JPS62235152A - Sheet end sensing mechanism - Google Patents
Sheet end sensing mechanismInfo
- Publication number
- JPS62235152A JPS62235152A JP7866986A JP7866986A JPS62235152A JP S62235152 A JPS62235152 A JP S62235152A JP 7866986 A JP7866986 A JP 7866986A JP 7866986 A JP7866986 A JP 7866986A JP S62235152 A JPS62235152 A JP S62235152A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- sheet end
- sensor
- holes
- end sensing
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000003708 edge detection Methods 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Handling Of Cut Paper (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
- Controlling Sheets Or Webs (AREA)
Abstract
Description
【発明の詳細な説明】
［］産業上の利用分野〕
本発明は用紙端検出機構に関し、特に印字装置等の給紙
部における用紙端検出機構に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a paper edge detection mechanism, and more particularly to a paper edge detection mechanism in a paper feed section of a printing device or the like.
従来、この種の用紙端検出機構は、透過型センサなどを
用い、単に用紙の有り、無しの判断によって用紙端の検
出を行うようになっていた。Conventionally, this type of paper edge detection mechanism has used a transmission type sensor or the like to detect the paper edge simply by determining whether there is paper or not.
上述した従来の用紙端検出機構は、透過型センサなどを
使用している為、用紙に穴などを有する場合、特に用紙
幅方向の穴位置とセンサの用紙幅方向位置が一致してい
る・ような場合、用紙送り時、センサに最も早く到達す
る穴位置にて、用紙端の誤検出をしてしまい、用紙の第
１行印字位置が確保できないという欠点がある。The conventional paper edge detection mechanism described above uses a transmission type sensor, etc., so if the paper has holes, etc., it is difficult to ensure that the position of the hole in the width direction of the paper and the position of the sensor in the width direction of the paper match. In this case, when feeding the paper, the end of the paper is erroneously detected at the hole position that reaches the sensor earliest, and the printing position for the first line of the paper cannot be secured.
本発明の用紙端検出機構は、用紙挿入口に挿入されて送
られる用紙の端部を検出するセンサ手段と、該センナ手
段による前記用紙の検出位置を補正する用紙端検出補正
回路と、該用紙端検出補正回路を操作する操作手段とを
備えている。The paper edge detection mechanism of the present invention includes a sensor means for detecting the edge of paper inserted into a paper insertion slot and fed, a paper edge detection correction circuit for correcting the detection position of the paper by the sensor means, and a paper edge detection correction circuit for correcting the detection position of the paper by the sensor means. and operating means for operating the edge detection correction circuit.
次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図（ａ）及び（ｂ）は本発明の一実施例の平面図及
び部分断面を含む正面図、第１図（ｃ）は同図（ａ）の
Ａ−Ａ’線における断面図、第２図は本実絶倒に使用す
る回路ブロック図である。FIGS. 1(a) and (b) are a plan view and a front view including a partial cross section of an embodiment of the present invention, FIG. 1(c) is a sectional view taken along line AA' in FIG. 1(a), FIG. 2 is a circuit block diagram used in this test.
本実施例は用紙〕、穴２，３，４，５，６゜７、ガイド
ポケッｌ−８，９、センサ１０、用紙送りローラ１１，
１２、用紙端検出補正回路１３及び操作スイッチ１４を
有してなる。In this embodiment, paper], holes 2, 3, 4, 5, 6°7, guide pockets 1-8, 9, sensor 10, paper feed roller 11,
12, a paper edge detection correction circuit 13 and an operation switch 14.
用紙１は用紙送りローラ１１及び１２により矢印Ｂ方向
に送られ、後端部１ａがセンサ１０に到達した時点で、
図示しない印字部によって第１行目の印字が行なわれる
ようになっている９ところが、用紙１には複数個の穴２
ないし７を有し、特に穴２，３．４の用紙幅方向の位置
はセンサ１０の用紙端検出の用紙幅方向位置と一致して
いる。The paper 1 is sent in the direction of arrow B by paper feed rollers 11 and 12, and when the trailing edge 1a reaches the sensor 10,
The first line is printed by a printing unit (not shown)9, but the paper 1 has a plurality of holes 2.
In particular, the positions of the holes 2 and 3.4 in the paper width direction coincide with the paper width direction position of the sensor 10 for detecting the paper edge.
この場合には、用紙１の穴４がセンサ１０に到達した時
点で、センサ１０が用紙端と誤検出をしてしまい、用紙
１における第１行目の印字位置が不正確になってしまう
。そこで、第２図に示すように、用紙端検出補正回路１
３を設け、この用紙端検出補正回路１３により穴２，３
．４の数だけセンサ１０の検出動作を取消すことにより
、正確な用紙端検出を行なうことができる。なお、この
検出動作を取消すべき穴２．３．４の数は、操作スイッ
チ１４により簡単に設定することができ、本実施例では
、ス、イッチ１４は穴の数が、３個であるから、３°′
に設定すればよい。用紙端検出補正回路１３は、設定さ
れた数の穴２．３．４を用紙１が通過するに相当する時
間だけ、センサ１０の検出動作を取消すように作用する
。これにより、センサ１０は用紙１の後端部１ａを正確
に検出することができる。In this case, when the hole 4 of the paper 1 reaches the sensor 10, the sensor 10 mistakenly detects the edge of the paper, and the printing position of the first line on the paper 1 becomes inaccurate. Therefore, as shown in FIG.
3 is provided, and this paper edge detection correction circuit 13 detects holes 2 and 3.
．． By canceling the detection operations of the sensor 10 by the number of times 4, accurate paper edge detection can be performed. Note that the number of holes 2.3.4 for which this detection operation should be canceled can be easily set using the operation switch 14. In this embodiment, the number of holes 2.3.4 for the switch 14 is three. , 3°'
You can set it to . The paper edge detection correction circuit 13 operates to cancel the detection operation of the sensor 10 for a time corresponding to the paper 1 passing through the set number of holes 2.3.4. Thereby, the sensor 10 can accurately detect the trailing edge portion 1a of the paper 1.
以上説明したように本発明は、用紙端検出補正回路を設
け、用紙の穴位置による用紙端誤検出を収消すととによ
り、正確な用紙端検出を行うことができ、従って穴あき
の用紙でも使用できる効果がある。As explained above, the present invention provides a paper edge detection correction circuit to eliminate erroneous detection of the paper edge due to the position of the holes in the paper, thereby making it possible to accurately detect the paper edge. Therefore, even paper with holes can be used. There is an effect that can be done.
第１図（ａ＞及び＜ｂ）は本発明の一実施例の平面図及
び部分断面を含む正面図、第１図（ｃ）は同図（ａ）の
Ａ−Ａ’線における断面図、第２図は本実施例に使用す
る回路ブロック図である。
１・・・用紙、２，３，４，５，６．７・・・穴、８゜
９・・・ガイドボケ・ソト、１０・・・センサ、１１．
１２・・・用紙送りローラ、１３・・・用紙端検出補正
回路、１４・・・操作スイッチ。
牛！■
゛用雌リローラFIGS. 1(a) and 1(b) are a plan view and a front view including a partial cross section of an embodiment of the present invention, FIG. 1(c) is a sectional view taken along line AA' in FIG. 1(a), FIG. 2 is a circuit block diagram used in this embodiment. 1... Paper, 2, 3, 4, 5, 6.7... Hole, 8°9... Guide blur/soto, 10... Sensor, 11.
12... Paper feed roller, 13... Paper edge detection correction circuit, 14... Operation switch. Cow! ■ Female reroller for
Claims (1)
センサ手段と、該センサ手段による前記用紙の検出位置
を補正する用紙端検出補正回路と、該用紙端検出補正回
路を操作する操作手段とを備えることを特徴とする用紙
端検出機構。A sensor means for detecting the edge of the paper inserted into the paper insertion slot and fed, a paper edge detection correction circuit for correcting the detection position of the paper by the sensor means, and an operation means for operating the paper edge detection correction circuit. A paper edge detection mechanism comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7866986A JPS62235152A (en) | 1986-04-04 | 1986-04-04 | Sheet end sensing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7866986A JPS62235152A (en) | 1986-04-04 | 1986-04-04 | Sheet end sensing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62235152A true JPS62235152A (en) | 1987-10-15 |
Family
ID=13668268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7866986A Pending JPS62235152A (en) | 1986-04-04 | 1986-04-04 | Sheet end sensing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62235152A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01317939A (en) * | 1988-06-15 | 1989-12-22 | Hitachi Ltd | Paper sheet detecting method |
-
1986
- 1986-04-04 JP JP7866986A patent/JPS62235152A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01317939A (en) * | 1988-06-15 | 1989-12-22 | Hitachi Ltd | Paper sheet detecting method |
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