A powder film forming method includes the steps of: filling an opening with a powder, the opening being formed in a screen plate; and forming the powder film by generating an electric potential difference between the screen plate and a substrate so as to cause the powder, which is filling the opening, to move to the substrate.

A powder film forming method includes the steps of: filling an opening with a powder, the opening being formed in a screen plate; and forming the powder film by generating an electric potential difference between the screen plate and a substrate so as to cause the powder, which is filling the opening, to move to the substrate.

The present application relates to a stencil printing machine, which comprises a first holder device (110), a mobile device (121), two support tables (131, 132) and two driving devices (151, 152), wherein the first holder device (110) is configured to be able to horizontally reciprocate in the portrait orientation, the mobile device (121) is mounted on the first holder device (110) and is configured to be able to horizontally reciprocate in the landscape orientation on the first holder device (110), the two support tables (131, 132) are mounted at the lower end of the mobile device (121) and are used to bear corresponding solder paste jars (141, 142), the two driving devices (151, 152) are mounted on the mobile device (121) so that each of the two driving devices (151, 152) is located above a corresponding support table (131, 132) and is used to press a corresponding solder paste jar (141, 142), and the mobile device (121) is configured to be able to drive the two support tables (131, 132) and the two driving devices (151, 152) to reciprocate vertically. Two standard solder paste jars (141, 142) can be assembled for the stencil printing machine provided by the present application. When one solder paste jar (141, 142) is empty, solder paste supply is switched to the other solder paste jar (141, 142) and the stencil printing machine can continue to operate without stopping, thus improving the working efficiency of the stencil printing machine significantly.

A printing machine includes a sliding carriage to provide isolation between internal volumes, to enable a print medium container to be exchanged without disrupting a print operation. Convective air flow between the volumes is maintained during normal operation.

An applicator for transferring an indicia to a substrate includes an ink layer forming the indicia. A white layer is disposed on the ink layer. An adhesive layer is disposed on the white layer. The adhesive layer is configured to adhere the ink layer and the white layer to the substrate.

An applicator for transferring an indicia to a substrate includes an ink layer forming the indicia. A white layer is disposed on the ink layer. An adhesive layer is disposed on the white layer. The adhesive layer is configured to adhere the ink layer and the white layer to the substrate.

A paste supply apparatus includes: a pot holder which holds a paste pot including an inner lid movable in a container; an ejecting member; an annular protruding portion protruding downward from a lower surface of the ejecting member; a suction power generating mechanism which generates suction power in an internal space surrounded by the annular protruding portion; and an ejecting member lifting unit which moves up and down the ejecting member, The ejecting member lifting unit causes the ejecting member to press down the inner lid of the paste pot held by the pot holder to eject the paste from the through hole, and thereafter lifts the ejecting member which holds the inner lid by the suction power generated within the internal space of the annular protruding portion by the suction power generating mechanism.

A paste supply apparatus includes: a pot holder which holds a paste pot including an inner lid movable in a container; an ejecting member; an annular protruding portion protruding downward from a lower surface of the ejecting member; a suction power generating mechanism which generates suction power in an internal space surrounded by the annular protruding portion; and an ejecting member lifting unit which moves up and down the ejecting member, The ejecting member lifting unit causes the ejecting member to press down the inner lid of the paste pot held by the pot holder to eject the paste from the through hole, and thereafter lifts the ejecting member which holds the inner lid by the suction power generated within the internal space of the annular protruding portion by the suction power generating mechanism.

A paste dispensing transfer system of a stencil printer is configured to print an assembly material on an electronic substrate. The transfer system includes a paste cartridge mechanism coupled to a print head assembly of the stencil printer, and a rotary indexing mechanism coupled to a frame of the stencil printer. The paste dispensing transfer system is configured to transfer a used paste cartridge from the print head assembly to the rotary indexing mechanism supported by the frame and to transfer a new paste cartridge from the rotary indexing mechanism to the print head assembly.

A paste dispensing transfer system of a stencil printer is configured to print an assembly material on an electronic substrate. The transfer system includes a paste cartridge mechanism coupled to a print head assembly of the stencil printer, and a rotary indexing mechanism coupled to a frame of the stencil printer. The paste dispensing transfer system is configured to transfer a used paste cartridge from the print head assembly to the rotary indexing mechanism supported by the frame and to transfer a new paste cartridge from the rotary indexing mechanism to the print head assembly.