CN-121989558-A - Label printer

Abstract

The embodiment of the application discloses a label printer, which comprises a printer main body, wherein an external paper inlet, a paper bin and a printing table top are sequentially arranged on the printer main body in the paper outlet direction of label paper, and a sensor and a printing assembly for printing the label paper are arranged on the printing table top. According to the embodiment of the application, the projection of the printing table surface and the external paper inlet on the first projection surface is arranged at intervals in the first direction of the printer main body, so that the detection precision of the sensor is improved.

Inventors

• LUO HAO
• Lei Zeyi
• LI MINGMENG
• TANG JIAN

Assignees

• 武汉精臣智慧标识科技有限公司

Dates

Publication Date

20260508

Application Date

20251231

Claims (15)

1. 1. A label printer, comprising: the label paper printing device comprises a printer main body, wherein an external paper inlet, a paper bin and a printing table top are sequentially arranged on the printer main body in the paper outlet direction of label paper; The printing table is provided with a sensor and a printing assembly for printing the label paper, the printing table and the projection of the external paper inlet on a first projection surface are arranged at intervals in a first direction of the printer main body, the first direction is perpendicular to the paper outlet direction, and the first projection surface is parallel to the first direction.
2. 2. The label printer as in claim 1, wherein in said first direction, said print table and said sensor are both above or below said external feed port.
3. 3. The label printer as in claim 2, wherein the print table and the sensor are both higher than the external paper feed port, and the sensor is not less than 20mm and not more than 60mm in height from the external paper feed port.
4. 4. The label printer as in claim 2, wherein said external feed port has a height dimension in said first direction of no less than 5mm and no greater than 15mm.
5. 5. The label printer as in claim 2, wherein the distance from said external feed port to said printing table is no less than 70mm and no more than 150mm in said feed direction.
6. 6. The label printer as in claim 2, wherein the paper magazine comprises: The rear bin wall is arranged adjacent to the printing table surface, and along the paper outlet direction, the projection of the external paper inlet falls into the rear bin wall.
7. 7. The label printer as in claim 6, wherein said rear bin wall is arcuate and concave in a direction away from said external feed port.
8. 8. The label printer as in claim 7, further comprising: The sliding plate is arranged in the paper bin, the rear bin wall is provided with a first sliding groove, and the sliding plate part extends into the first sliding groove so as to slide along a second direction of the label printer; Along the first direction, the first chute is higher than the external paper inlet, and the second direction is perpendicular to the first direction.
9. 9. The label printer as in claim 8, wherein said printing deck, said first chute, and said external paper feed are sequentially spaced apart along a first top-to-bottom direction.
10. 10. The label printer as in claim 9, wherein the height dimension of said first chute in said first direction is no less than 5mm and no greater than 15mm.
11. 11. The label printer as in claim 8, further comprising: The light blocking piece is arranged below the sensor and used for blocking stray light transmitted from the first chute to the sensor.
12. 12. The label printer as in claim 11, wherein said print deck has a second chute, said sensor being slidably mounted within said second chute; the light blocking piece is arranged in the second sliding groove, so that the light blocking piece can block the notch below the second sliding groove.
13. 13. The label printer as in claim 1, further comprising: the cover plate is movably connected with the printer main body; The cover plate comprises a convex part which faces the printing table top and the sensor, so that the distance from the cover plate to the printing table top along the first direction is shortened.
14. 14. The label printer as in claim 13, wherein the spacing of the boss to the print table in the first direction is no less than 0.5mm and no more than 2mm.
15. 15. A label printer as claimed in any one of claims 2 to 14, wherein the difference in height between the detection face of the sensor and the printing table is no more than 5mm.

Description

Label printer Technical Field The application relates to the technical field of printing equipment, in particular to a label printer. Background The label refers to the literal, graphic and symbol and all explanatory matters on the product, and is widely applied to the scenes of super-retail business, industrial production, express delivery, clothing, office management and the like. The label printer is used for printing label paper. In the related art, the label printer comprises an external paper inlet and a printing table surface, the printing table surface is provided with a sensor, and the printing table surface and the external paper inlet are generally overlapped, so that external light is easily led to directly irradiate the sensor through the external paper inlet, and the detection precision of the sensor is reduced. Disclosure of Invention The embodiment of the application provides a label printer, which aims to improve the detection precision of a sensor. The embodiment of the application provides a label printer, which comprises a printer main body, wherein an external paper inlet, a paper bin and a printing table surface are sequentially arranged on the printer main body in the paper outlet direction of label paper, a sensor and a printing assembly for printing the label paper are arranged on the printing table surface, the printing table surface and the projection of the external paper inlet on a first projection surface are arranged at intervals in the first direction of the printer main body, the first direction is mutually perpendicular to the paper outlet direction, and the first projection surface is parallel to the first direction. In some embodiments, along the first direction, the printing table and the sensor are both higher or both lower than the external paper feed port. In some embodiments, the printing table and the sensor are both higher than the external paper inlet, and the difference in height between the sensor and the external paper inlet is not less than 20mm and not more than 60mm. In some embodiments, the height dimension of the external paper feed port is not less than 5mm and not more than 15mm along the first direction. In some embodiments, a distance from the external paper inlet to the printing table is not less than 70mm and not more than 150mm along the paper outlet direction. In some of these embodiments, the paper bin includes a rear bin wall disposed adjacent the printing deck and in the paper output direction, a projection of the external paper feed opening falls into the rear bin wall. In some embodiments, the rear bin wall is arc-shaped and concavely arranged in a direction away from the external paper inlet. In some embodiments, the label printer further comprises a sliding plate, the sliding plate is arranged in the paper bin, the rear bin wall is provided with a first sliding groove, the sliding plate part stretches into the first sliding groove to slide along a second direction of the label printer, the first sliding groove is higher than the external paper inlet along the first direction, and the second direction is perpendicular to the first direction. In some embodiments, along a first direction from top to bottom, the printing table, the first chute and the external paper feeding port are sequentially arranged at intervals. In some of these embodiments, the height dimension of the first runner in the first direction is no less than 5mm and no greater than 15mm. In some embodiments, the label printer further comprises a light blocking member disposed below the sensor for blocking stray light transmitted from the first chute to the sensor. In some embodiments, the printing table has a second chute, and the sensor is slidably mounted in the second chute, wherein the light blocking member is disposed in the second chute such that the light blocking member blocks a notch below the second chute. In some embodiments, the label printer further comprises a cover plate movably connected to the printer body, wherein the cover plate comprises a protrusion protruding toward the printing table surface and the sensor to shorten a distance between the cover plate and the printing table surface along the first direction. In some of these embodiments, the spacing of the raised portions from the printing table in the first direction is no less than 0.5mm and no greater than 2mm. In some of these embodiments, the difference in height between the detection surface of the sensor and the printing table is no more than 5mm. According to the embodiment of the application, the external paper inlet, the paper bin and the printing table top are arranged on the printer main body, and the projections of the printing table top and the external paper inlet on the first projection surface are arranged at intervals in the first direction of the printer main body, namely, the printing table top and the external paper inlet are arranged in a non-opposite mode in the first direction, so