Konica Minolta, Inc.

Konica Minolta Business Technologies, Inc.

Konica Corporation

Teijin Limited

Tsukishima Kikai Co., Ltd.

Yoshida Industries Co., Ltd.

Hirata Corporation

Satoshi Ogata

Hiroshi Yoshida

Atsushi Takahashi

Kenji Izumiya

Eiji Nishikawa

Tadayuki Ueda

Ryuji Okutomi

Hiroyuki Maruyama

Shinobu Kishi

Toshihiro Motoi

Jun Onishi

Yumiko Higashi

Kazutoshi Yoshimura

Yumiko Izumiya

Masayuki Watanabe

Takashi Nara

Hidenori Mine

Hiroyuki Arai

Youbao Peng

Tadashi Matsudaira

Takeshi Tamada

Kenichi Ozawa

Akihiro Hayashi

Tatsuya Ekinaka

Takehiro Suga

Hirokatsu Kodama

Hiroshi Kishimoto

Masato Nakagomi

Tatsuichirou Kon

Kenji Tamaki

Hiroshi Oyama

Masashi Sugano

Shinpei Kawasaki

Kenzo Teshima

Yume Morita

Susumu Hirose

Katsunori Takahashi

Tetsu Sekine

Fuminori Moro

Yoshiki Katayama

Masatoshi Hitaka

Tsuyoshi Yoneyama

Hirotada Seki

Toshiaki Tanaka

Kenji Yamamoto

Katsuyoshi Tachibana

Akimasa Ishikawa

Hitoshi Asano

Masahito Takano

Masayuki Fukunaga

Yujiro Ishida

Atsushi Yamaguchi

Kiyoto Kojima

Yoshio Kikukawa

Yume Takeda

A recording material conveying device includes: a first conveyor that conveys a recording material supplied from a recording material supply part; a second conveyor that branches from the first conveyor and conveys the recording material without passing through an image forming part; a third conveyor that branches from the first conveyor and conveys the recording material via the image forming part; and a detector that detects a recording material characteristic of the recording material, wherein the recording material whose recording material characteristic has been detected by the detector can be ejected from the second conveyor.

Recording material conveying device and image forming system

A recording material conveyance device that can suppress a decrease in productivity when detecting characteristics of the recording material is provided. A recording material conveyance device includes: a first conveyor that constitutes a conveyance route for a recording material; a second conveyor and a third conveyor that branch off from the first conveyor and constitute the conveyance route for the recording material on a downstream side of a recording material conveyance direction of the first conveyor; a first detector that detects recording material characteristics of the recording material disposed in the first conveyor; a second detector that detects the recording material characteristics disposed in the second conveyor; and a controller that stops detection by the second detector and discharges the recording material that is being detected by the second detector when the first detector detects an abnormality in a detection result of the recording material characteristics.

Recording material conveyance device and image forming system

An image forming apparatus includes a sensor that acquires first and second data groups of paper characteristics by measuring a recording medium; a processor that determines a parameter for controlling at least one of image formation and conveyance of a recording medium on a conveyance path based on the first and second data groups acquired by the sensor; an image former that forms an image on a recording medium conveyed on the conveyance path based on the parameter. The processor compares the first and second paper characteristic data groups, the first paper characteristic data group has been measured at a first time period and the second paper characteristic data group has been measured at a second time period nearer to a present time than the first time period, and the processor controls the image formation based on a the comparison result.

Image forming apparatus, printing method, and computer-readable recording medium that has stored control program

A conveyance device includes a conveyance path on which a medium is carried; a first detector that detects the medium on the conveyance path and generates first property data; and a hardware processor that acquires the first property data and second property data generated by detecting the medium disposed at a position away from the conveyance path.

Conveyance device, image formation apparatus, and image formation system

A recording material conveying device includes: a first conveyor that constitutes a conveyance path of a recording material; a second conveyor that branches from the first conveyor and constitutes a conveyance path of the recording material different from the conveyance path of the first conveyor; and a detector that detects recording material characteristics of the recording material, the detector being arranged in the second conveyor on a downstream side in a conveyance direction of the recording material with respect to a branch portion where the first conveyor and the second conveyor branch.

The present invention is a polymer substrate with a hard coat layer, which is obtained by directly laminating a polymer substrate, a base cured layer and a silicon oxide layer, wherein the base cured layer has a thickness of 1-20 μm and contains 10-90 parts by weight of a polyfunctional acrylate and 90-10 parts by weight of inorganic oxide fine particles and/or a hydrolytic condensation product of a silicon compound or contains a hydrolytic condensation product of an organic silicon compound as a primary component, and the silicon oxide layer satisfies requirement (a1) below at a position 0.04 μm in the thickness direction from the interface between the base cured layer and the silicon oxide layer and satisfies requirement (a3) below at the surface of the silicon oxide layer on the opposite side from the interface,

Polymer substrate with hard coat layer

A paper sheet sensing device includes: a sheet thickness sensor that includes a reference member and a displacement sensor, and senses a sheet thickness of a conveyed recording medium by bringing the reference member into contact with the recording medium and sensing a position of a height of the reference member with the displacement sensor, the position of the height having changed with the recording medium; a first attacher to which the sheet thickness sensor is attached; a conveyor that nips and conveys the recording medium, and is disposed adjacent to the sheet thickness sensor at a predetermined distance equal to or shorter than a length of the recording medium being conveyed, in a conveyance direction of the recording medium; and a displacement preventer that prevents a change in an output of the displacement sensor due to a shift of a relative position of the height of the reference member.

Paper sheet sensing device, paper sheet conveying device, and image forming apparatus

A post-processing device includes: multiple types of post-processing modules that are disposed at predetermined installation positions within the post-processing device and each execute post-processing to an output sheet on which an image is formed; and a controller that (i) detects the post-processing modules at the installation positions and (ii) determines and controls adjustment contents of the post-processing modules based on a detection result.

Post-processing device, image forming device, adjustment method for post-processing device, and recording medium

A physical property detecting device, includes: an insertion part that includes an insertion port through which a sheet is inserted and removed; a first physical property detector that detects a first physical property of the sheet in a non-nipping state; and a second physical property detector that nips the sheet and detects a second physical property of the sheet in a nipping state, wherein the first physical property detector and the second physical property detector are disposed at different positions in an insertion and removal direction of the sheet.

Physical property detecting device and image forming system

A measuring device, includes a physical property value detector and a push contact member that pushes to bring a sheet material in contact with the physical property value detector; and further includes a first processor that stops conveyance of the sheet material, pushes to bring the sheet material in contact with the physical property value detector, and detects a physical property value of the sheet material; a second processor that, after having detected the physical property value, cancels the pushing by the push contact member, separates the sheet material from the physical property value detector, and starts conveyance of the sheet material; and a physical property value specifier that specifies the physical property value on a basis of physical property values of a plurality of positions within a surface of the sheet material detected by executing the first processing and the second processing repeatedly.

Measuring device, image forming apparatus, and measuring method

The present invention provides a polymer substrate with a hardcoat layer exhibiting excellent environmental resistance and wear resistance. A polymer substrate () is 1-20 mm thick and a hardcoat layer () on the surface thereof comprises: an underlayer cured layer () with a thickness of 1-20 &#x3bc;m, and including 10-90 parts by weight of a multifunctional acrylate, and 90-10 parts by weight of inorganic oxide fine particles and/or a silicon compound hydrolytic condensate; and a silicon oxide layer () which is in direct contract with the underlayer cured layer, is formed by PE-CVD with an organosilicon compound as the starter material, and satisfies all of the following conditions (a)-(c): (a) the film thickness of the silicon oxide layer is 3.5-9.0 &#x3bc;m; (b) the maximum indentation depth of the surface of the silicon oxide layer by nanoindentation measurement at a maximum load of 1 mN is 150 nm or less; and (c) the limit compression ratio K of the silicon oxide layer is at most 0.975 in a 3-point bending test of the polymer substrate with a hardcoat layer having been subjected to indentation deformation that causes the surface on which the silicon oxide layer is layered to be indented.

Polymer substrate with hardcoat layer, and manufacturing method for same

Disclosed is image forming apparatus, including a first roller and a second roller that conveys the recording sheet by sandwiching the recording sheet in a fixing process of an image forming; a pressing actuator that presses the first roller and the second roller against each other; an actuating motor that actuates the first roller; a brake that applies a brake force to the second roller; a rotation speed detector that detects a rotation speed of the second roller; and a hardware processor that judges a degradation of each surface roughness of the first roller and the second roller in accordance with the rotation speed of the second roller, which is detected when the first roller is actuated in a situation in which the first roller and the second roller are pressed against each other and when the brake applies a predetermined brake force to the second roller.

Image forming apparatus and lifetime judgment system

An image forming apparatus that controls to cut off exciting currents supplied to a plurality of motors to drive conveyance roller pairs after a leading end of a paper sheet is brought in contact with a registration roller pair, and, when cutting off the exciting currents, cut off the exciting current for at least one of the motors at a different timing from the other motors.

Image forming apparatus

An image forming apparatus includes an image carrier, an image carrier driver which rotates the image carrier, a rotation detector which detects rotation of the image carrier, a rotary member in contact with the image carrier, a rotary member driver which rotates the rotary member, a first controller which controls the rotary member driver, and a second controller. The second controller controls the image carrier driver based on an output of the rotation detector and also controls the image carrier driver in a manner which attenuates a fluctuation component at a specific frequency. When the first controller changes a surface velocity of the rotary member, the second controller controls the image carrier driver in a manner that attenuates a fluctuation component at a specific frequency related to the changed surface velocity of the rotary member.

Image forming apparatus for reducing influence of a rotary member's surface velocity change

An image forming apparatus includes: an image holder that holds a toner image; a transferer that is disposed opposite to the image holder so as to be in contact with the image holder and transfers the toner image from the image holder onto a recording sheet that is going through a contact part where the transferer contacts the image holder, by applying a transfer voltage between the transferer and the image holder; a first power source that applies a voltage of a first polarity to the image holder; and a second power source that applies a voltage of a second polarity, which is reverse to the first polarity, to the transferer.

Image forming apparatus with power supplies for secondary transfer unit

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Hachioji, Japan

Satoshi Ogata