Vacuum priming diagnostic cartridge

Details Vacuum priming diagnostic cartridge Vacuum priming diagnostic cartridge

1993-05-27

1995-08-01

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Controller

347 30, 73714, 73726, G01d 2100, B41J 201

Patent

active

054383510

ABSTRACT:
A vacuum priming diagnostic cartridge that can be inserted in place of an ordinary ink jet cartridge to diagnose and indicate vacuum condition in an ink jet maintenance station of a printer. The diagnostic cartridge includes a manifold that communicates vacuum from the maintenance station to a vacuum detector. The detector is responsive to the amount of vacuum generated by the maintenance station during a priming operation. A detector signal from the detector is directed to an interpolating driver circuit that acts on the detector signal and provides an indication of the vacuum level sensed by outputting an output signal to activate one or more indicators.

REFERENCES:
patent: 4506276 (1985-03-01), Kyser et al.
patent: 4518973 (1985-05-01), Tazaki
patent: 4639738 (1987-01-01), Young et al.

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