Abstract: The invention relates to a printing unit (4) with a first screen-printing cylinder (12) that, together with a second cylinder (17), defines a printing gap (14), said printing unit being characterized in that the second cylinder (17) is likewise a screen-printing cylinder.

Abstract: A stencil printer includes a printing drum which has an ink-permeable peripheral wall and is rotated about a predetermined axis of rotation with a stencil master wound around the peripheral wall, a back press roll which associates with the printing drum to nip and convey a printing paper, and an internal press roll which is provided in the printing drum to be movable back and forth toward and away from the back press roll and pushes the peripheral wall of the printing drum toward the back press roll. An internal press roll drive mechanism moves back and forth the internal press roll between a first position where the internal press roll is held away from the back press roll and a second position at a distance from the first position toward the back press roll and is able to freely change the distance between the axis of rotation of the printing drum and the second position.

Abstract: A printing unit has two screen printing cylinders (12, 17) and a printing gap (14) formed by two cylinders (9, 16). At least the second cylinder of the two cylinders that form the printing gap is a transfer cylinder which co-operates with the second screen printing cylinder. A screen printing cylinder for the printing unit has a screen (23), a doctoring device which is situated radially inside said screen and a support element (36) which extends axially on the screen printing cylinder in the area of a limited peripheral section and which is used for sustaining a pressure exerted radially, outwards on the screen by the doctoring device when the limited peripheral section passes in front of said doctoring device.

Abstract: A stencil printing machine includes a printing drum for receiving a perforated stencil sheet around an outer peripheral surface thereof. The printing drum is rotatable about a central axis thereof. The printing machine further includes a first holding device provided to the outer peripheral surface of the printing drum for holding a leading end of the stencil sheet, and a second holding device provided to the outer peripheral surface of the printing drum for holding a trailing end of the stencil sheet.

Abstract: A stencil printing machine is provided with a paper feed section feeding a print sheet, which is allowed to have paper dusts thereon, in a paper feed path, and a print section to which the print sheet is transferred, and including a printing drum carrying thereon a stencil sheet having a perforated image area formed on the basis of image data and a rotary printing press member located in close proximity to an outer circumferential periphery of the printing drum to impart printing pressure thereto to allow the print sheet to be transferred in press contact between the printing drum and the rotary printing press member such that printing ink is transferred onto the print sheet to generate a desired image thereon through the perforated image area.

Abstract: A stencil printing machine 1 is provided with a stencil drum 16 and a opposite 17 which are a pair of cylindrical parts located with their external peripheral surfaces being close to each other, a stencil sheet 15 being detachably wound on the external peripheral surface of the stencil drum 16, and serves to perform stencil printing process by rotating the stencil drum 16 and the opposite 17 in order that the external peripheral surfaces thereof are located close to each other and moved in the same direction while the stencil sheet 15 is pressed against the opposite 17, and by making the stencil sheet 15 in contact under pressure with a sheet of paper 22 passing between the stencil drum 16 and the opposite 17 by the pressing force of the stencil drum 16. The stencil drum 16 is detachably mounted on the stencil printing machine and provided with storage units 201 to 203 for storing information about the pressing force of the stencil drum 16 against the opposite 17.

Abstract: To pertinently control perforation and transfer (setting) of a stencil sheet in correspondence with each of plural printing drums, perforated stencil sheet are set to plural printing drums byt moving single stencil making unit, and a position of the stencil making unit is detected by position sensors and a shield plate. Then, printing drum information of ink color supplied to the respective printing drums is detected by a printing drum information detecting device with regard to respective printing drums, and the stencil making unit is made to be standby as it is at a position of setting drum to which the stencil making unit has been transferred finally after finishing to transfer stencil sheet to the respective printing drums. At a successive stencil making operation, stencil making instruction information expediting perforation to an operator is sent from the printing drum at standby position to be displayed on a displaying device.

Abstract: A stencil printing machine includes a base member having rigidity and rotated around a central axis line of its own, and an ink-permeable member having one end portion and the other end portion with respect to a rotational direction of the base member. The ink-permeable member is mounted to the base member along the rotational direction and forms a circumferential surface for attaching a stencil sheet. A skew adjusting device is provided for moving the ink-permeable member relative to the base member in a skewed direction which is not parallel with both of the central axis line and the rotational direction.

Abstract: A stencil printing machine includes a squeegee roller in a printing drum having a peripheral wall having an ink-nonpermeable nonperforated portion around an ink-permeable perforated portion to have a stencil sheet and a printing the print sheet therearound. A projected portion is provided on the nonperforated portion. The thickness of the nonperforated portion is formed thicker than that of the perforated portion, and accordingly, press force exerted to the peripheral wall and the stencil sheet by the squeegee roller and the outer roller is enhanced on the nonperforated portion. Therefore, spread of ink is stopped within the perforated portion and ink is prevented from leaking from a gap between the outer peripheral face of the nonperforated portion of the peripheral wall and the stencil sheet.

Abstract: Device and process for the removal of the coating layer which forms the screen stencil on a rotary printing screen for screen printing from the rotary printing screen. The device comprising a rotatable support roller and a nozzle unit for spraying a jet of liquid onto the rotary printing screen at high pressure, the rotary printing screen lying on the support roller in the working area of the nozzle unit, and the device having a free space beneath the support roller for a rotary printing screen section freely suspended beneath the support roller.

Abstract: Printing pressure to be applied to a press roller (18) is obtained by a pressure applying spring (33) and an adjustable spring (41), and the adjustable spring (41) is extended or contracted by a tensile-force varying mechanism, thereby rendering the printing pressure variable. Accordingly, in cases such as where the viscosity of ink has changed due to a temperature change, and the contact time of a printing sheet (P) with respect to a rotary cylindrical drum (14) or a stencil sheet (M) has changed due to a change in the printing speed, it is possible to stabilize printed image performance by adjusting the density of an image which is printed. In addition, a strong tensile force for stabilizing the printing pressure by the press roller (18) is dispersed between the pressure applying spring (33) and the adjustable spring (41), and the adjustable spring (41) is extended or contracted.

Abstract: A thermal stencil sheet for use in a laser stencil printing system comprising a stencil sheet comprising a base layer, a radiation absorbing layer, and a thermal film overlying the radiation absorbing layer. The base layer comprises a porous fibrous material which is saturatable with liquid.

Abstract: A multicolor printing method using a plurality of ink drums each being loaded with a respective master and a system therefore are disclosed. A plurality of removable ink drums replaceable with each other are fed with respective masters by fixed master feeding devices smaller in number than ink drums via the replacement of the drums and are used for printing. The method and system of the present invention are low cost and enhance downsizing and accurate registration between the masters.

Abstract: A printer capable of printing a multicolor image with a single pass of a paper or similar recording medium includes a plurality of print drums. Drum drive gears each are mounted on a particular print drum such that the print drum is replaceable. The print drums are interlocked to each other by rotatable members including relay gears meshing with the drum drive gears, timing pulleys fixed to the relay gears, a timing belt, and pulleys for adjustment. Each rotatable member has teeth the number of which is selected such that the number of rotations of the rotatable member to occur in a single period of the print drums is an integral multiple of the number of rotations of the print drums.

Abstract: A printer capable of printing a multicolor image with a single pass of a paper or similar recording medium includes a plurality of print drums. Drum drive gears each are mounted on a particular print drum such that the print drum is replaceable. The print drums are interlocked to each other by rotatable members including relay gears meshing with the drum drive gears, timing pulleys fixed to the relay gears, a timing belt, and pulleys for adjustment. Each rotatable member has teeth the number of which is selected such that the number of rotations of the rotatable member to occur in a single period of the print drums is an integral multiple of the number of rotations of the print drums.

Abstract: A printer including a plurality of print drums and capable of producing, e.g., color printings is disclosed. When a closed position sensor responsive to a door outputs a close signal and when a drum sensor assigned to a print drum to be mounted outputs an absence signal, a controller controls drum drive sections such that a mount/dismount drive section assigned to the print drum to be mounted takes the position corresponding to a mount position. Also, in response to a mount position signal output from a mount position sensor, the controller controls the drum driving device such that the mount/dismount drive section stops at the position corresponding to the mount position. The printer allows an operator thereof to mount the print drums without pressing, e.g., mount/dismount keys each time and thereby saves time.

Abstract: A screen printing apparatus with a circular screen (1) and a squeegee (2) therein and an impression cylinder (3). A system that is synchronized with a screen drive device and the impression cylinder (3), and lifting the squeegee (2) in controlled manner. The system includes at least one cam disk (14) which, via a squeegee lever (16), moves the squeegee (2) into the desired position.

Abstract: A hybrid stencil printing apparatus comprises: a stencil-making/printing unit configured to perforate a stencil sheet corresponding to a desired image, to wind the stencil sheet around an outer peripheral surface of a print drum, and to transfer a printing medium to the print drum with pressure and the printing medium is printed; an other-method image-formation unit configured to print the printing medium transferred on the same transfer passage as the stencil-making/printing unit according to a different printing method from the stencil-making/printing unit; and an image-formation unit selection-unit configured to input an original digital image, to determine a attributes of each image portion of the inputted original digital image, and to allocate each image portion selectively to the stencil-making/printing unit or the other-method image-formation unit based on the determination result.

Abstract: A stencil printer includes a multistage paper feeding device capable of selectively feeding different kinds of papers and an ink drum shiftable in a direction perpendicular to a direction of paper conveyance, i.e., in the widthwise direction of a paper. A paper is conveyed along a path coincident with a center line connecting the coincident centers of paper stocking portions included in the paper feeding device and the center of a paper discharge tray, so that the paper can be accurately conveyed without any skew. Further, side fences provided on the paper discharge tray are interlocked to each other and movable in the widthwise direction of a paper symmetrically with respect to the center line of the transport path, neatly laying the paper on the tray between the side fences. In addition, the ink drum shiftable in the above direction allows an image position to be adjusted without varying the paper transport path.

Abstract: In a stencil disposal unit and stencil disposal method for disposing a stencil clamped at and wound on a printing drum of a rotary stencil printing machine, the end part of the stencil sheet from a clamp is released, the printing drum is caused to rotate in a winding direction with respect to the end part of the stencil sheet released from the clamp, so as to guide the end part of the stencil sheet to a pull-in position, and the printing drum is caused to rotate in a reverse direction opposite to the winding direction, as pulling in the end part of the stencil sheet.

Abstract: A stencil printing machine 1 is provided as including a downstream rotary printing drum 50 with an outer circumferential periphery 50a mounted with a stencil sheet 20, and a rotary press roller 56 which is moveable between a pressurized position to press an outer circumferential periphery 50a of the printing drum 50 and a separated position displaced from the outer circumferential periphery 50a of the printing drum 50, wherein a print sheet 45, which is fed, is pressed and transferred between the printing drum 50 and the press roller 56 which rotate together, and, during such a pressurized transfer stage, ink is transferred to the print sheet 45 to perform printing operation. The outer circumferential periphery of the press roller 56 is formed with micro-convexities and concavities.

Abstract: A multicolor stencil printer including print drums each storing an ink of a particular color, pressing members each positioned and configured to move into contact with a particular one of the print drums to nip a recording medium for printing and move out of the contact to transport the recording medium toward downstream, and holding devices each assigned to a particular one of the pressing members for holding the particular one of the pressing members out of the contact with the particular one of the print drums, wherein in a color selective mode, the print drums and the pressing members selectively cooperate to nip the recording medium such that the holding devices assigned to unused pressing members hold the unused pressing members away from the print drums associated cooperatively with the unused pressing members.

Abstract: A stencil printer of the present invention includes a porous hollow cylindrical print drum rotatable with a perforated master having a porous resin film as a base wrapped therearound. A pressing member is selectively movable into or out of contact with the print drum for pressing a paper or similar recording medium fed from a paper feeding device against the print drum. As a result, ink is transferred from the inside of the print drum to the paper via perforations formed in the master. The pressing member is implemented as a roller having a plurality of layers including an inner layer having a hardness of 8° to 14° (JIS (Japanese Industrial Standards)-A) and an outer layer having a hardness of 30° to 40° (JIS-A). With this configuration, the entire roller has surface hardness of 18° (JIS-A) and prevents the resin film of the stencil from partly coming off due to stress ascribable to the edges of relatively thick papers.

Abstract: A stencil printer of the present invention perforates, or cuts, a thermosensitive stencil with a thermal head to thereby make a master. The stencil printer includes a stencil distinguishing device for automatically identifying the kind of the stencil or a master setting device for allowing the operator of the printer to set the kind of the stencil. An adjusting device selects, among master making conditions experimentally determined beforehand, a master making condition matching with information output from the stencil distinguishing device or the stencil setting device. The operator can easily change the master making condition in accordance with the kind of a stencil to use.

Abstract: A stencil sheet retaining device includes a clamping plate (44) for retaining an end portion of the stencil sheet (M), and a flapper member (49) for drawing out the end portion of the stencil sheet (M) from the clamping plate (44) side. A first contact piece (48) attached to the clamping plate (44) and a second contact piece (51) attached to the flapper member (49) are pressed due to the profiles of the cam grooves (56a, 56b) of a movable cam member (56) according to the rotary position of the rotary cylindrical drum (6), so that the clamping plate (44) and the flapper member (49) can be opened and the open angle of the clamping plate (44) and the flapper member (49) can be adjusted.

Abstract: A stencil printing machine in which a stencil is sheared off of a continuous roll of stencil sheet to a length determined by a selected size of printing paper, mounted onto a printing drum, removed from said printing drum, and transported to and inserted into a used stencil container by a transport means, which comprises a stencil length specifying means which specifies the length of the stencil according to a selected size of printing paper when the stencil is prepared for printing, and a control means which controls an operation amount of the transport means, at the time the stencil is removed from the printing drum, in relation to the length of the stencil as specified by the stencil length specifying means. The control means may comprise a random access memory to record the data from the stencil length specifying mechanism.

Abstract: A printer capable of printing a multicolor image with a single pass of a paper or similar recording medium includes a plurality of print drums. Drum drive gears each are mounted on a particular print drum such that the print drum is replaceable. The print drums are interlocked to each other by rotatable members including relay gears meshing with the drum drive gears, timing pulleys fixed to the relay gears, a timing belt, and pulleys for adjustment. Each rotatable member has teeth the number of which is selected such that the number of rotations of the rotatable member to occur in a single period of the print drums is an integral multiple of the number of rotations of the print drums.

Abstract: A stencil leading end mounting device of a printing drum of a rotary stencil printer for clamping a stencil leading end between a stencil leading end supporting surface 70 of a base member 72 and a clamping surface 74 of a clamp member 76, the clamp member being biased at a drive portion 82 by a lever member 108 of an actuator to be tilted open about a linear pivot axis P, wherein the linear pivot axis P is defined by a contact point between a convex cam 115 and a bearing surface provided between the clamp member 76 and the based member 72, so as to move from a side of the clamping surface toward a side of the drive portion as the clamp member is more tilted.

Abstract: A printing machine for printing a substrate web, which printing machine comprises at least one printing module, such a printing module being provided with an impression roller and ink application means, the ink application means comprising a cylindrical element, which cylindrical element extends parallel to the impression roller and abuts against the impression roller at a contact line with interposition of the substrate web, the cylindrical element being arranged to apply a desirable ink printing pattern to the substrate web, wherein a relevant printing module is provided with a circumferential bearing which engages an outer surface of a relevant cylindrical element, which can be brought into a locking position and into an exchange condition, the circumferential bearing being arranged to receive cylindrical elements intended for different printing techniques, such as silk-screen printing, flexographic printing, letterpress printing, intaglio printing, offset printing and the like.

Abstract: Disclosed herein is a stencil printer including a rotatable paper pinch drum with a cutout, a plurality of printing drums, and a position control unit. The cutout is formed in a portion of the outer peripheral surface of the rotatable paper pinch drum along a generating line in the axial direction of the drum. The plurality of printing drums have axes parallel with an axis of the paper pinch drum and disposed around and near the paper pinch drum so that the printing drums rotate in synchronization with the paper pinch drum in the opposition direction from the direction of rotation of the paper pinch drum. Each of the printing drums includes a stencil paper clamper which clamps one end of a paper stencil wound around the outer peripheral surface of the printing drum and an internal press roller which supplies ink to the stencil paper.

Abstract: Improved air embossing systems, improved air lances, and improved methods of air embossing fabrics, which are able to produce an unprecedented level of fine detail, crisp transition between unembossed and embossed regions, lack of undesired embossing artifacts, and a high degree of uniformity across the width of an embossed fabric, when compared to the performance of typical, conventional air embossing systems are disclosed. The disclosed air embossing systems utilize generally cylindrical, rotating stencils with air lances positioned therein for directing a stream of air through apertures in the stencil and onto the embossable surface of a fabric.

Abstract: A stencil printing machine and a method carrying out a printing operation are disclosed wherein a print sheet is transferred through between an upstream printing drum and a press roller in a pressured state to transfer ink onto an upper surface of the print sheet and is then transferred through between a downstream printing drum and a press roller in a pressured state to transfer ink onto the other surface of the print sheet to perform a both sides printing operation. A printing-drum drive escape mechanism is located to shift the downstream printing drum to a drive escape position to interrupt rotation of the printing drum while retaining the press roller in a separated position away from the shifted printing drum in such a manner that the printing operation under such a condition in a one side printing mode is executed.

Abstract: A printing control apparatus for controlling a stencil printing machine (50, 100), wherein a stencil sheet, which is made on the basis of image data, is wound around a printing drum (25; 125, 126) with which a print sheet (34; 141) is held in pressured contact to perform a stencil printing operation, provides the stencil printing machine with image data representative of an image to be reproduced as an object, and printing order information representative of a page order in which the printing operation is performed using image data, an ink color for the printing drum to be used, and a timing in which one printing drum is replaced with another one. In accordance with the printing order information, the ink color contained in image data is detected and an order for each page to be printed is determined on the basis of a user's print request to execute the printing operation according to the page order and to reduce the number of times the printing drum is replaced with.

Abstract: A printing drum (2), to which a stencil sheet having subjected to a stencil making process is attached, can be attached to and removed from a printer main body (1). A nonvolatile memory (25) is provided in the printing drum. The number of print products is stored in the nonvolatile memory as “Information on the use” of the printing drum. A control device (5) of the printer main body reads out “Information on the use” from the nonvolatile memory and stores them in a RAM (12) when the printing drum is attached to the printer main body. Subsequently, when printing is performed, information on the number of print products is updated. When the printing drum is removed from the printer main body, “Information on the use” is updated and written into the nonvolatile memory.

Abstract: In the multi-drum type rotary stencil printer adapted to drive a plurality of printing drums altogether in synchronization with one another by a common drive mechanism, when one of the printing drums is placed out of engagement with a printing, a degradation of ink is anticipated in the temporarily rested printing drum due to its excessive stirring during an idling rotation. In order to avoid such an ink degradation, a clutch is incorporated in a route of transmitting a driving force from the common drive mechanism to each of the printing drums, so that the transmission of the driving force through each of the route can be selectively interrupted.

Abstract: A residual amount in the discharged stencil sheet box is displayed, a superior compression is performed against the discharged stencil sheet and many stencil sheets can be stored in the box. When the perforated stencil sheet 22 transferred by the feeding means 41 into the discharged stencil sheet box 42 is compressed by the discharged stencil sheet compression plate 43, the encoder 50 is utilized for detecting moving amount and compression force of the plate 43. When the pulse width of the pulse generated from the encoder 50 becomes a predetermined value, it is discriminated that the compression force with the plate 43 reaches a desired value, and the compression motor 44 is stopped. The number of pulses generated by the encoder 50 is counted to detect the moving position of the plate 43 and the residual amount in the box 42 is displayed in response to the moving position.

Abstract: In a printing machine, a tip end of a print sheet 22, which is transferred from a paper feed section 5 synchronously with rotation of a printing drum 16 and a pressure drum 17, is clamped by a sheet clamp section 21 at a rotation clamp position upstream of a press portion on which the printing drum 16 and the pressure drum press each other. The print sheet 22 thus clamped is transferred along an outer peripheral surface of the pressure drum 17 and pressed against a stencil sheet on the press portion. Then, printing is done. The printing machine is provided with a sheet clamp guide member 30 guiding the tip end of the print sheet 22, which is transferred from the sheet feed section 5, to a position on which the print sheet 22 is abutted on a sheet abutment face 21a of the sheet clamp section 21 located at the rotation clamp position.

Abstract: A stencil printer includes a printing drum which is rotated bearing a stencil wound around the printing drum, a pair of paper feed rollers which are rotated in contact with each other to supply a printing paper to the printing drum, and a press roller which is rotated in contact with the printing drum to convey the printing paper supplied to the printing drum with the printing paper pressed against the stencil on the printing drum. A paper feed roller driver drives the paper feed rollers, and a paper feed roller controller controls the paper feed roller driver to rotate the paper feed rollers at a peripheral speed higher than that of the printing drum at least from the time the leading end of the printing paper reaches the printing drum to the time the trailing end of the printing paper passes the paper feed rollers.

Abstract: A multicolor printing method using a plurality of ink drums each being loaded with a respective master and a system therefore are disclosed. A plurality of removable ink drums replaceable with each other are fed with respective masters by fixed master feeding devices smaller in number than ink drums via the replacement of the drums and are used for printing. The method and system of the present invention are low cost and enhance downsizing and accurate registration between the masters.

Abstract: A stencil printer of the type including a print drum around which a master is to be wrapped is disclosed. A press roller presses a paper sheet or similar recording medium against the master wrapped around the print drum. A press roller displacing device moves the press roller between an operative position where it presses the recording medium against the master and an inoperative position where it is spaced from the print drum. A press roller driving device causes the press roller held at the inoperative position to rotate, at a position where the roller faces the print drum, in the same direction as the direction in which the drum rotates during printing. The press roller driving device causes the press roller to rotate only when the roller is held at the inoperative position. The printer is capable of effecting preliminary rotation of the press roller at a stable, accurate speed with a relatively simple configuration while freeing the master, recording medium and print drum from loads.

Abstract: According to the stencil printing machine of the present invention, the printing drum unit is moved from a side direction to the pulled-out first support rail so that the one support rod is supported. That is, unnecessary becomes the operation of holding up the printing drum unit once upwards and then bringing down the unit. Moreover, the one support rod is supported so that the printing drum unit is provisionally supported. Thus, this unit can be supported by one hand. In this state, the second support rail is pulled out and the other support rod is supported by the second support rod, so that the pair of the support rods is supported by the first and second support rails. In this way, setting-up of the printing drum unit is completed.

Abstract: A stencil printer includes a hollow cylindrical, porous ink drum freely rotatable. A multistage paper feeding device includes a plurality of paper stacking portions and capable of feeding papers of particular size from each paper stacking portion. At least one pair of side fences are mounted on each paper stocking portion for positioning the papers in the widthwise direction of the papers. A rack is positioned to stack the papers or printings each carrying a printed image thereon. An ink drum shifting device shifts the ink drum in the widthwise direction of the papers perpendicular to the direction of conveyance of the papers. A rack shifting device shifts the rack in the widthwise direction of the papers. A storing device stores the position of a center line of a paper transport path for each of the paper stocking portions.

Abstract: To provide a stencil printer equipped with a carriage capable of stably and definitely conducting a leading end of a stencil sheet from a position at an outlet of a stencil sheet perforation device to a stencil sheet leading end mounting device of a printing drum and also capable of braking the stencil sheet so that the stencil sheet is wound around the printing drum according to its rotation under any optimum controlled expansion applied thereto, the carriage is provided with a stencil sheet leading end clamping device and a pair of stencil sheet leading end feeding rollers, separately, the stencil sheet leading end clamping device clamping the leading end of the stencil sheet when the carriage moves from the position at the outlet of the stencil sheet perforation device to the stencil sheet leading end mounting device of the printing drum, while the stencil sheet leading end feeding roller pair feeding out the stencil sheet leading end toward the stencil sheet leading end mounting device of the printing dru

Abstract: When a stencil sheet (M) is wound around an outer peripheral surface of a rotary cylindrical drum (24) in accordance with a rotation thereof, a leading end of the stencil sheet (M) is retained by a clamp plate (51) provided on the rotary cylindrical drum (24), and the stencil sheet (M) is conveyed while being guided by upper and lower guide plates (45, 46) and nipped between the lower guide plate (46) and a supporting member (48) attached to an underside of a swinging member (47). At this stage, predetermined tension is applied to the stencil sheet (M) by an urging force of the swinging member (47) to thereby prevent occurrence of wrinkles on the stencil sheet (M).

Abstract: The printing machine is designed to print different polygraphic matter without replacement of the printing form upon transition from printing one publication to another. The machine includes a printing form in the form of a mesh, and operates by filling all of the mesh cells with ink and forcing the ink through selected mesh cells by the light-hydraulic effect, which is to heat part of the ink volume in a cell with a laser beam pulse which in turn ejects all of the ink from the cell toward a receiving medium.

Abstract: Rotary screen-printing device for printing a substrate, includes at least one printing station for a removable stencil, a printing-medium feed and a squeegee, substrate-conveying means for guiding a substrate past the printing station, first and second stencil-bearing means for supporting opposite ends of the stencil, and first and second support means for supporting opposite ends parts of the squeegee. The second support means includes a moveable support member which can move between a position in which it supports the squeegee and a position in which it does not support the squeegee. The first support means being designed in such a manner that it is able to hold the squeegee in a floating position if the support member of the second support means is in the non-supporting position. The first support means includes a support member and a delimiting member.

Abstract: An apparatus and method for decorating cylindrical articles using direct rotary screen printing of a UV radiation curable composition in various predetermined patterns and registrations. A rotary screen printing assembly is arranged in either a horizontal or vertical orientation to achieve production rates of about at least 250 articles per minute, and up to 1000 articles per minute. The UV radiation curable compositions are at least partially cured between a plurality of screen printing workstations using a UV radiation source.

Abstract: A stencil printing machine includes a thermal head for perforating a stencil sheet; a platen roller situated adjacent to the thermal head, the platen roller conveying the stencil sheet in a predetermined direction while holding the stencil sheet in contact with the thermal head; a printing drum situated near the thermal head and the platen roller, the printing drum being adapted to receive the stencil sheet perforated by the thermal head and the platen roller; and a discharging member situated near the platen roller on a downstream side of the predetermined direction relative to the thermal head and the platen roller, the discharging member discharging static electricity charged on the stencil sheet.

Abstract: In a printer including a plurality of print drums sequentially arranged in a direction of sheet conveyance, a member causative of noticeable variation in load during printing is driven by a driveline assigned to one print drum that is connected to a main drive source. The printer reduces synchronization errors between the print drums ascribable to variation in load and therefore reduces offset ghosts while making the most of the advantages of a timing belt type drive system.

Abstract: According to the stencil printing machine of the present invention, ink that has entered the gap between a circumferential wall and a stencil sheet is allowed to escape to the outsides of an inner pressing roll in the axis direction. When it reaches the outer circumferential face of an ink free passage section of a screen, the escape ink is allowed to pass through the ink free passage section by a pressing force from the pressure drum, and directed to the inner circumferential side; therefore, it is possible to prevent the escape ink from reaching the right and left ends of the stencil sheet, and consequently to eliminate the limitation to the number of prints in endurance printing processes that is imposed due to ink leakage from the stencil. Moreover, since it is not necessary to form a raised portion along the circumferential face, the printing drum can be easily manufactured at low costs.