Image forming apparatus

Details Image forming apparatus Image forming apparatus

1992-02-25

1993-03-30

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355246, 356446, G03G 500

Patent

active

051988526

ABSTRACT:
An image forming apparatus having a pattern forming device for forming on a photosensitive member, a plurality of patterned images having toner attached thereto; a light emitting device for irradiating light over the patterned images on the photosensitive member; and a photosensor device for detecting toner density on the basis of quantity of the light scattered by the patterned images; wherein an incident plane of the light emitting device relative to the photosensitive member is parallel to a cutting direction of a tubular stock of the photosensitive member.

REFERENCES:
patent: 4162126 (1979-07-01), Nakagawa et al.
patent: 4313671 (1982-02-01), Kuru
patent: 4627712 (1986-12-01), Usani
patent: 4646677 (1987-03-01), Lounsbury, Jr. et al.
patent: 5087822 (1992-02-01), Fairlie et al.

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