Electrophotography – Image formation – Fixing
Patent
1996-12-17
1998-03-03
Lee, S.
Electrophotography
Image formation
Fixing
219216, 399330, G03G 1520
Patent
active
057246394
ABSTRACT:
The inner surface of a fixing roller is divided into two areas in the lengthwise direction thereof. In one of the areas where the increase rate of the surface temperature of the fixing roller is small, and improper fixing to recording paper is likely to occur, black heat resistant coating is applied to the inner surface of the fixing roller to improve heat absorption. In addition, in the other area where the surface state of the inner surface of the fixing roller is non-uniform, and heat absorption is not stable, transparent heat resistant coating is applied to the inner surface of the fixing roller to stabilize the heat absorption. It is attempted in this manner to make uniform the temperature of the fixing roller in the lengthwise direction thereof and thus to make uniform the fixing in the whole paper-passing area.
REFERENCES:
patent: 3902845 (1975-09-01), Murphy
patent: 5153411 (1992-10-01), Ndebi
T. Watanabe, et al. Electrophotographic Institute, vol. 31, No. 2 pp. 156-163 (1992).
K. Akiyama, Resume prepared for the 40th Short Class of Electrophotographic Institute, pp. 31-38 (1995).
S. Kimura, et al. Journal of Electrophotographic Institute, vol. 30, No. 4 pp. 398-402 (1991).
Kagawa Toshiaki
Tamura Toshihiro
Yokota Shogo
Conlin David G.
Lee S.
Neuner George W.
Sharp Kabushiki Kaisha
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