Ink jet cartridge and printer using it

Details Ink jet cartridge and printer using it Ink jet cartridge and printer using it

1994-12-22

1997-05-20

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

B41J 2175

Patent

active

056316836

ABSTRACT:
An inkjet cartridge is provided in which by applying an appropriate initial pressure to an ink reservoir or sack at the start of printing does not excessively increase the pressure in an ink reservoir or sack when the remaining ink level is high, and enables effective use of the remaining ink when the remaining ink level is low. The inkjet cartridge comprises an ink reservoir for storing the recording ink, a circuit element for ejecting ink supplied from ink reservoir according to the display data from a host processor to be recorded. A head case and an ink supply case accommodating the ink reservoir. A thick-wall region of the ink reservoir is pressed by a pressure rod via a through-hole. A guide is provided to push the thick-wall region to one side of the ink reservoir is disposed in the top portion of the case or the guide is provided around the thick-wall region of the ink reservoir.

REFERENCES:
patent: 4599625 (1986-07-01), Terasawa et al.
patent: 4785314 (1988-11-01), Terasawa et al.
patent: 4967209 (1990-10-01), Hasegawa et al.
patent: 5040001 (1991-08-01), Dunn et al.
patent: 5359356 (1994-10-01), Ecklund

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