Electrophotography – Machine operation – Job mode
Reexamination Certificate
2006-03-22
2009-08-04
Gray, David M (Department: 2852)
Electrophotography
Machine operation
Job mode
C399S389000, C399S401000
Reexamination Certificate
active
07570897
ABSTRACT:
The length of recording paper being conveyed to an image forming section is detected. If it is found that the length is shorter as a result of the detection, the recording paper is conveyed to a reversing section to be refed to the image forming section to continue conveyance of the recording paper as in the normal image formation, but without performing the image formation. As a result, the sequence of the recording paper ejected to the paper output section is the same as that of normal printing. Thus a user can easily decide the paper on which the image formation is not carried out normally.
REFERENCES:
patent: 2003/0215254 (2003-11-01), Otomo
patent: 10-31394 (1998-02-01), None
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Gray David M
Walsh Ryan D
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