Electrophotography – Image formation – Development
Patent
1999-10-25
2000-08-08
Grimley, Arthur T.
Electrophotography
Image formation
Development
399 55, G03G 1508
Patent
active
061013579
ABSTRACT:
A developer unit for developing a latent image recorded on an image receiving member with marking particles, to form a developed image, including: a donor member spaced from the image receiving member and adapted to transport marking particles to a development zone adjacent the image receiving member; a donor voltage supply for electrically biasing said donor member, said donor voltage supply having a donor frequency at a first phase; an electrode positioned in the development zone between the image receiving member and the donor member; an electrode voltage supply for electrically biasing said electrode during a developing operation with an alternating voltage to detach marking particles from said donor member, forming a cloud of marking particles in the development zone, and developing the latent image with marking particles from the cloud, said electrode voltage supply uses frequency generation of the donor AC and wire AC modulation frequencies by integer division of the wire AC oscillator thereby minimizing the electrical energy in the frequency spectrum below the modulation frequency that can result in undesirable copy banding.
REFERENCES:
patent: 5943539 (1999-08-01), Hirsch et al.
patent: 5978633 (1999-11-01), Hirsch et al.
Bean II Lloyd F.
Grimley Arthur T.
Moldafsky Greg
Xerox Corporation
LandOfFree
Hybrid scavengeless development using a method for preventing po does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hybrid scavengeless development using a method for preventing po, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hybrid scavengeless development using a method for preventing po will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1158747