Appeal No. 97-3467 Application 08/279,748 wherein there is the following relationship: * =cos { 2 cos" X cos T - cos " }-1 2 ( =tan { sin" / ( 2cos" x sinT x cosT ) }-1 (* sin( - " ) < p/f wherein "f" designates the focal length of the scanning optical system; """ the incident angle of a drawing beam upon the reflecting surface of the deflecting mirror in a sub-scanning direction normal to said main scanning direction; "T" the angle of a line normal to the reflecting surface of the deflecting mirror with respect to a bisector of the optical axis of the scanning optical system and the axis of an incident beam; "p" the pitch of the aligned drawing beams; "*" the angle of the drawing beams reflected by the reflecting surface of the deflecting mirror with respect to the optical axis of the scanning optical system; and, "(" the angle of a line connecting an image forming point of the drawing beams reflected by the reflecting surface on the drawing surface and an intersecting point on the optical axis of the scanning optical system to the drawing surface, with respect to the sub-scanning direction. Opinion We do not sustain the examiner’s rejection of claims 1-4 and 4Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 NextLast modified: November 3, 2007