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US 3,940,272 AGranted
Method of developing an electrostatic latent image
AssigneeXerox Corporation
InventorJames R. Davidson
Life of this patent
Estimating the term…
Abstract
An apparatus for developing an electrostatic latent image. The apparatus is moved from an inoperative position spaced from the latent image to a position in operative communication therewith. After the latent image is developed, the apparatus is moved to the inoperative position thereof.
Claims3
A method of rendering visible an electrostatic latent image, including the steps of:
- activating a drive system for moving an assembly which transports developer mix to a developer roll being rotated by the drive system, whereby the reaction torque produced by the drive system pivots a developer housing having the transport assembly and developer roll located therein to dispose the developer roll adjacent the latent image in operative communication therewith;
- attracting toner particles from the developer roll to the latent image;
- de-activating the drive system to substantially remove the reaction torque being applied to the developer housing;
- and
- resiliently urging the developer housing to pivot disposing the developer roll in an inoperative position spaced from the latent image.
2 more elements
A method of printing including the steps of:
- charging a photoconductive surface to a substantially uniform potential;
- exposing the charged photoconductive surface to a flowing light image of an original to be copied recording a latent image thereon;
- activating a drive system for moving an assembly which transports developer mix to a developer roll being rotated by the drive system, whereby the reaction torque produced by the drive system pivots a developer housing having the transport assembly and developer roll located therein to dispose the developer roll adjacent the photoconductive surface in operative communication therewith;
- attracting toner particles from the developer roll to the latent image;
- de-activating the drive system to substantially remove the reaction torque being applied to the developer housing;
- and
- resiliently urging the developer housing to pivot disposing the developer roll in an inoperative position spaced from the photoconductive surface.
4 more elements
Dependencies are inferred from the claim text.