Image forming apparatus capable of detecting edge portion of...

Details Image forming apparatus capable of detecting edge portion of... Image forming apparatus capable of detecting edge portion of...

2011-08-09

2011-08-09

Karmis, Stefanos (Department: 3653)

Sheet feeding or delivering

Feeding

By means to convey sheet

C271S265010, C271S270000

Reexamination Certificate

active

07992868

ABSTRACT:
A sheet detection unit of an image forming apparatus includes a light receiving unit including a plurality of light receiving elements arranged in a sheet feeding direction. A computation processing unit shifts signals from the elements in synchronization with a sheet feeding speed and makes additions, increases a signal change level, and stores the signals in buffers in a result storage unit. A sheet position determination unit detects a position of an edge portion of a sheet being fed based on distribution of data stored in the buffers.

REFERENCES:
patent: 6554275 (2003-04-01), Tranquilla
patent: 6788322 (2004-09-01), Morita
patent: 2005/0185229 (2005-08-01), Sano et al.
patent: 2009/0072475 (2009-03-01), Sawada
patent: 6-183605 (1994-07-01), None
patent: 7-236033 (1995-09-01), None
patent: 2003-223088 (2003-08-01), None
patent: 2003-248410 (2003-09-01), None
patent: 2004-284793 (2004-10-01), None
patent: 2005-12783 (2005-01-01), None
patent: 2007-314273 (2007-12-01), None
Japanese Decision to Grant Patent mailed Nov. 2, 2011, directed to counterpart Japanese Application No. 2008-312164; 6 pages.

Affiliated with

Also associated with

Rating

Image forming apparatus capable of detecting edge portion of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image forming apparatus capable of detecting edge portion of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image forming apparatus capable of detecting edge portion of... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2743327