Ink jet printer of the ink-on-demand type

Details Ink jet printer of the ink-on-demand type Ink jet printer of the ink-on-demand type

1985-08-12

1986-10-28

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

G01D 1518

Patent

active

046202021

ABSTRACT:
An ink-on-demand type ink jet printer including a printer head and an ink container. The printer head includes nozzles for ejecting ink droplets, pressure chambers for pressurizing ink therein and ink passageways for supplying ink from the ink container to the pressure chambers. The printer head is movable in a linear direction for printing across a sheet of recording paper. The ink container includes a vertical partition with the vertical partition having a wall disposed adjacent to an outlet of the ink container and extending substantially perpendicularly to the direction of movement of the printer head. The ink container includes an interior divided by the vertical partition into a main chamber of a first volume defined between one wall surface of the vertical partition and a wall surface of the ink container and an auxiliary chamber of smaller volume defined between the opposite wall surface of the vertical partition and another wall surface of the ink container. The ink is supplied to the nozzles from the auxiliary chamber with the level of ink in the auxiliary chamber being different than the level of ink in the main chamber.

REFERENCES:
patent: 3771165 (1973-11-01), Kurimoto
patent: 4301459 (1981-11-01), Isayama
patent: 4463362 (1984-07-01), Thomas

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