Method of preventing ink clogging in ink droplet projecting devi

Details Method of preventing ink clogging in ink droplet projecting devi Method of preventing ink clogging in ink droplet projecting devi

1982-01-25

1983-11-22

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

G01D 1518

Patent

active

044172591

ABSTRACT:
An on-demand type ink jet printer and an ink droplet projecting device to be used for said printer, which prevents clogging in the orifice resulting from drying and solidification of ink and is constructed in such manner that an air cell filled with air at the time of ink droplet projection and with a liquid at the time of non-ink-droplet-projection is provided in front of an orifice through which ink droplets are projected, and that, in said air cell another orifice facing the aforesaid orifice is coaxially provided in a position opposite to that of the aforesaid orifice.

REFERENCES:
patent: 3839721 (1974-10-01), Chen
patent: 4106032 (1978-08-01), Miura
patent: 4223324 (1980-09-01), Yamamori
patent: 4296418 (1981-10-01), Yamazaki
patent: 4301460 (1981-11-01), Miura
patent: 4358781 (1982-11-01), Yamamori

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