In a first image formation mode, an image is formed with a first development contrast C1 and a specific dot pattern is formed with a second development contrast C2, which is lower than the first development contrast C1; in a second image formation mode, an image is formed with a third development contrast C3 and a specific dot pattern is formed with a fourth development contrast C4, which is lower than the third development contrast C3; and when C1 (=C2/C1) denotes a ratio between the second development contrast C2 and the first development contrast C1, and C2 (=C4/C3) denotes a ratio between the fourth development contrast C4 and the third development contrast C3, C2<C1 is satisfied.

A printing press for digital printing on three-dimensional objects includes a plurality of printing stations arranged in a specified radian on an outer peripheral edge of a press wheel. Each one of the printing stations includes an inkjet print head for digital printing on three-dimensional objects and a rotary table for holding the three-dimensional object. A printing unit prints on the three-dimensional object by separate printing of a mark or a logo executed as a pad print. The printing unit includes a mechanical feed unit and a plurality of pads successively arranged on a rotating wheel. The pads and the surfaces of the printed three-dimensional objects held in the printing stations are held in the same radian and move at the same circumferential speed so that the pads print on the three-dimensional objects by means of a tampograph.

A printing press for digital printing on three-dimensional objects includes a plurality of printing stations arranged in a specified radian on an outer peripheral edge of a press wheel. Each one of the printing stations includes an inkjet print head for digital printing on three-dimensional objects and a rotary table for holding the three-dimensional object. A printing unit prints on the three-dimensional object by separate printing of a mark or a logo executed as a pad print. The printing unit includes a mechanical feed unit and a plurality of pads successively arranged on a rotating wheel. The pads and the surfaces of the printed three-dimensional objects held in the printing stations are held in the same radian and move at the same circumferential speed so that the pads print on the three-dimensional objects by means of a tampograph.

A laser printhead assembly for a laser printhead is disclosed herein. The laser printhead assembly may include a laser containment door; and a laser containment housing that is configured to form a sealed enclosure with a label support of a label. The sealed enclosure may be configured to include the label and the laser printhead. The laser containment door, in a laser-enabled position, may be configured to permit the laser printhead, via a light beam, to modify the label and the laser containment door, in a laser-disabled position, may be configured to prevent a light beam from escaping the laser containment housing.

A laser printhead assembly for a laser printhead is disclosed herein. The laser printhead assembly may include a laser containment door; and a laser containment housing that is configured to form a sealed enclosure with a label support of a label. The sealed enclosure may be configured to include the label and the laser printhead. The laser containment door, in a laser-enabled position, may be configured to permit the laser printhead, via a light beam, to modify the label and the laser containment door, in a laser-disabled position, may be configured to prevent a light beam from escaping the laser containment housing.