Coating apparatus – Program – cyclic – or time control – Having timer
Patent
1982-05-27
1984-05-15
Lawrence, Evan K.
Coating apparatus
Program, cyclic, or time control
Having timer
1525652, 1525653, 118652, 118706, 355 15, G03G 2100
Patent
active
044492413
ABSTRACT:
A toner cleaning apparatus for use in an electrophotographic copying machine in which a photosensitive drum is rotated for a few revolutions after transferring, onto a record paper, a toner image obtained by developing an electrostatic latent image with toners, in order to remove residual toners from the drum and to prepare the drum for the next duplicating operation. A cleaning device, such as a fur brush, is arranged movably with respect to the photosensitive drum and is separated from the drum after the end of a copying operation, but before the drum is stopped. The cleaning fur brush is removed from the drum at such a timing that the pictorial area on the drum surface has just passed through the cleaning fur brush and thus, residual toners on the drum can be effectively removed. By shortening the time duration in which the cleaning fur brush is brought into contact with the photosensitive drum, the drum can be protected against injury, deterioration and filming.
REFERENCES:
patent: 3741157 (1973-06-01), Krause
patent: 3759220 (1973-09-01), Saito et al.
patent: 3792925 (1974-02-01), Milligan et al.
patent: 4026701 (1977-05-01), Till et al.
patent: 4279501 (1981-07-01), Kojima et al.
patent: 4364660 (1982-12-01), Oda
Lawrence Evan K.
Olympus Optical Company Limited
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