CN1210789A - Printer apparatus - Google Patents

Printer apparatus Download PDF

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Publication number
CN1210789A
CN1210789A CN 98117874 CN98117874A CN1210789A CN 1210789 A CN1210789 A CN 1210789A CN 98117874 CN98117874 CN 98117874 CN 98117874 A CN98117874 A CN 98117874A CN 1210789 A CN1210789 A CN 1210789A
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CN
China
Prior art keywords
cover
opening
pressure
printer
platen roller
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Application number
CN 98117874
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Chinese (zh)
Inventor
关谷宏彰
清野匠
Original Assignee
精工电子工业株式会社
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Publication date
Priority to JP9205065A priority Critical patent/JPH1148507A/en
Application filed by 精工电子工业株式会社 filed Critical 精工电子工业株式会社
Publication of CN1210789A publication Critical patent/CN1210789A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J25/00Actions or mechanisms not otherwise provided for
    • B41J25/304Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J25/00Actions or mechanisms not otherwise provided for
    • B41J25/304Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
    • B41J25/316Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with tilting motion mechanisms relative to paper surface

Abstract

本发明的一种打印机改善了在执行维修,如卡纸和打印头清洗过程中的可操作性,并减少部件数目。 A printer according to the present invention improves the operability in the maintenance is performed, such as paper jams and print head cleaning process and reduce the number of parts. 该打印机有与外盖的开和关相互作用而旋转的施压凸轮,用于释放打印头模块而不承受作为弹性元件的片簧的压力,由此增加打开量,从而做成一个包括主要部件在里面的打印机架。 The printer has a cover with opening and closing of the interaction of the cam mechanism rotates, print head module for releasing under pressure as a leaf spring without the resilient member, thereby increasing the opening amount, thereby to make a main component comprising in the inside of the printer frame. 相应地,在装配和执行维修如卡纸或打印头清洗的过程中,就可以提高可操作性。 Accordingly, maintenance such as head cleaning or the paper jam during assembly and being executed, the operability can be improved. 而且,施压凸轮的第三凸轮面通过外盖的打开动作移动检测开关的可动部分。 Also, the third cam surface by pressing the cam outer opening operation of moving the movable portion of the cover detection switch. 相应地,仅仅采用一个开和关就可以检测外盖的打开和关闭运动以及打印头模块与压纸辊的接触和不接触运动,从而减少了部件数目。 Accordingly, using only one opening and closing can be detected opening and closing movement of the cover and the contact module and the printhead and platen roller does not contact the motion, thereby reducing the number of parts.

Description

打印机 printer

本发明涉及一种采用一热打印头在热敏记录纸上形成影像的感热式打印机,尤其是一种如在卡纸和打印头清洗上提高可操作性的感热式打印机。 The present invention relates to a thermal head using a heat-sensitive recording paper to form an image on a thermal printer, in particular a sense of operability as to improve the thermal printer and the paper jam in the print head cleaning.

所构造的感热式打印机采用一热打印头在记录纸上形成预期的影像。 The configuration of a thermal printer using a thermal head image formed on recording paper is expected.

在该种类型的小型感热式打印机中,热打印头通过一施压元件,例如一种预定形式的片簧施加的压力可转动地与压纸辊压力接触。 In this type of compact thermal printer, a thermal head pressing member, for example, in a predetermined pressure is applied in the form of a leaf spring is rotatably in contact with the platen roller by pressure. 在调整或卡住热敏记录纸的过程中,打开一个外盖,然后安装在其中的一个释放杆被转动,从而该片簧或类似构件的压力被直接或间接地释放。 In the process of adjusting the thermal recording paper jam, open an outer cover and mounted therein a release lever is rotated, so that the leaf spring member or the like directly or indirectly, the pressure is released. 因此,该热打印头可远离压纸辊放置。 Thus, the thermal head away from the platen roller can be placed.

采用这种结构,例如在维修过程中,在打开外盖以后需要操作该释放杆。 With this structure, during maintenance for example, the need to open the cover after operation of the release lever. 相应地,在壳体的打开部分除一个执行维修的空间外,还需要一个操作释放杆的空间。 Accordingly, the space in the housing opening portion in addition to performing a maintenance space, but also requires an operation of the release lever. 因此为了保证上述空间,需增加增加该装置的尺寸。 Therefore, in order to ensure the above-mentioned space, the need to increase the size of the apparatus increases. 并且,为了分别检测该释放杆的状态和外盖的状态,检测开关也需要两个,从而使结构复杂。 Further, to the release lever and a state of the cover were detected, two detection switches also required, thereby complicating the structure.

此外,这样的小型行式热感打印机构造起来需要一释放杆,该释放杆有一布置在壳体的纸出口附近的可旋转支撑轴,在多数情况下,该支撑轴设置在远离该热打印头的一个可旋转支撑轴的位置。 Further, such a small line thermal printer is configured together require a release lever, the release lever has an arrangement on a rotatable support shaft paper near the outlet of the housing, in most cases, the support shaft is disposed away from the thermal head the position of a rotatable support shaft. 相应地,需要一结构来传递该释放杆的操作力,从而导致增加了部件的数目。 Accordingly, a need to transmit a configuration operation force of the release lever, thereby resulting in an increase the number of parts.

另一方面,已知一种热感打印机,例如,在日本专利公开号为N0.H7-309052的文件中,这种结构的打印机能够通过外盖的开和关相互作用而将热打印头远离压纸辊放置,而不需要释放杆的释放操作。 On the other hand, there is known a thermal printer, for example, Japanese Patent Publication No. N0.H7-309052 document, the printer of this structure through the cover opening and closing of the interaction of the thermal head remote from a platen roller is placed, without releasing the release operating lever.

该装置具有一与外盖的开和关相互作用而旋转的凸轮。 The device has a cam with a cover opening and closing rotation of interaction. 在外盖处于打开位置时,该热打印头由该凸轮给片簧施加压力而被压下,从而移动热打印头远离压纸辊。 The outer cover is in the open position, pressure is applied to the thermal head is depressed by the cam to the leaf spring, thereby moving the thermal head away from the platen roller.

然而,在这种结构中,片簧的压力一直作用,直到热打印头完全远离压纸辊。 However, in this configuration, the pressure plate has spring action, the thermal head until completely separated from the pressure roller. 在打开外盖过程中需要大的操作力。 It requires a large operating force during opening the cover. 因此,可以预料,尽管插纸或卡纸清除的空间可以是独立的,但打开一个用来清洗打印头的空间将是困难的。 Thus, it is contemplated, although insertion or paper jam clearance space may be independent, but to open a space for head cleaning would be difficult.

在这种方式中,该种需要前释放杆的装置需要两个检测开关来检测释放杆的状态和外盖的状态,并还需要一机构来传递释放杆的操作力。 In this apparatus, the need for this type of front release lever requires two detection switches to detect the release lever state and the state of the outer lid, and also needs a mechanism to transmit the operating force of the release lever. 因此,这有导致增加部件数目的不利因素。 Therefore, this has an adverse factors lead to an increase the number of parts. 并且,因为释放杆的操作力增加,也需要增加操作释放杆的空间。 Further, since the increase in the operating force of the release lever, but also requires additional space in the operation of the release lever. 这增加了装置的尺寸,且需要一传递释放杆的操作力的机构,从而产生了导致部件数目增加的不利因素。 This increases the size of the apparatus, and the operation force of the release lever mechanism requires a transfer, resulting in a disadvantage leading to increase in the number of components.

而且,在这种通过与外盖的开和关相互作用而使热打印头远离压纸辊的装置中,弹性元件的压力随热打印头远离压纸辊而增加。 Further, in this cover by opening and closing the interaction of the thermal head away from the platen roller means, the pressure of the elastic member increases with the thermal head away from the platen roller. 从而,可以预料将外盖打开到一较大程度是有困难的。 Thus, it is expected to open the cover a large extent is difficult.

本发明是针对上述情况而作出的,目的是提供一行式热打印机,该机在维修时如卡纸或打印头清洗的过程中提高可操作性,并减少部件数目以减小尺寸。 The present invention has been made in view of the above circumstances, an object to provide a line thermal printer, improving operability machine during maintenance such as a jam or a print head cleaning process and reduce the number of parts to reduce the size.

本发明的行式热感打印机包括:一个有开口的壳体,一可旋转地安装在壳体内的压纸辊,一安装成可与压纸辊接触和不接触的打印头模块,一用来支撑与压纸辊接触和不接触的打印头模块的打印头单元支撑板,一在与压纸辊压力接触的方向上用来对打印头施压的弹性元件,一安装在壳体上用来开和关开口部分的外盖,和一个与外盖的开和关操作相互作用的施压凸轮,当外盖处于关闭的位置时,它通过弹性元件的压力使打印头模块与压纸辊压力接触,当外盖处于打开的位置时它释放弹性元件的压力,且压下打印头支撑板到一预定的位置,从而移动打印头远离压纸辊。 The line thermal printer according to the present invention comprises: a housing opening, a rotatably mounted within the housing of the platen roller may be mounted in contact with a platen roller and the print head module is not in contact, for a supporting the head unit support plate in contact with the platen roller and the print head module is not in contact, a resilient member for pressing the print head in the direction of the contact pressure with the platen roller, a mounting for the housing an outer cover portion opening and closing the opening, and the opening and closing operation of the outer cover and a cam mechanism interacting, when the outer cover in the closed position, that the print head module and the platen roller by the pressure force of the resilient member contacts, when the cover is in the open position it releases the pressure of the elastic member, and pressing the print head support plate to a predetermined position, thereby moving the print head away from the platen roller.

在本发明中,该与外盖的开和关相互作用的可旋转的施压凸轮,当外盖处于关闭的位置时,它通过弹性元件的压力使打印头模块与压纸辊压力接触。 In the present invention, the outer lid opening and closing of the interaction rotatable cam mechanism, when the outer cover in the closed position, it makes the print head module by the pressure the resilient member in contact with the platen roller pressure. 当外盖处于打开的位置时,弹性元件的压力被释放,且被打印头支撑板压下到预定的位置,从而移动打印头模块脱离与压纸辊接触。 When the cover is in the open position, the pressure the resilient member is released, and the printhead support plate is depressed to a predetermined position, thereby moving the printhead module out of contact with the platen roller.

此外,打印机架可拆卸地连接于壳体的开口处,该打印机架可旋转地支撑着压纸辊,可旋转地支撑着打印头单元支撑板,从而支撑着打印头模块和弹性元件,此外可旋转地支撑着外盖,其中外盖有安装在可旋转的轴上的施压凸轮,当外盖处于打开位置时释放弹性元件的压力。 Further, the printer frame detachably connected to the opening of the housing, the printer frame rotatably supports the platen roller rotatably supported by the head unit support plate so as to support the printhead module and an elastic element, can furthermore rotatably supports the cover, wherein the cover has a cam mechanism mounted on a rotatable shaft, the pressure is released the elastic member when the outer lid in an open position.

在本发明中,被做成一个单元的打印机架包括主要部件如压纸辊、支撑着打印头模块和弹性元件的打印头单元支撑板、外盖和施压凸轮。 In the present invention, it is made comprising a main unit of the printer frame components such as the platen roller, supporting the head unit support plate printhead module and the resilient element, pressing the cover and the cam. 所以,主要部件安装入壳体内执行起来是容易的。 Therefore, to implement the main components, into the housing it is easy. 通过从壳体内取出整个部分而暴露出主要部件是可能的,在执行维修过程中便于部件的更换。 By removing the entire part from the housing to expose the main components it is possible, to facilitate replacement of parts performed in the repair process. 顺便说,仅打开外盖,打印头部分就可得到清洗。 Incidentally, only the outer cover is opened, the printhead portion can be cleaned.

此外,施压凸轮设有一当外盖处于打开的位置时用来压住打印头单元支撑板的一预定位置的第一凸轮面,和一当外盖处于关闭位置时用来压住弹性元件的第二凸轮面。 Further, the pressurizing cam is provided with a first cam surface of a predetermined position when the cover is in the open position for pressing the head unit support plate, and the outer one when the cover is pressed to the closed position the resilient member second cam surface.

在本发明中,如该施压凸轮通过与外盖的开和关相互作用而旋转,那么,当外盖处于打开位置时,施压凸轮在第一凸轮面压住打印头单元支撑板的一预定位置,从而使打印头逐渐移离压纸辊。 In the present invention, if the pressurizing cam is rotated by the opening and closing cover interaction, then, when the cover is in the open position, the cam presses the pressing head unit support plate in a first cam surface predetermined position so that the print head is gradually moved away from the platen roller. 同时,施压凸轮的第二凸轮面与弹性元件脱离接触。 At the same time, the second cam surface of the cam pressing the resilient member out of contact. 相应地,第二凸轮面的压力得以释放,从而平稳地进行打印头模块的释放操作。 Accordingly, the pressure of the second cam surface is released to smoothly perform the release operation of the printhead module.

此外,施压凸轮有一压力接收面,当在即将完全打开外盖之前的位置时,它用来接收弹性元件的压力。 Further, there is a pressing cam pressure receiving surface, when the position before the outer cover will be completely open, for receiving the elastic member which pressures.

在本发明中,如果施压凸轮由于与外盖的开和关相互作用而转动,当在即将完全打开外盖之前的位置时,施压凸轮的第二凸轮面与弹性元件脱离接触。 In the present invention, if the pressurizing cam is due to opening and closing of the cover interacting rotated, when the position of the cover before coming fully open, the second pressing cam face in contact with the resilient member from the cam. 在第二凸轮面对弹性元件的压力释放后,弹性元件与压力接收面相接合,由此将压力附加于外盖的打开力之上,保持外盖处于打开的位置。 After the second cam face of the elastic member to release the pressure, the resilient member engaging with the pressure receiving surface, whereby in addition to the pressure opening force on the outer lid, keeping the lid in the open position.

此外,施压凸轮设有第三凸轮面,当外盖处于闭合位置时,其施压于安装在壳体内检测开关的可动部分。 Further, the pressurizing cam is provided with a third cam surface, when the cover is in the closed position, in which pressure detection switch mounted within the housing of the movable portion.

在本发明中,因为施压凸轮的第三凸轮面通过外盖的打开动作移动检测开关的可动部分,所以仅通过一个检测开关,外盖的开和关动作以及打印头模块与压纸辊的接触和不接触的动作都能被检测到。 In the present invention, since the third cam surface by pressing the cam outer lid opening operation of moving the movable portion of the detection switch, so that by only one detection switch, the cover opening and closing operation of the print head and the platen roller and the module the operation of the contact and not in contact can be detected.

图1是显示本发明的行式热感打印机的打印机单元的后视图。 FIG. 1 is a rear view of the printer unit of a line thermal printer of the present invention.

图2是图1中的打印机单元沿AA线的剖视图;图3是显示图2中的外盖被打开的状态的剖视图;图4是图1中的打印机单元沿BB线的剖视图;图5是显示图4中的外盖被打开的状态的剖视图。 FIG 2 is a cross-sectional view of the printer unit along the line AA in FIG. 1; FIG. 3 is a sectional view of the outer cover is opened in the display of FIG. 2; FIG. 4 is a cross-sectional view of the printer unit along line BB in FIG. 1; FIG. 5 is a cross-sectional view of the outer cover is opened in Figure 4 shows. 及下面参照附图详细描述本发明的实施例。 Embodiments of the present invention will be described in detail below and with reference to the accompanying drawings.

图1至图5显示了本发明的行式热感打印机的一实施例,其中图1显示了一个打印机单元,它可拆卸地安装在下文提到的壳体内。 Figures 1 to 5 show an embodiment of a line thermal printer of the present invention, wherein FIG 1 shows a printer unit detachably mounted in the housing mentioned below.

在附图中,壳体10有一在前部11的上侧形成的开口12,如图3和图5所示。 In the drawings, the housing 10 has an opening 11 on the side of a front portion 12 formed, as shown in FIGS. 3 and 5. 通过开口12,图1中所示的打印机单元100能够可拆卸地安装。 Through the opening 12, as shown in FIG. 1 in the printer unit 100 can be detachably mounted.

该打印机单元100有一如图1所示的通常是长方U型的打印机架110。 The printer unit 100 in FIG. 1 has a U-shape is generally rectangular printer frame 110 as shown. 该打印机架110具有可旋转地安装在它的边框111,112上的套筒120。 The printer frame 110 has a sleeve 120 rotatably mounted on its borders 111 and 112. 该套筒120与外盖130和臂131形成一整体,从而外盖130可通过转动套筒120来实现开和关。 The sleeve 120 and the outer cover 130 and the arm 131 is formed integrally, whereby the opening 130 can be achieved by rotating the sleeve 120 and closing the cover.

而且,套筒120有一轴孔(未示出),该孔中装配有横截面为矩形的支撑轴140的一端。 Further, the sleeve 120 has a shaft hole (not shown), the hole is equipped with a rectangular cross section at one end of the support shaft 140. 该支撑轴140上布有三个施压凸轮141-143。 The cloth on the support shaft 140 has three cam mechanism 141-143. 这些施压凸轮141-143设有一用来推动在下文提到的打印头支撑板160、161的弯曲部分162的第一凸轮面、一用来推动在下文提到的片簧170的第二凸轮面145,以及一当释放加于在下文提到的片簧170的压力时用来接收片簧170的施压部分171-174的偏压力的片簧接收面146。 The pressure to push the cams 141 is provided with a print head support plate hereinafter referred curved surface portion 162 of the first cam 160 and 161, a leaf spring for urging the second cam 170 mentioned below of surface 145, and 170 for receiving a leaf spring pressing portion of the biasing force of 171-174 a pressure applied is released when the leaf spring 170 mentioned below of the leaf spring receiving surface 146.

然而,施压凸轮141还设有第三凸轮面147,用来压住装在例如面板20或类似处的检测开关21的可移动部分22。 However, the pressure cam 141 is also provided with a third cam surface 147, for example, mounted for pressing detection switch 20 or the like at the movable portion 22 of the panel 21. 通过检测开关21的开/关,外盖130的开/关状态和在下文提到的打印头模块180的释放状态可被检测到。 By detecting the on / off switch 21, the cover open / close state and a printhead module in the release state mentioned below may be 180 to 130 is detected.

而且,打印头模块支撑轴150在其两端被可转动地装于在套筒120之下侧打印机架110的边板111,112上。 Further, the print head module on the support shaft 150 at both ends thereof is rotatably mounted on the sleeve 120 below the side plate 110 of the frame 111 of the printer. 该打印头模块支撑轴150在两端有打印头单元支撑臂160,161。 The print head module 150 has a support shaft head unit support arms 160, 161 at both ends. 该打印头单元支撑臂160、161在靠上的末端有向内互相弯曲的弯曲部分162。 The head unit support arms 160, 161 have mutually inwardly bent portion 162 bent at the end by the.

该弯曲部分162被施压凸轮141,143的第一凸轮面压迫,从而打印头模块180通过后面所述的加压而被释放。 The curved portion of the cam 162 is pressed a first cam surface 141, 143 of the compression, so that the print head module 180 is released by pressing the back.

每一打印头单元支撑臂160、161有一与之成为一整体的打印头单元支撑板163。 Each head unit support arms 160, 161 become integral therewith a print head unit support plate 163. 打印头单元支撑板163具有凹槽164-167,用来在加压部分171一174朝着施压凸轮141-143伸展在下文提到的片簧170。 Head unit support plate 163 has a groove 164-167, the pressing portion 171 to a cam 174 toward the pressure plate springs 141-143 extend in the below-mentioned 170.

打印头单元支撑板163在一表面上有通常是长方U型的片簧170和一由许多螺栓22固定在那里的铝质打印头模块。 Head unit support plate 163 has on a surface is generally rectangular U-shaped leaf spring 170 and a plurality of bolts 22 is fixed by the aluminum there printhead module. 片簧170具有向后上方折叠的加压部分171-174。 The leaf spring 170 has a pressing portion is folded back over 171-174. 这些加压部分171-174通过打印头单元支撑板163的凹槽164-167而伸展到打印头单元支撑板163的后部,以致面向施压凸轮141-143。 These pressing portions 171-174 extend to the rear and the head unit support plate 163 by the head unit support plate 164-167163 groove, so that the pressure cam faces 141-143.

打印头模块180和一个在表面具有未示出的加热元件(打印头)的陶瓷基底181相固定。 Printhead module 180 and the ceramic substrate 181 having a heating element (print head), not shown, fixed to the surface. 该陶瓷基底181在下部有一密封部分182,用来密封一个由IC片构成的驱动器或类似物。 The ceramic substrate 181 has a lower portion in the sealing portion 182 to seal a driver or the like constituted by an IC chip. 打印头模块180在下部有一保护外壳184,来保护通过一螺栓183固定的密封部分182。 Printhead module 180 has a protective housing 184 at a lower portion, a bolt 183 is protected by a fixed seal portion 182.

而且,打印机架110的边板111,112在一低于套筒120的固定位置上可旋转地支撑着支撑轴190的末端191,192。 Further, the printer frame 111, 112 of the side plate 110 in a stationary position below a sleeve 120 rotatably supports the upper end of the support shaft 191, 192 190. 支撑轴190和一压纸辊193被固定在上面。 A support shaft 190 and the platen roller 193 is fixed thereto. 支撑轴190在一端侧具有压纸辊驱动齿轮194。 Support shaft 190 has a platen roller drive gear 194 at one end. 压纸辊驱动齿轮194被安装在打印机单元100的壳体10的内部时与设置在壳体10内的一个驱动机构的驱动齿轮(未示出)相啮合。 When the platen roller drive gear 194 is mounted inside the housing 10 of the printer unit 100 is provided with a driving gear driving mechanism in the housing 10 (not shown) engaged.

壳体10在其下侧的前部11处设有插入孔13。 The front housing portion 10 at its lower side 11 is provided at the insertion hole 13. 该插入孔13的截面为喇叭形,以使得打印纸30的前端可以很容易地插入。 The cross section of the insertion hole 13 is flared, so that the front end of the printing paper 30 can be easily inserted. 插入孔13有一由适度向上弯曲表面形成的导向部分14,以使得插入插入孔13的打印纸30可以被导向上方。 By the insertion hole 13 has a moderately curved surface formed upwardly directed portion 14, so that the printing paper 13 inserted into the insertion hole 30 can be directed upward.

插入孔13在深处设有一向上伸展到打印头模块180和压纸辊193的接合部分的导向通道15。 Deep in the insertion hole 13 is provided with upwardly extending guide channel to the printhead module 180 and the engagement portion 193 of the platen roller 15. 导向通道15在深处设有一伸展到打印头模块180和压纸辊193的接合部分附近的导向板16。 The guide channel 15 is provided with a deep extending into the head block 180 and the guide plate close to the engagement portion 193 of the platen roller 16.

在导向通道15里有一未示出的纸张检测器。 In the guide passage 15, there is not shown a sheet detector. 当检测到一张通过插入孔13插入的打印纸30时,前面提到的驱动机构(未示出)被驱动来旋转压纸辊193。 When detecting a (not shown) is driven to rotate the platen roller 193 by a driving mechanism 30, the aforementioned insertion hole 13 is inserted the printing paper.

如果一打印纸30的前端沿导向通道15和导向板16被装入到打印头模块180和压纸辊193的接合部分,那么压纸辊193转动,使得打印纸30被绕在压纸辊193的环形表面上。 If a front end of the paper 15 along the guide channel 30 and the guide plate 16 is loaded into the engaging portion 180 and the platen roller 193 of the printhead module, the platen roller 193 is rotated, so that the printing paper 30 is wound around the platen roller 193 the annular upper surface.

在外盖130内对应于压纸辊193的位置设有一个出口132,以使得打印纸在打印后排出。 130 corresponds to the position of the platen roller 193 of the outer cover is provided with an outlet 132, so that the printing paper is discharged after printing. 而且,该出口132有一曲面朝向壳体10的前部11的导向部分133。 Further, the outlet 132 has a curved surface toward the guide portion 11 of the housing 10 of the front portion 133. 打印过的打印纸30的前端通过出口132被排出,同时由导向部分133引导。 The front end of the printed printing paper 30 is discharged through the outlet 132, while guided by the guide portion 133.

在一打印纸30上打印时,需首先打开壳体内的电源(未示出),然后通过壳体10的前部11的插入孔13插入打印纸30的一端。 When printing on a printing sheet 30, need to turn on power in the housing (not shown), and an end of the printing paper 13 is inserted through the insertion hole 30 of the housing 10 of the front portion 11. 此时,由于插入孔的横截面为喇叭形,打印纸30一端很容易插入。 At this time, since the cross section of the insertion hole is flared, one end of the printing paper 30 is easily inserted. 打印纸30在该端通过适度向上弯曲的导向部分14而引向导向通道15的上方。 The end of the printing paper 30 by a moderately curved upwardly directed guide portions 14 and 15 of the upper guide passage.

此时,打印纸30的插入被(未示出的)在导向通道15里面的纸张检测器检测到,从而在壳体内的未示出的驱动机构被驱动,来转动压纸辊193。 At this time, the printing paper 30 is inserted (not shown) in the sheet guide passage 15 inside the detector, whereby the drive mechanism in a housing (not shown) is driven to rotate the platen roller 193.

当打印纸30的前端沿着导向板16被插入到打印头模块180和压纸辊193的接合部分时,打印纸30被未示出的打印头模块180的加热元件(打印头)打印,同时通过压纸辊193的旋转绕在压纸辊193的环形外表面上。 When the leading end of the paper 30 along the guide plate 16 is inserted into the head block 180 and the platen roller 193 of the joint portion sharing the printing paper 30 is (printhead) print head module (not shown) of the heating element 180, while by rotation of the platen roller 193 is wound around the annular outer surface 193 of the platen roller.

随着(未示出的)加热元件(打印头)的打印操作(行式热感打印机),打印纸30的前端通过压纸辊193的旋转而向着外盖130的开口132排出。 With the heating element (print head) (not shown) of the printing operation (line thermal printer), the front end of the printing paper 30 toward the outer cover 132 and discharge opening 130 by the rotation of the platen roller 193. 同时,打印纸30的前端被送往出口132处,同时被朝向壳体10的前部11弯曲的导向部分133的导引,然后被从出口132排出。 Meanwhile, the front end of the printing paper 30 is sent to the outlet 132, while the front housing 10 toward the curved guide 11 of the guide portion 133, and is then discharged from the outlet 132.

当打印纸30上的打印结束且打印纸30的后端从压纸辊193释放出时,在壳体10内未示出的驱动机构停止驱动,压纸辊193停止转动。 When printing on the printing paper 30 and the end 30 when the rear end of the paper released from the platen roller 193, a drive mechanism within the housing 10 (not shown) stops driving the platen roller 193 stops rotating.

当有这样的情况发时,例如,在打印过程中卡纸,卡纸可通过下述的程序来解决。 When this is the case made, for example, paper jam during printing, the paper jam can be solved by the following procedure.

这就是,将外盖130从图2和图4所示的状态沿箭头所示的方向(逆时针)转动到图3和图5所示的状态。 That is, the direction (counterclockwise) as shown from the state shown in FIG. 2 and FIG. 4 the cover 130 is rotated to the state shown in the arrow in FIG. 3 and FIG. 同时,图1中所示的套筒120和外盖130的臂131一起沿同样的方向旋转,附于套筒120上的支撑轴140也因此沿同样的方向旋转。 Meanwhile, as shown in FIG. 1 of the sleeve 120 and the arm 131 with the cover 130 is rotated in the same direction, it is attached to the support shaft 140 on the sleeve 120 so that the rotation in the same direction. 这导致固定在支撑轴140上的三个施压凸轮141-143沿逆时针旋转。 This results in three fixed on the support shaft 140 in the pressing cams 141 rotate counterclockwise.

在这些施压凸轮141-143的旋转过程中,施压凸轮141在第三表面147首先从检测开关21的可动部分22离开。 During the rotation of the pressing cams 141, the cam 141 pressing at the third surface 147 is separated from the first detection switch 21, the movable portion 22. 由于可动部分22的压力的移去,从而作出打开外盖130和释放打印头模块180的检测信号。 Removing pressure from the movable portion 22, thereby making signal detection module 130 and a release print head cover 180 is opened.

同时,压着片簧170的各个施压部分171-174的施压凸轮141-143的第二表面145上逐渐地从这些施压部分171-174移离,从而释放施压部分171-174的压力。 Meanwhile, each of the leaf springs pressing pressure of the pressing cam portion 170 on the second surface 145 171-174 141-143 progressively from the pressing portion to move away from 171-174, thereby releasing the pressing portions 171-174 pressure.

而且,同时,在支撑轴140单元两端的施压凸轮141、143的第一凸轮表面144下压打印头单元支撑臂160,161的上部弯曲部分162。 Further, while, under pressure from both ends of the support shaft 140 of the cam unit 144 of the first cam surface 141, 143 of the press head unit support arms 160, 161 of the upper portion of the bent portion 162. 由于该下压力,该打印头单元支撑臂160,161绕打印头模块支撑轴150逆时针旋转,从而逐渐地将安装于打印头单元支撑板163上的打印头模块180移离压纸辊193。 Due to the lower pressure, the head unit support arms 160, 161 about the support shaft printhead module 150 rotates counterclockwise, thereby gradually the printhead module mounted to the head unit support plate 163 180 193 moved away from the platen roller.

同时,压着片簧170的施压部分171-174的施压凸轮141-143的第二表面145逐渐地移离开这些施压部分171-174,如上所述,并释放各个施压部分171-174上的下压力。 Meanwhile, the leaf spring 170 pressing the pressing surface of the second pressing cam portion 145 171-174 141-143 progressively move away from these pressing portions 171-174, as described above, the pressing and releasing the respective portion 171- under pressure on the 174. 相应地,施压凸轮141,143的第一表面144施加于该弯曲部分162上的下压力减小。 Accordingly, a first cam surface pressing at a pressure of 144 to 141, 143 is applied to the curved portion 162 is reduced. 随后,由于打印头单元支撑板163的旋转,打印头模块180被平稳地释放。 Then, since the rotary head unit support plate 163, the head block 180 is smoothly released.

当外盖130刚好在如图3和图5所示的打开位置之前打开时,施压部分171-174在它们的前端转换到施压凸轮141-143的片簧接收面146的一侧并压下这些片簧接收面146。 When the outer cover 130 is open just prior to the open position shown in FIG. 3 and FIG. 5, the side of the pressing plate spring portions 171-174 to convert pressure receiving surface of the cams 141 at their distal end 146 and pressed the leaf spring 146 at the receiving side. 该施加于片簧接收面146的施压部分171-174的推动力是沿打开外盖130的方向(沿逆时针方向)。 171-174 urging portion urging force is applied to the leaf spring receiving surface 146 is a direction (counterclockwise direction) in the opening of the cover 130. 相应地,外盖130在刚好打开之后的一个位置则由推动力推动,并且外盖130保持在打开的位置。 Accordingly, 130 in a position just after the cover is opened by the urging force of pushing and holding the cover 130 in the open position.

采用这种方式,如果外盖130被打开,那么该壳体10在它的开口部分12被打开。 In this manner, if the cover 130 is opened, then the housing 1012 is opened at its opening portion. 相应地拉出被卡住的打印纸30是容易的,例如,在打印头模块180和压纸辊193之间卡住的打印纸。 Accordingly, the jammed paper drawn 30 is easy, for example, between the print head 180 and platen roller 193 the jammed paper.

而且,因为如上所述,该热打印头181暴露在该壳体10的开口部分12,执行维修如打印头清洗是容易的。 Also, because as described above, the thermal head 181 is exposed in the opening portion 12 of the housing 10, perform maintenance such as head cleaning is easy.

采用这种方式,在本发明实施例中,施压凸轮141-143与外盖130的开和关操作互相作用而旋转。 In this manner, in the embodiment of the invention, the rotating operation of pressing the opening and closing lid 130 and the outer cams 141 interact. 因此,当外盖130处于闭合的位置时,作为一弹性元件的片簧170表现出其压力,从而使打印头模块180压力接触在压纸辊193上。 Thus, when the cover 130 is in the closed position, a leaf spring as the elastic member 170 exhibits its pressure, so that the print head module 180 in pressure contact with the platen roller 193. 当外盖130处于打开的位置时,片簧170被释放它的压力,使打印头单元支撑板163被推向一预定的位置,从而使得打印头模块180被移动而远离压纸辊193。 When the outer cover 130 in the open position, the leaf spring 170 is released its pressure, the head unit support plate 163 is pushed to a predetermined position so that the head block 180 is moved away from the platen roller 193. 相应地,保证了打开外盖130和释放打印头模块180的平滑操作。 Accordingly, to ensure release of the printhead module 130 and open the cover 180 of the smoothing operation.

而且,在本发明实施例中,打印机架110被作成一个单元,它包括主要的部件,例如压纸辊193,支撑打印头模块180和片簧170的打印头单元支撑板163,外盖130,以及通过与外盖的打开操作互相作用而使打印头模块180与压纸辊接触和不接触的施压凸轮141-143。 Further, in the embodiment of the present invention, 110 is made a unit of the printer frame, comprising a main component, for example, the platen roller 193, supporting the print head module head unit support plate 180 and the leaf spring 170 to 163, the cover 130, pressing cams 141 and the printhead module interacts with the opening operation of the outer cover 180 in contact with the platen roller and not in contact. 相应地,向壳体里的装配是便利的。 Accordingly, in the housing assembly is facilitated. 而且,通过从壳体中取出该单元部分,主要部件可以被暴露在外面,便于维修如更换零件。 Furthermore, by taking the unit portion out of the housing, the main component may be exposed to the outside, ease of maintenance such as replacement parts.

此外,在本发明实施例中,施压凸轮141-143通过与外盖130的开和关相互作用而旋转,当外盖130处于打开位置时,施压凸轮141-143在它们的第一凸轮表面144下压安装在打印头单元支撑板163的预定位置的各个弯曲部分162。 Further, in the embodiment of the present invention, the pressurizing cam is rotated by 141-143 130 interacts with the opening and closing of the cover, when the cover 130 is in the open position, the pressing cams 141 in their first cam each of the bending portion 162 at a predetermined position of the pressure surface 144 is mounted in the head unit support plate 163. 这使得打印头单元支撑板163旋转和打印头模块180从压纸辊193移离。 This makes the head unit support plate 163 and the rotation of the head block 180 moved away from the platen roller 193. 同时,施压凸轮141-143的第二凸轮表面145从片簧170移离。 Meanwhile, the pressing cams 141 second cam surface 145 moves away from the leaf spring 170. 相应地,由第二凸轮表面145施加于片簧170上的压力被释放,第一凸轮表面144在弯曲部分162上有一个减小的压力,从而提高可操作性。 Accordingly, the second cam surface 145 is applied by a pressure on the leaf spring 170 is released, the first cam surface 144 has a curved portion 162 of reduced pressure, thereby improving the operability.

尤其是,在本发明实施例中,当外盖在即将完全打开之前的位置时,施压凸轮141-143的第二凸轮表面145被远离于片簧170放置,以释放加于片簧170上的压力。 Particularly, in the embodiment of the present invention, when the outer cap immediately before the fully open position, the second pressing cam surface 145 of cams 141 are disposed away from the leaf spring 170 to release the leaf spring 170 is applied to pressure. 此后,片簧170的施压部分171-174产生一个对片簧接收面的压力,其中该面对施压凸轮141-143来说是一压力接收面。 Thereafter, the leaf spring pressing portion 170 generates a pressure of 171-174 spring receiving face sheet, wherein the face of the pressing cams 141 is a pressure receiving surface. 相应地,该压力被加到外盖130的打开力上,来保持外盖130处于打开的位置,而不需要锁定机构。 Accordingly, the pressure is applied to force open the cover 130, the cover 130 is held in an open position without a locking mechanism.

而且,在本发明实施例中,检测开关21的可动部分22借助外盖130的打开及第三凸轮表面147可以移动。 Further, in the embodiment of the present invention, the detection switch 21 the movable portion 22 is opened and the third cam surface 130 by means of an outer cover 147 can be moved. 从而可仅仅采用一个检测开关21就能够检测外盖130的开和关及打印头模块与压纸辊的接触和不接触。 Thereby using only one detection switch 21 and out of contact can be opened and closed and the printhead module 130 and the platen roller detect cover. 因此,部件的数目能被减少。 Thus, the number of parts can be reduced.

如上所述,根据本发明的行式热感打印机,与外盖的开和关相互作用而旋转的施压凸轮释放打印头模块而不承受弹性元件的压力,从而增加打开量。 As described above, the line thermal printer according to the present invention, the outer lid opening and closing of interaction rotatable pressing pressure release printhead modules do not receive a cam elastic element, thereby increasing the opening amount. 因此,在执行维修过程中如卡纸或打印头清洗,能够提高可操作性。 Thus, as a paper jam or print head cleaning performed during maintenance, operability can be improved.

而且,施压凸轮的第三凸轮表面通过外盖的打开运动来移动检测开关的可动部分。 Further, the pressure cam opening through the outer surface of the third cam moving the cover detection switch to move the movable portion. 从而可仅仅采用一个检测开关来检测外盖的打开和关闭运动以及打印头模块与压纸辊的接触和脱离动作,由此减少了部件数目。 Thereby using only a cover detection switch to detect the opening and closing movement into and out of operation as well as the print head module and the platen roller, thereby reducing the number of components.

Claims (5)

1. 1. 一种打印机,包括:一个有一开口部分的壳体;一个可旋转地安装在壳体内的压纸辊;一个有一打印部分、且被设置成与压纸辊接触和不接触的打印头模块;一个支撑打印头模块的打印头单元支撑板;一个用来在压力接触压纸辊的方向上施压于打印头模块的弹性元件;一个安装在壳体内以所述开口部分的开和关的方式实现开和关的外盖;及一个设置得和外盖的开和关相互作用的施压凸轮,当外盖处于关闭的位置时,通过弹性元件的压力使打印头模块与压纸辊接触,当外盖处于打开的位置时,释放弹性元件的压力,压住打印头单元支撑板的一预定的位置,从而移动打印头单元远离压纸辊。 A printer comprising: a housing having an opening portion; a platen roller a rotatably mounted within the housing; and a has a printing portion, and arranged to roll in contact with the platen and not in contact with the print head module; a printhead module supporting the head unit support plate; to a pressure contact in the direction of the platen roller presses against the elastic element of the printhead module; mounted within the housing in a manner of the opening and closing of the opening portion to achieve opening and closing of the cover; and a set of opening and closing of the interaction of the cam mechanism and the outer cover, when the outer cover in the closed position by the pressure of the elastic member and the print head module is in contact with the platen roller, when in the open position of the cover, release the pressure of the elastic member, presses the printing position of the head of a predetermined unit support plate so as to move the print head away from the platen roller unit.
2. 2. 根据权利要求1所述的一种打印机,其特征在于还包括:一可拆卸地附着于壳体的开口处的打印机架,该打印机架可旋转地支撑着压纸辊,一个可旋转地支撑着打印头单元支撑板,从而来支撑打印头和弹性元件,并且还可旋转地支撑外盖,其中外盖有一安装在可旋转的轴上的施压凸轮,当外盖处于打开的位置时来释放弹性元件的压力。 A printer apparatus according to claim 1, characterized by further comprising: a detachably attached to the printer frame opening of the housing, the printer frame rotatably supports the platen roller, rotatably supported by a print head unit support plate so as to support the resilient member and the print head, and also rotatably supports the cover, wherein the cover is mounted on a rotatable shaft of the cam mechanism, when the cover is in the open position to release the pressure of the elastic member.
3. 3. 根据权利要求2所述的一种打印机,其特征在于,施压凸轮有第一凸轮表面和第二凸轮表面,当外盖处于打开的位置时,第一凸轮表面压住打印头单元支撑板的一预定的位置,当所述外盖处于闭合的位置时,第二凸轮表面压住所述弹性元件。 A printer as claimed in claim 2, wherein the cam mechanism has a first cam surface and a second cam surface when the cover is in the open position, the first cam surface presses the head unit support plate a predetermined position, when the outer cap is in the closed position, the second cam surface of the elastic member presses.
4. 4. 根据权利要求1所述的一种打印机,其特征在于,施压凸轮有一压力接收面,当外盖处于即将完全打开之前的位置时,该压力接收面用来接收弹性元件板的压力。 A printer as claimed in claim 1, wherein the cam mechanism has a pressure receiving surface, when the cover is in the fully open position immediately before the pressure receiving surface for receiving the pressure of the elastic plate member.
5. 5. 根据权利要求1所述的一种打印机,其特征在于,施压凸轮有一第三凸轮表面,当外盖处于闭合的位置时,第三凸轮表面压住安装在壳体内的检测开关的可动部分。 A printer as claimed in claim 1, wherein the cam mechanism has a third cam surface, when the cover is in the closed position, third cam surface mounted within the housing presses the detection switch movable portion .
CN 98117874 1997-07-30 1998-07-30 Printer apparatus CN1210789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9205065A JPH1148507A (en) 1997-07-30 1997-07-30 Line thermal printer

Publications (1)

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CN1210789A true CN1210789A (en) 1999-03-17

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Application Number Title Priority Date Filing Date
CN 98117874 CN1210789A (en) 1997-07-30 1998-07-30 Printer apparatus

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EP (1) EP0894640A3 (en)
JP (1) JPH1148507A (en)
KR (1) KR19990014280A (en)
CN (1) CN1210789A (en)
CA (1) CA2241401A1 (en)
SG (1) SG74066A1 (en)

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CN101088767B (en) * 2006-06-12 2010-08-25 精工爱普生株式会社 Thermal printer
CN101811398B (en) * 2006-06-29 2012-01-04 东芝泰格有限公司 Thermal printer and printing device
CN106864047A (en) * 2017-03-03 2017-06-20 上海威侃电子材料有限公司 Printhead and the automatic adjusting mechanism in rubber roll gap

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JP3734753B2 (en) * 2001-12-28 2006-01-11 セイコーインスツル株式会社 Thermal printer
KR101128439B1 (en) * 2003-11-26 2012-03-27 주식회사신도리코 Paper oulet device for removing jammed paper
KR100619045B1 (en) 2004-08-16 2006-08-31 삼성전자주식회사 Thermal type image forming apparatus and method to remove jamed media thereof
JP4529732B2 (en) * 2005-03-01 2010-08-25 ブラザー工業株式会社 Tape printer
KR100720720B1 (en) 2005-10-19 2007-05-22 삼성전자주식회사 Automatic document feeder and the using the same
JP5811515B2 (en) * 2010-03-30 2015-11-11 セイコーエプソン株式会社 recording device
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CN101088767B (en) * 2006-06-12 2010-08-25 精工爱普生株式会社 Thermal printer
CN101811398B (en) * 2006-06-29 2012-01-04 东芝泰格有限公司 Thermal printer and printing device
CN106864047A (en) * 2017-03-03 2017-06-20 上海威侃电子材料有限公司 Printhead and the automatic adjusting mechanism in rubber roll gap

Also Published As

Publication number Publication date
SG74066A1 (en) 2000-07-18
CA2241401A1 (en) 1999-01-30
KR19990014280A (en) 1999-02-25
EP0894640A3 (en) 1999-07-28
EP0894640A2 (en) 1999-02-03
JPH1148507A (en) 1999-02-23

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