CN1171734C - Thermosensitive printing head - Google Patents

Thermosensitive printing head Download PDF

Info

Publication number
CN1171734C
CN1171734C CNB001110462A CN00111046A CN1171734C CN 1171734 C CN1171734 C CN 1171734C CN B001110462 A CNB001110462 A CN B001110462A CN 00111046 A CN00111046 A CN 00111046A CN 1171734 C CN1171734 C CN 1171734C
Authority
CN
China
Prior art keywords
common electrode
electrode
individual
width
lt
Prior art date
Application number
CNB001110462A
Other languages
Chinese (zh)
Other versions
CN1324725A (en
Inventor
董述恂
龙峰洲
张青普
徐海峰
孙晓旭
Original Assignee
山东华菱电子有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 山东华菱电子有限公司 filed Critical 山东华菱电子有限公司
Priority to CNB001110462A priority Critical patent/CN1171734C/en
Publication of CN1324725A publication Critical patent/CN1324725A/en
Application granted granted Critical
Publication of CN1171734C publication Critical patent/CN1171734C/en

Links

Abstract

本发明涉及一种热敏打印头,其包括陶瓷基板、印刷线路板等,陶瓷基板上设有共通电极、个别电极,其中一部分共通电极与印刷线路板相连(电源共通电极),电源共通电极的宽度W为44μm,局部区域的个别电极、共通电极以及间距为不均匀分布。 The present invention relates to a thermal print head which includes a ceramic substrate, a printed circuit board and the like, a ceramic substrate provided with the common electrode, individual electrodes, wherein a portion of the printed wiring board is connected to the common electrode (common electrode power supply), the power of the common electrode a width W of 44 m, the local area of ​​the individual electrode, the common electrode, and a non-uniform pitch distribution. 这种打印头体积较小、印字清晰,可广泛用于传真机、商业收款机、医疗器械、条形码打印机、计算机终端打印设备等领域。 Such print heads are smaller, clear printing can be widely used in facsimile machines, cash registers commercial, medical equipment, bar code printers, computer terminals and other printing equipment.

Description

热敏打印头 Thermal print head

本发明涉及一种打印部件,具体说是一种热敏打印头。 The present invention relates to a printing member, in particular to a thermal print head.

现有打印头的布线包括个别电极、共通电极,其中一部分共通电极与印刷线路板相连(电源共通电极),个别电极与共通电极为均匀分布,共通电极宽度一般为22.5μm。 Wiring conventional printhead includes individual electrode, the common electrode, wherein a portion of the printed wiring board is connected to the common electrode (common electrode power supply), the individual electrode and common power is extremely uniform, the common electrode width is generally 22.5μm. 当为了实现打印头的小型化时,这种结构往往导致电源共通电极对应区域印字浓度不均一且易造成该共通电极烧断。 In order to achieve miniaturization when the print head along, this structure often leads to non-uniform region corresponding to a common electrode power source and the printing density easily lead to the common electrode blown.

本发明的目的就是克服现有打印头的不足,提供一种体积较小、印字均匀的打印头。 Object of the present invention is to overcome the disadvantages of the conventional print head, having a volume to provide a smaller, uniform printing on the print head.

为达到上述目的,一种热敏打印头,其包括陶瓷基板,陶瓷基板上设有共通电极、个别电极,其中一部分共通电极与印刷线路板相连,称为电源共通电极,其特征是电源共通电极的宽度W为44μm,局部区域的个别电极、共通电极以及间距为不均匀分布。 To achieve the above object, a thermal print head which includes a ceramic substrate, a ceramic substrate provided with the common electrode, individual electrodes, and wherein a portion of the printed wiring board is connected to the common electrode, the common electrode called power, characterized in that the common electrode power supply a width W of 44 m, the local area of ​​the individual electrode, the common electrode, and a non-uniform pitch distribution.

局部区域的个别电极与共通电极的宽度不均匀分布,相邻的个别电极与共通电极宽度之间的差Δw即相邻两条电极间的差为1μm<ΔW<10μm。 The width of the individual electrode and the common electrode of the uneven distribution of the local region, adjacent a difference Δw between the individual electrode and the common electrode width which is the difference between two adjacent electrodes 1μm <ΔW <10μm. 相邻的两个间距之间的距离差为1μm<ΔP<10μm。 Distance difference between two adjacent pitch of 1μm <ΔP <10μm.

本发明由于加大了电源共通电极的宽度,个别电极与共通电极线宽及间距为不均匀分布,从而使打印头的小型化成为可能,并且印字均匀。 Since the present invention increases the width of the common electrode power supply, the individual electrode and the common electrode line width and spacing of uneven distribution, so that the size of the printing head becomes possible, and a uniform printing.

下面结合附图对发明做进一步的说明。 The following drawings illustrate the invention further binding.

图1为本发明结构示意图。 1 a schematic structural diagram of the present invention.

图2为与印刷线路板相连的共通电极为64点发热体下引一条时的打印效果图。 FIG 2 is a printed wiring board 64 is connected to the common point of the heating power is extremely print view of a body of the lead.

图3为图2A部区域放大图。 3 is an enlarged view of area 2A in FIG.

图4为进行灰度印字时的效果图。 FIG 4 is a view of the effect of the gradation printing.

图5为图4B部区域放大图。 FIG 5 is an enlarged view of region 4B.

图6为个别电极与共通电极线宽及间距不均匀分布和均匀分布时的阻值分布比较图。 FIG 6 is a view of comparison of the resistance distribution of the individual electrode and the common electrode line width and spacing uneven distribution and uniform distribution.

图7为本发明打印效果图。 FIG 7 FIG printing of the present invention.

参照图1,本发明包括陶瓷基板、印刷线路板等,陶瓷基板上设有共通电极2、个别电极1,其中一部分共通电极与印刷线路板相连,称为电源共通电极3,电源共通电极3的宽度W为44μm。 Referring to FIG. 1, the present invention includes a ceramic substrate, a printed circuit board and the like, a ceramic substrate provided with the common electrode 2, an individual electrode, wherein a portion of the printed wiring board is connected to the common electrode, the common electrode 3 is called the power, the power of the common electrode 3 width W of 44μm. 图2为在实现打印头小型化时,将与印刷线路板相连的共通电极3由8点发热体下引一条改为64点发热体下引一条时的打印效果图。 Figure 2 is when the size of the printheads, the printed wiring board and the common electrode connected to the heating member 3 at the 8-point lead to a dot print 64 primers view of a lower heat generation. 将电源共通电极3由8点发热体下引一条改为更多点下引一条时,电源共通电极3上的电流增大,由公式E0=I2Rt可知电源共通电极3上的热功耗增大,造成电源共通电极3发热而影响印字效果。 The common electrode 3 by the power source 8 to the heat generating element a more primers incorporated a point, the current on the power supply common electrode 3 is increased, E0 = I2Rt understood from Equation thermal power consumption on the common electrode 3 is increased , resulting in the heating power of the common electrode 3 affect the printing results. 图3为图2A部区域放大图,由图3中可清楚地看到在两打印点之间有一条黑线(即A部),该处即为电源共通电极发热造成。 FIG 3 is an enlarged view of area 2A, FIG. 3 can be clearly seen in a black line (i.e. portion A) between two printing points, where the common electrode is the generation of heat power. 从图2中的A部观察,该处电源共通电极发热造成印字浓度不均一,实际印字时电源共通电极对应部位出现黑线。 A unit as viewed from FIG. 2, where the common electrode power supply heat generation caused uneven print density, the actual printing of the common electrode power supply line corresponding to the black parts appear. 而将电源共通电极3由8点发热体下引一条改为96点发热体下引一条时,该现象更为突出,甚至造成电源共通电极3烧断而将打印头损坏。 3 and the common electrode power supply 8 by the heat generating element 96 to a lead body when the lead point of a heating, this phenomenon is more prominent, resulting in even supply the common electrode 3 and the print head blown damage. 本发明通过加宽电源共通电极3的宽度,降低了电源共通电极3自身的阻值,从而降低了电源共通电极3的热功耗,有效解决了图2所示问题,提高了印字的均匀性,使作画画质达到正常,见图7正常的打印效果图。 The present invention, by widening the width of the common electrode 3 of the power supply, reducing power itself resistance of the common electrode 3, thereby reducing the power consumption of the thermal power of the common electrode 3, effectively solves the problem shown in Figure 2, improves the uniformity of the printing the picture quality to normal painting, see FIG. 7 normal printing. 图6中的A为个别电极与共通电极线宽及间距不均匀分布时1~21区域的第一点阻值及阻值分布图,B为个别电极与共通电极线宽及间距均匀分布时1~21区域的第1点阻值及阻值分布图。 When in FIG. 6 A is the individual electrode and the common electrode line width and pitch of the uneven distribution of points 1 to 21 of the first resistance and the resistance distribution region, B when the individual electrode and the common electrode line width and spacing is a uniform distribution the first point of resistance and the resistance distribution in the region 21 ~ FIG. 其对应点数值如下:区域(block)1 2 3 4 5 6 7 8 9 10A 4062 4105 4157 4155 4151 4061 4072 4085 4155 4062B 3763 3532 3794 4118 3977 4006 3873 4167 3802 3471区域(block)11 12 13 14 15 16 17 18 19 20 21A 3867 4115 4140 4112 4080 4151 3924 4031 4001 3941 3992B 4002 3682 3928 3424 3840 3751 3683 3881 3891 3857 3932由图6可见在相同的生产工艺条件下A处1~21区域电阻分布均匀,单点阻值满足规格值R=R±10%;而B处1~21区域电阻分布很不均匀,且单点阻值不能全部满足规格值R=R±10%,个别点阻值低,印字时亦出现不良现象,见图4。 The corresponding point values ​​are as follows: area (block) 1 2 3 4 5 6 7 8 9 10A 4062 4105 4157 4155 4151 4061 4072 4085 4155 4062B 3763 3532 3794 4118 3977 4006 3873 4167 3802 3471 area (block) 11 12 13 14 15 16 17 18 19 20 21A 3867 4115 4140 4112 4080 4151 3924 4031 4001 3941 3992B 4002 3682 3928 3424 3840 3751 3683 3881 3891 3857 3932 seen in Figure 6 a of the 1 to 21 region resistance distribution under the same production conditions, a single point resistance standard value satisfies R = R ± 10%; 1 to 21 and the region B of the resistance distribution is not uniform, and a single point can not satisfy all of the specifications resistance value R = R ± 10%, individual points of low resistance, when the printing also adverse phenomenon, shown in Figure 4. 图5为图4的B部区域放大图,从图5可以看出阻值低的点因功率比其他点大,印字时发热量比其他点大,而造成印字点比其他点大,即图5中的B部。 FIG 5 is a section B of FIG. 4 an enlarged view of the region, it can be seen from FIG. 5 because of low resistance points than other power point, when printing large heat than other points, causing the print dot larger than the other points, i.e., FIG. 5 B portion. 从图4中可以观察到,B部印字比其他处的浓度深,即在实际印字时造成印字浓度不均一。 It can be observed from FIG. 4 to, B is deeper than the print concentration portion at the other, i.e., causing uneven print density at the time of actual printing. 本发明局部区域的个别电极、共通电极以及间距为不均匀分布。 Local region of the individual electrodes of the present invention, the common electrode and the uneven distribution of pitch. 本发明通过调整与印刷线路板相连的共通电极3周围的个别电极1与共通电极2的线宽及形成一个打印点的相邻两条共通电极之间的距离即间距,“间距”是本领域普通技术人员通用的术语,是指形成一个打印点的导线间的中心距离,即形成一个打印点的相邻两条共通电极(两条共通电极间有一条个别电极)之间的距离,从而使该处发热体的阻值与其它部位达到一致,同时线宽的差即相邻的个别电极与共通电极宽度之间的差必需控制在1μm<ΔW<10μm以内,间距的差即相邻的两个间距之间的距离差必需控制在1μm<ΔP<10μm以内,否则也会造成因阻值不均匀而产生印字浓度不均一的现象。 The distance between the individual electrodes surrounding the present invention by adjusting the common electrode connected to the printed wiring board 3 and the common electrode line width 1 and 2 of the two adjacent common electrode to form a print dot pitch, i.e., "pitch" is art general terms of ordinary skill in the art, refers to the distance between wires forming a center point of a print, i.e., a common electrode is formed adjacent two print dots (the individual electrodes have a common electrode between the two) between the distance, so that resistance and other parts where the heat generating element reaches a uniform, while the difference between the line width difference, i.e., adjacent to the individual electrode and the common electrode necessary to control the width of 1μm <ΔW <10 m or less, i.e., the difference between the pitch of two adjacent distance difference between the pitches is necessary to control the <ΔP <less than 1μm 10μm, otherwise it will cause unevenness due to a resistance to uneven print density phenomenon. 这种结构解决了因布线过密造成局部阻值低的现象,同时减少了生产时电阻降低发生的机率,实现了印字浓度的均一性,这种打印头体积较小、印字清晰,可广泛用于传真机、商业收款机、医疗器械、条形码打印机、计算机终端打印设备等领域。 This structure solves the phenomenon caused by low partial too dense wiring resistance, while reducing the chances of the production decrease in electrical resistance occurs, to achieve uniformity of print density, the smaller the volume of such a print head, clear printing can be widely used in the field of fax machines, business cash registers, medical equipment, bar code printers, printing equipment and other computer terminal.

Claims (3)

1.一种热敏打印头,其包括陶瓷基板,陶瓷基板上设有共通电极、个别电极,其中一部分共通电极与印刷线路板相连,为电源共通电极,其特征是电源共通电极的宽度W为44μm,局部区域的个别电极、共通电极以及间距为不均匀分布。 1. A thermal print head comprising a ceramic substrate, a ceramic substrate provided on the common electrode, individual electrodes, and wherein a portion of the printed wiring board is connected to the common electrode, the common electrode power supply, wherein the power of the common electrode width W 44 m, the local area of ​​the individual electrode, the common electrode, and a non-uniform pitch distribution.
2.根据权利要求1所述的热敏打印头,其特征在于所说的局部区域的个别电极与共通电极的宽度不均匀分布,相邻的个别电极与共通电极宽度之间的差Δw即相邻两条电极间的差为1μm<ΔW<10μm。 The thermal print head according to claim 1, characterized in that the width of the individual electrodes of said local area and the common electrode uneven distribution, a difference Δw between adjacent individual electrode and the common electrode with a width that is the difference between the two neighboring electrode 1μm <ΔW <10μm.
3.根据权利要求1所述的热敏打印头,其特征在于所说的相邻的两个间距之间的距离差ΔP为1μm<ΔP<10μm。 3. The thermal printing head according to claim 1, characterized in that the distance difference [Delta] P between the adjacent two of said pitch of 1μm <ΔP <10μm.
CNB001110462A 2000-05-18 2000-05-18 Thermosensitive printing head CN1171734C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB001110462A CN1171734C (en) 2000-05-18 2000-05-18 Thermosensitive printing head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB001110462A CN1171734C (en) 2000-05-18 2000-05-18 Thermosensitive printing head

Publications (2)

Publication Number Publication Date
CN1324725A CN1324725A (en) 2001-12-05
CN1171734C true CN1171734C (en) 2004-10-20

Family

ID=4580988

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB001110462A CN1171734C (en) 2000-05-18 2000-05-18 Thermosensitive printing head

Country Status (1)

Country Link
CN (1) CN1171734C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2005120841A1 (en) 2004-05-25 2008-04-10 ローム株式会社 Thermal print head and manufacturing method thereof
JP5467913B2 (en) * 2010-04-21 2014-04-09 アルプス電気株式会社 Thermal head

Also Published As

Publication number Publication date
CN1324725A (en) 2001-12-05

Similar Documents

Publication Publication Date Title
JP2950831B2 (en) Electrical interconnection member, interconnection scheme, and electrical interconnection circuit and manufacturing method thereof
CN100335284C (en) Ink jet print head, ink jet printer with ink jet print head, and method of manufacturing ink jet print head
US7170539B2 (en) Thermal head, method for manufacturing the same, and method for adjusting dot aspect ratio of thermal head
EP0707963A2 (en) Ink jet head, ink jet head cartridge and ink jet apparatus
US6634731B2 (en) Print head apparatus capable of temperature sensing
US4396923A (en) Recording control apparatus
EP0816090B1 (en) Recording head and recording apparatus
JP4041914B2 (en) Two drop size print head
US6056391A (en) Substrate having layered electrode structure for use in ink jet head, ink jet head, ink jet pen, and ink jet apparatus
JPH11320884A (en) Method for controlling energy of ink-jet print cartridge
KR960012758B1 (en) Printing head and printer incorporating the same
US20080136872A1 (en) Liquid recording head
JP2006051769A (en) Substrate for ink-jet head, method for manufacturing the substrate and ink-jet head using the substrate
TW542792B (en) Narrow ink jet printhead
JP2702426B2 (en) A thermal head apparatus
US5272489A (en) Thermal head and electronic apparatus using the same
JPH08332727A (en) Ink jet recording head and apparatus
JPH06340064A (en) Single interconnect system
CN1190620A (en) Ink-jet head adaptable to different size of ink drop
CN1160198C (en) Thermal print head
JPH071731A (en) Power control circuit to heating resistor in thermal ink jet printer
CN1091696A (en) Elecronic parts, thermal head, manufacturing method of the thermal head, and heat sensitive recording apparatus
KR100397388B1 (en) Line type thermal print head and line type thermal print head device
US20060125881A1 (en) Substrate for inkjet recording head and inkjet recording head using the same
US20080111859A1 (en) Recording-head driving device for driving recording head

Legal Events

Date Code Title Description
C06 Publication
C10 Entry into substantive examination
C14 Grant of patent or utility model
EXPY Termination of patent right or utility model