Abstract: A heating device includes a tube, a container, a heater, and heat medium. The tube through which liquid flows is spirally formed. The container has a cylindrical part whose axial direction is along a spiral direction of the tube and stores the tube. The heater is provided in the cylindrical part. The heat medium is in liquid form and fills the container.

Abstract: A packaging member (100) has a pair of holding portions (230) folded from opposite edges of each of a pair of first wall portions (210); the pair of holding portions (230) have an opposed portion (230a) opposed to a second wall portion (220), and an insertion piece (231); the second wall portion (220) has a wall-portion slit (221); and by inserting the insertion piece (231) in the wall-portion slit (221), the first wall portions (210) and the second wall portion (220) are held in a standing state.

Abstract: An image forming apparatus includes an image carrying member, a charging device, an exposure device, a developing device, a development voltage power supply, and a control section. The developing device includes a development container which contains a non-magnetic one-component developer and a developer carrying member which includes a rotary shaft and a roller portion stacked on the outer circumferential surface of the rotary shaft, and the resistance value of the roller portion is 9 to 11 [Log ?], and when the amount of toner conveyed on the developer carrying member is Md [g/m2], the amount of toner adhered on the image carrying member in a solid image is Mp [g/m2], the peripheral speed of the developer carrying member and the image carrying member are Sd [mm/sec] and Sp [mm/sec], 0.8×Sd/Sp<Mp/Md and 0.8?Sd/Sp?1.2 are satisfied.

Abstract: A development device includes an accommodation section that accommodates a developer and a developer bearing member that carries the developer in the accommodation section. The developer bearing member includes a magnetic member and a sleeve provided around the magnetic member rotatably around the magnetic member. The sleeve includes a metal substrate with a surface having projections and recesses and a plating layer covering the surface of the metal substrate. The plating layer contains chromium and cobalt. The developer contains a toner and the toner includes toner particles. The toner particles each include a toner mother particle and external additive particles attached to the surface of the toner mother particle. The toner mother particles contain a binder resin and a magnetic powder. The external additive particles include alumina particles with surfaces that are hydrophobized.

Abstract: A toner includes toner particles each including a toner mother particle and external additive particles attached to the surface of the toner mother particle. The external additive particles include fluororesin particles, specific external additive particles, and silica particles. The specific external additive particles contain barium titanate or strontium titanate. The silica particles have a detachment fraction of at least 5% by mass and no greater than 22% by mass. The detachment fraction of the silica particles is a percentage of a mass M2 of silica particles of the silica particles that have separated from the toner mother particles after ultrasonication to a mass M1 of the silica particles included in the toner particles before the ultrasonication. The ultrasonication is application of ultrasonic vibration to a mixed liquid of 5 g of the toner and 105.5 g of a nonionic surfactant-containing aqueous solution containing 0.55 g of a nonionic surfactant.

Abstract: A document transport device includes a document tray, an actuator, a delivery roller, a rotary shaft, a sheet feeding roller, a separation member, a slider movable along the rotary shaft, between a connected position where the slider is linked with the sheet feeding roller to transmit rotational force thereto, and a separated position where the slider is spaced from the sheet feeding roller, thereby disconnecting transmission of the rotational force to the sheet feeding roller, and an operation lever rotatably supporting the slider, and configured to move parallel to an axial direction of the rotary shaft, when the actuator rotates. When no document is on the document tray and the actuator is not rotating, the operation lever moves the slider to the separated position, and when the document is placed on the document tray and the actuator rotates, the operation lever moves, thereby moving the slider to the connected position.

Abstract: The intermediate transfer unit includes: an endless intermediate transfer belt which is turned around while carrying a toner image on its outer circumferential surface; and a plurality of rollers on which the intermediate transfer belt is turnably stretched, wherein the intermediate transfer belt has, on its inner circumferential surface, an information recording area in which belt information has been recorded, and the intermediate transfer belt has a mark at a position in the outer circumferential surface where a positional relationship between the mark and the information recording area comes to a specified relationship.

Abstract: A sheet feeding device includes a sheet feeding roller, a sheet conveying roller, a separation roller, and a cleaning member. The sheet feeding roller is rotated to feed the sheet in a predetermined sheet feeding direction. The sheet conveying roller is disposed on a downstream side of the sheet feeding roller in the sheet feeding direction. The separation roller forms a separation nip between the sheet conveying roller and the separation roller. The cleaning member is disposed on an upstream side of the separation nip in the sheet feeding direction, and cleans a surface of the separation roller. The cleaning member is configured to be deformable to be separated from the surface of the separation roller when the sheet feeding roller does not feed the sheet and to come into contact with the surface of the separation roller by the sheet fed by the sheet feeding roller.

Abstract: An inkjet recording apparatus includes two or more line recording heads and inks each accommodated in a corresponding one of the line recording heads. The line recording heads perform ink ejection onto a recording medium in a specific order at a regular ejection interval T. The ejection interval T is at least 300 milliseconds and no greater than 530 milliseconds. The line recording heads include at least a first line recording head that performs ink ejection onto the recording medium first and a second line recording medium that performs ink ejection onto the recording medium next to the first line recording head. Each of the inks contains a pigment, a water-soluble organic solvent, and water. The water-soluble organic solvent includes a glycol ether compound.

Abstract: Inkjet ink contains a pigment, a water-soluble organic solvent, water, and a surfactant. The water-soluble organic solvent contains both a glycol ether and a glycol compound. The inkjet ink has an Ohnesorge number Oh of 0.180 or more but 0.188 or less.

Abstract: An inkjet ink includes a self-dispersing pigment, specific particles and an aqueous medium. The specific particles include a pigment and a resin. In the specific particles, the mass ratio of the resin to the pigment is equal to or greater than 1.2 and equal to or less than 2.0. The resin includes a styrene-(meth)acrylic resin. The volume median diameter of the specific particles is equal to or greater than 100 nm and equal to or less than 170 nm.

Abstract: Provided is an information processing apparatus that enables an objective determination of an estimation of work related to printing. A data acquiring unit acquires a job for estimation. A unit estimating unit calculates an estimation of the work for each specific unit of the job acquired by the data acquiring unit. An entire estimating unit estimates and updates the estimation of the work for the entire job in real time based on the estimation of the work for the specific unit at the time calculated by the unit estimating unit. An estimation presenting unit presents the estimation of the work calculated by the entire estimating unit in real time.

Abstract: A gripping mechanism (3) includes a gripping roller (32) and a holder (31) that houses the gripping roller (32). A gripped portion (42) of a first component (4) is gripped between an outer surface of the gripping roller (32) and an inner surface of the holder (31) through action of gravity acting on the gripping roller (32). Preferably, the gripping roller (32) includes a core (321) that is cylindrical or columnar in shape and a covering section (322) that is an elastic body covering a circumferential surface of the core (321). Preferably, the covering section (322) has a circumferential surface with a friction coefficient greater than a friction coefficient of the circumferential surface of the core (321).

Abstract: A light guide device includes: a housing main body; a side member attached to a side portion in the housing main body; a light guide body supported by the housing main body and including a light incident surface to which light enters; a light source substrate held by the side member and including a light element that emits the light toward the light incident surface; and a positioning portion configured to position the light element to a reference position with respect to the light incident surface. The positioning portion includes: an abutting member provided in the housing main body and configured to abut on a mounting surface in the light source substrate on which the light element is mounted; and an elastic member held by the side member and configured to press the light source substrate toward the light guide body to position the light element to the reference position.

Abstract: A processor derives a plurality of unit density values which are each an average value of sensed densities for each of a plurality of unit areas sectioned for each unit length in a test toner image. The processor derives a weighted average of the plurality of unit density values to derive a test image density used for adjusting a control parameter in a printing portion. The unit length is a greatest common factor of two target lengths corresponding to perimeters of two types of target rotating members out of the plurality of rotating members. When a number of the plurality of unit areas is represented by n, n is a value obtained by subtracting 1 from an added value of a first constant and a second constant. The first constant and the second constant are values obtained by respectively dividing the two target lengths by the unit length.

Abstract: An OCR system which acquires character data from a form (50) through OCR processing is characterized by: managing an OCR information table (34e) in which an issuer name of an issuer on the form (50) is associated with a font name of a font used in the OCR processing; and, when the OCR processing is performed on an issuer-recorded content reading target area in the form (50), performing the OCR processing (S156) in the font indicated by the font name associated in the OCR information table with the issuer name of the issuer of the form (50).

Abstract: A sheet processing apparatus includes a plurality of folding devices, a control unit that controls a job involving a folding process, and an input unit that accepts settings for the job from a user. The input unit accepts, from the user, specification of a priority preference out of a plurality of predetermined preferences related to the folding process. The control unit selects, out of the plurality of folding devices, a folding device that can perform the folding process with the settings for the job made by the user as a target folding device. If a plurality of target folding devices are present, then based on the priority preference, the control unit determines, out of the plurality of target folding devices, a folding device with which to perform the folding process.

Abstract: A sheet feeder includes: a sheet rack; a pair of side plates movable along a width of a sheet on the sheet rack and abuttable against both widthwise ends of the sheet; a widthwise drive device that moves the side plates along the width of the sheet; a pair of end detecting devices provided one for each of the side plates and capable of detecting both the ends of the sheet abutting the side plates, respectively; and a control device that includes a processor, controls the widthwise drive device through the processor executing a control program to allow the widthwise drive device to move, based on outputs of the end detecting devices, the side plates until abutment against both the ends of the sheet, acquires respective travel distances of the side plates moved by the widthwise drive device, and determines a size of the sheet based on the travel distances.

Abstract: An inkjet recording apparatus includes a recording head, a conveyance belt, a control portion, an ink collector, and a suction portion. The ink collector includes a plurality of ink receivers that receives ink that has passed through openings of the conveyance belt during execution of flushing, a waste ink tank disposed below the ink receivers, a suction path that is formed in the waste ink tank and leads from each of the ink receivers to the suction portion, and an ink absorber that is filled in the waste ink tank and absorbs the ink sucked from the ink receivers. The suction path is formed by void spaces surrounded by the ink absorber.

Abstract: An inkjet recording apparatus includes a recording head, a conveyance belt, a control portion, an ink collector, and a suction portion. The ink collector includes a plurality of ink receivers that receives ink that has passed through openings of the conveyance belt during execution of flushing and a suction path leading from each of the ink receivers to the suction portion. The suction path includes a plurality of first flow paths each connected to each of the plurality of ink receivers and a merging chamber in which the plurality of first flow paths merges together and that is linked to the suction portion. As each of the first flow paths, the plurality of first flow paths is provided in parallel between each of the ink receivers and the merging chamber.