Printer thermo-sensitive paper reverse loading detection device and method based on image sensing technology
An image sensing and detection device technology, which is applied in the field of thermal paper reverse detection in printers, can solve the problems that thermal paper cannot print out images, increase power consumption, affect user experience, etc., and avoid the problem of reverse thermal paper , easy method, low cost effect
Active Publication Date: 2018-07-13
XIAMEN INTRETECH
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In both cases, thermal paper may fail to print images, affecting user experience and increasing unnecessary power consumption
At the same time, it may also cause some users who do not understand the principle of thermal printers to think that "the printer is broken".
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[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0028] The embodiment of the present invention provides a printer thermal paper detection device based on image sensing technology, as shown in the attached figure 1 As shown, it includes an image analysis chip 3 installed with an image sensor 12 and a light-emitting diode 11 and connected to the image sensor 12 under the bottom surface of the carton groove for accommodating the thermal paper roll 1;
[0029] The light-emitting diode 11 is used to emit first light, and the first light is reflected by the surface of the thermal paper to form a second lig...
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The invention discloses a printer thermo-sensitive paper reverse loading detection device and method based on an image sensing technology. The device comprises an image sensor, a light emitting diodeand an image analysis chip connected to the image sensor. The light emitting diode is used for emitting first light rays. The first light rays are reflected by thermo-sensitive paper surfaces and formsecond light rays. The second light rays are transmitted into the image sensor for imaging through an optical lens of the image sensor. When a thermo-sensitive printer operates, thermo-sensitive paper are rotated for output, and the image sensor is used for recording a set of seamless images photographed at a high speed; and the image analysis chip analyzes and processes the set of seamless images and judges forward rotation and reverse rotation of the thermo-sensitive paper by analyzing the changes of feature point positions on the images so as to judge whether a user place the thermo-sensitive paper in the right direction or not. According to the detection device and method, the thermo-sensitive paper reverse loading problem of the thermo-sensitive printer can be effectively solved, andthe device and method have the characteristics that the device is simple and low in cost, and the method is easy to implement.
Description
technical field [0001] The present invention relates to the field of heat-sensitive printing, and in particular to a method and device for detecting reversed installation of heat-sensitive paper in a printer based on image sensing technology. Background technique [0002] At present, some thermal printers on the market remind users of the correct installation method of thermal paper through the schematic diagram set on the thermal printer body, and some thermal printers do not mark the installation schematic diagram of thermal paper on the body of the thermal printer. Instructions for installation are given in the manual. In both cases, it is possible that the thermal paper cannot print out the image, which affects the user experience and increases unnecessary power consumption. At the same time, it may also cause some users who do not understand the principle of thermal printers to think that "the printer is broken". Contents of the invention [0003] The purpose of the...
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IPC IPC(8): B41J11/00G06T1/00G06T7/00G06F3/12
CPCB41J11/00G06F3/121G06T1/0007G06T7/0002
Inventor 杨连池林春婷林松华杨明
Owner XIAMEN INTRETECH