A dual function tooling tray for a stencil printer includes a perimeter frame, a first frame member spaced from a first side of the perimeter frame, a second frame member spaced from a second side of the perimeter frame, and a third frame member extending between and secured to the first frame member and the second frame member. The third frame member is configured to support at least one squeegee blade assembly. The tooling tray further includes a first support secured to the first frame member and a second support secured to the second frame member. The first support and the second support are configured to support a tooling plate. The tooling tray further includes a third support secured to the first frame member and a fourth support secured to the second frame member. The third support and the fourth support are configured to support a tooling plate.

A vision system is used in a stencil printer configured to print an assembly material on an electronic substrate. The vision system includes a housing, a dual camera assembly supported by the housing and a prism assembly supported by the housing and configured with the dual camera assembly to provide a first optical path that looks vertically up at a bottom of a stencil and a second optical path that looks vertically down on an electronic substrate.

A vision system is used in a stencil printer configured to print an assembly material on an electronic substrate. The vision system includes a housing, a dual camera assembly supported by the housing and a prism assembly supported by the housing and configured with the dual camera assembly to provide a first optical path that looks vertically up at a bottom of a stencil and a second optical path that looks vertically down on an electronic substrate.

A movable cart includes a housing configured to move along a horizontal surface and a plurality of shelves supported by the housing Each shelf of the plurality of shelves is configured to move between a retracted in which the shelf is positioned within the housing and an extended position in which the shelf extends from the housing. The movable cart further includes a sensing system configured to determine whether each shelf of the plurality of shelves is in the retracted position and a type of item supported by the shelf. Other aspects of the movable cart are further disclosed.

A movable cart includes a housing configured to move along a horizontal surface and a plurality of shelves supported by the housing Each shelf of the plurality of shelves is configured to move between a retracted in which the shelf is positioned within the housing and an extended position in which the shelf extends from the housing. The movable cart further includes a sensing system configured to determine whether each shelf of the plurality of shelves is in the retracted position and a type of item supported by the shelf. Other aspects of the movable cart are further disclosed.

In some examples, a screen printing unit includes a screen printing forme cylinder, an impression cylinder, and at least one further rotational transport body. A fixing element of the impression cylinder includes inner and outer contact surfaces for clamping sheets. The inner contact surface has a base radius as a distance from an axis of rotation of the impression cylinder. A cylinder barrel of the impression cylinder has a supporting surface for sheets that includes an impression portion having a constant barrel radius, which extends over at least 170 about the axis of rotation of the impression cylinder and the barrel radius is larger than the base radius. A fixing element of the further rotational transport body includes an inner and an outer contact surface for clamping sheets. The inner contact surface includes the base radius as a distance from an axis of rotation of the further rotational transport body.

A printing apparatus including: a cleaning section including a cleaning member and configured to perform cleaning processing of a screen mask used in printing of a viscous fluid onto a print target; a cleaning member moving section configured to perform at least one of moving the cleaning member to and from a cleaning position and an exchange position, and unloading and loading of the cleaning member; and an exchange control section configured to control the cleaning member moving section to perform cleaning member exchange processing of exchanging the cleaning member.

A printing apparatus including: a cleaning section including a cleaning member and configured to perform cleaning processing of a screen mask used in printing of a viscous fluid onto a print target; a cleaning member moving section configured to perform at least one of moving the cleaning member to and from a cleaning position and an exchange position, and unloading and loading of the cleaning member; and an exchange control section configured to control the cleaning member moving section to perform cleaning member exchange processing of exchanging the cleaning member.

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.

In some examples, a screen printing unit includes a screen printing forme cylinder, an impression cylinder, and a frame including two frame side walls. The screen printing unit further includes first and second base modules, each comprising two stationary base side walls that each have a one-piece design. Each base module includes four installation areas for rotational transport bodies whose positions coincide in the base modules, and the respective first and second installation areas of each base module form a respective selection group of the base module. An impression cylinder cooperating with the screen printing forme cylinder is in one of the installation areas of the selection group of the first base module, and a respective rotational transport body is arranged in each of the four installation areas of the base modules. A functionally different rotational transport body is arranged in an installation area of the first base module.