In some examples, a machine for generating optically variable image elements on a substrate includes a printing substrate infeed and a printing unit including a printing mechanism by which a substrate guided on a transport path is printed with a coating agent containing magnetic or magnetizable particles. A device for aligning the magnetic or magnetizable particles includes a first alignment device in the transport path and a further alignment device arranged upstream therefrom. During normal operation, the further alignment device is fixed to a frame at the transport path. The further alignment device includes a plurality of magnets that are spaced apart from one another transversely to the transport direction and, during operation, remain stationary. The number of magnets included in the further alignment device correspond to a number of columns of image-producing print motifs or groups of image-producing print motifs around a circumference of a forme cylinder.

A recording medium for producing a recorded matter having a three-dimensional image comprises: a substrate; and a foaming layer being provided on the substrate and containing a foaming material which foams with heat and a binder resin. A contact angle of water to a surface of the foaming layer 30 seconds after the water is brought into contact with the surface of the foaming layer is 30° or more and 80° or less, and a ratio of a diameter of a water droplet 30 seconds after the water is brought into contact with the surface of the foaming layer to a diameter of the water droplet 0.01 seconds after the water is brought into contact with the surface of the foaming layer is 1.3 times or less.

A recording medium for producing a recorded matter having a three-dimensional image comprises: a substrate; and a foaming layer being provided on the substrate and containing a foaming material which foams with heat and a binder resin. A contact angle of water to a surface of the foaming layer 30 seconds after the water is brought into contact with the surface of the foaming layer is 30° or more and 80° or less, and a ratio of a diameter of a water droplet 30 seconds after the water is brought into contact with the surface of the foaming layer to a diameter of the water droplet 0.01 seconds after the water is brought into contact with the surface of the foaming layer is 1.3 times or less.

A thermosetting unit, in particular for a textile printer, includes a pair of stationary supports, a thermosetting roller extending between said stationary supports and rotatably carried by said stationary supports around a longitudinal axis thereof, a stationary infrared lamp extending inside said thermosetting roller and having opposite ends supported by said stationary supports, and a temperature-uniforming device housed inside the thermosetting roller.

Power allocation in printing devices is disclosed. A first load request is received from a first heater system having a first thermal time constant and a second load request is received from a second heater system having a second thermal time constant. Power grants are allocated based on a general power arbitration of a power source in response to the independent load requests. The power grants include a first power grant based on the first load request and a second power grant based on the second load request. The power grants are adjusted to apportion a measure of the first power grant to the second power grant rather than provide the measure of the first power grant to the first heater system if a print substance density is within a selected print substance density threshold and the first load request is within a selected load threshold.

A curing station for curing printing ink of a direct print on containers, comprising a conveyor for conveying the containers preferably in container holders, and further comprising at least one UV light unit for curing the printing ink, characterized in that the at least one UV light unit comprises a 2D arrangement of UV LEDs for generating a UV light field for curing the printing ink.

The disclosure relates to a light irradiation device which can improve curability of photo-curable materials. A light irradiation device includes a first supply section having a porous portion, the first supply section being capable of supplying a gas to a photo-curable material through the porous portion; and an irradiation section disposed in alignment with the porous portion or disposed downstream from the porous portion, the irradiation section being capable of irradiating the photo-curable material with light.

The disclosure relates to a light irradiation device which can improve curability of photo-curable materials. A light irradiation device includes a first supply section having a porous portion, the first supply section being capable of supplying a gas to a photo-curable material through the porous portion; and an irradiation section disposed in alignment with the porous portion or disposed downstream from the porous portion, the irradiation section being capable of irradiating the photo-curable material with light.

Methods and systems of actively cooling a card while the card is within a card processing machine are described. One or more cooling stations are provided within the card processing machine to actively cool the card prior to performing a processing operation, during a processing operation, and/or after a processing operation on the card in order to reduce a temperature of the surface of the card.

An example of a print system including a dryer to dry a sheet of paper. The print system includes a media feeder to feed the sheet of paper into the dryer and a controller to vary a speed of the media feeder. The print system includes a communication interface to receive data associated with an image to print on the sheet of paper and a processor. The processor is coupled to the controller and the communication interface. The processor is to determine a first density index for a first portion of the image and to determine a second density index for a second portion of the image. The processor is to adjust the speed of the media feeder via the controller based on the first density index and the second density index.