Electrophotography – Diagnostics – Component present or mounted
Reexamination Certificate
2006-09-14
2009-08-04
Beatty, Robert (Department: 2852)
Electrophotography
Diagnostics
Component present or mounted
C399S113000
Reexamination Certificate
active
07570891
ABSTRACT:
Several different apparatuses are provided that can be configured to detect whether a developing cartridge, an image carrier cartridge, and a process cartridge are installed in an image forming apparatus. A shielding member is configured to move between a blocking position where the shielding member blocks light emitted from a detector provided in the main body frame of an image forming apparatus and an unblocking position where the shielding member does not block the light emitted from the detector. The shielding member is in the blocking position when the developing cartridge is removed from an image carrier cartridge and in the unblocking position when the developing cartridge is installed in the image carrier cartridge. Also, an installation detecting device may be provided to determine whether an image carrier cartridge and a developing cartridge are installed in the main body frame based on the amount of the light received by a detector.
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Banner & Witcoff , Ltd.
Beatty Robert
Brother Kogyo Kabushiki Kaisha
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