Ink supply container and system

Details Ink supply container and system Ink supply container and system

1991-07-24

1993-02-16

Fuller, Benjamin R.

Recorders

Markers and/or driving means therefor

With ink supply to marker

222105, B41J 2175

Patent

active

051874989

ABSTRACT:
An ink supply for an ink jet printer, preferably comprises a bellows filled with liquid ink. The bellows has first and second opposite end walls and a bellowed side wall attached to and extending between the first and second end walls to define a variable volume ink chamber. The bellows is movable between an extended position and a contracted position and is biased toward the contracted position. The first end wall includes an outlet which, when opened, permits the ink to be expelled from the bellows at a low pressure. A rigid frangible shell is provided to support the bellows and to retain the bellows in an extended position during storage and prior to use. The bellows may include a magnet which, when used in combination with a printer and a sensing device, can detect and signal a near empty or empty ink supply condition.

REFERENCES:
patent: 3708798 (1973-01-01), Hildenbrand et al.
patent: 4412232 (1983-10-01), Weber et al.
patent: 4889442 (1989-12-01), Takagi et al.
patent: 5040002 (1991-08-01), Pollacek et al.

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