Fuji Xerox Co., Ltd.

Tomoshi Hara

Masahiko Kubo

Nobukazu Takahashi

Kenichi Kobayashi

Hideki Kimura

Shigeru Arai

Kazuyuki Tsukamoto

Yutaka Kiuchi

Tsutomu Udaka

Ryuichiro Maeyama

Yukiko Miyakoshi

Koji Morofuji

Shinichi Tai

Toshihiro Matsumoto

Masao Ito

Kenji Mori

Kenji Hara

Takashi Ochi

Junichi Ichikawa

Shinichiro Fujimori

Shinsuke Sugi

Kenji Ogi

Masaomi Sakamoto

Yoshifumi Takebe

Shuichi Sugimoto

An image forming system includes a first image forming apparatus, a second image forming apparatus, a determining unit, and a display unit. The first image forming apparatus includes a first image forming unit that forms an image with a first developer of a process color. The second image forming apparatus includes a second image forming unit that includes a second developer and that forms an image with the second developer. The second developer has characteristics different from characteristics of the first developer on a medium. The determining unit determines, on the basis of image formation conditions designated by a user, a printing order in which an image formed with the first developer and an image formed with a second developer are printed on one medium, and determines a sequence in which the image forming apparatuses perform image formation on the basis of the determined printing order. The display unit displays the sequence determined by the determining unit.

Image forming system for reducing wrong printing order

An image forming system includes a first image forming apparatus that includes a first imaging section used to form an image using a colored first developer, a second image forming apparatus that includes a second imaging section used to form the image using a second developer, which a color of the first developer is capable of penetrating, in a case of being laminated on the first developer on a medium, and a third imaging section used to form the image using a third developer which is capable of shading the color of the first developer in a case of being laminated on the first developer on the medium, and an information processing section that transmits information of a print image to the first image forming apparatus and the second image forming apparatus, the information processing section transmitting the information of the print image to the respective imaging sections such that, with respect to a visual recognition direction of the image on the medium, the image formed using the second developer is laminated on a front side in the visual recognition direction rather than the image formed using the third developer and the image formed using the first developer.

Image forming system for reducing error of image forming sequence

Provided is an image processing apparatus including an acquisition unit that acquires first image information which is image information configured of plural pixels and which includes density information for each pixel, a first correction unit that corrects pixel density based on the first image information, a storage unit that stores image information obtained after the first correction unit performs the correction as second image information, a second correction unit that performs a reverse correction so as to cancel the correction by the first correction unit based on density of a pixel of the second image information, a display unit that displays an image on a display section based on third image information which is image information obtained after the second correction unit performs the reverse correction, and a transmission unit that transmits the second image information to an image forming apparatus.

Image processing apparatus, image forming system, and image forming apparatus for correcting pixel density

An image processing apparatus includes an acquisition unit, a first detection unit, a first determination unit, a second detection unit, a second determination unit, a correction unit, and a transmitting unit. The acquisition unit acquires image information having multiple pixels. The first detection unit detects sub-scanning-direction boundary pixels in accordance with the image information. The first determination unit determines whether or not a development-related defect occurs in a preset number of pixels downstream of the sub-scanning-direction boundary pixels in the sub-scanning direction. The second detection unit detects an end pixel in the main scanning direction. The second determination unit determines whether or not each of sub-scanning-direction boundary pixels arranged in the main scanning direction is close to the end pixel in the main scanning direction. The correction unit corrects the image information. The transmitting unit transmits the image information corrected by the correction unit to an image forming apparatus.

Image processing apparatus, image forming system, image forming apparatus, and image processing method for correcting density of image information

An image forming apparatus includes a measuring unit, an adjustment image forming unit, a density value calculating unit, and a transfer parameter determining unit. The measuring unit measures colors of an image formed on a recording medium. The adjustment image forming unit forms an adjustment image including a combination color which is produced by superimposing colorants of two or more component colors. The density value calculating unit calculates, in accordance with a measurement result obtained by measuring the combination color included in the adjustment image by the measuring unit, a density value of a component color of a colorant that is formed in an uppermost layer on the recording medium among the two or more component colors. The transfer parameter determining unit determines a value of a transfer parameter in accordance with the calculated density value, the transfer parameter defining an operation condition used for performing transfer.

Image forming apparatus determining transfer parameter using color measurement result, image forming method, and non-transitory computer readable medium

An image forming apparatus is provided and includes: an image forming unit that forms an image on an image carrier with a transparent material and a coloring material; a controller that controls an order of an image forming with the transparent material and an image forming with the coloring material to be different between in an image portion and in a non-image portion in an image forming region on the image carrier; and a transferring unit that transfers the image formed on the image carrier onto a recording medium.

Image forming apparatus and image forming method

An image gloss control apparatus that includes a first control component and a second control component is provided. The first control component controls an image forming/fixing component, which forms an image on a recording medium using a colored image formation material and fixes the image, so that a first image is formed in a high gloss area having a high gloss level on the recording medium or an area including the high gloss area on the recording medium and is fixed. The second control component that controls the image forming/fixing component, so that a second image having a density lower than a density of the first image is formed in a low gloss area having a gloss level lower than the gloss level of the high gloss area on the recording medium where the first image is formed or the low gloss area on the first image and is fixed.

Image gloss control apparatus, image forming apparatus, image forming system, and storage medium storing program

An image processing device that outputs a raster image to an image forming unit that forms an image at a first resolution based on the raster image, generates a raster image at a second resolution that is lower than the first resolution; inspects pixels of the generated raster image having the second resolution, and if there is a pixel group including a pixel and pixels surrounding the pixel that has a layout pattern identical to a predetermined layout pattern, replaces the pixel with a predetermined raster image having the first resolution; inspects pixels of the raster image having the first resolution, and if there is a pixel group including a pixel and pixels surrounding the pixel that satisfies a predetermined condition, replaces the pixel with a pixel of a different color; and outputs the raster image having the first resolution subjected to line-thinning to the image forming unit.

Method for performing pattern matching and line thinning on an image

A thickness variation detector of a photoconductor includes: a current detection unit that detects a value of current being used for charging a surface of the photoconductor in a state in which a charging unit is in contact with a surface of the photoconductor; and a thickness variation detection unit that detects a thickness variation along a rotation direction of the photoconductor based on the value of current.

Thickness variation detector of photoconductor, image formation unit, image formation apparatus and method for thickness variation of photoconductor

An image forming device has an imaging unit including: a rotating body; an exposure unit forming an electrostatic latent image on the rotating body; a developing unit developing the latent image using developer to form an image; and a transfer unit transferring the image to a recording medium, a memory storing data on correspondence between first image data, second image data and a first correction amount, the first image data representing a first latent image formed by a first turn of the rotating body, the second image data representing a second latent image formed by a second turn of the rotating body, and the first correction amount used for correcting the second image data so that density of the image on the recording medium closer to density of the second latent image; a correction amount determining unit determining the first correction amount corresponding to the first and second image data based on the data stored in the memory; and a correcting unit correcting the second image data based on the first correction amount.

Image forming device, image processing device, image forming method, computer readable medium, and computer data signal

An image forming apparatus having an image forming part that forms an image on a recording medium measures, downstream of the image forming part in a transport path of the recording medium, speckles on the recording medium, and generates measured speckle data that represents speckles measured; stores the generated measured speckle data in a memory part, further measures, upstream of the image forming part in a transport path of a recording medium, the speckles of the recording medium; determines whether speckle data representing speckles analogous to speckles measured upstream of the image forming part is stored in the memory part, and, in the case where the decision result is affirmative, recognizes that the recording medium for which the speckles have been measured is a recording medium on which an image has been formed on it previous to having speckles measured upstream of the image forming part.

Image forming apparatus

An image forming apparatus with an image forming part and a fixing part for fixing images on a recording medium measures, downstream of the fixing part in a transport path, speckles on a recording medium, and generates measured speckle data representing the measured speckles; stores measured speckle data with standard speckle data representing speckles on a recording medium that has not undergone a fixing process; further measures, upstream of the image forming part, measures speckles on a recording medium; and when the stored standard speckle data is the most analogous to speckles measured for the second time, applies corrections in order to compensate for the lengthening of the recording medium by a fixing process to document images formed thereon, and when the stored measured speckle data is the most analogous to speckles measured for the second time, does not perform the corrections in order to compensate for the lengthening.

A color image reading device having a function of correcting a variation in the color separation characteristic for each device. In the color image reading device, a standard document is read to detect variations in the color separation characteristic, and on the basis of the detected values, the color separation characteristic is corrected by a color correction processing section provided at a stage after the color conversion unit. Thus, even if the color separation characteristic has a slight variation for each device, the variation can be corrected easily by reading the standard document as occasion requires.

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Kanagawa, Japan

Tomoshi Hara