Method of developing electrostatic latent image

Details Method of developing electrostatic latent image Method of developing electrostatic latent image

1980-06-23

1981-10-27

Newsome, John H.

Coating processes

Measuring, testing, or indicating

Thickness or uniformity of thickness determined

118648, 118653, 118661, 430103, 430120, G03G 1308

Patent

active

042973848

ABSTRACT:
In an electrostatic apparatus using a toner layer carried by a developing roller for developing a latent image, a doctor blade applied with a voltage of the same polarity as that of the toner is used for partly scraping the toner layer. The toner scraped off is sucked by a suction means. An additional doctor blade is preferably used together with the main doctor blade to make rough and fine control of the thickness of the toner layer.

REFERENCES:
patent: 3696783 (1972-10-01), Fantuzzo
patent: 4089297 (1978-05-01), Morita et al.
patent: 4091765 (1978-05-01), Lowthorp et al.
patent: 4119060 (1978-10-01), Mochizuki et al.
patent: 4121931 (1978-10-01), Nelson

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