CN209851831U - Printer and printing method - Google Patents
Printer and printing method Download PDFInfo
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- CN209851831U CN209851831U CN201822237523.4U CN201822237523U CN209851831U CN 209851831 U CN209851831 U CN 209851831U CN 201822237523 U CN201822237523 U CN 201822237523U CN 209851831 U CN209851831 U CN 209851831U
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Abstract
The utility model provides a printer relates to and prints technical field. The printer comprises a first machine body and a second machine body, wherein a paper feeding channel for a printing medium to pass through is arranged between the first machine body and the second machine body, the first machine body is provided with a printing position, the printing medium is clamped and printed at the printing position, and the front side and the rear side of a paper guide roller are respectively provided with a polarization detection piece along the paper feeding direction. The deviation detecting piece comprises a first sensor and a second sensor which are used for detecting the position of paper and are respectively arranged at the left end and the right end of the paper feeding channel, and the connecting line of the first sensor and the second sensor is parallel to the axis of the printing position. Through all setting up the polarization detection piece in printing position both sides, during the paper feed, the polarization detection piece that is located the front side detects the paper earlier whether flushes with lead paper roll, if take place the skew, then do not print, alright take out the paper before the paper is by the centre gripping. When the paper moves to the rear side of the printing position, whether the paper deflects is detected again, and the fact that the paper does not deflect after being clamped is guaranteed.
Description
Technical Field
The utility model relates to a print the field, particularly, relate to a printer.
Background
At present, in the printing process of a printer, paper is mainly clamped by a rubber roller for guiding the paper and a printing head assembly, and the rubber roller rotates to drive the paper to move so as to pass through the printing head assembly, so that the printing of the paper is realized. In the printing process, paper deflection is easy to occur due to reasons of wrong paper feeding angle, uneven pressure applied by a rubber roller and the like, the printing effect is influenced, and paper jam of the printer is even caused in serious cases, so that printing cannot be performed.
In the prior art, the structure of a rubber roller is generally changed or a paper deviation adjusting structure is added in a printer, so that paper is straightened in the printing and paper feeding process. The inventor researches and discovers that the deviation adjusting structure often needs a long paper feeding distance to realize paper alignment, cannot be applied to small-sized printing equipment, and is complex.
SUMMERY OF THE UTILITY MODEL
The utility model provides a printer aims at improving the oblique problem of paper after the paper feed.
The utility model discloses a realize like this:
the utility model provides a printer, includes first organism, second organism, first organism with the paper feed passageway that supplies print medium to pass through has between the second organism, first organism has a print position, and print medium is in print position is by the centre gripping and is printed, along the paper feed direction, both sides all are equipped with the part of checking partially around printing the position, it is in including being used for detecting the paper position and setting up respectively to check partially the first sensor and the second sensor at both ends about the paper feed passageway, first sensor with the line of second sensor with the axis of print position is parallel.
Further, in the preferred embodiment of the present invention, the printer further comprises a control mechanism, each of the first sensor and the second sensor of the deviation detecting element send a detection signal to the control mechanism when detecting the paper, the control mechanism outputs a control signal when the time difference between the two detection signals is greater than the preset time, and the control mechanism controls the printer to close according to the control signal.
Further, in a preferred embodiment of the present invention, the second body has a printing head assembly thereon, the first body is reversibly fixed to the second body, and when the first body is covered on the second body, the printing medium is clamped between the paper guide roller and the printing head assembly at a position where the printing medium contacts the paper guide roller.
Further, in a preferred embodiment of the present invention, two of the polarization analyzing elements are disposed at the edges adjacent to both sides of the paper guide roller, respectively.
Further, in a preferred embodiment of the present invention, the distance between the first sensor and the second sensor of each analyzer is slightly smaller than the width of the printing medium.
Further, in the preferred embodiment of the present invention, the first sensor and the second sensor have the same structure, and each of the first sensor and the second sensor includes a transparent cover, a detection head and a circuit board, the circuit board is fixed to the first body, the transparent cover is connected to one side of the circuit board close to the paper feeding channel, and the detection head is connected to the circuit board and is accommodated in the transparent cover.
Further, in the preferred embodiment of the present invention, the opposite sides of the transparent cover are provided with elastic fastening pins, the circuit board is provided with an opening, and the elastic fastening pins can be inserted into the opening and fastened with the circuit board.
The utility model has the advantages that:
the utility model discloses a printer that above-mentioned design obtained, during the use, all set up through the both sides at the printing position and examine partial, during the paper feed, the examination partial that is located the printing position front side detects the paper earlier whether flush with the axis of printing the position, if take place the incline, then do not print to beat printing paper by before the centre gripping alright take out the paper. If the paper is not deflected, when the printing paper continues to move to the rear side of the printing position, whether the paper is deflected or not is detected again, and the fact that the paper is not deflected after being clamped is guaranteed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a printer according to embodiment 1 of the present invention in an open state of a first body;
fig. 2 is a schematic structural view of a printer according to embodiment 1 of the present invention in a first body closed state;
fig. 3 is a schematic structural diagram of the first body in fig. 1;
FIG. 4 is a cross-sectional view of FIG. 3 taken along the direction B-B;
fig. 5 is an exploded view of the second sensor of fig. 3.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "width", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Example 1
Referring to fig. 1 and 2, the present embodiment provides a printer 100 including a first body 110 and a second body 120, the first body 110 having a printing position, and a paper feeding path S between the first body 110 and the second body 120 for passing printing paper. The first body 110 is reversibly fixed to the second body 120, and when the first body 110 is covered on the second body 120, the printing medium is clamped and printed at the printing position.
In this embodiment, the printing position is provided with a paper guide roller 111, and the second body 120 is provided with a print head assembly 121. The paper guide roller 111 is used to convey paper, and the position where the paper contacts the paper guide roller 111 is sandwiched by the paper guide roller 111 and the head unit 121. It is understood that, in the present embodiment, the printing medium may be ordinary a4 paper, label paper, camera paper, or the like. The paper guide roller 111 presses the print head assembly 121, the paper enters from one side of the paper feed path S to reach the pressing position of the paper guide roller 111 and the print head assembly 121, the paper guide roller 121 rotates to provide friction for the paper, and the paper moves to the other side of the paper feed path S, thereby completing the printing process. The specific structure of the printhead assembly 121 and the paper guide roller 111 is conventional and will not be described in detail herein. For example, in one embodiment, printhead assembly 121 may be a thermal transfer assembly, including a thermal printhead assembly and a thermal ribbon assembly.
Referring to fig. 1 and 3, the direction indicated by the arrow X is a paper feeding direction, and the front and rear sides of the paper guide roller 111 are respectively provided with the polarization detecting elements 101 and 102 along the paper feeding direction, and the two polarization detecting elements have the same structure. That is, the polarization analyzing element 101 includes a first sensor 101A and a second sensor 101B respectively disposed at the left and right ends of the sheet feeding path S, and the polarization analyzing element 102 includes a first sensor 102A and a second sensor 102B respectively disposed at the left and right ends of the sheet feeding path S. The line connecting the first sensor and the second sensor of each polarization analyzing element is parallel to the axis of the printing position. That is, a line connecting the first sensor 101A and the second sensor 101B is parallel to the axis of the printing position, and a line connecting the first sensor 102A and the second sensor 102B is parallel to the axis of the printing position. The first sensors 101A, 102A and the second sensors 101B, 102B are each used to detect the position of the printing paper. In the present embodiment, the axis of the printing position is a printing line forming one line of the print content, and in the present embodiment, the axis of the printing position coincides with the central axis of the paper guide roller 111.
Further, the printer further includes a control mechanism 130, and the first sensors 101A, 102A and the second sensors 101B, 102B of the polarization analyzing elements 101, 102 each send a detection signal to the control mechanism 130 when detecting a sheet. The control mechanism 130 outputs a control signal when the time difference between the two detection signals is greater than the preset time, and the control mechanism 130 controls the printer to be closed according to the control signal. That is, the printing paper enters from the side of the paper feed path S, and when the first sensor 101A and the second sensor 101B detect the time difference Δ t of the signals1When the time is longer than the preset time T, the paper can be judged to be deflected, and the control mechanism 130 outputs a control signal to control the printer to be closed. At this time, the printing paper has not yet reached the printing position, and the printing paper has not yet been clamped by the paper guide roller 111, so that the user can directly draw out the printing paper without opening the first body 110. If the printing paper is not skewed (Deltat)1Less than or equal to T), the printing paper is continuedContinuously moving to the paper outlet by the paper guide roller 111, and detecting the signal time difference Deltat between the first sensor 102A and the second sensor 102B2When the time is longer than the preset time T, the paper can be judged to be deflected, and the control mechanism 130 outputs a control signal to control the printer to be closed. At this time, the paper is held by the paper guide roller 111, and the paper is released after the first body 110 is opened.
Further, the control mechanism 130 may be provided with an alarm at Δ t1、△t2And alarming when the time is more than the preset time T.
It is understood that in other embodiments, a plurality of polarization detection members may be disposed on both the front and rear sides of the sheet guide roller 111 to detect whether the sheet is skewed at different sheet feeding positions.
Further, two polarization analyzing members 101, 102 are respectively provided at edges adjacent to both sides of the sheet guide roller 111. Specifically, the first body 110 is provided with a guide roller groove 112, and the polarization detecting members 101 and 102 are respectively provided at the groove edges on both sides of the guide roller groove 112. The deviation detecting pieces 101 and 102 are arranged close to the paper guide roller 111, so that the situation that the paper continues to move to cause deviation after whether the paper is detected to be deviated or not is avoided, the deviation detecting pieces are arranged close to the paper guide roller 111, the paper can be effectively guaranteed to enter the paper guide roller at a parallel and level position, and the paper is still kept in a parallel and level state after being guided out by the paper guide roller 111.
Further, the spacing between the first sensor and the second sensor of each polarization analyzing element is slightly smaller than the width of the printing medium. That is, the pitch of 101A and 101B and the pitch of 102A and 102B are slightly smaller than the width of the printing paper, so that the first sensor and the second sensor can detect the positions of the left and right ends of the printing paper.
Referring to fig. 4 and 5, the first sensors 101A, 102A and the second sensors 101B, 102B have the same structure, and each include a transparent cover 103, a detection head 104 and a circuit board 105, and the circuit board 105 is fixed to the first body 110 by a fixing member such as a screw assembly. The transparent cover 130 is connected to a side of the circuit board 105 close to the paper feeding path S, and the detection head 104 is connected to the circuit board 105 and is accommodated in the transparent cover 130. The detection head 104 may be, for example, a photosensor. The detection head 104 is accommodated in the space enclosed by the transparent cover 130 and the circuit board 105, and the sensor is effectively protected.
Furthermore, the two opposite sides of the transparent cover 103 are provided with elastic clamping pins 103a, the circuit board 105 is provided with an opening 105a, and the elastic clamping pins 103a can be inserted into the opening 105a to be clamped with the circuit board 105. The detachable fit with the circuit board 105 is realized through the elastic clamping foot 103a, and the detachment is convenient.
Furthermore, two opposite corners of the transparent cover 103 are provided with positioning posts 103b, and the circuit board 105 is provided with positioning holes 105b matched with the positioning posts 103 b.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a printer, its characterized in that, includes first organism, second organism, first organism with the paper feed passageway that supplies print medium to pass through has between the second organism, first organism has a print position, and print medium is in print position is by the centre gripping and is printed, along the paper feed direction, both sides all are equipped with the part of checking partially around printing the position, it is in including being used for detecting the paper position and setting up respectively to check partially first sensor and the second sensor at both ends about the paper feed passageway, first sensor with the line of second sensor with the axis of print position is parallel.
2. The printer of claim 1, further comprising a control mechanism, wherein the first sensor and the second sensor of each polarization detector send detection signals to the control mechanism when detecting the paper, the control mechanism outputs control signals when the time difference between the two detection signals is greater than a preset time, and the control mechanism controls the printer to be turned off according to the control signals.
3. The printer of claim 1, wherein said printing position is provided with a paper guide roller, said second body has a printhead assembly thereon, said first body is pivotably secured to said second body, and when said first body is closed on said second body, the print medium is gripped by said paper guide roller and said printhead assembly in a position where it contacts said paper guide roller.
4. The printer of claim 3, wherein two of said polarization-detecting members are disposed adjacent edges of both sides of said paper-guide roller, respectively.
5. The printer of claim 1, wherein the spacing between the first sensor and the second sensor of each polarization analyzing element is slightly less than the width of the print medium.
6. The printer according to claim 1, wherein the first sensor and the second sensor have the same structure and each include a transparent cover, a detection head, and a circuit board, the circuit board is fixed to the first body, the transparent cover is connected to a side of the circuit board close to the paper feeding path, and the detection head is connected to the circuit board and is accommodated in the transparent cover.
7. The printer according to claim 6, wherein the transparent cover is provided with elastic clips at opposite sides thereof, the circuit board is provided with an opening, and the elastic clips can be inserted into the opening to be engaged with the circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822237523.4U CN209851831U (en) | 2018-12-28 | 2018-12-28 | Printer and printing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822237523.4U CN209851831U (en) | 2018-12-28 | 2018-12-28 | Printer and printing method |
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| Publication Number | Publication Date |
|---|---|
| CN209851831U true CN209851831U (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822237523.4U Active CN209851831U (en) | 2018-12-28 | 2018-12-28 | Printer and printing method |
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| Country | Link |
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| CN (1) | CN209851831U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111873640A (en) * | 2020-06-30 | 2020-11-03 | 厦门汉印电子技术有限公司 | Portable printer, state detection method, state detection device and storage medium |
| CN111873641A (en) * | 2020-06-30 | 2020-11-03 | 厦门汉印电子技术有限公司 | Portable printer |
| CN113211995A (en) * | 2021-04-30 | 2021-08-06 | 珠海纳思达莱曼科技有限公司 | Imaging device |
| CN113601982A (en) * | 2021-08-20 | 2021-11-05 | 珠海纳思达莱曼科技有限公司 | Image forming apparatus |
-
2018
- 2018-12-28 CN CN201822237523.4U patent/CN209851831U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111873640A (en) * | 2020-06-30 | 2020-11-03 | 厦门汉印电子技术有限公司 | Portable printer, state detection method, state detection device and storage medium |
| CN111873641A (en) * | 2020-06-30 | 2020-11-03 | 厦门汉印电子技术有限公司 | Portable printer |
| CN111873640B (en) * | 2020-06-30 | 2022-07-12 | 厦门汉印电子技术有限公司 | Portable printer, state detection method, state detection device and storage medium |
| CN113211995A (en) * | 2021-04-30 | 2021-08-06 | 珠海纳思达莱曼科技有限公司 | Imaging device |
| CN113601982A (en) * | 2021-08-20 | 2021-11-05 | 珠海纳思达莱曼科技有限公司 | Image forming apparatus |
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