Electrophotography – Image formation – Development
Reexamination Certificate
2008-04-08
2010-11-09
Brase, Sandra L (Department: 2884)
Electrophotography
Image formation
Development
C399S053000
Reexamination Certificate
active
07831182
ABSTRACT:
A disclosed developing device includes a developing roller; a supply roller that is in contact with the developing roller and configured to supply toner to the developing roller; a current measuring unit configured to measure an electric current that flows from the developing roller to the supply roller when the toner is supplied from the supply roller to the developing roller; and an error determining unit configured to detect a development error of the developing roller based on the electric current measured by the current measuring unit.
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Asuwa Kenji
Inoue Ryuji
Konishi Rumi
Murayama Shin
Nakagawa Shuuichi
Brase Sandra L
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Ricoh & Company, Ltd.
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