Abstract:
A stencil printing machine has a rotatable printing drum including an outer peripheral wall of ink impermeable material. A stencil paper is mounted on the surface of the outer peripheral wall. An ink supplying mechanism includes an ink supplying unit in the outer peripheral wall of the printing drum and supplies ink to the surface of the outer peripheral wall. A pressure roller presses a fed print sheet against the outer peripheral wall. When an initial printing operation is performed after a stencil paper is mounted on the printing drum, the ink supplying mechanism is caused to supply the surface of the outer peripheral wall, in advance, with an amount of ink which is larger than an amount of ink which is supplied for second and proceeding printing operations.
Abstract:
A stencil printer of the present invention includes a print drum, an ink feeding device for feeding ink to the inside periphery of the print drum, an ink replenishing device for replenishing ink to the ink feeding device, and a controller configured to control, based on print conditions, replenishment of the ink to the ink feeding device effected by the ink replenishing device. The stencil printer with this configuration is capable of continuously operating even when the ink stored therein is degenerated.
Abstract:
A stencil printing ink container includes an ink container body. An ink charge port is provided in an end wall of the ink container body and an inner plug is mounted on the ink charge port. The inner plug is provided with an ink discharge port smaller in the outer diameter than the inner diameter of the ink charge port and gives an ink suction nozzle of an ink pump access to the ink discharge port.
Abstract:
A stencil printing machine, which includes: a drum which is freely rotatable and has an outer peripheral wall formed of an ink impermeable member, in which a stencil sheet is mounted on a surface of the outer peripheral wall; an ink supplying device which has an ink supply port on the outer peripheral wall of the drum and has an ink tank storing an ink, and supplies the ink, which is guided from the ink tank, from the ink supply port to a surface of the outer peripheral wall; an ink recovery device which has an ink recovery port on the outer peripheral wall of the drum, and recovers, from the ink recovery port, an extra ink on the surface of the outer peripheral wall; and a pressure roller which presses a print sheet fed thereto to the outer peripheral wall. The ink recovery device is configured to recover, to the ink tank, the extra ink recovered from the ink recovery port.
Abstract:
There is disclosed a stencil printing method carried out by employing a stencil printing machine comprising: a drum which is rotatable and has a outer peripheral wall formed by an ink impermeable member and in which a stencil sheet is mounted on a surface of the outer peripheral wall; an ink supply device which has an ink supply unit provided on the outer peripheral wall of the drum and supplies ink on the surface of the outer peripheral wall from the ink supply unit; and a pressure roller which presses a fed print medium onto the outer peripheral wall; the method comprising: a step of mounting a stencil sheet on the drum; a step of plate-making the stencil sheet; and a step of transferring a water-based ink to a print medium by making the water-based ink pass through perforations of the stencil sheet.
Abstract:
A container is provided which comprises a cylindrical main body having an end wall at an end thereof; an outlet projecting from an outer surface of the end wall for allowing a content to be supplied; and a protecting member disposed on the outer surface of the end wall so that it surrounds the outlet and defines a groove portion between the outlet and the protecting member. The protecting member is preferably a continuous or discontinuous annular projection. A conduit of a pump can be coupled to the groove portion by engaging an inner circumferential surface of the protecting member with an outer circumferential surface of the conduit, or by engaging an outer circumferential surface of the outlet with an inner circumferential surface of the conduit.
Abstract:
An ink bottle set-up device having a bottle set-up body 2 formed with a bottle set-up chamber 3 and a projection-guide recess formed along a direction in which an ink bottle 100 having a positioning projection 103 is inserted. An ink bottle erroneous set-up prevention mechanism 6 is located on the bottle set-up body and comprises a detecting lever 9 moveable in protruding or retracting positions and urged toward the protruding position, a slide member 12 slidable in bottle inserting or bottle discharging directions for selectively allowing the ink bottle to be inserted through the bottle set-up chamber when the positioning projection in alignment with the projection-guide recess is detected by the detecting lever, and a bottle stopper segment 14 secured to the slide member 12 and protruding into the bottle set-up chamber 3.
Abstract:
A stencil printer operable with a master wrapped around a print drum includes a rotatable print drum. An ink roller is rotatable in the same direction as the print drum for feeding ink to the inner periphery of the drum. An ink replenishing roller is rotatable in the same direction as the print drum and ink roller and movable between a first position where it is spaced from the inner periphery of the drum and ink roller and a second position where it contacts the inner periphery of the drum and ink roller. An ink collecting member is located downstream of the ink replenishing roller in the direction of rotation of the print drum and movable in interlocked relation to the ink replenishing roller. The printer is capable of surely removing excess ink from the inner periphery of the print drum and desirably forming even the first image after a long time of suspension. The ink collecting member is interlocked to the ink replenishing roller and has its edge initially spaced from the inner periphery of the print drum, so that friction between the ink collecting member and the inner periphery of the print drum is obviated. In addition, ink is prevented from being collected more than necessary. Consequently, there can be obviated noise and short image density.
Abstract:
A printing machine is provided which includes a body 1 having an opening 5, a drum support member 2 located in the body and having a head section 9 formed with an ink receptor port 8, and a turn table 11 mounted on the drum support member 2 for rotating movement and having a bottle guide to receive an ink bottle. The turn table 11 is freely rotatable between a bottle exchange position to allow an ink bottle 12 to be inserted into the bottle guide 14 through the opening 5 and a bottle receiving position to allow the ink bottle 12 set up in the bottle guide 14 to be received in an inner space of the opening 5.
Abstract:
An ink bottle set-up device having a bottle set-up body 2 formed with a bottle set-up chamber 3 and a projection-guide recess formed along a direction in which an ink bottle 100 having a positioning projection 103 is inserted. An ink bottle erroneous set-up prevention mechanism 6 is located on the bottle set-up body and comprises a detecting lever 9 moveable in protruding or retracting positions and urged toward the protruding position, a slide member 12 slidable in bottle inserting or bottle discharging directions for selectively allowing the ink bottle to be inserted through the bottle set-up chamber when the positioning projection in alignment with the projection-guide recess is detected by the detecting lever, and a bottle stopper segment 14 secured to the slide member 12 and protruding into the bottle set-up chamber 3.