Image producing apparatus
AssigneeFuji Xerox Co., Ltd.
InventorsMakoto Sakanobe, Yoshikazu Tamura
Life of this patent
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Abstract
A screen lamp can be mounted easily. A belt type photoreceptor 15 is rotatably provided along a plurality of rollers 14 and 14-1, and a screen lamp 28 is mounted on there are side of the belt type photoreceptor 15 with respect to the rollers 14-1. The rollers 14-1 maintain a predetermined clearance between the belt type photoreceptor 15 and the screen lamp 28. And a pattern exposing device which ensures small size, simple construction and low cost is disclosed.
Claims13
An image producing apparatus comprising:
- a uniformly charged movable photosensitive material, said photosensitive material having a surface for forming an electrostatic latent image of an original image in response to exposure to light;
- pattern exposing means for exposing said photosensitive material to light to form said electrostatic latent image on said surface, said electrostatic latent image being in the form of a plurality of slits spaced apart by a predetermined distance, wherein said pattern exposing means includes:
- a plurality of infinitesimal light sources aligned at equal pitches substantially transversely to the direction of movement of said photosensitive material,
- a pattern plate positioned between said plurality of infinitesimal light sources and said surface of said photosensitive material, said pattern plate having a plurality of light transmitting areas and a plurality of light opaque areas, each of said transmitting areas being disposed adjacent one of said opaque areas;
- means for developing said electrostatic image formed on said surface of said photosensitive material with a toner;
- and
- means for transferring the developed toner image to a transfer material.
A lamp-mounting construction for an image producing apparatus, comprising:
- a plurality of rollers mounted on a frame;
- a continuous belt type photoreceptor rotatably mounted about said plurality of rollers;
- a charger, an exposing device, a developer, and a transfer device disposed in order around said belt type photoreceptor in a direction of movement of said belt type photoreceptor and disposed adjacent to a surface of said belt type photoreceptor;
- and
- a lamp disposed adjacent to at least one of said plurality of rollers such that a predetermined distance is substantially maintained between the lamp and the surface of the belt type photoreceptor, said lamp being disposed adjacent said surface of said belt type photoreceptor at a position intermediate at said charger and said developer.
A lamp-mounting construction for an image producing apparatus, comprising:
- a photoreceptor supporting frame having a front vertical plate and a rear vertical plate, said front and rear vertical plates being connected;
- a plurality of rollers mounted on said frame;
- a continuous belt type photoreceptor rotatably mounted about said plurality of rollers;
- a charger, an exposing device, a developer, and a transfer device disposed in order around said belt type photoreceptor in a direction of movement of said belt type photoreceptor and disposed adjacent to a surface of said belt type photoreceptor, wherein
- at least two of said plurality of rollers are mounted on said frame a short distance apart, the at least two rollers are disposed at a position intermediate of said charger and said developer;
- and
- a lamp disposed adjacent to the at least two rollers such that a predetermined distance is substantially maintained between the lamp and the surface of the belt type photoreceptor.
Dependencies are inferred from the claim text.