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|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||355/3DD ; 118/688 ; 118/658 ; 222/DIG ; 1|
|발명자 / 주소||
|출원인 / 주소||
|인용정보||피인용 횟수 : 2 인용 특허 : 6|
A developing apparatus is disclosed which has a toner bath with a magnetic toner placed therein, the toner being supplied via a developing role to a developing gap between an image carrying substance and the developing roll, and a toner supply bath for supplying the magnetic toner to the toner bath, a latent image formed on the image carrying substance being developed with the magnetic toner by means of a magnetic brush development. The developing apparatus has a detector member for generating a signal when the magnetic toner is absent in the toner bath,...
A developing apparatus with a magnetic toner comprising: a developing roll having a cylindrical sleeve of nonmagnetic material and a permanent magnet member with a plurality of magnetic poles on its surface, said magnetic member being provided in said sleeve, said developing roll being provided close to an image carrying substance having an electrostatic latent image held on its surface so that a developing gap is formed between said image carrying substance and said developing roll, said sleeve and said permanent magnet member being relatively rotated t...