Abstract: This disclosure relates generally to package substrates with multiple embedded dice wherein each of the embedded dice can be connected directly to a bus of the package substrate without being routed through another die. The package substrate may be configured as a bumpless build up layer (BBUL) substrate.

Abstract: A package on package structure providing mechanical strength and warpage control includes a first package component, a second package component, and a first set of conductive elements coupling the first package component to the second package component. A first polymer-comprising material is molded on the first package component and surrounds the first set of conductive elements. The first polymer-comprising material has an opening therein exposing a top surface of the second package component. A third package component and a second set of conductive elements couples the second package component to the third package component.

Abstract: Provided are a package-on-package device and a method of fabricating the same. In the device, solder balls may be disposed on two opposing side regions of a package substrate, such that the device can have a reduced size or width. In addition, input/output pads of the logic chip and the solder balls, which need to be directly connected to each other, can be disposed adjacent to each other. As a result, it is possible to improve routability of signals to and from the solder balls and to reduce the lengths of the interconnection lines. Accordingly, it is possible to reduce any signal interference, to increase signal delivery speed, and to improve signal-quality and power-delivery properties.

Abstract: The present invention aims to provide an adhesive film that enables manufacturing of a high quality semiconductor device with good yield ratio, a method of manufacturing a semiconductor device using the same, and a semiconductor device obtained by the manufacturing method. This object is achieved by an adhesive film for embedding a first semiconductor element fixed to an adherend and fixing a second semiconductor element that is different from the first semiconductor element to the adherend, wherein the adhesive film has a thickness T that is larger than a thickness T1 of the first semiconductor element, and the adherend and the first semiconductor element are connected by wire bonding and a difference between the thickness T and the thickness T1 is 40 ?m or more and 260 ?m or less, or the adherend and the first semiconductor element are connected by flip-chip bonding and a difference between the thickness T and the thickness T1 is 10 ?m or more and 200 ?m or less.

Abstract: A device comprising a substrate, an integrated circuit (IC) die attached to the substrate on one side, a plurality of contact pads on an active side of the IC die, a plurality of thermally and electrically conductive legs, each of the legs attached to a respective one of the contact pads, and an encapsulating material formed around the substrate, the IC die, and a portion of the legs. A contact end of each of the legs is exposed, and one of the contact ends conducts a signal from a transistor in the IC die.

Abstract: A method for producing an encapsulating layer-covered semiconductor element includes the steps of preparing a support sheet including a hard support board; disposing a semiconductor element at one side in a thickness direction of the support sheet; disposing an encapsulating layer formed from an encapsulating resin composition containing a curable resin at the one side in the thickness direction of the support sheet so as to cover the semiconductor element; curing the encapsulating layer to encapsulate the semiconductor element by the encapsulating layer that is flexible; cutting the encapsulating layer that is flexible corresponding to the semiconductor element to produce an encapsulating layer-covered semiconductor element; and peeling the encapsulating layer-covered semiconductor element from the support sheet.

Abstract: A method for producing an encapsulating layer-covered semiconductor element includes the steps of preparing a support sheet including a hard support board formed with a through hole passing through in a thickness direction and a pressure-sensitive adhesive layer laminated on a surface at one side in the thickness direction of the support board so as to cover the through hole; disposing a semiconductor element on a surface at one side in the thickness direction of the pressure-sensitive adhesive layer in opposed to the through hole in the thickness direction; covering the semiconductor element with an encapsulating layer to produce an encapsulating layer-covered semiconductor element; and inserting a pressing member into the through hole from the other side in the thickness direction to peel the encapsulating layer-covered semiconductor element from the pressure-sensitive adhesive layer.

Abstract: Humidifier apparatus for a respiratory apparatus includes a housing providing a gas flow path, a heater apparatus, and a water supply distribution member configured and arranged to deliver water vapour to the gas flow path. The water distribution member is provided to the housing and in thermal communication with the heater apparatus.

Abstract: A manufacturing method for an input module by plastic injection molding has the following steps. First, a sensing substrate is prepared and is put into a mold. A plastic is injection molded to form a cover lens or a supporting board on one side of the sensing substrate. Therefore, by injection molding to form and combine the structures together, the manufacturing process for the input module is simplified and the combination strength of the input module is also enhanced.

Abstract: A method for manufacturing an optical component, the method includes taking an image of an end face of an optical waveguide component including a core and a cladding, aligning a position of the core with a position of a mold, on a basis of the position of the core within the taken image, and forming a lens on a surface of an optical film positioned at the end face of the optical waveguide component by pressing the mold onto the optical film.

Abstract: Provided is a release film for producing a light emitting diode having desired concaves and convexes accurately transferred directly to the surface of a resin-sealed portion, at a low cost and in high yield, and a process for producing a light emitting diode. A release film 10 having a plurality of convex portions (convex stripes 12) and/or concave portions (grooves 14) formed on the surface is used as a release film to be placed in a cavity of a mold for forming a resin-sealed portion to seal a light emitting element of a light emitting diode.

Abstract: A method for continuously preparing stable-type vitamin A microcapsules is disclosed. The method comprises the following steps: adding vitamin A crystals and an antioxidant into a crystal melter continuously according to a certain ratio under the protection of nitrogen to prepare vitamin A melting oil containing the antioxidant; pumping the above melting oil into a high gravity rotary packed bed emulsifier with a liquid distributor by a pump, and pumping aqueous solution containing gellable modified starch into the above high gravity rotary packed bed emulsifier after deoxidation treatment to obtain vitamin A emulsion at the outlet of the high gravity rotary packed bed emulsifier; and atomizing and spraying the emulsion continuously in a cooled starch bed for granulating, and performing fluidization drying and gelation treatment in a fluidized bed by taking nitrogen as a drying medium to obtain the stable-type vitamin A microcapsules.

Abstract: The problem addressed by the present invention is to provide a method for producing microparticles. Provided is a method that is for producing microparticles and that is characterized by containing at least the the following two steps: (I) a step for preparing a microparticle starting material solution by dissolving at least one type of microparticle starting material in a solvent using high speed stirring or ultrasonic waves, and (II) a step for precipitating microparticles by mixing the microparticle starting material solution and at least one type of precipitation solvent for precipitating the microparticle starting material in a thin film fluid formed between at least two processing surfaces that are disposed facing each other, are able to approach/separate from each other, and of which at least one rotates relative to the others.

Abstract: A matrix band for dental applications including a base material and a coating. The base material has an outer surface and a tooth contact surface as well as a perimeter. The coating is applied to the tooth contact surface and extends to the perimeter of the tooth contact surface. The coating is a fluorinated ethylene propylene, polytetrafluoroethylene and polyether sulfone.

Abstract: There is provided a method for manufacturing a ceramic honeycomb structure capable of enhancing production efficiency by reducing a need for offline inspection; and including a shape verification step A of measuring an outer shape of a ceramic honeycomb dried body 50 having partition walls 51 defining cells 52 extending from one end face 61 to another end face 62, to remove the ceramic honeycomb dried body 50 which does not satisfy specified conditions; a finishing step B of subjecting the ceramic honeycomb dried body 50 satisfying the specified conditions to finish processing so that a length in a direction L from one end face to another end face becomes a finished size, to obtain a finished ceramic honeycomb dried body 70; and a firing step C of firing the finished ceramic honeycomb dried body 70 to obtain the ceramic honeycomb structure 100.

Abstract: A mold for forming at least one food product with a measurement unit, wherein the mold has a filling side and a back side opposite to said filling side. Further, the measurement unit comprises: measuring means configured to measure at least one parameter while the mold is used in a production line or testing facility and a data transfer interface configured to transfer data to an external processing unit.

Abstract: The present invention relates to a method for manufacturing a concrete block, comprising the steps of: measuring the planned alignment considering the horizontal alignment, slope and cant of a site on which railway tracks are to be laid; arranging a plurality of first temporary assembly supports corresponding to the measured horizontal alignment; installing first temporary rails on the first temporary assembly supports, and adjusting the slope and cant in between the first temporary rails to correspond to the measured slope and cant; installing a plurality of first molds on the first temporary rails, following along therewith; installing a pair of second molds along the longitudinal direction of the first temporary rails; installing second temporary rails on the second temporary assembly supports; pouring concrete; forming the concrete surface with a finisher moving along the second temporary rails; curing the concrete; and separating the cured concrete from the first and second molds.

Abstract: A pressure-controlling foam molding method and a device thereof. The device includes a first mold and a second mold positioned on different levels. The first mold molds polymer material into a blank and is opened in a high pressure environment to limit the extent to which the molded blank foams. The foamed blank is compressed to have a volume approximately equal to or smaller than that of the second mold cavity of the second mold. Then the foamed blank is moved from the first mold pit of the first mold into the second mold pit of the second mold along a moving axis parallel to gravity line. Prior to transfer, with the plane on which the opening of the second mold pit is positioned as a projection face, the shape and position of the opening of the second mold pit correspond to vertical projective shape and position of the blank.

Abstract: An apparatus and process to maintain control of the temperature of low-melting compounds, high melt flow polymers, and thermally sensitive materials for the pelletization of such materials. The addition of a cooling extruder, and a second melt cooler if desired, in advance of the die plate provides for regulation of the thermal, shear, and rheological characteristics of narrow melting-range materials and polymeric mixtures, formulations, dispersions or solutions. The apparatus and process can then be highly regulated to produce consistent, uniform pellets of low moisture content for these otherwise difficult materials to pelletize.

Abstract: A manufacturing apparatus employs three-dimensional (3D) printing technology and computer numerical controlled (CNC) positioning technology that creates composite structures of any size. The composite structures exhibit predefined characteristics suitable for different applications. The composite structures consist of plastic sheathing melded together to form bladders, as well as fabric impregnated with one or more resin-based compounds. The composite structures assume any of a myriad of predefined shapes. The composite structures exhibit fire-resistance, water-resistance, water containment, phase-change capability, ballistic protection, low weight, and may further be operable as a solar panel or be electrically conductive. The composite structures are optionally constructed with vias or pathways, through which pipes, electrical conduit, and other building materials may be threaded.

Abstract: An apparatus and method are provided for making a conduit divided into channels by one or more strip-shaped substrates. The channels may be used for cables, such as fiber optic cables, coaxial cables, electrical cables, electrical wiring, and the like. Each divided conduit provides channels that allow e.g., cables to be pulled through without snagging or excessive heat build-up due to friction. In addition, the divided conduits do not allow contact or alternation losses between adjacent cables in other channels of the conduit.

Abstract: Provided is a polyester resin composition comprising a sulfonamide compound as a nucleating agent, in which polyester resin composition coloring is inhibited. The polyester resin composition according to the present invention is a polyester resin composition comprising, with respect to 100 parts by mass of a polyester resin, 0.01 to 30 parts by mass of a phosphorus-based antioxidant (A) and 0.1 to 30 parts by mass of a sulfonamide compound metal salt (B), wherein the sulfonamide compound metal salt (B) has a water content of 0.1% to 20% based on the mass ratio with respect to the sulfonamide compound metal salt and not higher than 3% based on the mass ratio with respect to the polyester resin composition.

Abstract: An apparatus for producing a two-color molded article, including a pair of primary forming molds, which constitute a primary molding unit for molding a primary molded body by a primary injection molding operation using a first injection unit, are opened while retaining the primary molded body by one of the pair of primary forming molds, and a second injection unit, which constitutes a secondary molding unit for molding a secondary molded body by secondary injection molding operation, is assembled in one of a pair of secondary forming molds with at least part of the second injection unit being accommodated in the one of the pair of secondary forming molds. A secondary molding cavity is formed between the pair of secondary forming molds so as to accommodate at least a part of the primary molded body retained by the above-described one of the pair of primary forming molds.

Abstract: A manufacturing method for a hinge has steps of forming one of a central element and a surrounding element by injection molding, cooling down the formed element, and forming the other element on the priorly-formed element by injection molding such that a limit segment of the surrounding element is mounted around the neck segment, which keeps the surrounding element from departing axially from the central element, and further simplifies a structure of the hinge. Because a melting point of the element formed priorly is higher than a melting point of the element formed later, the element formed later does not attach to the element formed priorly. Therefore, the two elements are relatively rotatable. Finally, because a manufacturing process is accomplished after injection molding twice, the process is more convenient and faster, and the cost is lowered.

Abstract: In a nanoimprinting method, an assembly, of which the entire surface is directly exposable to the environment, is supported by a pressure vessel by a support member such that fluid pressure from the environment operates on the entire surface of the assembly. Gas is introduced into the pressure vessel, and fluid pressure exerted by the gas presses a mold and a substrate against each other. Thereby, pressing with uniform pressure onto a curable resin coated surface can be realized in nanoimprinting that employs a mesa type mold and/or a mesa type substrate to be processed, and the occurrence of residual film fluctuations can be suppressed.

Abstract: The invention relates to a method for manufacturing a mineral fibre-containing composite and the novel mineral fibre-containing element produced by that method.

Abstract: A growing medium includes a bulking agent and a water-retentive polymer blended together and compressed at a volume-to-volume ratio ranging from about 2:1 to about 10:1, being substantially free of a water-soluble binder material.

Abstract: A method is provided for manufacturing a liquid crystal polyester molded body by molding a liquid crystal polyester composition using a molding machine containing a cylinder, a screw and a heater. The screw is provided inside the cylinder, and is composed of a feed section, a compression section, and a metering section, the feed section and the compression section of the screw are composed of a single flight, the heater is provided on the outer periphery of the cylinder. The liquid crystal polyester composition contains a liquid crystal polyester and a polyamide resin. The method for manufacturing the polyester molded body includes: a step of melting and metering the liquid crystal polyester composition, a step of tightening a mold and performing mold clamping, a step of injecting the melted liquid crystal polyester composition into the mold, and a step of extracting the solidified resin from inside the mold.

Abstract: A planar object to be processed 1 comprising a hexagonal SiC substrate 12 having a front face 12a forming an angle corresponding to an off-angle with a c-plane is prepared. Subsequently, the object 1 is irradiated with pulse-oscillated laser light L along lines to cut 5a, 5m such that a pulse pitch becomes 10 ?m to 18 ?m while locating a converging point P of the laser light L within the SiC substrate 12. Thereby, modified regions 7a, 7m to become cutting start points are formed within the SiC substrate 12 along the lines 5a, 5m.

Abstract: A method of stretching a film in a longitudinal direction thereof by a difference in circumferential speed between front and rear rolls comprising radiating infrared rays onto the film from above the film and below the film with photo-concentration heaters wherein a represents an irradiated-area length in the longitudinal direction of an area of the film irradiated with converged light of the infrared rays radiated from above the film and b represents an irradiated-area length in the longitudinal direction of an area of the film irradiated with converged light of the infrared rays radiated from below the film, the area having the length a and the area having the length b overlap with each other, and a and b are each 10 mm or more to 40 mm or less.

Abstract: The method includes rotating a drum about an axis of rotation. A discrete length of elastic substrate is positioned on the outer circumferential surface of the rotating drum, wherein the discrete length of elastic substrate is in a stretched state and defines a first length. The discrete length of elastic substrate may be defined by a first end region, a second end region, and a central region separating the first and second end regions. The method may comprise applying vacuum pressure to the first, second, and central regions of the discrete length of elastic substrate. Vacuum pressure may be reduced on the first and second end regions such that the discrete length of elastic substrate consolidates to a second length that is less than the first length.

Abstract: A method using a tool for producing a fiber composite component includes a planar fiber lay-up placed on a carrier mold, provided with a stiffening section protruding from the lay-up and pressed between parts of a molding tool. A chamber sealed from the mold is formed by an air-tight film enclosing the tool, the lay-up and the stiffening section. The chamber is connected to a resin supply line and a vacuum line. Resin is aspirated by negative pressure applied to the vacuum line, and the lay-up and the stiffening section are saturated by resin to form the fiber composite component. Air and resin are drawn between the parts of the tool, through the stiffening section and into a suction channel extending in the tool and connected to the vacuum line through a suction opening of the tool, for conducting air and/or resin.

Abstract: A contour of an outer diameter dimension of a dried ceramic honeycomb body is measured in a first measuring portion Q1 and a second measuring portion Q2 of the surface of an outer wall of the dried ceramic honeycomb body; a total of absolute values of differences between respective values of four contours C1x, C1y, C2x and C1y measured at a first measurement point P1x and a second measurement point P1y of the first measuring portion Q1 and a third measurement point P2x and a fourth measurement point P2y of the second measuring portion Q2 is obtained; and one end surface and the other end surface are subjected to finishing step in a state where four measurement points of the outer wall, at which the total of the absolute values is minimum, are fixed by a first fixture and a second fixture.

Abstract: A seat damper attached between a vehicle body and a seat in a seat suspension structure. The seat damper capable of allowing misalignment of mounting positions of mounting parts between the vehicle body side and the seat side, and being configured with reduced rigidity. The seat damper includes: a resilient member interposed between a vehicle body and a seat, supporting a load applied thereto; a seat-side bearing plate and a vehicle body-side bearing plate sandwiching the resilient member; a rod including a joint for pivotably coupling the rod to the seat-side bearing plate and a locking portion at the other end locking the rod to a lower face of the vehicle body-side bearing plate, with this joint being received in and locked to the seat-side bearing plate; and a ring-like rod guide provided to the vehicle body-side bearing plate for the rod to pass through.

Abstract: Disclosed herein is a hydraulic mount for a vehicle, wherein a serpentine wall that protrudes from a bottom surface of a membrane wherein the membrane operates as a bottom surface of the upper chamber, is bonded to an orifice lower plate and separates a central chamber and a serpentine inertia track. Furthermore, the serpentine inertia track is disposed along a circumference of the central chamber. The hydraulic mount additionally includes a plurality of orifice apertures that are formed in the orifice lower plate and configured to allow communication between the central chamber and the lower chamber.

Abstract: A vibration insulator apparatus may include a vibration insulating bush having a body having a head housing groove therethrough, a top surface contact portion extending from the body, a vibration distribution flange formed under the body and spaced from the top surface portion, and a vehicle frame contact portion formed under the vibration distribution flange and configured to contact with the vehicle frame, and a coupling bolt coupled to the vehicle frame and including a head housed in the head housing groove of the vibration insulating bush, wherein a flange of an air duct may be disposed between the top surface contact portion and the vibration distribution flange.

Abstract: In one embodiment, a motion attenuating isolator is provided. A main portion of the isolator includes one or more members composed of an elastomeric material. The one or more members are configured to form an annular shape between an isolated portion and a non-isolated portion. The main portion defines one or more circumferential gaps within the annular shape. A plurality of sets of secondary features is disposed within the circumferential gaps. Secondary features in the plurality of sets of secondary features are composed of an elastomeric material, and each set of secondary features includes a first secondary feature that extends from the isolated portion and a second secondary feature that extends from the non-isolated portion of the system. Each first secondary feature is configured to engage with a corresponding second secondary feature during displacement of the isolated portion with respect to the non-isolated portion in a respective direction.

Abstract: A fiber reinforced plastic spring is provided, in which broken pieces can be prevented from being scattered when breaking without using any additional member and variation in load when breaking can be reduced. FRP spring has a layered structure having basic unit consisting of a positive direction orientating layer and a negative direction orientating layer 22. By appropriately setting an absolute value of orientating angles of each layer, fibers in the positive direction orientating layer and the negative direction orientating layer can be entangled mutually, and thus, the spring as a whole exhibits pseudo-ductility in a breakage condition. Elastic modulus and strength available for use as a spring can be obtained and breaking at a resin portion between fibers can be prevented in each layer.

Abstract: A thrust sliding bearing includes an synthetic resin-made annular bearing body having an annular upper surface, an annular outer peripheral surface, and an annular lower surface; a synthetic resin-made annular bearing body having an annular lower surface; a sheet metal-made reinforcement member having an annular lower surface and an annular upper surface; a synthetic resin-made thrust sliding bearing piece interposed between the annular upper surface of the reinforcement member and the annular lower surface of the bearing body; and a synthetic resin-made radial sliding bearing piece disposed between an annular inner peripheral surface of a hollow cylindrical portion of the reinforcement member and an annular outer peripheral surface of a hollow cylindrical portion of the bearing body.

Abstract: A cylinder unit includes a cylinder, a rod guide, a piston, a piston rod, and a rebound member provided between the rod guide and the piston to absorb impact generated when the cylinder unit is fully extended. The rebound member includes a coil spring arranged around an outer circumference of the piston rod and a pair of upper and lower holder members fitted to the fixing portions formed in both ends of the coil spring so that the piston rod is inserted into a shaft center hole. The center portion formed between the fixing portions of the coil spring has a diameter smaller than that of the fixing portion.

Abstract: The present invention allows multiple bar or c-clamps to be connected by one or more bars, the bars passing through the head and/or feet of the clamps, with provisions for locking the angles of the clamps about the bars joining them. This allows temporary jigs to be quickly assembled, with the angles of the workpieces held by the clamps to be fixed relative to one another at specified angles. In addition, parallelism of clamps holding a single workpiece may be maintained through the use of two or more connecting bars.

Abstract: A vise assembly has a pair of moveable jaws mounted on guideways for movement toward and away from each other. The moveable jaws are driven by a vise screw on the vise body through head members of a pair of jaw nuts. The head members fit into cavities on the underside of the moveable jaws and have projections on first ends that have surfaces engaging mating recessed surfaces formed on one end of the cavities. Adjustable plungers are mounted on the head members and are extendable outwardly from a second end of the head members to engage and drive against surfaces of the cavities in a second direction. The adjustable plungers are adjustable in length so they can be retracted into mounting bores in the head members so the moveable jaws can be mounted on and removed from the head members, and extended so driving surfaces of projections on the head members and of the plungers are both in engagement with surfaces of the cavities.

Abstract: An image processing apparatus prints an image on a sheet and controls one of a plurality of binding units to bind the sheets on which the images are printed. The image processing apparatus further enables designation of a binding process to be used to bind the sheets, and provides notification of the number of sheets that can be bound by the designated binding process and the number of sheets that can be bound by a non-designated binding process.

Abstract: A method includes providing a cover substrate to a finishing line. The cover substrate is provided to a printer associated with the finishing line. Variable information is printed on the cover substrate with the printer. A plurality of signatures are collected from a plurality of pockets on the binding line. The variable cover is joined with a portion of a publication. The publication is bound to include the variable cover.

Abstract: A paper transmission apparatus includes a paper-in mechanism including a first roller, a paper-out mechanism including a second roller, a gear assembly, and a swing member. The swing member is connected to the first roller to the gear assembly. The first roller is rotatable along a first direction to rotate the swing member, and the swing member is capable of moving the gear assembly to be meshed with the second roller, to accelerate a rotating speed of the second roller being greater than a rotating speed of the first roller. The first roller is rotatable along a second direction opposite to the first direction to rotate the swing arm, and the swing arm is capable of moving the gear assembly to be meshed with the second roller, to decelerate the rotating speed of the second roller being smaller than the rotating speed of the firs roller.

Abstract: A sheet feeding device comprises a structure as an option, on which an apparatus main body of an image forming apparatus having a lower face with a positioning depression is placed. The structure includes a mounting member, a reinforcement member and a positioning pin. The mounting member is located to face to a periphery of the lower face. The reinforcement member is located below the mounting member. The positioning pin includes an upper part having a guard part and a lower part. The pin penetrates the mounting member so that the upper part can fit in the positioning depression and the lower part can come into contact with the reinforcement member. When the apparatus main body is placed, the upper part fits in the positioning depression, the guard part comes into contact with an edge of the positioning depression and the lower part comes into contact with the reinforcement member.

Abstract: A first feeder contacts a first surface of a first sheet held in a first tray and feeds the first sheet toward a recording unit. A second feeder contacts a first surface of a second sheet held in a second tray and feeds the second sheet toward the recording unit. An inner member is disposed above a standing plate. An outer member comprises an upstream portion opposing the standing plate, and a downstream portion opposing the inner member. The inner member guides the first surface of the first sheet and the first surface of the second sheet. The standing plate guides the first surface of the second sheet. The upstream portion of the outer member guides a second surface of the second sheet, and the downstream portion guides a second surface of the first sheet and the second surface of the second sheet. The standing plate moves relative to the outer member.

Abstract: An image forming apparatus including: a sheet feeding section; an image forming section configured to form an image on the sheet fed from the sheet feeding section; and a control device configured to: cause the image forming section to form the image, cause the image forming section to perform a quality assurance operation, if a resource necessary for the image forming operation is not available for a predetermined time from an end of the image forming operation, and extend the predetermined time when determined that it is necessary for the user to set the sheet in the sheet feeding section prior to the image forming operation to be longer than the predetermined time when determined that it is not necessary for the user to set the sheet in the sheet feeding section prior to the image forming operation.

Abstract: A sheet conveyor incorporated in an image forming apparatus includes an attraction/separation unit including an attraction belt, a first tension roller, and a second tension roller, a support member to support the attraction/separation unit, a roller drive unit to rotate one of the first and second tension rollers, a charging member to uniformly charge a surface of the attraction belt, a mechanism to swing the attraction/separation unit to move the attraction belt reciprocally about the support member between a sheet attraction position and a sheet conveyance position being located farther from the sheet stack than the sheet attraction position, and a pressing member disposed inside a loop of the attraction belt to press the attraction belt at the sheet attraction position toward the sheet stack and separating from the attraction belt at the sheet conveyance position.

Abstract: A paper tray for a printer includes a bottom plate and a rear plate. A plurality of papers is placed on the bottom plate. The plurality of papers includes a first paper and a second paper. The first paper is located on a topmost portion of the plurality of papers, and the second paper is located adjacent to the first paper and below the first paper. A plurality of bent pieces is secured on the rear plate. Each bent piece includes a first piece and a second piece. The first piece is placed on the rear plate. An obtuse angle is defined between the first piece and the second piece. The second pieces of the plurality of bents pieces are configured to allow the first paper sliding there over, and block the second paper sliding there over.