Liquid detection device, liquid container using the same and liquid ejection apparatus

A technology for detection devices and liquid containers, applied to liquid level indicators for physical variable measurement, printing, etc., can solve problems such as inability to accurately detect ink remaining, difficulty in ensuring sealing, and false detection

Inactive Publication Date: 2007-08-08
SEIKO EPSON CORP
View PDF1 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the structure in which the liquid detection device is bonded to the edge of the opening, it is difficult to ensure sealing when the dimensions vary.
In addition, if it is directly bonded to the edge of the opening of the container body or the edge of the opening of the module, it is easily affected by ink fluctuations and air bubbles in the ink, which may cause false detection
[0011] Generally, in an ink remaining amount detection container having a

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Liquid detection device, liquid container using the same and liquid ejection apparatus
  • Liquid detection device, liquid container using the same and liquid ejection apparatus
  • Liquid detection device, liquid container using the same and liquid ejection apparatus

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0045] Hereinafter, the liquid detection device according to various embodiments of the present invention will be described with reference to the drawings.

[0046] FIG. 1 shows a schematic configuration of an inkjet recording apparatus (liquid ejection apparatus) using an ink cartridge (liquid container) having the liquid detection device of the first embodiment. Reference numeral 1 in FIG. 1 denotes a carriage, and the carriage 1 reciprocates in the axial direction of the platen shaft 5 under the guidance of the guide member 4 by the timing belt 3 driven by the carriage motor 2.

[0047] An inkjet recording head 12 is mounted on the side of the carriage 1 opposite to the recording paper 6, and an ink cartridge (liquid container) 100 that can be detached and supplied to the recording head 12 is mounted on the upper part of the inkjet recording head 12.

[0048] A cap member 13 is arranged in the non-printing area of ​​the recording device, that is, the initial position (right sid...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present invention provides a liquid detection device which can be simply and reliably sealed when it is mounted to a container main body, the liquid detection device can not be influenced by fluctuation of ink and the air bladder, and the vibration attenuation of the vibration plate of the liquid detection device caused by a reflect wave is small. The liquid detection device is accommodated in a sensor accommodating portion (110) formed in a liquid container (101) and detects the liquid in the liquid container (101) using a piezoelectric element (234), the liquid container (101) stores liquid. When a wavelength of a vibration wave to be emitted from the piezoelectric element (234) is lambda, a distance H from a rear surface of a vibration wave emitting surface of the piezoelectric element (234) to a wall surface (302) facing the rear surface is defined to satisfy the following relation: (n x lambda/2 -lambda/4 -lambda/8) <= H <= (n x lambda/2 - lambda/4 + lambda/8), wherein, n = 1, 2, 3, ... .

Description

technical field [0001] The present invention relates to a liquid detection device, and more particularly to a liquid detection device used in a liquid ejection device such as an inkjet recording device and mainly for detecting the remaining amount of ink. Background technique [0002] As a representative example of such a liquid ejecting device, there is an ink jet recording device having an ink jet recording head for image recording. As other liquid jetting devices, for example, a device having a pigment jet head used in the manufacture of color filters such as liquid crystal displays; A device with an electrode material (conductive paste) ejection head used in the process; a device with a bioorganic substance ejection head used in the manufacture of a biochip; a device with a sample ejection head as a precision pipette, etc. [0003] In an inkjet recording apparatus that is a representative example of a liquid ejecting apparatus, an inkjet recording head having a pressure...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01F23/22B41J2/175
Inventor 张俊华
Owner SEIKO EPSON CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap