JPS63208458A - Device for detecting width and deviation of blank - Google Patents
Device for detecting width and deviation of blankInfo
- Publication number
- JPS63208458A JPS63208458A JP3891087A JP3891087A JPS63208458A JP S63208458 A JPS63208458 A JP S63208458A JP 3891087 A JP3891087 A JP 3891087A JP 3891087 A JP3891087 A JP 3891087A JP S63208458 A JPS63208458 A JP S63208458A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- light
- reflecting mirror
- rotating disk
- emitting element
- 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
- 230000004907 flux Effects 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000001788 irregular Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔概要〕
カット用紙を用いる印字装置において、発光素子と円形
の受光素子と、定速で回転する回転円板と、この回転円
板の回転により、取付は台に固定された円形の反射鏡に
、発光素子が送出する光束を投射させ、円形の軌跡を描
かせる反射鏡とを設け、該軌跡を描いた光束の反射光が
受光素子に受光するようにして、回転円板を支えるアー
ムで光束が遮断されて、得られる信号を基準とし、用紙
が光束を遮断して得られる信号から、不定型用紙の幅と
用紙搬送時の斜行とを簡単な装置で検知出来るようにし
た。[Detailed Description of the Invention] [Summary] A printing device that uses cut paper includes a light emitting element, a circular light receiving element, a rotating disk that rotates at a constant speed, and the rotation of the rotating disk to fix the installation to a stand. The light emitting element projects the luminous flux emitted by the light emitting element onto a circular reflecting mirror, which causes the light flux to draw a circular trajectory. A simple device detects the width of irregular-sized paper and skew during paper transport based on the signal obtained when the light beam is blocked by the arm supporting the disk, and from the signal obtained when the paper blocks the light beam. I made it possible.
本発明はカット用紙を用いて印字する印字装置に係り、
特に用紙搬送時の斜行や、定型用紙の外に不定型用紙を
使用する際の用紙幅を、経済的に検出する用紙幅及び斜
行検知装置に関する。The present invention relates to a printing device that prints using cut paper,
In particular, the present invention relates to a paper width and skew detection device that economically detects skew during paper conveyance and paper width when irregular-sized paper is used in addition to regular-sized paper.
カット用紙を用いて印字する印字装置の中には、ページ
印字装置の如く、ホッパの中心を案内として中心振り分
けで用紙の位置決めを行い、用紙の搬送を行って印字を
行うものがある。この場合、用紙カートリッジ等で供給
される定型用紙の外に、手差しによる不定型用紙も使用
可能であり、この不定型用紙はサイズが不定で任意の大
きさのものが使用される。Among printing devices that print using cut paper, there are some, such as page printing devices, that use the center of a hopper as a guide to position the paper by centrally distributing it, transport the paper, and perform printing. In this case, in addition to the regular paper supplied by a paper cartridge or the like, it is also possible to use irregular paper that is manually fed, and the irregular paper has an indeterminate size and can be of any size.
従って、用紙の幅を越える印字データが送られて来た場
合、用紙外へ印字が行われ、文字等の欠落や用紙外への
印字による印字装置の汚染が発生する危険性がある。又
用紙の搬送時に斜行が発生すると、印字品質の低下や紙
づまりを引き起こす原因となる。Therefore, if print data exceeding the width of the paper is sent, there is a risk that printing will be performed outside the paper, resulting in missing characters or contamination of the printing device due to printing outside the paper. Also, if skew occurs when paper is conveyed, it may cause deterioration in print quality or paper jams.
従って、不定型用紙の用紙幅及び用紙搬送時の斜行を経
済的に検知出来る装置が必要である。Therefore, there is a need for an apparatus that can economically detect the paper width of irregular-sized paper and the skew during paper transport.
第５図は従来の技術を説明する図である。 FIG. 5 is a diagram explaining the conventional technique.
第５図＋ａ）の場合は固定されたアーム１５に複数のセ
ンサ１６を並べて設け、このセンサ１６の内で用紙１２
を検出したセンサと検出しないセンサとの位置関係から
用紙幅を算出する。In the case of FIG.
The paper width is calculated from the positional relationship between the sensor that detected the paper and the sensor that did not detect the paper.
第５図（ｂ）の場合は、例えばスリット１８を設けた検
知板１９の先端に、用紙検知用のセンサ１７を取付け、
モータ２０により矢印Ｌ−Ｍ方向に検知板１９を移動さ
せ、センサ１７が用紙１２を検出した位置を、スリット
１８により検知板１９の移動量を測定するセンサ２１で
読取り、Ａ／Ｄ変換回路等で変換してから、用紙幅を算
出している。In the case of FIG. 5(b), for example, a sensor 17 for detecting paper is attached to the tip of a detection plate 19 provided with a slit 18,
The detection plate 19 is moved in the direction of arrow LM by the motor 20, and the position where the sensor 17 detects the paper 12 is read by the sensor 21 which measures the amount of movement of the detection plate 19 using the slit 18. After converting, the paper width is calculated.
第５図（ａ）に示す方法では、用紙幅の検知精度はセン
サ１６の個数に依存しており、精度を上げるためには、
センサ１６の個数を増加しなければならず、用紙の斜行
を検知するには、このアーム１５を複数設ける必要があ
り、高価となるという問題がある。In the method shown in FIG. 5(a), the paper width detection accuracy depends on the number of sensors 16, and in order to increase the accuracy,
The number of sensors 16 must be increased, and a plurality of arms 15 must be provided in order to detect the skew of the paper, resulting in a problem of high cost.
又第５図（ｂ）に示す方法は、Ａ／Ｄ変換回路等の複雑
なハードウェアを必要とするため、高価となると共に、
用紙の斜行を検知するためには、用紙１２の複数の位置
に対し複数回の測定を行って、基準点から用紙１２の検
出位置迄の距離を算出して判定する必要があり、処理が
複雑となるという問題がある。Furthermore, the method shown in FIG. 5(b) requires complicated hardware such as an A/D conversion circuit, which makes it expensive and
In order to detect skew feeding of paper, it is necessary to measure multiple times at multiple positions on the paper 12, calculate the distance from the reference point to the detection position on the paper 12, and make a determination. The problem is that it is complicated.
第１図は本発明の一実施例を説明する図である。 FIG. 1 is a diagram illustrating an embodiment of the present invention.
１は装置全体を制御する制御回路、２は発光素子、３は
発光素子２を中心に同心円を形成する受光素子、４は定
速で回転する回転円板、５は回転円板４の中心に取付け
られ発光素子２が送出する光束の光路を約９０度曲げる
反射鏡、６は反射鏡５が反射した光束の光路を約９０度
曲げ、回転円板４に設けた穴フの方向に送出する反射鏡
である。1 is a control circuit that controls the entire device, 2 is a light emitting element, 3 is a light receiving element that forms a concentric circle around the light emitting element 2, 4 is a rotating disk that rotates at a constant speed, and 5 is located at the center of the rotating disk 4. The attached reflector 6 bends the optical path of the light beam reflected by the light emitting element 2 by about 90 degrees, and the reflector 6 bends the optical path of the light beam reflected by the reflector 5 by about 90 degrees, and sends it out in the direction of the hole provided in the rotating disk 4. It is a reflective mirror.
７は回転円板４に設けた小さい穴、８は回転円板４を取
付けたアーム、９はモータ１０の回転を回転円板４に伝
達するローラ、１０は回転円板４を定速で回転させるモ
ータ、１１は反射鏡６が穴７を経て送出した光束を反射
し、穴７を経て反射鏡６に返送する反射鏡、１２は用紙
、１３は反射鏡６が送出する光束の軌跡である。7 is a small hole provided in the rotating disk 4, 8 is an arm to which the rotating disk 4 is attached, 9 is a roller that transmits the rotation of the motor 10 to the rotating disk 4, and 10 is rotating the rotating disk 4 at a constant speed. 11 is a reflector that reflects the light beam sent out by the reflector 6 through the hole 7 and returns it to the reflector 6 through the hole 7; 12 is a sheet of paper; and 13 is the locus of the light beam sent out by the reflector 6. .
制御回路１はモータ１０を定速で回転させることで、回
転円板４を回転させる共に、発光素子２を発光させ、反
射鏡５及び６を経て穴７を通して光束を反射鏡１３に送
出する。この光束は回転円板４の回転に伴い、反射鏡１
１上に軌跡１３を描きながら反射し、穴７を通り反射鏡
６，５を経て受光素子３上に同心円の軌跡を描きながら
受光さ６一
れる。By rotating the motor 10 at a constant speed, the control circuit 1 rotates the rotary disk 4, causes the light emitting element 2 to emit light, and sends a luminous flux to the reflector 13 through the hole 7 via the reflectors 5 and 6. This light flux is transmitted to the reflecting mirror 1 as the rotating disk 4 rotates.
The light is reflected on the light receiving element 3 while tracing a trajectory 13, passes through the hole 7, passes through the reflecting mirrors 6 and 5, and is received on the light receiving element 3 while tracing a concentric trajectory.
用紙１２が存在しない時、受光素子３に反射光が戻らな
いのは、アーム８に光束が遮られた時のみである。用紙
１２が検出位置に搬送されて来ると、反射鏡１１上の軌
跡１３は点線で示す範囲が、光束を遮られるため、受光
素子３の該当する範囲は受光しない。When the paper 12 is not present, the reflected light does not return to the light receiving element 3 only when the light beam is blocked by the arm 8. When the paper 12 is conveyed to the detection position, the range of the locus 13 on the reflecting mirror 11 indicated by the dotted line is blocked by the light flux, so that the corresponding range of the light receiving element 3 does not receive light.
従って、制御回路１は受光素子３からの受光信号に基づ
き、アーム８に光束が遮られてから、用紙１２により光
束が遮られるまでの時間を計数し、回転円板４の回転速
度から用紙幅を算出する。又、用紙１２に光束が遮られ
た後、再び光束が受光されてから、アーム８により光束
が遮られるまでの時間を計数し、先に計数した時間と比
較して、用紙１２が斜行しているか否かを判定する。Therefore, based on the light reception signal from the light receiving element 3, the control circuit 1 counts the time from when the light beam is blocked by the arm 8 until the light beam is blocked by the paper 12, and calculates the paper width based on the rotation speed of the rotating disk 4. Calculate. Also, after the light beam is blocked by the paper 12, the time from when the light flux is received again until the light flux is blocked by the arm 8 is counted, and compared with the previously counted time, it is determined whether the paper 12 is skewed. Determine whether or not the
上記構成とすることにより、制御回路１は回転円板４に
設けた反射鏡５と６により、発光素子２が送出する光束
を反射鏡１１上に、所定の半径を有する円弧状の軌跡１
３を描かせることが可能となる。従って、制御装置１は
この軌跡１３がアーム８によって遮られた点を基準とし
て、回転円板４の回転速度から、この軌跡１３を用紙１
２が、どのように遮るかによって、用紙幅と用紙搬送時
の斜行を検出することが出来る。With the above configuration, the control circuit 1 uses the reflecting mirrors 5 and 6 provided on the rotating disk 4 to direct the luminous flux emitted by the light emitting element 2 onto the reflecting mirror 11 in an arc-shaped trajectory 1 having a predetermined radius.
It becomes possible to draw 3. Therefore, the control device 1 uses the point where this trajectory 13 is interrupted by the arm 8 as a reference, and from the rotational speed of the rotary disk 4, the trajectory 13 is
2, it is possible to detect the width of the paper and the skew during transport of the paper.
第２図は第１図に示す機構部の断面図である。 FIG. 2 is a sectional view of the mechanism shown in FIG. 1.
第１図において、制御回路１はモータ１０を駆動してロ
ーラ９を介し、回転円板４を定速で回転させる。又、制
御回路１は発光素子２を発光させ、反射鏡５に垂直に光
束を投射させる。第２図は第１図ｘ−ｙ線に沿う断面図
で、反射鏡５で約９０度光路を曲げられた光束は、反射
鏡６で又約９０度光路を曲げられ、回転円板４に設けら
れた穴７を通り、取付は台１４に固定された反射鏡１１
に送出される。In FIG. 1, a control circuit 1 drives a motor 10 to rotate a rotary disk 4 at a constant speed via a roller 9. Further, the control circuit 1 causes the light emitting element 2 to emit light, and causes the light beam to be projected perpendicularly onto the reflecting mirror 5. FIG. 2 is a cross-sectional view taken along the line x-y in FIG. A reflecting mirror 11 fixed to a stand 14 is installed through the provided hole 7.
sent to.
反射鏡１１で反射した光束は点線に示す如く回転円板４
の穴７を通り、反射鏡６と５で夫々反射され、受光素子
３に入る。このように発光素子２から送出された光束が
、受光素子３に戻るように反射鏡５と６の反射角度は、
夫々調整される必要がある。The light beam reflected by the reflecting mirror 11 is directed to the rotating disk 4 as shown by the dotted line.
The light passes through the hole 7, is reflected by the reflecting mirrors 6 and 5, and enters the light receiving element 3. The reflection angles of the reflecting mirrors 5 and 6 are set so that the luminous flux sent out from the light emitting element 2 returns to the light receiving element 3 in this way.
Each needs to be adjusted.
又、回転円板４は取付は台１４に固定されたアーム８に
より、回転軸を経て保持されるため、回転円板４の穴７
がアーム８の上に来た時は、光路が遮断される。従って
、制御回路１は受光素子３からの受光信号が停止したこ
とで、この位置を検出出来る。更に、用紙１２が反射鏡
１１の上に搬送されて来ると、光路が遮断される。従っ
て、同様に制御回路１は受光素子３からの受光信号が停
止したことで、この位置を検出出来る。又更に、再び受
光素子３から受光した信号を得ることで、穴７が用紙１
２の上を通過したことを知り、この位置を検出すること
が出来る。Furthermore, since the rotating disk 4 is mounted via the rotating shaft by an arm 8 fixed to the stand 14, the hole 7 of the rotating disk 4 is
When the light reaches the top of the arm 8, the optical path is blocked. Therefore, the control circuit 1 can detect this position when the light reception signal from the light receiving element 3 has stopped. Furthermore, when the paper 12 is conveyed onto the reflecting mirror 11, the optical path is blocked. Therefore, similarly, the control circuit 1 can detect this position when the light reception signal from the light receiving element 3 has stopped. Furthermore, by obtaining the signal received from the light receiving element 3 again, the hole 7 is aligned with the paper 1.
2 and can detect this position.
第３図は第１図の動作原理を説明する図である。FIG. 3 is a diagram illustrating the operating principle of FIG. 1.
第３図（ａ）に示す如く、用紙１２が搬送されて来てい
ない時、回転円板４が矢印に示す方向に回転していると
すると、穴７がＡで示すアーム８の上に来た時光路が遮
断される。従って、第３図（ｂｌに示す如く、横軸を時
間とすると、■と■に示す位置で受光素子３の受光が停
止する。この■と■の間の時間は回転円板４の回転速度
で決定される。As shown in FIG. 3(a), when the paper 12 is not being conveyed and the rotating disk 4 is rotating in the direction shown by the arrow, the hole 7 will be above the arm 8 indicated by A. When the light path is interrupted, the light path is blocked. Therefore, as shown in FIG. 3 (bl), if the horizontal axis is time, the light receiving element 3 stops receiving light at the positions shown by ■ and ■. determined by
第３図（Ｃ）に示す如く、用紙１２が搬送されて来ると
、光路は用紙１２により穴７がＢの位置に来た時遮断さ
れ、Ｃの位置に来ると、再び受光素子３に受光される。As shown in FIG. 3(C), when the paper 12 is conveyed, the optical path is blocked by the paper 12 when the hole 7 reaches the position B, and when the hole 7 reaches the position C, the light is received by the light receiving element 3 again. be done.
従って、第３図（ｄｌに示す如く、■、■の外に■の位
置で受光素子３の受光が停止し、■の位置で再び受光す
る。用紙１２が斜行していない場合は、■と■の間の時
間と■と■の間の時間は等しく、且つ用紙１２の幅を表
す。Therefore, as shown in FIG. 3 (dl), the light receiving element 3 stops receiving light at the position of ■ outside of ■ and ■, and receives light again at the position of ■.If the paper 12 is not skewed, The time between and ■ and the time between ■ and ■ are equal and represent the width of the paper 12.
即ち、用紙１２はホッパの中心を案内として、中心振り
分けで用紙の位置決めを行って、搬送されて来るため、
予め第１図に示す軌跡１３が、用紙幅により遮られる位
置が定まっているからである。In other words, the paper 12 is conveyed by using the center of the hopper as a guide and positioning the paper by center distribution.
This is because the position where the locus 13 shown in FIG. 1 is interrupted by the sheet width is determined in advance.
従って、第３図（ｅｌに示す如く、用紙１２が斜行して
搬送されて来ると、穴７がＤの位置に来た時、光路が遮
断され、Ｅの位置に来た時再び受光素子３が受光する。Therefore, as shown in FIG. 3 (el), when the paper 12 is conveyed obliquely, when the hole 7 reaches the position D, the optical path is blocked, and when the hole 7 reaches the position E, the light receiving element 3 receives light.
従って、第３図（ｆｌに示す如く、■、■の外に■の位
置で受光素子３の受光が停止し、■の位置で再び受光す
る。この場合■と■の間の時間は■と■の間の時間より
大きく、用紙１２の斜行していることを表す。Therefore, as shown in FIG. 3 (fl), the light receiving element 3 stops receiving light at the position ■ outside of ■ and ■, and receives light again at the position ■. In this case, the time between ■ and ■ is This is greater than the time between (2) and indicates that the paper 12 is skewed.
第４図は第１図の動作を説明するフローチャートである
。FIG. 4 is a flowchart illustrating the operation of FIG. 1.
制御回路１はホッパにセットされた用紙がビックされた
かどうかを監視しており、用紙がピックされると、定型
用紙か否かを調べる。これは用紙カートリッジ等で供給
される定型用紙の場合は、オペレータの指定があるため
である。従って、定型用紙の場合は用紙幅の検出は省略
される。The control circuit 1 monitors whether or not the paper set in the hopper is picked, and when the paper is picked, it is checked whether it is standard paper or not. This is because in the case of standard paper supplied by a paper cartridge or the like, the operator specifies the paper. Therefore, in the case of standard paper, detection of the paper width is omitted.
制御回路１は定型用紙の場合、第３図（ｄ）の■と■の
間の時間を計数する。そして、予め判明している■と■
の間の時間と比較し小さいか否かを調べる。小さく無い
場合は用紙１２が搬送されて来ていないことを示すため
、ビックミス警報を送出する。In the case of standard paper, the control circuit 1 counts the time between ■ and ■ in FIG. 3(d). And ■ and ■ which are known in advance
Compare with the time between and check whether it is smaller. If it is not small, a big miss alarm is sent out to indicate that the paper 12 has not been conveyed.
■と■の間の時間より■と■の間の時間が小さい時、制
御回路１は■と■の間の時間を計数し、先に計数した■
と■の間の時間と比較し、等しくなければ斜行警報を送
出し、等しければ次の処理に移行する。When the time between ■ and ■ is smaller than the time between ■ and ■, the control circuit 1 counts the time between ■ and ■, and the previously counted ■
The time between and ■ is compared, and if they are not equal, a skew warning is sent, and if they are equal, the process moves to the next step.
制御回路１は定型用紙で無い場合、第３図（ｄ）の■と
■の間の時間を計数する。そして、予め判明している■
と■の間の時間と比較し小さいか否かを調べる。小さく
無い場合は用紙１２が搬送されて来ていないことを示す
ため、ピックミス警報を送出する。If the paper is not of standard size, the control circuit 1 counts the time between ■ and ■ in FIG. 3(d). And it is known in advance.
Compare with the time between and ■ to see if it is smaller. If it is not small, a pick miss alarm is sent out to indicate that the paper 12 has not been conveyed.
制御回路１は■と■の間の時間より■と■の間の時間が
小さい時、この計数値から予め定まっている用紙幅を算
出する。そして、この用紙幅に対する印字データが適当
かを判定する。即ち、印字開始位置が用紙のセットされ
ている位置に対し、適当か否かを調べ、印字幅が用紙幅
を越えていないかを調べ、不適当であれば警報を送出し
、適当と判定すると、制御回路１は■と■の間の時間を
計数し、先に計数した■と■の間の時間と比較し、等し
くなければ斜行警報を送出し、等しければ次の処理に移
行する。When the time between ■ and ■ is smaller than the time between ■ and ■, the control circuit 1 calculates a predetermined paper width from this count value. Then, it is determined whether the print data for this paper width is appropriate. In other words, it is checked whether the print start position is appropriate for the position where the paper is set, it is checked whether the print width exceeds the paper width, and if it is inappropriate, an alarm is sent out, and if it is determined to be appropriate, it is checked. The control circuit 1 counts the time between ■ and ■ and compares it with the previously counted time between ■ and ■. If they are not equal, a skew warning is sent out, and if they are equal, the process moves to the next step.
本実施例ではモータ１０を使用しているが、このモータ
１０は用紙搬送用のモータと共用することが可能であり
、レーザプリンタの場合は発光素子２の代わりにレーザ
光をファイバーケーブル等で導くことで代用出来る。In this embodiment, a motor 10 is used, but this motor 10 can also be used as a paper conveyance motor, and in the case of a laser printer, the laser light can be guided using a fiber cable or the like instead of the light emitting element 2. It can be substituted by
以上説明した如く、本発明は不定型用紙の幅や用紙の斜
行を同一の簡単な装置で検知することが出来る。As described above, the present invention can detect the width of irregular-sized paper and the skew of paper using the same simple device.
第１図は本発明の一実施例を説明する図、第２図は第１
図に示す機構部の断面図、第３図は第１図の動作原理を
説明する図、第４図は第１図の動作を説明するフローチ
ャート、第５図は従来の技術を説明する図である。
図において、
１は制御回路、 ２は発光素子、
３は受光素子、 ４は回転円板、５．６．１１は
反射鏡、 ７は穴、
８．１５はアーム、 ９はローラ、１０．２０は
モータ、 １２は用紙、１３は軌跡、 １４
は取付は台、１６、１７．２１はセンサ、 １８はスリ
ット、１９は検知板である。
＝１４−FIG. 1 is a diagram explaining one embodiment of the present invention, and FIG.
3 is a diagram explaining the principle of operation of FIG. 1, FIG. 4 is a flowchart explaining the operation of FIG. 1, and FIG. 5 is a diagram explaining the conventional technique. be. In the figure, 1 is a control circuit, 2 is a light emitting element, 3 is a light receiving element, 4 is a rotating disk, 5.6.11 is a reflector, 7 is a hole, 8.15 is an arm, 9 is a roller, 10.20 is the motor, 12 is the paper, 13 is the trajectory, 14
16, 17.21 are sensors, 18 is a slit, and 19 is a detection plate. =14-
Claims (1)
置され、該発光素子（２）が送出する光束を反射する第
１の反射鏡（５）と、 該回転円板（４）の外周側に該第１の反射鏡（５）と対
向して配置され、該第１の反射鏡（５）が反射した光束
を、該回転円板（４）の穴（７）を通して、取付け台に
固定されて対向する第３の反射鏡（１１）に送出する第
２の反射鏡（６）と、 該取付け台に固定され前記回転円板（４）を保持するア
ーム（８）と、 前記発光素子（２）を中心として、その外周に同心円を
形成する受光素子（３）とを備えて成り、該発光素子（
２）が送出する光束が第１と第２の反射鏡により、穴（
７）を通して第３の反射鏡（１１）に投射され、該第３
の反射鏡（１１）により反射された光束が、該穴（７）
を通って第２の反射鏡（６）と第１の反射鏡（５）とに
より反射され、前記受光素子（３）上に受光されるよう
に構成し、前記回転円板（４）を定速で回転させ、前記
アーム（８）により光束が遮断されることで、受光素子
（３）に得られる信号を基準とし、用紙（１２）が第３
の反射鏡（１１）上に搬送され、該光束を遮断すること
により、受光素子（３）に得られる信号との間隔を計数
することで、用紙の幅と用紙搬送時の斜行を検出するこ
とを特徴とする用紙幅及び用紙斜行検知装置。[Claims] A light emitting element (2); a first light emitting element disposed at the center of a rotating disk (4) facing the light emitting element (2) and reflecting a luminous flux sent out by the light emitting element (2); A reflecting mirror (5) is disposed on the outer peripheral side of the rotating disk (4) to face the first reflecting mirror (5), and the luminous flux reflected by the first reflecting mirror (5) is a second reflecting mirror (6) which is fixed to the mounting base and sends the light to the opposing third reflecting mirror (11) through the hole (7) of the rotary disk (4); It comprises an arm (8) that holds a rotating disk (4), and a light receiving element (3) that forms a concentric circle around the light emitting element (2) around the light emitting element (2).
2) is transmitted through the hole (
7) onto the third reflecting mirror (11);
The light beam reflected by the reflecting mirror (11) of the hole (7)
The rotating disk (4) is configured such that the light is reflected by the second reflecting mirror (6) and the first reflecting mirror (5) and received on the light receiving element (3), and the rotating disk (4) is fixed. The paper (12) is rotated at a high speed and the light beam is blocked by the arm (8), so that the paper (12) is
The width of the paper and the skew during paper transport are detected by counting the interval between the light beam and the signal obtained by the light-receiving element (3) by blocking the light beam. A paper width and paper skew detection device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3891087A JPS63208458A (en) | 1987-02-20 | 1987-02-20 | Device for detecting width and deviation of blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3891087A JPS63208458A (en) | 1987-02-20 | 1987-02-20 | Device for detecting width and deviation of blank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63208458A true JPS63208458A (en) | 1988-08-29 |
Family
ID=12538354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3891087A Pending JPS63208458A (en) | 1987-02-20 | 1987-02-20 | Device for detecting width and deviation of blank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63208458A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02117150U (en) * | 1989-03-07 | 1990-09-19 | ||
| JP2019147633A (en) * | 2018-02-26 | 2019-09-05 | コニカミノルタ株式会社 | Image formation apparatus |
| JP2020196634A (en) * | 2016-05-09 | 2020-12-10 | カシオ計算機株式会社 | Method of manufacturing structure |
-
1987
- 1987-02-20 JP JP3891087A patent/JPS63208458A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02117150U (en) * | 1989-03-07 | 1990-09-19 | ||
| JP2020196634A (en) * | 2016-05-09 | 2020-12-10 | カシオ計算機株式会社 | Method of manufacturing structure |
| JP2019147633A (en) * | 2018-02-26 | 2019-09-05 | コニカミノルタ株式会社 | Image formation apparatus |
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