A sheet gripping mechanism includes a first sheet guide including a guide surface facing a sheet conveyance path along which a sheet is to be conveyed and a second sheet guide which faces the first sheet guide across the sheet conveyance path. The second sheet guide includes a protuberance extending toward the first sheet guide, to locations beyond the guide surface formed by the first sheet guide. When a sheet is located between the first sheet guide and the protuberance of the second sheet guide, the protuberance extends at least a portion of the sheet toward the first sheet guide to bring a part of a surface of the sheet into contact with the first sheet guide.

A sheet gripping mechanism includes a first sheet guide including a guide surface facing a sheet conveyance path along which a sheet is to be conveyed and a second sheet guide which faces the first sheet guide across the sheet conveyance path. The second sheet guide includes a protuberance extending toward the first sheet guide, to locations beyond the guide surface formed by the first sheet guide. When a sheet is located between the first sheet guide and the protuberance of the second sheet guide, the protuberance extends at least a portion of the sheet toward the first sheet guide to bring a part of a surface of the sheet into contact with the first sheet guide.

Machinery and techniques are disclosed for applying treatment processes to surfaces of objects arranged in a form of an array of objects, and for inspecting surface areas of the objects in such object arrays before and/or after applying the surface treatment processes thereto.

Machinery and techniques are disclosed for applying treatment processes to surfaces of objects arranged in a form of an array of objects, and for inspecting surface areas of the objects in such object arrays before and/or after applying the surface treatment processes thereto.

The invention relates to a sheet-fed printing press having a feeder, a delivery, and at least one sheet guiding cylinder, which is arranged between the feeder and the delivery, has a gripper system, and is assigned a digital printing system and a first sheet guiding system that removes sheets from the sheet guiding cylinder. The object of the invention is to devise a sheet-fed printing press that can be used in a more variable fashion, and with which a particularly wide spectrum of different products can be produced. According to the invention, the object is attained in that the first sheet guiding system (12) is configured for selectively transferring the sheets to a second sheet guiding system (8), which transfers the sheets to the sheet guiding cylinder (3), or for transferring said sheets to the delivery (11), wherein the second sheet guiding system (8) is configured as a perfecting system (8) and can be switched between an operating mode in which it feeds the sheets in a reversed position to the sheet guiding cylinder (3) and an operating mode in which it feeds the sheets in a non-reversed position to the sheet guiding cylinder.

The invention relates to a sheet-fed printing press having a feeder, a delivery, and at least one sheet guiding cylinder, which is arranged between the feeder and the delivery, has a gripper system, and is assigned a digital printing system and a first sheet guiding system that removes sheets from the sheet guiding cylinder. The object of the invention is to devise a sheet-fed printing press that can be used in a more variable fashion, and with which a particularly wide spectrum of different products can be produced. According to the invention, the object is attained in that the first sheet guiding system (12) is configured for selectively transferring the sheets to a second sheet guiding system (8), which transfers the sheets to the sheet guiding cylinder (3), or for transferring said sheets to the delivery (11), wherein the second sheet guiding system (8) is configured as a perfecting system (8) and can be switched between an operating mode in which it feeds the sheets in a reversed position to the sheet guiding cylinder (3) and an operating mode in which it feeds the sheets in a non-reversed position to the sheet guiding cylinder.

A printing system is provided for printing on an object having a curved surface. The printing system comprises: a support assembly for supporting an object having the curved surface to be printed on, said support assembly comprising a gripper configured for holding the object thereon at a predetermined working distance between the curved surface of the object and a printing head unit, said gripper being configured and operable for varying its cross-sectional dimension so as to maintain said working distance for the objects of different dimensions.

A printing system is provided for printing on an object having a curved surface. The printing system comprises: a support assembly for supporting an object having the curved surface to be printed on, said support assembly comprising a gripper configured for holding the object thereon at a predetermined working distance between the curved surface of the object and a printing head unit, said gripper being configured and operable for varying its cross-sectional dimension so as to maintain said working distance for the objects of different dimensions.

A sheet gripping mechanism includes a first sheet guide including a guide surface facing a sheet conveyance path along which a sheet is to be conveyed and a second sheet guide which faces the first sheet guide across the sheet conveyance path. The second sheet guide includes a protuberance extending toward the first sheet guide, to locations beyond the guide surface formed by the first sheet guide. When a sheet is located between the first sheet guide and the protuberance of the second sheet guide, the protuberance extends at least a portion of the sheet toward the first sheet guide to bring a part of a surface of the sheet into contact with the first sheet guide.

A sheet gripping mechanism includes a first sheet guide including a guide surface facing a sheet conveyance path along which a sheet is to be conveyed and a second sheet guide which faces the first sheet guide across the sheet conveyance path. The second sheet guide includes a protuberance extending toward the first sheet guide, to locations beyond the guide surface formed by the first sheet guide. When a sheet is located between the first sheet guide and the protuberance of the second sheet guide, the protuberance extends at least a portion of the sheet toward the first sheet guide to bring a part of a surface of the sheet into contact with the first sheet guide.