JPH04541U

JPH04541U -

Info

Publication number: JPH04541U
Application number: JP4076790U
Authority: JP
Priority date: 1990-04-17
Filing date: 1990-04-17
Publication date: 1992-01-06

Description

[Brief explanation of the drawing]

第１図乃至第４図は本考案の第１の実施例を示
すもので、第１図は一部切断平面図、第２〜４図
はインク押圧の各段階を説明する一部切欠正面図
である。第５図乃至第７図は第２の実施例を示す
インク押圧の各段階を説明する一部切欠正面図で
ある。第８図乃至第９図は第３の実施例を示すイ
ンク押圧の各段階を説明する一部切欠正面図であ
る。第１０図乃至第１１図は第４の実施例を示す
インク押圧の各段階を説明する一部切欠正面図で
ある。１……印字ヘツド、３……キヤリツジ、４……
インクバツグ、５……インクケース、１０，２０
，３０，４０……押圧レバー手段、１２，１６，
２２，２３，２６，３２，３６，４２……レバー
、１２ａ，２２ａ，３２ａ，４２ａ……押圧部、
１４，２４，４４……駆動手段（カム）、１９，
２９，３９，４９……付勢部材（ばね部材）、３
３……駆動手段（ソレノイド）、Ｓ……インクエ
ンドスイツチ（反射型フオトセンサ）、Ｓｗ１…
…インクエンドスイツチ、Ｓｗ２……回転検出ス
イツチ。 Figures 1 to 4 show a first embodiment of the present invention, with Figure 1 being a partially cutaway plan view, and Figures 2 to 4 being a partially cutaway front view illustrating each stage of ink pressing. It is. 5 to 7 are partially cutaway front views illustrating each stage of ink pressing according to the second embodiment. FIGS. 8 to 9 are partially cutaway front views illustrating each stage of ink pressing according to the third embodiment. 10 to 11 are partially cutaway front views illustrating each stage of ink pressing according to the fourth embodiment. 1...Print head, 3...Carriage, 4...
Ink bag, 5... Ink case, 10, 20
, 30, 40...Press lever means, 12, 16,
22, 23, 26, 32, 36, 42... Lever, 12a, 22a, 32a, 42a... Pressing part,
14, 24, 44...driving means (cam), 19,
29, 39, 49... biasing member (spring member), 3
3... Drive means (solenoid), S... Ink end switch (reflection type photo sensor), Sw1...
...Ink end switch, Sw2... Rotation detection switch.

Claims

[Scope of Claim for Utility Model Registration] (1) An ink case housing an ink bag connected to a printing head mounted on a carriage, and an ink case placed on the ink bag and following the deformation of the ink bag. It has a presser plate that is displaced by the presser plate, and a pressing part that can press the presser plate, and is supported so as to be able to swing freely.At normal times, the pressing part is in a non-contact state with the presser plate, and when the presser plate is oscillating, the presser plate is moved. An inkjet printer comprising a pressing lever means for pressing the ink bag via the pressing plate by a pressing part, and a driving means for swinging the pressing lever means during purging. (2) In claim 1, the driving means is a cam rotatably driven by a motor, and the pressing lever means is attached with a biasing member that biases the pressing portion in a direction to press the presser plate. The pressing lever means is regulated by the cam and has a first position in which the pressing part is not in contact with the presser plate, and a first position in which the pressing part is regulated by the cam and is urged by the urging member to press the pressing part. The second part is in contact with the presser plate.
An inkjet printer characterized in that it can swing between two positions. (3) In claim 1, the pressing lever means includes a first lever that is swung by the driving means, and a first lever that is rotatably supported coaxially with the first lever and that has the pressing portion. and a spring member hooked between the two levers, one of the levers is provided with a regulating protrusion that can be engaged with the other lever, and the first lever is swingable between a rest position and an operating position, and when the first lever is in the rest position, the regulating protrusion comes into contact with the other lever, and the two levers are integrally moved. and when the first lever is in the operating position, the regulating protrusion and the other lever are separated and the spring force of the spring member acts on the second lever. et printer. (4) In claim 3, the pressing lever means includes a third lever interposed between the second lever and the holding plate, and the third lever presses the pressing portion of the holding plate. an inkjet printer, the inkjet printer having an inkjet printer, which is swingably supported by the ink case, and is biased by the second lever to press the presser plate. (5) The inkjet printer according to claim 3 or 4, wherein the driving means is a cam that is rotationally driven during purging. (6) The inkjet printer according to claim 3 or 4, wherein the drive means is a solenoid having a drive shaft that moves forward and backward. (7) The inkjet printer according to claim 2 or 5, further comprising a rotation detection switch for the cam which can be turned on and off by swinging the pressing lever means. (8) The inkjet printer according to claim 2, 3 or 4, further comprising an ink end switch which can be turned on and off by swinging the pressure lever means.