Abstract A developing apparatus comprising an electrically insulative cylinder rotatably mounted relative to a fixed magnet therein in which a carrier-toner mix is fed onto said cylinder for forming magnetic brushes on the outer surface of the cylinder for brushing a photosensitive paper bearing an electrostatic latent image. The guiding means for guiding the paper along the brushes comprise generally linear reciprocating means disposed between an endless belt and the cylinder and engaging with guide rollers. The reciprocating means reciprocate transversely to the path of the paper and through the carrier-toner mix of the brushes so that the paper is prevented from deviating from its path and the developer powder forming the brushes is stirred.
An electrophotographic developing apparatus comprising: an electrically insulative cylinder rotatably mounted relative to a fixed magnet therein having substantially horizontally aligned fields of magnetic poles; means for feeding a magnetic carrier toner mix onto said cylinder for forming magnetic brushes on the outer surface of said cylinder at said poles; and guiding means for guiding a photographic substrate sheet along said brushes, said guiding means including a first pair of guide rollers carrying a substantially vertically extending endless belt juxtaposed to each side of said cylinder opposite to one of said poles, a second pair of guide rollers pressing against the guide rollers of said first pair from the outside of said belt nearest to said cylinder, and a wire-shaped reciprocatory means engaging with at least one of said rollers of said second pair to reciprocate removed from said substrate transversely to the path of said substrate and through the carrier toner mix of the brush at said one pole.
Claim 2
Dependent Claim
160 words
An electrophotographic developing apparatus comprising: an electrically insulative cylinder rotatably mounted relative to a fixed magnet therein having substantially horizontally aligned fields of magnetic poles; means for feeding a magnetic carrier toner mix onto said cylinder for forming magnetic brushes on the outer surface of said cylinder at said poles; and guiding means for guiding a photographic substrate sheet along said brushes, said guiding means including a first pair of guide rollers carrying a substantially vertically extending endless belt juxtaposed to each side of said cylinder opposite to one of said poles, a second pair of guide rollers pressing against the guide rollers of said first pair from the outside of said belt nearest to said cylinder, and a wire-shaped reciprocatory means engaging with at least one of said rollers of said second pair to reciprocate removed from said substrate transversely to the path of said substrate and through the carrier toner mix of the brush at said one pole.