Process for developing electrographic images by causing electric

Details Process for developing electrographic images by causing electric Process for developing electrographic images by causing electric

1976-06-28

1978-02-28

Smith, Ronald H.

Coating processes

Measuring, testing, or indicating

Thickness or uniformity of thickness determined

96 1SD, 427 14, 427 17, G03G 1306, G03G 1308, G03G 1309

Patent

active

040768570

ABSTRACT:
Development of electrostatic charge patterns (e.g., electrostatic latent images) carried on a support is accomplished in an electrographic process in which during development, an electrical field which is greater than the electrical breakdown value of the developer (i.e., greater than the maximum electrical field that the developer can support without undergoing electrical breakdown) is established across the developer in the development area. The process enables development of high quality, large solid-area images at high processing rates.

REFERENCES:
patent: 3219014 (1965-11-01), Mott et al.
patent: 3424131 (1969-01-01), Aser et al.
patent: 3428025 (1969-02-01), Sullivan
patent: 3674532 (1972-07-01), Morse
patent: 3783826 (1974-01-01), Urbanek et al.
patent: 3893408 (1975-07-01), Lamel
patent: 3932034 (1976-01-01), Takahashi
Kutsuwada, Norborn and Ando, Yujiro; "Studies on Transfer of Electrophotographic Powder Images," Denshi Shashin [Electrophotography] 10, No. 1, 14-17, (1971).
Harpavat, G.; "Electrostatic Field Stripping Model of Magnetic Brush Development," Conference Record IAS 1975; pp. 128-134.
Schein, L. B., "The Physics of Magnetic Brush Development" Conference Record IAS 1975; pp. 140-144.

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