JPS609785Y2 - Photoreceptor printing equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a photoconductor printing apparatus, and includes a stage glass on which a photoconductor is placed, a first light source and a second light source provided below the stage glass, and a first light source and a second light source provided below the stage glass. A light diffusion plate and a first light shielding element are sequentially inserted between a first light source and the stage glass, and the stage glass is parallel to the stage glass and is formed between the first light shielding element and the stage glass. a mechanism for transporting the second light source along a light source transport path having a length equal to the effective length of the stage glass, and the second light source extends in the width direction with a length equal to the effective width of the stage glass. It consists of a light emitting element and a second light shielding element disposed above the light emitting element, and each of the eleventh and second light shielding elements has a hexagonal cross section and has its inner surface colored to absorb the spectral distribution of the photoreceptor. It is characterized by a plurality of opaque hollow cylinders arranged side by side in a honeycomb shape with their axes perpendicular.

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 indicates a baking case outer box, 2 indicates a stage glass, and 3 indicates a vacuum sealing sheet. In the present invention, a first light source 4 is fixed to the lower surface of the stage glass and disposed facing each other. A light diffusing plate 5 and a light shielding element 6 are sequentially inserted in this order to create a uniform surface light source between the light shielding element 6 and the stage glass 2, and a second light source 7 is inserted between the light shielding element 6 and the stage glass 2. A transfer path 8 is provided parallel to the stage glass 2, the length of this transfer path 8 is made equal to the effective length of the stage glass 2, and the second The light source 7 is made freely transportable.

The second light source 7 in the present invention includes, for example, an outer casing 11 connected to a chain 9, as shown in FIG.
It is formed by a discharge lamp 12 extending in the width direction with a length equal to the effective width of the stage glass 2 disposed inside the case, and a light shield 13 provided on the upper surface of the outer case 11. A plurality of regular hexagonal hollow cylinders made of opaque material whose inner surfaces are colored to absorb the spectral distribution of the photoreceptor in cross section are arranged in a honeycomb-like manner adjacent to each other in the form of bands, the axis of which is relative to the stage glass 2. Arrange and configure vertically.

Since the present invention has the above-mentioned configuration, by using both or either of the first light source 4 and the second light source 7, photoreceptors with different spectral distributions of light sensitivity can be printed with a single printing device. Among the light components effective for the photoconductor, only the light that is absorbed by the inner surface of the light shielding element and travels in a straight line is carried along, so that the angle of incidence of the light on the stage glass 2 is uniform, and furthermore, depending on the type of photoconductor, By changing the size of the cross section of each hollow cylinder of the light shield, the light distribution (incident angle) can be adjusted to a suitable value.

Note that when the discharge lamp 12 is moved back and forth for exposure on the lower surface of the stage glass 2, the degree of scattering of light in the direction of the reciprocating movement is different from the degree of scattering of light in the direction perpendicular to this direction, achieving uniform exposure. However, if the light shielding element 13 of the present invention is used, such drawbacks can be eliminated.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the device of the present invention, and FIG. 2 is a detailed diagram of its second light source. 1... Baked case outer box, 2... Stage glass, 3... Vacuum adhesive sheet, 4...
...First light source, 5...Light diffusion plate, 6...
...Shade, 7...Second light source, Death...
Transfer path, 9...Chain, 1o...Transfer motor, 11...Outer box, 12...Discharge lamp,
13... Light shield.

Claims (1)

[Scope of utility model registration request] a stage glass on which a photoreceptor is placed; a first light source and a second light source provided below the stage glass; and a light diffusing plate sequentially inserted between the first light source and the stage glass. A first light shield, and a light source transport path parallel to the stage glass formed between the first light shield and the stage glass and having a length equal to the effective length of the stage glass. the second light source includes a light emitting element extending in the width direction with a length equal to the effective width of the stage glass, and a second light shielding element disposed above the light emitting element; Said first,
Each of the second light shields has a hexagonal cross section, and a plurality of opaque hollow cylinders whose inner surfaces are colored to absorb the spectral distribution of the photoreceptor are arranged side by side in a honeycomb shape so that their axes are perpendicular. A photoconductor printing device characterized by the following: