Be used for with carbon dust be fixed in fixing device that prints on media with and printing apparatus thereof

The utility model provides a fixing device which includes drive number and fixing unit, and fixing unit includes adiabatic subassembly, heating element, heat conduction subassembly, reflective assembly, metallic structure enhancement subassembly and photographic fixing subassembly. Heating element and reflective assembly are located adiabatic subassembly, and the heat conduction subassembly is connected in adiabatic subassembly, and metallic structure enhancement subassembly is located adiabatic subassembly just to be separated mutually with the heat conduction subassembly outward, and the subassembly is strengthened around heat conduction subassembly, adiabatic subassembly and metallic structure movablely to the photographic fixing subassembly, and reflective assembly reflects the produced heat energy of heating element to the heat conduction subassembly, and the heat conduction subassembly is with heat conduction to photographic fixing subassembly to make the carbon dust be heated and be fixed in on the pri