D 308
Patent
active
049890166
ABSTRACT:
A computer program for controlling an ink-jet printer-plotter having a conventional multi-jet ink-jet cartridge operates so that when the printer-plotter is in plot mode, the jets are used in sequence, instead of conventionally always using the same jet. A different jet is used each time a new graph is started. This method lengthens the life of the cartridge by reducing stress on any one of the jets.
REFERENCES:
patent: 4622560 (1986-11-01), Wilhelmus
patent: 4758849 (1988-07-01), Platt
Gatten Ronald A.
Joba Lawrence R.
Hartary Joseph W.
Spectra-Physics Inc.
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