Ink test device and test method thereof

Abstract

The invention provides an ink test device and a test method of the ink test device. The ink test device comprises a vibration chamber, a receiving chamber, a sound production device, an acoustical-electrical transducer, a controller, wherein the vibration chamber and the receiving chamber are arranged at the two sides of the upper part of an ink box and are communicated with the ink chamber of the ink box; section areas of the vibration chamber and the receiving chamber are the same; the sound production device is connected on the vibration chamber by a manner of sealing; the acoustical-electrical transducer is connected on the receiving chamber by a manner of sealing; the controller is electronically connected with the sound production device and the acoustical-electrical transducer; the controller is used for transmitting a control signal to the sound production device, is used for receiving a receiving signal of the acoustical-electrical transducer, and analyzing the signals to obtain ink information. With the adoption of the ink test device and the test method of the ink test device, the sound transmission characteristics of sound waves in variable section tubes are utilized, and the ink chamber is used as the insertion tubes of sound transmission tubes, so that the sound waves pass through the sound transmission tubes; the transmission coefficient of the sound waves is related to the section area of the ink chamber, later the section area of the ink chamber can be obtained according to the sound intensity value of the sound saves after passing through the ink chamber, and then the ink information can be obtained.

Description

technical field [0001] The invention relates to a printer, in particular to a detection device and a detection method for the ink volume of a printer ink box. Background technique [0002] When an inkjet printer is working, it will continue to consume ink until the ink in the ink cartridge is exhausted. If the consumer fails to get the prompt message that the ink is exhausted and continues to print, it will not only cause waste of paper, but also damage the inkjet printer and affect the printing quality. In order for the user to obtain the warning information of the ink exhaustion in time, it is necessary to design a detection device for preventing the inkjet printer from still working when the ink in the ink cartridge is exhausted. [0003] At present, there are three main types of ink detection devices for inkjet printers: 1. Light-sensing detection devices. After the inkjet printer sends the light beam, it is reflected by the reflector on the ink cartridge. When there is...

AI Technical Summary

Problems solved by technology

Its deficiency is that it is impossible to judge the specific amount of ink; 2, the resistance detection device, there are two contacts in the ink cartridge, when the two contacts are filled with ink, the ink acts as a resistance, and the inkjet printer detects the difference between the two contacts. The remaining ink can be judged by the resistance value between them; 3. The piezoelectric element detection device measures the remaining ink amount in the ink chamber through the squeezing force of the ink in the ink cartridge on the piezoelectric element

These kinds of detection devices all need conductors or mirrors to extend into the ink chamber. The conductors are in contact with the ink, which is easy to affect the quality of the ink, and it occupies a space volume that reduces the ink storage capacity of the ink cartridge.

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