Image forming apparatus which memorizes a paper jam

Details Image forming apparatus which memorizes a paper jam Image forming apparatus which memorizes a paper jam

2007-07-31

2011-12-20

Colilla, Daniel J (Department: 2854)

Electrophotography

Diagnostics

Document handling

C400S076000

Reexamination Certificate

active

08081886

ABSTRACT:
The present invention can include an image forming apparatus including a conveying device configured to convey a medium for recording along a conveyance path, an image forming portion configured to form an image on the medium for recording conveyed by the conveying device, a first medium detecting device configured to detect the presence and absence of the medium for recording at a first position in the conveyance path, a second medium detecting device configured to detect the presence and absence of the medium for recording at a second position in the conveyance path, and a storage device configured to store information on a state where after the medium for recording is detected by the first medium detecting device, the absence of the medium for recording is detected by the first medium detecting device, and then the medium for recording is not detected by the second medium recording detecting device.

REFERENCES:
patent: 6118962 (2000-09-01), Casper et al.
patent: 2004/0197108 (2004-10-01), Yamagata et al.
patent: 2006/0145414 (2006-07-01), Yokobori et al.
patent: 6-48612 (1994-02-01), None
patent: 06-171794 (1994-06-01), None
patent: 08-106244 (1996-04-01), None
patent: 9-124185 (1997-05-01), None
patent: 2001-158566 (2001-06-01), None
patent: 2002-258689 (2002-09-01), None
Machine translation of JP Publ. No. 09-124185 to Suda published on May 13, 1997.
Machine translation of JP Publ. No. 06-171794 to Tsuchiya published on Jun. 21, 1994.
Japanese Notice of Reasons for Refusal, w/ English translation thereof, issued in Patent Application No. JP 2006-209846 dated on Jul. 31, 2008.

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