Photocopying – Contact printing – Light boxes
Patent
1994-06-30
1996-01-09
Smith, Matthew S.
Photocopying
Contact printing
Light boxes
355245, 355260, 355269, 355270, G03G 2100
Patent
active
054833221
ABSTRACT:
A developing unit for an electrophotographic apparatus comprises a photosensitive body for forming a latent image thereon, a developing roll utilizing two-component developer containing toner and carrier to develop the latent image formed on the photosensitive body, a recovery roll, provided downstream of the developing roll, for recovering carrier from a surface of the photosensitive body, and at least one recess formed in an inner surface of the developing unit which is confronted with an outer cylindrical surface of the recovery roll, in such a manner that air pressure formed in the recess prevents the developer from scattering out of the developing unit.
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Doi Kouji
Ogura Yoshio
Otome Yukio
Takeuchi Youichi
Ueno Hiroshi
Hitachi Koki Co,. Ltd.
Smith Matthew S.
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