JP2002003022A - Printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printer having a rolled paper holder capable of stably supporting entire rolled paper having several widths in the same state. SOLUTION: This printer 1 comprises a printing mechanism 10, a bottom part 4a having a first abutting bottom part 42 and a second abutting bottom part 41, the rolled paper holder 4 comprising a pair of a first abutting side part 4c and a second abutting side part 4d disposed mutually substantially in parallel, a third abutting side part 71 disposable substantially in parallel with the first abutting side part 4c and the second abutting side part 4b of the rolled paper holder 4, a connecting part 72 connectable with the second abutting side part 4b of the rolled paper holder 4, and a partitioning member 7 having a third abutting bottom part 72 that can abut on and engage with the bottom part 4a of the rolled paper holder 4 with a predetermined elasticity.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer for printing on roll paper by a thermal method, and more particularly to a printer having a roll paper holder capable of supporting several types of roll paper having different paper widths.

[0002]

2. Description of the Related Art Generally, a printer of this type has a roll paper holder formed in a substantially box shape so as to accommodate roll paper, and a recording paper is formed from the roll paper holder along a predetermined paper path. It is configured to draw out.

Incidentally, the conventional roll paper holder is formed to have a size capable of accommodating roll paper having a predetermined standard width, but it is also necessary to use a roll paper having a width smaller than the width of the roll paper. is there.

Therefore, conventionally, a partition having a desired size is formed in the roll paper holder by disposing a partition plate at a predetermined position in the roll paper holder.
The roll paper holder is adapted to accommodate several types of roll paper having different paper widths.

[0005]

However, in such a conventional printer, when the partition plate is mounted in the roll paper holder, the partition plate may be mounted floating from the bottom of the roll paper holder, or may be attached to the roll paper holder. In some cases, the holder was attached obliquely to the side surface inside the holder.

As a result, the recording paper pulled out from the roll paper is caught in the gap formed between the partition plate and the bottom of the roll paper holder, or the end face of the roll paper comes into contact with the inclined partition plate in this state. Using a partition plate as the roll paper holder as in the prior art, such as when the recording paper pulled out of the roll paper is skewed, supports the roll paper in the same state as when the roll paper is supported only by the roll paper holder. Could not.

SUMMARY OF THE INVENTION The present invention has been made to solve such problems of the prior art, and an object of the present invention is to stably support all roll papers having several types of paper width in the same state. It is an object of the present invention to provide a printer having a roll paper holder which can be used.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a printing mechanism for printing on recording paper drawn from roll paper, and a part of the outer peripheral surface of the first roll paper. A bottom portion having a pair of first and second contact bottom portions that are in contact with and supported, and a portion that can contact with the end surface of the first roll paper, and are substantially parallel to each other with the bottom portion therebetween. , A roll paper holder having a pair of first and second contact side portions, and a first contact side portion and a second contact side portion of the roll paper holder. A third contact side portion that can be brought into contact with an end surface of a second roll paper that is narrower than the first roll paper;
The second roll is provided on the first contact side portion of the roll side in a direction substantially perpendicular to the third contact side portion, and the first contact bottom portion of the roll paper holder together with the second roll. A partition member having a third contact bottom that contacts and supports the outer peripheral surface of the paper; and the first contact side and the third contact side are substantially parallel at a predetermined interval. And a connecting mechanism capable of mounting the partition member to the roll paper holder.

In the case of the present invention, since the partition member is provided with the third contact side and the third contact bottom, even if the partition member is mounted floating above the bottom portion of the roll paper holder, the third contact side is provided. Since there is no gap between the contact side of No. 3 and the third contact bottom, the recording paper drawn from the roll paper is not pinched, and the second contact side and the second contact bottom are not sandwiched. The outer peripheral surface of the roll paper can be supported in the same state as the contact bottom.

[0010] In the present invention, the connecting mechanism may include:
The first contact side portion and the third contact side portion so that the partition member can support the second roll paper or a third roll paper narrower than the second roll paper. It is effective to have a positioning and locking portion that can set the interval between them at a plurality of stages.

According to the present invention, since the partition member is positioned at the roll paper holder at several places,
One partition member can correspond to a plurality of types of roll paper.

[0012] In the present invention, the connecting mechanism may include:
Having a snap fit mechanism is desirable because it is easy to attach and detach.

Further, in the present invention, the partition member may include the third contact part which is partially separated from the third contact side.
It is also effective that an elastic contact portion and an engaging portion of the contact bottom portion are provided, and the roll paper holder is provided with a mounting locking portion for locking the engaging portion.

According to the present invention, the front contact portion of the third contact bottom portion of the partition member is elastically engaged with the roll paper holder, so that the roll can be easily rolled only by pushing the partition member. The partition member can be attached to the paper holder, and the third contact bottom of the partition member can be brought into close contact with the roll paper holder.

[0015] In the present invention, the connecting mechanism may include:
A lower engaging portion at a lower portion of the roll paper holder, wherein the roll paper holder and the partition member engage with each other;
At the upper end of the contact side of the roll paper holder and the partition member, the upper engagement portion of the coupling mechanism, It is preferable that the holder is constituted by a projecting portion projecting from the upper end portion of the holder and a hole engaged with the projecting portion disposed on the partition member, since the posture of the partition member is defined or the mounting is easy. .

Further, in the present invention, when the partition member is formed of a transparent material, the engagement portion of the roll paper holder can be visually recognized through the partition member, so that the workability at the time of mounting is greatly improved. Things.

Still further, in the present invention, when the partition member comes into contact with a guide surface parallel to the first side portion or the second contact side portion provided on the bottom portion, the first contact portion is provided. It is also effective to provide a movement restricting portion in which the contact side portion and the third contact side portion have a predetermined width.

According to the above configuration, when the partition member is mounted on the roll paper holder while the movement restricting portion is in contact with the guide surface or the second contact side portion, the partition member is moved to the second roll. Since it can be mounted at a predetermined position where only one of the paper and the third roll paper can be supported, the workability of mounting is greatly improved.

Further, in the present invention, the movement restricting portion is formed on a side opposite to the third bottom portion from the third contact side portion, and is capable of contacting the second contact side portion. A first width regulating portion and a second width regulating portion shorter than the first width regulating portion, wherein the first width regulating portion is configured to be separable from the third contact side portion. In this case, it is preferable that a groove is formed in the first width regulating portion in the vicinity of the third contact side portion.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a printer according to the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a side view showing a schematic configuration of the printer according to the present embodiment with a roll paper cover opened. FIG. 2 is a perspective view showing a schematic configuration of the printer with the roll paper cover opened. FIG. 3 is a side view illustrating a schematic configuration of the printer in a state where a roll paper cover is closed.

FIG. 4A is a perspective view showing a schematic configuration of a partition member of the present embodiment, and FIG. 4B is a perspective view showing a schematic configuration of a roll paper holder of the present embodiment. FIG.
FIG. 4 is a perspective view showing a state in which a partition member is mounted on a roll paper holder.

As shown in FIG. 1, a printer 1 according to the present embodiment has a main body case 2 having an opening and a roll paper cover 3 sized to close the opening. The main body case 2 and the roll paper cover 3 are each formed using a resin, and the main body case 2 is formed in a substantially rectangular parallelepiped shape from a rectangular bottom portion and a wall portion surrounding the bottom portion. The roll paper cover 3 is formed in a rectangular flat plate shape.

Here, the printer 1 of the present embodiment can select either a vertical or horizontal installation mode, and the printer 1 of FIG. 1 shows a printer in a horizontal state. ing. Then, the above-described main body case 2 is replaced with a first installation section 2 serving as a bottom when the printer 1 is placed horizontally.
In this state, among the walls of the main body case 2, the front side (right side in FIG. 1) of the main body case 2 is referred to as a front portion 2 b, and the rear side wall portion of the main body case 2 is referred to as a printer 1. Is the second installation part 2c because it becomes the bottom part when it is placed vertically.

Further, in this state, the left side wall (the front side in FIG. 1) of the main body case 2 is moved to the first side wall 2e.
The right side wall (rear side in FIG. 1) of the main body case 2 is referred to as a second side wall 2d. In the following description, the vertical direction and the front-back direction of the printer 1 will be referred to when the first installation portion 2a of the main body case 2 is on the lower side.

As shown in FIG. 1 or FIG.
Is provided with a roll paper holder 4 capable of storing the roll paper S.
Is provided. The roll paper holder 4 has a bottom 4a.
And a pair of side portions (4b, 4c) provided so as to sandwich the bottom portion 4a, and are integrally formed in a substantially box shape using resin. Here, of the side portions of the roll paper holder 4, the side portion facing the first side wall portion 2e of the main body case 2 is referred to as a first contact side portion 4c, and the second side wall portion 2d of the main body case 2 is The opposite side is referred to as a second contact side 4b.

As shown in FIG. 4B or FIG. 5, the bottom 4a of the roll paper holder 4 is formed in a substantially concave curved shape with a width slightly larger than a predetermined roll paper width W1 (for example, 80 mm).

Of the bottom 4a of the roll paper holder 4, the second
A second contact bottom 41 is provided at an end portion on the contact side portion 4b side.
Is provided with a predetermined width L so as to be able to contact one end portion of the outer peripheral surface S1 of the roll paper S. The second contact bottom portion 41 is formed to have a predetermined curvature from the front side of the roll paper holder 4 to the center of the bottom thereof with a predetermined curvature, and is connected to this end portion to be inclined slightly obliquely downward. A lower contact portion 41b, and a rear contact portion 41c formed to be inclined obliquely downward from the rear upper side of the roll paper holder 4 toward a portion spaced from the end by a predetermined distance. .

A first contact bottom 42 is provided at an end of the bottom 4a of the roll paper holder 4 on the first contact side 4c side, at the other end of the outer peripheral surface S1 of the roll paper S. It is provided with the same width L as the second contact bottom 41 so that it can contact the portion. The first contact bottom 42 is formed by the front contact 41 a and the lower contact 41 of the second contact bottom 41 described above.
b and the rear contact part 41c (4
2a, 42b, 42c) correspond to the bottom 4 of the roll paper holder 4.
a are arranged at the same position in the circumferential direction.

In the bottom 4a of the roll paper holder 4, the lower contact portions 42b, 41b and the rear contact portion 42c of the first contact bottom 42 and the second contact bottom 41, respectively.
41c, a small-diameter roll paper S or roll paper S
A groove 43 for supporting a core (not shown) is formed.

As a result, when the roll paper S is rewound, it rolls rearward and the rear contact portions 42c and 41c and the lower contact portion 4c.
2b, 41b. When the outer diameter of the roll paper S decreases and the recording paper S5 is conveyed continuously like a line thermal printer, the roll paper S moves on the lower contact portions 42b and 41b in the paper feed direction without being rewound. May be. In this case, the roll paper S is
After abutting on 2a and 41a, it is rotated while being rewound backward.

As shown in FIG. 2, the first contact side 4c of the roll paper holder 4 is provided with a remaining paper detector 44 for detecting that the remaining paper is small. ing.
The paper remaining amount detector 44 is selectively installed depending on whether the printer 1 is placed horizontally or vertically.

As shown in FIG. 4B, a first bottom 45 and a second bottom 46 are provided between the first contact bottom 42 and the second contact bottom 41 of the roll paper holder 4. But roll paper S
The first contact bottom 42 and the second contact bottom 41 are provided to be lower than the first contact bottom 42 and the second contact bottom 41 so as not to come into contact with the first contact bottom 42 and the second contact bottom 41.

The first bottom 45 has a predetermined width and is disposed adjacent to the second contact bottom 41.
The second and the second contact bottoms 41 have a bottom portion thinner than the bottom portion. The respective side surfaces 41a of the front contact portion 41a and the rear contact portion 41c of the second contact bottom portion 41
1, 41c1 are formed on the second bottom 41 side of the first bottom 45 in parallel with the first contact side 4c and the second contact side 4b.

A part of the rear side of the groove 43 is partially opened, and a locking edge 45b with which a locking part 78 of the partition plate 7 described later is engaged is formed. In the vicinity of the opening, the groove 43 is provided with a positioning projection 43a for engaging with the partition member 7 for determining the position of the partition member 7 in the width direction.

The second bottom 46 has a predetermined width and is disposed between the first bottom 45 and the first contact bottom 42. The second bottom portion 46 includes a front contact portion 42a, 41a, a lower contact portion 42b, 42c, 41b, 41c, and a rear contact portion of the first contact bottom 42 and the second contact bottom 41, respectively. 42c and 41c are substantially identical in shape and are thinner by a predetermined thickness (46a, 46b and 46c). Thus, the second bottom 46 and the first contact bottom 42 are arranged side by side at a predetermined depth in a stepped manner.

On the other hand, the first contact side portion 4c and the second contact side portion 4b of the roll paper holder 4 are formed in a substantially semicircular flat plate shape and contact a part of the end face of the roll paper S. They are arranged parallel to each other so that they can be made. Here, as shown in FIG.
A DIP switch 5 for performing a predetermined setting is provided between the second side wall 2 d of the main body case 2 and the second contact side 4 b of the roll paper holder 4. In the second contact side portion 4b of the roll paper holder 4, a concave portion 40b which is larger than the outer shape of the DIP switch 5 is formed.

As shown in FIG. 3 or 5, a tension member 6 is provided at the front end of the bottom 4a of the roll paper holder 4 so as to extend in the width direction of the roll paper holder 4. .

Next, regarding the partition member of the present invention, FIG.
(A) will be described with reference to FIGS. FIG. 6A is a perspective view of the partition member viewed from the first contact side, FIG. 6B is an explanatory view of the width regulating portion 75, FIG. FIG. 7 is an explanatory view of mounting a partition member in a width direction.

The printer 1 of the present embodiment has a partition member 7 that can be attached to and detached from the roll paper holder 4. The partition member 7 is made of, for example, a transparent polycarbonate resin, and has a third contact side portion 71 and a third contact bottom portion 72.
And the connecting portion 73 are integrally formed.

The third contact side 71 of the partition member 7 is formed in a substantially semicircular flat plate shape. This third contact side 7
A concave portion 71a having substantially the same shape as the second contact side portion 4b of the roll paper holder 4 is formed at a predetermined portion of the roll paper holder 4.
A substantially hook-shaped projection 71b is formed at the tip of the third contact side portion 71. On the other hand, as shown in FIG. 5, a groove 6a is formed in the tension member 6 so that the projection 71b of the third contact side portion 71 can be inserted.

As shown in FIG. 4A, the third contact bottom 72 of the partition member 7 is orthogonal to the third contact side 71 on the peripheral portion of the third contact side 71. It is provided in a substantially strip shape with the same width as the second contact bottom 41 in the direction.

The inner surface of the third contact bottom 72 is formed substantially the same as the second contact bottom 41. More specifically, the third contact bottom portion 72 is connected to a front contact portion (elastic contact portion) 72a formed in a concave curved shape at a predetermined curvature, and is connected to this end portion to be slightly inclined slightly downward. A lower contact portion 72b formed in a flat shape and a rear contact portion 72c formed in a flat plate shape inclined obliquely downward from the rear upper side toward a portion spaced a predetermined distance from this end. .

Further, the third contact bottom 7 of the partition member 7
When the third contact bottom 72 abuts on the first bottom 45 of the roll paper holder 4, the thickness of each portion of the second contact 2 is the third contact bottom 72 and the first contact of the roll paper holder 4. The upper surface of each contact bottom 42 is included on the same plane, that is, the third contact bottom 72 and the first contact bottom 42 of the roll paper holder 4 are both formed on the outer peripheral surface of the roll paper S3. It is set so that it can contact both ends of S1.

A groove 72a1 is formed in the third contact bottom 72 of the partition member 7 at a front portion of the front contact portion 72a so as to be separated from the third contact side portion 71. Thereby, the front contact portion 72 of the third contact bottom portion 72 is formed.
a is configured to be elastically displaceable. Further, a hook-shaped engaging hook portion 72a2 is formed at the tip of the front contact portion 72a.

On the other hand, as shown in FIG. 4B, a front end of the first bottom 45 of the roll paper holder 4 is provided with an engagement hook 72a2 of a front contact portion 72a of the partition member 7.
A locking edge 45a is formed which can be engaged with the engaging edge 45a.

As shown in FIG. 4A, the connecting portion 73 of the partition member 7 is connected to the third contact bottom portion 7 of the third contact side portion 71.
2 is provided in a substantially rectangular flat plate shape of a predetermined size so as to include a bottom edge portion 71a1 of the concave portion 71a and extend on a plane orthogonal to the third contact side portion 71 on a portion opposite to the second contact side portion 71a.
The end portion of the connecting portion 73 is connected to the concave portion 4 of the roll paper holder 4.
0b is formed to a length that can be fitted to the bottom portion. As shown in FIG. 5, two round holes 74 for positioning are provided at an edge portion of the connecting portion 73 at an interval of a predetermined set width w.
Positioning holes (positioning locking portions) 7 connecting a and 74b
4 are provided at a predetermined distance.

The positioning hole 74 is formed in the rear contact portion 72c.
V-grooves 77a, 7 formed with the same width w as
A lower positioning portion 77 having 7b is formed. Further, as shown in FIG. 7, a locking portion 78 protruding along the entire width of the rear contact portion 72c is formed on the rear side of the rear contact portion 72c.

As shown in FIG. 6, a first width restricting portion 75 (75a, 75b, 75a, 75b, 75a, 75b, 75) is formed on a portion of the third contact side portion 71 of the partition member 7 opposite to the third contact bottom portion 72. 75c) is formed, and the first width w is equal to the width w of the positioning hole 74.
A second width regulating portion 76 shorter than the width regulating portion 75 is provided. A V-shaped groove 75d is provided at the base of each first width regulating portion 75.
When the distal end portion 75f of the width regulating portion 75 is displaced in a direction without the V groove 75d, stress concentrates on the V groove 75d, so that the distal end portion 75a is separated from the V groove 75d, and the distal end portion 75a is separated from the partition member 7. Have been.

On the other hand, as shown in FIG. 4A, the bottom portion 4 of the concave portion 40b of the second contact side portion 4b of the roll paper holder 4 is formed.
0b1 has each round hole 74 of such a positioning hole 74.
a, an engagement protrusion 47 that can be engaged with 74b. Here, in the partition member 7, the positional relationship between the positioning hole 74 of the connecting portion 73 and the third contact side portion 71 is such that the third contact side portion 71 of the partition member 7 is the first contact side of the roll paper holder 4. Between the roll paper S having two types of roll paper widths W2 (for example, 60 mm) and W3 (for example, 58 mm) smaller than the roll paper width W1 that the roll paper holder 4 itself can support alone. The position is determined so that it can be brought into contact with a slight gap.

As shown in FIG. 4B, the rear end portions of the first contact side 4c and the second contact side 4b of the roll paper holder 4 are provided with bearings 4d and 4d, respectively. 4e is provided. On the other hand, as shown in FIG.
Bearing portions 3a, 3b
Are formed. The bearings 3a and 3b of the roll paper cover 3 are penetrated by the support pins 8 on both sides thereof together with the bearings 4d and 4e of the roll paper holder 4 and a bearing (not shown) of the main body case 2 side. Constitutes the hinge 3c of the roll paper cover 3. Thus, the roll paper cover 3 is supported by the main body case 2 so as to be freely opened and closed.

As shown in FIG. 1 or FIG. 3, a line thermal head 11 for performing printing by a thermal method is provided between the tension member 6 on the roll paper holder 4 side and the front portion 2b of the main body case 2. ing. On the other hand, a platen roller 12 is rotatably provided at the leading end 3 b of the roll paper cover 3. When the roll paper cover 3 is closed, the platen roller 12
, And the thermal head 11 and the platen roller 12 constitute the printing mechanism 10 of the present embodiment. Further, the platen roller 12 is configured to be rotated by a pulse motor (not shown).

As shown in FIG. 1 or FIG. 3, a movable blade device 52 configured to move the movable blade 51 is provided above the thermal head 11 in the main body case 2. On the other hand, a fixed blade 53 is provided at a predetermined portion of the leading end portion of the roll paper cover 3, and when the roll paper cover 3 is closed, the fixed blade 53 is disposed at a position where the movable blade 51 can cross and slide with the movable blade 51. It is supposed to be.

In this embodiment having such a configuration, when the roll paper S having the roll paper width W1 is used, the roll paper S is loaded into the roll paper holder 4 without using the partition member 7. In this case, the roll paper S is supported at both ends of the outer peripheral surface S1 by the first contact bottom 42 and the second contact bottom 41, and the first contact side 4c of the roll paper holder 4 and the second The movement in the width direction is restricted by the contact between the contact side 4b and both end faces.

When printing is performed, the platen roller 1
When the recording paper S5 is pulled out from the roll paper S by rotating the roll paper 2, the roll paper S is rotated. In this case, the roll paper S
Since the outer peripheral surface S1, that is, the heat-sensitive recording side contacts only a part of the first contact bottom 42 and the second contact bottom 41 of the roll paper holder 4, the heat-sensitive material of the roll paper S is The applied part is not damaged.

On the other hand, when a roll paper having a roll paper width W3 is used, first, the partition member 7 is mounted on the roll paper holder 4.

The mounting operation will be described in detail.
To the second contact side portion 4b side, the first width regulating portion 75a,
The engaging portions 78 of the partition member 7 are engaged with the engaging edges 45 while the end surfaces 75e of the members 75b and 75c are in contact with the second contact side portion 4b.
b, and is pushed toward the bottom 4a of the roll paper holder 4. The bottom surface of the third contact bottom 72 covers the first bottom 45 of the roll paper holder 4, and the connecting portion 73
Is a bottom 40b1 of the recess 40b of the roll paper holder 4,
The bottom edge portion 71a1 of the concave portion 71a of the partition member 7 comes into contact with the partition member 7.

Thereafter, the front contact portion 72a of the partition member 7
Is pressed to reduce the radius of curvature of the roll paper holder 4 to engage the engaging hook portion 72a2 with the locking edge 45a of the roll paper holder 4. As a result, the partition member 7 is fixed to the roll paper holder 4 with the third contact bottom 72 pressed on the first bottom 45 of the roll paper holder 4.

By these operations, the lower positioning portion 77
V groove 77b is engaged with the positioning projection 43a, and among the positioning holes 74 of the connecting portion 73 of the partition member 7, a round hole 74b from the third contact side portion 71 to the back side is the fourth hole of the roll paper holder 4. Engage with the engagement protrusion 47 of the first contact side portion 4b. In the partition member 7, two positions in the width direction are determined at the upper portion and one position at the lower portion in the width direction. The third contact side portion 71 of the partition member 3 is in the first position.
Is attached in parallel to the contact side 4c.

In this case, the first width regulating portion 75 comes into contact with the second contact side 4b, and the second contact side 4
b, the V-groove 7 of the lower positioning portion 77
The engaging projection 47 does not engage with the positioning projection 43a and the round hole 74a on the front side. Therefore, when the partition member 7 is simply mounted while being pressed against the first contact side portion 4b, the specification can be a roll paper specification having the paper width W3, so that workability can be improved and erroneous mounting can be prevented.

Thereafter, the roll paper S having a paper width W3 is placed in the space portion partitioned by the partition member 7 in the roll paper holder 4.
Load 3 In this case, of the ends of the outer peripheral surface S1 of the roll paper S3, the end opposite to the end supported by the first contact bottom 42 and the first contact side 4c of the roll paper holder 4 is referred to as the end. The third contact bottom 72 of the partition member 7 and the third
Is supported in the same manner as the second contact bottom 41 and the second contact side 4b of the roll paper holder 4 by the contact side 71, so that the recording paper pulled out from the roll paper S3 and the roll paper The paper is supported in the same state as when the paper is supported by the roll paper holder 4 alone without using the partition member 7.

Next, a case where the roll paper holder is set for roll paper having a roll paper width W2 will be described. in this case,
First width regulating portions 75a, 75b, 75c of partition member 7
Is displaced in the direction without the V-groove 75d, and is folded.
Remove from Next, the end surface 76a of the second width regulating portion 76
Is held in contact with the second contact side portion 4b, the engaging portion 78 of the partition member 7 is engaged with the engaging edge 45b, and is pushed toward the bottom 4a of the roll paper holder 4. Subsequent operations are the same as in the case of the roll paper width W3.

By these operations, the partition member 7 is moved to the second position.
Is guided by the first width regulating portion 75a or the like, so that the positioning projection 43a is positioned at the lower position because it is closer to the second contact side portion 4b by the set width w than when guided by the first width regulating portion 75a or the like. The engaging projection 47 of the second contact side portion 4b of the roll paper holder 4 engages with the round hole 74a of the positioning hole 74, and the roll paper holder has a roll paper width. It is determined for the roll paper of W2.

As described above, according to the present embodiment,
The third contact side portion 71 of the partition member 7 is positioned while maintaining a state parallel to the first contact side portion 4 c of the roll paper holder 4, and a third contact bottom portion 72.
Is supported together with the first contact bottom 42 in the same manner as the second contact bottom 41, so that even if the outermost sheet of the roll paper is loosened, Since there is no gap between the contact bottom portion and the contact side portion of the partition member, there is no problem caused by the recording paper sandwiched by the conventional technique. Therefore, regardless of whether the partition member 7 is used or not, different paper widths (W
1, W2, W3) can be stably supported in the same state.

According to the present embodiment, the front contact portion 72a of the third contact bottom 72 of the partition member 7 is elastically displaced to engage with the roll paper holder 4. It can be easily mounted on the roll paper holder 4 simply by pushing the partition member 7, and can be securely mounted in a state of being pressed against the roll paper holder by its elastic force. To remove the partition member 7, insert the tip of a flathead screwdriver from above to disengage the engagement hook portion 72a2 and the locking edge 45a, and the partition member 7 is easily lifted upward because of the elastic force. be able to.

Further, according to the present embodiment, since the partition member 7 is positioned at the roll paper holder 4 at several places, one partition member 7 can correspond to a plurality of types of roll paper. be able to.

Also, as in the present embodiment, the partition member 7
Are transparent, the first width regulating portions 75a, 75
When the roll paper b and 75c are folded and removed from the partition member 7 to obtain the specification of the roll paper width W2 and then the specification of the roll paper width W3, the V groove 77b of the lower positioning portion 77 is set to
3a, the round hole 74b of the positioning hole 74 is easily engaged with the engagement projection 47, and can be easily confirmed by visual inspection.

It should be noted that the present invention is not limited to the above-described embodiment, and various changes can be made.

For example, in the above embodiment, the positions of the positioning holes 74 of the partition member 7 are determined at two positions. However, the present invention is not limited to this. It is also possible to determine three or more positions, whereby the number of types of roll paper that can be supported by the roll paper holder 4 using the partition member 7 can be increased.

Further, when the partition member 7 is mounted, the width restricting portion 75 is mounted in contact with the second contact side surface 4b.
The side surfaces 41a1 and 41c1 of the first contact bottom 41 may be used as guide surfaces. In this case, the surface of the third contact side 71 opposite to the contact bottom may be used to achieve the roll paper width W2 specification. In order to achieve the specification of the roll paper width W3, the side surfaces 72c1 and 72a3 of the third contact bottom 72 may be mounted while the side surfaces 72c1 and 72a3 of the second bottom 46 are in contact with the side surfaces 46a1 and 46c1. .

[0071]

As described above, according to the present invention, even when roll paper is stored in the roll paper holder using the partition member, the roll paper is stored alone in the roll paper holder without using this. Even in this case, regardless of these, all of several types of roll paper having different paper widths can be stably supported in the same state.

According to the present invention, the third member of the partition member
The contact bottom is elastically engaged with the roll paper holder, so that it can be easily mounted on the roll paper holder simply by pushing the partition member.

Further, according to the present invention, the partition member is
Since the roll paper holder is positioned at several places, one partition member can handle a plurality of types of roll paper.

[Brief description of the drawings]

FIG. 1 is a side view illustrating a schematic configuration of a printer according to an embodiment when a roll paper cover is opened.

FIG. 2 is a perspective view illustrating a schematic configuration of the printer with a roll paper cover opened.

FIG. 3 is a side view showing a schematic configuration of the printer with a roll paper cover closed.

FIG. 4A is a perspective view illustrating a schematic configuration of a partition member according to the present embodiment. (B): It is a perspective view which shows schematic structure of the roll paper holder of this Embodiment.

FIG. 5 is a perspective view showing a state where the partition member is attached to the roll paper holder.

FIG. 6 is a perspective view and a partial explanatory view of a first contact side of the partition member of the present embodiment.

FIG. 7 is a cross-sectional mounting explanatory view of the partition member of the present embodiment.

FIG. 8 is an explanatory view for attaching the partition member of the present embodiment in the width direction.

[Description of Signs] 4 Roll paper holder 4b Second contact side 4c First contact side 41 Second contact bottom 42 First contact bottom 7 Partition member 71 Third contact side 72 third contact bottom 72a front contact (elastic contact) 73 connecting part 74 positioning hole (position locking part) 10 printing mechanism

Claims (10)

[Claims] A printing mechanism for printing on the recording paper pulled out from the roll paper; a pair of first contact bottom portions that contact and support a part of the outer peripheral surface of the first roll paper; A bottom having an abutment bottom,
A roll having a pair of a first contact side and a second contact side that is a portion that can contact an end face of the first roll paper and that is provided substantially parallel to each other with the bottom portion interposed therebetween. A paper holder, a second roll attached between the first contact side and the second contact side of the roll paper holder, the second roll being narrower in width than the first roll paper The third that can abut the paper edge
And a third contact side portion of the roll paper holder is provided on the first contact side portion side of the third contact side portion in a direction substantially orthogonal to the third contact side portion. A partition member having a third contact bottom that contacts and supports the outer peripheral surface of the second roll paper together with the contact bottom of the first and second roll papers; the first contact side and the third contact side And a connecting mechanism capable of attaching the partition member to the roll paper holder so that the partition member is substantially parallel at a predetermined interval. 2. The connection mechanism according to claim 1, wherein the partition member is configured to support the second roll paper or a third roll paper having a width smaller than the second roll paper. 2. A positioning locking part which can set a distance between a part and the third contact side part in a plurality of steps.
The printer described. 3. The printer according to claim 1, wherein the connection mechanism has a snap-fit mechanism. 4. The connecting mechanism, wherein the partition member includes:
An elastic contact portion and an engaging portion of the third contact bottom portion, which are partially separated from the third contact side portion, are provided, and the engaging portion is locked to the roll paper holder. 4. The printer according to claim 3, further comprising: 5. The connecting mechanism according to claim 1, wherein a lower engaging portion at which the roll paper holder and the partition member engage with each other at a lower portion of the roll paper holder, and a roll at an upper end of the second contact side portion. The printer according to any one of claims 1 to 4, further comprising a paper holder and an upper engagement portion with which the partition member engages. 6. The upper engaging portion of the connecting mechanism includes a projecting portion projecting from the upper end portion of the roll paper holder, and a hole engaging with the projecting portion arranged on the partition member. The printer according to claim 5, wherein 7. The printer according to claim 1, wherein the partition member is formed of a transparent material. 8. When the partition member comes into contact with a guide surface parallel to the first side portion provided on the bottom portion or the second contact side portion, the first contact side portion and the second contact side portion come into contact with each other. The printer according to any one of claims 1 to 7, further comprising a movement restricting portion having a third contact side portion having a predetermined width. 9. A first width which is formed on the side opposite to the third bottom portion from the third contact side portion, and which is capable of contacting the second contact side portion. A regulating portion and a second width regulating portion shorter than the first width regulating portion, wherein the first width regulating portion is configured to be separable from the third contact side portion. The printer according to claim 8, wherein 10. The printer according to claim 9, wherein the first width regulating portion has a groove formed near the third contact side portion.