TEMPERATURE CONTROL IN FUSING SYSTEMS
Original Publication Date: 1979-Apr-30
Included in the Prior Art Database: 2004-Apr-01
Xerox Disclosure Journal
This disclosure relates to a radiant fuser 10 for fixing toner images to copy substrates. The fuser 10 comprises a lamp 12 and reflector 14 for causing radiant energy to impinge upon toner images 16 carried by a sheet of plain paper 18. A base reflector 20 serves as an additional source of heat. In order to preclude overheating of the base, an air duct 21 beneath the base is partially filled with a material 22 having an appropriate heat of fusion material, for example, lithium nitrate. The melting point of the material is such that it is lower than the maximum allowable base temperature. A plurality of fins 24 attached to the base extend into the material in order to allow heat from the top of the base to be conducted into the material. A source of air, not shown, causes air to flow across the fins to aid in controlling the base temperature.