Electrophotography – Diagnostics – Consumable
Reexamination Certificate
2007-04-16
2010-12-07
Tran, Hoan (Department: 2884)
Electrophotography
Diagnostics
Consumable
C399S029000, C399S119000
Reexamination Certificate
active
07848665
ABSTRACT:
The image forming apparatus include: a resistance detection section (14) for measuring a volume resistivity of a two component developer (11) on a surface of a developer bearing member (12); a resistance memory section (16) for storing therein a preset volume resistivity; a resistance comparison section (15) for comparing the volume resistivity of the two component developer (11) which has been measured by the resistance detection section (14) with the preset volume resistivity stored in the resistance memory section (16); and a control section (17) for carrying out a process for replacing the two component developer or carrier if the volume resistivity of the two component developer (11) is lower than the preset volume resistivity.
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International Search Report for PCT/JP2007/058247 mailed July 17, 2007.
English translation of the International Search Report mailed July 17, 2007 in corresponding JP PCT application PCT/JP2007/058247.
Nixon & Vanderhye PC
Sharp Kabushiki Kaisha
Tran Hoan
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