JPS60130259A - Copying machine - Google Patents

Abstract

PURPOSE:To attain correct copying independently of placed attitude of an original by deciding an effective area of picture information of an original in picture information of glass face stored in an original information memory by means of a microcomputer so as to output the result to a copying picture forming device. CONSTITUTION:When a start button is depressed, alighting device 13 is turned on by a signal from the microcomputer 16, a data is binary-coded by a solid- state image pickup element 14 and stored in the original information memory 18. The microcomputer 16 decides the effective area of the picture information of the original in the storage content of the memory 18, compares the data of the JIS standards stored in the microcomputer 16 with the size of the area to decide the size of the placed original. If the size of the placed original does not meet the JIS standards, the signal processing of magnification or shrinking together with density is applied and the result is displayed on a cathode ray tube 20 via an interface 19.

Description

[Detailed description of the invention] [Technical field of invention] The present invention relates to a copying apparatus.

[Prior art]

A conventional device of this type is shown in FIG. In the figure, 1 is the cover of the manuscript, 2 is the number of sheets, size,
A keyboard is used for inputting conditions such as darkness, 3 is a glass surface on which the original is placed, and 4 is a guide scale for adjusting the size of the original.

Next, how to use this device will be explained. An operator lifts the cover 1, places the original to be copied in alignment with the guide scale 4 of the original size, lowers the cover 1, specifies the copy size, number of copies, etc. using the keyboard 2, and copies.

Conventional copying machines are configured and used as described above, so even if the document position is shifted when the cover is lowered after placing the document to be copied, or if the document position is set incorrectly by setting the guide scale, there is no need to worry. However, since this is not known until the copying results are seen, there is a drawback that there are many copying errors.

[Summary of the invention]

This invention was made in order to eliminate the drawbacks of the conventional ones as described above. Image information on the glass surface containing the original is stored in an original information memory, and the effective area of the original in the memory is controlled by a microcomputer. By determining the positional deviation of the original, by sending only the image information of the effective area or the image information including this to the copy image making device to obtain a copy image.
It is an object of the present invention to provide a copying apparatus that does not cause copying errors due to misplacement.

[Embodiments of the invention]

Hereinafter, one embodiment of this suction will be described with reference to the drawings. FIG. 2 is a block diagram of a copying apparatus according to an embodiment of the present invention. The appearance of this device is the same as that shown in FIG. 1, and the device also has a cover 1. Keyboard 2. Glass surface 3. It has a guide scale 4, and 2 in FIG. 2 corresponds to the keyboard 2 in FIG. In FIG. 2, 10 is a transparent glass plate that can cover the maximum area that can be copied, 11 is the original to be copied, and 13 is the input of copying conditions from the keyboard 2 for inputting copying conditions via the microcomputer 16. 14 is a solid-state image sensor from which the image of the surface of the glass plate 10 is manually inputted as an optical signal when the lighting device 13 is turned on; 12 is a reflection of the surface of the glass plate 10; A light forming device (lens) that guides light onto the solid-state image sensor 14 and forms an image; 18 is a document information memory that stores image information on the surface of the glass plate 10 on which the document 11 is placed; 16 is a microcomputer; The microcomputer 16 has a function of storing the image information of the original 11 sent from the solid-state image sensor 14 in the original information memory 18, and also determines the effective area of the image information in the original information memory 18.
It has a function as an image information output means that outputs only the image information of the effective area after subjecting it to necessary signal processing according to the copying conditions. Further, the microcomputer 16 not only outputs image information to the cathode ray tube 20, but also has a function of outputting a mechanical system control signal 15, which will be described later, in accordance with input copying conditions. 17 is a display device for displaying the copying conditions entered from the keyboard 2;
19 is an interface for outputting image information from the microcomputer 16; 15 is a mechanical system control signal output from the microcomputer 16; 20 is a cathode ray tube for displaying image information output from the microcomputer 16 via the interface 19. , 21 is a photoreceptor which is controlled by the mechanical control signal 15 and receives light from the cathode ray tube 20 to produce a copy.

Next, the operation will be explained.

When the operator lifts the cover 1, places the original 11, lowers the cover 1, inputs the copying conditions from the keyboard 2, and presses the start button ttt+sah,
The lighting device 13 is turned on by a signal from the microcomputer 16, and the cover 1 and original 11 are displayed on the solid-state image sensor 14.
The reflected light is input, the data is converted into binary data by the element 14, and is stored in the document information memory 18 via the microcomputer 16.

On the other hand, copying conditions such as the number of copies, size, density, etc. are input from the input keyboard 2 for specifying copying conditions to the microcomputer 16, and these are displayed on the display device 17. Then, the microcomputer 16 determines the effective area of the image information of the original, that is, the area where the image information of the original is stored, among the stored contents of the original information memory 1B, and determines the size of the effective area. The size of the placed document is determined by comparing it with the JTS standard data stored in the device. If the size of the placed manuscript does not correspond to the JIS standard, it is regarded as the smallest JIS standard size that is larger than the size of the effective area, and the image information of the JIS standard size including the effective area is used as the manuscript information. The read image information is read out from the memory 18 and subjected to signal processing according to the copy input conditions such as density and whether it is the same size, enlarged or reduced, and outputted to the cathode ray tube 20 via the interface 19. do. At the same time, the microcomputer 16 outputs a mechanical system control signal 15, causing the cathode ray tube 2O and the photoreceptor 21 to
A copy image is obtained by the operation.

Therefore, in this embodiment, no matter how the operator places the original on the glass surface, the microcomputer determines and outputs only the valid area in the original information memory, so even if the original position is shifted, the guide scale cannot be checked. To obtain a correct copy even if the original position is set incorrectly.

FIG. 3 shows another embodiment of the present invention, in which the device of the above embodiment is further equipped with a CR7 display device 5 for displaying the state of the glass surface 1O.

In this embodiment, by looking at the screen of the CR7 display device 5, it is possible to copy only the required portion of the document displayed on the screen, with the same size, enlargement or reduction. Furthermore, the operator is able to know the content to be copied before copying.

〔Effect of the invention〕

As described above, according to the present invention, the microcomputer determines the effective area of the image information of the white original of the image information of the glass surface stored in the original information memory, and only or includes the image information of this effective area. Since the image information is output to the copy image making device and copied, there is an effect that even if the original is placed incorrectly, the copy can be made correctly.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a conventional copying apparatus, FIG. 2 is a configuration diagram of a copying apparatus according to an embodiment of the present invention, and FIG. 3 is a perspective view of a copying apparatus according to another embodiment of the present invention. In the figure, 11 is a document, 16 is a microcomputer (image information output means), 18 is a document information memory, 20 is a cathode ray tube, 15 is a mechanical system control signal, and 21 is a photoreceptor. Note that the same reference numerals in the figures indicate the same or equivalent parts. Agent Masuo Oiwa

Claims (1)

[Claims] (11) A document information memory that stores the image information of the glass surface on which the document is placed, and a valid area of the image information of the document in the M document information memory, and image information including the valid area is sent to the required signal. 1. A copying apparatus comprising: image information output means for processing and outputting image information; and a copy image creation device for creating a copy image using the image information from the image information output means.