Heater element for fixing toner for a photocopier or laser printer has a series of parallel holes in the support for the heater element, so that the heater element is more isolated and heat loss to its surrounding prevented

摘要

Heating unit comprises a chassis and a heater element (10) fixed with respect to the chassis and comprising a filament (3) held by a support element connecting to the chassis. The support element (1) has a series of holes (15a-e) parallel to the filament and allowing the zone heated by the filament to be isolated from the rest of the chassis.