# US 2016/0355017 A1 · Method for manufacturing liquid ejection head

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- Number: US 2016/0355017 A1
- Document ID: US20160355017A1
- Status: Published application
- Kind: A1
- Application number: 15/156,687
- Filed: 2016-05-17
- Published: 2016-12-08
- Earliest claimed: 2015-06-03
- Assignees: Canon Kabushiki Kaisha
- Applicants: Canon Kabushiki Kaisha
- Inventors: Masao Furukawa
- Web page: https://patentgrep.com/patent/US20160355017A1

## CPC

- B41J 2/1623: {bonding and adhesion}
- B41J 2/1601: {Production of bubble jet print heads (B41J2/1606, B41J2/162 take precedence)}
- B41J 2202/19: Assembling head units
- B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS

## Abstract

The present invention relates the method of manufacturing a liquid discharge head, in which a plurality of element substrates are adjacently arranged in a predetermined direction on a support plate by using a UV adhesive. The method for manufacturing a liquid ejection head is capable of reducing variations in the positions of element substrates while avoiding an increase of a tact time.

## Claims

### Claim 1

A method for manufacturing a liquid ejection head, in which a plurality of element substrates that eject a liquid are adjacently arranged in a predetermined direction on a support member by using an adhesive that cures by the irradiation of light, the manufacturing method comprising:
a first application step of applying the adhesive to a plurality of first areas on the support member in which element substrates that are not adjacent to each other among the plurality of element substrates are to be arranged;
a first joining step of carrying out the irradiation of light and the joining of the element substrates for each of the first areas to which the adhesive has been applied in the first application step;
a second application step of applying the adhesive to a plurality of second areas in which the element substrates have not been joined in the first joining step among the plurality of areas on the support member in which the plurality of element substrates are to be arranged; and
a second joining step of carrying out the irradiation of light and the joining of the element substrates for each of the second areas to which the adhesive has been applied in the second application step.

### Claim 2 (depends on 1)

The method for manufacturing a liquid ejection head according to claim 1, wherein the first areas and the second areas are alternately arranged in the predetermined direction.

### Claim 3 (depends on 1)

The method for manufacturing a liquid ejection head according to claim 1, wherein, in the second joining step, the element substrates to be joined in the second joining step are positioned on the basis of positions of the element substrates joined in the first joining step.

### Claim 4 (depends on 3)

The method for manufacturing a liquid ejection head according to claim 3, wherein positions of the element substrates joined in the first joining step are measured, and desired positions of the element substrates to be joined in the second joining step are calculated to perform the positioning on the basis of the position measurement results.

### Claim 5 (depends on 3)

The method for manufacturing a liquid ejection head according to claim 3, wherein positions of the element substrates to be joined in the second joining step are determined by referring to positions of the element substrates which are adjacent to the element substrates to be joined in the second joining step and which have been joined in the first joining step.

### Claim 6 (depends on 1)

The method for manufacturing a liquid ejection head according to claim 1,
wherein a thermosetting adhesive is further applied to the first areas in the first application step,
the thermosetting adhesive is further applied to the second areas in the second application step, and
the second joining step is followed by a third joining step, in which the thermosetting adhesive is heated to join the element substrates to the first areas and the second areas by the thermosetting adhesive.

### Claim 7 (depends on 1)

The method for manufacturing a liquid ejection head according to claim 1,
wherein the plurality of element substrates are linearly and adjacently arranged.

### Claim 8 (depends on 1)

The method for manufacturing a liquid ejection head according to claim 1,
wherein the joining of the element substrate is carried out after the irradiation of light in the first joining step and second joining step.