Ink cartridge detector, ink jet printer incorporating the...

Details Ink cartridge detector, ink jet printer incorporating the... Ink cartridge detector, ink jet printer incorporating the...

2006-05-16

2006-05-16

Shah, Manish S. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S085000, C347S084000

Reexamination Certificate

active

07044590

ABSTRACT:
An ink cartridge is detachably mounted on a cartridge holder. At least one first reflector is provided in the 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.

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