Abstract: Constant tension in the thermal printing ribbon is maintained in a loading drum placed after the thermal print head that directs the ribbon by means of a planetary pivotable support lever arm to define a loop, thereby maintaining constant tension throughout the printing stage to ensure operational quality. The printing method includes threading the thermal printing ribbon between the pivotable support lever arm and the cylindrical drum, and the mechanism retains the printing ribbon against the loading drum by a biasing force on the lever arm, the lever arm being kept in biasing mode during the printing operation.

Abstract: Incorporates means for maintaining a constant tension in the printing ribbon (3) consisting of a loading drum (9-9') placed after the thermal print head (1) that attracts the ribbon to define a loop, thereby maintaining a constant tension throughout the printing stage to ensure the quality of this operation. The printing method consists of attracting or suctioning the printing ribbon (1) against the loading drum (9-9'), using an electrostatic system that involves creating an electric field between conductors (10) placed on the loading drum (9), or a pneumatic system that involves attracting the ribbon (1) by Venturi tubes (17) located inside the loading drum (9').

Abstract: Applicable to machines having a moving carriage (4) that can move transversally with respect to the continuous band to be printed and that includes a thermal printing head (9) by which passes a thermal ribbon, from a cassette of origin (5) to a destination cassette (10), which pulls said ribbon (7), its characteristics centred on the fact that the drive motor for said ribbon (7) instead of being established on the moving carriage (4) is established on the fixed plate (3) along which the aforementioned carriage may travel, for which purpose said motor acts directly or indirectly on a roller (12) mounted on the fixed plate (3), aided by a return roller (14) to establish a transmission belt (14) which bends in its path due to a pair of auxiliary rollers (16–16?) mounted free to revolve about the carriage (4), by which bend the belt (13) is connected to a drive roller (15) that is also mounted on the carriage (4), which transmits the motion to the pulling cassette (10) by a transmission belt (20) and by a clutch

Abstract: Incorporates means for maintaining a constant tension in the printing ribbon consisting of a loading drum placed after the thermal print head that attracts the ribbon to define a loop, thereby maintaining a constant tension throughout the printing stage to ensure the quality of this operation. The printing method consists of attracting or suctioning the printing ribbon against the loading drum, using an electrostatic system that involves creating an electric field between conductors placed on the loading drum, or a pneumatic system that involves attracting the ribbon by Venturi tubes located inside the loading drum.

Abstract: A recording deice includes a cylinder (1) of heat-sensitive ink ribbon (2), a rewinding cylinder (5), and a marking header (19). The device prevents unused segments of ribbon being left between markings. The device has a moving support (6) guiding the ribbon (2) along an additional path (16), a braking mechanism (10, 11, 12, 14) for the cylinder (1). When the ribbon (2)is tractioned and the cylinder is braked, the support (6) is forced to move against the action of an elastic element (13), reducing the additional path (16). Thus, after a marking (a-b) the ribbon and the support (6) move back to (c) so that the next marking (b-d) is made immediately after the first marking (a-b). The braking mechanism, after one or more markings, are released, unrolling a length of ribbon (2) from the cylinder, then braking again, with the process repeated.

Abstract: Applicable to machines having a moving carriage (4) that can move transversally with respect to the continuous band to be printed and that includes a thermal printing head (9) by which passes a thermal ribbon, from a cassette of origin (5) to a destination cassette (10), which pulls said ribbon (7), its characteristics centred on the fact that the drive motor for said ribbon (7) instead of being established on the moving carriage (4) is established on the fixed plate (3) along which the aforementioned carriage may travel, for which purpose said motor acts directly or indirectly on a roller (12) mounted on the fixed plate (3), aided by a return roller (14) to establish a transmission belt (14) which bends in its path due to a pair of auxiliary rollers (16-16′) mounted free to revolve about the carriage (4), by which bend the belt (13) is connected to a drive roller (15) that is also mounted on the carriage (4), which transmits the motion to the pulling cassette (10) by a transmission belt (20) and by a c

Abstract: Comprises an origin cylinder (1) of heat-sensitive ink ribbon (2), a rewinding cylinder (5), traction means and at least one marking header. It prevents an unused segment of ribbon being left between markings. It is characterised by a moving support (6) in which is guided the ribbon (2) such that the ribbon follows an additional path (16). It comprises braking means (10, 11, 12, 14) for the origin cylinder (1) such that when the ribbon (2) is tractioned and as the origin cylinder is braked, the support (6) is forced to move against the action of an elastic element (13), reducing the additional path (16) such that after a marking (a-b) the ribbon moves back, and with it the support (6), due to the action of the elastic element (13) so that the next marking (b-d) is made immediately after the first.

Abstract: A traction device has an origin cylinder (1) of heat-sensitive ink ribbon (2), a rewinding cylinder (5), traction means and a marking header. The device prevents unused segments of ribbon being left between markings. The device has a moving support (6) guiding the ribbon (2) along an additional path (16), braking means (10, 11, 12, 14) for the origin cylinder (1). When the ribbon (2) is tractioned and the origin cylinder is braked, the support (6) is forced to move against the action of an elastic element (13), reducing the additional path (16). Thus, after a marking (a-b) the ribbon and the support (6) move back so that the next marking (b-d) is made immediately after the first marking (a-b). The braking means, after one or more markings, are released, unrolling a length of ribbon (2) from the origin cylinder, then braking again, with the process repeated.