JPH0680296A - Recording paper processing device of image forming device - Google Patents

Abstract

PURPOSE:To carry out the after treatment of a paper sheet easily by providing a paper winding device at the recording paper exhaust part of an image forming device so as to form a long recording paper into a rolled paper. CONSTITUTION:At the recording paper exhaust part of an electronic copying machine 1, an after-treatment device 20 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 20, and the rolled paper is to be sealed by using a label or the like so as to prevent its loosening. The recording paper formed into a rolled paper can be housed in an exhaust tray 45. Furthermore, by providing a mechanism to exhaust directly the recording paper without exercising the paper winding function of the paper winding device 25, the device is made possible to respond to a short recording paper or a paper sheet not designated to a rolled paper.

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, the present invention relates to a recording paper processing device of an image forming apparatus in which a long recording paper is rolled into a cylindrical shape by a paper winding device, a means for sticking and sealing an adhesive tape is provided, and the recording paper formed as a paper roll is discharged.

[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. In addition, the roll-like recording paper may easily spread to its original state when it is not bound, and there is a problem that it is troublesome to store it thereafter. 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. A device for automatically sealing the recording paper formed as a wrapping paper and arranging it so that the paper stored in the discharge tray can maintain the shape of the wrapping paper and facilitate post-processing. It is intended to be provided.

[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. 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 a wrapping paper. A means for arranging a paper winding device in the post-processing device of the present invention, and rolling and discharging a sheet formed as a recording sheet to a predetermined diameter,
A means for directly ejecting the paper through a paper guide path of the paper winding device is provided, and in the paper winding device, a guide member for guiding a large-sized paper to a cylindrical forming portion, and a paper sheet along the guide member are provided. A driving roller member for feeding the
Also, a mechanism for attaching an adhesive tape or the like to a cylindrical sheet to seal the sheet is provided, and a guide member for guiding the sheet in the cylindrical shape opens a part of the member to eject the paper wrapper. A mechanism is provided.

Further, in the recording paper processing apparatus of the image forming apparatus of the present invention, the guide member provided in the paper winding device is constituted by combining a substantially semicircular upper guide member and a lower guide member, and is arranged at a fixed position. The lower guide member is provided so as to be openable and closable with respect to the upper guide member, the gate member is arranged with respect to the guide member, and the recording paper is placed at a position where the gate arm of the gate member is along the lower part of the lower guide member. A gate paper of the gate member is set at a position where the gate arm of the gate member is separated from the upper part of the lower guide member so that the recording paper is directly discharged by performing a function of forming a paper wrapper. The pushing arm provided on the member is configured to perform the action of pushing the paper wrapper from the guide member.

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, in the paper winding device provided in the post-processing device, since the rear end of the paper is detected and the adhesive tape or the like is automatically attached and sealed, the paper roll can be easily opened. The recording paper can be easily stored without causing any trouble. Further, in the paper winding device of the present invention, a mechanism for discharging the recording paper for which it is not necessary to create the paper can be arranged as it is, and therefore, the winding process is performed for the relatively small-sized 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 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,
A developing device supplies toner to the electrostatic latent image 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 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 a 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.

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. 2 performs a sealing operation of the paper transport path 21 connected to the discharge path of the electronic copying machine, the paper winding device 25 arranged at the end of the paper transport path, and the wrapping paper. And a labeler 50. The paper conveyance path 21 shown in FIG. 2 has an upper guide plate 22 that can be opened and closed and a lower guide plate 23 that is arranged at a fixed position and are attached at a predetermined interval. The transport roller device 24 is arranged at a predetermined position. Further, the transport roller device 2 arranged in the paper transport path 21.
Reference numeral 4 denotes a configuration in which the conveyance speed can be changed. After the trailing edge of the sheet passing through the fixing device 10 is detected, the preceding sheet is conveyed at a high speed to form a gap between the front and rear sheets. It is formed so that the work of forming a wrapping paper by the paper wrapping 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 to be rolled. 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 guiding 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. The gate member 35 is shown in FIGS.
As shown in FIG.
Is arranged along the lower semicircular guide 27, and the pushing arm 38 is provided on the other side. The gate member 35 is held at the position shown in FIG. 2 when forming the recording paper to be inserted into the paper winding device as a paper wrapper. On the other hand, when the rolled paper is ejected from the paper winding device 25, the rolled paper is swung following the swing arm 30.
The state shown in FIG. 3 is opened, and when swinging, the pushing arm 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 the recording paper is directly ejected without specifying the entrainment, the recording paper is ejected by swinging to the position shown in FIG. 5 to form the paper guide path. To do so.

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, the roll-shaped label mount supported by the label holder 51 is used as the guide member 5
6 and guide toward the winding shaft 52 via the peeling bar 53 arranged at the tip of the guide member. 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 projected is arranged so that the label mount is fed toward the winding shaft 52. To

The labeler 50 peels the label from the label mount when the long mount holding the labels at predetermined intervals is rapidly curved by the peel 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.

[0020]

[Recording Paper Winding Operation] In the post-processing apparatus 20 of the present invention configured as described above, when the recording paper is ejected from the electronic copying machine, the leading end of the recording paper is fed to the paper conveying path 2
The paper winding device 25 is provided by the transport roller device 24 provided in FIG.
Transport it to. 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. 3, 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. 4, when the swing arm 30 is swung in the counterclockwise direction via the support shaft 31, the lower portion of the paper winding device 25 is opened, so that the paper winding device is opened. The wrapping paper Pa housed inside is
It loses its support and falls naturally. Following the swinging motion of the swinging arm 30, the gate member 35 is swung counterclockwise via the support shaft 37, so that the push-out arm 38 provided on the gate member 35 lifts up the wrapping paper. Since the action of pushing down the paper is added, it is possible to assist the operation of discharging the wrapping paper Pa.

[0023]

[When discharging recording paper directly] In the above-mentioned embodiment of the present invention, the case where the recording paper is formed as a wrapping paper is shown.
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.
5 are arranged. The gate member 35 is swingably provided via a support shaft 37, and a gate arm 36 is provided at a lower portion so as to project. The gate arm 36
Is an extremely long arm member, and the outer surface of the gate arm 36 has the same curvature as that of the lower semicircular guide 27. Then, the gate member 35 is swung to the state shown in FIG. 5 to set a space for guiding the paper between the outer surface of the gate arm 36 and the inner surface of the lower semicircular guide 27, Allow the formation of guideways.

As shown in FIG. 5, 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. 5, 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.

[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 large size recording paper is used. Even in the case of continuous production, since those recording papers can be automatically ejected as a wrapping paper, post-processing of copying can be easily performed. In the paper winding device provided in the post-processing device, the rear end of the paper is detected,
Since the adhesive tape or the like is automatically attached, the wrapping paper can be easily opened, and there is no problem in use, and the recording paper can be easily stored. further,
In the recording paper processing device of the image forming apparatus of the present invention, a mechanism for discharging the recording paper for which it is not necessary to form a wrapping paper can be arranged as it is, so for relatively small-sized paper, It is possible to directly discharge the paper toward the discharge tray without performing the winding process.

[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 showing 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 a recording paper formed as a wrapping paper by a paper wrapping device.

FIG. 4 is an explanatory diagram of an operation of ejecting a wrapping paper from the paper wrapping device.

FIG. 5 is an explanatory diagram for directly ejecting a recording sheet.

[Explanation of Codes] 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,
38 extrusion arm, 40 discharge passage, 45
Discharge tray, 50 labeler, 51 label holder, 52 winding shaft, 53 peeling bar, 55
Swing arm, 56 guide member, 60 label mount, 62 label.

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 ejecting the paper formed as recording paper by rolling it into a predetermined diameter and means for directly ejecting the paper through the paper guide path of the paper winding device. 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 a cylindrical sheet. On the other hand, an image forming method is characterized in that a sealing mechanism for adhering an adhesive tape or the like is provided, and the 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. Equipment recording paper processing equipment. 2. A guide member provided in the paper winding device is configured by combining a substantially semicircular upper guide member and a lower guide member, and a lower guide member is provided with respect to an upper guide member arranged at a fixed position. The gate member is provided so as to be openable and closable, and the gate member of the gate member is arranged so that the gate arm of the gate member extends along the lower portion of the lower guide member. 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, and in conjunction with the operation of opening the lower guide member, an extruding arm provided on the gate member guides the paper wrapper. The recording paper processing apparatus of the image forming apparatus according to claim 1, wherein the recording paper processing apparatus performs an extrusion operation.