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:
Jan. 20, 2004
Filed:
Jun. 01, 2000
Victor Company of Japan, Ltd., Kanagawa-ken, JP;
Abstract
Each pixel receives a digital picture data having a multi-gradation data. A line composed of printing pixels having a thickness difference of multi-gradations is obtained on a recording paper by controlling whether or not there exist ink transcription by each gradation with a line head. A digital printer of printing a picture by recording a plurality of lines on a recording paper with scanning by the line head, comprising counting devices ( - - ) for counting a number of pixels to print at each gradation, dividing devices ( - - - - - - ) for dividing all pixels into several groups in accordance with the counting devices and deciding devices ( - - - - ) for deciding a number of groups. A range of grouping and as number of groups can be changed so as for a number of printing pixels in every group to be equal to a predetermined number of simultaneous turn-on pixels. During a printing operation at each gradation, a pixel of simultaneously printing in one line is limited to a unit of the group and prints each gradation a plurality of times. Accordingly, a number of simultaneous turn-on pixels can always be held constant except a specific case.