JP2001088987A - Printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printer easily conformable to a change of roll paper width. SOLUTION: A partitioning plate 19 for regulating the side edge of a roll paper S housed in a roll paper housing part 12 is provided within the roll paper housing part 12 provided within a body case 123 for rotatably supporting one end of an open cover 14 and opened and closed according to the rotation of the open cover 14 in such a manner as to be slidable in the lateral direction of the roll paper S. A slide regulation part 30 for engagingly locking the tip of the partitioning plate 19 in the state where the open cover 14 is closed to regulate the slide of the partitioning plate 19 is provided on the roll paper housing part 12-side surface of the open cover 14. According to this, since the partitioning plate 19 is slidable in the state where the open cover 14 is opened, and the slide of the partitioning plate 19 is regulated when the open cover 14 is closed, the movement and fixation of the partitioning plate 19 according to the change of width of the roll paper S can be facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer having a roll paper storage section for storing roll paper in which long paper is wound in a roll shape, and performing printing on the roll paper storage section.

[0002]

2. Description of the Related Art Conventionally, a main body case has a roll paper storage portion for storing roll paper in which long paper is wound in a roll shape, and one end is rotatably supported by the main body case. There is a small printer in which a roll paper holding unit is opened and closed according to rotation of a cover. FIG. 4 shows an example of such a printer. The printer 1 shown in FIG.
And an open cover 4 whose one end is rotatably supported by the main body case 3. According to the rotation of the open cover 4, the roll paper storage unit 2
Is opened and closed.

The setting of the roll paper S in the roll paper storage section 2 is as simple as placing the roll paper S on the semicylindrical recess 5 and closing the open cover 4. In such a throw-in type printer 1, when the roll paper S having a small width is used, for example, the roll paper S is detached from the recess 5 in order to prevent the roll paper S from playing in the axial direction in the roll paper storage unit 2. A flexible partition plate (not shown) is used to press the side edge of the roll paper S with the partition plate, or such a partition plate is slidably provided in the recess 5 and fixed at an arbitrary position by screwing. Yes, and so on.

A roll paper S used in the printer 1
There is a label roll in which, in addition to a roll of long paper, a long mount having a large number of labels cut into a predetermined size adhered thereto. Further, recently, a linerless label roll in which an uncut long label is wound without a backing has been used.

[0005]

In the conventional printer 1 as shown in FIG. 4, the partition plate is attached and detached in accordance with the width of the roll paper S. However, since the printer 1 is small, the partition plate is small. Is not easy.

If the partition plate is slidably provided and fixed by screws at arbitrary positions, the operation is complicated for the user who uses the roll paper S of a plurality of widths,
Screws and screw holes may deteriorate.

On the other hand, when the roll paper S is a linerless label roll, a glue surface may adhere to a member forming the paper transport path, and in that case, the label is not transported. For this reason, the motor may lose synchronism.

In the throw-in type roll paper storage unit 2, the side edge of the roll paper S is rubbed against the side plate 6.
When the roll paper S is a linerless label roll, the side edges of the linerless label roll are also sticky with glue, so that they do not easily slide on the side plate 6. Further, the glue is transferred from the side edge of the linerless label roll to the side plate 6, and the side plate 6
There is a disadvantage in that the side edge of the linerless label roll and the side plate 6 are more difficult to slide.

The side edge of the linerless label roll and the side plate 6
At this stage, we have responded to the problem of difficulty in sliding the head by increasing the force required to transport the label.However, a large drive source such as a motor hinders downsizing and weight reduction. However, power consumption also increases. In a printer driven by power supply from a battery, problems such as deterioration of battery life occur when power consumption increases.

In the throw-in type, when the roll paper S is pulled out, the outer peripheral surface of the roll paper S is rubbed against the surface of the concave portion 5 on which the roll paper S is placed or the inner surface of the open cover 4 covered with the roll paper S. If the roll paper S is a linerless label roll, the adhesive transferred from the adhesive surface to the printing surface when the roll paper is wound in a roll shape is a concave portion on which the linerless label roll is placed. 5 and the inner surface of the open cover 4, and the inside of the roll paper storage unit 2 becomes dirty.

An object of the present invention is to provide a printer which can easily cope with a change in roll paper width.

Another object of the present invention is to prevent the adhesive surface on the back side of the printing surface from sticking to the paper transport path when the roll paper is a linerless label roll.

A further object of the present invention is to suppress the transfer of glue from a side edge of the linerless label roll to a member for positioning the side edge when the roll paper is a linerless label roll.

Still another object of the present invention is to reduce the conveying force required to pull out a label when the roll paper is a linerless label roll.

According to the present invention, the outer peripheral surface of the roll paper is prevented from being damaged, and when the roll paper is a linerless label roll, the glue transferred from the glue surface to the printing surface is transferred to the roll paper storage section. The purpose is to eliminate retransfer to the inner surface.

[0016]

According to a first aspect of the present invention, there is provided a printer comprising: a main body case having a roll paper storage portion for storing roll paper in which long paper is wound in a roll shape; An open cover that is rotatably supported at one end to open and close the roll paper storage unit, a platen located at a predetermined position on the paper transport path in the main body case, and the roll paper storage unit. A print head attached to the open cover so as to face the platen via a paper transport path in a closed state, and a partition plate slidably provided in the roll paper storage section in the width direction of the roll paper. A plurality of the open covers are provided side by side in the paper width direction on a side facing the roll paper storage section,
A slide restricting portion that locks a leading end of the partition plate disposed at a position corresponding to various widths of the roll paper while the open cover closes one surface of the main body case to restrict slide of the partition plate; Is provided.

Therefore, the partition plate that regulates the position of the side edge of the roll paper so that the roll paper does not play in the roll paper storage unit can slide in the width direction of the roll paper when the open cover is opened. When the open cover is closed, the leading end of the partition plate is locked by the slide restricting member and the slide is restricted, so that the partition plate can be easily moved and fixed in accordance with the change in the width of the roll paper. .

According to a second aspect of the present invention, in the printer according to the first aspect, the inner wall of the roll paper storage unit and the partition plate facing the partition plate are fitted with the core of the roll paper. A roll paper holder for holding the roll paper is rotatably provided.

Therefore, even if the roll paper is a linerless label roll, the side edges of the roll paper do not directly rub against the partition plate or the inner wall, so that the adhesive does not transfer to the partition plate or the inner wall. In addition, since the center of the roll paper is kept at the same position, by adjusting the height of the center of the roll paper according to the maximum diameter of the roll paper that can be used, the outer peripheral surface of the roll paper can be kept in the roll paper storage section. Even if the roll paper is consumed and the diameter becomes smaller, the roll paper does not slosh in the roll paper storage unit, so that the glue surface is fixed to the inner surface of the roll paper storage unit and the paper transport path. Is difficult to stick to the member forming the.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a printer according to the present invention will be described with reference to FIGS. First, FIG.
2 is a right side longitudinal sectional view showing the structure of the printer 11 according to the present embodiment. In FIG. 1, an open cover 14 rotatably supported at one end by a main body case 13 having a roll paper storage unit 12 for storing the roll paper S is rotated to a position where the roll paper storage unit 12 is opened. FIG. 2 shows a state in which the roll paper storage unit 12 has the open cover 1.
4 shows a closed state.

As shown in FIG. 2, when the roll paper storage unit 12 is closed by the open cover 14,
3 and the open cover 14, the roll paper storage unit 1
A sheet transport path 15 is formed, which is a path through which the sheet pulled out from the roll paper S stored in the sheet 2 is transported.

In the main body case 13, a platen roller 16, which is a platen positioned on the paper transport path 15, is rotatably mounted. The axial direction of the platen roller 16 is parallel to the width direction of the roll paper S. As shown in FIG. 2, a thermal head 17 which is a print head facing the platen roller 16 via the paper transport path 15 in a state where the roll paper storage unit 12 is closed by the open cover 14.
Is attached to the surface of the open cover 14 on the roll paper storage unit 12 side. The thermal head 17 is urged by an urging member (not shown) so as to press against the platen roller 16. At the end of the paper transport path 15, a paper discharge port 18 for discharging the paper printed by the thermal head 17 is formed.

FIG. 3 is a front view showing the structure inside the roll paper storage section 12 with the main body case 13 and the open cover 14 as cross sections. In the roll paper storage unit 12, the roll paper S
Is provided with a partition plate 19 for positioning the position in the width direction of the roll paper S in accordance with the width of the roll paper S. The partition plate 19 is formed such that a plate surface 20 orthogonal to the axial direction of the roll paper S is erected on a plate-shaped base 21. The width of the base 21 in the direction orthogonal to the axial direction of the roll paper S is slightly larger than the width of the partition plate 19.

The bottom of the roll paper storage unit 12 has a recess 22
A guide groove 23 into which two sides along the axial direction of the roll paper S of the base 21 are formed on two opposing walls parallel to the width direction of the roll paper S among the side walls of the concave portion 22. ing. The guide groove 23 is formed along the axial direction of the roll paper S. When the base 21 slides in the guide groove 23, the partition plate 19 moves along the axial direction of the roll paper S.

A leaf spring 24 is attached to the bottom surface of the base 21. When the two sides of the base 21 are held in the guide grooves 23, the leaf spring 24 moves between the bottom surface of the recess 22 and the base 21. The base 21 is urged in the direction of separating the bottom surface of the concave portion 22 and the base 21 from each other in the formed gap.
Thereby, an appropriate frictional resistance when the partition plate 19 slides in the guide groove 23 is obtained, and the partition plate 19 can be easily positioned.

On each plate surface 20 of the partition plate 19, a roll paper holder 25 is detachably and rotatably attached to the plate surface 20. The roll paper holder 25 is also provided on the plate surface 20.
Is also detachably and rotatably attached to each side wall 26 of the roll paper storage unit 12 facing the roll paper storage unit 12. Roll paper holder 25
Is a pressing surface 2 for holding the roll paper S by sandwiching it from both sides.
7 and the roll paper S protruding from the center of the pressing surface 27.
And a shaft portion 29 having elasticity and attached to the plate surface 20 and the side wall 26. Since the shaft portion 29 has elasticity, the pressing surface 27
Is the plate surface 20 to which the roll paper holder 25 is attached.
Alternatively, it is freely movable toward and away from the side wall 26.

On the surface of the open cover 14 on the side of the roll paper storage section 12, a regulating plate 3 as a slide regulating section is provided.
In the width direction of the roll paper S, a plurality of 0s are protruded. The restricting plate 30 sandwiches the leading end of the partition plate 19 arranged at a position corresponding to various widths of the roll paper S between the adjacent restricting plates 30 with the open cover 14 closing the roll paper storage unit 12. Thereby, the slide of the partition plate 19 is regulated. In addition, the regulating plate 30 is formed thicker at the base connected to the open cover 14 and thinner at the leading end, so that even if the partitioning plate 19 is located at a position slightly deviated from the predetermined position, it is opened. The cover 14 can be guided to a predetermined position by closing the cover.

Here, in FIG. 3, the partition plate 1 in FIG.
9, a pair of roll paper holders 25 is provided in a space L on the left side of the partition plate 19, and a space R on the right side of the partition plate 19 in FIG. As shown, the roll paper holder 25 can be provided in the space R on the right side.

In such a configuration, when the roll paper S is set in the roll paper storage section 12, the partition plate 19 is slid according to the width of the roll paper S to hold the roll paper S in a pair of roll paper holding positions. It is sandwiched between the tools 25.

Next, the paper is pulled out from the roll paper S by an appropriate length, and the open cover 14 is closed. When the open cover 14 is closed, the leading end of the partition plate 19 is sandwiched between two adjacent regulating plates 30 and positioned and fixed.

When the open cover 14 is closed, the paper is sandwiched between the thermal head 17 and the platen roller 16.
Then, the sheet is conveyed by rotating and driving the platen roller 16, and a heating element included in the thermal head 17 generates heat, thereby printing a predetermined content on the sheet.

Further, in the printer 11 of the present embodiment,
The roll paper holder 25 can be attached to both the left and right spaces L and R, so that the two roll paper S
Can be printed simultaneously.

Further, in the printer 11 of the present embodiment, when the roll paper is not a linerless label roll, the roll paper holder 25 is detached from the partition plate 19 and the side wall 26, so that a throw-in type roll paper storage unit is provided. 1
2 can also be used. Even in that case, the partition plate 1
By positioning the roll paper 9 at a position where the side edge of the roll paper S is pressed, the roll paper S can be prevented from playing in the width direction.

According to the present embodiment, the partition plate 19 that is moved in accordance with the width of the roll paper S is slidable in the width direction of the roll paper S, and is positioned and fixed by closing the open cover 14. Therefore, when changing the width of the roll paper S, the position of the partition plate 19 can be easily changed and fixed.

Further, according to the present embodiment, since the roll paper S is held by the roll paper holder 25, even if the roll paper S is a linerless label roll, the glue surface of the label is 15, and the side edges of the roll paper S are separated from the partition plate 19 and the side wall 2.
6, the adhesive of the label does not transfer to the partition plate 19 or the side wall 26.

According to the present embodiment, since the roll paper S is held by the roll paper holder 25, the outer peripheral surface of the roll paper S is not rubbed against the roll paper storage unit 12, so that the roll paper S Prevents the outer peripheral surface from being scratched,
Further, when the roll paper S is a linerless label, it is possible to prevent the adhesive transferred from the adhesive surface to the printing surface from being transferred again to the inner surface of the roll paper storage unit 12.

In the present embodiment, the slide restricting portion is formed by a number of restricting plates 30. In the embodiment, for example, a number of grooves into which the ends of the partition plate 19 fit are formed in the open cover 14. It may be formed on the inner surface. Also in this case, the position of the groove is adjusted to the width of each roll paper.

[0038]

According to the first aspect of the present invention, the partition plate for regulating the position of the side edge of the roll paper in order to prevent the roll paper from playing inside the roll paper storage section has the open cover opened. In the state, the roll paper is slidable in the width direction, and the slide is regulated by closing the open cover, so that the partition plate can be easily moved and fixed according to the change in the width of the roll paper. It can easily respond to changes in paper width.

According to the second aspect of the present invention, even if the roll paper is a linerless label roll, the side edges of the roll paper do not directly rub against the partition plate or the inner wall.
Since the adhesive does not transfer to the partition plate or the inner wall and the center of the roll paper is kept at the same position, the height of the center of the roll paper must be adjusted according to the maximum diameter of the usable roll paper. Thereby, the outer peripheral surface of the roll paper is prevented from being rubbed against the inner surface of the roll paper storage portion, and therefore, when the roll paper is a linerless label roll, the label is wound into a roll and the printing surface is shifted from the glue surface. The glue transferred to the inner surface of the roll paper storage section does not re-transpose,
Even if the roll paper is consumed and the diameter is reduced, the roll paper does not slosh in the roll paper storage unit, so that the glue surface does not easily stick to the inner surface of the roll paper storage unit or a member forming the paper transport path.

[Brief description of the drawings]

FIG. 1 is a vertical right side view showing a structure of a printer according to an embodiment of the present invention and a state in which an open cover is rotated to a position where a roll paper storage unit is opened.

FIG. 2 is a vertical right side view showing a structure of the printer and a state in which a roll paper storage unit is closed by an open cover.

FIG. 3 is a front view showing a structure inside a roll paper storage section with a main body case and an open cover as cross sections.

FIG. 4 is a perspective view showing an example of a conventional printer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Printer 12 Roll paper storage part 13 Main body case 14 Open cover 15 Paper conveyance path 16 Platen roller 17 Thermal head 19 Partition plate 25 Roll paper holder 26 Inner wall of roll paper storage part 30 Slide restriction part S Roll paper

Claims (2)

[Claims] 1. A main body case including a roll paper storage portion for storing roll paper in which long paper is wound in a roll shape, and the roll paper storage portion having one end rotatably supported by the main body case. An open cover that opens and closes; a platen located at a predetermined position on the paper transport path and disposed in the main body case; and via the platen and the paper transport path when the roll paper storage unit is closed. A print head attached to the open cover so as to face, a partition plate slidably provided in the roll paper storage section in a width direction of the roll paper, and a print head facing the roll paper storage section of the open cover. Side of the partition plate disposed in a position corresponding to various widths of the roll paper in a state where the open cover closes one surface of the main body case. Printer including a sliding restricting portion locking the end by regulating the sliding of the partition plate, the. 2. A roll paper holder that fits on the core of the roll paper and holds the roll paper is rotatably mounted on the inner wall of the roll paper storage unit and the partition plate facing the partition plate. The printer according to claim 1, wherein the printer is provided.