The present invention relates to a dryer for treating a moving printing web in a rotary printing press with gas, having a nozzle body. The dryer according to the invention is characterized in that the nozzle body has at least one opening for the exit of heated gas and has at least one opening for recirculating the cooled gas.

Examples relate to a drying cylinder for an image forming apparatus. The drying cylinder comprises a curved wall and a plurality of gas outlets spaced apart over the curved wall. The drying cylinder is to continuously rotate about its longitudinal axis and provide gas through the plurality of gas outlets perpendicularly onto a print medium with printing fluid deposited thereon to dry the printing fluid.

Systems are provided for a frame of an optic element of a lighting system. In one example, a baffle frame including extended exterior sidewalls and inner angled walls extending below a bottom surface of the optic element may reduce light reflecting off a workpiece and escaping outside and interior of the baffle frame.

In some examples, a transport cylinder for transporting a sheet-format substrate includes at least one channel extending on an outer surface of the transport cylinder in an axial direction. Each channel includes at least one gripper, which is supported on a shaft, for holding a substrate on the outer surface of the transport cylinder. Each channel is covered by a respective cover at the outer surface of the transport cylinder. The cover and/or a shaft supporting the at least one gripper may include a cooling unit. In some examples, a drying unit that includes the transport cylinder may further include an electron beam for curing a printing fluid on a substrate on the transport cylinder. In some examples, a printing press may include the drying unit including the transport cylinder.

A recording device includes: a recording unit configured to perform recording by liquid to a recording medium; a support unit configured to support the recording medium subjected to printing and transported in a transport direction; a drying mechanism including a heated air blower including a heat source and a blowing unit; a number of rotations detecting unit configured to detect a number of rotations of the blowing unit; and a control unit configured to control the drying mechanism. The support unit and the heated air blower are disposed sandwiching a transport path of the recording medium at a position downstream of the recording unit in the transport direction. The control unit controls the number of rotations of the blowing unit based on an output of the number of rotations detecting unit in a state in which a constant power is applied to the heat source.

A refrigeration unit (26) for a printing machine is presented. It comprises a dryer interface (28) connectable to a dryer unit (18) of the printing machine in a heat conductive manner and a print interface (30) connectable to a printing unit (14) of the printing machine in a heat conductive manner, wherein the refrigeration unit (26) is adapted to transfer heat (32, 34) from the print interface (30) to the dryer interface (28). Furthermore, a printing machine is described. It comprises a printing unit (14) adapted for printing on a web of carrier material, a dryer unit (18) being adapted for drying printed web of carrier material, and a refrigeration unit (26) as mentioned above.

A refrigeration unit (26) for a printing machine is presented. It comprises a dryer interface (28) connectable to a dryer unit (18) of the printing machine in a heat conductive manner and a print interface (30) connectable to a printing unit (14) of the printing machine in a heat conductive manner, wherein the refrigeration unit (26) is adapted to transfer heat (32, 34) from the print interface (30) to the dryer interface (28). Furthermore, a printing machine is described. It comprises a printing unit (14) adapted for printing on a web of carrier material, a dryer unit (18) being adapted for drying printed web of carrier material, and a refrigeration unit (26) as mentioned above.

A method and a device for manufacturing a base layer (3) having different degrees of hardness is disclosed. Further a workpiece with a base layer (3) manufactured by such method is disclosed.

A method for measuring the radiant exposure of energy curable inks or coatings on a printing press. The steps for measuring comprise: a) providing an ink or coating material comprising a fluorescent probe; b) transferring the ink or coating material onto a substrate using a printing process; c) exposing the ink or coating material to actinic radiation capable of initiating cure of the ink or coating material that also alters the luminescence of the probe; d) exposing the ink or coating to a first source of excitation light with wavelength and luminance capable of absorption by the fluorescent probe; and e) measuring the emitted light from the fluorescent probe by a first detector.

A machine arrangement sequentially processes sheet-like substrates with multiple different processing stations each having a substrate-guiding unit and a substrate-processing unit. At least one of the processing stations has, as a substrate-processing unit, at least one non-impact printing device which prints on the substrate. The processing station with the at least one non-impact printing device has a printing cylinder. Each non-impact printing device is arranged at the circumference of the printing cylinder. The printing cylinder is triple-sized or quadruple-sized. A double-sized or a triple-sized transfer drum, or a corresponding feed cylinder, is arranged directly upstream of this printing cylinder. Alternatively, a double-sized or a triple-sized transfer drum, or a corresponding transfer cylinder, is arranged directly downstream of this printing cylinder.