Ink cartridge

Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means

Reexamination Certificate

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Details

C347S084000, C347S085000

Reexamination Certificate

active

11409068

ABSTRACT:
An ink cartridge is detachably mounted on a cartridge holder. At least one first reflector is provided in cartridge holder. A reflective-type optical sensor includes a light emitter and a light receiver. The optical sensor is operable to form an optical path originated from the light emitter to the light receiver via the first reflector. A shading member is provided in the ink cartridge operable to shade the optical path when the ink cartridge is mounted on the cartridge holder. A second reflector is provided in the ink cartridge. The second reflector reflects light emitted from the light emitter and varies an intensity thereof in accordance with an ink amount remaining in the ink cartridge.

REFERENCES:
patent: 4437104 (1984-03-01), Hudson
patent: 4695824 (1987-09-01), Tazaki
patent: 5997121 (1999-12-01), Altfather et al.
patent: 6137503 (2000-10-01), Hashimoto et al.
patent: 6234603 (2001-05-01), Altfather et al.
patent: 6409302 (2002-06-01), Altfather et al.
patent: 2002/0149633 (2002-10-01), Murakami et al.
patent: 0 626 267 (1994-11-01), None
patent: 1 354 709 (2003-10-01), None
patent: 7-060990 (1995-03-01), None
patent: 8-169122 (1996-07-01), None
patent: 9-174877 (1997-07-01), None
patent: 10-230616 (1998-09-01), None
patent: 11-138842 (1999-05-01), None

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