Kyocera Document Solutions Inc.

Kyocera Documents Solutions Inc.

Takayuki Mashimo

Toshiaki Mutsuo

Hiroki Tanaka

Nobuto Fujita

Takashi Harada

Toshihiko Tanaka

Akira Shimada

Masaaki Nishihara

Hikaru Miyaji

Koji Kuroda

Kenji Kiyose

Yukio Shibata

Sumio Yamada

Ryota Seike

Plural write control units independently control plural print mechanisms corresponding to plural toner colors. A controller stores a setting value for each page into a first memory area. Plural second memory areas respectively correspond to the plural write control units. Further, one write control unit among them transfers the setting value from the first memory area to the second memory area of this write control unit, and applies the setting value stored in the second memory area and causes the corresponding print mechanism to print a page image. Another write control unit among them transfers the setting value to the second memory area of this write control unit from the second memory area of another write control unit among them, and applies the setting value stored in the second memory area and causes the corresponding print mechanism to print a page image.

Image forming apparatus

An optical scanning device includes a light source, a deflector, a random number generator, a selection part, a random number assignment part and an exposure control part. The light source includes a plurality of light emitting parts arranged in a predetermined direction at fixed intervals in a sub-scanning direction. The random number assignment part is configured to assign a random number sequence to each light emitting part constituting a set of target light emitting parts as an index for specifying a timing at which a light emitting time of the set of target light emitting parts is set to a correction value different from a reference value and to update the assignment of the random number sequence at a random number update period. The random number update period coincides with a scanning period of each light emitting part constituting the set of target light emitting parts.

Optical scanning device and image forming apparatus

An image forming apparatus includes an image processing device, an image forming device, an operating device, a vital sensor, and a controller. The image processing device corrects an image. The image forming device performs an image formation of forming the image on a recording sheet. The operating device is operable by a user and through which an instruction to start the image formation by the image forming device is inputted. The vital sensor is provided at the operating device and detects a blood oxygen level of the user who is operating the operating device. The controller, when the instruction to start the image formation is inputted through the operating device, causes the image processing device to correct the image in accordance with the blood oxygen level of the user detected by the vital sensor and causes the image forming device to form a corrected image on the recording sheet.

Image forming apparatus that corrects image in accordance with blood oxygen level

A display control device includes a display section, a first receiving section, a second receiving section, and a performing section. The display section displays an object. The first receiving section receives non-voice input specifying a first operation on the object. The second receiving section receives voice input specifying a second operation on the object. The performing section performs, on the object, a complex operation specified by the non-voice input and the voice input.

Display control device, display control method, and storage medium

A base toner amount determining unit is configured to determine a base toner amount without taking edge effect into account, the base toner amount corresponding to a pixel value of image data for which gradation correction has not been performed. A laser profile applying unit is configured to perform for the base toner amount a first spatial filter process corresponding to a laser profile of an exposure device. An edge emphasis amount determining unit is configured to perform a second spatial filter process for the base toner amount before the first spatial filter process or after the first spatial filter process and thereby determine an edge emphasis amount corresponding to the edge effect. A toner counter is configured to count as a toner consumption amount a sum of the base toner amount after the first spatial filter process and the edge emphasis amount.

Image forming apparatus and toner amount calculating method

A base toner amount is determined without taking edge effect into account, and corresponds to a pixel value of image data for which gradation correction has not been performed. For the base toner amount, a first spatial filter process is performed corresponding to a laser profile of the exposure device. A second spatial filter process is performed for the base toner amount before or after the first spatial filter process and thereby an edge emphasis amount is determined corresponding to the edge effect. A limiter processing unit limits the edge emphasis amount to an uppermost value or less, and the uppermost value corresponds to the base toner amount after the first spatial filter process. A toner counter counts as a toner consumption amount a sum of the base toner amount after the first spatial filter process and the edge emphasis amount.

An exposure device irradiates a photoconductor with light on the basis of an exposure signal and thereby forms an electrostatic latent image. A toner amount calculating unit (a) determines a distribution pattern of the electrostatic latent image on the basis of the exposure signal, (b) determines an electric field variation level of a target pixel, (c) determines an electric field intensity of the target pixel on the basis of a value of the target pixel in the distribution pattern and the electric field variation level, and (d) determines a toner consumption amount corresponding to the electric field intensity. Further, using spatial filters independently of each other in a primary scanning direction and in a secondary scanning direction, the toner amount calculating unit determines the electric field variation level on the basis of (a) the distribution pattern or (b) the exposure signal.

An image forming system includes a concealment word registration unit, an ID information acquisition unit, a concealment word managing unit, and an image forming unit. The concealment word registration unit registers a concealment word associating with a user. The ID information acquisition unit obtains creator ID information and execution person ID information from a print job, the creator ID information identifies a user as a creator of a document file, the execution person ID information identifies a user as an execution person of the image formation process. The concealment word managing unit uses the concealment words to determine a concealment region. The concealment words include the concealment word associated with the user identified by the creator ID information and the concealment word associated with the user identified by the execution person ID information. The image forming unit executes a masking process that makes the concealment region illegible.

Image forming system and image forming method that execute masking process on concealment region, and recording medium therefor

A sheet conveyance device includes a shape detecting portion, and a switch control portion. The shape detecting portion detects a shape of a sheet at a detection position located between a first conveyance member and an image forming position in a sheet conveyance path. The switch control portion, when the first conveyance member is determined to be in an accelerated state where it is accelerated from a stopped state to a driven state, switches an detection interval at which the shape of the sheet is detected by the shape detecting portion, to a first interval that corresponds to a rotation speed of the first conveyance member, and when the first conveyance member is determined to be in a decelerated state where it is decelerated from the driven state to the stopped state, switches the detection interval to a predetermined second interval.

Sheet conveyance device capable of detecting shape of sheet, image forming apparatus, sheet shape detecting method

An edge emphasis amount determining unit performs a spatial filter process and thereby determines an edge emphasis amount corresponding to edge effect. A first toner counter (a) counts a toner consumption amount including the edge emphasis amount for a non-block-edge pixel in a block as a unit of image processing, and (b) counts a toner consumption amount not including the edge emphasis amount for a block edge pixel in the block. A second toner counter counts a toner consumption amount not including the edge emphasis amount for the non-block-edge pixel and the block edge pixel. A toner consumption amount calculating unit calculates a toner consumption amount of the block on the basis of a difference between a toner counting value of the first toner counter and a toner counting value of the second toner counter.

A base toner amount is determined without taking edge effect into account. The base toner amount corresponds to a pixel value of image data for which gradation correction has not been performed. For the base toner amount, a first spatial filter process is performed corresponding to a laser profile of the exposure device. A second spatial filter process is performed for the base toner amount before or after the first spatial filter process and thereby an edge emphasis amount is determined corresponding to the edge effect. A toner counter counts as a toner consumption amount a sum of the base toner amount after the first spatial filter process and the edge emphasis amount. Further, a gain control unit multiplies the edge emphasis amount by a coefficient corresponding to the base toner amount after the first spatial filter process and thereby controls a gain of the edge emphasis amount.

An exposure device irradiates a photoconductor with light on the basis of an exposure signal and thereby forms an electrostatic latent image. A toner amount calculating unit (a) determines a distribution pattern of the electrostatic latent image on the basis of the exposure signal, (b) determines an electric field variation level of a target pixel, (c) determines an electric field intensity of the target pixel on the basis of a value of the target pixel in the distribution pattern and the electric field variation level, and (d) determines a toner consumption amount corresponding to the electric field intensity. Further, the toner amount calculating unit limits the electric field variation level to an uppermost value or less, the uppermost value corresponding to a value of the target pixel in the distribution pattern of the electrostatic latent image.

A sheet conveyance device includes a shape detecting portion, and a switch control portion. The shape detecting portion detects a shape of a sheet at a detection position between a first conveyance member and a second conveyance member. The switch control portion, when a front end of the sheet has passed a arrangement position at which the first conveyance member is arranged, switches an detection interval at which the shape of the sheet is detected by the shape detecting portion, to a first interval that corresponds to a rotation speed of the first conveyance member, and when a rear end of the sheet has passed the arrangement position, switches the detection interval to a second interval that corresponds to the rotation speed of the second conveyance member.

Provided is a choice question creating apparatus creating a choice question on a question document. It includes an image reading part reading a question document to acquire image data; a character recognizing part executing recognition on image data, acquiring document text data; a sentence extraction part extracting from document text data; a correct answer identifying part identifying word as correct answer from sentence; a word dictionary database in which words are classified into categories and registered; a choice creating part selecting specific number of words from category in word dictionary database including correct answer, and arranges words selected, and word as correct answer identified by correct answer identifying part to create choice group; a question sentence transforming part deleting correct answer from sentence to transform it into question sentence, and a layout part arranging transformed question sentence, and created choice group to create a choice question.

Choice question creating apparatus

A security printing system includes an image forming apparatus and a mobile communication device. The image forming apparatus includes a biological information input circuit, a printed matter storing unit, at least one sheet discharge tray, an image forming circuit, and a control circuit. The biological information input circuit inputs biological information. The biological information is preliminary registered as registered biological information with the mobile communication device. The control circuit creates a printed matter in response to a match between the biological information and the registered biological information. The biological information is input by the biological information input circuit. The registered biological information is obtained by the short range wireless communications. The control circuit discharges the created printed matter to any of the at least one sheet discharge tray when the short range wireless communications are in a predetermined predefined state.

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Osaka, Japan

Takayuki Mashimo