Kyocera Document Solutions Inc.

Ayumi Nakano

Yoshiaki Ikebata

Lin Lu

Atsushi Ishizaki

An image evaluation system includes an image forming apparatus and an information processing apparatus. The image forming apparatus prints a reference document including pattern images. The image forming apparatus prints, on the reference document, a check region including check items with respect to the image quality of the printed result. The image forming apparatus reads the printed reference document to generate reference document data. The image forming apparatus transmits the generated reference document data to the information processing apparatus. Based on the received reference document data, the information processing apparatus recognizes a check item selected in the check region.

Image evaluation system

First acquisition processing portion acquires first position and second position in main scanning direction. Second acquisition processing portion acquires, from third specific area having second specific length in sub scanning direction on color image, a plurality of third positions of a plurality of pixels of first color in main scanning direction, second specific length being larger than first specific length that is length in peripheral direction of each of image carriers. First derivation processing portion, based on plurality of third positions, derives first color shift amount that indicates an amount of shifting of pixels of first color in main scanning direction in third specific area. Second derivation processing portion, based on first position, second position, and first color shift amount, derives second color shift amount that indicates an amount of shifting between first color and second color in main scanning direction in first specific area.

Data processing device and image forming apparatus

An image processing apparatus includes an image forming unit of an electrophotographic method, a detection processing unit, and a determination processing unit. The detection processing unit detects a streaky image along a sub-scanning direction from a first image and a second image among images indicated by image data. The first image has a print density equal to or more than a predetermined reference print-density value, and the second image has a print density less than the reference print-density value. The determination processing unit determines a cause of abnormality in the image forming unit based on a detection result of the streaky image by the detection processing unit for each of the first image and the second image.

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Osaka, Japan

Ayumi Nakano