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:
Apr. 24, 2001
Filed:
Mar. 30, 1999
Toru Tanibata, Wakayama, JP;
Noritsu Koki Co., Ltd., Wakayama, JP;
Abstract
In an image recording apparatus, exposure light amounts measured by a sensor immediately after a PLZT head performs an exposure with exposure light amounts corrected first by a controller using an original scanner or the like are stored in a memory as correction reference exposure light amounts. Thereafter, the controller performs an exposure correction such that the exposure light amounts measured by the sensor agree with the correction reference exposure light amounts. At this time, since the correction reference exposure light amounts are set according to the precision of the sensor, a shortage of the exposure light amount can be easily recognized by comparing both exposure light amounts even if the precision of the sensor is not high. As a result, the exposure correction can be reliably performed. Accordingly, the exposure light amounts can be accurately corrected even when using a sensor having a relatively large scanning displacement. As a result, the price of the image recording apparatus can be reduced.