Ricoh Company, Ltd.

Yusuke Taneda

Kohei Shimbo

Yoichi Kubota

Hideyuki Kihara

Yuta Nagata

Shozo Murata

Akihiro Fuchigami

Yoichi Okamoto

Kohji Tsukahara

An information processing apparatus includes processing circuitry. The processing circuitry detects an abnormality in an image reading apparatus from a first spectral reflectance and a second spectral reflectance, the first spectral reflectance being generated based on data read from a reference white plate installed in the image reading apparatus, the second spectral reflectance being generated before generation of the first spectral reflectance, and identifies a cause of an abnormality in the image reading apparatus in a case where the processing circuitry detects the abnormality.

Information processing apparatus, abnormality detection method, storage medium, and information processing system

A color chart is for evaluating printing quality of an image forming apparatus. The color chart includes identification information and a color evaluation patch. The identification information is on an image forming apparatus on which evaluation of printing quality is to be performed. The color evaluation patch includes a plurality of color patches for performing evaluation of printing quality on the image forming apparatus indicated by the identification information.

Color chart, information processing apparatus, and information processing system

A color chart is for performing color adjustment on an image forming apparatus. The color chart includes identification information and a color adjustment patch. The identification information is on an image forming apparatus to which color adjustment is to be applied. The color adjustment patch includes a plurality of color patches for performing color adjustment on the image forming apparatus indicated by the identification information.

Color chart for performing color and in-plane unevenness on an image forming apparatus

A spectral property acquisition apparatus includes: a first conveying device to convey an object in predetermined conveying direction; a color data acquisition device including a plurality of spectroscopic sensors in the conveying direction, the plurality of spectroscopic sensors receive light emitted and reflected by the object to acquire color data on the object; a second conveying device to convey the color data acquisition device in a direction orthogonal to the conveying direction; and circuitry to estimate a spectral property of the object based on the color data. The circuitry controls the first conveying device so as to generate predetermined tension for the object in a color data acquisition area in which the color data on the object is acquired.

Spectral property acquisition apparatus and image forming apparatus

A spectral characteristic acquisition device according to one aspect of the disclosed technique includes: a color data acquirer comprising a plurality of spectral sensors receiving light reflected from an object irradiated with light and acquiring color data of the object; circuitry configured to estimate a spectral characteristic of the object on a basis of the color data and calibrate the spectral characteristic calculator on a basis of the color data obtained from a calibration color mark having a color mark of a known spectral characteristic; a first conveyer configured to convey the object in a predetermined conveyance direction and conveying the color data acquirer in a direction intersecting the predetermined conveyance direction; and a second conveyer configured to convey the calibration color mark in the predetermined conveyance direction.

Spectral characteristic acquisition device, image forming apparatus, and image forming apparatus management system

A spectral characteristic obtaining apparatus includes a color information obtaining unit including a plurality of spectral sensors aligned in an array direction, the spectral sensors being configured to receive light reflected from an object so as to obtain first color information of the object; a spectral characteristic calculating unit configured to estimate a spectral characteristic of the object based on the first color information by using a preset transformation matrix; a calibration color index configured to include a region of a color with a known spectral characteristic; and a transformation matrix calibrating unit configured to calibrate the transformation matrix by using second color information obtained from the calibration color index, wherein the spectral sensors are configured to obtain the second color information from the same region included in the calibration color index, while relative positions thereof with respect to the calibration color index are changed at a time of calibration.

Spectral characteristic obtaining apparatus, image forming apparatus, and image forming system

A spectral characteristic acquiring apparatus includes a color data acquiring unit including a plurality of spectral sensors configured to receive reflected light from an object that has been irradiated with light to acquire color data of the object, a spectral characteristic calculating unit configured to estimate spectral characteristics of the object based on the acquired color data of the object using a preset transformation matrix, a first conveying unit configured to convey the object in a predetermined conveying direction, and a second conveying unit configured to convey the color data acquiring unit in a direction intersecting the predetermined conveying direction. The plurality of spectral sensors are arrayed in the predetermined conveying direction.

Spectral characteristic acquiring apparatus, image forming apparatus, image forming system, image forming apparatus management system, and image forming apparatus management method

A dry-type cleaning chassis for cleaning a cleaning target by colliding the cleaning media with the cleaning target, the cleaning media being blown by an air flow includes an internal space where the cleaning media are to fly; an opening part being in contact with the cleaning target so that the cleaning media collide with the cleaning target; an air inlet duct introducing external air into the internal space; a suction port generating a first air flow caused by a circulating air flow in the internal space by suctioning the introduced external air; an injection port generating at least a second air flow increasing a speed of the cleaning media flown by the circulating air flow; and a porous unit passing objects removed from the cleaning target to a suction port side.

Growing community of inventors

Kanagawa, Japan

Yusuke Taneda