JPH0617133Y2 - Copier information addition device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to an information adding device for copying information such as date on copy paper in a copying machine or the like.

2. Description of the Related Art In recent years, functions such as writing and synthesizing characters and image information have been added to copying machines, and many means have been proposed. For example, Japanese Utility Model Application Laid-Open No. 60-6141 discloses a technique of synthesizing and copying an original image using a liquid crystal display plate. In FIGS. 5 and 6, 1 is an original placed on the original placing table 2, 3 is an exposure lamp, 4 is a mirror, 5 is a lens, 6 is a photosensitive drum, and 7 is a lower portion of the original placing table 2. Is a liquid crystal display arranged in.

In such a structure, the line drawing information of the original 1 and the liquid crystal display 7 is exposed by the exposure lamp 3, and is imaged on the photoconductor drum 6 through the mirror and the lens to form a composite image. There is.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above-described configuration, the lens 5 is focused on the original 1, and the display portion of the liquid crystal display 7 which is separated from the original 1 via the original placing table 2 is focused. Will not fit. Therefore, the copied characters are blurred. or,
The light of the exposure lamp is shaded at the end face of the liquid crystal display 7,
This shade is copied as black stripes on the copy paper. Further, there is a problem that the position of the additional information copied on the copy sheet is fixed and cannot be changed.

In view of the above-mentioned problems, the present invention provides a character blurring of a numerical display, and
Prevents copying of black streaks due to the shadow of the edge of the liquid crystal display, and also allows the black portion of the copy paper and the white numbers on the black portion to be copied at any position on the copy paper. A device is provided.

Means for Solving the Problems In order to solve the above problems, an information adding device of a copying machine of the present invention comprises a liquid crystal circuit breaker provided near the photosensitive drum and on the exposure optical path to block light. A light emitting element arranged parallel to the axial direction of the photosensitive drum, an optical fiber having a different thickness in the axial direction of the photosensitive drum for guiding the light of the light emitting element to the photosensitive drum, and a control means for controlling the liquid crystal breaker and the light emitting element. It is equipped with.

The present invention has the above-described structure to block the exposure at a desired position by the liquid crystal circuit breaker so that the black portion is copied, and a line of light-emitting elements is formed on the black portion according to the rotation of the photosensitive drum. Is controlled by the control means so that it can be drawn on the photosensitive drum. This light is directly irradiated onto the photosensitive drum through the optical fiber. Therefore, there is no blurring of numbers or black streaks due to shadows, and a beautiful line drawing is synthesized and copied at an arbitrary position.

Embodiment An information adding apparatus for a copying machine according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic view of the essential parts of a copying machine according to the present invention, FIG. 2 is a perspective view of the essential parts of a light emitting element and an optical fiber, and FIG. 3 is a plan view showing a state in which additional information is copied onto a copy sheet, and FIG. Is an enlarged view of a copy of additional information. In these figures, 1 is a document, 2 is a document table, and 3 is an exposure lamp for illuminating the document 1. Reference numeral 4 is a mirror, 5 is a lens, and 6 is a photosensitive drum, which forms an electrostatic latent image corresponding to the original image of the original 1. Reference numeral 7 denotes a liquid crystal breaker arranged on the exposure optical path, which shields a light image from the original 1. Reference numeral 8 denotes a light emitting element such as an LED, which is a light emitting source for generating additional information.
Reference numeral 9 is an optical fiber that guides the light of the light emitting element 8 onto the photosensitive drum. A control unit 10 controls the liquid crystal breaker 7 and the light emitting element 8.

The operation of the information adding device of the copying machine configured as described above will be described below. In the electrophotographic copying machine apparatus of FIG. 1, when a copying operation is performed, the exposure lamp 3 and the mirror 4 move so as to scan the image of the original document 1, and the image exposure light of the original document 1 is reflected by the mirror 4, the lens 5, and the liquid crystal. The photoconductor drum 6 is irradiated with the light through the breaker 7. The photoconductor drum 6 rotates in the direction of the arrow to form an electrostatic latent image corresponding to the original image. At this time, when it is desired to copy numbers such as date, page, registration number, etc. on the copy paper, the liquid crystal breaker 7 is operated by the control means 10. When the liquid crystal breaker 7 operates, the exposure light cannot pass through, and static electricity remains on the photoconductor drum 6 only during the operation. Next, when this static electricity portion passes through the optical fiber 9, by the control means 10,
The light emitting element 8 emits light so as to draw numbers, and the numbers are exposed at the above-mentioned static electricity remaining places. Therefore, Figs. 3 and 4
As shown in the figure, a black portion is copied to an arbitrary portion of the copy sheet and a white numeral is copied to this black portion.

FIG. 2 is a perspective view of a main part of the light emitting element and the optical fiber,
Three light emitting elements 8 are used to draw one number. The optical fibers 9a and 9b have different shapes in the axial direction of the photoconductor drum 6 so that numbers can be drawn by the three light emitting elements 8. Next, a method of lighting the light emitting element 8 will be described. The horizontal line portion of the number lights up the three light emitting elements 8 for a short time, and the vertical line portion of the number changes the lighting time of the light emitting element 8 according to the rotation of the photosensitive drum 6 to draw the number. ing. In the above description, one number is drawn, but in reality, the light emitting elements 8 and the optical fibers 9 may be arranged by the number required by the additional information.

As described above, according to the present embodiment, by providing the liquid crystal circuit breaker, the light emitting element and the optical fiber in the vicinity of the photoconductor drum, the copy sheet is provided with a black portion and a white number on the black portion. You can make clear copies.

As described in detail above, according to the present invention, a liquid crystal breaker is provided in the vicinity of the photosensitive drum and on the exposure optical path, and the light emitting elements arranged in the axial direction of the photosensitive drum and the thickness in the axial direction of the photosensitive drum are provided. With a very simple machine with different optical fibers, it is possible to make a black part on copy paper and display the white date, page, registration number etc. clearly and with emphasis on this black part. it can.

[Brief description of drawings]

FIG. 1 is a schematic view of the essential parts of a copying machine according to an embodiment of the present invention, FIG. 2 is a perspective view of the essential parts of a light emitting element and an optical fiber, and FIG. 3 is a plan view showing a state in which additional information is copied onto a copy sheet. 4 and 5 are enlarged plan views of a portion where the additional information is copied, FIG. 5 is a configuration diagram of a main part of a conventional copying machine, and FIG. 6 is a perspective view thereof. 1 ... original, 3 ... exposure lamp, 6 ... photoconductor drum,
7 ... Liquid crystal breaker, 8 ... Light emitting element, 9 ... Optical fiber, 10 ... Control device.

Claims (2)

[Scope of utility model registration request] 1. A liquid crystal circuit breaker, which is provided in the vicinity of the photosensitive drum and on the exposure optical path and blocks light, a row of light emitting elements arranged in parallel with the axial direction of the photosensitive drum, and a shaft of the photosensitive drum. Two types of optical fibers having different thicknesses for guiding light of the light emitting element to the photosensitive drum, and control means for controlling the liquid crystal breaker and the light emitting element according to the rotation of the photosensitive drum are provided. Characteristic information addition device for copiers. 2. Three light emitting elements arranged in a row, and two light emitting elements arranged corresponding to each light emitting element and having a first axial thickness.
An information adding device for a copying machine according to claim 1, wherein one optical fiber and one optical fiber having a second axial thickness disposed between the optical fibers are arranged for recording one numeral.