The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 1987
Filed:
Apr. 02, 1985
Edward Muka, Rochester, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A multi-format laser printer is disclosed which uses a constantly rotating polygon to line scan an intensity modulated beam of laser light across an image zone. Optical means, which include a cylindrical mirror are provided for causing first and second beam spot sizes to be in focus at the image zone. The first beam spot size is selected to be in focus for a first range of line scan lengths and the second beam spot size is selected to be in focus for at least one predetermined line scan length not in such range. The line scan length in the first range is adjusted by changing the periodicity of modulation of the laser beam. The velocity of the photosensitive member is adjusted to change the length of the output image in the page scan direction.