Image forming apparatus and method of controlling same

Electrophotography – Diagnostics – Consumable

Reexamination Certificate

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C399S061000

Reexamination Certificate

active

11135284

ABSTRACT:
When it has been estimated that there is substantially no toner remaining in a toner supply unit based upon the amount of toner that has been supplied from the toner supply unit, a supply roller for supplying toner from the toner supply unit to a developing unit is rotated by a prescribed amount. After the supply roller has thus been rotated, a user is notified of the fact that no toner remains in the toner supply unit.

REFERENCES:
patent: 6347199 (2002-02-01), Morihara
patent: 2002/0141765 (2002-10-01), Phillips
patent: 2003/0133722 (2003-07-01), Kaiho
patent: 2004/0062559 (2004-04-01), Kinoshita et al.
patent: 2005/0117920 (2005-06-01), Ogata et al.
patent: 2005/0201764 (2005-09-01), Okamoto et al.
patent: 59-53856 (1984-03-01), None
patent: 59-61842 (1984-04-01), None
patent: 63-10231 (1988-01-01), None
patent: 2575404 (1996-10-01), None
patent: 9-90730 (1997-04-01), None
patent: 2005-084072 (2005-03-01), None

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