초록 ▼

An electrophotographic copying machine has a device for fixing toner. The fixing device is constructed such that it has a base support with two pairs of locating holes for a pair of spaced apart lower end blocks having means to support bearings which rotatably support the lower fixing roller. There

An electrophotographic copying machine has a device for fixing toner. The fixing device is constructed such that it has a base support with two pairs of locating holes for a pair of spaced apart lower end blocks having means to support bearings which rotatably support the lower fixing roller. There is an upper pressure roller which rests upon the lower roller. The upper roller is rotatably supported by bearings which are clamped downwards through engagement with “U”Bolts. In turn, the “U”Bolts are yieldably attached through the locating holes to the base support of the fixing unit. The “U”Bolts are threaded at the respective straight shanks, which allows for easy adjustment of the roller nip pressure through springs and adjusting nuts, engaged to the shanks of the “U”Bolts beneath the base support.

대표청구항 ▼

In an electrophotographic copying machine having instrumentalities for producing a toner image on a copy sheet, a device for fixing the toner image onto the copy sheet, said device comprising: A. a support means, B. a pair of spaced apart lower end blocks resting on said support means, C. a lower p

In an electrophotographic copying machine having instrumentalities for producing a toner image on a copy sheet, a device for fixing the toner image onto the copy sheet, said device comprising: A. a support means, B. a pair of spaced apart lower end blocks resting on said support means, C. a lower pressure roller extending between said spaced apart lower end blocks, D. lower bearing means mounted on said lower pressure roller supported by said pair of lower end blocks for rotatably supporting said lower pressure roller, E. an upper pressure roller resting on said lower pressure roller, F. upper bearing means mounted on said upper pressure roller for rotatably supporting said upper pressure roller, and G. clamping means engaging said upper bearing means, said lower end blocks and said support means for pressing said upper and lower pressure rollers together under substantially high pressure and for mounting said device on said support means.