Covering device for protecting the nozzle area of an ink jet wri

Details Covering device for protecting the nozzle area of an ink jet wri Covering device for protecting the nozzle area of an ink jet wri

1986-06-25

1987-11-17

Hartary, Joseph W.

Recorders

Markers and/or driving means therefor

With ink supply to marker

G01D 1518

Patent

active

047077140

ABSTRACT:
The invention relates to a covering device for protecting the nozzle area of an ink jet writing head, which device is detachably connected to the ink jet writing head in a sealing manner and forms a cavity which is opened towards the nozzles, into which cavity liquid ink is transported through the nozzles. In order to be able to store and transport an ink jet writing head filled with liquid ink for a long period of time, in particular also as an individual component, for example as a spare part, without the possibility existing the liquid ink of drying in the nozzle area and without enclosed or penetrating air bubbles that can lead to a chemical change of the liquid ink, it is ensured that the covering device (7) is form-coupled to the ink jet writing head (1) and that the cavity (8) comprises a closable ventilation duct (12) which communicates with the atmosphere.

REFERENCES:
patent: 4015272 (1977-03-01), Yamamori
patent: 4045802 (1977-08-01), Fukazawa
patent: 4300145 (1981-11-01), Raamsdonk
patent: 4543589 (1985-09-01), Terasawa

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