Electrophotography – Diagnostics – Consumable
Reexamination Certificate
2005-12-12
2009-12-08
Gray, David M (Department: 2852)
Electrophotography
Diagnostics
Consumable
C399S028000, C399S029000, C399S030000, C399S060000, C399S061000, C399S062000, C399S063000, C399S064000, C399S074000, C399S112000, C399S113000, C399S223000, C399S226000
Reexamination Certificate
active
07630654
ABSTRACT:
A plurality of chambers are adapted to accommodate a plurality of cartridges each containing toner to be used for printing. A mode changer is operable to change an operation mode of the printing apparatus in accordance with a combination of respective colors of toner in the cartridges accommodated in the chambers. A first detector is operable to detect a residual amount of toner in each of the cartridges. A second detector is operable to detect the respective colors of toner in the cartridges when the operation mode is changed. A controller is operable to generate an image data including a plurality of first identifiers each indicative of the residual amount of toner in one of the cartridges and a plurality of second identifiers each indicative of one of the colors of toner and associated with one of the first identifiers. A display is adapted to display the image data.
REFERENCES:
patent: 4952987 (1990-08-01), Takano
patent: 6029018 (2000-02-01), Rogers et al.
patent: 7242879 (2007-07-01), Kakuno et al.
patent: 7286775 (2007-10-01), Utsumi et al.
patent: 2003/0071726 (2003-04-01), Hopper et al.
Evans Geoffrey T
Gray David M
Seiko Epson Corporation
Sughrue & Mion, PLLC
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