Electrophotography – Machine operation – Job mode
Reexamination Certificate
2006-03-14
2008-10-28
Gray, David M. (Department: 2852)
Electrophotography
Machine operation
Job mode
C399S364000, C399S392000
Reexamination Certificate
active
07444095
ABSTRACT:
The present invention is an image forming apparatus having no two-sided printing mechanism in which, by setting a front side printed paper sheet in a manual paper feed section, the paper sheet is taken from the manual paper feed section and a back side printing is executed. At this moment, when a paper detecting switch24detects presence of a paper sheet on a manual paper feed tray23at the end of the front side printing, a message meaning to remove the paper sheet and thereafter to set the front side printed paper sheet is given. Whether the paper sheet is removed or not is detected according to a change-over of the paper detecting switch24, and the back side printing is executed after the paper sheet is removed and the front side printed paper sheet is set. As a result, erroneous back side printing on an improper paper sheet can be prevented and a two-sided printing can be correctly executed.
REFERENCES:
patent: 7-271508 (1995-10-01), None
patent: 09216431 (1997-08-01), None
patent: 2004-279449 (2004-10-01), None
patent: 2004-279451 (2004-10-01), None
patent: 2004279449 (2004-10-01), None
Gray David M.
Kyocera Mita Corporation
Service Kristofferson
Smith , Gambrell & Russell, LLP
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