JP2004306356A - Printer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a restaurant printer having a structure for eliminating paper feed failures or bending of right and left end faces caused by a slack of a thermal rolled sheet influenced by setting performance, by reducing a paper load of the thermal rolled sheet in a restaurant printer which uses a printer module in which a thermal head and a platen roller are separated from each other. <P>SOLUTION: The restaurant printer has a shaft unit set at the side of a front door for replacement of the thermal rolled sheet. The shaft unit becomes movable by the weight of the thermal rolled sheet itself, so that the restaurant printer is made compact. The shaft unit is set at the front door inside which is a part easy to visually recognize, and therefore the shaft unit is superior in the replacement workability. Moreover, the shaft unit is equipped with a shaft which penetrates the center of the stable thermal rolled sheet to automatically eliminate the slack by starting printing even when the thermal rolled sheet becomes slack at the time of setting. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention, for example, in a restaurant (restaurant, izakaya, fast food, etc.), a printer for cooking instruction slip output that prints out the order contents from the customer as a cooking instruction slip to the cook, More particularly, the present invention relates to a storage structure for recording paper stored in the printer.
[0002]
[Prior art]
Conventionally, wireless order data management devices are used in restaurants, pubs, hotels, and the like. An example of a wireless order data management apparatus will be described briefly. When a customer service representative receives a food order from a customer, each menu that has been ordered together with a table number and the like is input to a portable order input apparatus.
[0003]
The input order data is wirelessly transmitted from the order input device. The wirelessly transmitted order data is received by a wireless control device installed at each corner or the like in the store, and is output to a data management device that performs various data processing, centralized management, and the like. In the data management device, information such as the order data, a time when the order data is received, and a number for identifying a customer service representative are stored in a storage device.
[0004]
Then, a voucher for cooking instructions is printed out from a restaurant printer installed in the kitchen, and a cooking instruction is sent to the person in charge of cooking. On the other hand, a bill for accounting is printed out from another restaurant printer installed in the vicinity of the guest room, and this is handed to the customer by the customer service representative.
[0005]
The person in charge of cooking starts cooking according to the cooking instruction slip, and notifies the customer service representative when cooking is completed. Thereby, the customer service representative carries the cooking to the customer who has received the order and distributes it. (For example, refer nonpatent literature 1.)
Some of these restaurant printers use wireless or wired communication means as described above, and the cooking instruction slip restaurant printer that prints out the cooking instruction slip prints out the accounting slip as well. The accounting slip restaurant printer is basically the same in structure, and the only difference is the electrical control circuit that controls the printing contents so that the printing contents are output according to the application.
[0006]
Hereinafter, a wireless restaurant printer will be described as an example.
[0007]
FIG. 5 is a structural diagram schematically showing the internal structure of a conventional restaurant printer. As shown in this figure, these restaurant printers 40 are equipped with a wireless unit 419 as a communication means, and a printing part is provided with a printer module 430 having a thermal head.
[0008]
The printer module 430 presses the platen roller 407 against the thermal head 406 by opening the replacement door 411 when the roll-shaped thermal roll paper 402 is stored in the roll paper storage unit 431 as described below. It has a platen roller detachable structure that opens the state. The thermal printer module 430 is also equipped with an auto cutter 404 that cuts the printed portion to an optimum length without extra margin.
[0009]
In terms of arrangement, there is a thermal printer module 430 having a thermal head 406 for printing on the upper side of the thermal roll paper stored in the roll paper storage section 431, and the thermal printer module 430 has the thermal discharge module 430 near the paper discharge port 405. The auto cutter 404 is attached. In this auto cutter 404, a shearing type movable blade 408 for cutting perpendicularly to the traveling direction of the thermal roll paper 402 comes down almost vertically from the upper side of the thermal roll paper 402, and below the thermal roll paper 402. It is structured to cut by engaging with the fixed blade 409 that is positioned.
[0010]
The paper discharge port and the thermal roll paper replacement door 411 printed and cut have a structure located in the front part of the restaurant printer. The replacement door 411 is the lowermost front part of the restaurant printer main body. The hinge part 412 is connected to be openable and closable. A platen roller 407 that presses the thermal head 406 during printing and a fixed blade 409 of an auto cutter 404 that cuts the printed portion to an optimum length without extra margin are attached to the inside of the replacement door 411. It has been.
[0011]
Therefore, when the replacement roll 411 is opened when the thermal roll paper or the like is replaced, the thermal head 406 and the platen roller 407 are moved from the state where the thermal roll paper 402 is printed while being sandwiched between the thermal head 406 and the platen roller 407. As a result, the thermal paper transport path of the auto cutter 404 that cuts the printed thermal paper into an optimum length is completely opened.
[0012]
This is because the printer module 430 having the thermal head 406 is separated from the thermal head 406 attached to the restaurant printer main body side and the platen roller 407 attached to the replacement door 411 side. This is because the movable blade 408 of the auto cutter 404 attached to the main body side and the fixed blade 409 attached to the replacement door 411 side are separable.
[0013]
Therefore, the thermal roll paper 402 is replaced by opening the replacement door 411 and placing the thermal roll paper 402 in the roll paper storage section 431 provided at the lower part of the printer module 430 having the thermal head 406 on the restaurant printer main body side. When the replacement door 411 is closed, the replacement door 411 is closed by pulling out the leading portion of the thermal roll paper 402 from the discharge port 405 to a sufficient length (the first portion where the thermal roll paper is used). .
[0014]
By closing the replacement door 411, the platen roller 407 attached to the replacement door 411 presses the thermal head 406 attached to the restaurant printer main body side, and printing is possible. Similarly, the movable blade 408 of the auto cutter 404 attached to the restaurant printer main body side and the fixed blade 409 attached to the replacement door 411 side are also composed of a movable blade and a fixed blade which are the basic structure of a normal shearing type auto cutter. The positional relationship is established, and the heat-sensitive roll paper 402 can be cut to an appropriate length.
[0015]
Accordingly, when printing, the thermal roll paper 402 is conveyed by the rotation of the platen roller 407. When the heat-sensitive roll paper 402 is conveyed in the direction of the discharge port 405, the heat-sensitive roll paper 402 wound in a roll shape rotates so that the outer periphery of the heat-sensitive roll paper 402 slides in the roll paper storage unit 431 (for example, , See Patent Document 1).
[0016]
[Non-Patent Document 1]
Aida Kunihiro and Asakawa Akira "Order system changes the restaurant industry", Izumibundo, February 20, 1999, P17
[0017]
[Patent Document 1]
JP 2001-293927 A
[0018]
[Problems to be solved by the invention]
In conventional restaurant printers where the thermal head for printing and the platen roller, the movable blade and the fixed blade are separated by opening the replacement door when replacing the thermal roll paper as in the past, there is no particular holding of the thermal roll paper and the roll paper is stored. In the structure where the thermal roll paper placed in the indentation of the roll rotates by sliding on the outer circumference of the roll, when viewed from the printer module side during printing, the outer circumference of the roll of thermal roll paper against the feeding or pulling force of the thermal roll paper The load caused by the friction between this portion and the indented portion of the thermal roll paper installation portion (roll paper storage portion) on the restaurant printer main body side is large, and the motor that rotates the platen roller accordingly requires a stronger torque.
[0019]
In many cases, as a countermeasure, a rotating roller is used to reduce the frictional load on the contact area between the roll outer periphery of the thermal roll paper and the indented part of the thermal roll paper installation section (roll paper storage section) on the restaurant printer main body side. Sometimes it is provided. However, in this method, the number of components that rotate smoothly is increased, and when the thermal roll paper rotates on this roller, the roll itself sags.
[0020]
When this sag occurs, the thermal roll paper wound in a roll shape is in contact with the lower surface of the indented part of the thermal roll paper installation part (roll paper storage part) on the restaurant printer main body side by its own weight. The sagging tends to sag above the thermal roll paper.
[0021]
The restaurant printer according to the present invention is installed in a relatively small place such as a kitchen or a customer waiting room, and there is a store need to install it so that the installation space is minimized. Therefore, in FIG. 5, the installation space is small and the structure can be installed in a vertically long posture with the A side in FIG. 5 as the bottom surface, and considering the operability so that the heat-sensitive roll paper can be easily replaced, The door for heat-sensitive roll paper replacement | exchange is provided in the D surface side.
[0022]
For example, in a POS cash register system used in a convenience store or a supermarket, a similar thermal printer is incorporated in the POS cash register system, and this thermal printer is considered in consideration of operability and ease of installation. It is installed so that the B surface side in FIG. 5 is downward, and is provided so that the door for heat-sensitive roll paper replacement, that is, the D surface side is upward.
[0023]
As described above, the restaurant printer according to the present invention and the thermal printer incorporated and used in the POS cash register system as described above tend to appear to differ only in the installation posture. Due to the difference, the storage state of the heat-sensitive roll paper stored therein is different, and there are problems described below due to the storage state.
[0024]
The structure that opens the door upward when replacing the thermal roll paper, such as that found in thermal printers that are built into the POS cash register system, is sufficient even if the stored thermal roll paper sags. There is sufficient space, and the positional relationship between the thermal roll paper and the printer module for printing can be set in parallel in the horizontal direction, and the angle at which the thermal roll paper is conveyed can be made smaller than the vertical direction.
[0025]
This is because a slight lateral force is applied when the thermal roll paper whose lower surface is in contact is pulled, so that the load for feeding the platen roller of the printer module is reduced. In addition, since the portion of the thermal roll paper that is pulled angularly spreads upward from the vertical direction, the sagging can also be fanned upward without being restricted. Further, since there is no paper feed guide for the printer module at the upper apex portion of the thermal roll paper having the largest slack, the slack portion is not drawn.
[0026]
In the structure of the restaurant printer according to the present invention, as described above, there is a printer module having a print head above the thermal roll paper, and an auto cutter is attached in the vicinity of the paper discharge port of the printer module. In this auto cutter, a shearing type movable blade for cutting perpendicular to the conveyance direction of the thermal roll paper comes down almost vertically from the upper side of the thermal roll paper, and is fixed at the lower part of the thermal roll paper. It is structured to cut by engaging with the blade.
[0027]
The paper discharge port cut out after printing and the replacement door for the thermal roll paper are located on the front side of the restaurant printer (D-side in FIG. 5). Since the printer module is vertically arranged so that it can be opened and closed via the hinge part at the bottom of the D side of the printer body, when the printer module feeds the thermal roll paper, the replacement door (D side) from the vertical direction Since it pulls to the side, the force which draws a heat-sensitive roll paper to the replacement door (D surface) side is added.
[0028]
This reduces the slack space of the thermal roll paper and limits the amount of slack that can be tolerated. When the amount of sag exceeds the limit, the loose thermal roll paper becomes ineffective, and is finally sandwiched between the upper part of the thermal roll paper (on the replacement door side) and the thermal roll paper pulled from the printer module. When the sheet is fed into the sheet feeding port of the printer module and pulled from one side of the thermal roll paper, the sheet is rotated and fed, and the thermal roll sheet is pulled from both sides and cannot be rotated.
[0029]
In addition, the printer module tries to pull the thermal roll paper that cannot be rotated further from the paper feed port, but it is impossible for the roll of the thermal roll paper itself to enter the paper feed port. It becomes larger than the torque of the driving motor, and is completely locked.
[0030]
As a workaround for this mechanism, there is no problem if it is possible to provide a space that can sufficiently allow the thermal roll paper to sag. However, the sag is used as a measure to reduce the paper feeding load of the thermal roll paper. In addition to using the rotating roller, there is a possibility that when the user replaces the thermal roll paper, there is a possibility that the thermal roll paper with the slack is set in the roll paper storage section as it is. It is impossible to control.
[0031]
In addition, since the restaurant printer needs to be downsized as a product development for achieving a reduction in installation space, an increase in the space that can tolerate the slack is not a good idea in this case. This slack also eliminates the effect of the horizontal wall of the thermal roll paper installation part (roll paper storage part) that regulates the left and right direction of the thermal roll paper, and one side of the thermal roll paper (such as slips) that has been printed, cut, and discharged Only the end face part of the thermal roll paper will be crushed.
[0032]
This is because the heat-sensitive roll paper in a slack state is bent from one sheet to several sheets due to the force of forcibly regulating the lateral displacement, and the heat-sensitive paper strain cannot be withstood. In this way, it is impossible to set the thermal roll paper without sagging, especially when it is decided to change the thermal roll paper during busy periods, especially during busy periods, and printing was caused by the sagging. The end of the slip to be submitted to the customer may be bent, and the quality is insufficient. In addition, when the thermal roll paper is stored in a recess in the roll paper storage section so that the left and right ends of the thermal roll paper are regulated and the outer peripheral surface of the roll is in contact with the roll, it creates slack when the thermal roll paper is set. If this happens, it will not disappear until the next replacement.
[0033]
Therefore, the present invention is not a structure in which the roll outer peripheral surface of the thermal roll paper is brought into contact with the roll, but is held by passing a shaft fixed to the restaurant printer through the paper core portion of the thermal roll paper, and the holding structure is It is an object of the present invention to provide a restaurant printer capable of stable paper feeding, heat-sensitive roll paper exchangeability, and downsizing of the apparatus by being provided on the replacement door side.
[0034]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the restaurant printer of the present invention first provides a thermal roll paper holding part inside the replacement door so that the thermal roll paper can be easily seen visually when replacing the thermal roll paper. Yes, and reduced the cause of incorrect operation.
[0035]
In other words, a component that integrates a sufficiently strong arm inside the replacement door, a shaft that passes through the paper core of the thermal roll paper, and a pedestal that supports the arm is fixed to the frame of the replacement door with a single rotating shaft. In addition, the structure is rotatable. Furthermore, an arm with sufficient strength, a shaft that passes through the core of the thermal roll paper, and a pedestal that supports the arm were urged by a spring and attached inside the replacement door when no thermal roll paper was installed. It is pressed against the platen roller, and when it is mounted, it is pushed back by its own weight of the heat-sensitive roll paper, and is in close contact with the frame of the replacement door. With such a structure, unused thermal roll paper can be easily inserted into the shaft and installed.
[0036]
When installing the thermal roll paper, the shaft that passes through the paper core of the thermal roll paper is in a cantilevered state, but when you actually print by closing the replacement door, the shaft is held by the restaurant printer body side Has a structure in which it can be held at both ends. Also, when the replacement door is closed, the integrated arm with sufficient strength that is in close contact with the thermal roll paper's own weight, the shaft that passes through the core of the thermal roll paper, and the base that supports the arm are also fixed. Was constructed to be a completely fixed shaft.
[0037]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0038]
FIG. 1 is a sectional view of a restaurant printer apparatus according to the present invention, and FIG. 2 is a perspective view thereof. This restaurant printer device is a data output device used in restaurants, taverns, hotels, fast food, etc., and is a data output device in a device constituting part of the order data management device. First, the overall configuration of this order data management device, And the example of its use is demonstrated roughly.
[0039]
Taking a wireless order data management device as an example, an example of its use will be described. The restaurant printer of the present invention is not limited to the wireless type, and can be applied to a wired type.
[0040]
When the customer service representative receives a food order from a customer, each of the ordered menus is input to the portable order input device together with the table number and the like. The input order data is wirelessly transmitted from the order input device. The wirelessly transmitted order data is received by a control device installed at each corner or the like in the store, and is output to a restaurant printer which is a data management device that performs various data processing and centralized management. In the data management device, information such as the order data, a time when the order data is received, and a number for identifying a customer service representative are stored in a storage device.
[0041]
Then, a voucher for cooking instructions is printed out from a restaurant printer installed in the kitchen, and a cooking instruction is sent to the person in charge of cooking. An accounting slip is printed out from another restaurant printer, which is handed to the customer by the customer service representative. The person in charge of cooking starts cooking according to the cooking instruction slip, and notifies the customer service representative when cooking is completed. Thereby, the customer service representative carries the cooking to the customer who has received the order and distributes it. In addition to the wireless method described above, there is an electromagnetic induction type order input device that transmits and receives order data using an electromagnetic induction coil.
[0042]
The restaurant printer device used as described above is sent from a storage device that stores information such as the order data, the time when the order data is received, and a number for identifying a customer service representative in the data management device. The received information is received wirelessly, and a slip is output for a cooking instruction in accordance with an instruction from the storage device. In addition, an accounting slip to be delivered to the customer is output to a restaurant printer installed in the vicinity of the guest room.
[0043]
Therefore, as shown in FIG. 1, the information from the storage device is received by the antenna 119 and processed by the control board 120, and instructions are sent to the printer module 103 for printing and to the auto cutter 104 for cutting. Therefore, although the slip output is different for each application, the basic thermal printing is basically the same thermal printing, and the thermal roll paper 102 before use wound in a roll shape can be stored in the restaurant printer main body 101, and a printer module for printing is placed on the upper part. An auto cutter 104 is provided on the slip discharge port 105 side of the printer module 103. The auto cutter 104 is arranged to cut the thermal roll paper on which the slip content is printed to form a slip.
[0044]
The slip cut by the auto cutter 104 is discharged (output) from the slip discharge port 105 of the restaurant printer apparatus 101. The printer module 103 has a structure in which the print head 106 and the platen roller 107 that sandwiches and presses the heat-sensitive roll paper at the time of printing are separable. Similarly, the auto cutter 104 is also movable. The blade 108 and the fixed blade 109 are separable. In this auto cutter 104, a shearing type movable blade 108 for cutting perpendicularly to the running direction in the vicinity of the slip discharge port of the thermal roll paper 102 comes down almost vertically from above the printed thermal roll paper 110, It is structured to cut by engaging with the fixed blade 109 located at the lower part of the printed thermal roll paper 110.
[0045]
A paper discharge port 105 that has been printed and cut (the slip discharge port 105 of the restaurant printer apparatus) and a replacement door 111 that can be opened and closed to replace the thermal roll paper are provided on the front of the restaurant printer. The replacement door 111 is connected to the restaurant printer main body 101 through a hinge 112 at the bottom of the front face so as to be opened and closed. Inside the replacement door 111, there is a platen roller 107 that presses the thermal roll paper against the thermal head 106 during printing, and a fixed blade of an auto cutter 104 that cuts the printed portion to an optimum length without extra margin. 109 is attached.
[0046]
Therefore, when the thermal roll paper 102 or the like is replaced, the thermal roll paper is sandwiched between the print head 106 and the platen roller 107 when the replacement door 111 is opened by rotating around the hinge 112 located at the lower part of the restaurant printer main body 101. The thermal paper transport path of the auto cutter 104 that prints and cuts the printed thermal paper to an optimum length is completely opened.
[0047]
This is because the printer module 103 having the print head 106 as described above is separated into the print head 106 attached to the restaurant printer main body 101 side and the platen roller 107 attached to the replacement door 111 side. This is because the movable blade 108 of the auto cutter 104 attached to the restaurant printer main body 101 side and the fixed blade 109 attached to the front door 111 side can be separated.
[0048]
The shaft 114 for holding the paper core 113 of the thermal roll paper 102 is integrated with an arm portion 115 for holding the thermal roll paper 102 and a pedestal portion 116 as a base thereof, and the replacement door 111. The frame 117 is fixed to the frame 117 with a shaft 118, and the portion has a rotatable structure. This is because when the replacement door is closed, that is, the position of the thermal roll paper (solid line in FIG. 1) that the restaurant printer must fit during the printing operation, and the replacement door is opened when the thermal roll paper is replaced. This is because the position 128 where the heat-sensitive roll paper can be set smoothly does not coincide with only the rotation of the hinge 112 at the bottom front of the restaurant printer main body 101.
[0049]
That is, if the thermal roll paper 129 that is not used (new) is inserted into the shaft 114 with the thermal roll paper necessary for printing in the same position, the outer shape of the thermal roll paper 129 is large, so It cannot be attached when it interferes with the body (hatched portion) 121 and the replacement door 111 is opened 90 degrees. In addition, if the front door 111 is closed at a position that satisfies the above-described condition of mounting the thermal roll paper (position of the thermal roll paper 128), the front roll 111 cannot be fully accommodated in the housing of the restaurant printer 101. It is sufficient to increase the distance between the shaft 114, which is the paper core (rotation center of the thermal roll paper), and the printer module 103, but in order to achieve downsizing, there is a problem that the distance cannot be increased.
[0050]
Therefore, when the replacement door is opened, the integrated shaft 114, arm 115 and pedestal 116 are not used (new) thermal roll paper so that the unused (new) thermal roll paper 120 can be easily mounted when the replacement door is opened. The structure is such that 120 can be mounted and moved to an easy position (solid line portion).
[0051]
Hereinafter, a description will be given with reference to FIG. The shaft 114, the arm 115, and the pedestal 116 are formed into an integrated molded product, so that the rotational load can be reduced without using separate parts that rotate in the shaft 114 portion as a reduction in the rotational load of the thermal roll paper. it can. The movement of the integrated pedestal 116 will be described. When the replacement door 111 is open and there is no thermal roll paper, the shaft 118 is lifted from the frame 117 of the front door 111 by the spring 122 with the shaft 118 as a fulcrum. The stopper 124 of the base 116 is pressed against the stopper 123 of the frame 117.
[0052]
That is, in this state, there is sufficient space for inserting the unused (new) heat-sensitive roll paper 120 into the shaft 114 from the front side of the figure and does not interfere with the casing of the restaurant printer 101. The position of the pedestal 116 is different depending on the presence or absence of thermal roll paper, but when the replacement door 111 is closed, the stopper portion 127 on the restaurant printer main body 101 side holds the stopper portion 127 when the arm 115 is closed. During printing, the shaft 114 is fixed at a necessary position.
[0053]
When the replacement door 111 is opened, the shaft 114 that is cantilevered is supported by the receiving portion 126 on the wireless printer main body 101 side when the replacement door 111 is closed, and becomes a both-ends support structure. Further, when the replacement door 111 is opened, if there is no thermal roll paper as described above, it is located above the frame 117 of the replacement door 111 by the spring 122 around the shaft 118 and is placed on the stopper 123 of the frame 117. 116 stopper part 124 is pressed. Here, when the thermal roll paper is inserted into the shaft 114, the integrated shaft 114, the arm 115, and the pedestal 116 are lowered by the weight of the thermal roll paper and are in close contact with the frame 117 of the front door 111.
[0054]
This position is a position when the restaurant printer apparatus 101 is printing. Even if the replacement door 111 is closed in this state, the pedestal 116 is in close contact with the frame 117 of the replacement door 111 due to its own weight in the middle of the closing operation, but as described above, the stopper portion 127 of the arm 115 is also closed. Is stopped by the stopper portion 125 on the restaurant printer main body 101 side, and the shaft 114 is fixed at a position necessary for printing. Further, as shown in FIG. 4A, the shaft 114 which is the cantilever support when the replacement door 111 is opened as shown in FIG. 4A on the restaurant printer main body 101 side when the replacement door 111 is closed as described above. It is supported by the receiving part 126 and becomes a both-ends support structure, and is stable.
[0055]
Further, the stopper 126 (the stopper 126 on the restaurant printer main body side) is used to support both ends when the thermal roll paper is mounted. The rib is formed in an L shape as shown in FIG. 5B on the restaurant printer housing side. By shaping, it is possible to combine the action of fixing the movement of the integrated shaft portion at the same time as receiving a downward load.
[0056]
The shaft, arm, pedestal, urging spring structure and the like provided on the replacement door are not limited to the illustrated structure, and include all structures based on the gist of the present invention. Needless to say. In addition, a thermal printer that performs printing on a thermal paper as an example of the printer module has been described. For example, an ink jet print head that performs printing by ejecting ink from nozzles is used to hold and store a roll-shaped recording paper. The present invention is also applicable to such restaurant printers.
[0057]
Further, the restaurant printer has been described as an example. However, the printer according to the present invention is not limited to the above-described printer used in a restaurant, but is also a printer for all uses configured in accordance with the gist of the present invention. Applicable.
[0058]
【The invention's effect】
As described above, according to the present invention, not only the thermal roll paper conveyance failure and the bending of the left and right end faces of the printing slip due to the roll slack that may occur when the thermal roll paper is set, but also the rotation of the thermal roll paper during printing is prevented. The load could be reduced, which provided sufficient margin for the motor torque required to drive the platen roller. This leads to stabilization of the printing position and has an effect of reducing the power consumption of the motor. Further, by holding the paper core of the heat-sensitive roll paper, there is an effect that the heat-sensitive surface is prevented from being damaged without coming into contact with the outer peripheral surface of the heat-sensitive roll paper.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a lateral side surface of a restaurant printer according to the present invention.
FIG. 2 is a perspective view of a restaurant printer according to the present invention.
FIG. 3 is an explanatory diagram for explaining a main part of a restaurant printer according to the present invention.
FIG. 4 is a structural diagram showing a rib structure of a restaurant printer according to the present invention.
FIG. 5 is a cross-sectional view of a conventional restaurant printer.
[Explanation of symbols]
101 Restaurant printer
102 Thermal roll paper
103 Printer module
104 Auto cutter
105 slip outlet
106 Thermal head
107 Platen roller
108 Movable blade
109 Fixed blade
110 Printed thermal roll paper
111 Replacement door
112 Hinge
113 paper core
114 shaft
115 arms
116 pedestal
117 frames
118 shaft
119 Antenna
120 Control board
121 Interference between the housing of the restaurant printer and unused thermal roll paper
122 Spring
123 Frame stopper
124 Pedestal stopper
125 Restaurant printer body side stopper
126 Receiving part on the main body of the restaurant printer
127 Arm stopper
128 Location of thermal roll paper that does not interfere with the restaurant printer

Claims (6)

In a printer in which a paper discharge port is arranged on the front side and a door for exchanging the thermal roll paper to be used is also arranged on the same front side as the paper discharge port, the inside of the door that opens and closes when the thermal roll paper is exchanged And a rotating shaft for rotatably holding the thermal roll paper. The rotary shaft of the thermal roll paper provided inside the front door that opens and closes when the thermal roll paper is replaced is made of resin, and there are three parts: an arm portion that supports the rotary shaft itself and a pedestal portion for maintaining stable strength. 2. The printer according to claim 1, wherein the printer is an integrated molded product and is light in weight while being high in strength. The rotating shaft of the thermal roll paper provided inside the front door that opens and closes when the thermal roll paper is replaced has a shape that can rotate on a pedestal portion attached to the inside of the door, and when attached to the inside of the door, the printer main body The printer according to claim 1, wherein the printer has a movable structure that rotates in the same direction as the door that rotates about the lower center of the casing. A spring is provided on the housing side of the printer body located on the opposite side to the rotatable structure of the pedestal portion attached to the inner side of the front door of the rotary shaft of the thermal roll paper, and when the door is open, the thermal sensitivity is not applied when the door is open. The printer according to claim 1, wherein the rotation axis of the roll paper is lifted and the position is automatically changed depending on the presence or absence of the thermal roll paper. 2. The printer according to claim 1, wherein the printer body is provided with a stopper so as to be automatically fixed when the door is closed while being movable. The rotating shaft of the thermal roll paper inside the door is supported and fixed only on one side when the door is open, but is supported at both ends when the door is closed so that the rotating shaft is stabilized. The printer according to claim 1, wherein a protrusion is formed on the main body.

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