Abstract: An image forming apparatus that highly precisely suppresses misregistration of an image relative to a sheet due to sub-scanning skew and a control method are provided. The image forming apparatus includes: displacement rollers including at least a pair of rollers conveying a sheet that is being conveyed, toward a transfer section; a detection section that detects a position of a side end part of the sheet; and a hardware processor that performs processing for displacing the displacement rollers based on displacement control information and correcting the displacement control information for next and subsequent sheets based on a detection result of detection by the detection section after the displacement of the displacement rollers.

Abstract: An image forming apparatus includes a transfer unit, a sway roller pair constituted of a pair of rollers, a hardware processor and an image reader. The transfer unit transfers an image onto paper being conveyed to an image transfer position where the transfer unit transfers the image onto the paper. The sway roller pair conveys the paper to the transfer unit, the paper being conveyed to the sway roller pair. The hardware processor makes the sway roller pair sway based on predetermined sway control information. The image reader reads the paper onto which the image has been transferred by the paper having passed through the transfer unit. The hardware processor corrects the sway control information based on a reading result of the reading performed by the image reader.

Abstract: The image forming apparatus includes a transfer section that transfers an image to a sheet; a sheet conveying member that is provided on an upstream side of the transfer section in a conveying direction of the sheet and that conveys the sheet; and a hardware processor that controls displacement of the sheet conveying member such that the sheet is displaced in a width direction of the sheet. The hardware processor causes a detector that detects an edge of the sheet in the width direction to detect the edge of the sheet after displacement of the sheet conveying member has been started, and causes the displacement to be terminated on the basis of the detected result such that the edge of the sheet reaches a target position.

Abstract: An image forming apparatus includes a transfer section that transfers an image onto a sheet, a sheet conveying member that is provided upstream of the transfer section in a sheet conveyance direction and conveys the sheet, and a hardware processor that controls displacement of the sheet conveying member in such a way that the sheet is displaced along the width direction of the sheet. The hardware processor performs first displacement control in which the sheet conveying member is displaced in a direction which is specified in advance with respect to the sheet and in which an edge of the sheet in the width direction is directed toward a target position and second displacement control in which the sheet conveying member is displaced in the direction opposite the direction of the first displacement.

Abstract: An analysis system of an embodiment includes a terminal and a server. The terminal includes a first processor configured to collect a log of an operation of the terminal, or a log of sensing information that is acquirable in the terminal and create coded information obtained by encoding the log, or an inverted index indicating an appearance position in the log of a word included in the log that uses the coded information. The server includes a second processor configured to acquire the coded information or the inverted index from the terminal, and when the coded information is acquired, create the inverted index, and analyze information related to the terminal, using the inverted index.

Abstract: When compressing an arrangement of fixed-length records in a columnar direction, a data compression device carries out data compression aligned with the performance of a data decompression device by computing a number of rows processed with one columnar compression from the performance on the decompression device side, such as the memory cache capacity of the decompression device or the capacity of a primary storage device which may be used by an application, and the size of one record. Thus, while improving compression ratios of large volumes of data, including an alignment of a plurality of fixed-length records, decompression performance is improved.

Abstract: An image forming apparatus includes: a transfer section that transfers an image to a sheet; a sheet conveyance member that is provided on an upstream of the transfer section in a sheet conveyance direction and that conveys the sheet; and a hardware processor that controls the sheet conveyance member to displace the sheet, wherein a preset value defining a displacement condition of the sheet conveyance member for providing a correct position of the image on the sheet is set.

Abstract: An image forming apparatus includes: a transferer that forms a transfer nip for transferring an image on a paper sheet; a conveyance member that is disposed upstream from the transfer nip in a conveyance direction of the paper sheet; and a hardware processor that increases a conveyance speed of the paper sheet in the conveyance member relative to a conveyance speed of the paper sheet in the transferer and controls conveyance of the paper sheet to loosen the paper sheet between the transfer nip and the conveyance member, wherein the hardware processor changes a conveyance speed of the paper sheet in the conveyance member in accordance with a conveyance length of the paper sheet in the conveyance member.

Abstract: An image forming apparatus includes: a transferer that forms a transfer nip for transferring an image to a sheet; a conveyance roller pair disposed on an upstream side relative to the transfer nip in a conveyance direction of the sheet; and a hardware processor that controls the conveyance roller pair such that the sheet conveyed to a conveyance nip formed by the conveyance roller pair is conveyed with a predetermined nip pressure so as to cause slack in the sheet between the transfer nip and the conveyance nip in which the hardware processor controls the conveyance roller pair so as to reduce the nip pressure at the conveyance nip in accordance with an increase in a conveyance amount of the sheet at the conveyance nip.

Abstract: The objective of the present invention is to provide to a method for easily producing high-performance porous cellulose beads having high mechanical strength. Also, the objective of the present invention is to provide an adsorbent produced from the high-performance porous cellulose beads. According to the present invention, high-performance porous cellulose beads can be easily produced from porous cellulose beads, and an adsorbent having high strength and high adsorption amount can be easily produced from the high-performance porous cellulose beads.

Abstract: An image forming apparatus includes: a pair of first rollers configured to nip a paper sheet in a reference position and convey the paper sheet, the pair of first rollers being pressed against each other; and a control unit configured to control operation of the pair of first rollers to correct a positional deviation in a width direction of the paper sheet, by moving the pair of first rollers from the reference position in the width direction perpendicular to a direction of conveyance of the paper sheet, wherein, the control unit controls the operation of the pair of rollers, to complete a series of operations for the pair of rollers to separate from each other, to return to the reference position, and to be again pressed against each other, before a bottom edge of the paper sheet nipped by the pair of rollers passes through the pair of rollers.

Abstract: A sheet feeding apparatus, including: a pair of sheet feeding rollers; a pair of conveyance rollers; and a controller, wherein when a first condition regarding a sheet position is fulfilled in the sheet feeding, the controller makes one of the first conveyance roller and the second conveyance roller move in a direction opposite to the other conveyance roller and when a second condition regarding the sheet position is fulfilled in the sheet feeding, the controller makes the one conveyance roller move in a direction toward the other conveyance roller.

Abstract: A sheet feeder device includes: a pickup roller that separates paper sheets placed on a manual feed tray from one another, and transfers a paper sheet; a pair of sheet feed rollers that include an upper feed roller and a lower feed roller, form a sheet nip portion when the upper feed roller and the lower feed roller are pressed against each other, and transfer the paper sheet transferred from the pickup roller; a top edge vibrator that vibrates a top edge of the paper sheet, the top edge vibrator being located on an upstream side of the pair of sheet feed rollers; and a hardware processor that controls sheet feeding of the paper sheets placed on the manual feed tray, wherein, when a predetermined condition is satisfied in the sheet feeding, the hardware processor controls the top edge vibrator, to vibrate the top edge of the paper sheet.

Abstract: A developing device includes a developing roller, a conveyor roller, a developer stirring unit and a development bias applying unit. The developing roller is arranged to face a photoconductive drum at a predetermined developing position and supplies the toner. The conveyor roller is arranged to face the developing roller at a predetermined facing position and supplies the developer to the developing roller. The development bias applying unit applies development biases to the first sleeve of the developing roller and the second sleeve of the conveyor roller during a developing operation of developing the electrostatic latent image on the photoconductive drum with the toner. The development bias applying unit applies the development biases such that a shifting electric field to move the toner on the first sleeve of the developing roller toward the second sleeve of the conveyor roller is formed at the facing position during the developing operation.

Abstract: A developing device includes a developing roller, a conveyor roller, a developer stirring unit and a development bias applying unit. The developing roller is arranged to face a photoconductive drum at a predetermined developing position and supplies the toner. The conveyor roller is arranged to face the developing roller at a predetermined facing position and supplies the developer to the developing roller. The development bias applying unit applies development biases to the first sleeve of the developing roller and the second sleeve of the conveyor roller during a developing operation of developing the electrostatic latent image on the photoconductive drum with the toner. The development bias applying unit applies the development biases such that a shifting electric field to move the toner on the first sleeve of the developing roller toward the second sleeve of the conveyor roller is formed at the facing position during the developing operation.

Abstract: A polylactic acid composition including polylactic acid and an ethylene resin, characterized in that the ethylene resin is selected so that a melt flow rate ratio (RMF), defined by the following equation (1): RMF=APLA/BPE (1) where APLA represents the melt flow rate of the polylactic acid measured at 210° C. and 2.16 kg, and BPE represents the melt flow rate of the ethylene resin measured at 190° C. and 2.16 kg, in a range of 0.5 to 10 is satisfied. Also disclosed is a stretch-molded bottle formed using the polylactic acid composition. The polylactic acid composition is preferably used in molding a container particularly improved in alkali resistance and environmental stress crack resistance.

Abstract: An image forming apparatus includes: a pair of first rollers configured to nip a paper sheet in a reference position and convey the paper sheet, the pair of first rollers being pressed against each other; and a control unit configured to control operation of the pair of first rollers to correct a positional deviation in a width direction of the paper sheet, by moving the pair of first rollers from the reference position in the width direction perpendicular to a direction of conveyance of the paper sheet, wherein, the control unit controls the operation of the pair of rollers, to complete a series of operations for the pair of rollers to separate from each other, to return to the reference position, and to be again pressed against each other, before a bottom edge of the paper sheet nipped by the pair of rollers passes through the pair of rollers.

Abstract: An image forming apparatus includes: an image forming section that electrophotographically forms an image on a sheet; and a sheet feeding path including a first sheet feeding path that conveys a sheet to the image forming section, and a second sheet feeding path provided continuously with the first sheet feeding path. Unjamming is allowed to be performed by separating the apparatus at a boundary between the first sheet feeding path and the second sheet feeding path, and by pulling out the first sheet feeding path. The apparatus further includes: a jam detection section that detects an occurrence of a jam in the sheet feeding path; and a jam clearing section that determines a procedure for unjamming in accordance with a state of a sheet on the sheet feeding path when a jam occurs, and the jam clearing section makes a request to perform unjamming according to a determined procedure.

Abstract: An image-forming apparatus contains an external feeding tray on which a sheet is put, and a feeding roller and a sheet feeder that feed the sheet from the external feeding tray. A controller of the image-forming apparatus sets a first conveying speed and a second conveying speed that is slower than the first conveying speed, controls the sheet feeder to convey a second sheet, which has a longer length along a conveying direction thereof than the length of the external feeding tray, at the second conveying speed when the controller determines that a rear end of the second sheet projects from the external feeding tray, and hangs down from the external feeding tray based on the sheet information and controls a first sheet, which has a shorter length along a conveying direction thereof than the length of the external feeding tray, at the first conveying speed.

Abstract: An image forming apparatus has an image carrier, a charger, a developing device, a voltage application unit, and a controller. The developing device includes a developing roller. The voltage application unit applies a voltage to the developing roller and to the charger. The controller controls the voltage application unit. The controller controls the voltage application unit such that a developing bias having an AC voltage superposed on a DC voltage is applied to the developing roller and a charging bias including at least a DC voltage and having superposed thereon a compensation AC voltage with an opposite phase to an AC voltage induced in the charger by the developing bias is applied to the charger.