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Ink jet print head chip

An inkjet printing head and chip technology, applied in printing and other fields, can solve problems such as expensive, huge equipment investment, and difficult

Inactive Publication Date: 2003-05-14
NANODYNAMICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because it is quite difficult to completely align the fine ink jet holes 22 on each flexible circuit board 20 with each excitation chamber 33, the temperature and humidity control of the assembly environment and the bonding of the flexible circuit board 20 and the separation layer 32 must be completely aligned. To prevent the adhesive from overflowing and blocking the inkjet hole 22 or the excitation chamber 33, it requires extremely expensive high-precision equipment
To expand production capacity, it means a huge investment in equipment

Method used

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  • Ink jet print head chip
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  • Ink jet print head chip

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Experimental program
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Effect test

Embodiment Construction

[0025] Refer again Figure 5 In the existing structure shown, the inkjet printhead chip 30 is provided with a control circuit 35 in the middle, but since the inkjet printhead chip 30 does not have an orifice sheet, it is necessary to use a laser device in the flexible circuit board 20 in addition. Rows of ink jet holes 22 are processed on the upper side, and aligned and bonded to form a jet hole sheet. In other words, if the flexible circuit board 20 is not bonded, or the ink ejection hole 22 on the flexible circuit board 20 has a hole that is not aligned or is closed by adhesive for some reason, the final assembled ink jet cartridge 10 will become Defective products that cannot fully exert their inkjet function. Since the processing of the inkjet print head chip 30 and the processing of the flexible circuit board 20 are not consistent with each other, the cost is to rely on expensive precision equipment and strict environmental control to overcome the combination.

[0026] ...

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PUM

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Abstract

The ink jet print head chip is mounted at the nose of ink cartridge and has the structure comprising silicon substrate, separating layer and jet sheet with two rows of ink jetting holes, as well as two rows of ink channels among the silicon substrate, the separating layer and the jet sheet and two separate control circuits outside the two rows of ink jetting holes. By means of the said configuration, relatively large area may be provided in the central position of ink jet print head chip for adhering the jet sheet. Flexible circuit board is used to transmit the outer control signal to the control circuits so as to start ink jet to form figure or writing.

Description

technical field [0001] The invention relates to an inkjet printing head chip, in particular to an inkjet printing head chip in which ink channels are distributed between two rows of inkjet holes on the chip, and control circuits are distributed on the relative outer sides of the two rows of inkjet holes. Background technique [0002] At present, the commonly used inkjet print head chip can be roughly divided into two types, namely, a thermal inkjet print head chip and a piezoelectric inkjet print head chip. Due to fierce product competition, developers have to rack their brains to continuously pursue improvement breakthroughs and demanding progress, so that the structure of the inkjet print head chip can meet new needs at any time, and constantly pursue cost reduction and yield improvement in the process. . This all depends on breakthroughs in structural design, technology and materials. Take U.S. Patent No. 4,683,481 "Thermal Ink Jet Common-Slotted Ink FeedPrint-head" as ...

Claims

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Application Information

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IPC IPC(8): B41J2/14
Inventor 杨长谋林振华杨明勋吕文崇
Owner NANODYNAMICS INC