A printing device for printing substrates, such as circuit boards, wafers, or solar cells, has at least one movably mounted printing unit with a working surface on which the substrate to be printed can be placed. The printing unit is paired with a transport belt device, which has a supply roller with a transport belt wound thereon, a collection roller for winding up the transport belt, and two deflecting surfaces, in particular deflecting rollers, which are paired with the working surface. The transport belt is guided by the supply roller over one deflecting surface and onto the working surface in order to form a contact surface for the substrates, and by the working surface over the other deflecting surface to the collection roller. The deflecting surfaces can be moved together with the respective printing unit. The supply and collection rollers are held on the printing device in a stationary manner.

A printing device includes a cleaning head configured to contact a cleaning member with the screen mask to perform a cleaning process on the screen mask, a moving section connectable and disconnectable to the cleaning head to move the cleaning head between a cleaning area and a standby area, a door member configured to open and close an opening portion through which the cleaning member passes when the cleaning member is moved from the standby area to an outside of the printing device and be lockable in a closed state, and a control section configured to unlock the door member in a state where the moving section is disconnected to the cleaning head and the cleaning head is located in the standby area.

A printing device includes a cleaning head configured to contact a cleaning member with the screen mask to perform a cleaning process on the screen mask, a moving section connectable and disconnectable to the cleaning head to move the cleaning head between a cleaning area and a standby area, a door member configured to open and close an opening portion through which the cleaning member passes when the cleaning member is moved from the standby area to an outside of the printing device and be lockable in a closed state, and a control section configured to unlock the door member in a state where the moving section is disconnected to the cleaning head and the cleaning head is located in the standby area.

A cleaning device cleans a screen mask. The cleaning device includes a cleaning sheet configured to clean the screen mask; a roll-shaped supply section configured to supply the cleaning sheet; a cleaning head configured to press the cleaning sheet supplied from the supply section against a rear surface of the screen mask; a roll-shaped winding section configured to wind a used cleaning sheet; a driving section configured to drive the winding section; a moving mechanism configured to move the supply section, the cleaning head, and the winding section in the same direction as and in an opposite direction to a supply direction of the cleaning sheet; a lifting and lowering mechanism configured to lift and lower the cleaning head; and a brake mechanism configured to allow rotation of the supply section when the cleaning head is lowered by the lifting and lowering mechanism, and to restrict rotation of the supply section when the cleaning head is lifted by the lifting and lowering mechanism.

Systems and methods of removing and cleaning a stencil in a stencil printer include removing a used stencil from a stencil printer with the assistance of a movable cart, transporting the used stencil by the movable cart to a cleaning station, removing the used stencil from the movable cart, delivering the used stencil to the cleaning station, cleaning the stencil, removing a cleaned stencil from the cleaning station, and delivering the cleaned stencil to the movable cart for future use.

A screen printing apparatus includes a print head, a moving base, and a mask cleaner. The print head prints a paste onto a board through the mask. The moving base moves under the mask in a horizontal paste scraping direction. The mask cleaner is mounted to the moving base and moves under the mask integrally with the moving base, and scrapes off the paste adhering to a lower surface of the mask. A base body is mounted to the moving base and includes a longitudinal side being horizontal and intersecting the paste scraping direction. Plurality of blades are detachably mounted to the base body and extending in the longitudinal direction and are arranged side by side in parallel to the paste scraping direction and cause a paste scraping edge protruding upward from the base body to come into abutment against the lower surface of the mask.

A printing device for printing substrates, such as circuit boards, wafers, or solar cells, has at least one movably mounted printing unit with a working surface on which the substrate to be printed can be placed. The printing unit is paired with a transport belt device, which has a supply roller with a transport belt wound thereon, a collection roller for winding up the transport belt, and two deflecting surfaces, in particular deflecting rollers, which are paired with the working surface. The transport belt is guided by the supply roller over one deflecting surface and onto the working surface in order to form a contact surface for the substrates, and by the working surface over the other deflecting surface to the collection roller. The deflecting surfaces can be moved together with the respective printing unit. The supply and collection rollers are held on the printing device in a stationary manner.

Provided is a printing device prints a transfer material onto a substrate via a mask. The printing device includes a placement portion, a moving portion, a cleaning unit, and a control unit. The placement portion is where the mask is movably placed. The moving portion moves the mask placed on the placement portion. The cleaning unit removes the transfer material remaining on the back side of the mask. The control unit controls the moving portion. Upon maintenance of the cleaning unit, the control unit controls the moving portion to move the mask placed on the placement portion to a retract position.

A screen printing apparatus includes a print head, a moving base, and a mask cleaner. The print head prints a paste onto a board through the mask. The moving base moves under the mask in a horizontal paste scraping direction. The mask cleaner is mounted to the moving base and moves under the mask integrally with the moving base, and scrapes off the paste adhering to a lower surface of the mask. A base body is mounted to the moving base and includes a longitudinal side being horizontal and intersecting the paste scraping direction. Plurality of blades are detachably mounted to the base body and extending in the longitudinal direction and are arranged side by side in parallel to the paste scraping direction and cause a paste scraping edge protruding upward from the base body to come into abutment against the lower surface of the mask.

A printing screen for printing deposits of a print medium onto workpieces, the printing screen comprising a sheet in which a pattern of printing apertures are formed to allow for printing of a pattern of deposits onto a workpiece, and a waveguide which can be driven to induce an ultrasonic vibration in the sheet, wherein the waveguide comprises an elongate body at a surface of the sheet which at least partially surrounds the pattern of printing apertures.