Abstract: A printing mechanism having an engaging body that is rotatable between an engaging position, in which it retains a printing roller in a position facing a thermal printing head, and a disengaging position wherein it enables the printing roller to be removed; a reversible drive shaft rotating in one direction rotates the printing roller and rotating in the opposite direction moves the engaging body to the disengaging position, owing to a unidirectional joint that connects the drive shaft to the engaging body only when the drive shaft rotates in an opposite direction.

Abstract: A printing device is disclosed including a path for supplying thermal paper unwound from a roll to a thermal print head arranged for printing on a first side of paper, wherein a linear image sensor is arranged along the path, on a second side of paper opposite the first, transversely to an advancement direction of the paper, to detect the position of an alignment mark arranged on the paper.

Abstract: A thermal printer head and print control device capable of controlling what is printed onto a voucher, which includes a printer head and an image control sensor placed in an upper part of the printer head, and including an electronic card on a control unit and cables for connecting the image control sensor to the electronic card and the control unit.

Abstract: A printing mechanism having an engaging body that is rotatable between an engaging position, in which it retains a printing roller in a position facing a thermal printing head, and a disengaging position wherein it enables the printing roller to be removed; a reversible drive shaft rotating in one direction rotates the printing roller and rotating in the opposite direction moves the engaging body to the disengaging position, owing to a unidirectional joint that connects the drive shaft to the engaging body only when the drive shaft rotates in an opposite direction.

Abstract: A ticket printer that includes a plurality of LEDs for emitting light that is visible to a user removing a ticket, wherein the printer is able to transfer information to the exterior, using the light of the LEDs without adding further light emitting means, by means of a modulator that enables the LEDs to emit a pulsed light signal that contains information on the identity of the printer and which can be received and read by an external decoder.

Abstract: A ticket printer includes a path along which a strip of paper advances. The path terminates at a presentation outlet of a ticket separated from the strip. On the path, there is a movable deviating body that can selectively close or open an accumulating zone that branches off from the path and can receive a part of a strip that will be severed to form the ticket.