Appeal No. 1999-1931
Application No. 08/734,319
trailing edge of a solid section of an image area. If the pixel forms an edge, the laser
diode’s exposure of that edge is advanced or delayed such that the pixel is properly
located. The amount of advancement or delay depends upon the exposure versus
time/distance characteristics of the imaging station.
Representative independent claim 8 is reproduced as follows:
8. A method of illuminating a photoreceptor comprised of the steps of:
generating a sequence of timing signal;
producing a sequence of image data bits that represent a composite
image comprised of standard image areas and image edges;
sensing the image data bits that represent image edges; and
producing laser light in according with the sequence of image data
bits, wherein the laser light is produced in synchronization with the timing
signals when an image data bit represents a standard image area, and
wherein the laser light is produced earlier when an image data bit represents
an image edge.
The examiner relies on the following references:
Monma et al. (Monma) 4,928,277 May 22, 1990
Hirota 5,357,353 Oct., 18, 1994
Nye et al. (Nye) 5,570,173 Oct. 29, 1996
(filed Oct. 31, 1994)
Kovacs et al. (Kovacs) 5,646,968 Jul. 08, 1997
(filed Nov. 17, 1995)
Claims 1-8 stand rejected under 35 U.S.C. § 103. As evidence of obviousness, the
examiner offers Monma, Hirota and Nye with regard to claims 1-4 and 6-8, adding Kovacs
with regard to claim 5.
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