Digital printer or copier has protection device comprising detents to prevent contact between substrate and irradiating device

摘要

The printer or copier has a fixing device (3) with a device (7) for irradiating a paper or card substrate with electromagnetic radiation (11). A protection device (23) prevents excessive heating of the substrate. The protection device includes at least one detent in the radiation path (21) between the irradiating device (7) and the conveyance path of the substrate. The detents prevent contact between the substrate and the irradiating device. Alternatively, spaced-apart protection elements (41,43) may be used. An Independent claim is included for a device for protecting on object from excessive heating.