Appeal No. 1998-0883
Application 08/498,570
This is a decision on appeal under 35 U.S.C. § 134 from
the final rejection of claims 1, 3, 5, and 7. Claim 2
stands objected to as depending from a rejected base claim.
Claims 4 and 6 have been canceled.
We reverse.
BACKGROUND
The disclosed invention is directed to a color image
forming apparatus and method that avoids direct
superimposition of the dots that make up the color images.
The centers of the dots are shifted slightly from each other
so they are not directly superimposed, which tends to reduce
undesirable moiré pattern effects.
Claim 1 is reproduced below.
1. A multi-color image forming apparatus
comprising:
means for receiving color image signals that are
separated by color;
means for assigning screen angles to the
respective color image signals;
means for generating clock signals having phases
that deviate from one another sequentially by 1/8 of a
period of a dot reference clock signal; and
means for selecting one of the generated clock
signals for each color on a scanning line basis so as
to produce the respective assigned screen angles and to
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