JP2003252514A - Delivery stacker, and recording device having delivery stacker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent reduction of printing quality by preventing mixing of long cut paper and short cut paper in a delivery stack for stacking the cut paper. <P>SOLUTION: A delivery stacker 50 is detachably attached to an automatic cutter 2 for cutting machine glazed paper into a predetermined length to be in a mounted state, thereby receiving in the lower part the machine glazed paper that is cut by the automatic cutter 2 and discharged by turning a cutter delivery driving roller 43. The delivery stacker 50 comprises a first paper storing part 50a lying substantially just under the cutter delivery driving roller 43 and a second paper storing part 50b lying on the downstream side of it. Short sized machine glazed paper PRS falls into the first paper storing part 50a and long- sized machine glazed paper PRL falls into the second paper storing part 50b to classify the machine glazed paper. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper discharge stacker that receives a recording material discharged from a cutter device that cuts the recording material to a predetermined length and drops downward. The present invention also relates to a recording apparatus provided with the paper discharge stacker.

[0002]

2. Description of the Related Art There is an ink jet printer (hereinafter referred to as "printer") as one of recording devices. The printer includes a cutter device that automatically cuts roll paper to a predetermined length and a paper discharge roller of the cutter device. Some of them are provided with a paper discharge stacker for receiving the roll paper that is discharged and drops downward.

[0003]

Here, since the roll paper is cut into various lengths, it is necessary to stack the cut roll papers with various lengths on the discharge stacker in a mixed state. become. However, in such a state in which cut roll paper of various lengths is mixed, in particular, when it becomes a state in which roll paper cut into short lengths and roll paper cut into long lengths are alternately laminated, It becomes necessary to sort these by hand later, which is troublesome.

Immediately after dropping on the paper stacker, the ink on the printing surface is not sufficiently dried, and therefore, when a short roll paper falls on a long cut roll paper,
There is a risk that the portion of the short length of roll paper that comes into contact with the sheet will be delayed in drying, which will cause a difference in the color development state after drying, which may deteriorate print quality. In addition, when using a pigment-based ink that is difficult for the ink to penetrate into the printing surface, the ink layer is easily removed if something touches the undried printing surface,
Therefore, if the roll paper cut into short lengths is pulled out from the stacked state, the quality of the printing surface of the roll paper cut into long lengths may be deteriorated.

Therefore, the present invention has been made in view of such a problem, and an object thereof is to prevent a long cut and a short cut from being mixed in a discharge stack for stacking cut papers, thereby printing. It is to prevent quality deterioration.

[0006]

In order to solve the above-mentioned problems, a paper discharge stacker according to claim 1 of the present application is provided with a cutter blade movably provided in a width direction of a recording material, and a downstream of the cutter blade. And a discharge roller that discharges the cut recording material to the downstream side, and a discharge device that is provided below the discharge roller in a cutter device and that receives the recording material that is cut and drops downward. A stacker, which is longer than the first sheet storage section provided on the side closer to the discharge roller and the recording material provided on the side farther from the discharge roller and falling on the first sheet storage section. And a second paper storage portion on which the recording material falls.

According to the first aspect of the present invention, the discharge stacker for receiving the recording material that is cut by the cutter device that cuts the recording material and drops downward is provided on the side close to the discharge roller. And a second recording material provided on the side farther from the discharge roller and having a length longer than that of the recording material falling into the first paper storage portion.
Since it has a sheet storage section of, the recording material cut shorter than a certain length falls into the first sheet storage section,
The recording material cut to a length shorter than a certain length falls into the second paper storage unit.

That is, the recording material cut into a short length falls to a point near the discharge roller, that is, the first paper storage portion, while the leading end of the recording material cut into a long length is stored in the first paper storage portion. Since the recording material passes through the portion, reaches a position earlier than that, and falls, the cut recording material can be sorted into a certain range of length by utilizing such a property. Therefore, it is possible to prevent problems such as the later sorting work becoming complicated and the print quality being deteriorated due to the mixture of long cuts and short cuts.

The first sheet storage section and the second sheet storage section here mean a relative relationship between the two sheet storage sections, and therefore, one sheet stacker has two sheets. The present invention is not limited to the provision of the sheet storage section, and three or more sheet storage sections may be provided so that the sheets can be sorted according to the cut length.

According to a second aspect of the present invention, there is provided a paper discharge stacker, a cutter blade movably provided in a width direction of a recording material, and a recording material cut downstream of the cutter blade. And a discharge roller for discharging the recording material to a cutter device, which is provided below the discharge roller and receives a recording material that is cut and drops downward, and a paper storage unit that receives the recording material. The first sheet storage portion that receives the recording material that falls substantially directly below the discharge roller, and the recording material that is longer than the recording material that falls into the first sheet storage portion. It is characterized in that it is partitioned into a second sheet storage section located on the side farther from the discharge roller with respect to the first sheet storage section.

According to the second aspect of the present invention, the discharge stacker that receives the recording material that is cut by the cutter device that cuts the recording material and drops downward, has the paper storage section that receives the recording material. A first sheet storage unit for receiving a recording material falling directly below the discharge roller;
Second recording medium, which is longer than the recording medium falling in the paper storage section, is located on the side far from the discharge roller.
The recording material cut into a shorter length than a certain length falls into the first paper storage portion, and the recording material cut into a shorter length than a certain length is divided into the second paper storage portion.
Falls into the paper compartment of. Therefore, like the invention described in claim 1 of the present application, it is possible to prevent the trouble that the later sorting work becomes complicated and the print quality deteriorates due to the mixture of the long cut length and the short cut length. It becomes possible to do.

According to a third aspect of the present invention, the paper discharge stacker according to the first or second aspect is characterized in that it is detachably attached to the cutter device. Claim 3 of the present application
According to the described invention, since the paper discharge stacker is configured to be attachable to and detachable from the cutter device, it is possible to save the installation space by removing it from the cutter device as needed.

According to a fourth aspect of the present invention, in the sheet discharge stacker according to any one of the first to third aspects, the first sheet storage portion has a box shape. According to the fourth aspect of the present invention, since the first sheet storage section has a box shape, it is possible to reliably catch the recording material that has dropped.

According to a fifth aspect of the present invention, in the sheet discharge stacker according to any one of the first to fourth aspects, the second sheet storage section is substantially U-shaped when the recording sheet discharge path is viewed from the side. It has a shape of.

According to the fifth aspect of the present invention, the second sheet accommodating portion is substantially U when the sheet discharge path of the recording material is viewed from the side.
Since it has a letter-like shape, when stacking roll paper with curl remaining in a state where the curl is convex downward, it is possible to stack the roll paper in a natural posture without difficulty. it can.

According to a sixth aspect of the present invention, there is provided the paper discharge stacker according to the fifth aspect, wherein the second paper storage section has arm members extending in the paper discharge direction on both side ends of the recording material, and a tip of the arm member. And a cloth material that is provided so as to hang down from the side and the base end side so as to form a substantially U-shape when the paper discharge direction is viewed from the side.

According to the sixth aspect of the present invention, the second sheet accommodating portion has the arm member extending in the sheet ejection direction on both side ends of the recording material, and the front end side and the base end side of the arm portion seat. It is constructed by a cloth material provided so as to have a substantially U-shape when viewed from the side in the paper discharge direction by being hung downward from the above. Since the second sheet storage section can be configured and the cloth material can be easily deformed, it is possible to flexibly follow the shape of the recording material that falls, and stack the recording material in an orderly state. be able to. It can also be folded to save space when not in use.

According to a seventh aspect of the present invention, in the sheet discharge stacker according to any one of the first to fourth aspects, the second sheet storage section is discharged in a state in which the curl is convex upward. The roll paper is provided with an abutting portion with which the leading end portion of the roll paper abuts, and a roll paper receiving surface that is located below the corresponding contact portion and receives the roll paper in a state where the curl is convex downward. However, when viewed from the side of the paper discharge path and rotated about a portion contacting the contact portion as a fulcrum, it is configured to drop onto the roll paper receiving surface with the convex curved surface facing downward. Characterize.

According to the seventh aspect of the present invention, the roll paper discharged in a state in which the curl has a convex shape has its leading end abutting against the abutting portion, and the abutting portion is used as a fulcrum. As it is rotated, it drops onto the roll paper receiving surface with the convex curved surface facing downwards, so the ejected roll paper drops onto the roll paper receiving surface one after another with the convex curved surface facing downwards, and is stacked. This makes it possible to stack roll paper having a curl order in an orderly manner.

When recording is performed on the upper surface of the roll paper with the convex curved surface facing upward, the recording paper is dropped onto the roll paper receiving portion with the recording surface facing downward, and is sequentially stacked. become. Therefore, unlike a normal paper output stacker, that is, a paper output stacker in which the paper to be discharged later is piled up on the recording surface with the recording surface facing up, stacked roll paper The bundles of are recorded in the recording order from the upper side to the lower side with the recording surface facing upward, and thus rearranging is not necessary and the convenience of the user can be improved.

According to an eighth aspect of the present invention, in the seventh aspect, the roll paper receiving surface is deformable following the shape of the convex curved surface. According to the invention of claim 8 of the present application, in claim 7, since the roll paper receiving surface is deformable following the shape of the convex curved surface, paper quality, winding diameter, use environment (temperature, humidity) ) Etc., it is possible to always form an optimum roll paper receiving surface by following the curl of the roll paper whose degree changes.

According to a ninth aspect of the present invention, in the eighth aspect, the roll paper receiving surface is formed of a cloth material. According to the invention of claim 9 of the present application, since the roll paper receiving surface which can be deformed following the shape of the convex curved surface of the roll paper is formed of the cloth material,
The roll paper receiving surface can be configured easily and at low cost, and since it is a cloth material, the roll paper can be stacked in an appropriate state without damaging the recording surface of the roll paper.

According to a tenth aspect of the present invention, in the ninth aspect of the present invention, the cloth material is hung from the front end side and the base end side of the arm member extending in the paper discharge direction on both side end sides of the recording material. Thus, the paper discharge path is provided so as to have a substantially U-shape when viewed from the side, and the portion of the cloth material that is hung from the base end portion of the arm member forms the contact portion, and It is characterized in that the bottom portion in the substantially U-shape is configured to form the roll paper receiving surface.

According to the tenth aspect of the present invention, the cloth material is drooped from the front end side and the base end side of the arm member to form a substantially U-shape when the paper discharge path is viewed from the side. Since the cloth material is disposed in this manner, the cloth material arranging means can have a simple structure and can be constructed at low cost.

A recording apparatus according to claim 11 of the present application is a recording apparatus for recording on a recording material, and is provided with the paper discharge stacker according to any one of claims 1 to 10. . According to the invention of claim 11 of the present application, the recording apparatus for recording on the recording material is any one of claims 1 to 10.
Since the sheet discharging stacker according to the above aspect is provided, it is possible to obtain the same operation and effect as the invention according to any one of the above-described first to tenth aspects.

[0026]

DETAILED DESCRIPTION OF THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. First, the configuration of an inkjet printer (hereinafter abbreviated as “printer”) 1 according to an embodiment of the present invention will be outlined with reference to FIGS. 1 and 2. Here, FIGS. 1A and 1B show the printer 1
FIG. 2 is a schematic side sectional view of the printer 1.

In FIG. 1A, the printer 1 feeds roll paper or cut paper from the rear side of the apparatus (upper left in FIG. 1) and from the paper discharge port 1b on the front side of the apparatus (lower right in FIG. 1). It is configured to eject printed roll paper or cut paper. As shown in FIG. 1B, an auto cutter 2 as a “cutter device” is detachably attachable to the paper outlet 1b by a snap fit means (not shown). It is possible to cut the roll paper at a predetermined position. Then, in the state where the auto cutter 2 is attached, from the paper discharge port 2b of the auto cutter 2,
Printed roll paper or cut paper is ejected. In the following, recording materials that can be printed by the printer 1, such as roll paper and cut sheets, will be collectively referred to as “printing paper”.

The components on the paper transport path of the printer 1 will be described below with reference to FIG. First, the paper feeding device 5 includes a hopper 9 made of a plate-like member provided in an inclined posture.
Is equipped with. The hopper 9 is swingably provided (clockwise and counterclockwise in FIG. 2) about a swing fulcrum 9a provided at the upper portion, and is swingable by a cam mechanism (not shown) so that the lower portion is a paper feed roller. The uppermost one of the cut sheets P stacked on the hopper 9 is fed to the downstream side together with the rotation of the paper feed roller 13 by being pressed and separated from the hopper 13. It Paper feed roller 13
Has a substantially D-shape in a side view, is rotationally driven by a roller drive motor (not shown), and a rubber material 13b is wound around the outer periphery of the cut paper P that is pressed against the paper feed roller 13. Feed without slipping. Further, as shown in the drawing, the flat surface faces the cut sheet P so that a conveyance load (back tension) does not occur when the printing paper is precisely fed (sub-scan feed) by the conveyance roller 19 provided on the downstream side. Is controlled in the same manner. A roll paper holder (not shown) can be attached to and detached from the rear of the paper feeding device 5,
The roll paper is fed from the roll paper holder, and the paper feeding device 5
It is also configured so that it can be fed below the recording head 21 through the lower side of the.

Next, downstream of the paper feed roller 13, a carrying roller 19 for precisely feeding the printing paper is provided. The transport roller 19 is composed of a transport drive roller 15 which is rotationally driven by a roller drive motor (not shown), and a transport driven roller 17 which is in pressure contact with the transport drive roller 15 and is driven to rotate. The transport drive roller 15 is composed of a shaft body that is long in the main scanning direction (front and back direction of paper in FIG. 2), and has a high friction layer (see FIG. 2) in which abrasion-resistant particles (for example, ceramic particles) are fixed to the outer peripheral surface by an adhesive. (Not shown), a reliable precision feeding operation can be executed without causing slip between the back surface of the printing paper (the surface opposite to the printing surface). On the other hand, a plurality of transport driven rollers 17 are arranged in the axial direction of the transport driving roller 15, and a plurality of transport driven rollers 17 are similarly arranged in the axial direction of the transport driving roller 15 on the downstream side (the right side in FIG. 2). ) It is rotatably supported at the end. In this embodiment, one transport driven roller holder 18 has two transport driven rollers 17
Is pivotally supported.

The transport driven roller holder 18 has a rotation fulcrum 1
2 is provided so as to be rotatable in the clockwise direction and the counterclockwise direction in FIG. 2, and in the direction in which the transport driven roller 17 is pressed against the transport drive roller 15 by the biasing means (not shown) (clockwise direction in FIG. 2). It is urged to rotate. Further, the transport driven roller holder 18 can rotate in a direction in which the transport driven roller 17 is separated from the transport driving roller 15 (counterclockwise direction in FIG. 2) by rotation of a cam (not shown). .

Next, of the plurality of transport driven roller holders 18 arranged in the axial direction of the transport drive roller 15, the 0th digit side (the right side when the printer 1 is viewed from the front side: the back side of the plane of FIG. 2).
A slot is provided in the one located at, and a paper detection lever 14 is provided so as to be inserted through the slot and project downward. The paper detection lever 14 can be swung about the upper part as a swing center, and is pushed up when the leading edge of the printing paper fed from the upstream side passes, and the trailing edge of the printing paper (cut sheet) is It is designed to return downward when passing. The swing motion of the paper detection lever 14 can be detected by a paper detector (not shown), and the paper detector 11 sends a detection signal to the control unit (not shown) of the printer 1. Thus, it is possible to detect the passage of the front end of the printing paper and the size (length) of the printing paper (cut sheet).

Next, an ink jet recording head (hereinafter referred to as "recording head") 21 is provided downstream of the conveying roller 19.
A platen 25 is provided so as to face the recording head 21. The recording head 21 is provided below the carriage 23, is supplied with ink from an ink cartridge 24 mounted on the carriage 23, and ejects ink droplets onto the printing surface of the conveyed printing paper. The carriage 23 is guided by a main carriage guide shaft 22a and a sub-carriage guide shaft 22b that are suspended between side frames (not shown) that are provided upright on the left and right sides of the apparatus and that form the base of the printer 1. It is configured to reciprocate in the main scanning direction (front and back direction of the paper surface of FIG. 2) by receiving a driving force of a motor (not shown).

Next, downstream of the recording head 21, a first paper discharge roller 26 and a second paper discharge roller 27 provided downstream of the first paper discharge roller 26, and a paper discharge consisting of two pairs of rollers. A roller is provided. The first paper ejection roller 26 and the second paper ejection roller 27 are roller drive motors (not shown).
The first paper ejection drive roller 28 and the second paper ejection drive roller 29 which are rotationally driven by the first paper ejection driven roller 30 and the first paper ejection driven roller 30 which are rotationally driven by elastically contacting the rotationally driven rollers. It is composed of two paper discharge driven rollers 31, and the print paper is discharged to the downstream side by pinching the print paper by these two pairs of rollers and rotationally driving the respective drive rollers. Here, the first paper ejection driven roller 30 is a toothed roller having teeth on the outer periphery that makes point contact with the printing surface, and the second paper ejection driven roller 31 makes surface contact with the printing surface and the outer peripheral surface. It is composed of a rubber roller that has been subjected to an ink repellent treatment. Further, the first paper ejection driven roller 30 and the second paper ejection driven roller 31
And are both rotatably supported by the lower portion of the discharge frame 33, which is a plate-like member that is long in the width direction of the printing paper.

The use of two pairs of rollers as the paper discharge rollers, that is, the first paper discharge roller 26 and the second paper discharge roller 27, is as follows. That is, the printing paper is precisely fed by the carrying roller 19 at the time of printing. However, when the printing paper (cut sheet) is printed without a margin, if the trailing end of the printing paper comes off the carrying roller 19, the printing paper is carried. It is necessary to perform the precision feeding operation of the printing paper by the roller provided on the downstream side of the roller 19. However, in the roller pair provided downstream of the recording head 21, in order to prevent the transfer of ink droplets and the problem of white spots, it is not possible to strongly nip the printing paper wet with the ink droplets, and high paper feeding I can't get the accuracy. Therefore, by providing two pairs of rollers as in the present embodiment, it is possible to increase the carrying force of the printing paper and to obtain a high paper feeding accuracy even after the trailing edge of the printing paper has come off the carrying roller 19. I am configuring.

Next, downstream of the second paper discharge roller 27, the automatic cutter 2 for cutting the printing paper into a predetermined length is detachably attached to the printer 1 as described with reference to FIG. The auto cutter 2 includes a cutter paper guide 40 that guides the print paper fed by the second paper discharge roller 27 into the cutter device, and the print paper that has entered the cutter device has a shear plate 41 that is long in the paper width direction. And reaches the cutter discharge driving roller 43 and the cutter discharge driven roller 44. Cutter discharge driven roller 44
Is provided so as to elastically contact the cutter discharge drive roller 43 by the biasing means, and the printing paper is nipped by the pair of rollers and the cutter discharge drive roller 43 is driven to rotate. Auto Cutter 2
Is discharged to the downstream.

On the other hand, a rotary blade 45 is provided between the cutter paper guide 40 and the cutter discharge drive roller 43. The rotary blade 45 is attached to the cutter carriage 42.
Is rotatably supported by being attached via a rotary shaft (not shown) parallel to the paper conveyance direction,
In addition, the outer peripheral portion of the disc surface is provided so as to be in pressure contact with the downstream end portion of the shear plate 41. Further, below the shear plate 41, the pinching member 49 is provided with the shear plate 41.
The pressure contact state in which the printing paper is nipped by being pressed against the lower surface thereof and the separated state in which the printing paper is allowed to be conveyed apart from the lower surface of the shear plate 41 are displaceable. The cutter carriage 42 is provided so as to be capable of reciprocating in the paper width direction by a driving unit (not shown), and by being moved in the paper width direction, the cutter carriage 42 is clamped and held between the upstream side and the downstream side of the rotary blade 45. The printing paper in the state is sheared (cut) by the rotary blade 45 and the shear plate 41.

The above is the configuration of the printer 1. Next, referring to FIGS. 3 to 6, the discharge stacker 5 according to the present invention will be described.
0 will be described in detail. Here, FIG. 3 shows the auto cutter 2.
FIG. 4 is an external perspective view showing a state in which the sheet discharge stacker 50 is attached to the printer (the printer 1 main body is not shown), and FIG. 4 is an external perspective view showing a state in which the external cover is removed from the auto cutter 2 in FIG. 5 and 6 are side sectional views of the paper discharge stacker 50. In the following description, the right side of FIGS. 4 and 5 is referred to as the downstream side (downstream side of the sheet discharge path),
The same left direction is referred to as the upstream side (upstream side of the paper discharge path).

As shown in FIGS. 3 and 4, the discharge stacker 5
0 is composed of a stacker base portion 53, a support member 52, and a cloth material 51. The stacker base portion 53 is a box-shaped main body portion 53c that is long in the paper width direction (front-back direction of the paper surface of FIG. 5) and has an opening at the top, and the stacker base portion 53 is discharged from both sides of the main body portion 53c (the left-right direction of FIG. 5). ) Are formed integrally with the arm portions 53a and 53b extending in the direction of).

The support member 52 has arms 52a and 52b that extend further downstream from the tips of the arms 53a and 53b, and extends in a direction orthogonal to the arms 52a and 52b.
A bar 52d connecting the ends of 2a and 52b, and the bar 5
By forming integrally with the support portion 52c (see FIG. 5) extending in parallel with the bar 52d, which is arranged with a slight gap upstream from 2d, a substantially U-shaped shape in a plan view can be obtained. It is configured to form an eggplant. And arm 5
2a and 52b are respectively connected to the arm portions 53a and 53b by snap means (not shown), so that the support member 52 is connected to the stacker base portion 53 and has a frame shape in a plan view.

The cloth material 51 has a rectangular shape in a plan view, and is formed into a bag shape by folding back one end (downstream side) in the longitudinal direction as shown in FIG. 5, and supports the bag-shaped portion. The cloth material 51 is supported on the downstream side of the support member 52 by inserting the support portion 52c of the member 52, while the other longitudinal end (upstream side) of the main body portion 53c of the stacker base 53 is provided. On the downstream side, by being fixed to the lower end portion of a support portion 53d that is a plate-like member that is long in the paper width direction and hangs downward, it is supported on the upstream side of the arm portions 53a and 53b.

That is, when the support member 52 is connected to the stacker base portion 53, the arm portion 53a and the arm portion 52a.
And the arm portion 53b and the arm portion 52b are respectively the cloth material 5
The cloth member 51 hangs downward at the base end side and the tip end side of the arm member so as to form a substantially U-shape when the paper discharge path is viewed from the side. It is provided like an eggplant.

The sheet discharge stacker 5 thus constructed
0 can be detachably attached to the auto cutter 2 by a snap fit means (not shown) provided on the stacker base portion 53 and the auto cutter 2, and can be removed from the auto cutter 2 when not in use to save the installation space. You can do it.

On the other hand, when the automatic cutter 2 is mounted, as shown in FIGS. 4 and 5, the main body portion 53c of the stacker base portion 53 is located substantially directly below the cutter discharge driving roller 43, as shown in FIGS. In addition, the upstream side portion of the U-shape formed by the cloth material 51 is located slightly downstream of the cutter discharge drive roller 53.

The operation and effect of the paper discharge stacker 50 configured as described above and provided on the automatic cutter 2 as described above will be described below with reference to FIG. Printing paper cut by the auto cutter 2,
In particular, the curl of the remaining roll paper (hereinafter referred to as "roll paper P _R"
In the printer 1 according to the present embodiment,
The recording head 21 (see FIG. 2) is oriented so that the curl becomes convex upward.
(Refer to FIG. 3) and then to the auto cutter 2 as it is.

In the automatic cutter 2, the downstream side is nipped by the cutter paper ejection drive roller 43 and the cutter paper ejection driven roller 44, and the rotary blade 45 is moved in the paper width direction with the cutter paper ejection drive roller 43 stopped. by moving the roll paper P _R is cut. When the subsequent cutter discharge driving roller 43 is driven to rotate, the roll paper P _R that is cut falls downward.

Here, as shown in FIG. 6, the roll paper P _{RS having} a short cut length falls almost directly below after the trailing edge of the paper is disengaged from the cutter discharge driving roller 43 and the cutter discharge driven roller 44. Then, the sheet enters the upstream storage section 50a partitioned by the stacker main body section 53c.

On the other hand, the leading end of the roll paper _{PRL having} a long cut length advances to the downstream side in accordance with the discharging operation by the cutter discharging drive roller 43, and eventually the leading end hangs downward on the upstream side of the cloth material 51 (reference numeral 51a). The part indicated by: will be contacted with "contact part 51a" hereinafter. When the trailing edge of the sheet is separated from the cutter discharge driving roller 43 and the cutter discharge driven roller 44, the sheet enters the downstream storage section 50b partitioned by the cloth material 51 as it is.

[0048] In this way, the roll paper _{P R} that has been cut,
Paper cut shorter than a certain length (roll paper P
_RS ) enters the first paper storage unit 50a, and the one cut to a length longer than a certain length (roll paper _PRL ) enters the second paper storage unit 50b, so that it is shorter than a certain length. It can be sorted into long ones.

That is, sheets of various lengths are all output sheets.
Cut into short lengths especially when mixed in the rack 50.
Rolled paper P_RSAnd roll paper P cut into long lengths
_RLWhen it becomes a state that and are alternately stacked, the user
It becomes necessary to manually sort these items later, which makes the work complicated.
It becomes a mess. Immediately after dropping the paper onto the stacker 50,
Paper P_RThe ink on the printed surface of the ink is not dry enough
Therefore, the roll paper P cut into a long length_RLShort on top
Roll paper P_RSRoll falls, roll paper P_RLsmell
Short roll paper P_RSIs delayed in the area where
This causes a difference in the coloring state after drying, and roll paper
P_RLPrint quality may deteriorate. In addition, printing
When using a pigment-based ink that is hard to penetrate into the surface
If there is any contact with the undried printing surface, the ink
The layers are easily removed, so that the short roll
Paper P_RSThe long roll
Paper P _RLThere is also a possibility that the quality of the printed surface of the may deteriorate.

However, as described above, the discharge stacker 50 drops the first stacker 5 which is shorter than a certain length.
0a and a second sheet storage unit 50b into which a sheet longer than a certain length falls. In other words, the paper storage unit of the paper discharge stacker 50 is divided into a first paper storage unit 50a in which one shorter than a certain length falls and a second paper storage unit 50b in which one shorter than a certain length falls. Has been done. Therefore, short cuts and long cuts do not coexist, and it is possible to prevent problems such as complicated sorting work and deterioration of print quality. Particularly, when the roll paper P _RS in FIG. 6 is unnecessary cutting waste, the roll paper P _RL as a printed matter,
By where the roll paper P _RS as the cut waste is sorted, so that further improved user convenience.

The paper discharge stacker 50 according to the present embodiment.
Includes a first sheet storage section 50a and a second sheet storage section 50
Although it has two paper storage portions b and b, it is more detailed by forming three or more paper storage portions due to the difference in the drop position of the cut roll paper P _R due to the difference in the cut length. It can also be configured to sort.

Further, in the present embodiment, the paper path length (distance a in FIG. 5) from the rotary blade 45 to the cutter discharge drive roller 43 is 13 to 14 mm, and the cutter discharge drive roller 43 is downstream from the main body 53c. The horizontal distance to reach the side edge (distance b in FIG. 5) is 16 to 17 mm, and the height difference (height c in FIG. 5) between the cutter discharge drive roller 43 and the edge of the main body 53c is 33 to 34 mm. ing.

By the way, the paper discharge stacker 50 according to this embodiment also has the following operational effects. As mentioned above,
The leading end of the roll paper P _RL that drops into the second paper storage portion 50b gradually advances downward while being in contact with the contact portion 51a (state indicated by reference numeral P _RL '). Then, when the trailing edge of the roll paper _{P RL} deviates from the cutter discharge driving roller 43 and the cutter discharge driven roller 44, the roll paper _{P RL,} the code P
_As shown by the reference symbol P _RL ″ ″ from _RL ″, the posture is reversed and the printing surface is faced down (in a curved state so as to be convex downward), and the U-shaped shape formed by the cloth material 51 is formed. It falls on the roll paper receiving surface 51b forming the bottom surface. And also the same as the roll paper P _RL which fall next or subsequent.

In other words, the paper discharge stacker 50 rotates (reverses) the roll paper P _RL to be discharged by using the tip end portion that abuts the abutment portion 51a as a fulcrum, so that the upward convex curved surface is lowered. The roll paper P _RL having a curl tendency can be stacked in an orderly and regular manner, and the ejected roll paper P _RL can be discharged from the other roll paper P _RL. It is possible to prevent problems such as interference and damage to the printing surface. Further, since the printing surface is directed downward, it is dropped onto the roll paper receiving surface 51b, and is sequentially stacked. Therefore, in general, the printing surfaces are stacked in order from bottom to top. Unlike the paper discharge stacker, the printing order is from the upper side to the lower side with the printing surface facing upward, and thus the convenience for the user can be improved.

Further, in the present embodiment, the roll paper receiving surface 51b is formed of the soft deformable cloth material 51. Therefore, the roll paper receiving surface 51b is
It becomes possible to deform following the shape of the convex curved surface of _RL , paper quality,
It is possible to always form an optimum roll paper receiving surface by following the curl tendency of the roll paper P _R , the degree of which changes depending on the winding diameter, the use environment (temperature, humidity) and the like. Further, by using a cloth material, the friction coefficient between the abutting portion 51a and the leading end of the roll paper P _RL becomes high, which _{facilitates the} rotation of the roll paper P _RL .

[0056]

As described above, according to the present invention, the discharge stacker for receiving the recording material that is cut by the cutter device that cuts the recording material and drops downward is provided on the upstream side. And a second paper storage unit provided on the downstream side of the first paper storage unit, in which a recording material longer than the recording material falling in the first paper storage unit falls. Since the recording material to be cut shorter than a certain length falls into the first paper storage portion, the recording material to be cut shorter than a certain length is connected to the second paper storage portion. To fall. That is, the short-cut recording material drops to a point near the discharge roller, that is, the first sheet storage section, but the long-cut recording material tip passes through the first sheet storage section. Then, since it reaches the downstream side, the cut recording material can be sorted into a certain range of length by utilizing such a property. Therefore, it is possible to prevent problems such as the later sorting work becoming complicated and the print quality being deteriorated due to the mixture of long cuts and short cuts.

[Brief description of drawings]

FIG. 1 is an external perspective view of an inkjet printer according to the present invention.

FIG. 2 is a side sectional view of the inkjet printer according to the present invention.

FIG. 3 is an external perspective view showing a state in which a paper discharge stacker is attached to an auto cutter that constitutes the inkjet printer according to the present invention.

FIG. 4 is a perspective view showing a state where the outer cover of the auto cutter in FIG. 3 is removed.

FIG. 5 is a side sectional view of a paper discharge stacker according to the present invention.

FIG. 6 is a side sectional view of a paper discharge stacker according to the present invention.

[Explanation of symbols]

1 inkjet printer 1b Paper outlet 2 Auto cutter 19 Conveyor roller 21 inkjet recording head 26 First Paper Ejecting Roller 27 Second ejection roller 50 output stacker 50a First paper storage unit 50b Second paper storage unit 51 cloth material 52 Support member 53 Stacker base

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 2C058 AB17 AC07 AE02 AE04 AF25                       AF51 AF61 LA03 LA08 LA24                       LB10 LB17 LB35 LC11                 3F054 AA01 AC05 BA13 BF03 BF07                       BF08 BF23

Claims (11)

[Claims] 1. A cutter blade provided so as to be movable in a width direction of a recording material, and a discharge roller provided on a downstream side of the cutter blade and discharging a cut recording material to a downstream side. A paper discharge stacker provided below the discharge roller in the cutter device for receiving a recording material that is cut and falls downward, the first paper storage section provided on a side near the discharge roller; A second paper storage portion provided on a side far from the discharge roller and on which a recording material longer than the recording material falling on the first paper storage portion falls; Stacker. 2. A cutter blade provided so as to be movable in the width direction of the recording material, and a discharge roller which is provided on the downstream side of the cutter blade and discharges the cut recording material to the downstream side. In the cutter device, a paper discharge stacker that is provided below the discharge roller and receives the recording material that is cut and drops downward, and a paper storage unit that receives the recording material is located directly below the discharge roller. A first sheet storage unit that receives the recording material that drops, and a recording medium that is longer than the recording material that drops into the first sheet storage unit that falls relative to the first sheet storage unit A sheet stacker, which is partitioned into a second sheet storage section located on the side far from the sheet discharge roller. 3. The paper ejection stacker according to claim 1, wherein the paper ejection stacker is detachably attached to the cutter device. 4. The paper discharge stacker according to claim 1, wherein the first paper storage unit has a box shape. 5. The apparatus according to claim 1, wherein the second sheet storage section has a substantially U-shape when the recording sheet discharge path is viewed from the side. Characteristic paper stacker. 6. The arm member according to claim 5, wherein the second paper storage portion extends in the paper discharge direction at both end sides of the recording material, and is hung downward from the front end side and the base end side of the arm member. And a cloth material provided so as to form a substantially U-shape when viewed in the sheet discharge direction. 7. The paper according to claim 1, wherein the second paper storage unit comes into contact with the leading end of the roll paper discharged in a state in which the curl is convex upward. A contact portion, and a roll paper receiving surface that is located below the contact portion and receives the roll paper in a state where the curl is convex downward. The sheet discharge stacker is configured so as to drop on the roll paper receiving surface with the convex curved surface facing downward by rotating around a portion contacting the contact portion as a fulcrum. 8. The discharge stacker according to claim 7, wherein the roll paper receiving surface is deformable following the shape of the convex curved surface. 9. The discharged paper stacker according to claim 8, wherein the roll paper receiving surface is formed of a cloth material. 10. The paper discharge path according to claim 9, wherein the cloth material is hung from both the end sides of the recording material from the front end side and the base end side of an arm member extending in the paper discharge direction. Is provided so as to form a substantially U-shaped shape, a portion of the cloth material that is hung from the base end portion of the arm member forms the abutting portion, and a bottom portion of the substantially U-shaped shape is formed. A paper discharge stacker configured to form the roll paper receiving surface. 11. A recording apparatus comprising a recording unit for recording on a recording material, comprising the paper discharge stacker according to claim 1. Description: