Fixing apparatus having a releasant removal means

Photocopying – Contact printing – Light boxes

Patent

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Details

118DIG1, G03G 1520

Patent

active

051775506

ABSTRACT:
A heated roller type of fixing device to prevent offsetting of toner onto a fixing or pressure roller and an imaging system including such a fixing device wherein a sheet with toner deposits thereon is passed between a fixing roller and a pressure roller to fix the toner in place, a releasant applicator applies a releasant on the surface of at least one of said fixing or pressure rollers, and a releasant remover removes from the sheet the releasant deposited thereon by the fixing or pressure roller, thereby the releasant remaining on the toner image is removed by the releasant remover. Thus, it is possible to eliminate image density variations which may otherwise be caused by an uneven distribution of the releasant, as is the case with the prior art, and to obtain an image density which does not change with time and so is stable.

REFERENCES:
patent: 4231653 (1980-11-01), Nagahara et al.
patent: 4541707 (1985-09-01), Yoshinaga
patent: 4956211 (1990-09-01), Saito

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