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US 5,862,438 AGranted
Reduced interdocument zone in a printing system having a single developer power supply
AssigneeXerox Corporation
InventorJeffrey J. Folkins
Life of this patent
Estimating the term…
Abstract
A color electrophotographic printing system that uses one switched developer power supply for all developers and that enables a reduced size by reducing the interdocument zone. The interdocument zone is reduced by using a developer order in which the last used developers in a development cycle is physically located first. Beneficially, the developer that is used first is physically located last.
Claims2
A color printing machine, comprising:
- a photoreceptor rotating in a predetermined direction;
- an exposure station for exposing said photoreceptor to produce a first latent image, a second latent image, and a third latent image, wherein said first, second, and third latent images each represent a part of a composite latent image, and wherein said first latent image is produced before said second latent image and wherein said second latent image is produced before said third latent image;
- a first developer for selectively depositing a first toner layer on said third latent image, wherein said first developer is located downstream of said exposure station;
- a second developer for selectively depositing a second toner layer on said second latent image, wherein said second developer is located downstream of said first developer;
- a third developer for selectively depositing a third toner layer on said first latent image, wherein said third developer is located downstream of said second developer;
- and
- a power supply producing electrical power for powering said first, second, and third developers, where a portion of the electrical power from said power supply powers each of said first, second and third developers during a period of time in which each of said first, second and third developers are depositing toner.
4 more elements
Dependencies are inferred from the claim text.