JP3106725B2 - Recording paper processing device for image forming apparatus - Google Patents

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 an electronic copying machine for producing a large-sized recording sheet as shown in the drawings and the like, and to a post-processing apparatus disposed in a recording sheet discharge section. More particularly, the present invention relates to a recording paper processing apparatus of an image forming apparatus which is provided with a means for winding a long recording paper into a cylindrical shape by a paper winding device, affixing an adhesive tape to seal the recording paper, and discharging the recording paper formed as a paper roll.

[0002]

2. Description of the Related Art In an image forming apparatus, such as an electronic copying machine or a laser printer, for forming a recording sheet by using an electrophotographic method, a sheet cut into a fixed size such as A3 or B4 size is used. Use, according to the size of the manuscript,
Means for selecting a sheet of an appropriate size and creating a recording sheet is used. In the electronic copying machine, a plurality of paper feed trays and paper feed cassettes are accommodated in a paper feed unit, and the size of a document and paper are selected based on information such as a reduction / enlargement ratio.
A means for feeding paper toward the image forming unit is configured. Then, the recording paper created in the image forming apparatus is fixed through a fixing device and then discharged toward a discharge tray or the like.

[0005] In addition to the above-described electronic copying machine using small-sized paper, an electrophotographic copying machine used for creating a drawing, an image forming apparatus such as a plotter, and the like, have an A0 size or an A1 size. 2. Description of the Related Art Recording paper is created using large-sized paper such as a size. As an example of an image forming apparatus for the drawings, an electronic copying machine will be described. For example, as shown in Japanese Patent Application Laid-Open No. 1-187133, a wide roll paper is mounted on a paper feeding unit,
2. Description of the Related Art An apparatus configured to cut a sheet fed from a roll sheet in accordance with the size of a document to create a large-sized recording sheet is used.

[0004]

However, the recording paper made by the large-sized electronic copying machine can be discharged as an arbitrary length paper. However, in a conventional electronic copying machine, a long recording paper is used as it is. It is discharged in a continuous state, and is deposited as it is on a receiving member such as a large box.
For the long recording paper as described above, it is necessary for the operator to stand by at the recording paper discharge unit and perform operations such as winding the long recording paper. Therefore, in the conventional electronic copying machine, especially when a long recording paper is to be produced, it is necessary to arrange the recording paper so that the recording paper is not scattered at the outlet of the apparatus. ing.

[0005] Using a large-sized document as described above,
In addition to creating recording paper, recent large-sized electronic copiers use image information output devices such as computers.
In some cases, a mechanism for continuously discharging large-sized recording paper based on image information output from an output device in combination with an electronic copying machine may be configured. Further, in a device for creating a large-sized recording sheet by connecting an output device such as a computer to an electronic copying machine, a plurality of output devices may be connected to one electronic copying machine. Therefore, in response to a recording paper creation command from any output device,
When creating recording paper, unless the operator is always waiting near the electronic copier, the recording paper cannot be organized and large-sized recording paper will be scattered around the electronic copier. Occurs.

Therefore, in order to solve the above-mentioned problem, an apparatus that folds a large-sized recording sheet into a standard size has been used. As the paper folding device, for example, a device configured as shown in JP-A-63-196462 can be used. However, drawings created using a plotter or the like generally have originality, and are often used for checking the concept of recording paper. Therefore, it is not preferable to use the folding device as shown in the conventional example, and there is a problem in post-processing when a large-sized recording paper is created.

Therefore, instead of using the folding device as described above, for example, Japanese Utility Model Laid-Open No. 1-149363.
As disclosed in Japanese Unexamined Patent Publication (Kokai) No. H10-264, it has been proposed to arrange a paper wrapping mechanism with respect to a discharge tray for discharging recording paper so that the work of checking the recording paper can be easily performed. In the recording paper processing apparatus shown in the conventional example,
By arranging a mechanism to wind the paper at the end of the discharge tray and holding the long recording paper in a cylindrical state, the operator does not need to wind the recording paper during the copying operation. Processing work can be simplified. However, as described above, even when a mechanism for automatically winding a long recording sheet is arranged, each time one sheet of recording sheet is ejected, the recording sheet is taken out from the ejection tray.
Transfer to another storage device is required. In addition, the recording paper in the form of a paper roll may easily spread to its original state when it is not stapled, and there is a problem that subsequent storage is troublesome. Further, when continuously producing large-sized recording paper, the operator is required to process a long document and a cylindrical paper every time one recording paper is produced, which is relatively troublesome. It is necessary to perform various operations sequentially.

[0008]

SUMMARY OF THE INVENTION An object of the present invention is to solve the problem of organizing recording paper in an electronic copying machine for producing large-sized recording paper as described above. A device for automatically sealing the recording paper formed as a paper roll and arranging it so that the paper stored in the discharge tray can maintain the shape of the paper roll and facilitate post-processing. It is intended to provide.

[0009]

SUMMARY OF THE INVENTION According to the present invention, a large-size roll paper is mounted on a paper feeding section, and the paper fed from the paper feeding section is cut in accordance with the size, and a large-size recording is performed. The present invention relates to a post-processing device that is connected to an image forming apparatus that creates paper and that forms and discharges recording paper as roll paper. Means for disposing a paper winding device in the post-processing device of the present invention, and rounding and discharging a sheet created as a recording sheet to a predetermined diameter,
Means for directly discharging the paper through a paper guide path of the paper winding device, wherein in the paper winding device, a guide member for guiding a large-sized sheet to a cylindrical forming portion; and a sheet along the guide member. A drive roller member that performs a feeding action on
Also, a mechanism is provided for attaching and sealing an adhesive tape or the like to the paper sheet formed in a cylindrical shape, and a guide member for guiding the paper sheet in a cylindrical shape opens a part of the member and discharges the roll paper. A mechanism is provided.

In the recording paper processing apparatus of the image forming apparatus according to the present invention, the guide member provided in the paper winding device is constituted by combining an upper guide member and a lower guide member having a substantially semicircular shape, and is disposed at a fixed position. The lower guide member is provided so as to be openable and closable with respect to the upper guide member, and a gate member is disposed with respect to the guide member. At a position where the gate arm of the gate member is arranged along the lower portion of the lower guide member, the recording paper is formed. At the position where the gate arm of the gate member is separated from the upper part of the lower guide member, a state in which the recording paper is directly discharged is set, and the gate is linked with the opening operation of the lower guide member. It is configured such that an operation of pushing out the wrapping paper from the guide member can be performed by the pushing arm provided on the member.

By configuring the recording paper processing apparatus of the image forming apparatus as described above, an electronic copier equipped with the post-processing apparatus of the present invention can be used even when a long, large-sized recording paper is continuously produced. Since such recording paper can be automatically discharged as a paper roll, post-processing of copying can be easily performed. In addition, the paper winding device provided in the post-processing device detects the rear end of the paper and automatically applies an adhesive tape or the like to seal the paper. No recording occurs, and the recording paper can be easily stored. Further, in the paper winding device of the present invention, a mechanism for directly discharging the recording paper which does not need to produce a paper roll can be provided, so that the winding processing is performed on a relatively small size paper. Instead, it can be discharged directly to the discharge tray.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A recording paper processing apparatus of an image forming apparatus according to the present invention will be described with reference to the illustrated example. The example shown in FIG. 1 shows the configuration of an electronic copying machine 1 of the present invention and a post-processing device 20 provided to accompany the electronic copying machine 1. An output device 15 such as a computer is connected to the electronic copying machine 1 in order to output image information, and a writing device 3 is output from digital information output from the output device 15.
And a mechanism for writing image information on the photosensitive drum 2 by using the image data. In the electronic copying machine 1, a writing device 3 that writes on a photosensitive drum 2 using a laser beam
In addition to the developing device 4 and the cleaning device 6, a transfer corotron 5 is disposed at an image transfer portion of the photosensitive drum.

In the above-described electronic copying machine, as in the case of an image forming apparatus using a general electrophotographic system, image information is written on the photosensitive drum to form an electrostatic latent image.
A toner device is supplied to the electrostatic latent image from a developing device to form a toner image, and the toner image is transferred to a sheet. Then, the sheet on which the toner image has been transferred from the photosensitive drum is passed through a fixing device 10 configured as a fixing device of a heat roller type, and is fixed, and is discharged as recording paper.

In the electronic copying machine 1, a plurality of roll papers 7 and 7a having different sizes and paper qualities can be provided in a paper feed unit. The sheet is conveyed, and the cutter 9 is operated in accordance with the information on the length of the image, so that a recording sheet having a required length can be created. Further, the paper feeding unit can accommodate a plurality of papers having different widths, such as tracing papers, used for creating drawings, and an operator can specify papers or a paper size. Will be able to.
The post-processing device 20 used in combination with the electronic copying machine 1 is connected to a paper conveyance path via a discharge roller 14 at a downstream portion of the fixing device 10 of the electronic copying machine. The post-processing device 20 is equipped with a paper winding device 25, and constitutes a mechanism for automatically winding and sealing a large-sized recording paper and discharging the recording paper toward the discharge tray 45 as a paper roll.

The post-processing device 20 is provided with a mechanism for winding the recording paper and sealing as shown in FIG. The post-processing device 20 shown in FIG. 2 performs a sheet conveying path 21 connected to a discharge path of an electronic copying machine, a paper winding device 25 disposed at an end of the sheet conveying path, and a sealing operation of the wrapping paper. And a labeler 50. The paper transport path 21 shown in FIG. 2 is provided with an upper guide plate 22 provided to be openable and closable and a lower guide plate 23 disposed at a fixed position at a predetermined interval. The transport roller device 24 is disposed at a predetermined position. Further, the transport roller device 2 disposed in the paper transport path 21
Reference numeral 4 denotes a structure in which the conveyance speed is changeable. After the trailing edge of the sheet passing through the fixing device 10 is detected, the preceding sheet is conveyed at a high speed, and a gap is formed between the front and rear sheets. It is formed so that the operation of making the wrapping paper by the paper winding device and the sealing operation using the adhesive tape member can be easily performed.

A paper winding device 25 disposed at the end of the paper transport path includes an upper semicircular guide 26 disposed at a fixed position for guiding the paper to be rolled, and a lower swingable configuration. It is provided in combination with a semicircular guide 27. Further, three drive roller members 32 to 34 are arranged around the guide member of the paper winding device 25,
These drive roller members guide the sheet in a direction in which the sheet is curved. Of the three drive roller members, the roller members 32 and 33 are provided on a swing arm 30, and the swing arm 30 is swingably provided via a support shaft 31. A lower semicircular guide 27 is attached to the swing arm 30 in addition to the roller member. By swinging the swing arm 30, the lower half of the paper winding device 25 is opened, and the roll paper is dropped. To be able to

In addition to the two guide members 26 and 27 having a semicircular cross section constituting the guide means, the paper winding device 2 of the present invention is provided.
The guide section 5 corresponds to the upper semicircular guide 26,
A gate member 35 supported at a predetermined position via a support shaft 37 is provided. The gate member 35 is shown in FIGS.
As shown in FIG.
Are arranged along the lower semicircular guide 27, and the other is provided with an extrusion arm 38. The gate member 35 is held at the position shown in FIG. 2 when the recording paper inserted into the paper winding device is formed as a paper roll. On the other hand, when the wrapping paper is discharged from the paper wrapping device 25, the wrapping paper is rocked following the rocking arm 30, and the paper is discharged as shown in FIG.
Is opened to the state shown in FIG. 3, and at the time of swinging, the pushing arm 38 acts in a direction to push down the upper part of the wrapping paper to assist the operation of discharging the wrapping paper. When the recording paper is directly discharged without specifying the winding, the recording paper is swung to the position shown in FIG. 5 to form a paper guide path, and the operation of discharging the recording paper via the discharge path is performed. To do.

Further, in the apparatus of the present invention, as shown in FIGS.
0 is arranged, and after the paper is formed, a label supplied from a labeler is attached so that the paper can be bound. In addition, the label as the adhesive tape member used as the sealing means of the wrapping paper of the present invention can use a commercially available label, and has a length of about half the circumference of the paper wrapping device 25. Can be used. In the labeler 50, the roll-shaped label mount supported by the label holder 51 is separated from the guide member 5.
6 and is guided toward the winding shaft 52 via a peeling bar 53 disposed at the distal end of the guide member. The guide member 56 has a guide surface 57 on the supply side and a guide surface 58 for guiding the backing paper. At a predetermined position on the guide surface 58 on the unwinding side of the mount, a feed roll 59 from which a large number of needles are projected is arranged so as to perform an action of feeding the label mount toward the winding shaft 52. To

The labeler 50 separates the label from the label mount when the long mount holding the label at a predetermined interval is sharply bent by the peeling bar 53.
A label is attached to the wrapping paper so that the rear end of the wrapping paper can be sealed. Further, the swing arm 55 is provided so as to be swingable via a support shaft 55a, and waits at a position where the swing arm 55 swings clockwise in FIG.
It is possible to set a state in which the peeling bar 53 at the lower end of the guide member 56 is pressed toward the wrapping paper only when the label is attached to the wrapping paper.

[0020]

In the post-processing apparatus 20 of the present invention constructed as described above, when the recording paper is discharged from the electronic copying machine, the leading end of the recording paper is moved to the paper transport path 2.
1, the paper winding device 25
Conveyed toward. Then, the sheet is guided in the winding direction by a driving roller member protruding from the inner surface of the cylindrical guide of the paper winding device 25, and the sheet is wound into a cylindrical shape. In the paper winding device, when the trailing end of the paper discharged from the fixing device is detected by the sensor S1 at the last stage of the operation of winding the paper, the transport roller device 24 provided in the paper transport path 21 is moved. It is driven at a high speed so as to keep a distance from a subsequent sheet conveyed at a constant speed. Then, a predetermined interval is formed between the trailing end of the recording paper wound inside the paper winding device and the leading end of the subsequent paper, and before the leading end of the subsequent paper enters the paper winding device. Then, the rear end of the recording paper created as a wrapping paper can be sealed by attaching a tape member.

As described above, the winding of the paper in the paper winding device 25 is completed, and the rear end of the paper formed as a paper roll in the paper winding device 25 is detected using the detection information of the rear end of the paper. When the timing of reaching the position where the label is to be applied is checked, the guide member 56 is swung toward the paper winding device as shown in FIG. Then, in the labeler 50, the swing arm 55 is swung counterclockwise about the shaft 55a to bring the peeling bar 53 close to the surface of the wound paper while being rotated inside the guide means. At the same time, the winding shaft 52 and the feed roll 59
Are driven to feed the label mount 60 by a predetermined length. When the label mount is driven, the label mount 6
When 0 is sharply curved at the peeling bar 53, the label 62 held on the label mount 60 is peeled off and attached to the wrapping paper Pa rotating in the paper winding device 25. Also, as described above, the wrapping paper P
The label 62 attached to a is pressed toward the wrapping paper Pa by the pressing roll 55b disposed at the lower end of the swing arm 55, and performs an operation of attaching and holding the end of the paper to the main body of the wrapping paper. To do.

After forming the wrapping paper Pa in the paper winding device 25 as described above, the swing arm 30 is oscillated to discharge the wrapping paper Pa, as shown in FIG. The swing arm 30 is supported by a support shaft 31 and is provided with a lower semicircular guide 27. Therefore, as shown in FIG. 4, when the swing arm 30 is swung counterclockwise through the support shaft 31, the lower portion of the paper winding device 25 is opened. The wrapping paper Pa stored inside is
You lose your support and fall naturally. By following the swinging operation of the swing arm 30 and swinging the gate member 35 counterclockwise through the support shaft 37, the pushing arm 38 provided on the gate member 35 raises the paper roll. Since the action of pressing down from the paper roll is added, the operation of discharging the wrapper Pa can be assisted.

[0023]

[Case of Directly Discharging Recording Paper] In the above-described embodiment of the present invention, the case where the recording paper is formed as a wrapping paper has been described.
An operation of directly discharging can be performed without operating the paper winding device. In order to meet the above purpose, as shown in FIG.
5 are arranged. The gate member 35 is swingably provided via a support shaft 37, and a gate arm 36 is provided so as to protrude at a lower portion. The gate arm 36
Is configured as a very long arm member, and the outer surface of the gate arm 36 has the same curvature as the lower semicircular guide 27. Then, the gate member 35 is swung to the state shown in FIG. 5 to set an interval for guiding the paper between the outer surface of the gate arm 36 and the inner surface of the lower semicircular guide 27, Guideways can be formed.

As shown in FIG. 5, a discharge path 40 and a discharge roller 41 are arranged downstream of the paper guide path with respect to the paper winding device 25 of the present invention. And
When the mode in which the paper is not involved is selected, the drive mechanism for the gate member 35 (not shown) is operated to swing the gate member 35 to the position shown. Then, the recording paper conveyed by the conveyance roller device 24 in the paper conveyance path 21 is guided to the discharge path 40 through the space between the gate arm 36 and the lower semicircular guide 27, and the post-processing device is discharged by the discharge roller 41. So that it is drained out of the In the state shown in FIG. 5, it is also effective to drive the driving roller member disposed in the paper winding device 25 and to assist the sheet discharging operation by the roller members 32 and 33.

[0025]

Since the recording paper processing apparatus of the image forming apparatus of the present invention is constructed as described above, in an electronic copying machine equipped with the post-processing apparatus of the present invention, a long and large recording paper is used. Can be automatically discharged as a paper roll even when paper is continuously created, so that post-processing of copying can be easily performed. In the paper winding device provided in the post-processing device, the trailing edge of the paper is detected,
Since the adhesive tape or the like is automatically attached, the paper roll can be easily opened, and there is no problem in use, and storage of the recording paper can be easily performed. further,
In the recording paper processing apparatus of the image forming apparatus of the present invention, a mechanism for directly discharging recording paper that does not need to create a wrapping paper can be provided. The sheet can be discharged directly to the discharge tray without performing the entanglement processing.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an electronic copying machine equipped with a post-processing device of the present invention.

FIG. 2 is an explanatory diagram illustrating a configuration of a post-processing device of the present invention.

FIG. 3 is an explanatory diagram of a state in which a label is attached to recording paper formed as a wrapping paper by a paper wrapping device.

FIG. 4 is an explanatory diagram of an operation of discharging a paper roll from a paper winding device.

FIG. 5 is an explanatory diagram in a case where recording paper is directly discharged.

[Explanation of symbols]

1 electronic copier, 3 writing device, 10
Fixing device, 20 post-processing device, 21 paper transport path, 24 transport roller device, 25 paper winding device,
26 upper semicircular guide, 27 lower semicircular guide, 30 swing arm, 32 to 34 drive roller member, 35 gate member, 36 gate arm,
38 extrusion arm, 40 discharge path, 45
Discharge tray, 50 labeler, 51 label holder, 52 take-up shaft, 53 peeling bar, 55
Swing arm, 56 guide members, 60 label mount, 62 labels.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65H 37/04 B65H 19/00-19/30 B65H 31/00-31/40

Claims (2)

(57) [Claims] 1. An image forming apparatus for mounting a wide large-size roll paper on a paper feeding unit, cutting the paper fed from the paper feeding unit according to the size, and creating a large-size recording paper, Connect the post-processing device to the paper discharge unit of the image forming device,
A paper winding device is disposed in the post-processing device, and means for discharging the paper formed as recording paper to a predetermined diameter and discharging the paper directly through a paper guide path of the paper winding device. In the paper winding device, a guide member for guiding a large-sized sheet to a cylindrical forming portion, a drive roller member for feeding the sheet along the guide member, and a sheet formed in a cylindrical shape. On the other hand, the image forming apparatus is provided with a sealing mechanism for attaching an adhesive tape or the like, and a guide member for guiding the paper in a cylindrical shape is provided with a mechanism for opening a part of the guide member and discharging the roll paper. The recording paper processing unit of the device. 2. A guide member provided in the paper winding device is constituted by combining an upper guide member and a lower guide member having a substantially semicircular shape, and the lower guide member is arranged with respect to the upper guide member arranged at a fixed position. The gate member is disposed so as to be openable and closable, and a gate member is arranged with respect to the guide member, and at a position where the gate arm of the gate member is along the lower portion of the lower guide member, an operation of forming a recording paper as a wrapping paper is performed. At a position where the gate arm is separated from the upper part of the lower guide member, a state in which the recording paper is directly discharged is set.In conjunction with the opening operation of the lower guide member, the extruding arm provided on the gate member guides the paper roll to the guide member. 2. The recording paper processing apparatus of the image forming apparatus according to claim 1, wherein the recording paper processing apparatus performs an operation of extruding the recording paper.