Patent Number: 6,166,751

Title: Image forming apparatus

Abstract: An image forming apparatus with toner saving mode is disclosed. This image forming apparatus comprising a normal ditheringing matrix and a toner saving mode ditheringing matrix having threshold data higher than that of the normal ditheringing matrix. The normal ditehring matrix is for image data processing under non-toner saving mode and the toner saving mode matrix is for image data processing under toner saving mode. The selection of the dithering matrix is executed by a central processing unit in response with the existance of order for toner saving. The processed image data processed by one of the dithreing matrix maintains the expression of linear tonality.

Inventors: Yamada; Hirokazu (Kobe, JP)

Assignee: Minolta Co., Ltd.

International Classification: G06K 15/12 (20060101); H04N 1/407 (20060101); H04N 1/405 (20060101); B41J 002/435 (); G01D 015/14 (); H01J 029/70 (); H01J 033/00 ()

Expiration Date: 12/26/2017