Ink jet printing apparatus with ink replenishing

Details Ink jet printing apparatus with ink replenishing Ink jet printing apparatus with ink replenishing

1978-10-31

1979-12-11

Miller, Jr., George H.

Recorders

Markers and/or driving means therefor

With ink supply to marker

346 75, G01D 1518

Patent

active

041785959

ABSTRACT:
A first ink tank (17) is attached to a movable ink jet printing head (12) for supplying ink thereto. A second ink tank (28) which is larger than the first ink tank (17) is fixedly mounted at an end of a carriage (19) which supports the printing head (12). After the printing head (12) prints a line, a print end signal causes a sensor (33) to sense the amount of ink in the first ink tank (17). If the amount is low the printing head (12) is moved so that a connector (31) of the first ink tank (17) mates with a connector (29) of the second ink tank (28) and ink is urged to flow from the second ink tank (28) to fill up the first ink tank (17). The amount of ink in the first ink tank (17) is again sensed and if it is still low, indicating that the amount of ink in the second ink tank (28) is also low, an annunciator (41) is energized to urge the apparatus operator to fill the second ink tank (28) with ink.

REFERENCES:
patent: 3930258 (1975-12-01), Dick et al.
patent: 4121222 (1978-10-01), Diebold et al.

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