JPH10161363A - Booking type original carrying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a booking type original carrying device capable of efficiently transferring an original from a subsetting plate to a main setting plate, when the main setting plate and the subsetting plate are provided. SOLUTION: A paper subfeeding part is provided with a pair of transfer rollers 91 made of sponge, etc. A transfer path 92 is formed between a main paper feeding part and the paper subfeeding part and a pair of second paper ejecting rollers 54 made of the sponge, etc., are arranged in the transfer path 92. After the copying processing of the originals set in the main feeding part is completed, a pair of the transfer rollers 91 and a pair of the second ejecting rollers 54 are rotationally driven. Consequently, the originals reserved/set in the subfeeding part are transferred to the main feeding part with the transfer path 92 altogether. All pairs of the rollers 91 and 54 are made of the sponge, etc., so that the thickness of the original can be absorbed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to an image forming apparatus such as a copying machine, and relates to an apparatus for conveying a document to an image forming position for performing an image forming process.

[0002]

2. Description of the Related Art In a conventional document feeder used in a copying machine or the like, the next document cannot be set in the document feeder until the processing for the previous document is completed. Therefore, a user who wants to copy the next document often waits in front of the copying machine until the process for the previous document is completed, which is inefficient.

Therefore, the next original can be set even while the processing for the previous original is being performed, and when the processing for the previous original is completed, the next original set is automatically processed. A so-called reservation type document feeder has been proposed. Such a reservation type document feeder is disclosed, for example, in Japanese Patent Publication No. Hei 7-90991.

The apparatus disclosed in this publication has a main paper feeder and a sub paper feeder, and can set a document in each paper feeder. Further, it has a paper discharge unit so that the processed document can be discharged. When a document is set in the main paper feed unit and the sub paper feed unit, the documents set in the main paper feed unit are separated and fed one by one to a copy position, and a copy process is performed at the copy position. . The document after the copy processing is discharged to a paper discharge unit. When all the documents set in the main paper feed unit are discharged to the paper output unit, the documents set in the sub paper feed unit are transferred one by one to the main paper feed unit, and the transfer of all the documents is completed. Then, as described above, the originals are separated and fed one by one to the copy position, and the copy processing is performed. The document after the copy processing is discharged to the paper discharge unit as described above.

[0005]

However, in the apparatus according to the prior art, the originals are transferred one by one when the originals are transferred from the sub-sheet feeding section to the main sheet-feeding section. There is a problem that the time from the start of the transfer of the set original to the end of the copying is long. Therefore, the use efficiency of the copying machine has been reduced. This is particularly noticeable when the number of documents is large.

Accordingly, an object of the present invention is to solve the above-mentioned technical problem, and when a main set plate and a sub-set plate for setting a document are provided, the original is transferred from the sub-set plate to the main set plate. It is an object of the present invention to provide a reservation type document feeder that can transfer data efficiently.

[0007]

According to a first aspect of the present invention, there is provided an image forming apparatus comprising: a main set plate for setting an original; a sub set plate for setting an original; and a sub set plate. Transfer means provided in association with the main set board so as to collectively transfer the originals set on the sub set board at a predetermined timing.

According to this invention, for example, at the timing when the document can be transferred to the main set plate, the documents set on the sub-set plate are transferred to the main set plate at a time, so The time required for document transfer can be reduced as compared with the case where a document is transferred. According to a second aspect of the present invention, there is provided the reservation type original conveying apparatus according to the first aspect, wherein the transfer means includes a roller pair made of a material which is elastically deformable according to the number of originals.

According to this invention, since the roller pair made of an elastically deformable material is used as the means for transferring the document, the thickness of the document can be absorbed. Therefore, any number of originals can be transferred as long as the number is equal to or less than the predetermined upper limit. In particular, if pressure is applied to the roller pair as in the third aspect of the invention, a sufficient conveying force can be applied to the originals, so that all the originals can be reliably transferred at once.

An apparatus according to any one of the first to third aspects of the present invention is, for example, a document for guiding a document supplied from a main set plate to a predetermined processing position to the main set plate and resetting the same. It may further include a circulation means.

[0011]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a sectional view showing a configuration of a copying machine to which an embodiment of the present invention is applied. This copying machine has a copying machine main body 1 and a reservation type document supply device 70 mounted on the upper surface of the copying machine main body 1. The reservation type document supply device 70 includes a main paper feed unit 10 and a sub paper feed unit 80.

The main paper feed unit 10 is a so-called recirculating automatic document feeder (RDH: Recycle Document Handler). That is, the original is automatically supplied onto the contact glass 2 provided on the upper surface of the copying machine main body 1 and the original is again placed on the contact glass 2 by returning the copied original to the originally set position. It is made available.

The sub-sheet feeding unit 80 is for setting a document to be copied next to the document set in the main sheet feeding unit 10 by reservation. The main paper feed unit 10 is provided with a main set unit 20 for setting an original, a main supply unit 30 for supplying the original set in the main set unit 20 to the copier main body 1, and the main feed unit 30. A transport belt 40 for moving a document in the supply direction or the opposite supply direction, a document discharge unit 50 for discharging the document from the copying machine main body 1, and a document resetting unit for guiding the discharged document to a supply position. 60 is provided.

The main set section 20 includes a main set plate 21. The main set plate 21 has a width direction V
And a width regulating plate 22 for positioning the original, and a feed belt 23 for conveying the original set at the main initial position to the supply position. The main initial position is a position at which the user sets a document on the main set plate 21, and the supply position is a position at which supply of the document is started.

When a document is set at the main initial position, a preset switch (hereinafter referred to as "preset SW") 24 provided at the main initial position is turned on, and a forward feed belt 23 is set.
Is driven to rotate. Along with this, the original is conveyed, and a set switch (hereinafter referred to as “set SW”) provided at the supply position is provided.
That. When 25) is turned on, the rotation of the advance belt 23 is stopped after a predetermined time has elapsed. As a result, the document is set at the supply position.

The main supply unit 30 includes a separation mechanism 32 inside the paper feed cover 31. The separation mechanism 32 has a separation belt 32a and a separation roller 32b.
The lowermost document is separated from the document set at the supply position by only one sheet by a and the separation roller 32 b, and the separated document is sent to the paper feed path 33. The document sent to the paper feed path 33 is supplied to the contact glass 2 of the copying machine main body 1 by the transport belt 40 after the supply timing is adjusted by a pair of rollers including a registration / reversing roller 34 and a registration roller 35. Be placed. At this time, if the supplied original is a single-sided original, the copying operation by the copying machine body 1 is executed as it is. On the other hand, if the supplied original is a two-sided original, the original is turned over before the copying machine 1 executes a copying operation.

That is, the double-sided original placed on the contact glass 2 is transported by the transport belt 40 to the reverse path 36.
It is pulled back to. The pulled back document is transported by the transport belt 4
0, the sheet passes through the reversing path 36 by the rotation of a roller pair composed of the registration / reversing roller 34 and the reversing roller 37 and a roller pair composed of the registration / reversing roller 34 and the registration roller 35, After leaving at 33,
It is arranged again on the contact glass 2 by the conveyor belt 40. In this state, the copying operation is performed. That is, the back side is copied. Thereafter, the sheet is turned over again, placed on the contract glass 2 three times, and then subjected to a copying operation to copy the front side.

The copied document is sent to a document discharge section 50 by a conveyor belt 40. The document discharge unit 50 includes a first discharge roller pair 53 and a second discharge roller pair provided near an upstream end and a downstream end of a discharge path 52 formed in the discharge cover 51. 54. In the middle of the paper discharge path 52 and near the downstream side of the first paper discharge roller pair 53, a branch port 55 is formed which is connected to the paper discharge unit 95 of the sub paper feed unit 80. In connection with the branch port 55, a branch claw 56 is provided. The branching claw 56 is provided with a discharge position at which the discharge path 52 is closed and the branch opening 55 is opened as shown by a solid line, and a circulation position at which the branch opening 55 is closed and the discharge path 52 is opened as shown by a broken line. And is displaceable.

When the branching pawl 56 is at the circulating position, the original sent by the transport belt 40 is drawn into the paper discharge path 52 by the first paper discharge roller pair 53, and furthermore,
The sheet is discharged onto the main set plate 21 by the second sheet discharging roller pair 54. On the other hand, when the branch claw 56 is at the paper discharge position, the first
The sheet is guided to the branch port 55 by the sheet discharge roller pair 53 and is sent out to the sheet discharge section 95 of the sub sheet feed section 80.

The document resetting section 60 aligns the leading edge of a document discharged on the main set plate 21 (hereinafter referred to as a "discharged document") and resets the document at a supply position. Document divider 61 for aligning the leading edge of the document
And a transfer plate 62 for pushing the rear end of the discharged document and sending the document along the document transfer direction H. The document partitioning section 61 is provided on the upper part of the sheet feeding cover 31 so as to be movable in the document transfer direction H, and includes a partition bar 61a that protrudes downward or is housed therein. When the copying operation is started, the document partitioning section 61 is moved toward the upstream side in the document transporting direction H to a position corresponding to the size of the discharged document, as indicated by the two-dot chain line, and thereafter the partitioning bar 61a Is projected downward. As a result, the leading edge of the discharged document is aligned with the partition bar 61a.

The transfer plate 62 is provided at the bottom of the paper discharge cover 51 so as to be movable in the document transfer direction H. When the copying operation is started, the transfer plate 62 is moved to near the rear end of the document set at the supply position,
After the first document is discharged, it is returned to the discharge cover 51. That is, when the first document is discharged,
This is because there is a possibility that the leading edge of the original may hit the rear end of the original before copying.

The transfer plate 62 is moved in the document transfer direction H after all the documents set at the supply position are discharged onto the main set plate 21. Accordingly, the discharged original is transported in the original transport direction H. When the document reaches the preset SW 24 and the preset SW 24 is turned on, the forward feed belt 23 is driven and the document is pulled in. Thereafter, the drive of the advance belt 23 is stopped at a timing when a predetermined time has elapsed after the set SW 25 is turned on. As a result, the document is reset at the supply position.

The auxiliary paper feed unit 80 is connected to the main paper feed unit 10 on the side of the original discharge unit 50 of the main paper feed unit 10, and is set in a sub set unit 81 and a sub set unit 81 for setting an original. It has a sub-supply unit 90 for collectively sending out the copied originals, and a paper discharging unit 95 for discharging the copied originals. The sub-set unit 81 includes a sub-set plate 82. The sub-setting plate 82 is provided with a width regulating plate 83 and a forward feed belt 86 for transporting the document set at the sub-initial position to the transfer position, similarly to the main sheet feeding unit 10. The sub initial position is a position for the user to set a document on the sub-setting plate 82, and the transfer position is a position where the transfer of the document is started. The sub-initial position and the transfer position each include a preset SW8 that outputs a signal serving as a trigger when controlling the rotation drive of the forward feed belt 86.
4 and a set SW85.

The sub-supply section 90 has a transfer roller pair 91. The transfer roller pair 91 is made of an elastically deformable material such as sponge, and serves to collectively send one or a plurality of documents set at the transfer position to the transfer path 92. The transfer path 92 extends almost obliquely upward to the main paper feed unit 10, and is located above the main paper feed unit 10.
2 That is, a part of the paper discharge path 52 is used as the transfer path 92.

The transfer path 92 has a height that allows the maximum number of originals that can be set in the sub-setting unit 81 to pass therethrough. The height is the same as the path 92.
In connection with the fact that part of the paper discharge path 52 is used as the transfer path 92, the second paper discharge roller pair 54 provided at the downstream end of the paper discharge path 52 is Like the roller pair 91, it is made of an elastically deformable material such as a sponge.

The paper discharge unit 95 is provided below the sub-setting plate 82 and has a paper discharge tray 98 for storing a document guided from the main paper supply unit 20 through the branch port 55. I have. Documents to be stored in the discharge tray 98 are discharged to the discharge tray 98 through different paths according to the size of the document. More specifically, the paper discharge unit 95 is provided with a guide plate 96 that can move in the vertical direction in relation to the branch port 55. The guide plate 96 is located at a lower position as indicated by a solid line when the size of the document to be accommodated in the discharge tray 98 is smaller than a predetermined size (for example, A4), and when the size of the document is larger than the predetermined size. Is located at an upper position as shown by a two-dot chain line.

When the size of the original is equal to or smaller than the predetermined size, the original after the copy processing is guided to the original discharge unit 50 by the transport belt 40 as it is, and then guided to the paper discharge unit 95 through the branch port 55. . At this time, since the guide plate 96 is located at the lower position, the original is
a. After that, the original is transferred to the discharge roller pair 97.
The sheet is sent to the downstream side of the sheet discharge path 97a by b and 97c, and is further inverted by the sheet discharge roller pair 97d, and then discharged to the sheet discharge tray 98.

If the size of the original is larger than the predetermined size, the original after the copy processing is returned to the inverting path 36 of the main paper feeding unit 10 and is inverted, and then the transport belt 40
Accordingly, the sheet is guided to the document discharge section 50, and further to the sheet discharge section 95 via the branch port 55. At this time, the guide plate 96
Is located at the upper position, the document is directly discharged to the discharge tray 98.

In any case, the original is once inverted so that when the original is discharged to the paper discharge tray 98, the original of the young page is placed on the upper side. As described above, a document having a size larger than the predetermined size is inverted by the inversion path 36 having a shorter length than the paper ejection path 97a, and then directly discharged to the paper ejection tray 98 without passing through the paper ejection path 97a. Is done. Therefore, the copied document can be quickly discharged to the discharge tray 98, so that the copy speed can be prevented from being reduced.

FIG. 2 is a diagram for explaining document transfer. When the transfer of the document P set at the transfer position is started, the document P is conveyed toward the transfer roller pair 91 by the rotation of the forward feed belt 86 (FIG. 2A).
When the document P reaches the transfer roller pair 91, the transfer roller pair 9
Reference numeral 1 is made of a sponge or the like, and is deformed according to the thickness of the conveyed document P (FIG. 2B). In this state, the document P is sandwiched between the transfer roller pair 91 and is sent out to the transfer path 92 by the rotation of the transfer roller pair 91 (FIG. 2C). When the document P reaches the second paper discharge roller pair 54, the second paper discharge roller pair 54 is formed of a sponge or the like, like the transfer roller pair 91, so that the second paper discharge roller pair 54 varies according to the thickness of the conveyed document P. (FIG. 2D). In this state, the document P is sandwiched between the pair of second discharge rollers 54 and guided to the main set plate 21 by the rotation of the pair of second discharge rollers 54 (FIG. 2E). Thus, the transfer of the document P is achieved while absorbing the thickness of the document P.

In the above description, since a part of the paper discharge path 52 is used as the transfer path 92, the second paper discharge roller pair 54 is made of a material such as sponge. However, if the paper discharge path 52 and the transfer path 92 are formed independently of each other, and a roller pair composed of sponge or the like is arranged near the final end of the transfer path 92, the second paper discharge roller Since the pair 54 has a function of discharging only one original after copying, the second discharge roller pair 54 does not need to be made of a sponge or other elastically deformable material.

The transfer roller pair 91 and the second paper discharge roller pair 54 are entirely made of sponge and the like. Instead of fixing these roller pairs 91 and 54, as shown in FIG. 91 and the second discharge roller pair 54
Of the transfer roller pair 91
And upper rollers 91a, 54 of the second discharge roller pair 54.
a may be displaceable in the vertical direction.
More specifically, the other end of the arm 93 fixed at the fixed end 93a is attached to the roller shaft of the upper rollers 91a, 54a, and the upper rollers 91a, 54a start from the fixed end 93a.
a is vertically displaceable. According to this configuration, the transfer roller pair 91 and the second paper discharge roller pair 54 are displaced upward in accordance with the thickness of the conveyed document, so that the document can be transferred while absorbing the thickness of the document. it can.

In this case, in order to apply a sufficient conveying force to the original, a downward pressure is applied to each of the upper rollers 91a and 54a of the transfer roller pair 91 and the second paper discharge roller pair 54. May be made. According to this configuration, a sufficient conveyance force is applied to the document,
Documents can be transferred all at once without omission. FIG. 4 is a block diagram illustrating an electrical configuration related to document transfer. The main paper feed block 10 and the sub paper feed unit 80 have a main control unit 200 and a sub control unit 21 functioning as control centers, respectively.
0 is provided. Main control unit 200 and sub control unit 2
Reference numeral 10 is, for example, a microcomputer. The main control unit 200 and the sub-control unit 210 are accessible to each other.

The main control section 200 is made accessible to a main body control section 220 which is a control center of the copier main body 1. The main body control unit 220 is constituted by, for example, a microcomputer, and is provided with an output of a print key 221 for instructing a start of copying as an input signal. The main control unit 200 controls the main feed driving unit 250 which is a driving source of the main supply unit 30 based on information on whether the print key 221 has been pressed.

The output of the set SW 25 is provided to the main control unit 200 as an input signal. The main control unit 200 controls the second discharge driving unit 25 that is the driving source of the second discharge roller pair 54 based on the output of the set SW 25.
1, and a partitioning drive unit 252 which is a drive source of the document partitioning unit 61 is controlled. The main control unit 200 includes the sub control unit 2
10 can be accessed to take in the ON / OFF information of the set SW 85 given as an input to the sub-control unit 210. Further, the main control unit 200
Is based on the captured ON / OFF information of the set SW 85, etc.
53 and a transfer drive unit 2 that is a drive source of the transfer plate 62
54 is controlled.

The sub-control unit 210 controls the sub-transfer drive unit 255, which is the driving source of the transfer roller pair 91, and the discharge roller pairs 97b, 97c, 97 based on the control from the main control unit 200.
The driving unit 256 controls the sub-discharge driving unit 256 as the driving source of d and the guide plate driving unit 257 as the driving source of the guide plate 96. FIG. 5 is a flowchart for explaining an operation related to document transfer. When a document is set on the main set plate 21 and the print key 221 is pressed, the main controller 200 starts supplying the document. At this time, the branch pawl 56 is set to the circulation position, and the copied document is discharged onto the main set plate 21.

When the original set on the main set plate 21 is being supplied, the main control unit 200 monitors whether or not the original is set on the sub-set plate 82 (step S1). . Specifically, it monitors whether the set SW 85 on the sub-set plate 82 has been turned on. If the original is not set on the sub-setting plate 82, the supply of the original is continued (step S13). On the other hand, when a document is reserved and set on the sub-setting plate 82 and the set SW 85 is turned on, the main control unit 200 determines whether or not the document supply from the main setting unit 20 is already in the last cycle ( Step S2). As a result, if it is determined that the last cycle has not yet been entered, the end of the document supply cycle immediately before the last cycle is monitored (step S3). The document supply cycle ends after the first processing time t ₁ since the set SW 25 on the main set plate 21 is turned off.
Is determined based on the lapse of time. First processing time t ₁
Is the time required for the rear end of the document to pass through the second discharge roller pair 54 after leaving the set SW 25.

When the cycle immediately before the final cycle is completed, the main control unit 200 switches the branching pawl 56 to the paper discharge position (step S4). Further, the sub-control unit 210 is accessed, and the guide plate 96 is positioned at the upper position or the lower position according to the size of the document set on the main set plate 21. Further, when the guide plate 96 is located at the lower position, the pair of paper discharge rollers 97b, 97c, 97d are driven to rotate. As a result, the original on the main set plate 21 is subjected to the final copy processing, then guided to the paper discharge unit 95 of the sub paper feed unit 80, and discharged to the paper discharge tray 98.

Thereafter, the main controller 200 determines whether or not the last cycle has been completed (step S5). That is, the document set in the main set unit 20 is guided to the paper discharge unit 95 of the sub-sheet supply unit 80, and it is checked whether the preparation for transferring the document to the main set plate 21 is completed. As a result, when it is determined that the final cycle has been completed, the main control unit 200
The sub-control unit 210 is instructed to transfer the originals on the sub-set plate 84 to the main set plate 21 at a time (step S6). Also,
The rotation drive of the second discharge roller pair 54 is started, and
The document partitioning section 61 is moved by a length corresponding to the document size, and the partition bar 61a is projected downward.

The sub-control unit 210 drives the transfer roller pair 91 to rotate based on an instruction from the main control unit 200. As a result, the originals set on the sub-set plate 82 are sent out to the transfer path 92 in a lump. The document sent out to the transfer path 92 is further guided onto the main set plate 21 by the rotation of the second sheet discharging roller pair 54. Main set plate 21
The leading end of the document guided upward hits the partition bar 61a and is aligned.

After instructing the transfer of the original, the main control unit 200 determines the end of the original transfer (step S7). Specifically, set SW85 on sub set plate 82 checks whether or not the second treatment time t ₂ has elapsed since turned off.
In the second processing time t ₂ , the rear end of the document to be transferred is set SW
85 is a time required to pass through the second sheet discharging roller pair 54 after leaving the sheet discharging roller 85.

If it is determined in step S7 that the transfer of the document has been completed, the main control unit 200 moves the transfer plate 62 and rotates the advance belt 23 to set the transferred document at the supply position. Let it. afterwards,
The supply of the document is started (step S8). When the transferred document is discharged to the discharge tray 98 of the sub-sheet feeding unit 80, if the document previously discharged to the discharge tray 98 has not been removed yet, the document is transferred to this document. There is a possibility that it will be mixed with the original. Therefore, the main control unit 2
In step 00, the branch pawl 56 is set to the circulation position, and the transferred original is discharged to the main set plate 21.

If it is determined in step S3 that the final cycle has already been entered, the originals after the copying process among the originals set on the main set plate 21 are already discharged onto the main set plate 21. ing. In such a case, if the document transfer is performed after the last cycle of the document is completed, the documents will be mixed. Then, after waiting for the end of the final cycle (step S9), the main control unit 200 switches the branching pawl 56 to the discharge position (step S10), and starts the idle feeding of the original on the main set plate 21. (Step S11). Thereafter, it is determined whether or not the idle feeding has been completed (step S12). When it is determined that the idle feeding has been completed, the main control unit 200 proceeds to step S6 and starts batch transfer of the original.

As described above, according to the reservation type document supply device 70 of this embodiment, if the document is reserved and set on the sub-setting plate 82, the document is automatically copied thereafter. Therefore, there is no need to wait in front of the copying machine until the copying process of the previous document is completed, and the user can save time and effort. In addition, since the originals set on the sub-set plate 82 are transferred to the main set plate 21 at a time, the time can be reduced as compared with the case where the originals set on the reservation are sent one by one. Therefore, the use efficiency of the copying machine can be improved.

Further, since the transfer roller pair 91 and the second paper discharge roller pair 54 for transferring the original on the sub-setting plate 86 are formed of sponge or the like, the thickness of the original can be sufficiently absorbed. As a result, any number of documents can be set on the sub-setting plate 82 as long as the number is equal to or less than the predetermined upper limit number. The description of one embodiment of the present invention is as described above, but the present invention is not limited to the above-described embodiment. For example, in the above embodiment, whether or not the supply of the original set on the main set plate 21 is completed is time-controlled. However, for example, a sensor for detecting the presence or absence of a document is provided near the branch port 55, and when the sensor does not detect the document for a predetermined time after the start of document supply, it is determined that the discharge of the final document has been completed. May be determined to be completed.

Similarly, in the above embodiment, the sub-sheet feeding unit 80
Is time-controlled as to whether or not all of the originals transferred from the printer have reached the main set plate 21. However, a sensor for detecting the presence or absence of a document is installed near the second discharge roller pair 54 near the final end of the transfer path 92, and when this sensor does not detect a document for a predetermined time after the start of document transfer, ,
It may be determined that the transfer of the document has been completed.

Further, in the above-described embodiment, after the trailing edge of the final document leaves the set SW 25,
5, it is determined that the supply of the original set on the main set plate 21 has been completed. However, in response to the trailing edge of the final document leaving the set SW 25, it may be determined that the supply of the document set on the main set plate 21 has been completed. In response to the end, it may be determined that the supply of the original set on the main set plate 21 has been completed. In short, it is sufficient if there is no original on the main set plate 21.

Further, in the above-described embodiment, the main sheet feeding section 10
Is described as the case where RDH is applied,
The main paper feed unit 10 may be, for example, an automatic document feeder that automatically feeds a document and then discharges the document to a dedicated discharge tray. In addition, various design changes can be made within the scope described in the claims.

[0049]

As described above, according to the present invention, the originals set on the sub-set plate are transferred to the main set plate at a time. The time required for transfer can be reduced. Therefore, when the present invention is applied to, for example, a copying machine, the use efficiency of the copying machine can be improved.

According to the second aspect of the present invention, since a pair of rollers made of an elastically deformable material is used as a structure for transferring the original, any number of originals can be used as long as the number is equal to or less than a predetermined upper limit. Can be set on the sub set plate.
According to the third aspect of the present invention, when transferring the original from the sub-setting plate, pressure can be applied to the pair of rollers for transferring the original, so that a sufficient conveying force can be applied to the original. Therefore, the originals can be reliably transferred in a batch.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a configuration of a copying machine to which an embodiment of the present invention is applied.

FIG. 2 is a diagram for explaining document transfer.

FIG. 3 is a diagram illustrating another example of the configuration of the sub-document supply unit.

FIG. 4 is a block diagram illustrating an electrical configuration related to document transfer.

FIG. 5 is a flowchart illustrating an operation related to document transfer.

[Explanation of symbols]

 21 Main set plate 54 Second discharge roller pair 82 Sub set plate 91 Transfer roller pair 92 Transfer path 200 Main control unit 210 Sub control unit 251 Second discharge drive unit 255 Sub transfer drive unit 256 Sub discharge drive unit

Claims (3)

[Claims] 1. A main set plate for setting a document, a sub-set plate for setting a document, and a document provided in relation to the sub-set plate and set on the sub-set plate at a predetermined timing And a transfer means for transferring the image data to the main set plate at a time. 2. The reservation type original conveying apparatus according to claim 1, wherein said transfer means includes a roller pair made of a material which can be elastically deformed according to the number of originals. 3. The reservation type original conveying apparatus according to claim 2, further comprising a pressurizing means for applying pressure to a pair of rollers included in said transfer means.