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MPU chip or MCU chip

A chip and printing material technology, applied in printing and other directions, can solve the problems of reduced service life, printer damage, and printer's inability to accurately predict the remaining ink volume, to achieve the effect of protecting the printer, avoiding damage or reducing the service life

Active Publication Date: 2022-03-01
珠海极海半导体有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, some users use non-original ink cartridges instead of original ones, and non-original ink cartridges use cracked residual liquid level detection circuits to deal with printer ink level detection. However, cracked residual liquid level detection circuits are often different from original printers. Matching, so that the printer cannot accurately predict the remaining ink level, resulting in damage to the printer or a reduced lifespan

Method used

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  • MPU chip or MCU chip
  • MPU chip or MCU chip
  • MPU chip or MCU chip

Examples

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Embodiment Construction

[0039] The terms used in the embodiments of the present application are only used to explain specific embodiments of the present application, and are not intended to limit the present application.

[0040] In the related art, a solution for detecting the residual liquid level in the ink cartridge of the printer is as follows:

[0041] refer to figure 1 as shown, figure 1 It is a structural schematic diagram of the residual liquid level detection circuit, and the circuit may include:

[0042] The control circuit (controller) controls the current source to supply power to the sensor and controls the operation of the heating circuit; the heating circuit is arranged in the ink cartridge to generate heat and change the temperature; the sensor is arranged in the ink cartridge to sense the nearby position The temperature change at the sensing position or substantially in the vicinity of the sensing position (for example, within 10 microns) is converted into a voltage, that is, the ...

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PUM

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Abstract

The invention relates to the technical field of printers, in particular to an MPU chip or an MCU chip which can verify whether a user uses a non-original cracking circuit or original ink or not so as to improve the anti-cracking capability of a printer or an ink box (namely a printing material box). The MPU or MCU chip comprises a frequency divider used for generating a target thermal pulse signal; the clock chip RTC or the crystal oscillator is used for generating a target clock signal; the latch-comparator circuit is used for generating a target voltage threshold signal; the detection signal comprises at least one of a target thermal pulse signal, a target clock signal and a target voltage threshold signal; the operation unit is used for operating a corresponding reference result according to the detection signal; and whether the target object is original or not is identified by comparing the detection result output by the residual liquid detection unit with the reference result.

Description

technical field [0001] The present application relates to the technical field of printers, in particular to an MPU chip or an MCU chip. Background technique [0002] Generally, the printer is equipped with a residual liquid level detection circuit (ie, a liquid residual detection unit), which is used to detect the position of the residual liquid of the printing material (such as printing ink) in the printing material box (also called printing box, toner cartridge, ink cartridge, etc.). At present, some users use non-original ink cartridges instead of original ones, and non-original ink cartridges use cracked residual liquid level detection circuits to deal with printer ink level detection. However, cracked residual liquid level detection circuits are often different from original printers. Matching, so that the printer cannot accurately predict the amount of ink remaining, resulting in damage to the printer or a reduced lifespan. [0003] In view of this, there is an urgent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/01B41J2/175
CPCB41J2/01B41J2/17546B41J2/17566
Inventor 康泽华张虚谷刘莎莎
Owner 珠海极海半导体有限公司
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