Patent ID: 8695498

Claim:
A screen printer comprising: a mask plate that is brought into contact with an upper surface of a substrate and on which a mask pattern conforming to a layout of electrodes on the substrate is formed; a squeegee that is attached to a squeegee base which reciprocally travels over an area above the mask plate in a horizontal direction, that moves in a horizontal direction along with the squeegee base while remaining in contact with the mask plate from above, and that makes sliding movement over the mask plate, thereby filling pattern holes of the mask pattern with paste raked on the mask plate; a paste feed syringe that is attached to the squeegee base so as to be swayable around an axial line downwardly extending from the squeegee base at an angle with respect to a horizontal line and within a vertical plane parallel to the direction of reciprocal movement of the squeegee base and that is configured to change its position between a paste feed attitude having an imaginary extension within the vertical plane at an oblique angle with respect to a vertical line and a storage attitude which is turned from the paste feed attitude around the axial line, wherein the paste feed syringe includes a follower disposed at a position below the axial line of the paste feed syringe; a syringe drive mechanism that drives the paste feed syringe in a horizontal direction orthogonal to the direction of reciprocal movement of the squeegee base; and a guide member having a guide surface that guides the follower of the paste feed syringe when the paste feed syringe in the paste feed attitude is driven in the horizontal direction orthogonal to the direction of reciprocal movement of the squeegee base by the syringe drive mechanism and that sways the paste feed syringe around the axial line, thereby bringing the paste feed syringe into the storage attitude, wherein the guide member projects from a surface of the squeegee base in a direction parallel to the direction of the reciprocal movement of the squeegee base.