Abstract: An installation for coating the surface of a web of material with a paste. A printing screen has a doctor blade lying within for applying the print paste through holes in the printing screen onto the web. A counter roll cooperates with an electromagnet to producing a controllable level of contact pressure of the doctor blade against the printing screen. The roll body of the counter roll is provided with a coating that has piezoelectric elements and is divided into sections specific to the width, each section being individually controllable. This permits dynamic control of the application of paste over the width of the web.

Abstract: The invention relates to an impression cylinder (1) intended for a sheet-fed machine and having at least one cylinder gap (3) in which sheet grippers (4) are arranged in such a manner that, when closed, they do not project over the envelope of the peripheral area of the impression cylinder (1). The cylinder gap (3) is provided with a cover (7) which can be adjusted by a controlling unit (9, 10, 11, 12) and is subsequently always in its closed position in which it completely covers the cylinder gap (3), when said gap (3) passes through the nip. Consequently, the impression cylinder rolls with a continuous, closed peripheral area on the cylinder printing the image. In the zones where the sheet is transferred to and from the impression cylinder (1), the cover (7) (preferably controlled by a fixed cam (11) while the cylinder is rotating) is opened to such an extent that the sheet grippers (4) can move into the open position thereof to pick up or release a sheet.

Abstract: In a stencil printer including a rotatable drum for wrapping a perforated stencil or master therearound, a pair o f inclined tension rollers are movable into and out of contact with the drum in order to smooth a creased master. The distance between the tension rollers sequentially increases from the upstream side toward the downstream side with respect to an intended direction of master transport. While the master is sequentially wrapped around the drum, the tension rollers pull the opposite side edges of the master outward. At the same time, the elastic member presses the intermediate portion of the master. The tension rollers and elastic member cooperate to smooth the master. The elastic member is located at a position not closer to the drum than a position around a line connecting the points of the tension rollers contacting the master, and where it can contact the intermediate portion of the master.

Abstract: A stencil printer of the present invention includes a print drum and a pressing member. After a cut stencil or master has been wrapped around the print drum, the pressing member presses a paper or similar recording medium against the master. As a result, ink fed to the print drum oozes out to the paper and prints a desired image thereon. When the pressing member presses the paper against the master, an electric field is formed between the pressing member and the print drum in the direction in which the ink migrates from the drum to the paper. The printer is capable of adjusting image density without varying a mechanical pressure to act on the drum or varying the print speed.

Abstract: A printing machine comprises a printing drum rotationally driven around a central axis of itself. The drum has a cylindrical circumferential wall with an ink-permeable image area and an ink supplying device disposed to an inside of the circumferential wall for supplying ink to an inner surface of the circumferential wall. The machine also comprises a rotatable press roller vertically movably disposed below the drum and for sandwiching a printing body between the drum and the press roller. The machine also comprises a first supporting roller and a second supporting roller. The first supporting roller is disposed before the press roller in a printing body conveyance direction. The second supporting roller is disposed after the press roller in the printing body conveyance direction. Both the first and the second rollers are vertically movable in synchronization with a vertical movement of the press roller and supporting the printing body to be movable in the printing body conveyance direction.

Abstract: In a stencil sheet clamping construction for clamping a leading end portion of a stencil sheet to a stencil printing drum, a press plate is set at a half open position making an acute angle against an upper surface of a base portion when the leading end portion of the stencil sheet is mounted. This allows the leading end portion of the stencil sheet to be lifted above the upper surface of the base portion by floating up of an elastic film belt when the stencil sheet is discharged. This also prevents obstruction of the smooth advance of the leading end portion of the stencil when it is mounted due to the floating up of the elastic film belt.

Abstract: A stencil base sheet includes a thermoplastic resin film, with a surface of the stencil base sheet on the side of the thermoplastic resin film having a surface smoothness of at least 6000 seconds. From this stencil base sheet, a printing master is prepared by use of a heat-emitting resistor with the application of electric signals thereto with pulse modulation corresponding to image recording density, thereby forming perforations of a different size corresponding to recording image density in the stencil base sheet by thermal fusing. Furthermore, a monochrome or multi-color stencil printing is performed by using the printing master.

Abstract: A stencil printing drum includes a cylindrical circumferential wall which includes an ink permeable area and an ink impermeable area surrounding the ink permeable area. The wall is wrapped with a perforated stencil sheet and driven to rotate around a central axis of itself. The drum also includes an ink supply roller provided inside the wall for supplying ink to an inner surface of the wall. The roller presses ink outwardly from the ink permeable area to pass through a perforated area of the stencil sheet wrapped around the wall for printing. The drum also includes an ink impermeable projection. The projection is provided on a rear end portion of the ink permeable area in a rotating direction of the wall along one of the generatrices of the cylindrical wall. The projection projects inside the cylindrical wall, thereby dividing the ink permeable area and the ink impermeable area.

Abstract: A drum and an ink holding member for a stencil printer and capable of obviating offset effectively, and a stencil highly resistive to printing are disclosed. The ink holding member constitutes the outer periphery of the drum and allows the stencil or master to be wrapped therearound. The ink holding member is implemented as a sintered sheet of fibers. At least the surfaces of the fibers are constituted by metal.

Abstract: A printing drum supporting device for a stencil printing machine comprises a forward side-plate and a rear side-plate disposed at a certain distance therebetween, a frame for supporting the drum, a rail device disposed between the two side-plates for guiding the frame, and a pipe disposed between the two side-plates. The frame includes a forward plate and a rear plate disposed at a certain distance therebetween. The rear plate has a hole. The frame supports a rotatable cylindrical printing drum between the forward plate and the rear plate. The frame is detachably supported by the rail device. The frame can slide along the rail device between a printing position inside the two side-plates and a disengagement position outside the same. The pipe is fixed between the two side-plates. An end portion of the pipe is protruding outside through the rear side-plate.

Abstract: A printing drum of a stencil printing machine is formed of a base member having two annular members spaced apart from each other and a transverse bar connecting the two annular members; a flexible multi-porous sheet having a filled portion at at least a part of a peripheral portion except a central portion thereof and being wrapped into a cylindrical shape around the outer peripheral surface of the base member, and around which a stencil sheet is wrapped; a spring member situated between one end of the flexible sheet and the base member to attach the flexible sheet resiliently on the base member; a stencil clamping device provided on the transverse bar for selectively clamping one end part of the stencil sheet; and an inner pressing device situated inside the flexible sheet for supplying ink outwardly. The inner pressing device pushes the flexible sheet radially outwardly when the base member and flexible sheet assembly rotates.

Abstract: The disclosed printing apparatus is includes an ink-permeable cylindrical printing drum which is rotated about an axis of rotation thereof with a heat-sensitive stencil sheet wound around the circumferential surface thereof; a liquid ejector which ejects a photothermal conversion material contained in a liquid to the heat-sensitive stencil sheet in accordance with image information, so that the photothermal conversion material is transferred to the stencil sheet as a reproduction of the image; a light which radiates a visible or infrared ray to the stencil sheet to which the photothermal conversion material has been transferred, such that the stencil sheet is perforated by heat emitted by the photothermal conversion material; and a presser which presses at least either the printing drum or printing sheet that is being moved in synchrony with the rotation of the printing drum, bringing the drum and printing sheet into close contact with each other, such that the stencil printing ink that is fed into the printi

Abstract: A drum, stencil and ink holding member for a stencil printer are disclosed. The stencil is made up of a porous substrate and a thermoplastic resin film. The side of the substrate contacting the film has a surface roughness of 5 .mu.m Rz to 45 .mu.m Rz, preferably 5 .mu.m Rz to 35 .mu.m Rz or more preferably 5 .mu.m Rz to 25 .mu.m Rz.

Abstract: A print image treatment device is formed of a supply device for holding an excess ink removing liquid, the excessive ink removing liquid not dissolving in a printing ink forming a print image and having a lower surface tension than that of the printing ink; a rotating contact member having an outer surface, on which the excessive ink removing liquid is supplied from the supply device; a facing member situated under the contact member for nipping and carrying a printing sheet between the contact member and the facing member, an excessive printing ink forming the print image on a printing sheet being transferred to the excessive printing ink removing liquid when the printing sheet contacts the contacting member; a cleaning device contacting the contact member for removing the excessive printing ink with the excessive ink removing liquid; and a separation device receiving the excessive ink removing liquid with the excessive printing ink.

Abstract: In a printer using a stencil, a drum and a stencil feed and discharge unit are constructed integrally with each other. Hence, a stencil can be fed, cut by a thermal head, wrapped around the drum, and then discharged without being cut off. Even a stencil substantially implemented by a thermoplastic resin film, which is thin and soft, can be transported without being creased or otherwise deformed.

Abstract: The several screen frames of a multistation screen printing machine, such as a carousel screen printer, having multiple work supports movable to the printer stations in succession to effect successive printing of screen images on work pieces fixed to the supports are precisely registered with the work supports by providing each frame with registration means precisely located relative to the screen image on the frame, providing a selected work support with registration means precisely located relative to the printing position of a work piece on the selected support, effecting movement of the selected work support to the print stations in succession, adjusting the corresponding screen frame to directly align its registration means with the registration means on the selected work support, and securing the frame in fixed position.

Abstract: A screen printing press is provided for printing on a web having defined, successive areas and indicia provided in predetermined positions relative to each of the defined areas. The press includes a base defining a work station, a screen supported on the base for movement between a printing position overlying the work station and an interrupted position, and a web handling assembly for advancing the web along a path of travel to successively feed the defined areas of the web toward the work station. A registration system successively positions the defined areas of the web in a desired predetermined relationship to the screen as successive defined areas are brought into a position to be printed. The registration system includes longitudinal, lateral and angular shifting mechanisms for adjusting the longitudinal, lateral and angular alignment between the screen and the web.

Abstract: During the production of a half-tone stencil, a stencil pattern hole structure is engraved in a predetermined stencil pattern area of a basic stencil element in order to form a stencil pattern. A plurality of uniform reference hole structures having different degrees of permeability are formed on the basic stencil element outside the stencil pattern area. These reference hole structures are used during the subsequent printing for producing printing patterns used for assessing the quality of color fidelity of a stencil pattern print.

Abstract: A cylindrical stamp is capable of simply forming a stamp pattern inexpensively. The stamp device includes a ring-like member, an ink impregnated body provided around an outer periphery of the ring-like member and a perforated stencil provided around an outer periphery of the ink impregnated body. The stencil includes a stamp pattern having a portion permitting ink to permeate and a portion prohibiting ink from permeating. A pair of end caps secure the edges of the stencil to securely hold it in place and prevent ink seepage. The end caps easily snap into the ring-like member and provide a pair of axial shafts to assist in rotation.

Abstract: In an ink blocking member for a rotary stencil printing machine in which a printing drum has a printing region which is ink-permeable and a non-printing region which is not ink-permeable, for closing a part of the printing region, the ink blocking member is provided on the outer surface of the rear part of the printing region as viewed in the direction of rotation of the printing drum. The ink blocking member defines a space on the outer surface of the printing region of the printing drum which is opened in the direction of rotation of the printing drum, and which is communicated through the printing region with the inside of the printing drum. The ink blocking member is restorable in configuration to maintain the space constant in volume.

Abstract: A printed image after-processing apparatus includes a rotatable contact member coated with an excess ink removing liquid incompatible with a printing ink forming a printed image on a printing sheet and having a surface tension lower than that of the printing ink; a counter member having a surface roughness of 0.5 .mu.m or less, for feeding the printing sheet after printed between the counter member and the contact member to thereby make a printed surface of the printing sheet into contact with the contact member; a supplying device for supplying the excess ink removing liquid to the contact member; and a cleaning device contacting with the contact member.

Abstract: A stencil printing machine in which a rolled stencil is cut for obtaining a printing stencil of a printing image, the stencil printing machine includes: printing-stencil making section including a thermal head and a platen roller, for making the printing stencil from the rolled stencil held and conveyed by the thermal head and the platen roller; a cutter for cutting the rolled stencil to obtain the printing stencil; and controller for controlling the platen roller such that the front end portion of the rolled stencil separated from the printing stencil by the cutter is moved a predetermined distance backwardly, towards the printing-stencil making section, and then moved forwardly beyond the cutter to a predetermined position.

Abstract: A stencil discharging apparatus for a stencil printing machine in which a stencil is used, the stencil discharging apparatus includes: a conveyer for conveying the stencil to be discharged; a used-stencil accommodating section having an opening and a stencil accommodating space in which the stencil conveyed by the conveyer is accommodated; and a compressing board pivotally provided, wherein the compressing board presses the stencil accommodated in the stencil accommodating space toward the opposite of the opening of the used-stencil accommodating section in accordance with moving the compressing board in the stencil accommodating space.

Abstract: In a stencil printer, a drum support structure has a drum unit including a handle. The handle can be raised when released from a drum support member mounted on the printer or can be folded down when coupled with the drum support member. Therefore, the structure miniaturizes the printer with a simple configuration. Further, the structure allows a drum of the drum unit to move stably when the drum unit is moved into and out of the printer, thereby protecting a master wrapped around the drum from damage.

Abstract: A printed image after-processing apparatus is formed of a contact member which is coated with an excess ink removing solution which is incompatible with the printing ink forming a printed image and has a lower surface tension than the printing ink, and driven to rotate the contact member having coefficient of dynamic friction with 1.5 or less; a counter member holding to convey printed paper between it and the contact member, to thereby bring the printed surface of the printed paper into contact with the excess ink removing solution on the contact surface: a supplying device for supplying the excess ink removing solution to the contact member; and a cleaning device which contacts the contact member.

Abstract: A stencil printing screen body includes an ink-previous printing area, an ink-impervious non-printing area provided around the printing area, and a pressure sensitive adhesive area formed on the surface where the stencil sheet of non-printing area is attached and having adhesion to the stencil sheet. The stencil printing body is wrapped in a cylindrical form on peripheral surfaces of annular members, and a squeeze member is provided in the screen body for supplying ink. The stencil sheet is applied onto the screen body without leaking ink.

Abstract: Firming folds for increasing the firmness of the stencil itself are generated at a leading end of the stencil to be mounted to a cylindrical printing drum of a rotary stencil printer or a trailing end of the stencil mounted to the printing or both. To do so, a pair of rollers one of which has projections to form the folds at the stencil are provided to feed the stencil therebetween toward a stencil leading end mounting means of the printing drum positioned at a standby position.

Abstract: A stencil printer having a printing drum which is inked from the inside thereof. In order to prevent leaking out of ink from the perforated portion over the non-perforated stencil sheet leading end mounting portion of the stencil printing drum, in a construction wherein a printing drum cooperates with a back press roller or a transfer roller with a transverse bar portion of the printing drum is received in a transfer groove of the back press roller or the transfer roller, the outer circumferential length of the perforated portion of the printing drum and the traverse groove of the back press roller or the transfer roller and the relative rotation phase therebetween are so determined that the perforated portion is not laid one over the other with the transfer groove.

Abstract: A stencil printing machine having a stencil sheet composed of a resin film and a substrate and curled in one direction is formed of a perforating section for perforating the stencil sheet; a printing drum wrapped around with the stencil sheet perforated at the perforating section, and driven to rotate about the axis thereof; a conveying device for conveying the stencil sheet to the printing drum in such a manner that an edge of the stencil sheet perforated at the perforating section is substantially in parallel with one linear line of the printing drum; a clamp device for clamping the edge of the stencil sheet conveyed by the conveying device to the printing drum, on the printing drum along one linear line of the printing drum; and a stencil discharge section for removing the stencil sheet from the printing drum after printing.

Abstract: A recording apparatus is formed of a drum which is rotationally driven around a central axis of itself with a stencil sheet having a solvent-soluble resin layer wrapped around an outer circumferential surface of the drum, an ink supplying device disposed to the inside of the drum and supplying ink to an inner circumferential surface of the drum, and a solvent supplying device for selectively supplying a solvent containing a colorant to the stencil sheet, thereby conducting perforating the stencil sheet and selectively supplying the solvent to the printing paper thereby conducting recording.

Abstract: In a stencil printer, a drum has the outer periphery thereof formed by a porous sheet having passages for ink therein. The passages are each configured such that the ink entered an inlet pore is diverted from a single perpendicular to the drum at least once, and then flows out via at least one of outlet pores. The pores of the sheet are sized smaller than perforations to be formed in a stencil.

Abstract: Disclosed is a printing drum of a stencil printing machine, which includes a base member having two annular members disposed at a specific space on a common central axis and a transverse bar connecting the two annular members; a flexible multi-porous sheet wrapped into a cylindrical shape around the outer peripheral surface of the base member, and around which a stencil sheet is wrapped; a stencil clamping device provided on the transverse bar of the base member for selectively clamping one end part of the stencil sheet; an inner pressing device provided on the back side of the flexible multi-porous sheet for supplying ink outwardly from the inside of the flexible multi-porous sheet, and for radially outwardly deforming the flexible multi-porous sheet by pushing outwardly the inner peripheral surface of the flexible multi-porous sheet when the base member and flexible multi-porous sheet assembly rotates on the central axis stated above; and a frictional resistance reducing device for reducing a circumferentia

Abstract: An offset printing head includes, mounted to rotate parallel to each other and spaced from each other on a common carriage that is itself mounted to be mobile in translation on a frame, an inking roller and a blanket cylinder. As it moves to and fro, the carriage sweeps across a plate support which receives a plate and an object support which receives an object to be printed. The inking roller and/or the blanket cylinder are each driven by an individual drive system specific to it and independent of the movement of the carriage. Applications include printing machines combining an offset printing head with a silkscreen printing head.

Abstract: The carrier of the screen printing stencil is mounted onto an auxiliary frame which holds the entire structure stable in the shape of a plate. Due to specific design of the longitudinal profile bars of the frame as bendible metal profile bars which return on their own into the outstretched shape, made e.g. of a springy sheet metal, a cylinder can be shaped from the relatively stable plate at any time.

Abstract: In a stencil printing machine, when a printing drum is set at its operating position in the direction of its axis, a drum switch is turned on, and a locking piece is engaged with a groove formed in an engaging rod integral with the printing drum, so that a lock switch is also turned on. In the case where the printing drum pushed into the printing machine is not at the operating position, the drum presence/absence switch is turned on, and the locking piece is not engaged with the groove, so that the lock switch is off. In this case, the locking piece is reciprocated a predetermined distance in both directions. As a result, the locking piece is engaged with the groove of the engaging rod; that is, the printing drum is moved axially to the operating position.

Abstract: A stencil-making-type printing machine in which, even if rotary cylindrical drums having printing regions of different sizes are frequently used while being replaced with one another, the machine accurately detects when a used-stencil accommodating box is filled with used stencil, and notifies the operator. In the stencil-making-type printing machine, a CPU 200 determines the type of a rotary cylindrical drum loaded therein from output signals of dip switches 133 and 135 which are applied to it through electrical connectors 137 and 139.

Abstract: A stencil discharging apparatus in a stencil printing machine which uses a stencil paper wound on the outer cylindrical surface of a rotary cylindrical drum.

Abstract: Strap-like step portions each having a smaller external diameter than the external diameter of an ink supply roller are provided at opposite ends of the ink supply roller provided in a drum. Guide surfaces of ink dams urged by springs are brought into contact with the strap-like step portions respectively. Inclined surfaces of the ink dams are brought into contact with the strap-like step portions and side end surfaces of the strap-like step portions respectively. Ink leaked onto the strap-like step portions is led to the inclined surfaces in conjunction with the rotation of the ink supply roller and returned to the inner side of the ink supply roller. Ink is prevented from being leaked out of the ink supply range of the ink supply roller, so that a printing apparatus and sheets of printing paper are not stained with ink. The state of contact between the ink dams and the ink supply roller is kept stable. If the elastic force of the springs is changed, the state of contact can be changed.

Abstract: A stencil discharge apparatus includes two shafts mounted at a specific spacing; a plurality of rotators which are mounted in pairs on the two shafts, and rotate for gripping one end of a stencil paper to be removed from a printing drum and conveying the stencil paper thus removed; a receiving section for holding the stencil paper removed from the printing drum and conveyed by the pairs of rotators; and a different-diameter rotator mounted on both ends of at least one of the two shafts. The different-diameter rotator includes small-diameter portion having approximately the same outside diameter as the outside diameter of one rotator, and a large-diameter portion having a larger outside diameter than the small-diameter portion in order to prevent the stencil paper from going in between the different-diameter rotator and the shaft of the other rotator rotating in engagement with the one rotator.

Abstract: A stencil printing drum comprises: a rotary cylindrical drum including an ink non-passage region, an ink passage region surrounded by the ink non-passage region, and an axis around which the rotary cylindrical drum rotates; an ink supplying roller whose axis of rotation is in parallel with the axis of the rotary cylindrical drum, the ink supplying roller being brought into contact with the inner cylindrical surface of the rotary cylindrical drum to push a printing ink out of the rotary cylindrical drum through the ink passage region; and an ink non-passage strip formed along the border between the ink non-passage region and the ink passage region except the start end portion thereof as viewed in the direction of rotation of the rotary cylindrical drum, in such a manner that the ink non-passage strip protrudes radially inwardly of the rotary cylindrical drum.

Abstract: An ink container holding device for a rotary printing machine includes: a pack holder detachably receiving an ink container; a support table on which the pack holder is slidably mounted, wherein the pack holder is slidable between a connecting position where an ink discharge port of the ink container is connected to an ink suction port of an ink supplying pump and a disconnecting position where the ink discharge portion is disconnected from the ink suction port; a supporting member on which the support table is secured, the supporting member being movable between a first position inside the printing machine body and a second position outside the printing machine body; a holder set board secured to the printing machine body; and a hook lever connecting to the pack holder, wherein the hook lever moves the pack holder to the connecting position by engaging the hook lever with the holder set board in accordance with the supporting member moving to the first position.

Abstract: The rotation of the inner press roller 16 is synchronized with the rotation of the printing drum 10 by the gear train including a gear wheel 22 coaxial with the printing drum, a gear wheel 24 meshing with the gear wheel 22 and rotatably supported by an arm 26 swingable about the central axis of the printing drum, and a gear wheel 28 meshing with the gear wheel 24 and coaxially connected with the inner press roller 16 to rotate therewith and rotatably supported by an arm 18 swingable about a pivot axis Ob parallel with and distant from the central axis Oa of the printing drum. A clutch 86 is provided to apply a torque from the printing drum when driven to the arm 26 to control the biasing out operation of the inner press roller 12 against the circumferential wall 12 of the printing drum. The clutch may be replaced by the linear actuator 96. The clutch or linear actuator may be temporarily actuated stronger during a starting up of the printing operation.

Abstract: The rotation of the inner press roller 16 is synchronized with the rotation of the printing drum 10 by the gear train including a gear wheel 22 coaxial with the printing drum, a gear wheel 24 meshing with the gear wheel 22 and rotatably supported by an arm 26 swingable about the central axis of the printing drum, and a gear wheel 28 meshing with the gear wheel 24 and coaxially connected with the inner press roller 16 to rotate therewith and rotatably supported by an arm 18 swingable about a pivot axis Ob parallel with and distant from the central axis Oa of the printing drum. In the gear train, a brake 86 or 90 is provided for braking the gear wheel 28 or 24 to control the biasing out operation of the inner press roller 12 against the circumferential wall 12 of the printing drum. The braking action may be temporarily increased during a starting up of the printing operation. The distance between the axes of the gear wheels 24 and 28 may desirably be restricted not to increase beyond a predetermined distance.

Abstract: A printing drum for a rotary stencil printer having a sidewall in the form of a flexible perforated sheet. In order to allow for a bulging out deformation of the sidewall by an internal press roller to be easier and more uniform over the entire width of the printing, the flexible cylindrical body of the printing drum has its opposite side edge portions seated around the outer circumferential surfaces of a pair of annular portions (10a, 10b). The drum is constructed to have an inner circumferential length greater than the circumferential length of the outer circumferential surface of the annular portions by a predetermined amount which allows for a predetermined bulging out deformation of the flexible cylindrical body.

Abstract: A stencil printing machine including a stencil presence/absence detector for determining whether or not a stencil sheet is wound on a rotary cylindrical drum when the rotary cylindrical drum is located at a predetermined position of rotation; a memory for storing latest data on the presence or absence of the stencil sheet which is detected by the stencil presence/absence detector and a controller which, in confirmation of the presence or absence of a stencil sheet for a printing process or a stencil making process, reads the latest data from the memory and performs necessary processes according to the latest data thus read.

Abstract: To make it possible that the leading end of the stencil proceeds beyond the stencil leading end mounting device toward the stencil exhausting means in the process of exhausting the stencil even when the space required for the open/close operation of the stencil leading end mounting device for mounting the leading end of the stencil to the printing drum of the rotary stencil printer is made small, a snap-up member 84, 86 and 88 is provided adjacent inlet edge of an open/close type clamp member 76 of the stencil leading end mounting device so that the leading end 116 of the stencil released from the clamping by the clamp member 76 in the process of exhausting the stencil is snapped up to the upper side of the clamp member 76.

Abstract: A rotary stencil printing machine is formed of a cylindrical member, a clamping device formed on the cylindrical member for clamping a leading edge portion of a stencil sheet, and a back-up device provided outside the cylindrical member. The back-up device grips a printing sheet together with the cylindrical member to transfer the same. The cylindrical member includes a cylindrical peripheral surface for mounting thereon the stencil sheet; a first ink-pervious area formed on the peripheral surface on which an image forming area of the stencil sheet is disposed; at least one second ink-pervious area formed on the peripheral surface on which a trailing edge portion of the stencil sheet is disposed; and at least two first ink-impervious areas formed on the peripheral surface. The second ink-pervious area has an elongated shape continuously extending parallel to a center axis of the cylindrical member, and the ink-impervious areas sandwiches the second ink-pervious area.

Abstract: Disclosed is a mimeographic printing machine formed of a cylindrical printing drum which has an ink-previous area for passing ink from an inner peripheral surface to an outer peripheral surface, and is driven to rotate on the center axis of itself with a stencil paper wrapped around the outer peripheral surface; an ink supply device provided within the printing drum, for supplying the ink to the inner peripheral surface; a clamping device provided on the outer peripheral surface of the printing drum, for clamping on the printing drum a leading edge of the stencil paper wrapped around the outer peripheral surface; and a stencil paper holding device provided on the outer peripheral surface of the printing drum, for holding on the printing drum the leading edge of the stencil paper when the clamping device has released the stencil paper.

Abstract: A stencil discharger includes a stripping device for removing a spent stencil paper from the outer peripheral surface of a drum; a stencil holding section for holding the spent stencil paper that has been removed from the outer peripheral surface of the drum; a transport device for transporting the spent stencil paper that has been removed from the outer peripheral surface of the drum; a compression member which is openable in the direction of transport of the spent stencil paper and provided on the transport route between the transport device and the stencil holding section, to check the transport of the spent stencil paper that has been transported by the transport device; and a push-out device which opens the compression member to discharge the spent stencil paper into the stencil holding section by pushing out, from the transport device side, the spent stencil paper which has been compressed by the compression member.

Abstract: A rotary stencil printing machine includes: stencil making section for processing the stencil sheet to obtain a printing stencil; a printing drum having an outer cylindrical surface and a clamping member which clamps the front end portion of the stencil sheet thus processed by the stencil making section, the printing drum being turned with the front end portion of the stencil sheet clamped with the clamping member to wind the stencil sheet on the outer cylindrical surface thereof; a conveyer for conveying the stencil sheet, which has been processed by the stencil making section, towards the drum; a movable guide which is movable between a standby position and a holding position which are spaced away from each other in a direction perpendicular to the surface of the stencil sheet located between the stencil making section and the drum, the guide moving from the standby position to the holding position, for lengthening a stencil conveying path between the stencil forming section and the clamping member, wherein