Electrophotography – Control of electrophotography process – Control of fixing
Patent
1998-12-23
1999-12-21
Grimley, Arthur T.
Electrophotography
Control of electrophotography process
Control of fixing
399324, 399328, G03G 1520
Patent
active
060060522
ABSTRACT:
A fixing method for fixing an unfixed toner image formed on a recording material by transporting the recording material to a contact portion between a fixing roller and a pressurizing mechanism for pressurizing the surface of the fixing roller is arranged such that the fixing roller surface temperature and the pressurizing mechanism surface temperature at the contact portion while the recording material is being transported therethrough are controlled to fall within a non-offset region in which a sufficient fixing strength for fixing toner onto the recording material can be ensured without generating a high temperature offset, said non-offset region being defined by a critical border line obtained from a function of a fixing roller surface temperature and a pressurizing mechanism surface temperature. According to the described fixing method, an occurrence of an offset can be prevented without an application of an oil, and a toner fixing inferior can be prevented.
REFERENCES:
patent: 4977431 (1990-12-01), Fuji
patent: 5321481 (1994-06-01), Mathers
patent: 5436430 (1995-07-01), Baruch et al.
patent: 5448339 (1995-09-01), Kokaji et al.
patent: 5847361 (1998-12-01), Yonekawa et al.
35th Technology Workshop organized by Electrophotographic Institute, ( Jun. 29-30, 1993), pp. 84 to 85 (Translation of passages related to claims 1, 9 and 24).
Kagawa Toshiaki
Kamimura Taisuke
Conlin David G.
Grimley Arthur T.
Sharp Kabushiki Kaisha
Tran Hoan
Tucker David A.
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