JPH0222833U

JPH0222833U -

Info

Publication number: JPH0222833U
Application number: JP10111188U
Authority: JP
Priority date: 1988-08-01
Filing date: 1988-08-01
Publication date: 1990-02-15

Description

[Brief explanation of drawings]

第１図はこの考案に係るインク滴飛翔位置検出
装置の一実施例を適用したインクジエツトプリン
タを示す概略図、第２図はこの考案に係るインク
滴飛翔位置検出装置の一実施例の要部を示す斜視
図、第３図は同装置の電気回路を示すブロツク図
、第４図はこの考案に係るインク滴飛翔位置検出
装置を適用し得るインクジエツトプリンタを示す
概略図、第５図は偏向電極を示す断面図、第６図
はインク滴の偏向方向を示す説明図、第７図はイ
ンク滴の主走査方向の位置を検出する装置を示す
斜視図、第８図は同装置の平面説明図、第９図は
同装置の出力を示すグラフ、第１０図及び第１２
図は第２図の装置の検出動作のそれぞれ異なつた
状態を示す説明図、第１１図はインク滴の飛翔位
置ずれ状態を示す説明図、第１３図及び第１４図
は出力信号を示すグラフ、第１５図及び第１６図
は印字位置の補正状態を示す説明図、第１７図は
インク滴の主走査方向、副走査方向に対する配置
の一例を示す説明図、第１８図はこの考案の他の
実施例を示す概略図、第１９図はこの考案のさら
に他の実施例を示す概略図、第２０図は同実施例
の作用を示す説明図、第２１図は同実施例の作用
を示すグラフ、第２２図はインクジエツトプリン
タのステツチング点を示す斜視図、第２３図は従
来のインク滴飛翔位置検出装置を示す概略図であ
る。符号の説明、４ａ，４ｂ，４ｃ……ノズル、５
……帯電電極、６……偏向電極、７……記録用紙
、１６……インク滴飛翔位置検出装置、１７……
インク滴検出用電極、１８……スリツト、Ａ……
主走査方向、Ｂ……副走査方向、Ｃ……偏向方向
、Ｄ……インク滴。 FIG. 1 is a schematic diagram showing an inkjet printer to which an embodiment of the ink droplet flying position detecting device according to the invention is applied, and FIG. 2 is a main part of an embodiment of the ink droplet flying position detecting device according to the invention. 3 is a block diagram showing the electric circuit of the device, FIG. 4 is a schematic diagram showing an inkjet printer to which the ink droplet flying position detecting device according to the invention can be applied, and FIG. 5 is a deflection diagram. 6 is an explanatory diagram showing the deflection direction of an ink droplet, FIG. 7 is a perspective view showing a device for detecting the position of an ink droplet in the main scanning direction, and FIG. 8 is a plan view of the device. Figure 9 is a graph showing the output of the same device, Figures 10 and 12 are graphs showing the output of the same device.
The figures are explanatory diagrams showing different states of the detection operation of the device in Fig. 2, Fig. 11 is an explanatory diagram showing the state of ink droplet flight position deviation, and Figs. 13 and 14 are graphs showing output signals. 15 and 16 are explanatory diagrams showing the correction state of the printing position, FIG. 17 is an explanatory diagram showing an example of the arrangement of ink droplets in the main scanning direction and the sub-scanning direction, and FIG. 18 is an explanatory diagram showing an example of the arrangement of ink droplets in the main scanning direction and the sub scanning direction. FIG. 19 is a schematic diagram showing another embodiment of the invention; FIG. 20 is an explanatory diagram showing the action of the embodiment; FIG. 21 is a graph showing the action of the embodiment. , FIG. 22 is a perspective view showing a stitching point of an inkjet printer, and FIG. 23 is a schematic diagram showing a conventional ink droplet flying position detecting device. Explanation of symbols, 4a, 4b, 4c... Nozzle, 5
...Charging electrode, 6... Deflection electrode, 7... Recording paper, 16... Ink droplet flight position detection device, 17...
Ink droplet detection electrode, 18...slit, A...
Main scanning direction, B... Sub-scanning direction, C... Deflection direction, D... Ink droplet.

Claims

[Claims for Utility Model Registration] Ink droplets are ejected from a plurality of ink droplet ejection nozzles arranged linearly along the main scanning direction, charged by a charging electrode, and then ejected in the main scanning direction by a deflection electrode. In a device for detecting the flying position of an ink droplet that is deflected at an angle to the other side, an ink droplet detection electrode having an ink droplet detection area having a width corresponding to the deflection width of the ink droplet in the sub-scanning direction is provided. An ink droplet flight position detection device characterized by the following.