JP2812835B2 - Copier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a circulating document feeder for sequentially circulating a plurality of documents while passing through an optical scanning position. The present invention relates to a copying machine that can be used.

[0002]

2. Description of the Related Art Conventionally, some copying machines have a circulation type document feeder which circulates a plurality of documents sequentially while moving them to a predetermined optical scanning position in accordance with a copying operation. The recirculating document feeder is arranged on a copying machine main body, and sequentially conveys documents loaded on a document placing portion to an optical scanning position, and circulates the document according to a preset number of copies. It has become. Therefore, for example, when the number of originals is large, or when it is necessary to copy a large number of originals in plural copies, it is necessary to set the originals one by one on the original mounting table and to remove the originals after the copying is completed. In comparison, the time required for the copying operation can be greatly reduced.

In the case where another original is interrupted during copying of a plurality of originals by using the above-mentioned circulating original conveying apparatus, the use of the circulating original conveying apparatus is temporarily stopped. Means, for example, a document for interrupt copying is placed on a document table, and interrupt copying is performed.

[0004]

However, in the above-mentioned conventional copying machine, when performing interrupt copying, it is not possible to use a circulating document feeder with high working efficiency, and a document table or the like must be used. As a result, extra time is required for setting and removing originals, and a problem arises in that the original capability of the apparatus cannot be utilized.

The copying machine of the present invention has been made in view of the above-mentioned conventional problems, and has as its object to perform interrupt copying using a circulating document feeder having high working efficiency. An object of the present invention is to provide a copying machine that can make full use of its capabilities.

[0006]

According to a first aspect of the present invention, there is provided a copying machine in which a plurality of originals are circulated while sequentially passing through an optical scanning position, and the first original is firstly moved.
In a copier equipped with a circulating document feeder having a first document wrap detecting means for detecting that a document has made a cycle in the circulating document feeder, a second document for detecting one cycle of a second document for interrupt copying. One cycle detection means is provided in the circulating document transport means, and a plurality of copies of the first document are provided.
Kicking during copying up copies way, when an interrupt copying of the second document is designated, specifications takes the portion of the first document in the middle
Detecting the number of copies by the first original round detection means
After finishing to the last sheet , stack it on the first document
Interrupt copying of the second document placed Te, the second document round
Perform until the detection is completed by the detection means ,
In addition, one round of the first document to return to the loading state at the time of interruption
It is characterized in that a control means is provided for controlling so as to circulate in the circulating-type document conveying means without copying the first document continuous with the second document until detection by the informing means .

According to a second aspect of the present invention, there is provided a copying machine according to the first aspect.
Te, the above-mentioned circulating type document conveying means, and discharge means for discharging the second document after the interrupt copying ends, with a stacking means for stacking the second document that is discharged is provided, the first
The one original round detection unit and the second original round detection unit are activated.
And the control means further comprises:
After the interruption copy of the second document is completed, the second document is discharged by the discharge unit, and when the discharge of the second document is completed, control is performed so that copying of the first document is restarted.

Further, the copying machine according to the invention of claim 3, in order to solve the above problems, Rutotomoni is circulated while passing sequentially the optical scanning position a plurality of originals, the first document circulation type document conveyance in the copying machine having a recirculating document feeder having a first original round detection means detects that the cycle through the unit, the said circulating original conveying means, for detecting a round of the second document to be an interrupt copying A second document cycle detecting means, a third document cycle detecting means for detecting a copy restart position of the first document in process when interrupt copying of the second document is designated, and an interrupt copying of the second document; But
When specified, the first original in the process of being processed
The interruption copy of the second document stacked and placed on the document is terminated by being detected by the second document cycle detecting means.
Until it completes , and return to the mounting state at the time of the interrupt.
Until the third original round detection means detects the second original.
Circulation type document conveyance without copying the first document successive
It is characterized in that control means for controlling so as to circulate in the means is provided.

[0009]

According to the first aspect of the present invention, when the interruption copy of the second document is designated during the copying of the first document, the in-process halfway process is performed according to the detection signal from the first document round detection means. After copying the first original up to the last sheet of the number of copies ,
Thereafter, it is controlled to perform interrupt copying of the second document. Also, at the time of interrupt copying of the second original, the first
Interruption of the second document stacked on the document
The photo is detected by the second original round detection means.
Until the process is completed, and return to the mounted state at the time of interruption
Until the first original round detection unit detects the second original,
The first original continuous with the second original is circulated without being scanned by the optical scanning, and the desired number of copies of the second original are copied in accordance with the detection signals from the first original full-circle detecting means and the second original full-circle detecting means. can do. Therefore, the interruption copying can be performed by using the circulation type document conveying means having a high working efficiency, so that the original capability of the apparatus can be fully utilized.

According to the second aspect of the present invention, the second manuscript after the desired number of copies has been completed is discharged to the stacking means by the discharge means in response to the detection signal from the second manuscript round detection means. When the ejection of the two originals is completed, the copying operation of the first original is controlled to be restarted. Therefore, there is no need for the operator to remove the second document after the completion of the interrupt copying or to instruct the restart of copying of the first document, and the process until the restart of copying of the first document is automated. The work efficiency can be prevented from lowering without requiring time.

According to the third aspect of the present invention, when interrupt copying is designated, even if the first document is in the process of being processed, the third document cycle detecting means resumes copying of the first document after the end of interrupt copying. Since the position is detected, the interrupt copy of the second document can be started immediately after the interrupt copy is designated. Therefore, for example, even when there are a large number of original documents remaining in process, there is no need to wait for the start of interrupt copying until the current document is completed, and the work efficiency can be further improved.

[0012]

[Embodiment 1] An embodiment of the present invention will be described below with reference to FIGS.

In the copying machine according to the present embodiment, as shown in FIG. 2, a circulating document feeder (hereinafter referred to as RDH) 2 as a circulating document feeder is disposed above a copying machine main body 1. In addition, a document table 3 is provided adjacent to the RDH 2. Original table 3 made of translucent glass
Is covered with a document cover 4 that can be freely opened and closed, and the document cover 4 presses and holds a document (not shown) placed on the document table 3. As a result, it is possible to copy not only one or a small number of originals that do not need to use the RDH 2 but also a large original or a thick original that cannot be transported by the RDH 2.

An optical system 10 including mirrors 5 to 8 and a lens 9 is arranged below the RDH 2 and the document table 3. The optical system 10 irradiates the document with the light emitted from the light source 11, performs optical scanning, takes in the reflected light from the document, and guides it to the photosensitive drum 12. Light source 1
1 performs optical scanning while moving along the document table 3 when copying a document placed on the document table 3, and performs optical scanning (described later) when copying using the RDH 2. Optical scanning is performed via the scanning window 64 or the optical scanning window 65 (see FIG. 3).

Below the optical system 10, the photosensitive drum 12 is disposed so as to be rotatable clockwise in FIG. Around the photosensitive drum 12, a charger 13, a developing device 14, a transfer device 16, a peeling device 17, a cleaning device 1
8, a copy processing unit 20 provided with a static elimination lamp 19 and the like.
Is configured. The copying process unit 20 includes the optical system 10
The electrostatic latent image formed on the photosensitive drum 12 is developed as a toner image by light from the
The toner image is transferred to copy paper supplied from the intermediate tray 35 or the intermediate tray 28.

A transport belt 22 and a fixing unit 23 are arranged on the paper output side of the copy processing unit 20. The copy paper subjected to a predetermined copying process in the copy processing unit 20 is fixed by the transport belt 22 to the fixing unit 23. The fixing unit 23 heats and fixes the toner image transferred onto the copying paper.

A transport switching unit 24 is provided on the paper output side of the fixing unit 23.
Is provided. The transport switching unit 24 determines the path of the copy sheet from the offset tray 31 serving as a sheet discharging unit to the intermediate tray 2.
A gate flapper 27 for switching to any one of the eight sides is provided. In the case of single-sided copying, the copy sheet is discharged onto the discharge tray 80 of the offset tray 31 via the reversing roller 26. The offset tray 31 can adjust the height of the discharge tray 80 according to the number of discharged copy sheets.

In the case of double-sided copying, the copy sheet is transported to the reverse transport section 25 having the gate flapper 30 and the transport direction is reversed by the reverse roller 29.
Is discharged into On the other hand, in the case of composite copying, that is, when copying is performed a plurality of times on the same front side of a copy sheet, the fixing unit 2 is used.
3 is once led to the reversing roller 26,
Here, the transport direction is reversed and sent to the reverse transport section 25,
After the transport direction is once again reversed, the sheet is discharged to the intermediate tray 28.

An intermediate tray 28 as a sheet re-feeding means is disposed below the transport belt 22 and the fixing unit 23. The copy sheet in the intermediate tray 28 is sent to the photosensitive drum 12 side at a predetermined timing sequentially from the lowermost one by an air suction type sending belt 32 provided on the sheet output side. A paper feed cassette 34 is disposed below the intermediate tray 28, and paper feed cassettes 33 and 35 are disposed below the developing device 14. In the paper feed cassettes 33 to 35 serving as paper feed means, uncopyed copy papers are loaded, and the air suction type paper feed belts 37 to 39 provided on the paper output side start from the uppermost one. Paper is fed sequentially.

Intermediate tray 28 and paper feed cassettes 33-3
5 and the photosensitive drum 12, each paper feed cassette 33
There is provided a supply and transport section 41 having a transport path 41a branched to the side of .about.35 and a plurality of transport rollers 41b.
A registration roller 42 is provided at the end of the supply / conveyance unit 41 on the side of the photosensitive drum 12 to temporarily stop the conveyed copy sheet as necessary and then supply the copy sheet to the photosensitive drum 12 at a predetermined timing. ing.

Next, RDH2 will be described in more detail.

As shown in FIG. 3, the RDH 2 includes a document placing section 43, a supply and transport section 44, rotating drums 45 and 46, a reverse transport section 47, and a return transport section 48. The original placing section 43 is composed of an upper horizontal transport section of the transport belt 49 and an original hopper 50, and a plurality of originals Da... Db. It is designed to be placed on a horizontal part. The originals Da... Db are provided above the output side of the original placing portion 43.
Are provided at a predetermined timing.

The transport belt 49 is driven by being wound around drive rollers 53. The originals Da... Db returned through optical scanning, which will be described later, are inserted below the original hopper 50. I have. Also, in order to facilitate insertion of the originals Da... Db.
Db ... A flip-up roller 54 for flipping the rear end is provided.

The original hopper 50 is provided with a first detecting actuator (first original cycle detecting means) 50a for detecting one cycle of the first original Da placed first. Before the first detection actuator 50a is set on the document hopper 50, the first document Da is placed at a lowermost position shown by a solid line in the drawing, and the first document Da is placed thereon. The first detection actuator 50a is connected to the first original D
are supplied one by one, and are raised as they are returned from the return transport unit 48, and reach the uppermost position indicated by the two-dot chain line in the figure when all the first originals Da. At this time, the first detection actuator 50a that has reached the uppermost position is detected by the first document cycle detection sensor (first document cycle detection means) 55a disposed above the document hopper 50, and the fact that one cycle has been completed. Is generated. By using this detection signal, it is possible to control the number of copies and the like. After one cycle of the first document Da... Is completed, the first detection actuator 50a rotates 180 ° via the outside of the document hopper 50 and returns to the lowermost position shown by a solid line in the drawing.

The original hopper 50 further includes a second detecting actuator (second original round detecting means) 50b for detecting one cycle of the second originals Db... Placed for performing interrupt copying. I have. The second detection actuator 50b is located on the first document Da before setting the second document Db on the document hopper 50, and the second
Documents Db ... are placed. Second detection actuator 5
0b is raised as the second originals Db are supplied one by one and returned from the return transport unit 48, and the second originals Db.
Reaches the uppermost position when all the sheets have been fed. At this time, the second detection actuator 50b that has reached the uppermost position is detected by the second document cycle detection sensor (second document cycle detection unit) 55b disposed above the document hopper 50, and the 100% sheet feeding is completed. Is generated. By using this detection signal, it is possible to control the number of copies and the like. After the second document Db is completely fed, the second detection actuator 50b rotates by 180 ° via the outside of the document hopper 50 and returns to the lowermost position.

The supply / conveyance section 44 includes a conveyance path 56, separation rollers 57/57, a plurality of conveyance rollers 58 arranged at predetermined intervals, and registration rollers 59/59. The transport path 56 is provided from a paper output side of the document placing section 43 to a paper input section 60 a of an outer peripheral transport path 60 described later. The separation rollers 57, 57 are provided slightly inward from the paper entrance opening of the transport path 56, while the registration rollers 59.5
Reference numeral 9 is provided near the paper input section 60a.

The separation rollers 57 are driven by a pair of upper and lower rollers being rotated in the same direction so that two or more originals Da... Db. To prevent double feed. On the other hand, the registration rollers 59 stop the originals Da... Db conveyed by the conveying rollers 58... Once as necessary, and supply them to the rotating drum 45 at a predetermined timing.

The rotating drums 45 and 46 are both driven to rotate clockwise in the drawing, so that annular outer conveying paths 60 and 61 can be formed along the respective outer peripheral surfaces. . In the outer transport paths 60 and 61,
A plurality of driven rollers 62... 63 are rotatably provided at intervals so as to contact the outer peripheral surfaces of the rotating drums 45 and 46. The driven rollers 62 ... 63 are originals Da ...
Db ... is pressed against the rotating drums 45 and 46 to assist the conveyance.

Light scanning windows 64 and 65 made of glass are provided at portions of the upper end surface of the copying machine main body facing the lower ends of the rotating drums 45 and 46, respectively. Through the light source 11 (see FIG. 2)
.. And Db... Are optically scanned.

Each of the paper output sections 60b of the outer transport paths 60 and 61
61b are provided with gate flappers 66 and 67 for switching the course of the originals Da... Db. The gate flapper 66, 67 closes the paper output sections 60b, 61b of the outer peripheral transport paths 60, 61 as shown by the two-dot chain line in performing multiple optical scanning of the same document for multi-copy. The outer peripheral conveying paths 60 and 61 are formed around the rotating drums 45 and 46 so that the original is
Can be circulated a desired number of times around the.

When the optical scanning has been completed a predetermined number of times or when the optical scanning is not performed, the gate flapper 66 is rotated to the position indicated by the solid line to close the upper half of the outer transport path 60, and the original D
.. Db are formed to the reverse transport section 47, while the gate flapper 67 is rotated to the position indicated by the solid line to close the upper half of the outer transport path 61 and return the originals Da. A passage leading to the transport unit 48 is formed.

The reversing conveyance section 47 includes conveyance paths 68 and 69,
., A gate flapper 72, registration rollers 73, 73, and a reversing roller 7.
4.74. One end of each of the transport paths 68 and 69 has a paper output portion 60 b of the outer peripheral transport path 60 and the outer peripheral transport path 6.
The other end is connected to the reverse conveyance path 70 while being connected to the first paper input section 61a.

The delivery rollers 71 are provided in the vicinity of the confluence of the conveyance paths 68 and 69 to send the originals Da... Db to the reverse conveyance path 70 or to the rotating drum 46, and to control the gate flapper 72. .. Db... Are switched. The registration rollers 73 are provided in the vicinity of the paper input section 61a in the conveyance path 69, and temporarily stop the documents Da... Db. It is supposed to. The reversing rollers 74 are provided in the reversing conveyance path 70, and reversing the rotation direction reverses the conveyance direction of the originals Da... Db.

The return transport section 48 has a transport path 75 and a plurality of transport rollers 76. The transport path 75 is provided from the paper output section 61 b of the outer peripheral transport path 61 to the transport belt 49. The transport belt 49 constitutes a part of the document placing section 43, but also functions as a return transport section 48, and places the originals 51 returned via the transport path 75 on the original placing section 43. It is transported to the section 43. For this reason, the conveying belt 49 is provided with a call-in roller 77 in the vicinity of the paper exit side opening of the conveying path 75, and the originals Da... Db. 49 is supported.

Next, the control system will be described.

As shown in FIG. 4, the control system includes a microcomputer 204 as control means.
And RDH2 are controlled in relation to each other.

The photosensitive drum 12, the copying machine body 1, and the R
A plurality of motors M1 to Mi (FIG. 2) for driving each rotating component such as each of the transport rollers 41b.
And not shown in FIG. 3) are connected to a motor driver 200, a plurality of clutches CLT1 to CLTi for intermittently driving the respective registration rollers 42 and 59 are connected to a clutch driver 201, and each gate flapper 27・ 3
A plurality of solenoids SOL1 to SO for driving 0, etc.
Li is connected to the solenoid driver 202.

Then, each of these drivers 200 to 20
2. DC power supply 79, a plurality of detection sensors S for detecting that copy paper or document Da... Db.
Control elements such as 1 to Si, which are used for document conveyance control, copy paper conveyance control, and control of the copy processing unit 20, are connected to the interface circuit 203. The interface circuit 203 is connected to the microcomputer 204, outputs detection signals from the detection sensors S1 to Si to the microcomputer 204, and controls and operates each of the drivers 200 to 202 according to a control signal from the microcomputer 204. It is made to let.

The microcomputer 204 has a ROM (Re
ad Only Memory) 205 and RAM (Random Access Mem)
ory) 206 and controls according to a control program stored in the ROM 205 in advance. The ROM 205 stores a control procedure for performing double-sided copying from a single-sided document, a control procedure for performing interrupt copying as shown in FIG. 1, and the like. On the other hand, RAM
Reference numeral 206 denotes a buffer memory or a flag, a counter, a timer, or another calculation area necessary for copy control.

The interface circuit 203 is connected to the light source 11 via a triver 207 and a light control unit 208. The interface circuit 203 is connected to operation keys 211 on an operation panel 210 described later, and is also connected to a display device 213 via a display driver 212.

As shown in FIG. 5, the operation panel 210 has ten keys 211a for setting the number of copies, a clear key 211b for clearing the set number of copies, and RD.
An RDF select key 211c for selecting a copy mode when performing copying while sequentially circulating a plurality of documents using H2, and an ADF for selecting an ADF mode for continuously copying a desired number of copies from one document. A key 211d, a print switch 211e for instructing the start of copying, an interrupt key 211f for setting an interrupt mode, a set display unit 213a for displaying the set number of copies, a count display unit 213b for counting and displaying the number of copies, R
Mode display sections 213c to 213f for displaying which of the four copy modes using DH2 is selected;
A indicating whether or not the ADF mode is selected
The DF display unit 213g is provided.

The mode display unit 213c displays a mode for performing one-sided copying from a one-sided original, and displays the mode display unit 213c.
“d” indicates a mode for performing double-sided copying from a single-sided document, the mode display unit 213e indicates a mode for performing single-sided copying from a double-sided document, and the mode display unit 213f indicates a mode for performing double-sided copying from a double-sided document. Each time the RDH select key 211c is pressed once, the mode display unit 213c
213f is sequentially switched from the uppermost position to the lower position, and the mode display portion 213c at the uppermost position is turned on again after the mode display portion 213f at the lowermost position. In a normal copying operation, when the interrupt key 211f is pressed once, an interrupt mode is set, and when the interrupt key 211f is pressed again, the interrupt mode is released.

In the above configuration, RDH2 shown in FIG.
Are sequentially taken out from the topmost one and transported to the rotating drum 45 by the supply / delivery unit 44. The original Da reaching the lowermost portion of the rotating drum 45 is optically scanned by the light source 11 (see FIG. 2) as necessary, and then sent out to the rotating drum 46 in a state where the transport direction is reversed by the reverse transport unit 47. Is done. The document 51 that has reached the bottom of the rotating drum 46 is conveyed to the conversion conveyance unit 48 after the surface is optically scanned by the light source 11 as necessary, and is conveyed to the bottom of the document placement unit 43 by the conveyance belt 49. Inserted. On the other hand, a document (not shown) placed on the document placing table 3 shown in FIG.

The reflected light obtained from the original by the above optical scanning exposes the photosensitive drum 12 via the optical system 10. The photosensitive drum 12 is charged to a predetermined potential by applying a charge to a surface thereof by a charger 13 prior to exposure, and an electrostatic latent image corresponding to an image of a document is formed on the surface by the above exposure. . The electrostatic latent image becomes a toner image by being developed by the developing device 14. On the other hand, the paper 21 supplied from the paper feed cassettes 33 to 36 is transported via the supply transport unit 41,
Is transmitted to the lower portion of the photosensitive drum 12 at a timing synchronized with the rotation of the photosensitive drum 12.

The toner image formed on the photosensitive drum 12 is transferred to the paper 21 by the transfer device 16 and is separated from the photosensitive drum 12 by the peeling device 17, and then transported to the fixing unit 23 by the transport belt 22. Is done. After the transfer of the toner image onto the paper 21, the photosensitive drum 12 is cleaned of the residual toner by the cleaning device 18, is uniformly discharged by the discharging lamp 19, and is charged again by the charger 13.

The paper 21 on which the toner image is transferred is
When the toner image is heat-fixed by the fixing unit 23, in the case of single-sided copying, the toner image is discharged to the offset tray 31 via the transport switching unit 24. In the case of performing double-sided copying, the sheet 21 after fixing is guided to the reversing conveyance section 25 by the gate flapper 27 of the conveyance switching section 24, while in the case of performing composite copying, the sheet 21 is once conveyed to the reversing rollers 26, 26 and reversed. Roller 26
26, the layer is reversed to the reverse transport section 25. Paper 21
Are sent out in a state where the transport direction is reversed, and are stacked on the intermediate tray 28. The stacked sheets 21 are taken out from the lowermost end of the intermediate tray 28 and conveyed through the supply / conveyance unit 41, and the copy process is performed on the back side as well as the front side in the copy processing unit 20. And
After the fixing process by the fixing unit 23 is performed, the sheet is discharged to the offset tray 31 via the transport switching unit 24 in the same manner as in the case of one-sided copying.

Next, during the copying operation of the first document Da,
FIG. 1 shows a processing procedure for interrupting copying of originals Db.
And the flowchart of FIG.

First, a predetermined number of the first originals Da are turned over, that is, the surface on which the image is formed is turned downward, and the original placing section 4 is arranged in the page order so that the original of the last page comes to the uppermost position.
After the lamination of No. 3, initialization is performed (S1). In this state, for example, a double-sided copy mode from a single-sided original is selected by the RDH select key 211c, and the number of copies is set by the ten keys 211a (S2). When the power is turned off in this state, the copying operation is terminated. On the other hand, when it is determined that the power is not turned off (S3), it is subsequently determined whether or not a copy start signal is input by pressing the print switch 211e. It is determined (S4). If the input of the copy start signal is not determined, S2 to S4
When the input of the copy start signal is determined while the first process is repeated, the first document cycle device including the first detection actuator 50a and the first document cycle sensor 55a operates (S5), and the first document cycle device is operated. The copying operation of the originals Da is started (S6). During the copying of the first manuscript Da ...
It is determined whether the interrupt key 211f is pressed and an interrupt signal is input (S7). If the input of the interrupt signal is not determined, the number of copies set in S2 matches the number of copies actually made. Is determined (S
8) If it is determined that they do not match, the processing of S6 to S8 is repeated. If the number of copies matches the number of copies, the copying operation is terminated (S9), the settings are cleared (S10), and S2 is executed again.

On the other hand, in S7, the interrupt key 211
If it is determined that an interrupt signal has been input from f, S11 shown in FIG. 1 is executed to determine whether or not a detection signal has been input from the first document cycle sensor 55a. If it is determined that the detection signal has not been input, that is, if the first documents Da are in the process of being processed, the copying operation is continued until the number of copies in progress is completed (S12). On the other hand, the first document cycle detection sensor 55
If it is determined that the detection signal is input from the a, the copying operation is temporarily stopped (S13).

Next, the setting data for copying the first document Da... Is stored in the RAM 206 (S14), the display device 213 is cleared to return to the default state, and the second detection actuator 50b and the second document round detection are performed. The second document cycle detection device including the sensor 55b operates (S15). That is, the second detection actuator 50b
Move to the uppermost position of the original Da, and in this state, the second original Db to be subjected to interrupt copying is turned over on the second detection actuator 50b, and the surface on which the image is formed is set to face down. When the RDH select key 211c selects, for example, a double-sided copy mode from a single-sided original and sets the number of interrupted copies by using the ten keys 211a (S16), the second original D
are determined to be the same size as the first document Da (S17).

The size of the second originals Db...
Are different from each other, an error message is displayed on the display device 213 (S18), and S16 to S17 are re-executed. On the other hand, if the first document Da. Is determined whether an interrupt copy start signal is input from the print switch 211e (S19). If it is determined that the interrupt copy start signal has been input, S20 is executed to perform the interrupt copy operation of the second originals Db... If the interrupt copy start signal has not been determined, the interrupt copy is performed. The apparatus enters a standby state until a start signal is input. The interrupt copying operation (S20) is continued until it is determined in S21 that the detection signal from the second document cycle sensor 55b is input.

On the other hand, in S21, if it is determined that the detection signal is input from the second original cycle detection sensor 55b, the second originals Db are positioned below the first originals Da in this state. Until the detection signal of the first document round sensor 55a is determined in S23, the skip operation of the first document Da that is not copied at the time of interrupt copying is performed (S22). When the first originals Da are all skipped and the first detection actuator 50a reaches the uppermost position of the originals Da... Db..., The detection signal from the first original cycle detection sensor 55a is input, and S1 is output.
It is determined whether or not the number of interrupts set and the number of copies in step 6 match (S24). If it is determined that they do not match, the processes of S20 to S24 are repeated.

If it is determined in step S24 that the interrupt setting copy number is equal to the copy number, the interrupt copying operation is stopped (S25). Then, the interrupt key 21
It is determined whether the interrupt release signal has been input by pressing 1f again (S26), and the processing of S16 to S26 is repeated until the input of the interrupt release signal is determined. In the state where the interrupt copying operation is stopped in S25, the second originals Db.
Are located at the uppermost position of the second original Db,.
Is removed from the document placing section 43, and the interrupt key 21
If 1f is pressed again, it is determined in S26 that the interrupt mode has been released, and then the second document circulation device stops and various setting data of the first document Da stored in the RAM 206 is restored. (S27),
The display state of the display device 213 is returned to the state before the interruption copy. Thereafter, the print switch 211e is pressed, and the copier is in a standby state until the input of a copy start signal is determined in S28. When the copy start signal is input, S8 shown in FIG. The copying operation is repeated until the number of copies of one document Da ... matches the set number of copies in S2.

As described above, in the copying machine according to the present embodiment, when the interrupt mode is set during the copying of the first originals Da by the RDH 2, the first originals Da. Copying is performed until the detection signal from the detection sensor 55a is input, that is, until the number of copies in progress is completed, and the first originals Da are all returned to the original placing section 43. In this state, the first document Da ...
Above, a second detection actuator 5 for an original for interruption
0b is set, and a second original Db... Having the same size as the first original Da.
By the operation of the second document cycle detection sensor 55b, one cycle of the second document Db is detected, and a desired number of copies are made. At this time, the second original D
are placed under the second document Db.
.. Are skipped according to the number of copies. That is, the first originals Da are the rotating drums 45 and 46.
When transported, it is only circulated without optical scanning.
You.

Therefore, a desired number of copies can be made by using the RDH 2 with good work efficiency, and the time required for the interrupt copying can be reduced. As a result, the inherent capability of the device can be fully utilized.

Embodiment 2 Next, another embodiment of the present invention will be described with reference to FIGS. 7 and 8. For convenience of explanation, members having the same functions as those shown in the drawings of the above-described embodiment are denoted by the same reference numerals, and the description thereof will be omitted. As shown in FIG. 7, the RDH 2 provided in the copying machine according to the present embodiment includes a transport path 75 as a discharging unit, a plurality of transport rollers 7.
.., A gate flapper 78, interruption original sending rollers 82, 82, and a discharge sensor 79. The transport path 75 is provided between the transport rollers 76.
.. Db... Are switched. A discharge tray (stacking means) 81 is provided below the transport belt 49. The second originals Db for interruption discharged to the discharge tray 81 through the transmission rollers 82 for interrupted originals are counted by a discharge sensor 79 provided near the transmission rollers 82 for interrupted originals. Has become. The discharge sensor 79 has a function of detecting a jam as well as a count of discharged documents.

In the above configuration, the processing procedure at the time of interrupt copying will be described with reference to the flowchart of FIG.
In the present embodiment, the processing procedure until the interrupt mode is designated and the processing procedures from S11 to S21 in FIG.

When the interrupt copying operation is started and the input of the detection signal from the second original cycle detection sensor 55b is determined in S21, 1 is determined from the interrupt setting number in S16.
It is determined whether the number of copies is equal to the actual number of copies (S29). Here, if it is determined that the number of copies obtained by subtracting one copy from the interrupt set number does not match the number of copies, the first original is not processed until the detection signal from the first original cycle sensor 55a is determined (S31). Are skipped (S30). On the other hand, if it is determined in step S31 that the detection signal from the first document cycle detection sensor 55 has been input, the process proceeds to steps S20 to S3 until it is determined in step S29 that the number of copies obtained by subtracting one from the interrupt setting number is equal to the number of copies.
1 is repeated.

When it is determined in step S29 that the number of copies obtained by subtracting one from the set number of copies is equal to the number of copies, the paper feed by the RDH 2 is stopped, and the conveyance path 75 is switched by the gate flapper 78 to turn on the discharge gate. (S32). Thereby, the discharge roller 8 for the interrupted document is provided.
Are discharged to the discharge tray 81, and it is determined whether or not the discharge has been completed according to the number of documents counted by the discharge sensor 79 (S3).
3). Here, if the completion of the discharge is not determined, the copying operation is continued until the completion of the discharge is determined (S3).
4).

When it is determined that the ejection is completed, the ejection gate is turned off and the interruption copy is stopped (S3).
5). Subsequently, while the second document circulation device stops, R
The original data of the first documents Da ... stored in the AM 206 is restored (S36), and the copying operation of the first documents Da ... is automatically restarted (S37). The processing procedure after the restart of the copying operation is the same as in the first embodiment.

As described above, in the copying machine of the present embodiment, when the predetermined number of copies of the second originals Db are copied in the interrupt mode, the gate flapper 78 provided in the return conveying section 48,
The second originals Db are discharged to the discharge tray 81 by the interrupting original discharge rollers 82. Further, by counting the number of discharges of the second documents Db by the discharge sensor 79, the completion of discharge of the second documents Db is detected, and the copying operation of the first documents Da can be automatically restarted.

Therefore, the second document Db is automatically discharged, so that not only the operator does not need to remove the second document Db after completion of the interrupt copying, but also the completion of discharge is detected. The copying operation of the first documents Da is also automatically started, so that the operator does not need to instruct the start of the normal copying operation. As a result, in addition to the effects of the first embodiment, it is possible to provide a copying machine with higher working efficiency and less time loss.

Embodiment 3 Next, still another embodiment of the present invention will be described with reference to FIGS. 9 and 10. For convenience of explanation, members having the same functions as those shown in the drawings of the above-described embodiment are denoted by the same reference numerals, and the description thereof will be omitted. As shown in FIG. 9, the copying machine of this embodiment has an RDH2
The third embodiment has the same configuration as that of the first embodiment except that a third original circulation device including a third detection actuator 50c as a third original circulation detection unit and a third original circulation detection sensor 55c is provided. When the interrupt signal is input, the third detection actuator 50c is located at the bottom of the first document Da that has been stopped halfway through, thereby detecting the copy restart position of the first document Da after releasing the interrupt mode. I can do it. When the originals Da... Db... Are fed, the third detection actuator 50c rises and reaches the uppermost position.
A detection signal, which is detected by the document cycle detection sensor 55c and indicates that the document has been cycled, is transmitted from the third document cycle detection sensor 55c. By using this detection signal, the number of copies and the like can be controlled. It can be performed. The third detection actuator 50c rotates 180 degrees via the outside of the original hopper 50 after all the originals have been fed from the start of the interrupt copying, and returns to the lowermost position of the original hopper 50.

The processing procedure at the time of interrupt copying in the above configuration will be described with reference to the flowchart of FIG.
Until an interrupt signal is input by pressing the interrupt key 211f, the procedure is the same as that in the first and second embodiments, and a description thereof will be omitted.

When an interrupt signal is input by pressing the interrupt key 211f, the feeding of RDH2 is stopped (S38), and the copying operation is continued until it is determined in S39 that the collection of the original in the transport path of RDH2 is completed. The process is continued (S40). When the document collection is completed, the copying operation is temporarily stopped (S41), and each setting data of the first documents Da.
The information is stored in the OM 206 (S42), the display device 213 is cleared to a default state, and the second and third document circulation devices operate (S43). That is, the second detection actuator 50b is positioned at the uppermost position of the first document Da.
The detection actuator 50c moves to the lowermost position of the first documents Da.

In this state, the second original Db for interrupt copying is turned upside down by the operator and the second detection actuator 50b is turned over with the surface on which the image is formed facing downward.
Set on the top, and by the RDH select key 211c,
For example, a single-sided copy mode from a single-sided original is selected, and the number of interrupted copies is set by the ten keys 211a (S44). Then, the first original Da and the second original D
are determined to be the same size (S45). If not, an error message is displayed on the display unit 213 (S46), and S44 is executed again. On the other hand, if the first document Da... And the second document Db... Are the same size, then it is determined whether or not an interrupt copy start signal has been input (S47), and the input of the interrupt copy start signal is determined. Until the copying is performed, the copying machine is in a standby state.

On the other hand, when it is determined that a copy start signal has been input by pressing the print switch 211e, the interrupt copying operation is continued until it is determined in S49 that the detection signal from the second document cycle detection sensor 55b has been input. (S48). When the second original scanning sensor 55b is turned on and a detection signal is input, the first originals Da are positioned above the second originals Db in this state. That is, the skip operation of the first originals Da is performed until it is determined in S51 that the detection signal from the third original cycle detection sensor 55c is input (S51).
50). In S51, the third document cycle detection sensor 55c
When the input of the detection signal is determined, it is determined whether the set number of interrupts in S44 matches the actual number of copies (S52), and S50 to S52 until the number of copies matches the set number of interrupts. Is repeated.

On the other hand, when it is determined that the set number of copies matches the number of copies, the interrupt copying operation is stopped (S53).
Next, it is determined whether or not an interrupt release signal has been input by pressing the interrupt key 211f (S54), and the processes of S44 to S54 are repeated until the interrupt release signal input is determined. On the other hand, when the input of the interrupt release signal is determined, the second and third document circulation devices are stopped, and the original data on the first document Da stored in the ROM 206 is restored (S55). In 213, predetermined data is displayed.

At this time, the second originals Db...
a ... located above and removed by the operator. The first documents Da are in the state before the start of the interrupt copying, that is, the documents copied immediately before the start of the interrupt copying are located at the bottom of the document hopper 50. And S56
The copying machine is in a standby state until the print switch 211e is pressed and the input of the copy start signal is determined in the above. When the copy start signal is input, the copy machine is sequentially conveyed from the uppermost position of the document hopper 50, In accordance with the detection signal from the first document cycle detection sensor 55a, the copying operation is performed until the set number of copies of the first document Da...

As described above, in the copying machine of this embodiment, R
Since the DH2 is provided with the third detection actuator 50c and the third document cycle detection sensor 55c, even if the first documents Da are in the process of being processed when the interrupt copy is instructed, the interrupt is terminated. Later, the first manuscript Da ...
Can be detected. Therefore, even if the first originals Da are in the process of being processed,
Regardless of the number of remaining first documents Da..., The time until interrupt copying of the second documents Db. As a result, it is possible to minimize the loss of time required to perform the interrupt copying, and it is also possible to minimize the reduction in work efficiency.

In this embodiment, an example has been described in which the operator removes the second documents Db... After the end of the interrupt copying. However, the same discharge means for the interrupt document as in the second embodiment is used. Is provided, it is possible to discharge the second originals Db at the end of the interrupted copying, and to automatically resume copying of the first originals Da at the completion of the discharge, thereby providing a copying machine with further improved operability. Is also possible.

[0072]

As described above, in the copying machine according to the first aspect of the present invention, the circulation original transport means is provided with the second original cycle detection means for detecting the second original cycle for interrupt copying. And the number of copies in the middle of multiple copies of the first document
During copying up, when <br/> the interrupt copying of the second document is designated, specifications takes a copy of the portion number th first document in the middle
The last sheet is detected by the first original
After in was terminated, the interrupt copying <br/> second document placed stacked on the first document at the second document round detection means
Perform until detection is completed , and interrupt
The first original cycle detection unit detects the original
Copy the first original that is continuous with the second until you know
This is a configuration in which a control means for controlling the circulation of the document in the circulating document transport means is provided.

Therefore, if the interruption copy of the second document is designated during the copying of the first document, the first document in progress is terminated according to the detection signal from the first document round detection means. Thereafter, it is possible to carry out the interruption copying of the second document by using the circulating document conveying means having a high working efficiency, so that the original capability of the apparatus can be fully utilized.

According to a second aspect of the present invention, there is provided a copying machine according to the first aspect, wherein the circulating original transporting means includes a discharging means for discharging the second original after the interruption copy is completed. When, with a stacking means for stacking the second document that is discharged is provided, the first original round detection hand
The step and the second document round detection means include an actuator.
The control unit further discharges the second document by the discharge unit after the interruption copy of the second document is completed, and when the discharge of the second document is completed , the control unit outputs the first document. This is a configuration for controlling so as to restart copying.

Therefore, there is no need for the operator to remove the second document after the completion of the interrupt copying or to instruct the restart of the copying of the first document, and the process until the copying of the first document is restarted is automated. Therefore, there is an effect that a decrease in work efficiency can be prevented without requiring extra time.

In the copying machine according to the third aspect of the present invention, as described above, the circulation-type original feeding means includes a second original one-circle detecting means for detecting one cycle of the second original to be subjected to interrupt copying, with a third original round detection means for detecting the in-process copy restart position of the first document of the way when an interrupt copying the specified second document is provided, the interruption copying of the second document
When specified, the first original in the process of being processed
The interruption copy of the second document stacked and placed on the document is terminated by being detected by the second document cycle detecting means.
Until it completes , and return to the mounting state at the time of the interrupt.
Until the third original round detection means detects the second original.
Circulation type document conveyance without copying the first document successive
This is a configuration in which control means for controlling so as to circulate in the means is provided.

Therefore, when interrupt copying is designated, the copy restart position of the first original in progress is detected by the third original round detection means, so that, for example, a large number of remaining originals for the in-process original are detected. Even in such a case, there is no need to wait for the start of interrupt copying until the in-process portion is completed, so that the effect that the working efficiency can be further improved can be achieved.

[Brief description of the drawings]

FIG. 1 is a flowchart showing a control procedure when an interrupt copying is performed in a copying machine according to an embodiment of the present invention.

FIG. 2 is a schematic diagram showing a schematic configuration of the copying machine.

FIG. 3 is a schematic diagram showing a schematic configuration of a circulating document feeder provided in the copying machine.

FIG. 4 is a block diagram showing a control system in the copying machine.

FIG. 5 is a plan view showing an operation panel of the copying machine.

FIG. 6 is a flowchart showing a control procedure when interrupt copying is performed during a normal copying operation in the copying machine.

FIG. 7 is a schematic diagram showing a schematic configuration of a circulating document feeder provided in a copying machine according to another embodiment of the present invention.

FIG. 8 is a flowchart showing a control procedure when interrupt copying is performed using the circulating document feeder shown in FIG. 7;

FIG. 9 is a schematic diagram showing a schematic configuration of a recirculating document feeder provided in a copying machine according to still another embodiment of the present invention.

FIG. 10 is a flowchart showing a control procedure when interrupt copying is performed using the circulating document feeder shown in FIG. 9;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Copier main body 2 Circulating original conveying device (circulating original conveying unit) 50a First detecting actuator (first original round detecting unit) 50b Second detecting actuator (second original round detecting unit) 50c Third detecting Actuator (third document cycle detection unit) 55a First document cycle detection sensor (first document cycle detection unit) 55b Second document cycle detection sensor (second document cycle detection unit) 55c Third document cycle detection sensor (third document) Circuit detecting means) 75 transport path (discharge means) 76 transport roller (discharge means) 78 gate flapper (discharge means) 79 discharge sensor (discharge means) 81 discharge tray (stacking means) 82 discharge roller (discharge means) for interrupted document 204 Microcomputer (control means) Da first document Db second document

Claims (3)

(57) [Claims] A recirculating document having a first document recirculation detecting means for detecting that the first document has recirculated in a recirculating document conveying means while circulating a plurality of documents sequentially while passing through an optical scanning position. In a copying machine provided with a transporting means, the circulation type document transporting means is provided with a second document full-circle detecting means for detecting one cycle of the second document to be subjected to interrupt copying, and the number of intermediate copies in a plurality of copies of the first document is provided. until in double <br/> copy of, when the second document interrupt copying is designated
It is, work-in-process first original copy of the portion number of eyes of the first document in the middle of
After the end to the last sheet by detecting by the document round detection means, the interruption copy of the second document stacked and placed on the first document is detected by the second document round detection means.
Until the process is completed , and
Detected by the first original round detection means to return to the placed state
Do not copy the first original that is continuous with the second
A copying machine provided with control means for controlling circulation in the recirculating document transport means . 2. The recirculating document transport means includes a discharge means for discharging a second document after the end of interrupt copying , and a collecting means for collecting the discharged second document . Document cycle detection means and second document cycle detection means
The step is configured to include an actuator, and the control means
Further, after the interruption copy of the second document is completed, the discharge means discharges the second document, and when the discharge of the second document is completed, control is performed so that copying of the first document is resumed .
Copying machine according to claim 1, wherein Rukoto. 3. A plurality of originals is circulated while sequentially passing light scanning position Rutotomoni, circulating with a first original round detection means first document is detected that one round through the circulation type document feeder in the copying machine having a document conveying means, the said circulation type document feeder, first an interrupt copying 2
A second document cycle detecting means for detecting one cycle of the document, and a third document cycle detecting means for detecting a copy resuming position of the first document in process when interrupt copying of the second document is designated; Interrupt copy of the second manuscript is specified
Occasionally, a stack is placed on top of the first
The interruption copy of the second document placed on top of the second document
The process is continued until the detection is completed by the one-round detection means , and the third original is returned to the original state at the time of interruption.
Until it is detected by the round detection means, the first
A copying machine, further comprising control means for controlling the document to be circulated in the circulating document transport means without copying the document.