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Ink jet head with multiple units and its producing method

An inkjet head and nozzle technology, applied in printing and other directions, can solve the problems of complex process and difficulty in obtaining direct inspiration of inkjet heads.

Inactive Publication Date: 2005-10-26
FUJIFILM BUSINESS INNOVATION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is not only complicated in process, but it is also difficult for technicians to obtain more direct inspiration about making inkjet heads.

Method used

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  • Ink jet head with multiple units and its producing method
  • Ink jet head with multiple units and its producing method
  • Ink jet head with multiple units and its producing method

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0020] Before describing the preferred embodiment, reference will be made to figure 1 , 2 and 3 illustrate a prior art ink jet head.

[0021] Such as figure 1 As shown, the prior art ink jet head is formed of a single unit 101a including laminated substrates such as a single crystal silicon substrate and a glass substrate (see JP-A-6-218932). For example, if the size of each unit 101a is about 27mm×27mm, then use a cutter (not shown) to cut 7 units 101a from a single crystal silicon wafer 102 with a diameter of about 10cm, as figure 1 shown.

[0022] in as figure 1 Detailed plan view of each unit 101a figure 2 , four columns of nozzles 11, 12, 13 and 14 are set, and each nozzle 1 is closely arranged in a matrix form. In this case, the columns of nozzles 11, 12, 13 and 14 are used to eject black ink, yellow ink, cyan ink and magenta ink, respectively. The columns of nozzles 11, 12, 13 and 14 are connected to ink supply holes 21, 22, 23 and 24, respectively.

[0023] Su...

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PUM

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Abstract

An ink-jet head is constructed by a plurality of combined units in which each unit comprises a projecting adjacent part and a concave adjacent part; the incurvate adjacent part and the projecting adjacent part of a unit are adjacent to the projecting adjacent part of another unit. Each unit also contains a silicon substrate which has an ejecting nozzle, a pressure chamber, an ink passage and an ink pool; a trembler fixed to the silicon substrate and an actuator fixed to the trembler. The ink-jet head can reduce the manufacturing cost and the method may increase the yield of the ink-jet head.

Description

technical field [0001] The present invention relates to an inkjet head and a manufacturing method thereof. Background technique [0002] The prior art ink jet head is constituted by a single unit including laminated substrates such as a single crystal silicon substrate and a glass substrate (see JP-A-6-218932). This will be described in detail later. [0003] However, in the ink jet head of the prior art described above, when the density of the nozzles is increased in order to improve the printing quality while increasing the printing speed, even if one of the nozzles in a unit fails, the unit has to be removed, causing each The production rate of the unit is lowered, thereby increasing the manufacturing cost of the inkjet head. [0004] European Patent Publication EP 0 771 657 (A2), describes a composite liquid ink printhead that allows cross-layers. This paper aims to provide a method for fabricating nozzle structures for thermally induced droplet placement on desired p...

Claims

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Application Information

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IPC IPC(8): B41J2/045B41J2/055B41J2/14B41J2/16
CPCB41J2/161B41J2/1623B41J2/1628B41J2002/14459B41J2002/14419B41J2/1632B41J2/1631B41J2/1635
Inventor 神田虎彦大野健一大塚泰弘
Owner FUJIFILM BUSINESS INNOVATION CORP