Printer

Details Printer Printer

1996-07-17

1999-11-09

Le, N.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

B41J 2175

Patent

active

059800305

ABSTRACT:
A recording apparatus has a print head with an ink tank for supplying ink to the print head. The ink tank is carried together with a print head on a carriage, which is moved over a print medium so that the print head prints data on the print medium. The ink tank has an ink-empty sensor which outputs a first signal upon detecting that the ink in the ink tank has decreased to a lower limit. A controller causes the carriage to move to an ink-refilling position in response to the first signal. Then, the controller causes an ink-refilling mechanism to refill the ink tank with ink from an ink reservoir located above the ink tank. The ink tank also has an ink-full sensor which outputs a second signal upon detecting that the ink in the ink tank has increased to an upper limit. The ink-refilling mechanism stops an ink-refilling operation in response to the second signal. A timer may be used in place of the ink-full sensor. The timer outputs an output a predetermined time length after initiation of the ink-refilling operation, and the ink-refilling mechanism completes ink-refilling operation in response to the output of the timer.

REFERENCES:
patent: 4187511 (1980-02-01), Robinson
patent: 5712667 (1998-01-01), Sato

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