Abstract: A belt transmission system includes a first pulley, a second pulley, and an automatic tensioner including a first tension pulley, a fixed member, an arm, and a second tension pulley. The arm is swingable about an axis of the fixed member. When the first or second pulley serves as a driving pulley, a torque at one of the first and second tension pulleys located on a slack side at a maximum torque is higher than a torque of the other one located on a tight side.

Abstract: A printing apparatus capable of performing printing and cutting operations is presented. The printing apparatus including a supporting member for supporting a medium, an ink head comprising a nozzle for discharging ultraviolet light curable ink onto the medium and coupled to the guide rail in a freely moveable manner for moving the ink head in the second direction, a cutting head comprising a cutter for cutting the medium and coupled to the guide rail in a freely moveable manner for moving the cutting head in the second direction, and an ultraviolet light irradiation device coupled to the ink head for irradiating ultraviolet light onto the ultraviolet light curable ink discharged on the medium during the printing operation, wherein at least a portion of the medium is irradiated by the ultraviolet light after a region of the recording medium is cut by the cutter.

Abstract: According to one embodiment, an ink jet recording apparatus includes: a guide rail extending in a first direction; an ink head that slidably engages with the guide rail and discharges an ultraviolet light curable ink toward a recording medium; a second head that slidably engages with the guide rail; a carriage that moves along the guide rail; a first connection mechanism that bridges the carriage and the ink head and detachably connects the carriage with the ink head; a second connection mechanism that detachably connects the carriage with the second head; and an ultraviolet light irradiation device that is attached to the ink head to move together with the ink head, that is positioned in front, in rear or below the first connecting mechanism when the carriage and the ink head are connected by the first connecting mechanism, and that irradiates the ultraviolet light curable ink discharged from the ink head on the recording medium with ultraviolet light.

Abstract: An ink jet recording apparatus includes a guide rail extending in a first direction; an ink head that slidably engages with the guide rail and discharges an ultraviolet light curable ink toward a recording medium; an ultraviolet light irradiation device attached to the ink head to move together with the ink head and that irradiates ultraviolet light to the ink discharged on the recording medium; a second head that slidably engages with the guide rail; a carriage that moves along the guide rail; a first connection mechanism that detachably connects the carriage with the ink head; a second connection mechanism that detachably connects the carriage with the second head; and an irradiation prohibition mechanism that prohibits the irradiation by the ultraviolet light irradiation device based on a predetermined condition relating to a connection state between the carriage and the ink head caused by the first connection mechanism.

Abstract: The present application discloses a method for performing a hole-plugging process on a circuit board. The method comprises: forming at least two locating holes on the circuit board; delivering the circuit board to a locating area of a hole-plugging screen printer, and adjusting a moving path of the circuit board in the locating area according to a locating device of the hole-plugging screen printer and the locating holes; and transporting the circuit board to a screen printing area of the hole plugging screen printer automatically according to the moving path, and adjusting a hole-plugging stencil of the hole-plugging screen printer to align an inking point of the hole-plugging stencil with a hole to be plugged on the circuit board, so as to plug ink dropped from the inking point of the hole-plugging stencil into the hole. The present application discloses a system for executing above method.

Abstract: A printer of the present invention includes a print drum around which a master made by cutting a stencil is to be wrapped, an ink feeding device for feeding ink to the master wrapped around the print drum and a pressing member for pressing a sheet relatively to the print drum to thereby print an image on the sheet. The operator of the printer is capable of selecting either one of a usual print mode and a silence print mode that give priority to image quality and noise reduction, respectively.

Abstract: A printer of the present invention includes a print drum around which a master made by cutting a stencil is to be wrapped, an ink feeding device for feeding ink to the master wrapped around the print drum and a pressing member for pressing a sheet relatively to the print drum to thereby print an image on the sheet. The operator of the printer is capable of selecting either one of a usual print mode and a silence print mode that give priority to image quality and noise reduction, respectively.

Abstract: A conveying route along which the leading edge side of a roll stencil sheet is conveyed to a stencil sheet clamp section of a printing drum is formed. Along the conveying route, arranged are: a writing head which forms a perforated image on the stencil sheet; a platen roller on which the writing head is brought into pressure contact and which conveys the stencil sheet; a stencil sheet cutter which cuts the stencil sheet; a stencil positioning sensor which detects a leading edge of the stencil sheet; and storage means for temporarily storing the stencil sheet.

Abstract: A belt drive cantilever tensioner. The tensioner is particularly suited to belt drive systems having a high belt tension. The tensioner comprises a pulley journaled to a cantilever arm. The cantilever arm is pivotably attached to a mounting surface by a fastener at a pivot. The cantilever arm further comprises a hole disposed radially from the pivot for containing an embedded resilient member. A second fastener extends through the resilient member fixing it in a position relative to the first fastener. A load applied to the pulley causes the arm to pivot thereby causing a lever action to exert a force upon the resilient member. The resilient member has a limit of movement as well as an asymmetric force characteristic which increases in proportion to an arm rotation.

Abstract: A conveying route along which the leading edge side of a roll stencil sheet is conveyed to a stencil sheet clamp section of a printing drum is formed. Along the conveying route, arranged are: a writing head which forms a perforated image on the stencil sheet; a platen roller on which the writing head is brought into pressure contact and which conveys the stencil sheet; a stencil sheet cutter which cuts the stencil sheet; a stencil positioning sensor which detects a leading edge of the stencil sheet; and storage means for temporarily storing the stencil sheet.

Abstract: A stencil printer of the present invention includes a print drum around which perforated part of a stencil or master is to be wrapped. A master making section make a master and includes a cutter for cutting the stencil paid out from a roll. A master discharging section removes the master wrapped around the print drum and then discharges it. A deciding device determines, on the turn-on of a power supply, whether or not the power supply has been turned off during an interval between the time when the stencil paid out from the roll starts being perforated and the time when the cutter cuts the stencil. When the deciding device determines that the power supply has been turned off during the above interval, the master discharging section discharges the master present on the print drum.

Abstract: In order to provide a drum type printer having a mechanism for adjusting a transverse position of a printed image improved such that when a plurality of drawout type drum units are used in the drum type printer, the transverse position of the printed image once adjusted with respect to each drum unit is preserved in each drum unit, wherein the adjustment of the position of the frame means 86 supporting the printing drum 10 relative to the machine frame 24 along the central axis of the printing drum is adjusted by an axial shifting of the shaft member 116 relative to the frame means 86, a shaft member 116 being latched at its one end to the machine frame 24.

Abstract: A stencil forming apparatus in which a stencil for a stencil printing formed from a rolled stencil sheet, includes: a guide roller; a rotatable platen roller having a central axis which is in parallel with the guide roller; a thermal head having a plurality of heat generating elements, and provided above the platen roller, wherein the stencil sheet pulled out of the rolled stencil sheet is passed through the platen roller and the thermal head through the guide roller and is subjected to thermally making fine holes thereon (the stencil of the stencil printing); and an intermediate roller provided between the platen roller and the guide roller wherein the intermediate roller is vertically movable in a predetermined range.

Abstract: A master making device incorporated in a stencil printer. The operation for feeding the leading edge of a web or stencil toward a master clamper provided on a print drum is assigned to a platen roller. When the web is to be wrapped around the print drum, the operation for causing the web to form a slack and the operation for applying a tension to the web are implemented only by a tension member which selectively blocks or unblocks a web passageway.

Abstract: A replacement cheekstrip having an upper part and a lower part for fitting into a knife box assembly that is installed in the rotary cutting cylinder of the folder used on a roll fed printing press. The upper part is made from a hard solid material connected to the lower part which is made from a soft material. The soft material can be open cell sponge rubber. A knife is inserted between the flat surfaces of the replacement cheekstrips. The soft material applies correct tension to the upper part, hard solid material, which in turn contacts the paper, against an adjacent cutting member, and clamps it securely to enable the knife to make a quiet, consistent, distortion free, severance.

Abstract: A combined printer and cutter for simultaneously cutting and printing on a record media such as a paper tape for a customer receipt, including a stationary knife blade and a rotary knife blade which, upon rotation, severs the tape therebetween. Rocker arms are provided for rotating the rotary knife through its cutting operation and to drive the print head from a position against an ink source to a position against the record media simultaneously performing the cutting operation so as to print a trademark or other indicia on the record media concurrently therewith. The stationary knife is itself the printing platen and the rocker arms are mounted on the rotary knife so that all forces involved in oscillating the rotary knife and rotating the print head are taken by this relatively large shaft.