Patent ID: 7466935

Claim:
A system for transfer printing of an electrostatically charged toner image in an electrographic printing or copying device, comprising: an intermediate carrier with an electrostatically charged toner image thereon which transfers the toner image onto a recording medium at a transfer printing region; the recording medium lying on an electrostatically-chargeable conveyor belt and adhering thereto due to electrostatic forces and which transports the recording medium through said transfer printing region and along a guided transport section where it is conveyed to a fixing device; said guided transport section being arranged in a transport unit and the fixing device being arranged in a fixing unit, said transport unit and fixing unit being used independent of one another and removable from the printing or copying device; said fixing unit having at least one wall designed as a hollow chamber profile which hinders a heat transfer from the fixing unit to the transport unit; the recoding medium being conveyed to the fixing device along a free transport section in which the recoding medium can freely arch; and a length of the free transport section being at least ⅓ of a shortest recording medium to be printed and being shorter than a length of the shortest recording medium to be printed.