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Ink-jet printer cartridge and pressure balancing unit thereof

A technology of inkjet printers and balancing devices, which is applied in printing and other directions, and can solve the problems of reducing the effect of ink cartridges on the machine and not being easy to eliminate

Inactive Publication Date: 2007-07-04
ZHUHAI TIANWEI TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the vacuum degree exceeds the rated ink holding capacity of the print head (including its ink supply channel and micro nozzle channel), the vacuum will act on the micro nozzle hole of the ink supply needle and reversely suck the ink in the micro nozzle channel In the ink supply port, the micro-nozzles suck air from the outside atmosphere in order to maintain pressure balance, thus forming air accumulation in the micro-nozzles, resulting in the formation of micro-air pockets that are not easy to eliminate in the micro-nozzle channels, resulting in repeated installation operations in the future Moderately reduce the on-machine effect of ink cartridges

Method used

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  • Ink-jet printer cartridge and pressure balancing unit thereof
  • Ink-jet printer cartridge and pressure balancing unit thereof
  • Ink-jet printer cartridge and pressure balancing unit thereof

Examples

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Embodiment Construction

[0030] Referring to Figures 1, 2, 3 and 7, the pressure balance device 1 for an inkjet printer cartridge of the present invention mainly includes a cover 4, a diaphragm 3 and a seat 2. The cover body 4 is tightly sealed on the seat body 2 to form a closed inner cavity. The membrane 3 is arranged in this interior. The inner cavity of the pressure balance device 1 is divided into a first chamber a and a second chamber b which are isolated from each other with the diaphragm 3 as a boundary. The pressure balance device 1 can be arranged on the side wall or inner wall of the ink cartridge above the ink supply port of the inkjet printer ink cartridge (see FIG. 10 ). The second chamber b between the diaphragm 3 and the cover body 4 passes through the balance through hole 43 (see Figure 4) that is offered on the cover body 4, so that the side of the diaphragm 3 facing the second chamber b is always in contact with the outside atmosphere or The inks in the ink storage chambers of the...

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PUM

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Abstract

The invention discloses an ink-jet printer cartridge and pressure balance device, wherein the pressure balance device contains sealed cavity through exterior wall, which is made of elastic material to form membrane to form mutual separating first cavity and second cavity; the first cavity interconnects ink in the ink hole in the printer ink box through ink channel on the exterior wall; the second cavity interconnects dielectric on the exterior of second cavity through balanced channel on the exterior wall; the membrane sways between the first and second cavities due to pressure difference; the pressure balance device avoids ink from drastic change, which maintains ink pressure at stable condition.

Description

technical field [0001] The present invention relates to an ink supply device applied to an ink jet recording apparatus and a pressure balance device applied to such an ink supply device. Especially for inkjet printers, the sponge is used as the ink holding body in the ink storage chamber, or the ink cartridge that simply uses its internal space to store ink and uses a one-way valve to control the ink pressure state in the ink supply port, and its pressure balance device. Background technique [0002] One of the common ink supply methods between an inkjet printer and its matching ink cartridges is to insert an ink supply needle with an ink through hole into the ink outlet of the ink cartridge, and the ink supply needle is pierced on the edge or inner cavity of the ink outlet. The sealing sheet or sealing film is realized by making the ink flow from the ink outlet into the ink through hole in the ink supply needle. Usually the ink supply needle is made of metal material with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/175B41J2/18
Inventor 李先笔
Owner ZHUHAI TIANWEI TECH DEV CO LTD
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