JP2003160266A - Printer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a printer such as a taxi printer correcting the curliness of a roll paper sheet such as a receipt by printing the roll paper sheet. <P>SOLUTION: This printer is provided with a case 10 to which the roll paper sheet R1 is mounted; a printing head 60 for printing the roll paper sheet R1; and a roller 50 for pressing the roll paper sheet R1 to the printing head 60. The roller 50 is pressed to the outer side face R5 of the roll paper sheet R1, and the printing head 60 abuts on the inner side face R4 of the roll paper sheet R1 to print the roll paper sheet R1. The outer side face R5 of the roll paper sheet R1 is bent along the outer peripheral surface 50a of the roller 50 to correct the curliness of the roll paper sheet R1. A cover 20 for covering the roll paper sheet R1 is mounted to the case 10, and a guide part 27 with which the outer side face R5 of the roll paper sheet R1 comes in sliding contact is formed at the cover 20. A body R2 of the roll paper sheet R1 is rotated in a reverse direction to the rotating direction of the roller 50. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to, for example, a taxi printer used together with a taximeter, and relates to a printer in which curling curl of a roll paper is corrected by printing the roll paper. It is a thing.

[0002]

2. Description of the Related Art FIGS. 6 to 8 show one form of a conventional printer. The illustrated printer 501 is used as a taxi printer 501 that prints a date and fee on a receipt. This printer 501
The printer main body 502 and the cover 520 attached to the printer main body 502 are provided. The roll paper R501 shown in FIGS. 6 and 9 is the printer 501.
The cutter 570 (FIG. 6) provided in the above is used to cut and the cut paper piece is used as a receipt.

As shown in FIGS. 7 and 8, the printer main body 50
2, a case 510 including a front case 514, an inner case 516, and a back case 518; an opening 503 for loading the roll paper R501 (FIGS. 6 and 9) into the case 510; The roll paper storage unit 50 in which the roll paper R501 inserted from the opening 503 is mounted
4 and a holding portion 530 that supports the roll paper R501 by using a roll shaft 533, a so-called mandrel 533 (FIG. 6),
An optical sensor 540 for detecting that the roll paper R501 has been used up and the roll paper R501 has run out, and the roll paper R501
A printing unit 505 that prints on 501, and roll paper R501
Paper take-out section 506 provided with a cutter 570 for cutting off
(FIG. 6), and the printer 50 is pressed by pressing the operation button.
1, an operation unit 580 for operating the printer 501 by giving each instruction and various electronic parts (not shown) for controlling each operation of the printer 501 are attached,
In addition, a printed circuit board (not shown) on which a large number of circuit conductors (not shown) are arranged to connect various electronic components so as to be able to conduct electricity is provided.

As shown in FIGS. 6 to 8, the printing unit 505 provided in the printer main body 502 is provided with a print head 560 and a roller 550 for pressing a print sheet onto the print head 560.

The main body 524 forming the cover 520 has a front wall 524b and a pair of side walls 524a formed on both sides of the front wall 524b. Cover 520
An arcuate portion 524c having a substantially curved shape is formed on the front wall 524b corresponding to the main body R502 of the roll paper R501.

A space surrounded by the circular arc portion 524c of the front wall 524b and a pair of side walls 524a provided around the circular arc portion 524c serves as a roll paper accommodating portion 525 on the cover 520 side. Further, a pair of arms 523 is formed to extend from a side wall 524a of the main body 524 forming the cover 520, and a columnar support shaft 521 is projectingly provided at the tip of this arm 523. An arm means an arm.

A pair of side walls 5 forming the inner case 516.
An inner case in which the cover 520 having a pair of arms 523 is fitted in the printer main body 502 by fitting a cylindrical support shaft 521 of a pair of arms 523 projecting from the cover 520 into the cylindrical shaft hole 511 of 16a. 516 is attached.

Further, the mandrel 533 (FIG. 6) such as the roll shaft 533 is inserted into the hollow hole R503 of the main body R502 of the roll paper R501 shown in FIG. 9, and the main body R502 of the roll paper R501 shown in FIG. From the opening 503 of the printer body 502 shown in FIG.
Mounted inside the printer main body 502 and roll paper R50
1 is attached.

As shown in FIG. 9, the roll paper R501 is configured such that the inner side surface R505 of this elongated sheet is superposed on the outer side surface R504 of one elongated sheet.
The main body R502 of the roll paper R501 is formed by continuously winding the paper in a cylindrical shape. In this way, the main body R502 of the roll paper R501 is formed as a cylinder having the hollow hole R503. The roll paper R501 is formed such that the chemical surface for printing is the outer surface R504.

The roll paper R501 is the printer 501.
Now, the process of attaching to the printer and setting the printable state will be described. As shown in FIG. 6, roll paper R501
After the main body R502 of the roll paper R501 is attached to the inner case 516 by the mandrel 533, the main body R502 of the roll paper R501 is rotated in the same direction as the rotation direction of the clock hands, that is, in the clockwise direction in FIG. Case 516
R5 of the roll paper R501 toward the base wall 516b side of
06 (FIG. 9) is withdrawn.

Next, as shown in FIG. 6, while the outer surface R504 of the roll paper R501 is in sliding contact with the protruding step 516c provided on the inner case 516, the roll paper R501 is shielded by the optical sensor 540. As described above, the light is passed through the front side of the optical sensor 540. Then, the inner surface R50 of the roll paper R501
5 is brought into contact with the outer peripheral surface 550a of the roller 550, and the outer surface R504 of the roll paper R501 is connected to the print head 5
The roll paper R501 comes into contact with the sheet 60 and passes through the printing unit 505.

In this way, the leading edge R506 of the roll paper R501 is moved along the inclined portion 524f of the front wall 524b forming the cover 520 while being sandwiched between the print head 560 and the roller 550. Roll paper R501
From the paper exit 506 of the printer 501 to the printer 5
01 is sent to the outside.

Thereafter, with respect to the printer main body 502 to which the roll paper R501 is attached, the cover 520 is rotated downward about the support shaft 521 and the cover 520 is closed, so that the roll 520 is rolled as shown in FIG. The paper R501 is set in the printer 501 in a printable state.

In the longitudinal sectional view of the printer 501 shown in FIG. 6, the roller 550 forming the printing unit 505 is rotated clockwise while pressing the print head 560 via the roll paper R501, whereby the roller 550 is rotated. And long roll paper R50 sandwiched by the print head 560
1 will be sent toward the paper outlet 506 of the printer 501.

Along with this, a roll paper R5 formed by continuously winding a long paper in a cylindrical shape.
The main body R502 of 01 is also rotated clockwise. That is, the rotation direction of the roller 550 and the roll paper R
The main body R502 of 501 is rotated in the same direction.

Roll paper R set in printer 501
A state in which printing is performed on 501 will be described. Roller R5 is formed by roller 550 that constitutes printing unit 505.
01 is pressed toward the print head 560, and the roller 55
The roll paper R is rotated by the print head 560 while 0 is rotated.
Printing is performed on the outer side surface R 504 of the 501, and the roll paper R 501 is sent to the outside of the printer 501 from the paper ejection port 506 of the printer 501 by the rotation of the roller 550.

Then, the paper ejection port 50 of the printer 501
The long roll paper R501 sent out from the printer 501 to the outside of the printer 501 is brought into contact with the blade 571 of the cutter 570 and cut off to be a piece of paper, that is, a receipt. In this way, the taxi printer 501 issues a receipt.

[0018]

However, in the above-mentioned conventional taxi printer 501, it is difficult to see the date printed on the receipt and the contents of the charge due to the "curvy pattern" of the receipt issued by the taxi printer 501. There is a problem that the receipt is difficult to store in the wallet, and when the travel expense is cleared after getting on the taxi, it is difficult to attach the receipt to the travel expense clearing sheet.

In view of the above points, it is an object of the present invention to provide a printer in which the curl habit of a roll paper such as a receipt is corrected by printing the roll paper.

[0020]

In order to achieve the above object, a printer according to claim 1 of the present invention comprises a case to which roll paper is attached, a print head for printing on the roll paper, and the print head. Is provided with a roller for pressing the roll paper, the roller is pressed against the outer surface of the roll paper, and the print head is brought into contact with the inner surface of the roll paper to perform printing on the roll paper. It is characterized by With the above configuration, printing of the roll paper corrects the curl of the roll paper. In a conventional printer, due to the curled curl of the roll paper, for example, the contents printed on the roll paper are difficult to see, it is difficult to store the roll paper pieces, and the roll paper pieces are stuck to other things. There was a problem of difficulty. However, as the roll paper is printed and the curl habit of the roll paper is corrected, the problem in the conventional printer is solved.

A printer according to a second aspect is the printer according to the first aspect, wherein the outer side surface of the roll paper is bent along the outer peripheral surface of the roller to correct the curl habit of the roll paper. It is characterized by With the above configuration, the outer surface of the roll paper is bent along the outer peripheral surface of the roller, so that the roll paper is bent toward the inner surface thereof, and the roll paper is bent in the opposite direction. Becomes Therefore, the curl attached to the inner surface of the roll paper is further corrected.

A printer according to claim 3 is the printer according to claim 1 or 2, wherein a cover for covering the roll paper is attached to the case, and the outer surface of the roll paper is slidably contacted with the cover. It is characterized in that a part is formed. With the above configuration, the outer side surface of the roll paper is brought into sliding contact with the guide portion formed on the cover and bent along the guide portion. As a result, the roll paper that has been curved toward the inner side surface is bent toward the outer side surface of the roll paper in the opposite direction. Therefore, the curl attached to the inner side of the roll paper is further corrected. Further, vibration is applied to the printer, and this vibration causes looseness of the roll paper loaded in the printer, and when printing is performed on such roll paper, the roll paper is bent and the roll paper is bent. I was worried about wrinkles, but if the guide part on the outer surface of the roll paper is formed on the cover, the roll paper will be guided to the guide part. Occurrence of problems such as selfishness,
It will be prevented in advance.

The printer according to claim 4 is the printer according to claims 1 to 3.
In the printer according to any one of the items 1 to 3, the print head is a thermal head that is heated to a high temperature. With the above configuration, it is expected that the curving habit attached to the inner surface of the roll paper will be corrected by the heat of the thermal head even if only a little.

The printer according to claim 5 is the printer according to claims 1 to 4.
In the printer according to any one of items 1 to 3, the main body of the roll paper is rotated in a direction opposite to the rotation direction of the roller. With the above-described configuration, the main body of the roll paper may be attached to the printer so that the main body of the roll paper rotates in the opposite direction to the rotation direction of the roller. Therefore, the curl of the roll paper is corrected without making a great change in the quality of the roll paper or the design of the printer. Further, since no major design change of the printer is required, labor and cost associated with the change of the printer can be reduced.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a printer according to the present invention will be described in detail below with reference to the drawings. Figure 1
2 is a vertical sectional view showing an embodiment of a printer according to the present invention, FIG. 2 is a vertical sectional view showing a printer body and a cover,
FIG. 3 is a vertical cross-sectional view showing a state in which the cover is also attached to the printer body. Each vertical cross-sectional view shows a main part inside the printer body. Further, FIG. 4 is a perspective view showing a roll paper, and FIG. 5 is an explanatory view showing a state in which a printer is attached to an instrument panel of an automobile.

Next, each direction regarding the printer will be described. As shown in FIGS. 1 and 5, when the cover 20 that is attached to the printer body 2 so as to be openable and closable is closed with respect to the printer body 2, the side where the cover 20 is provided on the printer body 2 is referred to as the “front side”. The side provided with the back case 18 (FIG. 1) in the printer body 2 is referred to as the "rear side". Further, as shown in FIG. 1, the roll paper R1 is attached to the printer body 2.
The side to which the main body R2 is attached is referred to as "upper side", and the side where the printer unit 2 is provided with the printing unit 5 such as the print head 60 and the roller 50 is referred to as "lower side".

Further, as shown in FIG. 5, when the printer 1 is viewed from the front side, the front wall 14b of the front case 14 of the printer body 2 is shown.
In addition, the side provided with the round-shaped operation button 81 is referred to as “right side”, and the opposite side is referred to as “left side”. The “left-right width direction” referred to in this specification means the paper ejection unit 6 of the printer 1.
Means a direction along the horizontally long cutter 70 provided in the. In addition, "front and rear", "up and down" in this specification,
The definition of “right and left” is defined for convenience of description of each part, and does not necessarily match the direction of actual use in the printer.

The printer 1 shown in FIGS. 1 to 3 has the configuration shown in FIG.
As described above, the fare etc. displayed on the display part of the taximeter 200 is printed on the roll paper R1 (FIGS. 1 and 4) attached to the instrument panel 400 of the taxi, and the printed roll paper R1 is the cutter. 70 blades 71 (Fig. 1,
It is used as the taxi printer 1 which is cut out according to FIG. 5) and is issued as a receipt.

As shown in FIGS. 1 to 3 and 5, the taxi printer 1 includes a printer body 2 and a cover 20 attached to the printer body 2 so as to be openable and closable. The cover 20 is provided in the printer 1 to prevent the roll paper R1 from being contaminated by foreign matter such as dust and dust, and from being discolored by the sun rays including ultraviolet rays and infrared rays. Is.
In this way, the cover 20 is provided in the printer 1 to protect the roll paper R1, and thus such a cover 20 may be referred to as a roll cover.

As shown in FIG. 1, the printer 1 includes an inner case 16 to which the roll paper R1 is attached, and the roll paper R1.
1 and a print head 60 for printing on 1.
A roller 50 that presses the roll paper R1, the inner case 16, the print head 60, and a front case 14 and a back case 18 that cover the roller 50 are provided.

Then, the roller 50 is pressed against the outer side surface R5 of the roll paper R1, and the print head 60 is brought into contact with the inner side surface R4 of the roll paper R1. Printing is performed. In this way, the "curved habit" of the roll paper R1 is corrected by printing the roll paper R1, and thus the receipt with the "curved habit" corrected by the paper take-out section 6 of the printer 1. Will be issued.

The conventional taxi printer 5 shown in FIG.
In 01, due to the "curved curl" of the roll paper R501, it is difficult to see the date and fee content printed on the paper piece of the roll paper R501, that is, the receipt, it is difficult to store the receipt in the wallet, and the taxi ride There was a problem that the receipt was difficult to be pasted on the travel expense clearing sheet when the travel expense was cleared later.

On the other hand, in the printer 1 shown in FIG. 1, while the roll paper R1 is printed,
Since the "curved habit" of the roll paper R1 has been corrected, the "curved habit" is attached to the roll paper R501, which has been a problem in the conventional printer 501 (FIG. 6). The conventional printer 50
The problem that the receipt issued from 1 is difficult to handle has been resolved.

As shown in FIGS. 2 and 3, the printer main body 2
Is a synthetic resin case 10 including a front case 14, an inner case 16, and a back case 18, and an opening 3 for loading the roll paper R1 (FIGS. 1 and 4) into the case 10. And the roll paper R inserted from this opening 3
1, a roll paper storage unit 4 in which the roll paper R1 is mounted, a holding unit 30 that supports the roll paper R1, and an optical sensor 40 that detects that the roll paper R1 has been used up and the roll paper R1 has run out,
A printing unit 5 that prints on the roll paper R1, a paper take-out unit 6 (FIGS. 1 and 5) provided with a cutter 70 that cuts off the roll paper R1, and operation buttons 81 to 84 (FIG. 5) are pressed. As a result, an operation unit 80 for giving each instruction to the printer 1 to operate the printer 1 and various electronic parts (not shown) for controlling each operation of the printer 1 are attached, and various It is provided with a printed circuit board (not shown) on which many circuit conductors (not shown) that connect the electronic parts to each other so as to be able to conduct electricity are arranged.

A connector (not shown) is formed on the lower right side of the printer body 2, and the connector provided on the printer 1 and a mating connector (not shown) provided on a wire harness (not shown) are provided. By mating with (not shown), the printer 1 and other devices such as the taximeter 200 (FIG. 5) are electrically connected to each other.

As shown in FIGS. 1 to 3, the holding portion 30 for supporting the roll paper R1 is provided on the pair of side walls 16a forming the inner case 16 incorporated in the printer body 2. The holding unit 30 includes a support member 33 that axially supports the main body R2 of the roll paper R1. Support member 3
3 is a polyacetal resin (PO that has excellent mechanical strength, slidability, wear resistance, fatigue resistance, dimensional stability, and moldability).
(Abbreviated as M) is used.

Further, as shown in FIG. 1, the printing unit 5 includes a roller 5
0 and the print head 60. Roller 5
0 presses the roll paper R1 toward the print head 60, and the roller 50 is rotated while the print head 6 is being rotated.
Since the roll paper R1 is printed by 0, the roller 50 is important as a part of the printing unit 5. In addition, the print head 60 is
The printer unit is mounted on a printer unit (not shown) incorporated in the printer body 2.

In the printing unit 5 of the printer 1, the outer side surface R5 of the roll paper R1 is bent along the outer peripheral surface 50a of the roller 50 in the direction opposite to the direction that has been curved so far. The "curve habit" of the roll paper R1 is
It will be corrected. That is, the outer side surface R of the roll paper R1
5 is bent along the outer peripheral surface 50a of the roller 50 in an arc shape that is opposite to the direction in which the roller 50 has been curved, so that the curl 5 strongly bends toward the inner side surface R4 of the roll paper R1. The roll paper R1 marked with "" will be bent in the opposite direction. As a result, the "curved habit" attached to the inner side surface R4 of the roll paper R1 is further corrected.

The roller 50 is formed as a rubber-made cylindrical rotating roller 50 in which an appropriate restoring elastic force is easily expressed over a long period of time. Further, the rubber roller 50 is
The driving force of a small motor (not shown) is a gear (not shown)
It is transmitted and rotated by such as.

The print head 60 is a thermal head 60.
It functions as. The thermal head 60 may be called a thermal head or the like. In the thermal head 60,
A large number of minute heating resistors are arranged, and when an electric current is applied to the minute heating resistors in the portion corresponding to the content to be printed, the heating resistors instantly reach a high temperature of about 300 ° C. It will be heated. When the heat-sensitive paper such as the roll paper R1 is brought into contact with the heat-generating resistor in the heated portion, the heat-sensitive paper such as the roll paper R1 is discolored in black corresponding to the heat-generating resistor in the heated portion. Roll paper R1
Will be printed on.

As described above, the thermal head 60 is used as the print head 60 and printing is performed on the thermal paper such as the roll paper R1, so that the heat of the thermal head 60 directs the heat to the inner surface R4 of the roll paper R1. It is expected that the "curve habit" that was attached to it will be corrected even a little. A thin glass protective layer is provided on the surface of the heating resistor in order to prevent the heating resistor from being abraded by the thermal head 60 and the thermal paper such as the roll paper R1 rubbing against each other.

The front case 14 has operation buttons 81 to 84.
(FIG. 5) is a front wall 14b that constitutes the operation unit 80 in which they are arranged in parallel
And a peripheral wall 14a that forms the front case 14, and a housing portion 14c (FIGS. 1 to 3) surrounded by these walls,
The various types of equipment required for the functions of the printer 1 are assembled and stored. As shown in FIGS. 1 to 3, the inner case 1
6 is a base wall 16b, a pair of side walls 16a, and a protruding step portion 1
6c, and the portion surrounded by these plate-shaped walls is the roll paper accommodation unit 4. Also, the back case 18 is
A base board 18b and a peripheral wall 18a surrounding the base wall 18b are provided, and a printed circuit board (not shown) or the like is housed in a housing portion 18c formed by being surrounded by the base wall 18b and the peripheral wall 18a.

As shown in FIGS. 1 and 2, since the back case 18 is easily assembled to the front case 14, the guide collar 1 is provided at the peripheral edge of the opening of the peripheral wall 18a forming the back case 18.
8d is provided. In addition, a guide collar 18d provided on the peripheral edge of the opening of the peripheral wall 18a forming the back case 18
Corresponding to the above, a guide notch groove 14d is provided at the peripheral edge of the rear opening of the peripheral wall 14a forming the front case 14.

Then, the guide flange 18d provided on the peripheral edge of the opening of the peripheral wall 18a of the back case 18 is fitted into the guide notch groove 14d formed on the peripheral edge of the rear opening of the peripheral wall 14a of the front case 14. Thus, the front side case 14 and the back side case 18 can be fitted easily, quickly and accurately. Further, in this way, the various types of equipment required for the function of the printer 1 housed in the case 10 can be easily protected from foreign matter such as dust.

The case 10, such as the front case 14, the inner case 16 and the back case 18, is acrylonitrile butadiene styrene resin (abbreviated as ABS) which is excellent in rigidity, impact resistance, electric insulation, heat resistance, weather resistance and moldability. ) Is used. If an acrylonitrile butadiene styrene resin (ABS) is used to form the case 10 such as the front case 14, the inner case 16 and the back case 18, the case 1 of the printer body 2
0 is lightened. Moreover, even if an external force such as an impact is applied to the case 10, the case 10
Is durable and hard to break.

The four operation buttons 81 to 84 arranged on the front wall 14b of the front case 14 constituting the printer will be described with reference to FIG. Round operation button 81
Functions as an issuance button 81, and when the issuance button 81 is pressed, the roll paper R1 on which the fare or the like is printed is delivered from the paper ejection port 6 of the printer 1.

The operation button 82 functions as the ETC button 82. "ETC" is an abbreviation for "Electronic Toll Collection System", which means a non-stop automatic toll collection system.
"ETC" was developed for the purpose of eliminating the congestion of automobiles that has been a problem at toll gates on toll roads, improving convenience by making cashless, and reducing management costs. By using "ETC",
At the tollgate, the work that causes traffic congestion such as the payment of the toll after the car is stopped is saved, and the toll of the toll road is paid by wireless communication.

The operation button 83 is used as an unpaid button 83 or as a blank button 83 provided to send a signal to a device having another function to be developed in the future, a so-called spare empty button 83. It is something that will be done.

The operation button 84 functions as a FEED button 84, a so-called feed button 84, and is pressed when the roll paper R1 is replenished in the printer 1 or the like,
The roll paper R1 is used to feed the roll paper R1 from the paper ejection port 6 of the printer 1 in a state where printing is not performed.

Each of the operation buttons 81 to 84 is made of a polycarbonate resin (PC) which is excellent in optical properties such as transparency, shock resistance, electric insulation, heat resistance and molding processability.
(Abbreviated as)) is used.

In order to make the display contents drawn on the operation buttons 81 to 84 easy to see and to improve the aesthetics of the operation buttons 81 to 84, the operation buttons 81 to 81 formed of the transparent resin material are used. Operation button 81 corresponding to 84
Illumination lamp (not shown) on the rear side of ~ 84
A lighting device (not shown) such as Illumination means decorating with many lights.

Illumination lamps (not shown)
Is the front wall 1 of the front case 14 that constitutes the printer body 2.
A switch board (not shown) provided inside the rear side of 4b.
It is installed in. Further, a tact switch (not shown), which corresponds to each of the operation buttons 81 to 84 and sends an electric signal when pressed, is provided on the rear side of the operation buttons 81 to 84 together with the illumination lamp (not shown). , Is arranged on the switch substrate (not shown).

As shown in FIG. 2, the main body 2 forming the cover 20.
4 includes a front wall 24b and a pair of side walls 24a formed on both sides of the front wall 24b. Cover 20
The front wall 24b of the roll paper R1 has an arc portion 24c formed in a substantially curved shape corresponding to the main body R2 of the roll paper R1, and the arc portion 24c.
A flat plate portion 24d, a curved step portion 24e which is formed on the flat plate portion 24d and forms the sheet take-out portion 6, and a sheet take-out portion 6 which is extended and formed from the curved step portion 24e.
And a claw 24g provided at the tip of the inclined portion 24f.

Claw 24g provided at the tip of the inclined portion 24f
As shown in FIG. 1, when the roll paper R1 is replenished in the printer 1, when the leading end R6 of the roll paper R1 is sent to the outside of the printer 1 via the printing unit 5, the leading end R6 of the roll paper R1 is The inclined portion 2 forming the front wall 24b of the cover 20 in order to prevent the roller from being caught by the rotating roller 50.
It is provided at the tip of 4f.

Further, as shown in FIGS. 1 to 3, this cover 20 is used.
Includes a roller 50 included in the printing unit 5. The roller 50 is attached to the cover 20 via an attachment support portion 28 formed on the main body 24 of the cover 20. The arc portion 24 of the front wall 24b forming the cover 20
c and a pair of side walls 2 provided around the arc portion 24c
The space surrounded by 4a is the roll paper accommodation portion 25 on the cover 20 side.

The cover 20 and the holder 30 provided in the printer body 2 interfere with each other to prevent the printer body 2 from being closed. An arc-shaped escape portion 24h is provided on the pair of side walls 24a forming the above.

A body 24 forming the cover 20 so that the cover 20 can be easily and quickly attached to the printer body 2.
A pair of flexible arms 23 are formed to extend from side walls 24a of the flexible arm 23, and a bent portion 23b bent substantially at a right angle is formed at a substantially intermediate portion from the root 23a to the tip of the flexible arm 23.
Are formed. Further, a columnar support shaft 21 is projectingly provided at the tip of the flexible arm 23. This support shaft 21
Is formed toward the outside of the pair of flexible arms 23.

Further, between the support shaft 21 provided at the tip of the flexible arm 23 and the bent portion 23b provided at a substantially middle portion of the flexible arm 23, a columnar projection 22 is provided. Has been formed. As with the support shaft 21, the protrusion 22
Is also formed toward the outside of the pair of flexible arms 23. The flexible arm 2 of the cover 20 shown in FIG.
As shown in FIG. 3, the projecting portion 22 provided on the No. 3 is provided as the locking portion 22 that can be maintained in the state where the cover 20 is opened with respect to the case 10. The protrusion 22 provided on the flexible arm 23 has a protrusion height about half that of the support shaft 21 provided on the tip of the flexible arm 23. Is formed.

Further, as shown in FIGS. 1 to 3, "dents" are formed inside the pair of side walls 16a forming the inner case 16 corresponding to the protrusions 22 provided on the flexible arm 23 of the cover 20. 12 are provided. As shown in FIG. 2, this “dent” 12 is a pair of side walls 1 forming the inner case 16.
The sliding contact surface 12a provided parallel to the inner surface of 6a and the slanted sliding contact surface 12b continuing from this sliding contact surface 12a to the inner surface of the side wall 16a are provided, and as shown in FIG.
The cover 20 is provided as the engaging portion 12 that can be maintained in the opened state with respect to the case 10.

Since the cylindrical support shafts 21 facing outward are projected from the tips of the pair of flexible arms 23, the cylindrical shaft holes of the pair of side walls 16a forming the inner case 16 are formed. An inner case in which the cylindrical support shaft 21 of a pair of flexible arms 23 protruding from the cover 20 is fitted into the cover 11 and the cover 20 including the pair of flexible arms 23 is installed in the printer body 2 When attached to 16, the pair of flexible arms 23 projecting from the cover 20 are bent inward toward each other.

At this time, in order to prevent the pair of flexible arms 23 projecting from the cover 20 from being damaged from the root 23a, the inner case 16 is formed as shown in FIGS. The “dent portion” 12 provided inside the pair of side walls 16 a has a cylindrical support shaft 21 projecting from the tip of the flexible arm 23 of the cover 20 and the side wall 16 of the inner case 16.
It is formed also as a guide groove for guiding up to the cylindrical shaft hole 11 provided in a.

In this way, when the cylindrical support shaft 21 protruding from the tip of the flexible arm 23 of the cover 20 is fitted into the cylindrical shaft hole 11 provided in the side wall 16a of the inner case 16, , The cylindrical support shaft 21 of the flexible arm 23,
The side wall 16 of the inner case 16 passes through the inside of the “dented portion” 12 inside the pair of side walls 16 a forming the inner case 16.
If the cover 20 is inserted into the cylindrical shaft hole 11a of FIG.
It is easy and quick to install.

The roll paper R1 shown in FIG. 4 is loaded into the roll paper accommodating section 4 through the opening 3 of the printer body 2 shown in FIG.
Is installed. Thereafter, with respect to the printer body 2 to which the roll paper R1 is attached, the cover 20 is rotated downward about the support shaft 21 and the cover 20 is closed. The work of mounting the roll paper R1 is completed.

The cover 20, which is attached to the printer body 2 so as to be openable and closable, has a pair of flexible arms 2 that form the cover 20 when the cover 20 is closed with respect to the printer body 2.
Since the protrusion 22 is provided toward the outside of the printer 3, the tip of the protrusion 22 and the inner surfaces of the pair of side walls 16a forming the inner case 16 inside the printer body 2 are brought into contact with each other. The Rukoto.

From this, in the state where the cover 20 that is openably and closably attached to the printer main body 2 is closed with respect to the printer main body 2, the pair of flexible arms 23 projecting from the cover 20 are separated from each other. The cover 20 is kept in a closed state with respect to the printer main body 2 in a state in which the cover 20 is slightly bent inward, and thereby the restoring elastic force is exerted on the pair of flexible arms 23 ( (Fig. 1).

In such a state, the cover 20 is closed with respect to the printer main body 2, but the projection 22 projecting from the flexible arm 23 has the projection 22 of the flexible arm 23. Since the protrusion height of the support shaft 21 is about half of the protrusion height of the support shaft 21 protruding from the tip end, the support shaft 21 protrudes outside the tip ends of the pair of flexible arms 23. The support shaft 21 is installed from the shaft holes 11 of the pair of side walls 16a forming the inner case 16 of the printer body 2,
It doesn't come off carelessly.

Inner case 1 installed inside the printer body 2
Since the support shaft 21 of the flexible arm 23 provided on the cover 20 is not easily disengaged from the shaft hole 11 of the side wall 16a of No. 6, it is provided so as to project toward the outside of the pair of flexible arms 23. The protruding portion 22 is formed to have a protruding height which is about half or less than the protruding height of the support shaft 21 provided outside the tip of the flexible arm 23. Is preferred.

When the cover 20 is opened with respect to the printer body 2, the printer body 2 shown in FIG.
By rotating the cover 20 upward with respect to the support shaft 21, the cover 20 is rotated with respect to the printer body 2 as shown in FIG.
Will be opened. At that time, the projections 22 of the pair of flexible arms 23 projectingly provided on the cover 20 due to the restoring elastic force contained in the pair of flexible arms 23.
Will be fitted into the "dented portions" 12 of the pair of side walls 16a forming the inner case 16 incorporated in the printer body 2. As a result, with respect to the printer body 2, the cover 20 is maintained in a state of being opened upward.

When the cover 20 is closed again with respect to the printer main body 2, as described above, the cover 20 is rotated downward with respect to the printer main body 2 about the support shaft 21. As shown in FIG.
Will be closed.

When the cover 20 rotatably attached to the printer body 2 is closed with respect to the printer body 2, the remaining amount of the roll paper R1 loaded in the printer 1 can be easily confirmed. In order to prevent the photosensor 40 installed in the printer body 2 from being hypersensitive to sunlight, and to prevent the roll paper R1 from being discolored by the sun rays including ultraviolet rays and infrared rays. The cover 20 is formed by using a black semitransparent flexible synthetic resin material.

As a base material of such a flexible synthetic resin,
For example, a polycarbonate resin (PC) may be mentioned, and the cover 20 shown in FIGS. 1 to 3 is formed by using a polycarbonate resin (PC) to which a black colorant is added. Polycarbonate resin (PC) is
As mentioned above, it has excellent optical properties such as transparency.
It has excellent impact resistance, electrical insulation, heat resistance, and moldability.

Examples of black colorants include carbon powder. Polycarbonate resin (PC)
Carbon-based powder was used as the black colorant added to, and specifically, carbon black excellent in light resistance, colorability, thermal stability, and weather resistance was used. Carbon black also serves as a stabilizer and is inexpensive. Further, a combination of carbon black mixed with a polycarbonate resin (PC) is also a preferable combination that does not adversely affect the resin molded body.

The cover 20 attached to the printer body 2 in an openable and closable manner is a side wall 24a of the cover 20 which is semi-transparent to the black when the cover 20 is closed with respect to the printer body 2.
From the side, the remaining amount of the roll paper R1 mounted on the printer 1 can be checked easily and quickly at a glance, so that the pair of side walls 24a forming the cover 20 is formed.
Is thinner than the thickness of the front wall 24b forming the cover 20.

As a result, the cover 2 which is semi-transparent to the black color
The transparency of the pair of side walls 24a forming the
Is higher than the transparency of the front wall 24b forming the
A cover 20 attached to the printer body 2 so as to be openable and closable
However, in the state in which the printer body 2 is closed,
From the side wall 24a side of the cover 20, the remaining amount of the roll paper R1 located inside the cover 20 can be seen through and clearly seen.

In order to easily confirm the remaining amount of the roll paper R1 mounted on the printer 1, for example,
It is also conceivable to reduce the filling amount of the black colorant added to the synthetic resin to form a black semitransparent cover in which the light transmittance of the entire cover is increased. However, with such a cover, since the light transmittance is increased, the optical sensor 4 installed in the printer body 2 is
0 is apt to be sensitized by sunlight, which may cause malfunction of the printer, and may cause discoloration of the roll paper R1 by sunlight such as ultraviolet rays and infrared rays. .

On the other hand, in the cover 20 of the printer 1 shown in FIGS. 1 to 3, the front wall 24b forming the cover 20 has the same thickness as before,
Since the thickness of the pair of side walls 24a forming the cover 20 is thinner than the thickness of the front wall 24b forming the cover 20, the optical sensor 40 based on sunlight is used.
It is possible to prevent the malfunction of the roll paper R1 and the roll paper R1 from being discolored by the sun rays.
The mechanical strength of the printer 1 is not significantly reduced, and the printer 1 is installed from the side wall 24a side of the cover 20 in the closed state.
The remaining amount of the roll paper R1 mounted on the sheet can be confirmed easily and quickly at a glance.

As shown in FIG. 4, the roll paper R1 is formed such that the inner surface R4 of the long sheet is superposed on the outer surface R5 of the single long sheet of paper. The main body R of the roll paper R1 is wound continuously in a cylindrical shape.
2 is formed. In this way, the main body R2 of the roll paper R1 is formed as a cylinder having the hollow hole R3. The roll paper R1 is formed such that the chemical surface for printing is the inner surface R4.

The process of mounting the roll paper R1 on the printer 1 and setting it in a printable state will be described. The roll paper R1 shown in FIG. 4 is loaded into the roll paper container 4 from the opening 3 of the printer body 2 shown in FIG. 3, and the roll paper R1 is attached to the printer body 2. At that time, as shown in FIG. 1, the hollow hole R3 provided in the main body R2 of the roll paper R1 is fitted into the support member 33 that constitutes the holding portion 30 provided in the pair of side walls 16a of the inner case 16, The main body R2 of the roll paper R1 is attached to the inner case 16 incorporated in the printer main body 2.

Next, in FIG. 1, the main body R2 of the roll paper R1 is rotated in the direction opposite to the direction of rotation of the hands of the clock, that is, in the counterclockwise direction, and the roll paper is directed toward the front wall 24b of the cover 20. The tip R6 of R1 (FIG. 4) is pulled out.

Then, the roll paper R1 is detected by the optical sensor 40.
(FIG. 1) is passed through the front side of the optical sensor 40 so as to be shielded from light. The optical sensor 40 is used as a sheet detecting unit. Thereafter, the outer surface R5 of the roll paper R1 is brought into contact with the outer peripheral surface 50a of the roller 50, and the roll paper R1
The inner surface R4 of No. 1 is brought into contact with the print head 60, and the roll paper R1 passes through the printing unit 5.

At this time, the "curved habit" attached to the inner side surface R4 of the roll paper R1 is substantially corrected. In this way, the long roll paper R1
While being sandwiched between the print head 60 and the roller 50, it is moved in a substantially flat shape toward the blade 71 of the cutter 70 that cuts it off, and the front end R6 of the roll paper R1 is moved to the printer 1.
The sheet is taken out of the printer 1 through the paper take-out port 6.

Thereafter, with respect to the printer main body 2 to which the roll paper R1 is attached, the cover 20 is rotated downward about the support shaft 21 and the cover 20 is closed, so that the roll 20 is rolled as shown in FIG. The paper R1 is set in the printer 1 in a printable state.

In order that the roll paper R1 can be attached to the printer body 2 easily and quickly, as shown in FIG. 1, a hollow hole R3 provided in the body R2 of the roll paper R1 and the roll paper R1.
A gap is provided between the printer main body 2 and the support member 33 that supports the printer. However, due to the provision of the gap, the roll paper R1 is in a state where “center misalignment” occurs, and the support member 3 that constitutes the holding unit 30.
3 will be pivotally supported.

Also in the conventional printer 501 shown in FIG. 6, the hollow hole R503 provided in the main body R502 of the roll paper R501 and the mandrel 5 for supporting the roll paper R501.
Since there is a gap between it and 33, the roll paper R
The core 501 is supported by the mandrel 533 in a state where “center misalignment” occurs.

When the new roll paper R501 is installed in the printer 501 and the cover 520 is closed with respect to the printer body 502 in such a state, the front wall 524 forming the main body 524 of the cover 520.
The inner side surface of the circular arc portion 524c of b and the outer side surface R504 of the main body R502 of the roll paper R501 are brought into sliding contact with each other, which causes large friction between the rollers 550 and the small size for driving the roller 550. A large load is applied to the motor (not shown) and the gear (not shown).

On the other hand, in the printer 1 shown in FIGS. 1 to 3, a plurality of sliding contact ribs 26 are provided on the arc portion 24c of the front wall 24b forming the main body 24 of the cover 20. The plurality of sliding contact ribs 26 are provided along the circular arc portion 24c of the cover 20 so as to project inside the circular arc portion 24c. The plurality of sliding contact ribs 26 are arranged inside the arcuate portion 24c of the cover 20 side by side along the left-right width direction at intervals.

As described above with reference to FIG. 5, "left-right width direction"
Means the direction along the horizontally long cutter 70 provided in the paper ejection unit 6 of the printer 1. That is, in FIGS. 1 to 3, the left-right width direction of the printer 1 is the hollow hole R3 of the main body R2 of the roll paper R1 attached to the printer 1.
1 to 3, it means the direction from the back side to the front side or the direction from the front side to the back side in FIGS. 1 to 3.

Further, the plurality of sliding contact ribs 26 and the roll paper R
The plurality of sliding contact ribs 26 provided on the cover 20 serve as gentle curved portions so that the roll paper R1 is not scratched by the plurality of sliding contact ribs 26 when they are rubbed with each other. It is formed so as to project from the formed start end 26a to the end 26b formed as a gentle curved portion along the arcuate portion 24c of the cover 20.

As shown in FIG. 1, when a new roll paper R1 is mounted on the printer 1, the outer surface R5 of the main body R2 forming the roll paper R1 and the arc portion 24c of the cover 20 are formed.
While rubbing against the sliding contact ribs 26 protruding inside the
The roll paper R1 will be rotated. A plurality of sliding contact ribs 26 projecting inside the arc portion 24c of the cover 20,
Since the contact area with the outer side surface R5 of the main body R2 forming the roll paper R1 is small, the friction when the two are in sliding contact is also small, and the load applied to the roller 50 and the roller 5
The load applied to a small motor (not shown) and a gear (not shown) for driving 0 is negligible.

Further, as shown in FIGS. 1 to 3, a plurality of guide ribs 27 are provided on the flat plate portion 24d of the front wall 24b forming the main body 24 of the cover 20. The plurality of guide ribs 27 project from the flat plate portion 24d of the cover 20 toward the inside of the cover 20 at a substantially right angle.

The plurality of guide ribs 27 are arranged side by side along the horizontal direction of the flat plate portion 24d of the cover 20 at intervals. Between the plurality of guide ribs 27, the plurality of guide ribs 2 are connected to each other.
A reinforcing plate 27c for improving the strength of No. 7 is provided along the lateral width direction of the cover 20 so as to project from the flat plate portion 24d of the cover 20 toward the inside of the cover 20 at a substantially right angle.

As shown in FIG. 1, when the plurality of guide ribs 27 and the roll paper R1 are brought into sliding contact with each other, the plurality of guide ribs 27 are formed.
Since the roll paper R1 is not scratched by the corner portions 27a and 27b of the guide rib 27, the corner portions 2 of the plurality of guide ribs 27 projecting from the flat plate portion 24d of the cover 20 are provided.
7a and 27b are formed as gentle curved portions.

A plurality of guide ribs 2 having such a shape
7 protrudes from the flat plate portion 24d of the cover 20 toward the inside of the cover 20 at a substantially right angle, and a plurality of guide ribs provided on the cover 20 when the cover 20 is closed with respect to the printer body 2. In the printer 1 in which the roll paper R1 and the roll paper R1 are in sliding contact with each other, when the roll paper R1 is printed, the roll paper R1 is guided by the guide ribs 27, so that the roll paper R1 is bent. The occurrence of a problem such as "wrinkle" on the roll paper R1 due to being damaged or the like is prevented in advance.

More specifically, while the vehicle is running, vibration is applied to the taxi printer 501 of FIG. 6 attached to the vehicle, and this vibration causes
The roll paper R501 mounted in the printer 501 is loosened, and the roll paper R501 is not supported by the roller 550.
And the roll head R501 that passes through the printing unit 505 when printing is performed by being sandwiched by the print head 560.
However, the roll paper R501 is unevenly sandwiched between the roller 550 and the print head 560, and therefore the roll paper R501 may be bent, causing a problem such as “wrinkle” on the roll paper R501. Was there.

However, as shown in FIGS. 2 and 3, the plurality of guide ribs 27 form the flat plate portion 24d of the cover 20.
From the inside to the inside of the cover 20 at a substantially right angle, and as shown in FIG. 1, when the cover 20 is closed with respect to the printer body 2, a plurality of guide ribs 27 provided on the cover 20 and rolls are provided. If the printer 1 is in sliding contact with the paper R1, the roll paper R1 will be guided by the guide ribs 27, so that the occurrence of the above-mentioned problems can be prevented.

Case 1 which constitutes the printer main body 2
0, a cover 20 for covering the roll paper R1 is attached, and a plurality of guide ribs 27 with which the outer surface R5 of the roll paper R1 is slidably contacted are formed on the cover 20. When the guide ribs 27 provided on the cover 20 and the outer surface R5 of the roll paper R1 are brought into sliding contact with each other when closed, the outer surface R5 of the roll paper R1 is formed on the cover 20. The curved corner portions 27 a of the guide ribs 27 are slidably contacted with the curved corner portions 27 a of the plurality of guide ribs 27.
It will be bent along a.

As a result, the roll paper R1 that has been curved toward the inner side surface R4 is bent toward the outer side surface R5 of the roll paper R1 in the opposite direction.
Therefore, the "curved habit" attached to the inner side surface R4 of the roll paper R1 is further corrected.

As shown in FIG. 1, the main body R of the roll paper R1 supported by the holding portion 30 of the printer main body 2 with respect to the rotation direction of the roller 50 constituting the printing unit 5 provided in the printer 1.
2 is rotated in the opposite direction.

More specifically, in the longitudinal sectional view of the printer 1 shown in FIG. 1, the roller 50 forming the printing unit 5 rotates clockwise while pressing the print head 60 via the roll paper R1. As a result, the roller 50
And a long roll paper R sandwiched between the print head 60 and the print head 60.
1 will be sent toward the paper exit 6 of the printer 1.

Along with this, a roll paper R1 formed by continuously winding a long paper in a cylindrical shape.
The main body R2 of will be rotated counterclockwise. That is, the rotation direction of the roller 50 and the rotation direction of the main body R2 of the roll paper R1 are opposite to each other.

In order to do so, the printer 1 is provided with the main body R2 of the roll paper R1 so that the main body R2 of the roll paper R1 is rotated in the opposite direction to the rotation direction of the roller 50.
Should be installed. Therefore, the quality of the roll paper R1
The "curved curl" of the roll paper R1 is corrected without making a large design change of the printer 1. Further, since no major design change of the printer 1 is required, labor and cost associated with the change of the printer 1 can be reduced.

The state in which the roll paper R1 set in the printer 1 is printed will be described with reference to FIGS. The issue button 81 of the printer 1 shown in FIG. 5 is pressed. Along with this, a tact switch (not shown) abutted on the back side of the issue button 81 is pressed, and an electric signal is sent by this, and the signal is processed in each electric circuit. After that, a small motor (not shown) built in the printer 1 is driven to drive the roller 5 shown in FIG.
0 is rotated.

As shown in FIG. 1, the roll paper R1 is pressed toward the print head 60 by the roller 50 attached to the cover 20, and the print head 6 is rotated while the roller 50 is rotated.
Printing is performed on the inner surface R4 of the roll paper R1 by 0, and the rotation of the roller 50 causes the roll paper R1 to be delivered from the paper ejection port 6 of the printer 1 to the outside of the printer 1.

Then, the long roll paper R1 sent out from the paper take-out port 6 of the printer 1 to the outside of the printer 1.
Is made into a piece of paper, that is, a receipt by coming into contact with the blade 71 of the cutter 70 and being cut off. In this way
A receipt is issued from the taxi printer 1.

Compared to the roll paper R501 printed by the conventional printer 501 shown in FIG. 6, the roll paper R1 printed by the printer 1 of the present invention has a "curved curl" corrected as illustrated in FIG. It has been done. As described above, the receipt issued by using the taxi printer 1 of the present invention is a conventional taxi printer 50.
Compared to the receipt issued when 1 is used, the “curved habit” is corrected.

An instrument panel 400 to which the printer 1 is attached will be described with reference to FIG. An instrument refers to an instrument, and a panel means a control panel. Therefore, an instrument panel refers to an instrument panel. The instrument panel is also called a dashboard or dash panel. Also,
The instrument panel is often abbreviated as "instrument panel".

Most of the instrument panels are formed as molded articles made of synthetic resin.
In addition, the instrument panel includes not only a portion for accommodating meters and switches but also a portion for accommodating an audio system and an air conditioner unit. In order to make it easier to absorb impacts and the like, an instrument panel is composed of a plurality of layers such as a core material covered with a pad, and such an instrument panel is often used as an instrument panel.

Instrument panel 4 shown in FIG.
00 is the meter mounting portion 4 to which the meter unit is assembled
10, a central mounting portion 430 for accommodating the center cluster unit 300, a cover 450 for covering the accommodating portion for accommodating the airbag unit, and the like. The center cluster unit 300 also includes an air conditioner air outlet 310 to which fins for flow rate adjustment are attached, a car radio 330, a car stereo 350, and the like.

Such an instrument panel 400
In addition, since the taxi meter 200 having the display unit is provided, the taxi driver and the passengers of the taxi can easily recognize the contents of the fare during or after traveling at a glance. In addition, the taximeter 200
At the same time, since the taxi printer 1 is provided on the instrument panel 400, the taxi driver charges the passengers a fee equivalent to the fare and receives the taxi. Issuing a receipt proving that the driver has been paid will be easy and quick.

The printer according to the present invention has been described by taking the vertical taxi printer 1 for printing the fare displayed on the taximeter 200 (FIG. 5) as an example. Not only the taxi printer 1 including the 60, but also a vertical printer, a horizontal printer, or a printer of another printing method,
The printer of the present invention can be applied to any form of printer.

[0111]

As described above, according to the first aspect of the present invention, the curl pattern of the roll paper can be corrected by printing the roll paper. In a conventional printer, due to the curled curl of the roll paper, for example, the contents printed on the roll paper are difficult to see, it is difficult to store the roll paper pieces, and the roll paper pieces are stuck to other things. There was a problem of difficulty. However, by printing on the roll paper, the curl of the roll paper can be corrected, so that the problem in the conventional printer can be solved.

According to the second aspect of the present invention, the outer surface of the roll paper is bent along the outer peripheral surface of the roller, which is opposite to the roll paper curved toward the inner surface thereof. The roll paper will be bent in the direction of. Therefore, the curl attached to the inner surface of the roll paper is further corrected.

According to the third aspect of the present invention, the outer side surface of the roll paper is brought into sliding contact with the guide portion formed on the cover and bent along the guide portion. As a result, the roll paper that has been curved toward the inner side surface is bent toward the outer side surface of the roll paper in the opposite direction. Therefore, the curl attached to the inner side of the roll paper is further corrected. Further, vibration is applied to the printer, and this vibration causes looseness of the roll paper loaded in the printer, and when printing is performed on such roll paper, the roll paper is bent and the roll paper is bent. I was worried about wrinkles. However, if a guide portion is formed on the cover so that the outer surface of the roll paper is slidably contacted, the roll paper will be guided by the guide portion. Will be prevented.

According to the fourth aspect of the invention, the curving habit attached to the inner surface of the roll paper is corrected by the heat of the heat-sensitive head even a little.

According to the fifth aspect of the present invention, the main body of the roll paper may be attached to the printer so that the main body of the roll paper is rotated in the opposite direction to the rotation direction of the roller. Therefore, the curl of the roll paper can be corrected without making a great change in the quality of the roll paper or the design of the printer. Further, since no major design change of the printer is required, it is possible to reduce the labor and cost associated with the change of the printer.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of a printer according to the present invention.

FIG. 2 is a vertical cross-sectional view showing a printer body and a cover.

FIG. 3 is a vertical sectional view showing a state where a cover is attached to the printer body.

FIG. 4 is a perspective view showing a roll paper.

FIG. 5 is an explanatory diagram showing a state in which a printer is attached to an instrument panel of an automobile.

FIG. 6 is a vertical cross-sectional view showing one form of a conventional printer.

FIG. 7 is a vertical cross-sectional view showing a conventional printer body and cover.

FIG. 8 is a vertical sectional view showing a state in which a cover is attached to a conventional printer body.

FIG. 9 is a perspective view showing a roll paper.

[Explanation of symbols]

1 printer (taxi printer) 10 cases 14 front case 16 inner case 18 back case 20 cover 27 Guide rib (guide part) Fifty rollers 50a outer peripheral surface 60 print head (thermal head) R1 roll paper R2 body R4 inner surface R5 outer surface

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 2C060 BA03 BC02 BC12 BC42 BC46                       BC84                 2C065 AA01 AB01 AD07 CZ06                 3F103 AA02 BA04                 3F104 AA02 FA19 HA02 HA14

Claims (5)

[Claims] 1. A roll paper is attached to the case, a print head for printing on the roll paper, and a roller for pressing the roll paper against the print head are provided, and the roller is pressed against the outer surface of the roll paper. At the same time, the printer head is brought into contact with the inner surface of the roll paper to perform printing on the roll paper. 2. The printer according to claim 1, wherein the outer side surface of the roll paper is bent along the outer peripheral surface of the roller to correct the curl habit of the roll paper. 3. A cover for covering the roll paper is attached to the case, and a guide portion with which the outer side surface of the roll paper is slidably contacted is formed on the cover. Printer. 4. The printer according to claim 1, wherein the print head is a thermal head that is heated to a high temperature. 5. The printer according to claim 1, wherein the main body of the roll paper is rotated in a direction opposite to the rotation direction of the roller.