WO2005080084A1 - サーマルプリントヘッド - Google Patents
サーマルプリントヘッド Download PDFInfo
- Publication number
- WO2005080084A1 WO2005080084A1 PCT/JP2005/002449 JP2005002449W WO2005080084A1 WO 2005080084 A1 WO2005080084 A1 WO 2005080084A1 JP 2005002449 W JP2005002449 W JP 2005002449W WO 2005080084 A1 WO2005080084 A1 WO 2005080084A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- portions
- heating resistor
- scanning direction
- blocks
- main scanning
- Prior art date
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 68
- 239000000758 substrate Substances 0.000 claims description 12
- 230000007423 decrease Effects 0.000 claims description 7
- 239000010410 layer Substances 0.000 description 8
- 238000009966 trimming Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 3
- 230000020169 heat generation Effects 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/35—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads providing current or voltage to the thermal head
- B41J2/355—Control circuits for heating-element selection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/345—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads characterised by the arrangement of resistors or conductors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/35—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads providing current or voltage to the thermal head
Definitions
- Patent Document 1 This means that the resistance values of the plurality of heating resistor portions 91 do not become uniform, as shown in FIG. 6 (b).
- the configuration and the heat generation conditions of the plurality of heat generating resistor sections 91 should be made as uniform as possible. Is requested. In color printing, higher image quality is required than in monochrome printing, and such a request is particularly strong.
- the resistance value is adjusted so that the resistance values of the plurality of heating resistor portions 91 vary greatly, the above-mentioned demands are not properly met, and the quality of a printed image is improved. There is still room for improvement.
- the plurality of first and second lead wiring portions are not uniform in length, and at least a portion of the first and second lead wiring portions is formed wider as the length is longer. I have.
- the semiconductor device further includes a plurality of third lead wiring portions connecting a pair of the plurality of heating resistor portions adjacent to each other in the main scanning direction, and the drive IC is provided in the sub-scanning direction.
- the plurality of heating resistor sections are provided closer to the common wiring section than the plurality of heating resistor sections, and the plurality of first and second lead wiring sections are alternately arranged in the main scanning direction. , And extend from the plurality of heat generating resistance parts toward the common wiring part.
- FIG. 3 is a sectional view taken along the line III-III of FIG. 1.
- the head substrate 1 and the printed circuit board 2 are both in the form of flat plates having an insulating property and having a rectangular shape in plan view.
- Head substrate 1 is made of, for example, alumina ceramic.
- the printed circuit board 2 is made of, for example, glass epoxy resin.
- the head substrate 1 and the printed circuit board 2 are supported by a metal support member 27, and are arranged in their short direction (corresponding to the sub-scanning direction).
- the plurality of heating resistors 3 are arranged at a certain interval in the main scanning direction on or near one side edge extending in the longitudinal direction (main scanning direction) of the head substrate 1.
- the common wiring section 4 has a linear section 40 extending in the main scanning direction on or near the other side edge of the head substrate 1.
- the force linear unit 40 which will be described in detail later, is divided into a plurality of blocks BL in the main scanning direction.
- the plurality of heating resistors 3 are divided into a plurality of blocks BL 'in the main scanning direction.
- a plurality of blocks BL, BL ' have a one-to-one correspondence.
- each of the plurality of blocks BL ′ has a relationship corresponding to each of the plurality of drive ICs 5.
- the resistance values of the plurality of heat generating resistor sections 3 are adjusted by trimming. As shown in FIG. 5, the resistance values of the plurality of heat generating resistance portions 3 draw a quadratic curve in which both end forces of each block BL 'decrease toward the center thereof.
- An example of the procedure for adjusting the resistance value is as follows. First, before adjusting the resistance value, a plurality of heat generating resistor portions 3 are actually heated to print an image on a recording paper on a trial basis. Next, the printed image is read by a scanner to analyze the density unevenness of the printed dots.
- the common wiring section 4 is divided into a plurality of blocks BL, and a voltage is applied to each of the blocks BL. Therefore, the amount of voltage drop for each block BL is small. Therefore, as shown in FIG. 5, the difference R1 between the maximum resistance value and the minimum resistance value of the plurality of heating resistance portions 3 can be reduced. As a result, the amount of trimming of the plurality of heat generating resistor portions 3 can be reduced, and the trimming operation becomes easy. In addition, if the variation in the resistance values of the plurality of heating resistor sections 3 is reduced, the heating conditions of the plurality of heating resistor sections 3 are made uniform. For this reason, as for the print dots, it is possible to make the gradation as uniform as possible. Therefore, according to the thermal print head A, high quality and printed images can be obtained.
- a plurality of heat generating resistance portions 3 are provided on one side edge of the head substrate 1 or in the vicinity thereof, and have a V, so-called edge structure. For this reason, for example, when it becomes easy to use a large-diameter platen roller for pressing the recording paper against the heat generating resistor portion 3, another advantage can be obtained.
- the drive IC and the block of the heating resistor section need not be in a one-to-one correspondence. For example, it does not matter if one drive IC and a plurality of heating resistor blocks have a corresponding relationship.
- the heating resistor section may be divided into a plurality of blocks corresponding to the block division of the common wiring section.
- the common wiring section may be divided into a plurality of blocks, and the specific number thereof can be variously changed.
Landscapes
- Electronic Switches (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/589,586 US20070176974A1 (en) | 2004-02-19 | 2005-02-17 | Thermal printhead |
US12/270,288 US20090073250A1 (en) | 2004-02-19 | 2008-11-13 | Thermal printhead |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004042581A JP2005231169A (ja) | 2004-02-19 | 2004-02-19 | サーマルプリントヘッド |
JP2004-042581 | 2004-02-19 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/270,288 Continuation US20090073250A1 (en) | 2004-02-19 | 2008-11-13 | Thermal printhead |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005080084A1 true WO2005080084A1 (ja) | 2005-09-01 |
Family
ID=34879264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/002449 WO2005080084A1 (ja) | 2004-02-19 | 2005-02-17 | サーマルプリントヘッド |
Country Status (6)
Country | Link |
---|---|
US (2) | US20070176974A1 (ja) |
JP (1) | JP2005231169A (ja) |
KR (1) | KR100817681B1 (ja) |
CN (1) | CN100475543C (ja) |
TW (1) | TWI259151B (ja) |
WO (1) | WO2005080084A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5008415B2 (ja) * | 2007-02-15 | 2012-08-22 | 東芝ホクト電子株式会社 | サーマルヘッド |
JP2009255524A (ja) * | 2008-03-25 | 2009-11-05 | Seiko Epson Corp | 液体噴射ヘッド及び液体噴射装置 |
JP5049894B2 (ja) * | 2008-06-24 | 2012-10-17 | アルプス電気株式会社 | サーマルヘッド |
JP5647822B2 (ja) * | 2009-07-24 | 2015-01-07 | ローム株式会社 | サーマルプリントヘッド、サーマルプリンタおよびプリンタシステム |
JP5467913B2 (ja) * | 2010-04-21 | 2014-04-09 | アルプス電気株式会社 | サーマルヘッド |
CN103381711B (zh) * | 2012-05-04 | 2016-01-20 | 山东华菱电子股份有限公司 | 热敏打印头修阻方法及装置 |
JP6208561B2 (ja) * | 2013-11-26 | 2017-10-04 | 京セラ株式会社 | サーマルヘッドおよびサーマルプリンタ |
JP6632449B2 (ja) * | 2016-03-29 | 2020-01-22 | 京セラ株式会社 | サーマルヘッドおよびサーマルプリンタ |
JP2017177587A (ja) * | 2016-03-30 | 2017-10-05 | 東芝ホクト電子株式会社 | サーマルプリントヘッド及びサーマルプリンタ |
TWI703052B (zh) * | 2019-08-05 | 2020-09-01 | 謙華科技股份有限公司 | 熱印頭元件、熱印頭模組及其製造方法 |
CN111300996B (zh) * | 2020-02-26 | 2021-08-10 | 江门市得实计算机外部设备有限公司 | 克服打印头发热不均匀的方法、装置及计算机存储介质 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5531610U (ja) * | 1978-08-21 | 1980-02-29 | ||
JPS6137942U (ja) * | 1984-08-10 | 1986-03-10 | アルプス電気株式会社 | サ−マルヘツド |
JP2001162849A (ja) * | 1999-12-07 | 2001-06-19 | Seiko Instruments Inc | サーマルヘッド |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3115453B2 (ja) * | 1992-12-28 | 2000-12-04 | 三菱電機株式会社 | サーマルヘッドおよび感熱記録装置 |
US6116714A (en) * | 1994-03-04 | 2000-09-12 | Canon Kabushiki Kaisha | Printing head, printing method and apparatus using same, and apparatus and method for correcting said printing head |
US6612672B2 (en) * | 2000-12-04 | 2003-09-02 | Canon Kabushiki Kaisha | Ink jet printing apparatus and ink jet printing method |
JP2005153416A (ja) * | 2003-11-27 | 2005-06-16 | Fuji Photo Film Co Ltd | サーマルヘッドのスジ印画補正方法及び装置、及びサーマルヘッド及びサーマルプリンタ |
-
2004
- 2004-02-19 JP JP2004042581A patent/JP2005231169A/ja active Pending
-
2005
- 2005-02-17 US US10/589,586 patent/US20070176974A1/en not_active Abandoned
- 2005-02-17 CN CNB2005800055569A patent/CN100475543C/zh not_active Expired - Fee Related
- 2005-02-17 TW TW094104618A patent/TWI259151B/zh not_active IP Right Cessation
- 2005-02-17 KR KR1020067014452A patent/KR100817681B1/ko not_active IP Right Cessation
- 2005-02-17 WO PCT/JP2005/002449 patent/WO2005080084A1/ja active Application Filing
-
2008
- 2008-11-13 US US12/270,288 patent/US20090073250A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5531610U (ja) * | 1978-08-21 | 1980-02-29 | ||
JPS6137942U (ja) * | 1984-08-10 | 1986-03-10 | アルプス電気株式会社 | サ−マルヘツド |
JP2001162849A (ja) * | 1999-12-07 | 2001-06-19 | Seiko Instruments Inc | サーマルヘッド |
Also Published As
Publication number | Publication date |
---|---|
KR20070029131A (ko) | 2007-03-13 |
US20090073250A1 (en) | 2009-03-19 |
TW200600359A (en) | 2006-01-01 |
CN100475543C (zh) | 2009-04-08 |
TWI259151B (en) | 2006-08-01 |
KR100817681B1 (ko) | 2008-03-27 |
JP2005231169A (ja) | 2005-09-02 |
CN1922023A (zh) | 2007-02-28 |
US20070176974A1 (en) | 2007-08-02 |
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