Typewriting machines – Means auxiliary to typewriting function – Indicator means
Reexamination Certificate
2006-03-28
2006-03-28
Colilla, Daniel J. (Department: 2854)
Typewriting machines
Means auxiliary to typewriting function
Indicator means
C400S703000, C356S445000, C356S446000, C356S600000, C399S045000, C250S239000
Reexamination Certificate
active
07018121
ABSTRACT:
A media sensor for an image forming apparatus is operative to sense and distinguish opaque, transparent or no media in a media path. In one embodiment, an optical source and detector are positioned on opposite sides of the media path, at an acute, non-zero angle with respect to a direction normal to the media path. In other embodiments, an optical source and detector are co-located on the same side of the media path with an optical barrier between them, and one or more reflective surfaces positioned on the opposite side. With no media in the media path, the detector receives a readily detectable amount of optical energy emitted by the source. For opaque media, the detector receives very little, if any, optical energy emitted by the source. For transparent media, the detector receives a level of optical energy between that in the cases of opaque media and no media.
REFERENCES:
patent: 1917379 (1933-07-01), Lowry
patent: 3360652 (1967-12-01), Bernous
patent: 3435240 (1969-03-01), Brunton
patent: 3522739 (1970-08-01), Coor et al.
patent: 3832065 (1974-08-01), Sullivan et al.
patent: 3910701 (1975-10-01), Henderson et al.
patent: 4428041 (1984-01-01), Honkawa
patent: 4540887 (1985-09-01), Minerd et al.
patent: 4685982 (1987-08-01), Kucheck
patent: 4779988 (1988-10-01), Horiguichi
patent: 4794274 (1988-12-01), Lohn
patent: 4975571 (1990-12-01), McMurtry et al.
patent: 4983854 (1991-01-01), Mizuno et al.
patent: 5084627 (1992-01-01), Ueki et al.
patent: 5139339 (1992-08-01), Courtney et al.
patent: 5283424 (1994-02-01), Acquaviva et al.
patent: 5323176 (1994-06-01), Sugiura et al.
patent: 5329338 (1994-07-01), Merz et al.
patent: 5354995 (1994-10-01), Endo et al.
patent: 5608207 (1997-03-01), Allen et al.
patent: 5751443 (1998-05-01), Borton et al.
patent: 5754213 (1998-05-01), Whritenor
patent: 5764251 (1998-06-01), Hashimoto
patent: 5852299 (1998-12-01), Kimura et al.
patent: 5925889 (1999-07-01), Guillory et al.
patent: 6006668 (1999-12-01), Rehmann
patent: 6018164 (2000-01-01), Mullens
patent: 6192141 (2001-02-01), Ahn
patent: 6217168 (2001-04-01), Elgee
patent: 6237847 (2001-05-01), Milne
patent: 6255665 (2001-07-01), Elgee et al.
patent: 6291829 (2001-09-01), Allen et al.
patent: 6325505 (2001-12-01), Walker
patent: 6364556 (2002-04-01), Barbera et al.
patent: 6386669 (2002-05-01), Scofield et al.
patent: 6386676 (2002-05-01), Yang et al.
patent: 6400912 (2002-06-01), Tanaka et al.
patent: 6425650 (2002-07-01), Walker et al.
patent: 6433329 (2002-08-01), Butka et al.
patent: 6462822 (2002-10-01), Haines et al.
patent: 6464414 (2002-10-01), Washnock
patent: 6557965 (2003-05-01), Walker et al.
patent: 6561643 (2003-05-01), Walker et al.
patent: 6585341 (2003-07-01), Walker et al.
patent: 2002/0005497 (2002-01-01), Sano
patent: 2002/0043614 (2002-04-01), Miyamoto et al.
patent: 2003/0001939 (2003-01-01), Scofield et al.
patent: 2003/0016085 (2003-01-01), Yamazaki
patent: 2003/0043365 (2003-03-01), Ross et al.
patent: 2003/0044189 (2003-03-01), Okitsu et al.
Barry Raymond Jay
Maul Michael David
Rehmel Steven R.
Richey John Parker
Coats and Bennett PLLC
Colilla Daniel J.
Ferguson Marissa
Lexmark International Inc.
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