Konica Minolta, Inc.

Konica Minolta Business Technologies, Inc.

Kosuke Masumoto

Kenji Yamamoto

Toshiaki Tanaka

Yasuhiro Ishihara

Shiro Umeda

Satoshi Chikazawa

Katsunori Takahashi

Eiji Nishikawa

Toshihiro Motoi

Akifumi Isobe

Mineo Yamamoto

Takashi Hasebe

Yuji Kobayashi

Hiroshi Yamaguchi

Akihiro Hayashi

Harumitsu Fujimori

Shigeru Yamazaki

Isao Watanabe

There are provided an image reader, a noise canceller, and an image processor. The image reader reads an image, outputs image data, and generates a horizontal synchronization signal. The noise canceller generates a noise-canceling signal to eliminate a noise entering a horizontal synchronization signal and eliminates a noise from a horizontal synchronization signal. The image processor captures effective image data out of image data transferred from the image reader correspondingly to a timing when the horizontal synchronization signal changes from a first signal level to a second signal level. The noise canceller generates a noise-canceling signal from a noise detection signal or image data generated in the image reader.

Image processing apparatus, image reading apparatus, and image forming apparatus

An image forming apparatus causes an image forming portion to perform image forming processing based on a security job issued by an output-permitted user, in a case where an outsider-use-possibility calculated by an outsider-use-possibility calculation portion becomes equal to or smaller than a predetermined threshold value on the basis of information of a movement trajectory of the output-permitted user and also the output-permitted user has been detected in an output-process-start area. Accordingly, it is possible to enhance the convenience for the output-permitted user while ensuring the security of the output product based on the security job issued by the user.

Image forming apparatus with security feature, computer-readable recording medium storing program, and image forming system

When other user is using an image forming apparatus before an output-permitted user having issued a security job reaches the image forming apparatus, security is lowered and also it takes some time until processing of security job is completed. The image forming apparatus notifies the output-permitted user of information indicating that other user is using the image forming apparatus in a case where the other user present near the image forming apparatus (own apparatus) is using the image forming apparatus. With this arrangement, the output-permitted user can know whether or not the other user is using the image forming apparatus before the output-permitted user reaches the image forming apparatus.

Image forming apparatus, notification method, computer-readable recording medium storing program, and image forming system

A nonvolatile memory control device performs data reading/writing control on partitions of a rewritable nonvolatile semiconductor memory. The device includes an erase cycle counting unit, a read cycle counting unit, a data reading/writing unit and a control unit. The erase cycle counting unit counts the number of erase cycles in total per partition. The read cycle counting unit counts the number of read cycles that same data is read per partition. When the number of erase cycles of a first partition is equal to or larger than a predetermined number of erase cycles, and a second partition having a smaller number of erase cycles and a larger number of read cycles than the first partition is present, the control unit controls the data reading/writing unit to exchange data in the first partition and data in the second partition.

Nonvolatile memory control device, nonvolatile memory control method and computer readable storage medium

An image display and photographing system includes a display device configured to display a target image on a surface; a photographing device configured to photograph the surface; a first detector configured to detect that an object moves away from a space between the surface and the photographing device; a second detector configured to detect that, after the first detector detects that the object moves away from the space, the surface is touched at a predetermined position; a third detector configured to detect that, after the second detector detects that the surface is touched at the predetermined position, the object moves away from the space; and a photographing control portion configured to control, after the third detector detects that the object moves away from the space, the photographing device to photograph the surface.

Image display and photographing system, photographing device, display device, image display and photographing method, and computer-readable storage medium for computer program

An image forming apparatus includes: a sheet feeding unit configured to feed a plurality of sheets to an image forming unit one by one; the image forming unit configured to form a toner image based on image data; a fixing unit configured to fix the toner image formed on each sheet by the image forming unit with a fixing member, the fixing unit including the fixing member configured to be brought into contact with each sheet supplied from the image forming unit and heat each sheet; a measuring unit configured to measure a temperature of the fixing member; and a control unit configured to instruct the fixing unit to start and stop a temperature increasing operation, and provide the image data to the image forming unit, wherein the control unit includes: a temperature drop rate calculating unit; a temperature rise rate predicting unit; and an instructing unit.

Image forming apparatus with fixing member temperature control

An image forming apparatus includes an image forming section to form a toner image and transfer the toner image to a recording medium and a fixing section to heat the recording medium transferred with the toner image and further an image analyzing section to extract a density value or a size value of an imaging object included in an image, and a temperature determining section to determine a minimum fixing temperature based on the density value or size value of the imaging object included in a page image. The temperature determining section determines the minimum fixing temperature to be lower when a highest one of the density values is lower than when the highest value is higher or determines the minimum fixing temperature to be lower when a largest one of the size values is smaller than when the largest size value is larger.

Image forming apparatus, image forming method, and non-transitory computer readable medium storing control program

An image forming apparatus forming toner images sequentially on recording sheets transported at intervals, and thermally fixing the toner images by passing the recording sheets through a fixing position on a heating roller. The target fixing temperature is determined according to information of an image on each page. When a first fixing temperature for a given page is higher than a second fixing temperature for the succeeding page and the difference therebetween is greater than a predefined value, part or all of a first period, during which the thermal fixing operation for the given page is performed, and a second period, which corresponds to an interval between the two pages, are reserved for raising the surface temperature by the difference, and temperature control is performed during the reserved periods such that the surface temperature reaches the second temperature before the thermal fixing operation for the succeeding page starts.

Image forming apparatus and fixing temperature control unit

An image forming apparatus comprises: a piezoelectric sensor that produces an variable output signal depending on the amount of infrared energy; a human body detecting device having a lens that forms a detecting area serving for detecting if the person enters; a peak detector that detects a peak of an output signal produced when the person enters the detecting area; an offset voltage judgment portion that judges if the output signal falls to the offset voltage after the peak; a moving direction judgment portion that judges the direction in which the person moves in the detecting area; and a mode controller that switches the power supply mode to a first mode if the power supply mode is found to be a second mode requiring less power than the first mode while the moving direction judgment portion judges that the person moves toward the image forming apparatus.

Image forming apparatus, power control method, and recording medium

A human body sensing device comprises: an infrared sensor which detects a human body; a rotatable group of lenses having a plurality of lenses arranged around the sensor, the lenses being configured to: generate unit sensing zones defined by a sensing distance extending radially outwardly from the group and a small width extending in a rotation direction of the group; and form a plurality of alternating layers of a regional sensing zone including one or more than one of the unit sensing zones and a non-sensing zone not including any of the unit sensing zones, in a rotation direction of the group; a rotary drive which rotates the group; a rotation position sensor which detects a rotation position of the group; and a recognizer which recognizes the location and/or movement of a human body based on the output level indicated by the infrared sensor and the rotation position.

Human body sensing device and image forming apparatus having the same

A human body sensing device being mounted on an object comprises: a first and second sensor being mounted on a vertical plane of the object and each having a pair of a positive and negative electrode; and a lens covering over the first and second sensors, wherein: the lens forms a sensing block in a sensing area constituting a plane perpendicular to the vertical plane, the sensing block including the positive and negative electrodes of the first sensor, and the positive and negative electrodes of the second sensor; either a first virtual line or an extended part thereof and either a second virtual line or an extended part thereof have a point of intersection in the sensing area; and the first and second virtual lines are symmetric with respect to a line perpendicular to the vertical plane of the object and passing through the point of intersection.

Human body sensing device and image processing apparatus having the same

In an image forming apparatus that forms a color image by transferring toner images for respective colors formed on plural rotary photoreceptor drums onto a sheet through an intermediate transfer member, when a controller judges that magnification deviation is generated in a main-scanning direction in superposition of the toner images for respective colors, the controller forms a first color registration deviation detecting mark for detecting at least an amount of deviation in the main scanning direction on the intermediate transfer member, and when the controller judges that the magnification deviation is not generated in the main-scanning direction in the superposition of toner images for respective colors, the controller forms a second color registration deviation detecting mark for detecting only an amount of deviation in a sub scanning direction perpendicular to the main-scanning direction on the intermediate transfer member.

Image forming apparatus with temperature-based color control

Disclosed is an image forming apparatus, which makes it possible to appropriately conduct a controlling operation for eliminating the velocity fluctuation of the photoreceptor drum without generating any malfunction. The apparatus includes a photoreceptor member driven by a motor and a control section that is provided with a feed forward controlling section that stores parameters derived from driving errors for one revolution of the photoreceptor member to create a reverse-phase instruction value based on the parameters and a feedback controlling section that controls a velocity of the photoreceptor member, so as to keep the velocity of the photoreceptor member constant. During an initial operating time, the control section deactivates the feed forward controlling section, while only activates the feedback controlling section to drive the photoreceptor member so as to measure a driving toque of the driving motor, and selects a parameter from the parameters, corresponding to the driving toque measured.

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Hachioji, Japan

Kosuke Masumoto