JPH1115210A - Image forming device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a document feeder enabling an operator to easily discriminate a document related to trouble such as the jamming of transfer paper and jam. SOLUTION: When the document is fed by a document feeding means 34 and the trouble of the transfer paper is caused, the document having an image surface where an image transferred to either surface of the transfer paper is recorded and the document detected by the means 32 at the time nearest to the time when the trouble is caused from the time when the first document is detected by the means 34 till the time when the trouble is caused out of the documents detected by the means 32 from the time when the first document is detected by the means 32 till the time when the trouble is caused are ejected to a specified ejected document placing table 37 by a forcible ejection means 35. Then, the document ejected by the means 35 and the placing table 37 are displayed to a reset document display means 36.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus such as a copying machine or a facsimile having a document conveying device.

[0002]

2. Description of the Related Art Some conventional image forming apparatuses have a document feeder provided with two document trays to which a discharged document is discharged. For example, Japanese Patent Application Laid-Open No. 3-171
No. 162 is disclosed. JP-A-3-17
Japanese Patent No. 1162 discloses an image forming apparatus having a document feeder, in which a document placed on a document table is stopped at a predetermined position on a transparent plate when a one-sided mode is used. When the two-sided mode is used, the original placed on the original table is stopped at a predetermined position on the transparent plate, and the front and back are inverted and the original is again transparent. After being stopped at a predetermined position on the plate, it is discharged to the second document tray without turning over. FIG. 1 shows a conventional image forming apparatus.

FIG. 1 is a schematic configuration diagram of an example of a conventional image forming apparatus. In the image forming apparatus shown in FIG.
Reference numeral 1 denotes an image forming apparatus.
a document transfer device 2 and an image transfer device 4 having a contact glass 3 on the upper surface. The document conveying device 2 includes a sheet feeding unit 5 and a conveying unit 6.
And a reversing sheet discharging means 7.

The paper supply means 5 includes a paper supply motor (not shown), a document table 8, a call roller 9, and a paper supply roller 10.
And reverse rollers 11 and pull-out rollers 12 and 13
And a registration sensor 14. The call roller 9, the paper feed roller 10, the reverse roller 11, and the pull-out rollers 12, 13 are driven by the paper feed motor,
It is connected to the paper feed motor via a drive system such as a gear mechanism.

The transport means 6 includes a transport motor (not shown) for driving the transport belt 15. Reverse sheet discharging means 7
A reversing discharge motor (not shown) and a reversing drive roller 16
, Paper discharge driven roller 17, switching claw 18, paper discharge tray 1
9, a reversing guide member 20, a switching claw 21, a reversing driven roller 22, a reversing sensor 23, a paper discharge driving roller pair 24,
25 and a paper discharge tray 26.

The reversing drive roller 16, the paper discharge driven roller 17, the reversal guide member 20, the reversal driven roller 22, and the discharge drive roller pair 24, 25 are driven by the reversal discharge motor. A description will be given of a document transport process when the image transfer device 4 copies only one side of the document (hereinafter, this transport process is referred to as a one-sided copy mode). The document S is placed on the upper surface of the document table 8 by the operator with the image surface facing upward. When the operator presses a start button (not shown) of the copying machine 1a, the paper feed motor rotates forward (rotates clockwise) via an interface (not shown) and a controller, and the paper feed motor rotates forward. As a result, the calling roller 9, the sheet feeding roller 10, and the pull-out roller 12 are rotated forward (rotated clockwise on the sheet of FIG. 1), and the reverse roller 11 and the pull-out roller 13 are rotated reversely (on the sheet of FIG. 1). Rotated counterclockwise). When the call roller 9 rotates forward, the original S placed on the upper surface of the original table 8 is fed from the uppermost original S of the original bundle S,
The sheet is conveyed to a separation section composed of a sheet feed roller 10 and a reverse roller 11. The document S is separated one by one by the paper feed roller 10 rotating in the forward direction and the reverse roller 11 rotating in the reverse direction, and the document S is pulled out from the separation portion by the pull-out roller pairs 12 and 13. Pullout rollers vs. 12,
When the registration sensor 14 provided so as to be located downstream of the document transport direction with respect to the document 13 detects the leading edge of the document S in the transport direction, the paper feed motor that has been rotating forward rotates in the reverse direction (counterclockwise rotation). The reverse roller 11 and the pull-out roller 13 that have been rotating in the reverse direction rotate forward. Therefore, the next document following the document S is prevented from entering the separation section. The document S is transported to the transport unit 6 by the pull-out roller pairs 12 and 13.

Since the feed motor rotates in the forward direction at the same time as the feed motor rotates in the reverse direction, the original S
The wafer 5 is conveyed to the upper surface of the contact glass 3 and stopped at a predetermined position. The registration sensor 14 detects the original S
After detecting the trailing end of the document S in the conveyance direction, the document S is conveyed by the predetermined number of pulses by the conveyance motor and then stopped by the conveyance motor, whereby the document S is stopped at the predetermined position. The document S stopped at the predetermined position on the upper surface of the contact glass 3 is exposed by the image transfer device 3, and after the exposing operation of the document S is completed, the transport motor rotates forward and the transport belt 15 rotates the transport motor. The document S is conveyed to the reverse sheet discharging means 7.

Since the reversing discharge motor rotates forward simultaneously with the rotation of the transport motor, the original S transported by the transport means 6 to the reverse discharge means 7 is driven by the reverse drive roller 16 and the discharge driven roller. The sheet is discharged to a sheet discharge tray 19 by a pair of rollers constituted by the rollers 17. In the one-sided copying mode, the switching claw 18 is in a position opposite to the position shown in FIG. 1 (a position where the lower end of the switching claw 18 is retracted upward, the home position), and the lower end of the switching claw 18 is The document S plays a role of a guide member for guiding the document S to be conveyed to the position of the discharge tray 19. In the double-sided copying mode described below, the switching claw 18 is at the position shown in FIG.

A description will be given of the document transport process (hereinafter, this transport process is referred to as a double-sided copy mode) when the image transfer device 4 copies both sides of the document. The transport process up to the point where the document is transported from the transport unit to the reverse discharge unit is the same as the one-sided copy mode described above. Since the reverse discharge motor rotates forward at the same time as the transport motor rotates forward, the original S transported to the reverse discharge means 7 by the transport means 6 is composed of a reverse drive roller 16 and a discharge driven roller 17. 1 and the switching claw 18 at the position shown in FIG.
The surface of the document S is turned upside down with respect to the conveyance direction by the switching claw 21 at the position shown in FIG. 1 and the position shown in FIG. 1, and is conveyed again to the upper surface of the contact glass 3 by the reversing drive roller 16 and the reversing driven roller 22.

The original S which has entered the reverse sheet discharging means 7
When the reversing sensor 23 detects the leading end in the transport direction, the transport motor, which has been rotating forward, rotates in the reverse direction, and the original S transported to the upper surface of the contact glass 3 is transported to a predetermined position by the transport belt 15 and stopped. I do. The document S is exposed by the image transfer device 4, and after the exposing operation of the document S is completed, the transport motor rotates forward, and the transport belt 15 transports the document S to the reverse discharge unit 7 again.

Since the reverse motor is normally rotated at the same time as the transport motor rotates forward, the original S transported again by the transport means 6 to the reverse discharge means 7 is driven by the reverse drive roller 16 and the driven paper discharge. The rollers are conveyed by a pair of rollers composed of the rollers 17 and the switching claws 18 at the position shown in FIG. 1, and are at a position opposite to the position shown in FIG. 1 (the upper end is retracted downward). A certain switching claw 2
The sheet is ejected to a sheet ejection tray 26 by the sheet ejection drive roller pair 1 and the sheet ejection drive roller pairs 24 and 25.

[0012]

However, in the conventional image forming apparatus as described above, when an image described on the image side of a document is transferred, troubles such as a paper jam of the transfer paper and a jam are caused. When the error occurs, the operator of the image forming apparatus identifies the document related to the trouble from the content of the discharged transfer paper and a monitor provided on the image transfer apparatus, and again transmits the document to the image forming apparatus. There was a problem that the image transfer operation had to be performed.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a document feeder in which an operator can easily identify a document related to a transfer paper jam or a trouble such as a jam. .

[0014]

According to the first aspect of the present invention,
Document detecting means for detecting the document during a period from when the document is placed to when the image described on the image surface of the document is transferred to one surface of the transfer paper. And transferring the image described on the image surface of the 2n + 1-th document (n is zero or a natural number) detected by the document detecting means to one surface of the (n + 1) -th transfer paper,
+ The image written on the image surface of the second original
An image transfer unit that transfers the image to the other surface of the transfer sheet; and an image transfer unit that transfers the image described on the image surface of the i-th document (i is a natural number) by the image transfer unit. Document transport means for transporting the document so that the image detecting means detects the (i + 1) -th document by the time the image described on the image surface of the (i + 1) -th document is transferred; Is detected by the document detecting means during a period from the time when the first document is detected by the document detecting means to the time when the paper jam or the jam occurs in the transfer paper. Among the originals, an original having an image surface on which an image transferred to one surface of the transfer paper is described, and a paper jam of the transfer paper from when the first original is detected by the original detection unit. Or forcibly ejecting a document detected by the document detecting means at a time closest to the time when the paper jam or the jam occurs in the transfer paper until the time when the jam occurs. When,
Reset document display means for displaying the document discharged by the forcible discharge means and the discharge document mounting table on which the document discharged by the forcible discharge means is to be discharged. When paper is jammed or jammed on the transfer paper,
In the forcibly ejecting unit, among the originals detected by the original detecting unit between the time when the first original is detected by the original detecting unit and the time when a paper jam or a jam occurs in the transfer sheet, A paper jam or a jam has occurred in the transfer paper since the first document was detected by the document detection means and a document having an image surface on which an image transferred to one surface of the transfer paper was written. Until the time when the paper jam or the jam of the transfer paper occurs, the document detected by the document detecting means at the time closest to the time when the paper is jammed is discharged to the predetermined discharge document mounting table, and the reset document display is performed. Means for displaying the document discharged by the forcible discharge means and the discharged document mounting table which is a discharge destination of the document discharged by the forcible discharge means. It is an butterfly.

According to a second aspect of the present invention, in order to achieve the above object, there is provided a method according to the present invention, from when a document is placed to when an image described on the image side of the document is transferred to one side of a transfer sheet. A document detecting means for detecting the document in between, and an image described on the image surface of the 2n + 1-th document (n is zero or a natural number) detected by the document detecting means in one of the (n + 1) -th transfer sheets. Image transfer means for transferring the image described on the image surface of the 2n + 2nd document to the other surface of the (n + 1) th transfer sheet, and i (i is a natural number) sheets by the image transfer means From the time when the image described on the image surface of the eye original is transferred, i +
Document transport means for transporting a document so that the (i + 2) th document is detected by the document detection means by the time the image described on the image surface of the first document is transferred; When a jam or a jam occurs, the original document detected by the document detecting means is detected from the time when the first document is detected by the document detecting means to the time when the transfer paper is jammed or the jam occurs. Among them, a document having an image surface on which an image transferred to one surface of the transfer paper is described, and a paper jam or jam of the transfer paper from the time when the first document is detected by the document detection means. Until the occurrence of the paper jam or jam of the transfer paper, the original detected by the original detecting means at the time closest to the occurrence of the paper jam or forcible discharge to the output original mounting table Output means, and reset document display means for displaying the document discharged by the forcible discharge means and the discharge document mounting table to which the document discharged by the forcible discharge means is to be discharged. When the original is conveyed by the means and a paper jam or a jam of the transfer paper occurs, the forced paper ejecting means detects the paper jam or the paper jam of the transfer paper from the time when the first original is detected by the original detecting means. Of the originals detected by the original detection unit until the time when the
A paper jam or a jam has occurred in the transfer paper since the first document was detected by the document detection means and a document having an image surface on which an image transferred to one surface of the transfer paper was written. Until the time when the paper jam or the jam of the transfer paper occurs, the document detected by the document detecting means at the time closest to the time when the paper is jammed is discharged to the predetermined discharge document mounting table, and the reset document display is performed. Means for displaying the original ejected by the forcible ejecting means and the ejected original mounting table to which the original ejected by the forcible ejecting means is to be ejected.

According to a third aspect of the present invention, in order to achieve the above object, in the first or the second aspect of the present invention, the image transfer means is arranged so that an image described on an image surface is formed on one side of the transfer paper. A plate member provided on an upper portion on which the document to be transferred onto a surface can be placed, and at least two sheets of the document placed on the upper surface of the plate member in a direction in which the document is discharged by the forcible discharging means; It is characterized by being composed of a possible small-sized thin plate-shaped member.

According to a fourth aspect of the present invention, in order to achieve the above object, in the first or the third aspect of the present invention, an image written on the image surface of the second original by the image transfer means is one of When a paper jam or a jam occurs in the first transfer sheet after the image is transferred to the other surface of the first transfer sheet and before the third sheet is detected by the document detection unit. The forcible discharge means discharges the first document and the second document to the same discharge document mounting table.

According to a fifth aspect of the present invention, in order to achieve the above object, in the first or the third aspect of the present invention, the image transfer means includes a second image of an image described on an image surface of a third document. After the transfer of the second transfer sheet to one side of the transfer sheet is started and before the fourth sheet is detected by the document detecting means, the paper jam or jam of the second transfer sheet may occur. When the occurrence occurs, the third document is discharged to a second document placement table different from the first document placement table to which the second document is discharged by the forcible discharge means. Is what you do.

According to a sixth aspect of the present invention, in order to achieve the above object, in the second or third aspect of the present invention, the image transferred on the image surface of the second original by the image transfer means is one image. When a paper jam or a jam occurs in the first transfer sheet after the image is transferred to the other surface of the first transfer sheet and before the fourth document is detected by the document detection unit. The first document, the second document, and the third document are discharged to the same discharge document mounting table by the forced discharge means.

According to a seventh aspect of the present invention, in order to achieve the above object, in the second or third aspect of the present invention, the image transfer means includes a second image of an image described on an image surface of a third document. After the transfer of the second transfer sheet to one surface of the second transfer sheet is started and before the fifth document is detected by the document detection means, a paper jam or a jam of the second transfer sheet may occur. When an error occurs, the third document and the fourth document are discharged to a second discharge document mounting table different from the first discharge document mounting table as a discharge destination of the second document by the forcible discharge means. It is characterized by being performed.

[0021]

Embodiments of the present invention will be described below with reference to the drawings. 2 to 9 are diagrams illustrating an embodiment of the image forming apparatus according to the present invention, and FIG. 10 is a diagram illustrating a flow of a document conveying process performed by the image forming apparatus according to the embodiment. First, the configuration will be described.

FIG. 2 is a schematic structural view of an embodiment of the image forming apparatus according to the present invention. In the image forming apparatus shown in FIG. 2, reference numeral 31 denotes an image forming apparatus;
1 includes an original detecting unit 32, an image transferring unit 33, an original conveying unit 34, a forced discharging unit 35, and a reset original displaying unit 36. The document detection means 32 detects the document from when the document is placed to when the image described on the image surface of the document is transferred to one surface of the transfer paper, and detects the document from the registration sensor 32a. It is configured. The image transfer unit 33 transfers the image described on the image surface of the 2n + 1-th document (n is zero or a natural number) detected by the registration sensor 32a to one surface of the (n + 1) -th transfer paper, and The image described on the image surface of the eye original is transferred to the other surface of the (n + 1) th transfer sheet.

The image transfer means 33 starts the transfer of the image described on the image surface of the i-th document (i is a natural number) by the image transfer means 33.
By the time the image written on the image surface of the + 1st document is transferred, the i + 1st document is
The document is conveyed so as to be detected by 2a. The forcible discharge means 35 is provided for registering the paper from the time when the first document is detected by the registration sensor 32a to the time when the paper jam or the paper jam of the transfer paper occurs. Among the originals detected by the sensor 32a, an original having an image surface on which an image transferred to one surface of the transfer paper is described, and the transfer from the time when the first original is detected by the registration sensor 32a. The document detected by the registration sensor 32a at the time closest to the time when the paper jam or the jam occurs in the transfer paper until the paper jam or the jam occurs is discharged to the discharge document mounting table 37. .

The reset original display means 36 displays the original discharged by the forced discharge means 35 and the forced discharge means 35.
The discharge document mounting table 37, which is the discharge destination of the document discharged as described above, is displayed. FIG. 3 is a schematic configuration diagram of an image forming apparatus according to one embodiment. In the image forming apparatus shown in FIG. 3, reference numeral 41 denotes an image forming apparatus.
Is configured similarly to that shown in FIG. The image transfer unit 43 has a plate-like member 43a provided on an upper portion on which the original document on which an image described on an image surface is transferred to one surface of the transfer paper can be placed. In the embodiment shown in FIG. 3, the contact glass 43b
It is composed of The document is a small-sized thin plate member 4 on which at least two sheets can be placed on the upper surface of the contact glass 43b in the direction of being ejected by the forcible ejection means 45.
9 is comprised.

FIG. 4 is a schematic configuration diagram of an image forming apparatus according to one embodiment. In the image forming apparatus shown in FIG.
Reference numeral 1 denotes an image forming apparatus, and the image forming apparatus 51 has the same configuration as that shown in FIG. FIG. 5 is a schematic configuration diagram of an image forming apparatus according to one embodiment. In the image forming apparatus shown in FIG. 5, reference numeral 61 denotes an image forming apparatus, and the image forming apparatus 61 has the same configuration as that shown in FIG. The image transfer means 63 has a plate-like member 63a on an upper part on which the original on which the image described on the image surface is transferred to one surface of the transfer paper can be placed, and the plate-like member 63a
Is made of a contact glass 63b in the embodiment shown in FIG. Further, the original is composed of a small-sized thin plate-like member 69 capable of placing at least two sheets on the upper surface of the contact glass 63b in the direction of being ejected by the forcible ejecting means 65.

FIG. 6 is a schematic configuration diagram of an image forming apparatus according to one embodiment. In the image forming apparatus shown in FIG.
Reference numeral 1 denotes an image forming apparatus. The image forming apparatus 71 includes an original detecting unit 72, an image transferring unit 73, and an original conveying unit 74.
, A forced discharge unit 75 and a reset original display unit 76. Document detecting means 72, image transferring means 73,
The forced discharge means 75 and the reset document display means 76
The configuration is the same as that shown in FIG.

The document conveying means 74 starts the transfer of the image described on the image surface of the i-th document (i is a natural number) by the image transfer means 73,
By the time the image written on the image surface of the + 1st document is transferred, the i + 2nd document is registered with the registration sensor 72a.
The document is conveyed so as to be detected by. FIG. 7 is a schematic configuration diagram of an image forming apparatus according to one embodiment. In the image forming apparatus shown in FIG. 7, reference numeral 81 denotes an image forming apparatus;
The image forming apparatus 81 has the same configuration as that shown in FIG. The image transfer means 83 has a plate-like member 83a on an upper part on which the original on which the image described on the image surface is transferred to one surface of the transfer paper can be placed, and the plate-like member 83a
Is made of a contact glass 83b in the embodiment shown in FIG. Further, the original is composed of a small-sized thin plate-like member 89 capable of placing at least two sheets on the upper surface of the contact glass 83b in the direction of being discharged by the forcible discharge means 85.

FIG. 8 is a schematic configuration diagram of an image forming apparatus according to one embodiment. In the image forming apparatus shown in FIG.
Reference numeral 1 denotes an image forming apparatus, and the image forming apparatus 91 has the same configuration as that shown in FIG. FIG. 9 is a schematic configuration diagram of an image forming apparatus according to one embodiment. In the image forming apparatus shown in FIG. 9, reference numeral 101 denotes an image forming apparatus;
The image forming apparatus 101 has the same configuration as that shown in FIG. The image transfer means 103 has a plate-like member 103a on an upper part on which the original on which the image described on the image surface is transferred to one surface of the transfer paper can be placed. In the embodiment shown in FIG. 5, the contact glass 103b is formed. Further, the original is placed on the upper surface of the contact glass 103b by a forcible discharge means 1.
And a small-sized thin plate-like member 109 on which at least two sheets can be placed in the direction in which the sheet is ejected.

Next, the operation will be described. In the image forming apparatus 31 shown in FIG. 2, the document conveying means 34 conveys the document, and when a paper jam or a jam occurs in the transfer sheet, the forcible discharging means 35 causes the registration sensor 32a to detect the first document. The image on which the image transferred to one surface of the transfer paper is described from among the originals detected by the registration sensor 32a from the time when is detected to the time when the paper jam or the jam occurs in the transfer paper. Between the time when the first document is detected by the registration sensor 32a and the time when the paper jam or the jam occurs in the transfer paper. The document detected by the registration sensor 32a at the closest time is discharged to the discharge document mounting table 37, and the reset document display means 36 displays, for example, " Show Idehara Kono been original and discharging the document table 37 discharge the two upper table 37 in a representation like please set again "by forced discharge means 35.

Therefore, after the image described on the image surface of the second document is transferred to the other surface of the first transfer sheet by the image transfer means 33, the third sensor is used by the registration sensor 32a. When a paper jam or a jam occurs in the first transfer sheet before a document is detected, the forced discharge means 35 causes the first document and the second document to be the same discharged document. Since the document is discharged to the mounting table 37, the operator looks at the reset document display means 36 to easily recognize the document that needs to be set again by the operator due to a paper jam or a jam of the transfer sheet. This makes it possible to improve the operability of resetting the original by the operator, so that even if the paper jams or jams in the transfer paper, it can be written on the image side of the original without any omission and disorder of the page order. Images can be transferred was.

In the image forming apparatus 41 shown in FIG. 3, after the image described on the image surface of the second document is transferred to the other surface of the first transfer paper by the image transfer means 43. When the first transfer sheet is jammed or jammed before the third document is detected by the registration sensor 42a, the first sheet and the Since the second document is discharged to the same discharge document mounting table 48, the operator looks at the reset document display means 46, and even if the document is constituted by the small-sized thin plate member 49, the transfer is performed. The document that needs to be set again by the operator because a paper jam or a jam has occurred can be easily recognized, and the operability of resetting the document by the operator can be improved. Therefore, even if a paper jam or a jam occurs in the transfer paper, the image described on the image surface of the document can be transferred without any leakage and without disorder of the page order.

In the image forming apparatus 51 shown in FIG. 4, the transfer of the image described on the image side of the third document to one side of the second transfer sheet by the image transfer means 53 is started. When the second transfer sheet is jammed or jammed before the registration of the fourth document by the registration sensor 52a after the registration, the forcible discharge means 55 causes the third sheet to be removed. Since the original is discharged to the discharge original placing table 58 which is different from the discharge original placing table 57 to which the second original is discharged, the operator views the reset original display means 56 so that the transfer paper is jammed. Alternatively, it is possible to easily recognize the document that needs to be set again by the operator due to the occurrence of a jam, so that even if a paper jam or a jam of the transfer paper occurs, the document is not leaked and the page order is not disordered. of It is possible to transfer an image described in the image plane.

In the image forming apparatus 61 shown in FIG. 5, the transfer of the image described on the image side of the third document to one side of the second transfer sheet by the image transfer means 63 is started. When the second transfer sheet is jammed or jammed before the registration of the fourth document by the registration sensor 62a after the completion of the operation, the forcible discharge means 65 causes the third sheet to be removed. Since the original is discharged to a discharge original mounting table 68 different from the discharge original mounting table 67 to which the second original is discharged, the operator views the reset original display means 66 to reduce the size of the original to a small size. Thin plate member 69
Even if the transfer paper is jammed or jammed, the operator can easily recognize the document that needs to be set again because a paper jam or jam has occurred. It is possible to transfer the image described on the image surface of the document without any leakage and without disorder of the page order.

In the image forming apparatus 71 shown in FIG. 6, after the image described on the image side of the second original is transferred to the other side of the first transfer paper by the image transfer means 73. When the first transfer sheet is jammed or jammed before the fourth document is detected by the registration sensor 72a, the first document, the first document, Since the second document and the third document are discharged to the same discharge document mounting table 77, the operator may use, for example, an expression such as "Please set the upper 3 sheets of the discharge document mounting table 77 again". The first document, the second document, the third document, and a discharge document mounting table 77 to which the three documents are discharged.
Is displayed, the operator can easily recognize the document that needs to be set again by the operator because the paper jam or the jam of the transfer paper has occurred, and the paper jam of the transfer paper can be recognized. Alternatively, even if a jam occurs, the image described on the image surface of the document can be transferred without any leakage and without disorder of the page order.

In the image forming apparatus 81 shown in FIG. 7, after the image described on the image side of the second document is transferred to the other side of the first transfer sheet by the image transfer means 83. When the first transfer sheet is jammed or jammed before the fourth document is detected by the registration sensor 82a, the first document, the first document, Since the second document and the third document are discharged to the same discharge document mounting table 88, the operator looks at the reset document display means 86,
Even if the original is composed of the small-sized thin plate-like member 89, it is possible to easily recognize the original that needs to be set again by the operator due to a paper jam or a jam of the transfer paper, and Even if a paper jam or a jam occurs, the image described on the image surface of the document can be transferred without leakage and without disorder of the page order.

In the image forming apparatus 91 shown in FIG. 8, the transfer of the image described on the image side of the third document to one side of the second transfer sheet by the image transfer means 93 is started. When the second transfer sheet is jammed or jammed before the fifth document is detected by the registration sensor 92a after the registration, the forcible discharge means 95 causes the third sheet to be removed. Since the original and the fourth original are discharged to the discharge original mounting table 98 different from the discharge original mounting table 97 to which the second original is discharged, the operator looks at the reset original display means 96. Since the discharge destinations of the third document and the fourth document can be known, it is easy to recognize the document that needs to be set again by the operator due to a paper jam or a jam of the transfer paper. It is possible Be a paper jam or jam of the transfer sheet is generated, without troubling the operator, without exception, also, it is possible to transfer an image described in the image plane of the page order of deviation without the document.

In the image forming apparatus 101 shown in FIG. 9, the transfer of the image described on the image side of the third document to one side of the second transfer sheet by the image transfer means 103 is started. When the second transfer sheet is jammed or jammed before the registration of the fifth document by the registration sensor 102a after the registration, the forcible discharge means 105 causes the third sheet to be removed. An output document mounting table 1 on which the original and the fourth original are discharged destinations of the second original.
Since the document is discharged to the discharge document mounting table 108 different from 07, the operator can know the discharge destination of the third document and the fourth document by looking at the reset document display means 106. The original is a small-sized thin plate-like member 1
09, the operator can easily recognize the document that needs to be set again due to a paper jam or a jam of the transfer paper, and even if the paper jam or the paper jam of the transfer paper occurs. It is possible to transfer the image described on the image surface of the original without any trouble of the operator, without any leakage, and without disorder of the page order.

[0038]

According to the present invention, a document is transported by the document transport means,
When a paper jam or a jam of the transfer paper occurs, the forcible discharge means is provided to the forcible discharge means from the time when the first document is detected by the document detection means to the time when the paper jam or the jam of the transfer paper occurs. When a document having an image surface on which an image transferred to one surface of the transfer sheet is described, and a first document is detected by the document detection unit, among the documents detected by the document detection unit Between the time when the paper jam or the paper jam of the transfer paper occurs and the time when the paper jam or the paper jam of the transfer paper is closest to the time when the paper is detected by the document detecting means, The document is discharged to the document mounting table and the reset document display means displays the document discharged by the forcible discharge means and the discharged document mounting table. By looking at the reset document display means, the operator can easily recognize the document that needs to be set again due to a paper jam or a jam of the transfer sheet, and the operability of resetting the document by the operator. Can be improved. For this reason, even if a paper jam or a jam occurs in the transfer paper, the image surface of the original can be transferred without any trouble and without any trouble of the operator and without disorder of the page order.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an example of a conventional image forming apparatus.

FIG. 2 is a schematic configuration diagram of an embodiment of an image forming apparatus according to the present invention.

FIG. 3 is a schematic configuration diagram of an image forming apparatus according to an embodiment.

FIG. 4 is a schematic configuration diagram of an image forming apparatus according to an embodiment.

FIG. 5 is a schematic configuration diagram of an image forming apparatus according to an embodiment.

FIG. 6 is a schematic configuration diagram of an image forming apparatus according to one embodiment.

FIG. 7 is a schematic configuration diagram of an image forming apparatus according to an embodiment.

FIG. 8 is a schematic configuration diagram of an image forming apparatus according to an embodiment.

FIG. 9 is a schematic configuration diagram of an image forming apparatus according to an embodiment.

FIG. 10 is a diagram illustrating a flow of a document conveying process performed by the image forming apparatus according to the embodiment;

[Explanation of symbols]

 31 Image Forming Apparatus 32 Document Detecting Means 32a Registration Sensor 33 Image Transfer Means 34 Document Conveying Means 35 Forced Ejecting Means 36 Reset Document Displaying Means 37 Discharged Document Placement Base 41 Image Forming Apparatus 42 Document Detecting Means 42a Registration Sensor 43 Image Transfer Means 43a Plate-shaped member 44 Document transport means 45 Forced discharge means 46 Reset document display means 48 Discharged document mounting table 49 Small-sized thin plate-shaped member 51 Image forming device 52 Document detection means 52a Registration sensor 53 Image transfer means 54 Document transport means 55 Forced discharge Means 56 Reset document display means 57 Discharged document placing table (first discharged document placing table) 58 Discharged document placing table (second discharged document placing table) 61 Image forming device 62 Document detecting means 62a Registration sensor 63 Image transfer means 63a Plate -Shaped member 64 Document conveying means 5 Forced Ejection Means 66 Reset Document Display Means 67 Discharged Document Placement Table (First Discharged Document Placement Table) 68 Discharged Document Placement Table (Second Discharged Document Placement Table) 69 Small Size Thin Plate Member 71 Image Forming Device 72 Document Detection Means 72a Registration sensor 73 Image transfer means 74 Document transfer means 75 Forced discharge means 76 Reset document display means 77 Discharged document mounting table 81 Image forming device 82 Document detection means 82a Registration sensor 83 Image transfer means 83a Plate member 84 Document transfer means 85 Forced discharge means 86 Reset document display means 88 Discharge document mounting table 89 Small-sized thin plate member 91 Image forming device 92 Document detection means 92a Registration sensor 93 Image transfer means 94 Document transport means 95 Forced discharge means 96 Reset document display means 97 Document delivery table (first document placement table) 98 Document Discharge Placement Table (Second Discharge Document Placement Table) 101 Image Forming Apparatus 102 Document Detection Means 102a Registration Sensor 103 Image Transfer Means 103a Plate Member 104 Document Conveyance Means 105 Forced Discharge Means 106 Reset Document Display Means 107 Discharge Document Placement Placement table (first discharge document placement table) 108 Discharge document placement table (second discharge document placement table) 109 Small-sized thin plate-shaped member

Claims (7)

[Claims] An original detecting means for detecting the original between a time when the original is placed and a time when an image described on an image surface of the original is transferred to one surface of a transfer sheet; The (2n + 1) th sheet (n
Is zero or a natural number), the image written on the image surface of the original is transferred to one side of the (n + 1) th transfer sheet, and the image written on the image surface of the (2n + 2) th original is transferred to the (n + 1) th transfer sheet. An image transfer unit that transfers the image to the other surface of the paper; and an (i + 1) th sheet from the time when the image described on the image surface of the i-th (i is a natural number) document is transferred by the image transfer unit. Document transport means for transporting the document so that the (i + 1) th document is detected by the document detection means before the image written on the image surface of the document is transferred; and When a paper jam occurs, a document detected by the document detection unit between a time when the first document is detected by the document detection unit and a time when the paper jam of the transfer sheet or the paper jam occurs is set. A document having a serial image surface is described image transferred to one side of the transfer sheet, by said document detecting means 1
From the time when the first document is detected to the time when the paper jam or the paper jam of the transfer paper occurs, the paper is detected by the paper document detecting means at the time closest to the paper jam or the paper jam of the transfer paper. Forcibly ejecting the original that has been ejected to the ejected document placing table, and displaying the original ejected by the compulsory ejecting means and the ejected document placing table to which the original ejected by the forced ejecting device is to be discharged. Reset document display means, and when the document is transported by the document transport means and a paper jam or a jam of transfer paper occurs, the first document is detected by the document detection means by the forced discharge means. Out of the originals detected by the original detecting means during a period from when the transfer is performed to when a paper jam or a jam occurs in the transfer paper, A document having an image surface on which an image transferred to one surface is described, and a document from the time when the first document is detected by the document detecting means to the time when a paper jam or a jam occurs in the transfer paper. The document detected by the document detection unit at the time closest to the time when a paper jam or a jam occurs in the transfer paper is discharged to the predetermined discharge document mounting table, and the reset document display unit displays An image forming apparatus for displaying a document discharged by the forcible discharge unit and the discharge document mounting table to which the document discharged by the forcible discharge unit is discharged. 2. A document detecting means for detecting the document between a time when the document is placed and a time when an image described on an image surface of the document is transferred to one surface of a transfer sheet; The (2n + 1) th sheet (n
Is zero or a natural number), the image written on the image surface of the original is transferred to one side of the (n + 1) th transfer sheet, and the image written on the image surface of the (2n + 2) th original is transferred to the (n + 1) th transfer sheet. An image transfer unit that transfers the image to the other surface of the paper; and an (i + 1) th sheet from the time when the image described on the image surface of the i-th (i is a natural number) document is transferred by the image transfer unit. Document transport means for transporting the document so that the (i + 2) -th document is detected by the document detection means by the time the image written on the image surface of the document is transferred, and paper jam or jam of transfer paper Occurs, when the first document is detected by the document detection means and when the paper jam or jam occurs in the transfer sheet, A document image transferred to the one surface of the transfer paper has image surface described by said document detecting means 1
From the time when the first document is detected to the time when the paper jam or the paper jam of the transfer paper occurs, the paper is detected by the paper document detecting means at the time closest to the paper jam or the paper jam of the transfer paper. Forcibly ejecting the original that has been ejected to the ejected document placing table, and displaying the original ejected by the compulsory ejecting means and the ejected document placing table to which the original ejected by the forced ejecting device is to be discharged. Reset document display means, and when the document is transported by the document transport means and a paper jam or a jam of transfer paper occurs, the first document is detected by the document detection means by the forced discharge means. Out of the originals detected by the original detecting means during a period from when the transfer is performed to when a paper jam or a jam occurs in the transfer paper, A document having an image surface on which an image transferred to one surface is described, and a document from the time when the first document is detected by the document detecting means to the time when a paper jam or a jam occurs in the transfer paper. The document detected by the document detection unit at the time closest to the time when a paper jam or a jam occurs in the transfer paper is discharged to the predetermined discharge document mounting table, and the reset document display unit displays An image forming apparatus for displaying a document discharged by the forcible discharge unit and the discharge document mounting table to which the document discharged by the forcible discharge unit is discharged. 3. The image transfer means has a plate-shaped member provided on an upper portion on which the original on which an image described on an image surface is transferred to one surface of the transfer paper can be placed. 3. The document according to claim 1, wherein at least two originals are placed on the upper surface of the plate-like member in a direction in which the document is ejected by the forcible ejection unit. Image forming device. 4. After the image described on the image surface of the second document is transferred to the other surface of the first transfer paper by the image transfer means, the third document is detected by the document detection means. When a paper jam or a jam occurs in the first transfer sheet before a document is detected, the first document and the second document are output by the forcible discharge unit. The image forming apparatus according to claim 1, wherein the image is discharged to a mounting table. 5. After the transfer of the image described on the image side of the third document to one side of the second transfer paper by the image transfer means is started, the image is detected by the document detection means. When a paper jam or a jam occurs in the second transfer sheet before the detection of the second document, the third document is discharged to the discharge destination of the second document by the forcible discharge means. 4. The image forming apparatus according to claim 1, wherein the sheet is discharged to a second discharged document mounting table different from the first discharged document mounting table. 6. After the image described on the image surface of the second document is transferred to the other surface of the first transfer paper by the image transfer means, the fourth document is detected by the document detection means. When a paper jam or a jam occurs in the first transfer sheet before a document is detected, the first document, the second document,
The image forming apparatus according to claim 2, wherein the first document and the third document are discharged to the same discharge document mounting table. 7. After the transfer of the image described on the image side of the third document to one side of the second transfer paper by the image transfer means is started, the document detection means starts the transfer. When a paper jam or a jam occurs in the second transfer sheet before the detection of the third document, the third document and the fourth document are output by the forcible discharge means.
4. The image forming apparatus according to claim 2, wherein the second original is discharged to a second discharge original placing table different from the first discharge original placing table to which the second original is discharged. apparatus.