Patent ID: 9057989
Filing Date: 2015-06-16
Classification: G03G

Abstract:
1. A method to operate a digital printer for double-side printing to a recording medium with toner particles that are applied with aid of a liquid developer, comprising the steps of: providing the digital printer with at least one print group and printing first and second sides of the recording medium in succession; providing the liquid developer with toner particles, carrier fluid, and a charge control substance; reducing electrophoretic mobility of toner particles of a first toner image on the first side after application of said first toner image on the first side of the recording medium and before application of a second toner image on the second side of the recording medium, said electrophoretic mobility being reduced by drying the first toner image along a drying route in an air flow generated by a blower such that carrier fluid is thus removed from the first toner image but without fixing the first toner image to the recording medium, the air flow being heated by a heating device to a predetermined temperature; and after the application of the second toner image on the second side of the recording medium, both the first and the second toner images are simultaneously fixed, wherein the toner particles are fused and permanently bonded with the recording medium.