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.

Date of Patent:
Feb. 17, 1981

Filed:

Dec. 21, 1978
Applicant:
Inventors:

Tomohisa Mikami, Kawasaki, JP;

Tadashi Matsuda, Yokohama, JP;

Fumitaka Abe, Inagi, JP;

Assignee:

Fujitsu Limited, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
346160 ; 178 15 ; 3461 / ; 346109 ; 358199 ; 358206 ;
Abstract

A non-impact printer comprising: a light source; a light modulator; a light modulation controller including a print timing control pulse generator; a light beam reflector made of a polygonal mirror; and a photoconductor drum upon which a modulated light beam scans an area used for scanning, wherein the print timing control pulse generator further includes a compensating means basically comprised of a means for measuring the respective scanning times required for scanning the respective lines to be scanned on the area used for scanning and a means for adjusting the periods of the print timing control pulses in accordance with each scanning time, thereby the same number of print timing control pulses can always be produced for every line to be scanned on the area used for scanning.


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