Electrophotography – Diagnostics – Consumable
Reexamination Certificate
2006-06-06
2006-06-06
Tran, Hoan (Department: 2852)
Electrophotography
Diagnostics
Consumable
C399S024000, C399S025000, C399S111000
Reexamination Certificate
active
07058320
ABSTRACT:
An image forming apparatus includes a developer container for containing a developer; a developer amount detector for detecting the amount of the developer contained in the developer container; a memory; and a calculator for calculating a display level of the remaining amount of the developer. At least the developer container and the memory are in a unit which is detachably mountable to a main assembly of the image forming apparatus. The memory stores information relating to a lifetime of the unit, and a device calculates the display level in accordance with the amount detected by the developer amount detector and the information relating to the lifetime of the cartridge.
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Ogata Hiroaki
Yamamoto Shinya
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Tran Hoan
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