Photocopying – Contact printing – Light boxes
Patent
1993-01-21
1994-11-29
Grimley, A. T.
Photocopying
Contact printing
Light boxes
118656, 118661, 355211, 355259, 355260, G03G 1506
Patent
active
053694759
ABSTRACT:
A developing system having a developer tank supporting a developing roll formed by a sleeve incorporating a permanent-magnet member, and guide: rollers having a diameter slightly larger than that of the sleeve, and; fitted at both ends of the sleeve in the longitudinal direction in such a manner as to come in contact with the surface of an image carrier; the developer tank being rotatably supported by a supporting shaft that is supported in parallel with the sleeve by supporting frames provided outside of both ends of the developer tank; the guide rollers and the surface of the image carrier being adapted to be engagable with and disengagable from each other, in with a supporting portion of one end of the supporting shaft and one of the supporting frames is formed in such a manner as to be constrained in motion in the axial direction, and to be movable in the direction vertical to the axis; and the supporting shaft is forced onto the side of the image carrier by a pushing member.
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Grimley A. T.
Hitachi Metals Ltd.
Lee Shuk Y.
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