Matsushita Electric Industrial Co., Ltd.

Kyocera Document Solutions Inc.

Kyocera Mita Corporation

Sumitomo Electric Industries, Limited

Koji Fujii

Makoto Ryudo

Yasuhiro Goto

Masahide Yamauchi

Takashi Itoh

Taro Kurahashi

Keisuke Koga

Toru Kawase

Ryota Maeda

Tamotsu Shimizu

Masahiro Nakao

Kensuke Fujihara

Takuro Murata

Mamoru Watanabe

Shota Urase

Dokei Nagayasu

Takashi Shimizu

Masahiro Sato

Minoru Yamada

Hideki Ihara

Tadashi Endo

Yoshitaka Tokoro

Takafumi Nakagawa

Nobuyuki Haji

Hirofumi Hagihara

Shogo Koshida

Mikiji Suzuki

Akane Tokushige

Jing Bo Wang

Makoto Kobayashi

Kozo Yoshimura

Kazushige Hirasawa

Hiroyuki Kuriaki

Kin-ichi Matsuyama

Hideo Goto

Hisahide Ishino

Kenshi Kotani

Kinichi Matsuyama

Yasuhiro Gotou

A document conveying device () includes a sheet feeding tray (), a discharge tray () provided below the sheet feeding tray (), a feeding roller (), a conveying mechanism (), a lifting mechanism () which lifts and lowers the sheet feeding tray (), a discharge tray document sensor () which detects the document on the discharge tray (), and a control part () which controls the lifting mechanism () such that the document placed on the sheet feeding tray () is pressed against the feeding roller () when the conveying mechanism () conveys the document. The control part () controls the lifting mechanism () to lower the sheet feeding tray () by a larger amount in a case where the document is not detected by the discharge tray document sensor () when power is turned on than a case where the document is detected by the discharge tray document sensor ().

Document conveying device

A document feeder includes a lift plate, a pickup roller, a lift motor, a retard roller, and a control unit. In a manual feed mode, the control unit rotates the retard roller to feed a document in a document conveyance direction. Further, the control unit causes the lift motor to start lowering the lift plate while the pickup roller is feeding a document after the rotation of the pickup roller is started.

Document feeder

A controller starts sheet feeding at a primary sheet feeding speed, then momentarily stops a sheet feeding rotary member, and thereafter starts secondary sheet feeding. When the secondary sheet feeding speed equals a first speed, the controller momentarily stops the sheet feeding rotary member such that the leading end of a document sheet stops at a first stop position. When the secondary sheet feeding speed equals a second speed, the controller momentarily stops the sheet feeding rotary member such that the leading end of a document sheet stops at a second stop position. The second stop position is located downstream of the first stop position in the document conveying direction.

Document conveying device and method of controlling a document conveying device

The document feeder includes a lift plate, a pickup roller, a lift motor, a retard roller, and a control unit. In a manual feed mode, the control unit rotates the retard roller to feed a document in a document conveyance direction. Further, the control unit causes the lift motor to start lowering the lift plate while the pickup roller is feeding a document after starting to rotate the pickup roller. When there is a document set on the lift plate at the time when the pickup roller stops, the control unit automatically resumes the feeding in the manual feed mode.

Conveyance modes include a registration mode accompanied with skew correction and a registrationless mode unaccompanied with skew correction. When a jam occurs, the controller interrupts a job, and invokes blank-feed processing starting from a state with all sheets re-set. On invoking blank-feed processing, the controller checks the conveyance mode and recognizes the number of jams. If the conveyance mode is the registration mode and in addition the number of jams has not reached a threshold number of jams, the controller invokes blank-feed processing in the registrationless mode.

Image reading apparatus, image forming apparatus, and method of controlling image reading apparatus

An information processing device includes an acquiring section, an encoding section, and a learning section. The acquiring section acquires log information indicating an operational condition of an electronic device. The encoding section assigns codes uniquely corresponding to the log information to the log information. The learning section applies the codes to a learning model that uses a recurrent neural network to presume an appearance probability of the log information corresponding to the codes.

Information processing device and fault presumption method

A storage control device includes a first storage unit, a write control unit, and a read control unit. The first storage unit includes a plurality of storage areas corresponding to a plurality of addresses. The write control unit performs a write process to sequentially designate one of the plurality of addresses and write data to the storage area corresponding to the designated address, in a predetermined first order. The read control unit performs a read process to sequentially designate one of the plurality of addresses and read data stored in the storage area corresponding to the designated address, in a second order opposite to the first order, starting with the address corresponding to the storage area in which data has been stored immediately near a predetermined start timing after the beginning of execution of the write process, the read process being started at the predetermined start timing.

Storage control device, electronic apparatus, storage medium, and storage control method

An image forming apparatus according to the present disclosure includes a type identification value measurement portion, a determination portion and a speed adjustment portion. The type identification value measurement portion uses, when the print job is executed, a media sensor previously provided in a paper feed cassette to measure a type identification value for a sheet to be transported in the print job. The determination portion determines whether or not an incidence of paper delay corresponding to the measured type identification value for the sheet exceeds a previously set threshold value. The speed adjustment portion lowers, when as a result of the determination, the incidence of paper delay exceeds the threshold value, a transport speed of the sheet as compared with a normal transport speed to execute the print job.

Image forming apparatus and image formation method

A post-processing apparatus according to one aspect of the present disclosure includes: transfer belt; roller position adjustment mechanism; position information acquiring portion; first opposing portion which causes transfer belt to contact first image carrier; second opposing portion capable of being positioned at either contact position that causes transfer belt to contact second image carrier or separation position that causes transfer belt to be separated from second image carrier; movement mechanism portion which moves second opposing portion to contact position or separation position; first control portion which controls roller position adjustment mechanism so that transfer belt will return to target position, based on position information acquired by position information acquiring portion; and second control portion which, in the case where transfer belt does not return into a correction range and is out of correction range, controls movement mechanism portion so as to change position of second opposing portion.

Image forming apparatus including transfer belt

An image forming apparatus includes a belt, a detector, a determining section, a skew correcting section, and a storage section. The belt is stretched around rollers and provided with an index. The detector provides an output value. The determining section determines the index that is passing through the detection region on the basis of a change in the output value, the change exceeding a threshold. The skew correcting section performs control relating to skew correction of inclining the roller and correcting the position of the belt. The storage section stores the threshold having a value between the measured maximum amount of change in the output value when the skew correcting section inclines the roller at the maximum angle and the amount of change in the output value resulting from the index when the index arrives at or passes through the detector.

Image forming apparatus and method of detecting index for use in image forming apparatus

A multifunction peripheral includes: development units of respective colors; an intermediate transfer belt; a transfer roller; a movement mechanism that moves the intermediate transfer belt in a direction of coming in contact with and separating from a magenta development unit and the like; a concentration sensor; a control part that causes the magenta development unit and the transfer roller to form a toner pattern on the intermediate transfer belt; and a determination unit that determines that the pressing state of the magenta development unit and the like and the intermediate transfer belt is normal when the toner pattern concentration detected by the concentration sensor after the toner pattern is transferred to the intermediate transfer belt has reached a predetermined concentration value.

Image forming apparatus

An image forming apparatus has: a photoconductive drum that rotates; a developing roller that carries toner to be charged and to which a first voltage application portion outputting an AC voltage is connected; a contact member that makes contact with the photoconductive drum to remove residual toner; a detection portion for detecting occurrence of electric discharge between the developing roller and the photoconductive drum; and a developing unit that feeds toner to the developing roller, that supports the developing roller opposite the photoconductive drum with a gap secured in between, and that feeds toner to the developing roller with prescribed timing and for a prescribed time during electric discharge detection.

Image forming apparatus and method for controlling same

Upon receiving a request to control developing bias voltage, first and second square-wave signal output units output first and second square-wave signals, respectively. When a rising edge of the first square-wave signal coincides with a rising edge of the second square-wave signal, the rising edge of the second square-wave signal is advanced with respect to the rising edge of the first square-wave signal. When a falling edge of the first square-wave signal coincides with a falling edge of the second square-wave signal, the falling edge of the second square-wave signal is delayed with respect to the falling edge of the first square-wave signal. Subsequently, a voltage-controlling square-wave signal for controlling developing bias voltage is generated based on the first and second square-wave signals.

Developing bias control device capable of properly controlling developing bias voltage

An image forming apparatus that includes: a photoconductive drum; a developing roller that is arranged opposite the photoconductive drum and that carries toner; a detecting portion that detects an occurrence of electrical discharge between the developing roller and the photoconductive drum; a control portion that controls the apparatus, that receives an output of the detecting portion and then recognizes the occurrence of the electrical discharge; a direct voltage applying portion that is connected to the developing roller; and an alternating voltage applying portion is disclosed herein.

Image forming apparatus having a photoconductive drum

A machining apparatus includes a light source () for generating light energy, an optical system () for guiding the generated light energy to a joint position of a workpiece, a table () on which the workpiece is mounted, and a heating device () provided at the table for heating the workpiece. The machining apparatus, a machining method and production equipment using the machining apparatus allow the workpiece to be locally heated fast, which is applicable to soldering or the like.

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Osaka, Japan

Koji Fujii