Calibration plate and printing device comprising the same

Abstract

The utility model provides a kind of calibration plate and the printing device comprising it.The calibration plate is used to calibrate the scanning head of printer, and the calibration plate includes plate body, and the plate body includes first calibration edge and second calibration edge, first calibration edge and second calibration edge intersect, and the extension direction of first calibration edge and second calibration edge is perpendicular, in the axial direction of plate body, the projection of first calibration edge coincides with the projection of the first length side of printer's glass, and the projection of second calibration edge coincides with the projection of the first width side of printer's glass;First calibration point and second calibration point are drawn on the placement surface of plate body;Wherein, the distance of first calibration point from first calibration edge in the extension direction of second calibration edge is h1, 1mm≤h1≤20mm;And the distance of first calibration point from second calibration edge in the extension direction of first calibration edge is h2, 1mm≤h2≤20mm.

Description

Technical Field

[0001] This utility model relates to the field of printing, and in particular to a calibration plate and a printing device including the same. Background Technology

[0002] As a core device for information processing in modern offices and homes, printers have expanded their applications from traditional document output to high-precision image copying, digital archiving, and many other fields. With users' increasing demands for copying and scanning quality, ensuring that the scanning head can completely and accurately capture document content, especially details in edge areas, has become a crucial aspect of improving the overall performance of the equipment.

[0003] In current printer scanner head calibration processes, a common method is to use a standard grid calibration plate. This calibration plate is typically a transparent flat plate with a precise grid-like coordinate pattern printed on its surface. These coordinate lines form multiple perpendicular longitudinal and transverse edges, which can theoretically be aligned with the first length and first width edges of the printer's glass plate, respectively. During calibration, technicians place the calibration plate on the glass plate and manually adjust it by visual observation so that a major coordinate edge roughly coincides with the physical edge of the glass. However, this grid-based calibration method is highly dependent on the operator's visual judgment and manual alignment ability. Minor misalignments between the glass edge and the coordinate edge are unavoidable, directly introducing initial human error. This leads to insufficient accuracy in the scanning start point positioning, potentially causing the omission of document edge information during scanning, thus affecting the integrity and accuracy of the scanned document. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a calibration plate and a printing device including the same.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] This utility model discloses a calibration plate for calibrating the scanning head of a printer. The calibration plate includes a plate body, which includes a first calibration edge and a second calibration edge. The first calibration edge and the second calibration edge intersect each other, and their extending directions are perpendicular. In the axial direction of the plate body, the projection of the first calibration edge coincides with the projection of the first length edge of the printer's glass, and the projection of the second calibration edge coincides with the projection of the first width edge of the printer's glass.

[0007] The placement surface of the plate body is marked with a first calibration point and a second calibration point. The line connecting the first calibration point and the second calibration point is parallel to the second calibration edge. The first calibration point is closer to the first calibration edge than the second calibration point. The placement surface is used to fit against the glass of the printer.

[0008] Wherein, the distance from the first calibration point to the first calibration edge in the extension direction of the second calibration edge is h1, 1mm≤h1≤20mm; and the distance from the first calibration point to the second calibration edge in the extension direction of the first calibration edge is h2, 1mm≤h2≤20mm.

[0009] In this solution, using the aforementioned structure, the document is placed flush against the first length edge and the first width edge when the printer prints it. The printer's scanning operation begins near the intersection of the first length edge and the first width edge. During the printer's calibration process using a calibration plate, the scanning head first contacts the edge of the printer body that is parallel to and closest to the first width edge. This contact determines the distance between the edge of the printer body and the first calibration point, allowing the scanning head to record the position of the scanning start point. This process helps prevent the scanning head from missing document edge areas, improving the completeness of document scanning. Furthermore, the line connecting the first and second calibration points forms an angle with the axis of the scanning head. When this angle is within a preset range, it can be determined that the scanning head's placement position is not offset, further ensuring the accuracy of the scanning head's document capture.

[0010] Preferably, h1=10mm; h2=11mm.

[0011] Preferably, the plate body further includes a third calibration edge and a fourth calibration edge, wherein the first calibration edge, the second calibration edge, the third calibration edge and the fourth calibration edge are connected end to end to form the placement surface.

[0012] In this solution, the above-mentioned structural form is adopted, and the first calibration edge, the second calibration edge, the third calibration edge and the fourth calibration edge are connected end to end to form a placement surface, so that the outline of the plate body is more complete and regular, which facilitates the processing of the plate body.

[0013] Preferably, in the axial direction of the plate body, the projection of the third calibration edge coincides with the projection of the second length edge of the glass, and the projection of the fourth calibration edge coincides with the projection of the second width edge of the glass.

[0014] In this solution, the above-mentioned structural form is adopted, with the third calibration edge coinciding with the second length edge of the glass and the fourth calibration edge coinciding with the left width edge of the glass. Together with the first and second calibration edges, they work together to ensure that the four edges of the plate body correspond perfectly with the four edges of the glass, which facilitates the positioning of the plate body when it is placed on the glass.

[0015] Preferably, the distance between the second calibration point and the third calibration edge in the extension direction of the second calibration edge is h3, where 1mm ≤ h3 ≤ 20mm; and the distance between the second calibration point and the second calibration edge in the extension direction of the first calibration edge is h4, where 1mm ≤ h4 ≤ 20mm.

[0016] Preferably, h3=10mm; h4=11mm.

[0017] Preferably, the calibration plate includes a handle that is welded to the surface of the calibration plate away from the glass of the printer.

[0018] In this solution, the above-mentioned structure is adopted, and the handle is welded to the surface of the calibration plate away from the printer glass, providing the operator with a dedicated grip and making the picking and putting of the calibration plate more convenient.

[0019] Preferably, the surface of the handle facing the calibration plate is arc-shaped, and a receiving cavity is formed between the surface of the handle facing the calibration plate and the surface of the plate body facing the handle.

[0020] In this design, the aforementioned structural form is adopted, with the handle's surface facing the calibration plate being arc-shaped, forming a receiving cavity between this surface and the plate body's surface facing the handle. This structure provides a natural placement space for the fingers, making the grip more ergonomic. The presence of the receiving cavity increases the contact area between the fingers and the handle, improving grip stability and comfort.

[0021] Preferably, the plate body includes a first mounting plate and a second mounting plate, the hardness of the first mounting plate is greater than the hardness of the second mounting plate, and the surface of the first mounting plate facing the glass is connected to the second mounting plate.

[0022] The first calibration point and the second calibration point are drawn on the surface of the second mounting plate facing the glass; and the surface of the second mounting plate facing the glass is provided with a pattern.

[0023] In this solution, the above-mentioned structural form is adopted, which facilitates the processing of the first calibration point and the second calibration point on the second mounting plate.

[0024] This utility model discloses a printing device, which includes a printer and a calibration plate as described above.

[0025] In this solution, using the aforementioned structure, the document is placed flush against the first length edge and the first width edge when the printer prints it. The printer's scanning operation begins near the intersection of the first length edge and the first width edge. During calibration, the scanning head first contacts the edge of the printer body that is parallel to and closest to the first width edge. This contact determines the distance between the edge of the printer body and the first calibration point, allowing the scanning head to record the position of the scanning start point. This process helps prevent the scanning head from missing document edge areas, improving the completeness of document scanning. Furthermore, the line connecting the first and second calibration points forms an angle with the axis of the scanning head. When this angle is within a preset range, it can be determined that the scanning head's placement position is not offset, further ensuring the accuracy of the scanning head's document capture.

[0026] The positive and progressive effects of this utility model are as follows:

[0027] With the above-described structure, when the printer prints a document, the document is placed close to the first length edge and the first width edge. The printer's scanning operation begins near the area where the first length edge and the first width edge intersect. During calibration, the scanning head first contacts the edge of the printer body that is parallel to and closest to the first width edge. This contact determines the distance between the edge of the printer body and the first calibration point, allowing the scanning head to record the position of the scanning start point. This process helps prevent the scanning head from missing document edge areas, improving the completeness of document scanning. Furthermore, the line connecting the first and second calibration points forms an angle with the axis of the scanning head. When this angle is within a preset range, it can be determined that the scanning head's placement position is not offset, further ensuring the accuracy of the scanning head's document capture. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the calibration plate according to an embodiment of the present invention.

[0029] Figure 2 This is a schematic diagram of the calibration plate (including the first calibration point and the second calibration point) according to an embodiment of the present invention.

[0030] Figure 3 This is a schematic diagram of the printing device according to an embodiment of the present invention.

[0031] Figure 4 This is a schematic diagram of the printer structure according to an embodiment of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] Printing device 1000

[0034] Calibration plate 100

[0035] Board body 1

[0036] First calibration edge 11

[0037] Second calibration edge 12

[0038] First calibration point 13

[0039] Second calibration point 14

[0040] Third calibration edge 15

[0041] Fourth calibration edge 16

[0042] Handle 2

[0043] Receiving cavity 21

[0044] Printer 200

[0045] First length side 2001

[0046] Second length side 2002

[0047] First width side 2003

[0048] Second width side 2004

[0049] Glass 2005 Detailed Implementation

[0050] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0051] like Figure 3 and Figure 4 As shown, this embodiment provides a printing device 1000, which includes a printer 200 and a calibration plate 100.

[0052] Among them, such as Figures 1 to 4As shown, the calibration plate 100 is used to calibrate the scanning head of the printer 200. The calibration plate 100 includes a plate body 1, which includes a first calibration edge 11 and a second calibration edge 12. The first calibration edge 11 and the second calibration edge 12 intersect, and their extending directions are perpendicular. Axially, the projection of the first calibration edge 11 coincides with the projection of the first length edge 2001 of the glass 2005 of the printer 200, and the projection of the second calibration edge 12 coincides with the projection of the first width edge 2003 of the glass 2005 of the printer 200. The plate body 1... A first calibration point 13 and a second calibration point 14 are marked on the mounting surface. The line connecting the first calibration point 13 and the second calibration point 14 is parallel to the second calibration edge 12. The first calibration point 13 is closer to the first calibration edge 11 than the second calibration point 14. The mounting surface is designed to fit against the glass 2005 of the printer 200. The distance from the first calibration point 13 to the first calibration edge 11 in the extension direction of the second calibration edge 12 is h1, where 1mm ≤ h1 ≤ 20mm; and the distance from the first calibration point 13 to the second calibration edge 12 in the extension direction of the first calibration edge 11 is h2, where 1mm ≤ h2 ≤ 20mm. With this structure, when the printer 200 prints a document, the document will be placed close to the first length edge 2001 and the first width edge 2003. The scanning operation of the printer 200 begins near the area where the first length edge 2001 and the first width edge 2003 intersect. During the calibration process of printer 200 using calibration plate 100, the scanning head first contacts the edge of printer 200 body that is parallel to and closest to the first width edge 2003. This contact determines the distance between the edge of printer 200 body and the first calibration point 13, enabling the scanning head to record the position of the scanning start point. This process helps prevent the scanning head from missing document edge areas, improving the integrity of document scanning. Furthermore, the line connecting the first calibration point 13 and the second calibration point 14 forms an angle with the axis of the scanning head. When this angle is within a preset range, it can be determined that the scanning head's placement is not offset, further ensuring the accuracy of document capture by the scanning head.

[0053] It should be specifically noted that in this embodiment, the scanning operation starts from the upper right corner area. Therefore, the first length side 2001 corresponds to the upper length side of the glass 2005, and the first width side 2003 corresponds to the right width side of the glass 2005. It should also be noted that in different application scenarios, the specific positions of the first length side 2001 and the first width side 2003 can be set according to the actual scanning starting point or device structure, and are not limited to the method described in this embodiment. Furthermore, the axial direction of the plate body 1 refers to the direction parallel to the axial direction of the printer 200 when the plate body 1 is placed on the glass 2005.

[0054] Preferably, h1 = 10 mm; h2 = 11 mm. In other embodiments, the values ​​of h1 and h2 can be adjusted according to actual needs, and are not limited here.

[0055] like Figures 1 to 3 As shown, the plate body 1 also includes a third calibration edge 15 and a fourth calibration edge 16. The first calibration edge 11, the second calibration edge 12, the third calibration edge 15, and the fourth calibration edge 16 are connected end to end to form a placement surface. Using the above structural form, by connecting the first calibration edge 11, the second calibration edge 12, the third calibration edge 15, and the fourth calibration edge 16 end to end to form a placement surface, the outline of the plate body 1 is more complete and regular, facilitating the processing of the plate body 1.

[0056] It should be noted that, in this embodiment, the first calibration edge 11, the second calibration edge 12, the third calibration edge 15, and the fourth calibration edge 16 form a rectangular placement surface. In other embodiments, the shape of the placement surface formed by the first calibration edge 11, the second calibration edge 12, the third calibration edge 15, and the fourth calibration edge 16 can be adjusted according to actual needs, and is not limited here.

[0057] like Figure 3 As shown, along the axial direction of the plate body 1, the projection of the third calibration edge 15 coincides with the projection of the second length edge 2002 of the glass 2005, and the projection of the fourth calibration edge 16 coincides with the projection of the second width edge 2004 of the glass 2005. With this structure, the third calibration edge 15 coincides with the second length edge 2002 of the glass 2005, and the fourth calibration edge 16 coincides with the left width edge of the glass 2005. Together with the first calibration edge 11 and the second calibration edge 12, these elements ensure that the four edges of the plate body 1 correspond perfectly with the four edges of the glass 2005, facilitating the positioning of the plate body 1 when placed on the glass 2005.

[0058] It should be specifically noted that the second length side 2002 corresponds to the lower length side of the glass 2005, and the second width side 2004 corresponds to the left width side of the glass 2005. The upper length side, left width side, lower length side, and right width side form the scanning plane in the glass 2005 where the scanned document is placed.

[0059] In this embodiment, the distance from the second calibration point 14 to the third calibration edge 15 in the extension direction of the second calibration edge 12 is h3, where 1mm ≤ h3 ≤ 20mm; and the distance from the second calibration point 14 to the second calibration edge 12 in the extension direction of the first calibration edge 11 is h4, where 1mm ≤ h4 ≤ 20mm. Preferably, h3 = 10mm; h4 = 11mm.

[0060] In other embodiments, the values ​​of h3 and h4 can be adjusted according to actual needs, and are not limited here.

[0061] like Figure 1 and Figure 3 As shown, the calibration plate 100 includes a handle 2, which is welded to the surface of the calibration plate 100 away from the glass 2005 of the printer 200. With this structure, the handle 2, welded to the surface of the calibration plate 100 away from the glass 2005 of the printer 200, provides a dedicated grip for the operator, making the handling of the calibration plate 100 more convenient.

[0062] In this embodiment, the handle 2 is welded to the middle area of ​​the calibration plate 100. In other embodiments, the welding position of the handle 2 can be adjusted according to actual needs, and is not limited here.

[0063] The surface of the handle 2 facing the calibration plate 100 is arc-shaped, forming a receiving cavity 21 between this surface and the surface of the plate body 1 facing the handle 2. This structure provides a natural placement space for the fingers, making the grip more ergonomic. The presence of the receiving cavity 21 increases the contact area between the fingers and the handle 2, improving grip stability and comfort.

[0064] The plate body 1 includes a first mounting plate (not shown in the figure) and a second mounting plate (not shown in the figure). The hardness of the first mounting plate is greater than that of the second mounting plate. The surface of the first mounting plate facing the glass 2005 is connected to the second mounting plate. The first calibration point 13 and the second calibration point 14 are drawn on the surface of the second mounting plate facing the glass 2005. The surface of the second mounting plate facing the glass 2005 is also patterned. This structural design facilitates the machining of the first calibration point 13 and the second calibration point 14 on the second mounting plate.

[0065] It should be noted that in this embodiment, the first mounting plate is made of a high-density metal material, utilizing its own weight to ensure the adhesion between the second mounting plate and the surface of the glass 2005. The first calibration point 13 and the second calibration point 14 on the second mounting plate are marked in black, but this color is not fixed and can be adjusted according to actual needs. Furthermore, the plate is also processed with professional patterns for printer 200 testing. The specific form and processing method of these patterns are existing technology and will not be detailed here.

[0066] In practical use, the first mounting plate and the second mounting plate are bonded together, with the first mounting plate being a metal plate and the second mounting plate being made of photographic paper or a plastic sheet. In other embodiments, the connection method and materials of the first and second mounting plates can be adjusted according to actual needs and are not limited here.

[0067] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A calibration plate, characterized in that, The calibration plate is used to calibrate the scanner head of the printer. The calibration plate includes a plate body, which includes a first calibration edge and a second calibration edge. The first calibration edge and the second calibration edge intersect each other, and their extension directions are perpendicular. In the axial direction of the plate body, the projection of the first calibration edge coincides with the projection of the first length edge of the printer's glass, and the projection of the second calibration edge coincides with the projection of the first width edge of the printer's glass. The placement surface of the plate body is marked with a first calibration point and a second calibration point. The line connecting the first calibration point and the second calibration point is parallel to the second calibration edge. The first calibration point is closer to the first calibration edge than the second calibration point. The placement surface is used to fit against the glass of the printer. Wherein, the distance from the first calibration point to the first calibration edge in the extension direction of the second calibration edge is h1, 1mm≤h1≤20mm; and the distance from the first calibration point to the second calibration edge in the extension direction of the first calibration edge is h2, 1mm≤h2≤20mm.

2. The calibration plate as described in claim 1, characterized in that, h1=10mm; h2=11mm.

3. The calibration plate as described in claim 1, characterized in that, The plate body also includes a third calibration edge and a fourth calibration edge, and the first calibration edge, the second calibration edge, the third calibration edge and the fourth calibration edge are connected end to end to form the placement surface.

4. The calibration plate as described in claim 3, characterized in that, Along the axial direction of the plate body, the projection of the third calibration edge coincides with the projection of the second length edge of the glass, and the projection of the fourth calibration edge coincides with the projection of the second width edge of the glass.

5. The calibration plate as described in claim 3, characterized in that, The distance between the second calibration point and the third calibration edge in the extension direction of the second calibration edge is h3, where 1mm ≤ h3 ≤ 20mm; and the distance between the second calibration point and the second calibration edge in the extension direction of the first calibration edge is h3, where 1mm ≤ h3 ≤ 20mm.

6. The calibration plate as described in claim 5, characterized in that, h3=10mm; h4=11mm.

7. The calibration plate as described in claim 1, characterized in that, The calibration plate includes a handle that is welded to the surface of the calibration plate away from the glass of the printer.

8. The calibration plate as described in claim 7, characterized in that, The surface of the handle facing the calibration plate is arc-shaped, and a receiving cavity is formed between the surface of the handle facing the calibration plate and the surface of the plate body facing the handle.

9. The calibration plate according to any one of claims 1-8, characterized in that, The plate body includes a first mounting plate and a second mounting plate. The hardness of the first mounting plate is greater than that of the second mounting plate. The surface of the first mounting plate facing the glass is connected to the second mounting plate. The first calibration point and the second calibration point are drawn on the surface of the second mounting plate facing the glass; and the surface of the second mounting plate facing the glass is provided with a pattern.

10. A printing apparatus, characterized in that, The printing apparatus includes a printer and a calibration plate as described in any one of claims 1-9.

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