JP2003321076A - Paper package - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper package in which papers can stably be delivered one by one by making swelling characteristics to moisture of the papers and the paper package same, and thereby making a frictional force between the side end edges of the papers and the side inner wall face of a box-like body approximately constant. <P>SOLUTION: The box-like body 8 constituting the paper package 9 is formed of a paper material. Taking it into consideration that, in relation to directions of orientation of paper fibers in thermal copying papers 7 and in a top wall 8h, a lid 8c and a tongue 8e of a main body 8d of the box-like body 8, it is possible to hardly receive the influence of humidity, to decrease degrees of swelling and to make the swelling characteristics same, the direction of orientation (the direction of arrow marks B) of the paper fibers in the thermal copying papers 7, and the direction of orientation (the direction of arrow marks C) of the paper fibers in the top wall 8h, the lid 8c and the tongue 8e, are made in the approximately same direction. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper package having a box-like body for accommodating sheets in a stacked state and formed from a paper material similar to the paper, and particularly to swelling of the paper and the paper package with respect to humidity. By making the characteristics equal,
The present invention relates to a paper package capable of stably sending out the paper one by one while keeping the frictional force between both side edges of the paper and the inner surface of the side wall of the box-shaped body substantially constant.

[0002]

2. Description of the Related Art Heretofore, various types of so-called sheet cassettes, which are formed in a box shape for accommodating sheets in a stacked state, have been known. Such a paper cassette is used by being set in a printer or the like while accommodating sheets in a stacked state, and the paper cassette is transferred to the printing mechanism one by one via a paper feeding mechanism arranged in the printer or the like. It is configured to be sent out.

The paper cassette has a box-shaped body for accommodating sheets in a stacked state, and the box-shaped body is generally made of a material such as metal or plastic. Here, metals and plastics are hardly affected by humidity, and their swelling characteristics are negligible. On the other hand, the paper stored in the box is
Compared with metals and plastics, there are some that are greatly affected by humidity and their swelling properties cannot be ignored. Although there are papers used in printers and the like whose paper fibers are randomly oriented, the paper fibers in the paper are generally arranged in one direction.
In the paper in which the paper fibers are arranged in one direction in this way, the direction in which the paper fibers are arranged (the direction of the paper fibers) is not easily affected by humidity and the degree of swelling is small, but The direction orthogonal to is likely to be affected by humidity and the degree of swelling is large.

In the paper cassette in which the box-like body is made of metal or plastic, the swelling characteristic of the box-like body with respect to humidity can be neglected. Therefore, the humidity range assumed in consideration of the environment in which the printer or the like is used. It is only necessary to consider the swelling characteristics of the paper in, and therefore the frictional force generated between both side edges of the paper and the inner surface of the side wall of the box-like body can be set relatively easily. It is possible to feed out relatively stably via a paper feed mechanism such as a printer.

[0005]

At the present time when simple packaging is recommended, sheets are stacked in a sheet package formed of paper materials instead of a sheet cassette formed of metal or plastic. Then
A form in which such a paper package is directly set in a printer or the like and used is being proposed.

Since the paper package is made of a paper material like the paper stored in the paper package, the paper package is greatly affected by humidity. Therefore, the degree of swelling of the paper and the paper caused by the effect of the humidity are not satisfied. Various problems occur when a paper package is not designed by sufficiently grasping both the degree of swelling of the package.

For example, when the degree of swelling of the sheet is larger than the degree of swelling of the sheet package, both side edges of the sheet come into strong contact with the inner surface of the side wall of the box-shaped body in the sheet package. The force becomes unnecessarily large, and as a result, there is a problem in that the paper is not fed out at the time of paper feeding by a paper feeding mechanism such as a printer and idling occurs. Further, when the degree of swelling of the paper is smaller than the degree of swelling of the paper package, an excessive gap is generated between both side edges of the paper and the inner surface of the side wall of the box-shaped body in the paper package. There is a problem in that when the paper is fed by a paper feeding mechanism such as a printer, the paper is fed in a state where the papers are overlapped with each other.

The present invention has been made to solve the above-mentioned problems in the prior art. By making the swelling characteristics of the paper and the paper package equal to humidity, both side edges of the paper and the inner surface of the side wall of the box-shaped body are made. An object of the present invention is to provide a paper package capable of stably sending out the paper one by one while keeping the frictional force between the paper and the paper substantially constant.

[0009]

In order to achieve the above object, a paper package according to a first aspect of the present invention has a box-shaped body for accommodating sheets in a stacked state, and is a paper package formed from a paper material. The direction of the paper fibers forming the paper and the direction of the paper fibers forming the box-shaped body of the paper package are substantially the same.

In the paper package according to the first aspect of the present invention, the direction of the paper fibers forming the paper and the direction of the paper fibers forming the box-shaped body of the paper package are substantially the same. Therefore, both the paper and the paper package have humidity. It becomes possible to reduce the degree of swelling and to make the swelling characteristics of both of them equal. As a result, the frictional force between the both side edges of the sheet and the inner surface of the side wall of the box-shaped body can be made substantially constant, and the sheets can be stably delivered one by one from the box-shaped body.

The paper package according to claim 2 is
The paper package according to claim 1, wherein a frictional force generated between the paper sheets is set to be smaller than a frictional force generated between the paper sheets and an upper wall surface or a lower wall surface of the box-shaped body. Is characterized by. In the paper package according to claim 2, the frictional force generated between the sheets of paper stored in a stacked state in the box-shaped body causes friction between the paper and the upper wall surface or the lower wall surface of the box-shaped body. Since it is set to be smaller than the force, it is possible to sequentially feed the stacked sheets one by one, and even when the number of stacked sheets is small, it is possible to properly feed the last sheet. Becomes

Further, the paper package according to claim 3 is
The paper package according to claim 1 or 2, wherein the paper package is used in a printer having a paper transport mechanism, and the direction of the paper fibers of the paper is substantially the same as the paper transport direction of the paper transport mechanism. It is characterized by being. In the paper package according to claim 3, since the paper fibers of the paper stored in the box-shaped body are oriented substantially in the same direction as the paper carrying direction of the paper carrying mechanism of the printer, the tension applied to the paper by the paper carrying mechanism. The direction of the paper and the direction of the paper fibers are substantially the same, which prevents curling of the paper.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a sheet package according to the present invention will be described with reference to FIG.
And, it will be described in detail with reference to FIG. FIG. 1 is a perspective view of a sheet package, and FIG. 2 is a perspective view schematically showing a state in which sheets are set in the sheet package.

1 and 2, the paper package 9
For example, a plurality of cut sheet-shaped thermal papers 7 having a small size of about A6 to A7 are stacked and housed inside a box-shaped body 8 formed of paper materials. As shown in FIG. 1, the paper package 9 is configured so that it can be set together with the box-shaped body 8 in the printer 1 described below in a state where a part of the thermal paper 7 is exposed from the box-shaped body 8.

As shown in FIG. 2, the box-shaped body 8 is provided so as to extend from a box-shaped main body 8d having an open side into which the thermal paper 7 is inserted and a lower surface on the open side of the main body 8d. And a lid portion 8c. The thermal paper 7 is inserted in the direction of arrow A in FIG. 2 from the open side of the main body 8d in a state where a plurality of the thermal papers 7 are stacked with the printing surface thereof facing downward.

When the paper package 9 is not used, the lid portion 8c covers the thermal paper 7 and is in a closed state. However, when the lid 8c is set in the printer 1, the lid portion 8c is opened and folded back downward, as shown in FIG. Thermal paper 7 as shown in
It is possible to expose a part of.

The upper wall portion 8h of the main body 8d (see FIGS. 7 and 8)
The tongue portion 8e that is integrally extended from the upper surface of the thermal paper 7 supports the exposed thermal paper 7 and will be described later when the paper package 9 of FIG. 1 is set in the printer 1. It is interposed between the pressing plate 18 and the thermal paper 7, so that an appropriate frictional force is generated between the thermal paper 7 and the thermal paper 7 so that the thermal paper 7 can be smoothly separated one by one. It is configured.

Side walls 8g are integrally provided on both sides of the box-shaped main body 8d. When the thermal paper 7 is stored in the main body 8d in a stacked state, the thermal paper 7 The side edges and the inner surface of each side wall portion 8g are in contact with each other with a substantially constant frictional force.

One corner of the main body 8d opposite to the open side is
Cut at an angle of 45 ° to form a notch 8a, and
An inclined wall 8f is provided at the position of the cutout 8a. On the other hand, the thermal paper 7 is formed with a similar notch 7a at a position corresponding to the slanted wall 8f when the thermal paper 7 is inserted into the main body 8d of the box-shaped body 8 in the correct orientation.

Therefore, when the thermal paper 7 is inserted into the main body 8d in the correct orientation shown in FIG. 2, the slanted wall 8 is located in the cutout 7a of the thermal paper 7. At the same time, the notch 7a overlaps the notch 8a of the main body 8d, and as a result, the notch 9a (see FIG. 1) of the entire sheet package 9 is formed.

On the other hand, when the thermal paper 7 is inserted into the main body 8d of the box-shaped body 8 in an orientation other than the orientation shown in FIG. 2, the corners of the thermal paper 7 where the notches 7a are not formed are slanted. Since it interferes with the wall 8f, it cannot be set to the back of the box-shaped body 8, and as a result, the entire sheet package 9 cannot be set in the sheet storage portion 6 of the printer 1 which will be described later. This configuration ensures that the thermal paper 7 is properly set in the printer 1.

The heat-sensitive paper 7 has a print surface formed on one side thereof, which is printed by being heat-sensitive. The heat-sensitive paper 7 is stacked with the print surface facing down and set in the printer 1 together with the box-shaped body 8. To be done.

As the heat-sensitive paper 7, various types such as a heat-sensitive color developing type having a color-developing layer that is colored by heating, a heat-sensitive perforating type in which a perforation layer perforated by heating is laminated on a base material layer, and the like are used. can do. It may also be a heat-sensitive label.

The relationship between the arrangement direction of the paper fibers forming the thermal paper 7 and the arrangement direction of the paper fibers forming the box-shaped body 8 made of paper material will be described with reference to FIG. Thermal paper 7
Is a paper material in which the paper fibers are arranged in one direction, and the arrangement direction of the paper fibers is the direction of arrow B in FIG. 2 (the longitudinal direction of the thermal paper 7 having a rectangular shape).

A paper material in which the paper fibers are arranged in one direction is used for at least the upper wall portion 8h, the lid portion 8c, and the tongue portion 8e constituting the main body 8d of the box-shaped body 8. ,
The arrangement direction of the paper fibers is an arrow C (longitudinal direction of the main body 8d having a rectangular shape) in FIG.

In the state where the thermal paper 7 is inserted from the open side into the main body 8d of the box-shaped body 8 and stored,
An upper wall portion 8h, a lid portion 8c, and a tongue portion 8e that constitute the arrangement direction (arrow B direction) of the paper fibers in the thermal paper 7 and the main body 8d.
The arrangement direction of the paper fibers (direction of arrow C) is substantially the same.

As described above, in the paper package 9 according to this embodiment, the box-shaped body 8 is formed of a paper material, and the thermal paper 7 and the upper wall portion 8 of the body 8d of the box-shaped body 8 are formed.
In view of the fact that the h, lid portion 8c, and tongue portion 8e are not easily affected by humidity in the arrangement direction of the paper fibers and the degree of swelling can be reduced to have the same book-keeping characteristics, the paper for the thermal paper 7 is considered. The fiber array direction (arrow B direction) and the upper wall portion 8h,
Since the arrangement direction (arrow C direction) of the paper fibers of the lid portion 8c and the tongue portion 8e is substantially the same, the thermal paper 7 and the main body 8d are arranged.
It becomes possible to make both of them less susceptible to the influence of humidity and to reduce the degree of swelling, and to make the swelling characteristics of both the same. Thereby, the frictional force between both side edges of the thermal paper 7 and the inner surface of the side wall portion 8g of the main body 8d can be made substantially constant, and the thermal papers 7 can be stably delivered one by one from the paper package 9.

Further, in the thermal paper 7 inserted in the main body 8d and stored in a laminated state, the frictional force generated between the thermal paper 7 and the thermal paper 7 is caused by the tongue portion 8 of the thermal paper 7 and the main body 8d.
e, it is set to be smaller than the frictional force generated between the inner surface (lower surface) of the upper wall portion 8h. With this configuration, the thermal papers 7 in a laminated state can be sequentially fed out one by one from the main body 8d, and even when the number of laminated thermal papers 7 is reduced, the last one is properly processed. Can be sent to.

The arrangement direction of the paper fibers in the thermal paper 7 (the direction of arrow B) is substantially the same as the paper conveyance direction sent out via the pickup roller 12 and the like in the printer 1 described later.

Next, a schematic structure of the printer 1 in which the above-mentioned paper package 9 is used will be described with reference to FIGS. 3 to 7. 3 is a perspective view of the printer, FIG. 4 is a side sectional view of the printer, FIG. 5 is a perspective view showing a state where sheets are set in the sheet storage section, and FIG. 6 is a side sectional view showing a state where sheets are set in the sheet storage section. 7 and 7 are enlarged cross-sectional views showing details of the sheet separating unit and the printing mechanism.

As shown in FIG. 3, the printer 1 has a rectangular shape (about A6 to A7 size) in plan view.
In addition, it has a compact structure with a thickness of about 2 cm or less. Main body case 2 of printer 1
Is formed by covering the lower surface of the frame 3 with the lower cover 4 and a part of the upper surface with the upper cover 5.

As shown in FIG. 4, a sheet accommodating portion (sheet feeding portion) 6 is formed in the remaining portion of the upper surface of the frame body 3 excluding the portion covered with the upper cover 5. The above-described paper package 9 can be accommodated in the paper accommodation unit 6 as shown in FIG.

The upper part of the sheet storage section 6 is covered with a lid 10, and the lid 10 is rotatable as shown in FIG. A lock mechanism (not shown) is provided on the main body case 2 side. As described above, when the paper package 9 is set in the paper storage unit 6, as shown in FIG.
Can be closed and locked.

A pickup roller 12 as a sheet separating section 11, a separating block 13 and the like are arranged at one end of the sheet accommodating section 6. A thermal head 15, a platen roller 16, and a paper guide 17 as a printing mechanism unit 14 described below are arranged below and below the upper cover 5.

In addition, at one corner on the other end side of the paper accommodating portion 6,
As shown in FIG. 5, a slanted convex portion (regulating portion) 6 a that protrudes into the paper storage portion 6 is provided. The convex portion 6a has a shape that matches the cutout 9a of the paper package 9 described above.

Accordingly, the convex portion 6a is located at the notch 9a when the paper package 9 is set in the paper accommodating portion 6 in the correct direction, but if not, the notch 9a of the paper package 9 is removed. Corners and protrusions 6a other than those formed
Are designed to interfere with each other.

As a result, it is possible to prevent the paper package 9 from being set in the printer 1 in the wrong direction.

Next, the paper separating section 11 will be described.

In the paper storage unit 6, the printing mechanism unit 1
A pickup roller 12 and a separation block 13 are provided at the end on the side closer to 4. A pressing plate 18 is rotatably supported on the inner surface of the lid 10 facing the sheet storage portion 6 side. A coil-shaped biasing spring 19 is interposed between the pressing plate 18 and the lid body 10, and constantly applies a biasing force to the pressing plate 18 in such a direction as to rotate the pressing plate 18 downward.

As shown in FIG. 6, the above-mentioned paper package 9 is the lowermost thermal paper among the thermal papers 7 which are housed inside in a stacked state with the printing surface facing downward. The lower surface of 7 is partially exposed from the box-shaped body 8 and is set in the paper storage unit 6. And the lid 1
When 0 is closed and locked, the pressing plate 18 that is urged downward by the urging spring 19 described above causes the tongue portion 8 of the box-shaped body 8 to move.
The exposed portion of the thermal paper 7 is pressed against the pickup roller 12 side via e, and the lower surface of the thermal paper 7 is brought into contact with the pickup roller 12.

A separation block 13 is provided close to the pickup roller 12, and the separation block 13 is provided.
Is provided with a separation guide surface 13a that is inclined with respect to the paper feed direction of the pickup roller 17.

When the pickup roller 12 is rotationally driven in this structure, a conveying force is applied to the lowermost thermal paper 7 in contact with the pickup roller 12. Then, in combination with the separation action of the separation guide surface 13a of the separation block 13, only one sheet of the thermal paper 7 located in the lowermost layer is separated and sent to the printing mechanism unit 14.

At this time, the pick-up roller 12 feeds the thermal paper 7 in the longitudinal direction of the paper package 9 as shown in FIG. 6, and the feeding direction is the main body 8d of the box-shaped body 8 in the paper package 9. It is substantially the same as the arrangement direction (arrow B and arrow C direction) of the paper fibers of the thermal paper 7 housed inside. Therefore, the tension direction applied to the thermal paper 7 from the pickup roller 12 and the arrangement direction of the paper fibers in the thermal paper 7 are substantially the same, so that the thermal paper 7
It is possible to prevent curl from occurring.

Next, the printing mechanism section 14 will be described.

A platen roller 16 is rotatably provided adjacent to the separation block 13, and a paper guide 17 is arranged close to the outer peripheral surface thereof. As shown in the enlarged view of FIG. 7, the paper guide 17 has a substantially horizontal cross section of “U” along the outer peripheral surface of the platen roller 61.
A concave curved peripheral contact surface 17a is formed so as to have a letter shape. A pressing coil spring 20 is provided between the paper guide 17 and the main body case 2, and the peripheral contact surface 17a is provided.
Is urged toward the outer peripheral surface of the platen roller 16.

In this structure, the above-mentioned paper separating section 11
The thermal paper 7 separated by is conveyed by the pickup roller 12, and the lower end of the separation block 13 and the guide plate 2 for orienting the thermal paper 7 toward the platen roller 16 side.
Pass between 1.

The thermal paper 7 is guided by the guide plate 21,
From the lower surface side of the platen roller 16
And the paper guide 17. The thermal paper 7 is formed on the outer peripheral surface of the platen roller 16 and the paper guide 1.
While being held between the peripheral contact surface 17a of the plate 7, the platen roller 16 is rotated and driven so as to be inverted in a lateral "U" shape, and reaches the upper surface side of the platen roller 16 with the printing surface facing upward.

The thermal head 15 located on the upper surface side of the platen roller 16 has a heating element portion 15a as a printing portion. The thermal head 15 is rotatably provided around a rotary shaft 15b, and the heating element portion 15a can be brought into contact with and separated from the upper surface of the platen roller 16.

The thermal head 15 is configured so as to be rotatable in this way when the thermal head 15 is removed during jam paper removal work when the thermal paper 7 is jammed between the platen roller 16 and the paper guide 17. This is so as not to disturb the work.

One end of a return coil spring type spring 22 is locked to the thermal head 15 to constantly apply a biasing force in a direction in which the heating element portion 15a of the thermal head 15 approaches the upper surface of the platen roller 16.

With this structure, the heating element 15a of the thermal head 15 contacts the upper surface of the thermal paper 7 sent by the platen roller 16 with the printing surface facing upward as described above. 7 is printed.

The thermal head 15 is a line head type, and it is possible to print arbitrary characters or images on the conveyed thermal paper 7 for each line extending in the direction orthogonal to the transport direction of the thermal paper 7. it can. The printing width for printing one line is set to be substantially equal to the width of the thermal paper 7 to be printed.

In this way, the thermal head 15 is used as a print head. By using the thermal paper 7, consumables such as ink and an ink ribbon can be eliminated, and a mechanism for supplying ink can be omitted. This is because the printer 1 can be made compact.

The separation block 13 has a discharge guide surface 13b which is inclined with respect to the sheet feeding direction of the platen roller 16.

In this structure, the thermal paper 7 after the printing is made by the heating element 15a of the thermal head 15 is
The paper is guided by the paper discharge guide surface 13b, and as shown in FIG. 3, the paper is discharged to the upper side of the lid 10 from the gap formed by the upper cover 5 of the main body case 2 and the lid 10.

As described above, the printer 1
The lower surface side of the thermal paper 7 set in the paper storage unit 6 is sent so as to face the thermal head 15, and the thermal head 1
5 is used for printing. For this reason, it is required to set the front and back of the paper storage unit 6 without mistake so that the printing surface (heat-sensitive surface) of the heat-sensitive paper 7 is arranged on the lower surface.

In this respect, the paper package 9 according to the present embodiment is located at the notch 7a provided in the thermal paper 7 when the thermal paper 7 is set in the box-shaped body 8 in the correct direction. An oblique shape that allows the thermal paper 7 to be set, and that when the thermal paper 7 is set in the box-shaped body 8 in any other orientation, it interferes with the thermal paper 7 and makes it impossible to set the thermal paper 7. A wall 8f is provided.

Therefore, when the thermal paper 7 is set in the printer 1, it is prevented from being set in the wrong direction through the slanted wall 8f, so that the thermal paper 7 is properly inserted in the front and back and in the front-back direction. It is possible to prevent printing trouble.

As described in detail above, in the paper package 9 according to the present embodiment, the box-shaped body 8 is formed of a paper material, and the heat-sensitive paper 7 and the upper wall portion 8h and the lid portion of the main body 8d of the box-shaped body 8 are provided. In consideration of the fact that the swelling characteristics can be made equal by making the degree of swelling less likely to be affected by humidity in the arrangement direction of the paper fibers with 8c and the tongue portion 8e, the arrangement direction of the paper fibers in the thermal paper 7 (arrow B direction), upper wall portion 8h, lid portion 8
c, the arrangement direction of the paper fibers of the tongue portion 8e (direction of arrow C) is substantially the same, so that both the thermal paper 7 and the main body 8d are less susceptible to humidity and the degree of swelling is reduced,
It is possible to make both swelling properties equal. As a result, the frictional force between both side edges of the thermal paper 7 and the inner surface of the side wall portion 8g of the main body 8d can be made substantially constant, and the thermal papers 7 can be stably delivered one by one from the paper package 9.

Further, in the thermal paper 7 inserted in the main body 8d and stored in a laminated state, the frictional force generated between the thermal paper 7 and the thermal paper 7 is the thermal paper 7 and the tongue portion 8 of the main body 8d.
e, it is set to be smaller than the frictional force generated between the inner surface (lower surface) of the upper wall portion 8h. With this configuration, the thermal papers 7 in a laminated state can be sequentially fed out one by one from the main body 8d, and even when the number of laminated thermal papers 7 is reduced, the last one is properly processed. Can be sent to.

Further, as shown in FIG. 6, the pick-up roller 12 feeds the thermal paper 7 in the longitudinal direction of the paper package 9, and this feed-out direction is within the main body 8d of the box-shaped body 8 in the paper package 9. Is substantially the same as the arrangement direction of the paper fibers of the thermal paper 7 housed in (direction of arrow B and arrow C).
Further, since the tension direction applied to the thermal paper 7 and the arrangement direction of the paper fibers in the thermal paper 7 are substantially the same, it is possible to prevent the thermal paper 7 from curling.

The present invention is not limited to the above-mentioned embodiment, and it goes without saying that various improvements and modifications can be made without departing from the spirit of the present invention.

[0063]

As described above, in the paper package according to the first aspect of the invention, the direction of the paper fibers forming the paper and the direction of the paper fibers forming the box-shaped body of the paper package are substantially the same. It is possible to make both of the paper packages less susceptible to the influence of humidity, reduce the degree of swelling, and equalize the swelling characteristics of both. As a result, the frictional force between the both side edges of the sheet and the inner surface of the side wall of the box-shaped body can be made substantially constant, and the sheets can be stably delivered one by one from the box-shaped body.

Further, in the paper package according to the second aspect, the frictional force generated between the papers stacked in the box-shaped body and the papers causes the paper and the upper wall surface or the lower wall surface of the box-shaped body. Since it is set to be smaller than the frictional force that occurs between sheets, it is possible to sequentially feed the stacked sheets one by one, and even when the number of stacked sheets is small, the last sheet It is possible to send it out properly.

Further, in the paper package according to the third aspect of the invention, the paper fibers of the paper stored in the box-shaped body are oriented in substantially the same direction as the paper transport direction by the paper transport mechanism of the printer. The tension direction applied to the paper by the mechanism and the direction of the paper fibers are substantially the same, and thus it is possible to prevent the paper from curling.

[Brief description of drawings]

FIG. 1 is a perspective view of a paper package.

FIG. 2 is a perspective view schematically showing a state where sheets are set in a sheet package.

FIG. 3 is a perspective view of a printer.

FIG. 4 is a side sectional view of the printer.

FIG. 5 is a perspective view showing a state where sheets are set in a sheet storage unit.

FIG. 6 is a side sectional view showing a state in which sheets are set in a sheet storage unit.

FIG. 7 is an enlarged cross-sectional view showing details of a sheet separating unit and a printing mechanism.

[Explanation of symbols]

1 printer 6 Paper storage 7 Thermal paper 8 boxes 8c lid 8d body 8e Velo Division 8g side wall 8h Upper wall 9 paper packages

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Keiji Seo             Brother, 15-1, Naeshiro-cho, Mizuho-ku, Nagoya             Industry Co., Ltd. F-term (reference) 3E014 MC05 MC07 MC08                 3E060 AA03 AB01 BA02 BC04 DA17                       EA08 EA14                 3F343 FA02 FC19 GA01 GB02 GC01                       HB06

Claims (3)

[Claims] 1. A paper package having a box-shaped body for accommodating sheets in a stacked state, the paper package being formed of a paper material, wherein the direction of the paper fibers constituting the paper and the box-shaped body of the paper package are A paper package characterized in that the directions of the constituent paper fibers are substantially the same. 2. The frictional force generated between the sheets of paper is set to be smaller than the frictional force generated between the sheets of paper and the upper wall surface or the lower wall surface of the box-shaped body. The paper package according to claim 1. 3. The paper package is used in a printer having a paper transport mechanism, and the direction of paper fibers of the paper is substantially the same as the paper transport direction of the paper transport mechanism. The paper package according to claim 1 or 2.