Incremental printing of symbolic information – Ink jet – Controller
Patent
1996-08-02
1998-10-06
Fuller, Benjamin R.
Incremental printing of symbolic information
Ink jet
Controller
356436, B41J 201, G01N 2100
Patent
active
058184759
ABSTRACT:
Disclosed is an apparatus for automatically measuring the amount of ink discharged from an inkjet printhead. A predetermined amount of pure water is injected into a measurement bottle, the bottle is supplied via an insertion port to a rotary table for measurement purposes, and the rotary table is rotated by 90.degree. to bring the bottle to a point immediately underlying a nozzle of the inkjet printhead. Ink is then discharged into the bottle from the printhead under set measurement conditions. The rotary head is then rotated a further 90.degree. to bring the bottle to a point in front of a photometer. At this time the ink solution is stirred thoroughly and the absorbance thereof is measured by the photometer. When measurement is completed, the rotary table is rotated a further 90.degree. to discard the bottle from a discharge port. These steps are automated by computer control.
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Akahira Makoto
Miyazaki Takeshi
Nakazawa Koichiro
Shirota Katsuhiro
Canon Kabushiki Kaisha
Fuller Benjamin R.
Hallacher Craig A.
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