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:
Nov. 27, 2007

Filed:

Dec. 10, 2004
Applicant:

Dong-cheol Ahn, Suwon-si, KR;

Inventor:

Dong-cheol Ahn, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

An image-forming apparatus including a valid signal generator to input print data and a video clock to synchronize the print data, and generate binary image data, a pixel counter to calculate the number of pixels of the print data based on the binary image data, a data stream counter to calculate the number of particular data streams of the binary image data, a coefficient memory to store coefficients with respect to average toner consumption amounts per pixel, a weight memory to store a lookup table containing weights corresponding to percentages of the number of pixels to the particular data streams, and a controller to calculate a percentage of the number of pixels to the number of particular data streams to read out a weight, and calculate the consumed amount of toner by use of the read weight, the number of pixels, and a toner consumption amount coefficient.


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