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US 5,308,732 AGranted
Magnetic brush cleaning processes
AssigneeXerox Corporation
InventorsRichard W. Bigelow, Grace T. Brewington, Kristen M. Natale, Richard P. Germain
Life of this patent
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Abstract
A process for extending the life of magnetic brush cleaners comprising carrier particles, a magnetic roll, and biased detone roll with a scraper by treating said carrier particles with a metal oxide.
Claims9
An imaging process consisting essentially of (1) charging an imaging member in an imaging apparatus;
- (2) creating on the member a latent image comprising areas of high, intermediate, and low potential;
- (3) developing the low areas of potential with a first developer comprising carrier and a toner comprised of resin, pigment, and a charge enhancing additive;
- (4) developing the high areas of potential with a second developer comprising carrier and a second toner comprised of resin, pigment, and a charge enhancing additive;
- (5) transferring the resulting developed image to a substrate;
- (6) fixing the image thereto;
- and (7) cleaning residual toner from said imaging member and wherein there is selected for cleaning a magnetic brush consisting essentially of carrier particles, a magnetic roll, and biased detone roll with scraper, and wherein the carrier particles are treated with a metal oxide.
3 more elements
An imaging process consisting essentially of (1) charging an imaging member in an imaging apparatus;
- (2) creating on the member a latent image comprising areas of high, intermediate, and low potential;
- (3) developing the low areas of potential with a first developer comprising carrier and a toner comprised of resin, pigment, and a charge enhancing additive;
- (4) developing the high areas of potential with a second developer comprising carrier and a second toner comprised of resin, pigment, and a charge enhancing additive;
- (5) transferring the resulting developed image to a substrate;
- (6) fixing the image thereto, wherein the improvement resides in selecting a magnetic brush for cleaning which magnetic brush consists essentially of carrier particles, and a magnetic roll, and a biased detone roll with a scraper;
- and wherein the carrier particles are treated or coated with a metal oxide.
3 more elements
Dependencies are inferred from the claim text.