Patent ID: 8712305
Filing Date: 2014-04-29
Classification: G03G

Abstract:
1. An apparatus for the electrographic printing or copying of an object wherein a toner is applied to a foil in accordance with the object to be printed or copied onto the foil and the toner is fixed on the foil by the application of heat, said apparatus including a hot air blower and a dryer duct having an inlet and an outlet through which the foil extends and through which the foil is movable in a longitudinal direction, the hot air blower being connected to the dryer duct for conducting the hot air through the dryer duct and directing the hot air provided by the hot air blower over the foil for heating the foil and fixing the toner on the foil, said hot air blower having a fresh air inlet and a hot air outlet connected to the dryer duct for providing hot air to the dryer duct, the inlet of the hot air blower being connected to a suction line having a fresh air intake end remote from the hot air blower which fresh air intake end is arranged, in the direction of movement of the foil, after the dryer duct in spaced relationship above the foil in close proximity of the heated foil so as to generate an intake air suction flow over the foil for cooling the toner fixed onto the foil leaving the dryer duct, the dryer duct also having a hot air outlet connected to a hot air discharge line for discharging the hot air to the ambient.