Konica Minolta, Inc.

Yasunori Inaba

Mitsuo Kaburagi

A glossiness detector includes a glossiness sensor, a glossiness corrector, and a reference plate. The glossiness corrector corrects glossiness detected by the glossiness sensor. The reference plate is used for correction processing of the glossiness sensor. Then, the glossiness corrector acquires a glossy reflection profile of the reference plate that has been detected in advance. The glossiness corrector corrects the glossiness according to the reference plate on the basis of the glossy reflection profile and a gloss distribution of the reference plate that has been detected by the glossiness sensor.

Glossiness detector, image forming apparatus, and sheet conveyance system

Provided are an image forming apparatus and an inspection method of an image reading section capable of precisely detecting dirt that adheres to a dustproof glass. The image forming apparatus is provided with an image forming section, an image reading section, and a controlling section. The image reading section has a light source, a sensor, and a dustproof glass. At the time of the compensation processing operation of the image reading section, the controlling section detects dirt on the dustproof glass on the basis of a detection value acquired by the sensor when light is emitted from the light source onto a reflective member for compensation that specularly reflects the light.

Image forming apparatus and inspection method of image reading section

An inkjet recording device includes: an inkjet head that forms an image on a recording medium by ejecting ink containing a phosphor onto the recording medium; an ultraviolet light source that irradiates the image formed on the recording medium with ultraviolet rays; and an imager that detects fluorescence emitted by the image by the irradiation of the ultraviolet rays.

Inkjet recording device and test chart detection method

An inkjet recording apparatus includes: a conveyor having an endless conveying belt that conveys a recording medium; an image former that forms an image on the recording medium conveyed by the conveying belt; a correction mark formed on the conveying belt; a line sensor disposed downstream of the image former in a conveying direction of the recording medium, the line sensor having a linear detection surface; and a hardware processor that controls the conveying belt, the image former, and the line sensor, wherein the hardware processor calculates an inclination angle of the detection surface of the line sensor with respect to a width direction orthogonal to the conveying direction, based on image data of the correction mark read by the line sensor, and corrects image data of the line sensor based on the inclination angle.

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Hino, Japan

Yasunori Inaba