JPS61200531A - Original feeding device - Google Patents

Abstract

PURPOSE:To improve considerably the efficiency of copying operation by inputting information on the size and direction of a fed original to a controller, comparing it with form size, and making a necessary indication when it is decided that there is some trouble in copying. CONSTITUTION:A hole 6 and plural holes 6b are bored in a guide plate 5 at the same level with a platen 9 and sensors 7 and 8 are arranged facing those holes. The length of the fed original is detected by the sensor 7 and the width is detected by the sensor; and their outputs are inputted to a CPU and compared with the size of forms and the comparison result is displayed on a display part, thereby outputting a command for changing the direction of the original or changing the forms. Therefore, a copy of life-size or variable magnification suitable to the sizes of the original and forms is taken and the efficiency of the copying operation is improved greatly.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a copying machine equipped with an automatic document feeder and configured to be able to automatically select enlargement/reduction copy modes, and particularly relates to When it is determined that the original IL'J size and the copy size do not match the paper size, the necessary commands are automatically output and the original is processed in the optimum mode. Regarding machines.

(Prior Art) Conventionally, a copying machine has been configured to combine an automatic document feeder with an automatic document feeder, and to automatically determine the copy magnification according to the original, paper size, etc., and perform the copying operation. It is often used.

However, the orientation of the document inserted into the automatic document feeder is naturally different between vertical and vertical feeding.
Furthermore, it is naturally necessary to change the direction in which the document is inserted depending on the document size, copy magnification, paper size, and the like.

This is explained in detail in the copying machine's manual, etc., and the relationship between the original size, paper size, enlargement/reduction ratio, etc. is displayed in a list on the platen cover of the copying machine. In normal copying operations, such instructions are rarely followed, but rather the items are selected appropriately and the copying operation is performed.

In contrast, copying machines detect the size of the fed document at a predetermined position near the platen, compare it with the size of the paper loaded in the copying machine, and automatically calculate the copy magnification. At the same time, if the calculated value is appropriate, the copying operation is started, but if it is not, the original is ejected without performing the copying operation, and the lamp on the control panel is turned on. and indicate that it cannot be copied. The operation is controlled according to a program installed in the control device of the copying machine.

However, for the operator, when a message indicating that copying is not possible is displayed on the control panel of the copying machine, etc., and the original is ejected, the reason why copying is not possible and the subsequent processing are clearly indicated. There is no one there,
There were many times when I was confused about that decision.

(Problems to be Solved by the Invention) The present invention solves the above-mentioned drawbacks of conventionally used devices. To provide a copying machine that automatically performs copying operations and, when copying cannot be performed, can select whether to eject a document or stop it on a platen, and can give appropriate instructions to an operator. The purpose is to

(Means and Operations for Solving the Problems) The copying machine of the present invention is equipped with an automatic document feeder, and a plurality of sensors are provided in the front part of the automatic document feeder. These sensors include a sensor for detecting the length of the document, which is installed along the center line of the document, and a sensor for detecting the width, which is installed at a predetermined interval on both sides of the center line. When a document is inserted into the automatic document feeder, the passage of the document and its length, width, etc. are detected.

Enter this information and check the copying operation of the copier.
The control device for performing II uses a microcomputer, etc. similar to that used to control copying operations in conventional copying machines. In addition to the automatic document feed mode and paper size, enter the necessary information as well as the information obtained by the sensor.
Calculations are performed based on this information, and settings such as the enlargement/reduction ratio can be automatically set based on the relationship between the size of the inserted document and the size of the paper stored in the paper cassette, etc. ing.

If copying is not possible due to the size of the original, its orientation, etc., the system determines whether to eject the original or issue a command to replace the paper, and automatically takes this action. This will be displayed on the machine's control panel.

Therefore, in the copying machine of the present invention, the operator can obtain the required =1 copy by performing the copying operation in accordance with the instructions displayed on the control panel.

(Example) The configuration of the automatic document feeder rt of the present invention and its control device is as follows.
To explain according to the illustrated example, as shown in FIG. 1, the copying machine of the present invention is provided with an automatic document feeder 1 on the main body of the copying machine so as to cover a platen 9.

Automatic document feeder 1 used in the copying machine of the present invention
This device has a configuration similar to that of a conventionally used device. Pads 3 are provided at predetermined intervals on document conveyor belts 1 to 2, which are passed between a driven roll and a driving roller 4. The document is transported, and the document is stopped at the copying position above the platen 9, and
The image of the document is read by an optical scanning member formed under the document.

In addition, a hole 6 is formed in the guide plate 5, which is formed at the same level as the top surface of the platen, along the center line for conveying the document, as shown in FIG. A plurality of holes 6a are formed at regular intervals on both sides from the center line at a position close to the automatic document feeder 1, and a sensor 7 is provided facing the 8 holes 6a. It is set up.

In the apparatus of the present invention, the sensor 7 is connected to the control device, and detects that the copying operation is normal when the original is delivered from the originals 1 to rays and the original arrives within a certain period of time. If the copying operation is continued and the original is not detected by the sensor 7 within a predetermined period of time, it is assumed that an abnormality has occurred in the original feeding and the ei function outputs a jam signal. However, in the device of the present invention, the sensor 7
is also used to detect the length of the document.

Further, as shown in FIG. 3, the control panel 10 of the copying machine of the present invention is provided with an ADF set button 11, which is used when manually selecting the automatic document feed mode. In addition, display lamps for manual, original selection, paper selection, etc. are provided depending on the selection mode, so that the copying mode selected by the operator can be displayed. Furthermore, the control panel 10 of the copying machine of the present invention includes a display window 12 for displaying commands output from the control device based on the detection of a document.
to provide necessary information to the operator when the copying operation cannot be continued.

Since the items output to the display window 12 are displayed as symbols, it is necessary to provide a comparison table of the symbols at a predetermined position in the copying machine of the present invention. .

As shown in FIG. 4, the tilIII device of the present invention connects a RAMSROM, an input/output control unit, etc.
Since it is configured to perform calculations based on the stored information and control the copying operation of the copying machine6, the CP
First, information such as the automatic document feeding mode and detection information of the paper size set in the copying machine is input to L115.

Then, the CPU 15 inputs the original detection information such as the original size and orientation detected by the sensor 7.8, compares it with the paper, and determines whether or not the copying operation can be continued. When the state allows copying,
The optical scanning member is instructed to operate and copies are made according to the set enlargement/reduction ratio.

In the copying machine of the present invention, as in conventional copying machines, when inserting a document into the automatic document feeder @1, it is natural to insert the document in both horizontal and vertical directions. is sometimes carried out. In other words, when inserting a document into the automatic document feeder in the longitudinal direction, and when inserting the document in the width direction,
Naturally, the width-to-length ratio will be different, and as a result, the magnification for enlarging/reducing the copy will be different.

Therefore, the sensor 7 formed in the front part of the automatic document feeder of the present invention is configured to detect both ends of the document and accurately detect the length of the document, and the sensor 8 is used to accurately detect the width of the document. It is designed to be able to be detected. Therefore, the size of the document inserted into the automatic document feeder 1 is determined by the sensor 7.8.
The detected information is input to the CPU 15 of I all i M, and the vertical and horizontal orientations of the document and the document size are automatically determined.

Information about the manuscript and CPLJ
15, perform calculations, select the paper and set the copy magnification, and then automatically feed the i! Activate the apparatus and the copy machine 1!14M and operate it to obtain a copy.

However, as a result of the comparison, if it is determined that the paper size is not appropriate for the original, the result is displayed on the display unit 12, a command is output to the automatic document feeder 1, and the paper is ejected. A command is output to eject the original onto a tray and change the orientation of the original by 90 degrees, or a command to change the paper while the original is set on the platen is output.

In other words, the control device of the present invention includes a table for selecting the relationship between the document and paper as shown in Table 1 and Table 2;
The basic information corresponding to the table showing the copy magnification selection is stored in the memory, and the information input to the control device is compared with the memory, the result is displayed on the display, and the automatic It will control the document feeder.

Table 1 shows the relationship between originals and paper. It shows the size of the paper set in the copier, its vertical and horizontal orientation, and the size of the original and the orientation of the inserted paper. Detection information is shown whether it is horizontal or vertical.
By comparison, the circle mark indicates a state in which copying can be performed immediately, and the other symbols J6 and J7 indicate that, for example, in the case of J6, the original is stopped on the platen and the paper is placed on another suitable surface. It requires that it be replaced,
The symbol J7 requests to eject the document to the ejection tray, change the orientation of the document, and re-insert the document.

In addition, the symbol J6-5 indicates that, for example, when the paper is not of a standard size and the automatic mode cannot be selected, copying is possible by performing manual operation.

In addition, what is shown in Table 2 shows the relationship between the manuscript and the paper in the case of automatic document selection, so the numbers listed in the table are as follows:
The enlargement/reduction magnification for copying the selected paper is shown in correspondence with the size of the original, and other symbols are shown in the same manner as in Table 1 above.

Then, when the copying machine cannot continue the copying operation, the display unit 12 formed on the control panel of the copying machine outputs a display with the above-mentioned symbol to inform the operator of the orientation of the document. The system instructs the copying machine to either change the paper size and reinsert it, or to load paper of an appropriate size into the copying machine, and then continues the copying operation after completing that task. If you want to make copies manually, press button 11 on the control panel 10.
By switching the copying machine from the automatic document feeding mode to the manual mode and performing the copying operation, it is possible to perform the copying operation even when the paper sizes do not match.

In the above embodiment, when the output from the CPL 115 is displayed on the display unit 12, it is displayed as a symbol, and the operator can select a label provided at a predetermined position of the copying machine based on the displayed symbol. However, in the device of the present invention, the display section is displayed in characters that are normally used without using symbols to speed up the operator's understanding. It is also possible to eliminate operational errors caused by misreading the list, etc., and these displays can be handled appropriately within the scope of the copier's CPtJ functions, and the configuration of the display section can be easily changed. becomes possible.

(Effects of the Invention) Since the copying machine of the present invention has the above-described configuration, the size of the inserted original can be checked when the copy vs. me automatic rough stone feeder is operated in the automatic document feed mode. It can automatically detect and automatically select the appropriate paper and copying magnification.

Further, in the copying machine of the present invention, when the copying mode is set to automatic document feeding mode, the conditions of the document inserted into the automatic document feeder do not match the paper stored in the copying machine. Sometimes, the status is displayed on the display,
In order to be able to give the necessary instructions to the operator,
The operator can respond easily and quickly.

Therefore, when copying is performed using the apparatus of the present invention, even an operator who is not skilled in operating a copying machine can perform the copying operation very easily, and the efficiency of copying is greatly improved. becomes possible.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the configuration of the automatic document feeder of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is an explanatory diagram showing the configuration of the controller 1 to the roll panel, and FIG. FIG. 2 is an explanatory diagram showing the control device of the present invention, and Table 1 and Table 2 are tables showing contents stored in the control device of the present invention, respectively. Reference numerals in the figure 1... Automatic document feeder, 2... To document transport bell 1, 3... Pad, 4...
Drive roller, 5...Guide plate, 6...
Hole, 7, 8...Sensor, 9...Platen, 10...Control roll panel, 11...
...Button, 12...Display section, 15...
...CPU, 16...Output device. Purchase 1st (self-F paper selection) ■, 8I, Table 2 Procedure Neyama Seisho (Method) July 12, 1985

Claims (1)

[Claims] In a copier equipped with an automatic document feeder that is configured to automatically select the same size or enlarged/reduced copy mode depending on the combination of the original size and copy size, the size and orientation of the fed original, etc. A device is provided to detect this, and the detected information is input to the control device, and the control device compares the original size and the copy size, and in the case of an unfavorable combination, stops the original on the platen. Alternatively, a document feeding device characterized in that it is configured to eject documents to a document tray and to display necessary instructions.