Abstract: A transfer apparatus for transferring an image of a developer from an image-bearing medium onto an image receiving medium in a transfer zone includes a heating device that heats the image-bearing medium, an adjustable power supply device that supplies electrical power to the heating device, a first temperature sensor for sensing a basis temperature in the vicinity of the image-bearing medium away from the transfer zone and for transmitting to a controller a signal indicative of the basis temperature. The controller is adapted to adjust the power supplied by the power supply device to the heating device to obtain a target temperature in the transfer zone, in response to the signal indicative of the sensed basis temperature and based on a pre-established relationship between the power supplied to the heating device and a temperature difference between a temperature in the transfer zone and the basis temperature.

Abstract: An image transfer device for a sheet-fed image reproduction system is disclosed in which an improved removal of contaminants from the surface of an image transfer member is possible by using a tacky surface cleaning member contacting the image transfer member surface. The tacky surface of the cleaning member is rejuvenated substantially without affecting the productivity of the image reproduction system by applying predetermined patterns of cleaning substance on the image transfer member surface in the non-image areas, being the part of the inter-image areas coinciding with the inter-sheet areas. Also disclosed is a method for cleaning the image transfer member surface of such image transfer device.