Consumable container with circuit for measuring consumable surplus

A technology of consumables and remaining quantity, which is applied in printing and other directions, and can solve problems such as the increase in the cost of ink cartridge manufacturing

Inactive Publication Date: 2007-10-03
吴嘉懿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since this method uses noble metals with excellent electrical conductivity and corros...

Method used

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  • Consumable container with circuit for measuring consumable surplus
  • Consumable container with circuit for measuring consumable surplus
  • Consumable container with circuit for measuring consumable surplus

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Embodiment Construction

[0024] Embodiments of the present invention will be described in the following order.

[0025] A. the structure of the ink cartridge in the embodiment of the present invention;

[0026] B. the electrical structure of the ink cartridge in the embodiment of the present invention;

[0027] C. Circuit principle of the replaced piezoelectric element charging and discharging waveform generation part in the embodiment of the present invention;

[0028] D. The principle of the input buffer circuit in the embodiment of the present invention;

[0029] E. The voltage waveform generation process on the replaced piezoelectric element terminal in the embodiment of the present invention;

[0030] F. The working principle of the capacitive electrode in the embodiment of the present invention;

[0031] A. The structure of the ink cartridge:

[0032] FIG. 1 is an external view of an ink cartridge 100 in an embodiment of the present invention. The ink cartridge 100 includes a cartridge body...

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PUM

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Abstract

A consumable material (the ink of ink-jet printer or the powder of laser printer) container with a circuit to measure the residual consumable material in it has a detecting unit for detecting the electric signal on the terminal of piezoelectric element, a signal source A for generating electric signal on the terminal of piezoelectric element, a capacitor-type electrode unit consisting of two insulated electrodes (the consumable material as a medium between them), a signal source B for outputting pulse signal to one electrode of said capacitor-type electrode unit, and a sampling unit for measuring the signal attenuation from another electrode and in turn the residual consumable material.

Description

technical field [0001] The present invention relates to a technique for measuring the remaining amount of consumables in a container. Background technique [0002] The ink cartridges of some inkjet printers use piezoelectric elements as sensors to measure the remaining amount of ink, such as EPSON DX4000, EPSON DX6000 and EPSON R270 inkjet printers do this. [0003] The manufacturing process of the piezoelectric element is complicated, the production cost is high, and the piezoelectric element with special charge and discharge characteristics, special piezoelectric effect and special resonance frequency is more difficult to manufacture. [0004] In the traditional method of measuring the remaining amount of ink, another method is to put two conductive electrodes in the ink. Since this method uses a noble metal having excellent electrical conductivity and corrosion resistance as an electrode material, the manufacturing cost of the ink cartridge increases. Contents of the i...

Claims

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Application Information

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IPC IPC(8): B41J2/175
Inventor 吴嘉懿
Owner 吴嘉懿
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