Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Reexamination Certificate
2007-12-19
2010-12-28
Le, Que T (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
C250S236000
Reexamination Certificate
active
07858923
ABSTRACT:
A light beam scanning apparatus capable of forming a high contrast electrostatic latent image. A polygon mirror scans a light flux emitted from a light source in a main scanning direction. An electrostatic latent image in an irradiation position irradiated by the scanned light flux is formed onto a photosensitive drum. An electro-optic crystal structure disposed in a light path between the light source and the polygon mirror deflects a course of the light flux emitted from the light source to the main scanning direction by applying a voltage. A controller maintains the irradiation position on the photosensitive drum irradiated by the light flux, by controlling a voltage to be applied to the electro-optic crystal structure according to the scanning information during the time period in which an electrostatic latent image corresponding to one dot is formed on the photosensitive drum.
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Bennett Jennifer
Canon Kabushiki Kaisha
Le Que T
Rossi Kimms & McDowell LLP
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