Konica Minolta, Inc.

Tomo Kitada

Satoshi Nishida

Takeshi Maeyama

Daisuke Murakami

Junji Murauchi

Toshiki Hayami

Takashi Kawanago

Kazuki Kobori

Morio Osada

A cleaning device includes a thin plate-shaped first blade that cleans a surface of a toner carrying body by making a tip portion come in contact with the toner carrying body to carry toner. The first blade includes a substrate and a coat layer covering a surface of the substrate. In the first blade, a cross-sectional shape, in a thickness direction, of the tip portion is a convex shape, or a protruding shape in which a center side protrudes more than an end portion of a contact side.

Cleaning device and image forming apparatus

An image forming apparatus which forms a toner image on an image carrier based on image formation data, and transfers the toner image onto a sheet having an unevenness on a surface and forms an image, the image forming apparatus including a hardware processor which detects a parameter value regarding a charging amount of a toner that forms the toner image, sets a size of a dot of the toner image according to the detected parameter value, and generates the image formation data of the dot of the set size.

Image forming apparatus and computer readable storage medium storing program

An image forming apparatus includes an image former; a detector; and a hardware processor that: calculates a minimum area for each of the plurality of tones based on image data of the image, calculates a density ratio between the densities before and after the transferring is made for each of the plurality of tones from the densities detected by the detector, extracts as a first area a minimum area of a tone corresponding to a density ratio which switches from less than a predetermined threshold to equal to or more than the threshold, and extracts as a second area a minimum area of a tone the density ratio of which is a maximum, and changes a setting of a dot size of the image so that a size of the second area becomes the same as a size of the first area until the next setting change is performed.

Image forming apparatus and storage medium

An image forming apparatus includes: a cleaning device including a cleaning member that abuts a surface of an image carrier and cleans a surface of the image carrier; a detector that detects a stain generated on the surface of the image carrier in a moving direction of the surface of the image carrier; an adjusting mechanism that adjusts a relative position between the image carrier and the cleaning member in a direction orthogonal to the moving direction; and a hardware processor that controls the relative position between the image carrier and the cleaning member by driving the adjusting mechanism based on information regarding the stain detected by the detector.

Image forming apparatus, method of controlling image forming apparatus, and control program of image forming system

An image forming apparatus includes photoconductors. Electrifiers uniformly electrify surfaces of the photoconductors. A power source applies an electrifying voltage to the electrifiers. A current measurer measures alternating current caused to flow by application of AC voltage by the power source. A controller calculates discharge starting voltage. Environment detectors detect an environment inside of the apparatus. The controller operates the current measurer at each predetermined timing to acquire the discharge starting voltage. When acquiring the discharge starting voltage, the controller changes peak-to-peak voltage at pre-discharge voltage and at post-discharge voltage. The current measurer measures alternating current at measurement points of each of the pre-discharge and post-discharge voltages. The controller calculates a voltage value at an intersection of a first line and a second line. After acquiring the discharge starting voltage, the controller calculates environment-correction discharge starting voltage, and sets electrification voltage based on the calculated voltage.

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Yokohama, Japan

Tomo Kitada