JPH05210270A - Copying machine - Google Patents

Abstract

PURPOSE:To simplify an operation at an interruption time by copying one sheet by using an interruption function when an original is fed after the absence of the original on an original platen is detected while plural sheets are in copying. CONSTITUTION:A means for setting the number of copied sheets 21, an original detecting means for detecting the presence or absence of the original on the original platen 22, a copying mechanism 23, an original feeding means 24, an original ejecting means 25 and a display means 26 for displaying a message are individually connected with a CPU 20. And while plural originals are in copying and in the case that the original is fed after the absence of the original on the original platen is detected by the original detecting means 22, one sheet is copied by using the interruption function. Then, in the case of copying just one sheet by using the interruption function, the ejection of the former original and the supply and copying of the interrupting original can be performed without stopping the device, so that the operation by the user is reduced, and also, the copying time is shortened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a copying machine, and more particularly to an interrupt function of the copying machine.

[0002]

2. Description of the Related Art Conventionally, when it is desired to make a copy, the original cover is raised, the original is set at a predetermined position, and the print key is pressed to start copying. In addition to this, in a copier having an automatic document feeder that automatically feeds the document to be copied and discharges it after the copy is completed, in addition to the ADF (Auto Document Feeder) mode in which multiple documents are sequentially fed, SDF (Semi-auto) starts copying automatically when a single document is inserted into the document feed port on the document tray.
Document Feeder) mode is also set. Also, R
There is also a mode, such as ADF (Reversing Automatic Document Feeder), in which a conveyed document is turned upside down and returned to the contact glass again to prepare for the next document copy.
As shown in FIG. 3, the automatic document feeder 10 is usually provided on the upper part of the copying machine main body 11. Documents are placed on the document table
After being placed on the sheet 12 and automatically conveyed, in the normal ADF or SDF mode, it is discharged to the document discharge table 13
In the ADF mode, the document ejection table 13 or the document pressing table 14
To be selectively discharged.

[0003]

In a copying machine equipped with an automatic document feeder as described above, without using the automatic document feeder, i.e., the original cover is lifted to set the originals, for example, 200 sheets are set. When copying is performed by interruption during the copy operation, the procedure is as follows. 1. Press the interrupt key. 2. After stopping the machine, lift the document cover and remove the document. 3. Place the manuscript. 4. Start copying. 5. Press the interrupt key to cancel the interrupt. 6. After the interruption, remove the interruption original. 7. Place the original document and let the copy continue. However, in order to place the document No. 3, when the ADF or SDF mode is used, the document may be placed on the document placing table of the automatic document feeder. At this time, the document is automatically ejected, so 6 It becomes unnecessary. At the time of interruption, the complicated procedure as described above is required, and even if the ADF mode or the SDF mode is used, these operations are not alleviated so much and a problem such as forgetting to cancel the interruption occurs. SUMMARY OF THE INVENTION It is an object of the present invention to provide a copier that solves such a problem, simplifies the interruption work, and reduces the burden on the user.

[0004]

In order to achieve the above object, the copying machine of the present invention is provided with an automatic document feeding mechanism, a detecting means for detecting the presence or absence of an original on the original placing table, and a copying operation for a plurality of sheets. When the document is fed after the detection unit detects that there is no document, the interrupt function is activated to make one copy.

[0005]

With this arrangement, when copying only a part by interruption, the original document can be discharged and the interrupted document can be fed and copied without stopping the apparatus.
The work of the user can be reduced, and the copy time can be shortened.

[0006]

Embodiments of the present invention will now be described with reference to the drawings.
explain. FIG. 1 shows a flowchart of the operation of the copying machine embodying the present invention. When this flowchart is started in step # 100, first, the document is set, and then step # 1
In 05, the number of copies is set. This document setting may be performed on the document placing table of the automatic document feeder or by raising the document cover. Then, in step # 110, the print key is pressed. The flag FLAG is set to 0 in step # 115, and the copy operation is performed in step # 120. The copy operation in this flowchart is one copy. The number of copies is step # 105 in step # 125
Check if the number of sheets set in is reached. If it is determined that the set number has been reached, the process ends in step # 130. If it is determined in step # 125 that the number of copies has not reached the set number of copies, it is checked in step # 135 whether there is a document on the document table of the automatic document feeder. If there is no document on the document table, the flag FLAG is set in step # 140.
Is set to 1. FLAG is a flag indicating that the original before interruption is not present on the original placing table, that is, the original under the original cover is the last original. Therefore, when FLAG is 1 and it is recognized that there is a document on the document table, it is understood that it is an interrupt document. If it is determined in step # 135 that there is a document on the document table, it is checked in step # 145 whether FLAG is 1. If FLAG is not 1, it is the original document before interruption which is about to be copied in the ADF mode or the like. Therefore, the process returns to step # 120 and the copy operation is continued. If FLAG is 1 in step # 145, the original on the original table is an interrupt original.
It becomes an interrupt process. In step # 150, the interrupt mode is set, and in step # 155, the document before interruption is discharged. In step # 160, the interrupt original is fed from the original table, and in step # 165, the copy operation is performed. In step # 170, check whether there is a document on the document table. If there is, the document is fed in step # 175, and step # 1
Return to 65. If there is no manuscript, the interrupt mode is released in step # 180, a message such as "Restore the manuscript" is displayed in step # 185, and the process returns to step # 110. Here, if the original before interruption is set again and the print key is pressed in step # 110, the setting before interruption is restored and copying is continued.

In the flow chart shown in FIG. 1, when the interrupt does not occur and a plurality of original originals remain on the original placing table, the FLAG setting and judgment are accurate, but normal copying is performed. The operation is not well described. However, since this flowchart is for explaining the interrupt, it is omitted.

The operations of the above-described flowchart of FIG. 1 are all executed by the microcomputer (CPU) mounted in the copying machine except for steps # 105 and # 110. As shown in FIG. 2, the CPU 20 is provided with a number setting means 21 for setting the number of copies, an original detection means 22 for detecting the presence or absence of an original on the original table, a copying mechanism 23 for making a copy, and an original feeding. A document feeding means 24 for carrying out, a document discharging means 25 for discharging a document, and a display means 26 for displaying a message are respectively connected.

Although not particularly specified in this embodiment,
When the document before interruption is ejected after the interruption mode is set, it is also possible to control so as to change the ejection direction and the ejection direction of the interruption document at the time of the interruption process thereafter. Specifically, for example, in the automatic document feeder 10 shown in FIG. 3, the original document is discharged to the document discharge table 13 and the interrupt document is discharged to the document pressing table 14 side. By doing so, it is possible to prevent the mixed output documents.

[0010]

As described above, according to the present invention,
Interrupt processing can be performed without stopping the device. Moreover, the original document is ejected before the interruption and the interruption original is fed.
Since copying and discharging are automatically performed, the number of man-hours required for the work of the user can be significantly reduced, and the time required for copying can be shortened. Further, although it is an interrupt process, since there is no need to operate the interrupt key, a problem such as forgetting to cancel the interrupt after the interrupt process does not occur.

[Brief description of drawings]

FIG. 1 is a diagram showing a flow chart of a copy operation of a copying machine embodying the present invention.

FIG. 2 is a block diagram of a copying machine embodying the present invention.

FIG. 3 is a sectional view of a copying machine.

[Explanation of symbols]

 10 Automatic document feeder 11 Copier main body 12 Original placing table 13 Original ejecting table 14 Original pressing table 20 CPU 21 Number of sheets setting means 22 Original detecting means 23 Copying mechanism 24 Original feeding means 25 Original ejecting means 26 Displaying means

Claims (1)

[Claims] 1. A document automatic feeding mechanism, a detection unit for detecting the presence or absence of a document on a document mounting table, and a document feeding operation after the detection unit detects that there is no document during the copying operation of a plurality of sheets. And a means for activating the interrupt function to make a copy of one copy.