Examples include a printing unit having a first tool-dependent printing nip formed by a pair of cooperating rotational bodies. The printing unit includes, along a transport path, downstream from the first tool-dependent printing nip, a first alignment cylinder and a first non-impact printing position to which at least one first print head is assigned. The printing unit further includes, along the transport path, downstream from the first non-impact printing position, a first curing device having a first curing area assigned thereto. The printing unit, downstream from the at least one first alignment cylinder, including at least one second alignment cylinder and a second non-impact printing position, to which a second print head is assigned. The printing unit, downstream from the second non-impact printing position, comprising a second curing device having a second curing area assigned thereto.

Examples include a printing unit, which has at least one first tool-dependent printing nip formed by a pair of cooperating rotational bodies. The printing unit includes, downstream from the first tool-dependent printing nip, along a transport path provided for a transport of substrate, at least one first alignment cylinder and at least one first non-impact printing position, to which at least one first print head is assigned. The printing unit further includes, downstream from the first non-impact printing position, along the transport path provided for the transport of substrate, at least one first curing device having a first curing area assigned thereto. Additionally, in the region of the first non-impact printing position, the transport path provided for the transport of substrate is defined by the first alignment cylinder or a rotational transport body arranged directly upstream from the first alignment cylinder.

In an example, a printer ink dryer unit comprises at least one ultraviolet light source to dry a printer ink layer by causing evaporation of a solvent fluid therefrom.

A method and a device are provided for measuring the contamination of a transparent covering of a plate having LED emitters which are cooled individually or in groups by cooling units. The temperatures of the individual or grouped cooling units are measured and conclusions about contamination are drawn from a comparison of the temperatures with one another. An inkjet printing machine and an offset printing press having the device are also provided.

An ink curing apparatus (1) comprising a UV lamp (9); at least two reflectors (5, 7); and at least one continuously moveable shutter (11a, 11b), wherein the movement of the or each shutter (11a, 11b), between an open position exposing a substrate to UV radiation from the UV lamp (9) and a closed position wherein the shutter (11a, 11b) shields the substrate from the UV radiation from the UV lamp, is controlled by a crank mechanism (20, 21, 22, 24, 25, 26).

A multi-optical-color optically-variable printing device having: a conveying unit; a screen printing unit, configured to printing an ink or a varnish containing a magnetic substance on a printing stock; and a plurality of optical-color optically-variable pattern forming units. Each optical-color optically-variable pattern forming unit comprises: magnetizing rollers, magnetic orientation components being arranged on each magnetizing roller and configured to performing magnetic orientation on the printing stock; and pre-drying and curing devices, configured to pre-drying and curing the printing stock, each pre-drying and curing device comprising optical mask curing devices, the optical mask curing device being fixedly arranged and configured to projecting dynamically refreshable variable optical field image-text, and the variable optical field image-text and the printing stock synchronously moving a predetermined distance.

A sheet embellishing system performs embellishment on a sheet while conveying the sheet. The sheet embellishing system includes a varnish-applying unit that applies varnish having ultraviolet (UV) curability onto the sheet, a UV irradiation unit that irradiates the varnish on the sheet by UV rays, and a control device. The control device acquires, from a storage unit that stores adhesivity-related information that is information relating to adhesivity between the varnish on the sheet and a transfer material that is to be transferred into the varnish on the sheet, and a value regarding a control item of the sheet embellishing system, in a correlated manner, a value of the control item of which the adhesivity-related information corresponds to the adhesivity-related information of a current job, and executes predetermined processing using the value of the control item that is acquired.

The present invention provides an industrial printing apparatus for packaging roll material/substrates. The apparatus may include a water-based coating device, a UV treatment device, and a UV embellishment device. The apparatus may comprise an unwinding mechanism capable of receiving and unwinding a roll material/substrate; a rewind mechanism capable of providing roll to roll transmission of the material/substrate; a roll lift mechanism; a material webguide for retaining the roll material/substrate perfectly straight and inline; a servo tension control infeed; a corona treater; a servo tension control pull drive nip roller; at least one print station; at least one dryer; at least one drop-in unit capable of providing printing features including UV spot print/varnish, cold foil, cast and cure, textile effects and combinations thereof; and a servo outfeed nip roller. The apparatus increases efficiencies for printing packaging for edible food and beverage products on a large scale while saving significant operating time.