Developing apparatus

Details Developing apparatus Developing apparatus

1980-03-03

1981-11-03

Pianalto, Bernard D.

Coating apparatus

With means to apply electrical and/or radiant energy to work...

With electromagnetic and/or electrostatic removal of...

118658, G03G 1506, G03G 1509

Patent

active

042979706

ABSTRACT:
A developing apparatus including a rotatable toner supporting member, a magnet fixedly positioned therein and a magnetic blade positioned close to the toner supporting member and in opposed relation to a cutting magnetic pole of the magnet for defining the thickness of the toner layer formed on the toner supporting member. The toner employed has a mean particle size of 5 to 30 microns and contain magnetic powder in a proportion of 15 to 50 wt. %. The magnetic field between the magnetic blade and the cutting pole is maintained at a mean magnetic flux density not lower than 1350 gauss.

REFERENCES:
patent: 3882821 (1975-05-01), Katayama et al.
patent: 4014291 (1977-03-01), Davis
patent: 4081571 (1978-03-01), Nishihama et al.
patent: 4132192 (1979-01-01), Weyers et al.

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