Electrophotography – Document handling – Copy
Reexamination Certificate
2005-03-22
2005-03-22
Yan, Ren (Department: 2854)
Electrophotography
Document handling
Copy
C399S045000, C400S056000, C271S263000, C271S265040, C324S230000
Reexamination Certificate
active
06871042
ABSTRACT:
A sheet-thickness detector device has a sheet guide with a sheet-guide surface for guiding a sheet between a magnetic field sensor and a magnetic guide element. The magnetic field sensor, having an approach-guide plane disposed upstream in a sheet conveying direction for guiding the sheet to a detection surface, comes into direct contact with the sheet. By the structure mentioned above, the thickness of a sheet is detected so as to determine sheet double feeding and the like without producing sheet jamming.
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Fujii Takayuki
Matsumoto Yuzo
Miyake Norifumi
Moriyama Tsuyoshi
Nemura Masaharu
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