JPH0526386B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a copying apparatus that converts image information on a document surface into an electrical signal, processes the signal, and records the signal again.

(Prior Art) A so-called scanning type copying machine that converts an image signal of an original into an electrical signal and then records it again has an advantage in that it can perform various signal processing on the converted electrical signal.

However, in the past, it was inferior to normal image-forming type copying machines in terms of image quality, so there were few examples of it being put into practical use, and to some extent it was used as a copying machine by directly connecting a facsimile transmitter and receiver. be.

The types of scanning copying machines that will appear in the future will be ones similar to current facsimile machines, in which a sheet-like original is inserted into the image signal reading section, or those similar to normal image-forming copying machines. One idea is to place the original face down on the original table.

However, with either method, there are few problems when simply copying the entire manuscript, but when copying only a part of the manuscript or combining several manuscripts to create a single page, It is difficult to indicate the necessary areas.

All of these problems are caused by the fact that the surface of the document cannot be visually observed.

Therefore, an optical system that uses a semi-transparent mirror or the like to observe the part of the document where the signal is being read can be considered, but even when specifying a part of the document, it is necessary to grasp the relationship with the whole document, and It is desirable to be able to see.

(Problems to be Solved by the Invention) As described above, when copying only a portion of a document, it is difficult to specify the necessary area on the document.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a copying apparatus that can visually indicate the portion of a document to be copied.

[Structure of the invention]

(Means for Solving the Problems) The present invention provides means for reading image information of a document placed on a table by scanning the surface of the document, and recording image information of the portion read by this means. In a copying apparatus having means for recording on paper or the like, a predetermined light spot is irradiated with light from a light source to indicate the position where the image information is being read, using an optical means, at a position where the image information is being read. A copying apparatus characterized in that the copying apparatus is provided with a means for irradiating, and the means for emitting light is movable together with the means for reading.

(Function) As in the embodiment, the portion of the document to be copied can be specified using a spot light with the surface of the document facing upwards so that it can be seen visually. For example, when composing originals, it is possible to easily specify the position where each original is to be copied.

(Example) An example of the present invention will be described using FIGS. 1 to 3.

As shown in FIG. 1, a paper surface 2 is placed facing upward on a document table 1, and a sensor section 3 is provided above the paper surface so as to face the paper surface. As shown in FIG. 2, the sensor section 3 is
It consists of a line sensor 4, an imaging lens 5 that images the paper surface 2 on the line sensor 4, a sensor moving section 7 including an optical path changing mirror 6, and a drive system 8 that moves the sensor moving section 7. The line sensor 4 electrically scans the image signal in the lateral direction of the paper surface, and mechanically scans the image signal in the longitudinal direction by the movement of the sensor moving unit 7. For example, a semiconductor photodetection element such as a CCD is used as the line sensor.

The electrical signal from the line sensor 4 is sent to the print head 9 after passing through a signal processing circuit 20 as shown in FIG. In the printer, a recording paper 12 is sent out from a recording paper cassette 10 by a feed roller 11, and recorded by a print head 9. For example, a thermal head is used as the print head 9.

Furthermore, if a light source 14 such as a lamp or a light emitting diode and a condensing lens 13 are attached to the sensor moving unit 7 as shown in FIGS. can be given instructions. It can be shown by a light spot as shown in FIG. 4, or it can be shown by a light line using a cylindrical lens 13 as shown in FIG. In this case, what is important is that this instruction is visible on the top surface of the document, that is, the surface on which image information is written.

In addition to the various advantages of a scanning copying apparatus that once converts an image signal into an electrical signal, the present invention has the following effects. For example, if you want to combine and copy the upper half of paper A and the upper half of paper B, first place paper A in the correct position and copy the upper half. This can be done by temporarily stopping the copying operation when the moving light spot indicating the image signal detection position reaches halfway. Next, the sheet B is shifted by half of the sheet surface and placed on the document table, and the copying operation is resumed.

Since the sensor section can be made small, a stable device can be realized.

Furthermore, according to the configuration of this embodiment, information can be written on the paper after it is placed on the document table 1, and furthermore, the written document can be copied immediately without having to be replaced. I can do it.

In the above embodiment, a one-line line sensor is assumed, but a sensor in which a plurality of photoelectric elements are lined up in the moving direction may be used.

Further, the electrical signal from the sensor may be stored once in a memory, and in this case, it becomes easy to use the image signal detection section and the recording section separately.

〔Effect of the invention〕

According to the present invention, in particular, since the position of the part currently being copied can be visually checked while the paper surface of the original to be copied is visible, the position of the part of the original to be copied can be easily specified.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one embodiment of the present invention, FIG. 2 is a sectional view thereof, FIG. 3 is an explanatory diagram showing the flow of signals, and FIGS. 4 and 5 are FIG. 3 is a perspective view for explaining position display. 1...Original table, 2...Paper surface, 3...Sensor section,
4... Line sensor, 8... Drive system, 9... Print head, 12... Recording paper.

Claims (1)

[Scope of Claims] 1. A means for reading image information of a document placed on a table by scanning the surface of the document, and a means for recording image information of the portion read by this means on a recording paper or the like. The copying apparatus has a means for irradiating the position where the image information is being read with light from a light source for indicating the position being read by setting it as a predetermined light spot using optical means, and irradiating the position where the image information is being read. A copying apparatus characterized in that the means is movable together with the reading means.