Fixing means for electrophotographic copier

A fixing means for a copier comprising

• a first roller,
• a second roller adapted to become compressed against said first roller,
• means for measuring surface temperatures of said first and second rollers,
• heating means for independently heating said first roller and said second roller, said first roller and said second roller being adapted to be heated by said heating means to serve to fix toner images on an image transferring medium, and
• a control means for controlling the surface temperatures of said rollers and preventing a sudden drop of surface temperature of said first roller, said control means being programmed to first operate said heating means to heat both said first and second rollers until a first point in time when the surface temperature of said first roller reaches a first predetermined temperature level, to begin to rotate said rollers and stop heating said second roller by said heating means at said first point in time, to thereafter continue to rotate said rollers while continuing to heat said first roller by said heating means until a second point in time when the surface temperature of said first roller reaches a second predetermined temperature level higher than said first predetermined temperature level, to thereafter stop and start heating said first roller by said heating means such that the surface temperature of said first roller stays substantially at said second predetermined temperature level after said second point in time, and to thereafter stop rotating said rollers when the surface temperature of said second roller reaches a third predetermined temperature level.