JPH0680297A - Recording paper processing device of image forming device - Google Patents

Abstract

PURPOSE:To exhaust a recording paper in the condition the desired side of the front and the rear surfaces of the recording paper is faced upward, by providing a mechanism to exhaust the recording paper directly, as well as setting a paper winding device at the recording paper exhaust part of an image forming device so as to compose the system to form a long recording paper into a rolled paper. CONSTITUTION:At the recording paper exhaust part of an electronic copying machine, an after-treatment device is connected and set, a paper sheet is formed into a rolled paper by using a paper winding device 25 provided inside the after-treatment device, and the rolled paper is sealed by using a label or the like so as to prevent its loosening. Furthermore, a passage to exhaust the rolled paper directly is provided to the paper winding device, and by guiding with an exhaust guide 42 provided in an exhaust passage 40, the recording paper is to be housed in an exhaust tray 46 in the condition the desired side of the front surface and the rear surface is faced upward.

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 making a large size recording paper as shown in a drawing and the like, and to a post-processing apparatus arranged at a recording paper discharge portion thereof. , In particular, by winding a long recording paper in a cylindrical shape by a paper winding device, providing a means for sticking and sealing an adhesive tape, and discharging the recording paper formed as a wrapping paper,
A means for directly ejecting the recording paper, which does not need to be rolled up, through a paper guide path provided in the paper winding device is provided, and in the ejection tray, the recording paper can be accommodated with any surface of the front and back sides facing upward. The present invention relates to a recording paper processing device of an image forming apparatus.

[0002]

2. Description of the Related Art In an image forming apparatus such as an electronic copying machine or a laser printer which produces a recording sheet by using an electrophotographic method, a sheet cut into a standard size such as A3 or B4 size is used. Use, according to the size of the original,
Means for selecting a suitable size of paper and creating a recording paper are used. In the electronic copying machine, a plurality of paper feed trays, paper feed cassettes, and the like are housed in a paper feed unit, and paper is selected based on information such as the size of a document and a reduction ratio.
It constitutes a means for feeding paper toward the image forming unit. 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.

Further, in addition to the electronic copying machine using the small size paper as described above, in an electrophotographic copying machine used for creating a drawing or an image forming apparatus such as a plotter, A0 size or A1 size is used. A recording paper is created using a large size paper such as a size. An electronic copying machine will be described as an example of the image forming apparatus for the drawings. For example, as shown in Japanese Patent Application Laid-Open No. 1-187133, a wide roll paper is attached to a paper feeding unit,
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 created by the large-sized electronic copying machine can be discharged as an arbitrary length, but in the 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.
Then, for the long recording paper as described above, it is necessary for the operator to stand by at the recording paper discharge section and perform work such as winding the long recording paper. Therefore, in the conventional electronic copying machine, when a particularly long recording paper is prepared, it is necessary to organize the recording paper so that the recording paper does not scatter at the discharge port of the apparatus. ing.

Using a large-sized original document as described above,
In addition to the case of creating recording paper, in recent large-sized electronic copying machines, an image information output device such as a computer is used.
There is a case in which a mechanism for continuously ejecting a large-sized recording paper is configured according to the image information output from the output device in combination with the electronic copying machine. In an apparatus that connects an output device such as a computer to an electronic copying machine to create a large-sized recording sheet, 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 making recording paper, unless the operator is always standing by the electronic copying machine, the recording paper cannot be sorted and large-sized recording paper is scattered around the electronic copying machine. Occurs.

Therefore, in order to solve the above-mentioned problems, a device for folding a large size recording paper into a standard size is also used. As the sheet folding device, for example, a device configured as shown in JP-A-63-196462 can be used. However, generally, a drawing created using a plotter or the like has originality and is often used for confirmation of a concept check on a recording paper. Therefore, it is not preferable to use the folding device as shown in the above-mentioned conventional example, and there is a problem in post-processing when a large size recording paper is prepared.

Therefore, instead of using the folding device as described above, for example, the actual flat plate 1-149363.
As disclosed in Japanese Unexamined Patent Application Publication No. 2003-242242, it has been proposed to arrange a paper winding mechanism with respect to a discharge tray for discharging recording paper so that the work of checking the recording paper can be performed easily. In the recording paper processing device shown in the conventional example,
By arranging a mechanism for winding the paper at the end of the output tray and holding the long recording paper in a cylindrical shape, it is not necessary for the operator to wind the recording paper during the copying operation. The processing work can be simplified. However, as described above, even when the mechanism for automatically winding a long recording paper is arranged, the recording paper is taken out from the discharge tray every time one recording paper is discharged.
It is required to move to another containment device. Further, the roll-shaped recording paper may easily spread to its original state in a state where it is not sealed, and there is a problem that the subsequent storage becomes troublesome. Furthermore, when continuously producing large-sized recording paper, the operator is required to process a long original and a cylindrical paper each time one recording paper is prepared, which is relatively troublesome. It is necessary to successively perform such operations.

[0008]

SUMMARY OF THE INVENTION The present invention solves the problem of organizing recording sheets in an electronic copying machine for producing large-sized recording sheets as described above, and a post-processing device is attached to the electronic copying machine. To provide a device that automatically seals the recording paper that has been placed as a wrapping paper and that automatically seals the recording paper that does not need to be formed. It is an object of the present invention to provide an apparatus provided with a discharge guide that can guide the recording paper to the discharge tray with any of the front and back surfaces of the recording paper facing upward.

[0009]

SUMMARY OF THE INVENTION According to the present invention, a large-sized roll paper having a wide width is mounted in a paper feed unit, the paper fed from the paper feed unit is cut in accordance with the size, and large-sized recording is performed. In an image forming apparatus that creates paper, a post-processing device is connected to a paper discharge unit of the image forming apparatus, and a paper winding device is arranged in the post-processing device so that the paper created as recording paper has a predetermined diameter. A means to roll it up and discharge it as a wrapping paper,
And a means for directly ejecting the paper through the paper guide path of the paper winding device.

In the paper winding device provided in the post-processing apparatus of the present invention, a guide member for guiding a large-sized sheet to the cylindrical forming section, a drive roller member for feeding the sheet along the guide member, and A sealing mechanism that attaches an adhesive tape or the like to a sheet formed in a cylindrical shape is provided. Further, the guide member for guiding the paper of the present invention in a cylindrical shape is provided with a mechanism for opening a part of the member to discharge the wrapping paper, and discharges the recording paper toward the discharge tray via the paper winding device. The discharge section is provided with a discharge guide arranged so as to be swingable, and means for discharging the recording paper with any surface of the front and back faces upward by the discharge guide. further,
In the present invention, the discharge guide provided at the position for directly discharging the recording paper through the paper winding device is swingably provided at the discharge port through the shaft member so that the discharge guide does not block the discharge path. Then, a state is set in which the recording paper is discharged as it is, and at the position where the discharge guide blocks the discharge path, the discharge-side leading end of the recording paper is guided along the vertical plate of the discharge tray in the descending direction, With the leading edge of the recording paper stopped at the connection between the vertical and bottom plates of the output tray,
A mechanism for reversing and containing the recording paper can be configured.

By configuring the recording paper processing apparatus of the image forming apparatus as described above, in the electronic copying machine equipped with the post-processing apparatus of the present invention, even when long and large size recording papers are continuously produced. Since these recording papers can be automatically ejected as a wrapping paper, post-processing of copying can be easily performed. Further, by disposing a discharge guide with respect to a discharge port through which the recording paper is directly discharged through the paper winding device of the present invention and guiding the recording paper by the discharge guide, any surface of the front and back of the recording paper is turned up. Since it can be accommodated in the discharge tray in this state, the recording paper can be easily handled. Therefore, in the recording paper processing device of the image forming apparatus of the present invention, when discharging the recording paper, in addition to discharging the recording paper as a roll paper, any surface on the front and back of the recording paper is turned up in accordance with the operator's request. Since it can be discharged toward, the post-treatment can be easily performed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A recording paper processing apparatus of an image forming apparatus of the present invention will be described with reference to the illustrated example. The example shown in FIG. 1 shows a configuration of an electronic copying machine 1 of the present invention and a post-processing device 20 provided as an accessory to 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 the writing device 3 uses the digital information output from the output device 15 to output the image information.
Is used to write image information on the photosensitive drum 2. In the electronic copying machine 1, a writing device 3 for writing on the photosensitive drum 2 using a laser beam.
In addition to the developing device 4 and the cleaning device 6, a transfer corotron 5 is arranged at the image transfer portion of the photosensitive drum. In the electronic copying machine of the present invention, 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, and the electrostatic latent image is formed. To supply toner from a developing device to form a toner image, and transfer the toner image 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 heat roller type fixing device to be fixed and discharged as recording paper.

The electronic copying machine 1 can be equipped with a plurality of roll papers 7 and 7a having different sizes and paper qualities in the paper feeding section, and the paper is fed out from the roll papers and the inside of the conveying path 8 is fed. The sheet is conveyed, and the cutter 9 is operated according to the information on the length of the image, so that the recording paper having the required length can be created. Further, the paper feeding unit can accommodate a plurality of papers such as tracing papers having different widths used for drawing drawing, and the operator can specify papers or paper sizes. To be able to.
The post-processing device 20 used in combination with the electronic copying machine 1 has a sheet conveying path connected to a downstream portion of the fixing device 10 of the electronic copying machine via a discharge roller 14. 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 sheet and discharging the recording paper sheet as a wrapping paper toward the discharge tray 45.

Further, in the post-processing apparatus of the present invention, the recording paper formed as a paper roll by using the paper winding device 25 is guided toward the discharge path 40 via the bypass conveying path provided in the paper winding device 25, and Discharge roller device 4 provided in discharge path 40
It is possible to send it out toward the discharge tray 46 via 1. As described above, directly ejecting the recording paper is applied even in the case of a large-sized paper, when the wrapping paper is not designated, when making a copy using a small-sized paper, and the like. Therefore, as shown in FIG. 2, a discharge guide 42 is arranged at the discharge port of the discharge passage 40.
The discharge guide 42 is swingably supported via a support shaft 43, and is connected to a drive mechanism (not shown) via the support shaft 43 so that the discharge guide 42 is swingable.
As shown in FIG. 1, when the discharge guide 42 is stopped at a position in which the discharge guide 42 is swung upward, the recording paper is sent from the discharge path to the discharge tray 46 as it is,
It is stored with the image side facing up.

On the other hand, the discharge guide 42 is shown in FIG.
As shown in the above, when the discharge path is lowered to the position where it is cut off, the leading edge of the recording paper is sent toward the lower corner of the discharge tray, and the recording paper is piled up in the discharge tray in a state of being reversed. You can In the example shown in FIG. 2, the function of forming the wrapping paper of the paper wrapping device 25 provided in the post-processing device will be described in detail later, but in this embodiment, it is performed via a bypass conveyance path formed in the lower part of the paper wrapping device. 4 shows the positional relationship of each member when the recording paper is guided toward the discharge path 40. Then, for those that do not specify the winding of the recording paper to the control device of the post-processing device,
It is possible to directly eject the paper without operating the paper winding device.

In order to meet the above purpose, as shown in FIG. 2, a gate member 35 is arranged with respect to the paper winding device 25, and the gate member 35 is swingable via a support shaft 37. It is provided, and the gate arm 36 is provided at the lower part so as to project. The gate arm 36 is configured as an extremely long arm member, and the gate arm 3
The outer surface of 6 has the same curvature as the lower semicircular guide 27. Then, with the gate member 35 being swung, a space for guiding the paper is set between the outer surface of the gate arm 36 and the inner surface of the lower semicircular guide 27 to form a paper guide path. To

As shown in FIG. 2, with respect to the paper winding device 25 of the present invention, a discharge path 40 and a discharge roller 41 are arranged on the downstream side of the paper guide path. And
When the mode in which the paper is not caught 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, in the paper transport path 21, the recording paper transported by the transport roller device 24 is guided to the discharge path 40 through the space between the gate arm 36 and the lower semicircular guide 27, and the discharge roller 41 causes the post-processing device. So that it is discharged toward the outside of the. In the state shown in FIG. 2, it is also effective to drive the driving roller member arranged in the paper winding device 25 so that the roller members 32 and 33 assist the paper discharging operation.

Further, as described above, the discharge guide 42 provided at the discharge end of the discharge path 40 is turned upward with the support shaft 43, so that the image surface of the recording paper faces upward. In this state, eject the recording paper directly toward the ejection tray. On the other hand, when the discharge guide 42 is swung to the position shown in FIG. 2 and the discharge port is blocked,
The recording paper is guided downward by the discharge guide 42. Then, as shown in FIG.
The recording paper discharged toward 6 first descends according to the path indicated by the reference sign P1, and the leading end of the recording paper is
It hits a corner formed by the vertical plate 47 and the bottom plate 48 of the discharge tray 46. Then, the recording paper is still fed by the roller device to be in a state of being greatly curved as indicated by reference sign P2, and thereafter, the recording paper is accumulated along the bottom plate of the tray as indicated by reference sign P3 due to its own weight. Will be done. Therefore, as described above, by guiding the recording paper by the discharge guide, the discharge tray 4 with the pages aligned with the image surface of the recording paper facing down.
6 can be deposited.

[0019]

[Circulating Paper Forming Mechanism] The paper winding device 25 provided in the post-processing device 20 is provided with a mechanism for winding the recording paper and sealing it as shown in FIG. The post-processing device 20 shown in FIG. 3 performs a paper transport path 21 connected to a discharge path of an electronic copying machine, a paper winding device 25 arranged at an end of the paper transport path, and a sealing operation of a paper wrapper. Labeler 5
It consists of 0 and. Paper transport path 2 shown in FIG.
1, an upper guide plate 22 that can be opened and closed and a lower guide plate 23 that is arranged at a fixed position are attached at a predetermined interval, and a conveyance roller device 24 is provided at a predetermined position of the paper conveyance path. Are arranged. In addition, the paper transport path 2
The transport roller device 24 disposed at No. 1 is configured to be capable of changing the transport speed, and transports the preceding paper at high speed after the trailing edge of the paper passing through the fixing device 10 is detected.
A gap is formed between the front and rear papers so that the work of forming a wrapping paper by the paper winding device and the sealing work using the adhesive tape member can be easily performed.

The paper winding device 25 arranged at the end of the paper conveying path has an upper semi-circular guide 26 arranged at a fixed position and a lower portion which is swingable so as to guide the paper in a curling manner. It is provided in combination with the 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 paper in the curving direction. Of the three drive roller members, the roller members 32 and 33 are provided on the swing arm 30, and the swing arm 30 is swingably provided via a support shaft 31. In addition to the roller member, a lower semi-circular guide 27 is attached to the swing arm 30. By swinging the swing arm 30, the lower half of the paper winding device 25 is opened to drop a paper roll. To be able to

In addition to the two guide members 26 and 27 having a semicircular cross section which constitute the guide means, the paper winding device 2 of the present invention.
The guide part of 5 corresponds to the upper semicircular guide 26,
A gate member 35 supported by a support shaft 37 is provided at the predetermined position. As shown in FIG. 2, the gate member 35 has an arm member 36 formed long on one side,
It is arranged so as to be along the lower semicircular guide 27, and a pushing arm member 38 is provided on the other side. Then, the gate member 35 is held at the position shown in FIG. 3 when the recording paper to be inserted into the paper winding device is formed as a wrapping paper. On the other hand, when the rolled paper is ejected from the paper winding device 25, the rolled paper is swung following the swinging arm 30.
The state shown in FIG. 3 is opened, and when swinging, the pushing arm member 38 acts in the direction of pushing down the upper part of the wrapping paper to assist the operation of discharging the wrapping paper. Further, when ejecting the recording paper without designating the entrainment, the paper guide path is formed by being swung to the position shown in FIG. 2, and the operation of ejecting the paper through the ejection path is performed. To do.

Further, in the apparatus of the present invention, as shown in FIGS.
After arranging 0 and forming the wrapping paper, the label supplied from the labeler is attached so that the wrapping paper can be bound. The label as the adhesive tape member used as the sealing means of the wrapping paper of the present invention may be a commercially available label, and has a length of about half the circumference of the paper winding device 25. Labels with can be used. In the labeler 50, as shown in FIG. 4, a roll-shaped label mount supported by a label holder 51 is guided through a guide member 56, and a peeling bar 53 arranged at the tip of the guide member is used. , Winding shaft 5
I will guide you to 2. Further, the guide member 56 is provided with a guide surface 57 on the supply side and a guide surface 58 for guiding the mount. Then, at a predetermined position of the guide surface 58 on the rewinding side of the mount, a feed roll 59 having a large number of needles is arranged to arrange the label mount on the winding shaft 5.
Make it send to 2.

The labeler 50 peels the label from the label mount when the long mount holding the labels at predetermined intervals is sharply curved by the peeling bar 53.
Label the wrapping paper so that the rear end of the wrapping paper can be sealed. Further, the swing arm 55 is swingably provided via a support shaft 55a, and is made to stand by at a position where the swing arm 55 swings clockwise in the drawing.
Only when the label is attached to the wrapping paper, it is possible to set the state in which the peeling bar 53 at the lower end portion of the guide member 56 is pressed toward the wrapping paper.

[0024]

[Rolling Operation of Recording Paper] In the post-processing apparatus 20 of the present invention constructed as described above, when the recording paper is ejected from the electronic copying machine as shown in FIG. Conveying roller device 24 provided on the sheet conveying path 21
Thus, the paper is transported toward the paper winding device 25. Then, the drive roller member protruding to the inner surface of the cylindrical guide of the paper winding device 25 guides the paper in the winding direction and performs the operation of winding the paper in the cylindrical shape. In the paper winding device, when the rear end of the paper discharged from the fixing device is detected by the sensor S1 at the final stage of the paper winding operation, the conveyance roller device 24 provided in the paper conveyance path 21 is moved. It is driven at a high speed so that it is separated from a subsequent sheet conveyed at a constant speed. Then, a predetermined gap is formed between the trailing edge of the recording paper wound inside the paper winding device and the leading end of the succeeding paper, before the leading end of the succeeding paper enters the paper winding device. A tape member is attached to the rear end of the recording paper prepared as a wrapping paper so that it can be sealed.

As described above, when the winding of the paper is completed in the paper winding device 25, the rear end of the paper formed as a paper roll in the paper winding device 25 is detected by using the detection information of the rear end of the paper. As shown in FIG. 4, the guide member 56 is swung toward the paper winding device, seeing the timing at which the label is attached. Then, in the labeler 50, the swing arm 55 is swung counterclockwise about the shaft 55a, and the peeling bar 53 is brought close to the surface of the paper wrapped while rotating inside the guide means. Together with the winding shaft 52 and the feed roll 59
Are driven to feed the label mount 60 by a predetermined length. When driving the label mount, 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. In addition, 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 arranged at the lower end portion of the swing arm 55, and the end of the paper is attached to the main body of the wrapping paper and held. To do so.

After the wrapping paper Pa is formed in the paper wrapping device 25 as described above, the oscillating arm 30 is oscillated to eject 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. 5, when the swing arm 30 is swung counterclockwise via the support shaft 31, the lower portion of the paper winding device 25 is opened, and thus the paper winding device is accommodated inside the paper winding device. The wrapped paper Pa loses its support and falls naturally. The swing arm 3
Following the swinging motion of 0, the gate member 35 is supported by the support shaft 37.
By swinging in the counterclockwise direction through the push-up arm member 38 provided on the gate member 35, the pushing arm member 38 pushes down the wrapping paper from above, so that the operation of discharging the wrapping paper Pa can be assisted. .

[0027]

By constructing the recording paper processing device of the image forming apparatus as described above, an electronic copying machine equipped with the post-processing device of the present invention continuously produces long and large size recording paper. Even in such a case, such recording paper can be automatically discharged as a paper wrapper, and post-processing of copying can be easily performed. Further, by disposing a discharge guide with respect to a portion where the recording paper is directly discharged through the paper winding device of the present invention and guiding the recording paper by the discharge guide, any surface of the front and back of the recording paper is turned up. Since it can be stored in the discharge tray in this state, the recording paper can be easily handled. Therefore, in the recording paper processing device of the image forming apparatus of the present invention, when discharging the recording paper, in addition to discharging the recording paper as a roll paper, any surface on the front and back of the recording paper is turned up in accordance with the operator's request. Since it can be discharged toward, the post-treatment can be easily performed.

[Brief description of 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 for directly ejecting a sheet.

FIG. 3 is an explanatory diagram showing a configuration of a post-processing device of the present invention.

FIG. 4 is an explanatory diagram of a state in which a label is attached to a recording paper formed as a wrapping paper by a paper wrapping device.

FIG. 5 is an explanatory diagram of an operation of ejecting a wrapping paper from the paper wrapping device.

[Explanation of symbols]

1 electronic copying machine, 3 writing device, 10
Fixing device, 20 post-processing device, 21 paper transport path, 24 transport roller device, 25 paper winding device,
26 upper semi-circular guide, 27 lower semi-circular guide, 30 swing arm, 32-34 drive roller member, 35 gate member, 36 gate arm,
40 discharge paths, 42 discharge guides, 45/46
Output tray, 50 labeler, 51 label holder, 52 take-up shaft, 53 peeling bar,
55 swing arm, 56 guide member, 60
Label mount, 62 labels.

Claims (2)

[Claims] 1. An image forming apparatus that mounts a wide roll of large size paper in a paper feed unit and cuts the paper fed from the paper feed unit according to the size to create a large size recording paper. Connect the post-processing device to the paper ejection section of the image forming device,
A paper winding device is arranged in the post-processing device, and means for rolling the recording paper into a predetermined diameter and discharging the paper as a paper wrapper, and means for directly discharging the paper through a paper guide path of the paper winding device are provided. In the paper winding device, a guide member that guides a large-sized sheet to a cylindrical forming unit, a drive roller member that feeds the sheet along the guide member, and an adhesive to the sheet formed into a cylindrical shape A sealing member for attaching a tape or the like is provided, and a guide member for guiding the paper in a cylindrical shape is provided with a mechanism for opening a part of the member and discharging the wrapping paper. A discharge guide is swingably arranged in the discharge portion for discharging the recording paper toward the discharge tray, and means for discharging any surface of the front and back sides of the recording paper by the discharge guide is provided. Image forming equipment Of the recording sheet processing apparatus. 2. A discharge guide provided at a position where the recording paper is directly discharged through the paper winding device is swingably provided at a discharge port portion through a shaft member, and the discharge guide does not block the discharge path. Then, a state is set in which the recording paper is discharged as it is, and at the position where the discharge guide blocks the discharge path, the discharge-side leading end of the recording paper is guided along the vertical plate of the discharge tray in the descending direction, 2. The recording sheet processing of the image forming apparatus according to claim 1, wherein the recording sheet is reversed and accommodated in a state in which a front end portion of the recording sheet is stopped at a connecting portion between the vertical plate and the bottom plate of the discharge tray. apparatus.