Incremental printing of symbolic information – Ink jet – Controller
Reexamination Certificate
2004-09-24
2008-09-02
Meier, Stephen D (Department: 2853)
Incremental printing of symbolic information
Ink jet
Controller
C347S086000
Reexamination Certificate
active
07419233
ABSTRACT:
Ink cartridges1ato1cfor storing light-transmissive inks include a shutter arranged therein so that the shutter is movable depending on the ink residual amount, and a projection51having light transmittance and passing the shutter therethrough. An ink cartridge1dfor storing a nontransparent ink includes a projection51having light transmittance. Optical sensors21ato21c, which detect the shutter at the projection51of the ink cartridges1ato1crespectively, are arranged at a position higher in the vertical direction than a position of arrangement of an optical sensor21ddetecting the ink at the projection51of the ink cartridge1d. It is possible to use both an ink cartridge for storing a light-transmissive ink and an ink cartridge for storing a nontransparent ink, and the ink amount is correctly detected for any one of the cartridges.
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Brother Kogyo Kabushiki Kaisha
Meier Stephen D
Mruk Geoffrey
Oliff & Berridg,e PLC
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