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Device and method for determining resistance value of printing head and printer

A technology for determining devices and print heads, applied in printing devices, printing, etc., can solve problems such as the accuracy of thermal resistance resistance of the print head and low work efficiency, achieve improved accuracy and work efficiency, simple structure, and improved user experience degree of effect

Active Publication Date: 2021-06-08
重庆打贴匠科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a print head resistance determination device, method and printer, which are used to solve the problem of low accuracy and work efficiency in determining the print head thermal resistance resistance in the related art technical issues

Method used

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  • Device and method for determining resistance value of printing head and printer
  • Device and method for determining resistance value of printing head and printer
  • Device and method for determining resistance value of printing head and printer

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Embodiment 1

[0051] see figure 1 , an embodiment of the present invention provides a print head resistance detection device, including:

[0052] The control module 1 is respectively connected to the detection power switch 2, the working power switch 3, the printing head 5, and the voltage dividing resistor 6, and is used to respectively control the working states of the printing head 5, the detection power switch 2, and the working power switch 3;

[0053] The heating power supply 8 is respectively connected to the detection power switch 2, the working power switch 3 and the voltage dividing resistor 6;

[0054] The current sampling resistor 9 is connected to the detection power switch 2 respectively;

[0055] The print head 5 is also connected to the current sampling resistor 9 and the working power switch 3 respectively.

[0056] Optionally, the voltage dividing resistor is used to divide the heating power supply.

[0057] Optionally, the print head is grounded.

[0058] In some embo...

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Abstract

The invention provides a device and a method for determining a resistance value of a printing head and a printer. The device comprises a control module which is respectively connected to a detection power switch, a working power switch, a printing head and a divider resistor and is used for respectively controlling the working states of the printing head, the detection power switch and the working power switch, a heating power supply which is respectively connected to the detection power switch, the working power switch and the divider resistor, and a current sampling resistor which is connected to the detection power switch, wherein the printing head is further connected to the current sampling resistor and the working power switch; and the accuracy and the working efficiency of determination of the resistance value of the heating resistor of the printing head are improved, the resistance value determination speed is high, the heating resistor with abnormal resistance can be determined in time, the printing quality is ensured, and the user experience is improved.

Description

technical field [0001] The invention relates to the technical field of printers, in particular to a device and method for determining the resistance value of a print head and a printer. Background technique [0002] The quality of the printed product of the printer is closely related to the distribution and quantity of the dead pixels of the print head. If the number of dead pixels is large, the printing effect will be poor, and even the printed content cannot be distinguished. Therefore, it is necessary to detect the dead pixels of the print head in time and accurately. [0003] In the related technology, due to the process deviation of the print head, the resistance value of the heating resistor in each print head has an accuracy error (such as 10%). In order to understand how to accurately measure the size and aging of each resistance value, it is a thermal history algorithm. Optimization assistance has become a key step to further improve the printing quality. In the re...

Claims

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Application Information

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IPC IPC(8): B41J2/14B41J29/38
CPCB41J2/14112B41J29/38
Inventor 庞静周昌伟付靖峰曾勇陈昌海
Owner 重庆打贴匠科技有限公司
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