Photosensitive member and electrostatic information recording me

Details Photosensitive member and electrostatic information recording me Photosensitive member and electrostatic information recording me

1995-08-30

2000-02-15

Fuller, Benjamin R.

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

247119, 247130, 365105, 365109, 365112, 365115, 399136, B41J 2385, B41J 2415, G03G 1501, G01D 1506

Patent

active

060258578

ABSTRACT:
A photosensitive member which has an electrode provided on the front side and a photoconductive layer stacked on the electrode, the photosensitive member being disposed face-to-face with an electrostatic information recording medium that includes a charge retaining layer having an electrode provided on the rear side, either in or out of contact with each other, to carry out exposure with a voltage being applied between the two electrodes, thereby forming an electrostatic charge pattern on the electrostatic information recording medium in accordance with an exposure light pattern. The layer arrangements of the photosensitive member and the photoconductive layer as well as the method of forming the photoconductive layer are improved so that electrostatic information can be recorded on the electrostatic information recording medium with high sensitivity and it is also possible to improve the contrast ratio of the information charge at the exposed region to that at the unexposed region.

REFERENCES:
patent: 3864720 (1975-02-01), Merrin
patent: 4085455 (1978-04-01), Okumura
patent: 4207100 (1980-06-01), Kadokura et al.
patent: 4274103 (1981-06-01), Yamamoto et al.
patent: 4337303 (1982-06-01), Sahyun et al.
patent: 4410614 (1983-10-01), Lelental et al.
patent: 4613557 (1986-09-01), Foley et al.
patent: 4904557 (1990-02-01), Kubo
patent: 5161233 (1992-11-01), Matsuo et al.
R.M. Schaffert, "Electrophotography", 1965, The Focal Press, London, pp. 92-93.

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