Appeal No. 1998-0126
Application 08/272,700
2, 3, 12 and 13 were canceled in an amendment after final
rejection, paper no. 10, received October 22, 1996.
The invention relates to a corona discharge device
used in an electrophotographic image forming apparatus.
Corona discharge devices are used for charging the
photosensitive drum in such an apparatus. In particular,
noting Figures 1(A) to 1(C), the discharge device has a row of
sharp ends 11, arranged with a pitch P, and spaced from a
charge receiving member (e.g., drum) by a distance D. A
preferred relationship between D and P is expressed as
4#D/P#6. The sharp ends 11 are made of a conductive material
containing nickel, chromium and molybdenum, and are coated
with a dielectric ceramic.
Representative independent claims 1, 4, 5 and 6 are
reproduced as follows:
1. A corona discharge device used in an
electrophotographic image forming apparatus comprising:
a discharge member having sharp discharge ends; and
means for applying to said discharge member a
discharge voltage containing at least an AC voltage component.
4. A corona discharge device used in an
2-2-
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