Self-service printer

Abstract

The utility model discloses a self-service printer which comprises a cabinet body, a printing device and a paper feeder, one side of the cabinet body is provided with a paper taking port, and the paper taking port is communicated with the interior of the cabinet body; the printing device is arranged in the cabinet body, and the printing device is provided with a paper outlet channel and a paper outlet communicated with the paper outlet channel; the paper feeder is provided with a conveying channel and a conveying mechanism located in the conveying channel, the receiving end of the paper feeder is inserted into the paper outlet channel through the paper outlet, the outer side wall of the paper feeder abuts against the channel wall of the paper outlet channel, the sending-out end of the paper feeder corresponds to the paper taking opening, and the conveying mechanism is used for conveying paper in the conveying channel to the paper taking opening from the sending-out end. The self-service printer provided by the technical scheme of the utility model is convenient to disassemble and assemble the paper feeder.

Description

TECHNICAL FIELD

[0001] The utility model relates to printing device technical field, especially a kind of self-service printer. BACKGROUND

[0002] With the development of electronization and informationization in various trades, intelligent service scheme has been widely applied, such as intelligent medical treatment, intelligent bank, intelligent government affairs etc., these intelligent services are based on intelligent self-service equipment, and in these self-service equipment, printing device is widely used as a kind of application scene, in the existing self-service printer, paper taking port is arranged on the body, and printing device is arranged in mechanism, but there is a certain distance between the paper outlet of printing device and paper taking port, and paper feeder is needed to assist the transmission of paper.

[0003] And the existing paper feeder is usually installed on the paper outlet of printing device by screw fastener, but when printing device needs to be maintained, bolt needs to be unscrewed first, and then paper feeder can be removed from printing device, so that the disassembly convenience of paper feeder is poor. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of self-service printer, to facilitate the maintenance of printing device.

[0005] To achieve the above-mentioned purpose, the self-service printer provided by the utility model comprises:

[0006] Cabinet, the side of the cabinet is equipped with paper taking port, and the paper taking port is communicated with the inside of the cabinet;

[0007] Printing device, which is arranged in the cabinet, has a paper outlet and a paper outlet communicated with the paper outlet; and

[0008] Paper feeder, which has a conveying channel and a conveying mechanism in the conveying channel, the receiving end of the paper feeder is inserted into the paper outlet through the paper outlet, and the outer wall of the paper feeder is in abutment with the channel wall of the paper outlet, the delivery end of the paper feeder corresponds to the paper taking port, and the conveying mechanism is used to deliver the paper in the conveying channel from the delivery end to the paper taking port.

[0009] Optionally, the paper feeder comprises a mounting structure, the mounting structure has the conveying channel, and the mounting structure is provided with an abutment portion on the outside, when the receiving end of the conveying channel is inserted into the paper outlet, the abutment portion is in abutment with the surface of the printing device.

[0010] Optionally, the installation structure comprises a bottom plate and side plates located on opposite sides of the bottom plate, the bottom plate and the two side plates form the conveying channel, the two side plates extend upward from the side away from the bottom plate and the end away from the printing device to form the abutting portion.

[0011] Optionally, the paper feeder further comprises an electric control device and a first sensor, the electric control device is installed on the installation structure and electrically connected with the conveying mechanism and the first sensor, the first sensor is arranged on the installation structure, the first sensor is configured to send an electric signal to the electric control device when detecting that a paper enters the conveying channel, and the electric control device is configured to control the conveying mechanism to operate when receiving the electric signal sent by the first sensor.

[0012] Optionally, the installation structure further comprises a first mounting plate, the first mounting plate is installed between the two side plates and spaced from the bottom plate, the first mounting plate is located on the front side of the conveying mechanism and is not lower than the conveying mechanism, the first mounting plate is provided with a through hole, and the first sensor is installed on the side of the mounting plate facing the bottom wall of the conveying channel and is arranged corresponding to the through hole.

[0013] Optionally, the paper feeder further comprises a second sensor, the second sensor and the first sensor are arranged at the receiving end and the sending end of the conveying channel respectively, the second sensor is electrically connected with the electric control device, the second sensor is configured to send an electric signal to the electric control device when detecting a paper, and the electric control device is configured to control the conveying mechanism to operate when receiving the electric signal sent by the sensor.

[0014] Optionally, the installation structure further comprises a second mounting plate, the second mounting plate is installed between the two side plates and located at the end of the side plate away from the printer, and the second sensor is installed on the second mounting plate and the sensing end of the second sensor faces the conveying mechanism.

[0015] Optionally, the conveying mechanism comprises a driving roller, a driven roller, a conveying belt and a driving motor, the driving roller and the driven roller are both rotatably installed between the two opposite channel walls of the conveying channel, and the first driving roller and the driven roller are arranged at intervals, the conveying belt is sleeved between the driving roller and the driven roller and extends along the rotation axis direction of the driving roller, and the driving motor is installed on the installation structure and connected with the driving roller.

[0016] Optionally, the side wall of the paper feeder is provided with a limiting portion, and the limiting portion abuts against the periphery of the paper taking opening.

[0017] Optionally, the self-service printer further includes a baffle located at the paper dispensing port to open and close the paper dispensing port.

[0018] This utility model's technical solution involves providing a paper pick-up port on one side of the cabinet, which communicates with the interior of the cabinet. The printing device is housed within the cabinet, and the printing device has a paper output channel and a paper output port communicating with the paper output channel. The paper feeder has a conveying channel and a conveying mechanism located within the conveying channel. The receiving end of the paper feeder is inserted into the paper output channel through the paper output port, with the outer wall of the paper feeder abutting against the channel wall of the paper output channel. The output end of the paper feeder corresponds to the paper pick-up port. Thus, when installing the paper feeder, only the receiving end of the conveying channel needs to be inserted into the paper output channel of the printing device, allowing for a secure connection between the paper feeder and the channel wall of the paper output channel. When it is necessary to remove the paper feeder, simply apply a pulling force to pull the receiving end of the conveying channel out of the paper output channel. This allows for disassembly and assembly of the paper feeder without unscrewing bolts, thereby improving the ease of disassembly and assembly. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the self-service printer of this utility model;

[0021] Figure 2 for Figure 1 A cross-sectional view of a self-service printer in China;

[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 A schematic diagram of the paper feeder installed on the printing device;

[0024] Figure 5 for Figure 4 Exploded view of the paper feeder and printing unit;

[0025] Figure 6 for Figure 5 A schematic diagram of the paper feeder structure;

[0026] Figure 7 for Figure 6 A partial structural diagram of the paper feeder;

[0027] Figure 8 Structure diagram of another embodiment of the self-service printer paper feeder of the utility model.

[0028] Explanation of the reference signs:

[0029] 10, cabinet; 11, mounting cavity; 20, printing device; 21, paper outlet; 30, paper feeder; 31, mounting structure; 311, conveying channel; 312, bottom plate; 313, side plate; 3131, abutting portion; 314, first mounting plate; 3141, through hole; 315, second mounting plate; 32, conveying mechanism; 321, driving roller; 322, driven roller; 323, conveying belt; 324, driving motor; 325, driving wheel; 33, electric control device; 40, first inductor; 50, second inductor; 60, baffle; 61, gripping portion; 70, limiting portion

[0030] The realization, functional features and advantages of the utility model will be further described with reference to the accompanying drawings in combination with embodiments. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indications also change accordingly.

[0033] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0034] The utility model provides a kind of self-service printer.

[0035] In the embodiments of the utility model, as shown in Figures 1 to 8 The self-service printer includes a cabinet 10, a printing device 20 and a paper feeder 30.

[0036] Specifically, the cabinet 10 is provided with a mounting cavity 11, and one side of the cabinet 10 is provided with a paper taking port which is in communication with the mounting cavity 11. The printing device 20 is arranged in the mounting cavity 11, and the printing device 20 has a paper outlet channel and a paper outlet port 21 which is in communication with the paper outlet channel. As known, the printing device 20 is a machine for printing documents or photos. Since the printing device 20 is a very mature technology, it has been widely used in the market. The technical principles and detailed structures of the printing device 20 will not be described in detail, and the existing technology can be referred to for details.

[0037] The printing device 20 can be a color inkjet printing device 20 or a color laser printing device 20, and of course, it can also be a common black-and-white printing device 20. The specific setting can be made according to actual needs, and the present application does not make specific limitations in this regard.

[0038] The paper feeder 30 has a conveying channel 311 and a conveying mechanism 32 arranged in the conveying channel 311. The receiving end of the paper feeder 30 is inserted into the paper outlet channel through the paper outlet port 21, so that the printed paper can enter the conveying channel 311 through the receiving end. The outer side wall of the paper feeder 30 abuts against the channel wall of the paper outlet channel, and the delivery end of the paper feeder 30 corresponds to the paper taking port. The conveying mechanism 32 is used to deliver the printed paper in the conveying channel 311 from the delivery end to the paper taking port, so as to be taken by the user.

[0039] Specifically, the receiving end of the paper feeder 30 is shaped to match the shape of the paper outlet channel, and when installed, the receiving end of the paper feeder 30 is inserted into the paper outlet channel, so that the outer wall of the paper feeder 30 abuts against the channel wall of the paper outlet channel, so that the paper feeder 30 is inserted and fitted with the paper outlet channel to achieve fixed installation of the paper feeder 30. When it is necessary to disassemble the paper feeder 30, only by applying a pulling force to the paper feeder 30 to pull the receiving end of the paper feeder 30 out of the paper outlet channel, so that the disassembly and assembly of the paper feeder 30 can be completed without screwing the bolts, thereby improving the disassembly and assembly convenience of the paper feeder 30.

[0040] In the embodiment, the self-service printer further comprises a printing control module, the printing control module is electrically connected with the printing device 20, and the printing control module is used for controlling the work of the printing device 20.

[0041] The technical scheme of the utility model discloses a paper taking opening is arranged on one side of the cabinet 10, the paper taking opening is communicated with the inside of the cabinet 10, the printing device 20 is arranged in the cabinet 10, and the printing device 20 has a paper outlet channel and a paper outlet 21 communicated with the paper outlet channel, the paper feeder 30 has a conveying channel 311 and a conveying mechanism 32 located in the conveying channel 311, the receiving end of the paper feeder 30 is inserted into the paper outlet channel through the paper outlet 21, the outer wall of the paper feeder 30 abuts against the channel wall of the paper outlet channel, and the delivery end of the paper feeder 30 corresponds to the paper taking opening. In this way, when installing the paper feeder 30, only the receiving end of the paper feeder 30 needs to be inserted into the paper outlet channel of the printing device 20 to be inserted and fitted with the channel wall of the paper outlet channel, so that the fixed installation of the paper feeder 30 is realized. When it is necessary to disassemble the paper feeder 30, only by applying a pulling force to the paper feeder 30 to pull the receiving end of the paper feeder 30 out of the paper outlet channel, so that the disassembly and assembly of the paper feeder 30 can be completed without screwing the bolts, thereby improving the disassembly and assembly convenience of the paper feeder 30.

[0042] In some embodiments, the paper feeder 30 comprises a mounting structure 31, the mounting structure 31 has a conveying channel 311, the mounting structure 31 is provided with an abutting portion 3131, and when the receiving end of the conveying channel 311 is inserted into the paper outlet channel, the abutting portion 3131 abuts against the surface of the printing device 20. Specifically, during installation, the worker continuously inserts the receiving end of the paper feeder 30 into the paper outlet channel through the paper outlet 21 until the abutting portion 3131 abuts against the surface of the printing device 20, so that damage to the inside of the printer caused by excessive insertion of the paper feeder 30 can be prevented. In addition, in other embodiments, the mounting structure 31 can also not be provided with the abutting portion 3131.

[0043] In some embodiments, the mounting structure 31 comprises a bottom plate 312 and side plates 313 located on opposite sides of the bottom plate 312, the bottom plate 312 and the two side plates 313 form a conveying channel 311 therebetween, and the two side plates 313 extend upward from the side of the bottom plate 312 away from the printing device 20 to form abutting portions 3131. In this way, the abutting portions 3131 do not need to be additionally provided, so that the overall mounting structure 31 is relatively simple, which is conducive to reducing the overall structural complexity. Optionally, the bottom plate 312 and the two side plates 313 are integrally formed.

[0044] In some embodiments, the paper feeder 30 further comprises an electric control device 33 and a first sensor 40, the electric control device 33 is mounted on the mounting structure 31 and electrically connected with the conveying mechanism 32 and the first sensor 40, and the first sensor 40 is arranged on the mounting structure 31, the first sensor 40 is configured to send an electric signal to the electric control device 33 when detecting that a paper enters the conveying channel 311, and the electric control device 33 is configured to control the conveying mechanism 32 to operate when receiving the electric signal sent by the first sensor 40.

[0045] Specifically, the first sensor 40 is an infrared sensor, and the printed paper entering the conveying channel 311 through the receiving end can be sensed by the first sensor 40. After the first sensor 40 senses that the paper enters the conveying channel 311, the first sensor 40 sends an electric signal to the electric control device 33. When the electric control device 33 receives the electric signal, the electric control device 33 controls the conveying mechanism 32 to convey the printed paper entering the conveying channel 311 from the conveying end to the paper outlet. In addition, when the printed paper leaves the sensing range of the first sensor 40, the first sensor 40 stops sending the electric signal to the electric control device 33, and the electric control device 33 controls the conveying mechanism 32 to stop conveying when not receiving the electric signal. In this way, the automatic opening and closing of the conveying mechanism 32 are realized. The model of the infrared sensor can be ITR001 infrared reflective photoelectric sensor, GP2AP002S00F infrared proximity sensor, LTH-1550-01 reflective photoelectric sensor, etc.

[0046] It is worth noting that the control condition of the electric control device 33 is not limited to immediately controlling the conveying mechanism 32 to stop conveying. In some embodiments, when the electric control device 33 does not receive the electric signal for a certain period of time (for example, two seconds, three seconds, four seconds, etc.), the electric control device 33 controls the conveying mechanism 32 to stop conveying.

[0047] In some embodiments, the installation structure 31 further comprises a first installation plate 314, which is installed between the two side plates 313 and is spaced apart from the bottom plate 312, the first installation plate 314 is located at the front side of the conveying mechanism 32 and is not lower than the conveying mechanism 32, the first installation plate 314 is provided with a through hole 3141, and the first sensor 40 is installed on the side of the installation plate facing the bottom wall of the conveying channel 311 and is arranged corresponding to the through hole 3141.

[0048] Specifically, the first installation plate 314 is used to provide a mounting position for the first sensor 40, that is, when the first sensor 40 is installed, the first sensor 40 can be installed on the first installation plate 314, thereby reducing the installation difficulty of the first sensor 40, and the through hole 3141 is arranged so that the first sensor 40 detects whether the printed paper enters the conveying channel 311 through the through hole 3141 and does not interfere with the printed paper entering the conveying mechanism 32.

[0049] Moreover, the first installation plate 314 is located at the front side of the conveying mechanism 32 and is flush with the conveying mechanism 32 or is higher than the conveying mechanism 32, so that the printed paper can smoothly slide from the first installation plate 314 to the conveying mechanism 32, and interference of the end of the conveying mechanism 32 with the sliding of the printed paper can be avoided.

[0050] In some embodiments, the paper feeder 30 further comprises a second sensor 50, which is arranged at the delivery end and the receiving end of the conveying channel 311 respectively, the second sensor 50 is electrically connected with the electric control device 33, and the second sensor 50 is configured to send an electric signal to the electric control device 33 when detecting the paper, and the electric control device 33 is configured to control the conveying mechanism 32 to operate when receiving the electric signal sent by the sensor.

[0051] Specifically, the second sensor 50 is an infrared sensor, when the printed device 20 prints a small-sized paper (for example, a photo paper), the printed paper enters the conveying channel 311 from the receiving end and is sensed by the first sensor 40, at this time, the first sensor 40 sends an electric signal to the electric control device 33, when the electric control device 33 receives the electric signal, the electric control device 33 controls the conveying mechanism 32 to convey the printed paper entering the conveying channel 311, under the conveying of the conveying mechanism 32, the printed paper leaves the sensing range of the first sensor 40 and enters the range of the second sensor 50, at this time, the second sensor 50 stops sending an electric signal to the electric control device 33, when the electric control device 33 receives the electric signal sent by the second sensor 50, the electric control device 33 continues to control the conveying mechanism 32 to convey the printed paper.

[0052] In this way, the small-size paper that has completed printing can be prevented from leaving the sensing range of the first sensor 40, and the position of the paper that has completed printing is not clear. Specifically, when the paper that has completed printing leaves the sensing range of the first sensor 40, the conveying mechanism 32 is immediately stopped, which can cause the paper that has completed printing to be far away from the paper outlet. In addition, when the paper that has completed printing leaves the sensing range of the first sensor 40, the conveying mechanism 32 continues to convey the paper that has completed printing, which can cause the paper that has completed printing to be sent out from the paper outlet. By cooperating the first sensor 40 and the second sensor 50 to detect the paper that has completed printing, the accurate conveying of the paper that has completed printing is achieved. In addition, in other embodiments, the paper feeder 30 does not have the second sensor 50.

[0053] The infrared sensor can be an ITR001 infrared reflective photoelectric sensor, a GP2AP002S00F infrared proximity sensor, or an LTH-1550-01 reflective photoelectric sensor.

[0054] In some embodiments, the mounting structure 31 further includes a second mounting plate 315, the second mounting plate 315 is mounted between the two side plates 313 and located at the end of the side plate 313 away from the printer, the second sensor 50 is mounted on the second mounting plate 315, and the sensing end of the second sensor 50 faces the conveying mechanism 32.

[0055] Specifically, the second mounting plate 315 is used to provide a mounting position for the second sensor 50, that is, when the second sensor 50 is mounted, the second sensor 50 can be mounted on the second mounting plate 315, thereby reducing the installation difficulty of the second sensor 50.

[0056] In some embodiments, the conveying mechanism 32 includes a driving roller 321, a driven roller 322, a conveying belt 323, and a driving motor 324. The driving roller 321 and the driven roller 322 are both rotatably mounted between two channel walls opposite to each other of the conveying channel 311, and the first driving roller 321 and the driven roller 322 are spaced apart from each other. The conveying belt 323 is sleeved between the driving roller 321 and the driven roller 322 and extends along the rotation axis direction of the driving roller 321. The driving motor 324 is mounted on the mounting structure 31 and connected with the driving roller 321.

[0057] Specifically, the driving motor 324 is used to drive the driving roller 321 to rotate, so as to drive the conveying belt 323 to rotate through the driving roller 321, thereby conveying the paper that has completed printing. The conveying belt 323 is arranged to extend along the rotation axis direction of the driving roller 321, which can avoid the risk of the paper that has completed printing falling from between two adjacent conveying belts 323, thereby being conducive to improving the conveying stability of the paper.

[0058] In another embodiment, the conveying mechanism 32 comprises a driving roller 321, a driven roller 322, a plurality of driving wheels 325, a plurality of driven wheels, a plurality of conveying belts 323, and a driving motor 324. The driving roller 321 and the driven roller 322 are both rotatably installed between two opposite channel walls of the conveying channel 311, and the first driving roller 321 and the driven roller 322 are spaced apart from each other. The plurality of driving wheels 325 are all sleeved on the driving roller 321, and the plurality of driving wheels 325 are spaced apart from each other. The plurality of driven wheels are all sleeved on the driven roller 322, and the plurality of driven wheels are spaced apart from each other, and each driven wheel is correspondingly arranged with one driving wheel 325. Each conveying belt 323 is correspondingly sleeved on one driving wheel 325 and one driven wheel. The driving motor 324 is drivingly connected with the driving roller 321.

[0059] The number of the driving wheels 325, the driven wheels, and the conveying belts 323 can be set according to the size of the paper printed by the printing device 20. For example, when the printing device 20 is set to print large paper (for example, A4 paper), the number of the driving wheels 325, the driven wheels, and the conveying belts 323 can be set to only two, three, or four. When the printing device 20 is set to print small paper (for example, photo paper), the number of the driving wheels 325, the driven wheels, and the conveying belts 323 can be set to five, six, seven, or more, so that the spacing between adjacent two conveying belts 323 is small, and the printed paper is prevented from falling off between the adjacent two conveying belts 323.

[0060] In some embodiments, the side wall of the paper feeder 30 is provided with a limiting portion 70, and the limiting portion 70 abuts against the periphery of the paper taking opening. Specifically, the limiting portion 70 abuts against the periphery of the paper taking opening to limit the paper feeder 30, so that the receiving end of the paper feeder 30 is prevented from sliding out of the paper outlet channel, that is, the installation stability of the paper feeder 30 is improved. Optionally, the two opposite side walls of the paper feeder 30 are both provided with the limiting portion 70. In addition, in other embodiments, the outer side wall of the paper feeder 30 is not provided with the limiting portion 70.

[0061] In some embodiments, the self-service printer further comprises a baffle 60 arranged at the paper taking opening and used for opening and closing the paper taking opening. That is, the baffle 60 is movably arranged at the paper taking opening and used for opening and closing the paper taking opening. In this way, rainwater can be blocked by the baffle 60, so that the risk of water entering the cabinet 10 from the paper taking opening is reduced. Optionally, the baffle 60 is provided with a gripping portion 61 used for being gripped by a user. That is, the user can open the baffle 60 by gripping the gripping portion 61, which is beneficial to improving the user experience.

[0062] Further, the self-service printer further comprises an electronic lock, the electronic lock is arranged on the cabinet 10, the baffle 60 is provided with a lock hole, the lock tongue of the electronic lock is inserted into the lock hole, so as to fix the baffle 60 in the closed state, the electronic lock is electrically connected with the printing electric control module, and the electric control device 33 is used for controlling the opening and closing of the electronic lock.

[0063] Specifically, before the user needs to open the baffle 60, the electronic lock needs to be unlocked first, and then the baffle 60 can be opened. In this way, when the user is waiting for printing and leaves the range of the self-service printer, other people can be prevented from opening the baffle 60 to take the printed paper.

[0064] Among them, the unlocking mode of the electronic lock can be selectively set. In an embodiment, the user can unlock on the mobile phone or operate to unlock on the display screen. It should be noted that when unlocking through the display screen, the password needs to be input first, and then the unlocking can be performed. Of course, in other embodiments, the self-service printer can also not be provided with an electronic lock.

[0065] The above only describes the preferred embodiments of the present application, and does not limit the patent range of the present application. Any equivalent structural transformation or direct / indirect application in other related technical fields within the inventive concept of the present application, as described in the present application and the drawings, is included in the patent protection range of the present application.

Claims

1. A self-service printer, characterized by The application relates to a paper feeding device for a printing device, comprising: a cabinet, one side of which is provided with a paper taking opening, the paper taking opening being in communication with the inside of the cabinet; a printing device arranged in the cabinet, the printing device being provided with a paper outlet channel and a paper outlet opening in communication with the paper outlet channel; a paper feeder, which is provided with a conveying channel and a conveying mechanism arranged in the conveying channel, the receiving end of the paper feeder being inserted into the paper outlet channel through the paper outlet opening, the outer side wall of the paper feeder being in abutment with the channel wall of the paper outlet channel, the delivery end of the paper feeder corresponding to the paper taking opening, and the conveying mechanism being used for conveying the paper in the conveying channel from the delivery end to the paper taking opening. The paper feeder is provided with a mounting structure, the mounting structure being provided with the conveying channel, and the mounting structure being provided with an abutment portion on the outer side, when the receiving end of the conveying channel is inserted into the paper outlet channel, the abutment portion being in abutment with the surface of the printing device. The mounting structure comprises a bottom plate and side plates arranged on the opposite sides of the bottom plate, the conveying channel being formed between the bottom plate and the two side plates, the side plates being extended upwards from the side away from the bottom plate and the end away from the printing device to form the abutment portion.

2. The self-service printer of claim 1, wherein, The paper feeder is further provided with an electric control device and a first sensor, the electric control device being arranged in the mounting structure and being electrically connected with the conveying mechanism and the first sensor, the first sensor being arranged in the mounting structure, the first sensor being configured to send an electric signal to the electric control device when detecting that the paper enters the conveying channel, and the electric control device being configured to control the operation of the conveying mechanism when receiving the electric signal sent by the first sensor.

3. The self-service printer of claim 2, wherein, The mounting structure is further provided with a first mounting plate, the first mounting plate being arranged between the two side plates and being spaced from the bottom plate, the first mounting plate being arranged on the front side of the conveying mechanism and being higher than the conveying mechanism, the first mounting plate being provided with a through hole, and the first sensor being arranged on the side of the mounting plate facing the bottom wall of the conveying channel and being arranged corresponding to the through hole.

4. The self-service printer of claim 3, wherein, The paper feeder is further provided with a second sensor, the second sensor and the first sensor being arranged at the receiving end and the delivery end of the conveying channel respectively, the second sensor being electrically connected with the electric control device, the second sensor being configured to send an electric signal to the electric control device when detecting the paper, and the electric control device being configured to control the operation of the conveying mechanism when receiving the electric signal sent by the sensor.

5. The self-service printer of claim 4, wherein, The mounting structure is further provided with a second mounting plate, the second mounting plate being arranged between the two side plates and being arranged at the end of the side plates away from the printing device, the second sensor being arranged on the second mounting plate, and the sensing end of the second sensor facing the conveying mechanism.

6. The self-service printer of claim 5, wherein, ​ 7. The self-service printer of claim 6, wherein, ​ 8. The self-service printer of claim 7, wherein, The conveying mechanism comprises a driving roller, a driven roller, a conveying belt and a driving motor, the driving roller and the driven roller are rotatably installed between two channel walls opposite to each other of the conveying channel, the first driving roller and the driven roller are spaced apart from each other, the conveying belt is sleeved between the driving roller and the driven roller and extends along the rotation axis direction of the driving roller, and the driving motor is installed on the mounting structure and connected with the driving roller.

9. The self-service printer of claim 1, wherein, The side wall of the paper feeder is provided with a limiting portion, and the limiting portion abuts against the periphery of the paper taking opening.

10. The self-service printer of claim 1, wherein, The self-service printer further comprises a baffle, which is arranged at the paper taking opening and is opened and closed with the paper taking opening.

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