Appeal No. 96-3392
Application 08/121,512
areas of the photosensitive drum, then surely there are
developers that have a fixed position. The prior art
developing unit is described as a "two-component developing
unit, a magnetic, single-component developing unit,
non-magnetic single-component developing unit, etc."
(specification, page 2, lines 17-19), which indicates that the
moving technique was applicable to all types of developing
units, including one-component developers, to overcome the
problem of applying charged toner to the non-image areas of
the photosensitive drum. Therefore, appellants have not shown
that the two-component developer in Kurokawa is movable.
Appellants have not persuaded us that the examiner erred.
The rejection of claims 1-4, 9, 10, and 15 is sustained.
Claims 5, 11, and 16 -- Kurokawa and Mokusu (Kisu)
Another admittedly conventional technique for preventing
residual toner from adhering to the transfer roller and
causing the paper to be stained during the subsequent printing
process is a mechanism for bringing the transfer roller into
and out of contact with the photosensitive drum as taught in
Mokusu (specification, page 5, lines 11-17; page 6,
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