JPS5916458A - Detector of end of roll sheet - Google Patents
Detector of end of roll sheetInfo
- Publication number
- JPS5916458A JPS5916458A JP57126256A JP12625682A JPS5916458A JP S5916458 A JPS5916458 A JP S5916458A JP 57126256 A JP57126256 A JP 57126256A JP 12625682 A JP12625682 A JP 12625682A JP S5916458 A JPS5916458 A JP S5916458A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- sensors
- mark
- recording paper
- detected
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00681—Detecting the presence, position or size of a sheet or correcting its position before scanning
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
- Paper Feeding For Electrophotography (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
- Facsimiles In General (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は複写機・印刷機・記録機・その他ロール状シー
ト（複写紙・印刷紙・記録紙・その他各種シート状の紙
等も含む）を装填する各種機械等（記録機等とい５）の
ロール状シートの終端検知装置に関するもので、特にロ
ール状シートの終端を確実に検知できるロール状シート
の終端検知装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention is applicable to copying machines, printing machines, recording machines, and other machines that load rolled sheets (including copying paper, printing paper, recording paper, and other various sheet-shaped papers). This invention relates to a device for detecting the end of a rolled sheet in a recording machine or the like (5), and particularly relates to a device for detecting the end of a rolled sheet that can reliably detect the end of a rolled sheet.
従来、この種の装置においてはシートの終端にマーク等
をつけておいて、それを検知したときに警告のみを行な
５もの或はマーキングのピッチを変えてセンサーで読み
とシ１その発生する周期数によシシートなしか否を検知
していた。Conventionally, in this type of device, a mark, etc. is placed at the end of the sheet, and when it is detected, a warning is issued only, or the pitch of the marking is changed, and the sensor reads it and the mark is generated. The presence or absence of a sheet was detected based on the number of cycles.
しかしながら、このような方法による終端検知はシート
が移送中でなければ検出できない欠点を有し、さらには
全く使用できるシートがなくなった状態しか検知できな
いという欠点を有するものであった。However, the end detection method using this method has the disadvantage that it cannot be detected unless the sheet is being transported, and furthermore, it has the disadvantage that it can only detect the state where there are no more usable sheets.
そこで、本発明はこれらの欠点に鑑みて改良した新規な
ロール状シートの終端検知装置を提供することを目的と
するものである。SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a novel end detection device for rolled sheets that is improved in view of these drawbacks.
本発明の別の目的はロール状シートの終端を移送中に限
らず直ちに確実に検知でき、さらには所定長さ分の残り
状態をも検知できるロール状シートの終端検知装置を提
供することである。Another object of the present invention is to provide a device for detecting the end of a rolled sheet, which can immediately and reliably detect the end of a rolled sheet, not only during transport, and can also detect the remaining state of a predetermined length. .
即ち、上記目的を達成できる本発明の主要な構端検知装
置で、該ロール状シートが搬送され２ることを検知する
第１と第２のセンサーを画像記録部の前後に配設し、該
ロール状シートの終端よシ該残シ状態をも検知するよう
にしたことを特徴としタロール状シートの終端検知装置
である。That is, in the main structure end detection device of the present invention that can achieve the above object, first and second sensors for detecting the conveyance of the rolled sheet are disposed before and after the image recording section, and the This is a terminal end detection device for a roll-like sheet, characterized in that it also detects the state of remaining paper at the end of the roll-like sheet.
以下、本発明の具体的実施例について図に従って詳細に
説明する。第１図は本発明を適用できるファクシミリ等
を示した断面図で、図において、イは紙の搬送方向と略
直角方向に着脱可能に構成された記録紙ホルダー（又は
マガジン）で紙の変換を容易にしているものである。２
はその記録紙ホルダーに内蔵して保持された記録紙であ
る。記録紙２はその搬送方向を転換するロー２３にょシ
ガイドを経てレジストローラ４１・４！に挾持されて自
動給紙が可能となっている。なお、ガイドローラ６は省
略してレジストロー２４ｇと兼用することもできる。第
２図はここまでの記録紙ホルダー２の全体を示した斜視
図である。この記録紙ホル／
／
／
７／
／
ダー２が装置内に組瓢込みセットされて、通常のファク
シミリ等として機能されることになる。Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. Figure 1 is a sectional view showing a facsimile machine, etc. to which the present invention can be applied. It's what makes it easy. 2
is the recording paper held inside the recording paper holder. The recording paper 2 passes through a roller 23 guide that changes its conveyance direction, and then passes through registration rollers 41 and 4! Automatic paper feeding is possible by being held between the two. Note that the guide roller 6 can be omitted and can also be used as the registration row 24g. FIG. 2 is a perspective view showing the entire recording paper holder 2 up to this point. This recording paper holder 2 is assembled and set in the apparatus and functions as a normal facsimile machine or the like.
次に、以後の記録紙搬送動作を簡単に説明すると、記録
紙２の先端がセンサー１００にょシ検知され１続いてサ
ーマルヘッド６をこれに押圧されるプラテンローラ５に
よシ記録搬送されて、センサー１０１に検知されて俊、
カッター７．８を経由して排紙ローラ対９・１０により
排出され、トレイ１１上に画像面を上向きにして積載さ
れる。Next, to briefly explain the subsequent recording paper conveyance operation, the leading edge of the recording paper 2 is detected by the sensor 100, and then the recording paper 2 is conveyed for recording by the platen roller 5, which presses the thermal head 6. Shun was detected by sensor 101,
The paper is discharged by a pair of paper discharge rollers 9 and 10 via a cutter 7.8, and stacked on a tray 11 with the image side facing upward.
々お、記録紙搬送のレジストタイミングについて述べる
と、イニシャルセット時の場合はロール記録紙２の先端
はレジストローラ４１・４ｚトセンサ一１０００間に位
置していれば良く、センサー１００トサーマルヘツド６
との位置関係は一定であるので、記録紙先端をセンサー
１００で検知後一定時間後に記録を開始するよう罠なっ
ている。Regarding the registration timing for transporting the recording paper, in the case of initial setting, the leading edge of the roll recording paper 2 should be located between the registration rollers 41, 4z, and the sensor 1000, and between the sensor 100 and the thermal head 6.
Since the positional relationship between the recording paper and the recording paper is constant, the sensor 100 detects the leading edge of the recording paper and starts recording after a fixed period of time.
また、イニシャルセット時でないときは通常、受信後ロ
ール状記録紙２はカッター７．８で切断されるが、その
後いつでも直ちに受信可能なようにするために、サーマ
ルヘッド乙の記録面まで戻すことができるようになって
いる。その判別方法は例えば反射型センサー１００舎１
０１を用いるとすると、センサー１００がハイ（記録紙
の存在検知）でセンサー１０１がロー（記録紙の不存在
検知）のときにはプラテン５」二にロール状記録紙２が
あることが判別され、イニシャルセット時は両センサー
１００−１０１ （！：もＪＣｏ−であることで判別
ができ、このとき、一定時間経過後にも記録紙２が出な
い場合にはジャム発生と判別できる。In addition, the roll recording paper 2 is normally cut by the cutter 7.8 after receiving it when it is not the time of initial setting, but it can be returned to the recording surface of the thermal head O in order to be able to receive it immediately afterwards. It is now possible to do so. For example, 100 reflective sensors 1
01, when the sensor 100 is high (detecting the presence of recording paper) and the sensor 101 is low (detecting the absence of recording paper), it is determined that there is a roll of recording paper 2 on the platen 5'', and the initial When set, it can be determined that both sensors 100-101 (!: are also JCo-. At this time, if the recording paper 2 does not come out after a certain period of time, it can be determined that a jam has occurred.
また、センサー１００・１０１と２個用いることにより
記録紙の残量検知も確実に行なえることができる。Further, by using two sensors 100 and 101, the remaining amount of recording paper can be detected reliably.
即ち、第６図に示すようにロール状記録シートの終端部
に終端警告マークａｓｂを設けてあり、装置のセンサー
１００・１０１の位置と記録紙移送時対応するような位
置関係にある。終端警告マークａ・ｂは反射濃度が異な
るマークであってその感度は例えば第４図に示すような
感度レベルになっている。そして終端警告マークａは例
えばＡ４残シ一枚の状態を警告するためのマークで、終
端警告マークｂは例えばＡ４残υ一枚はない状態を警告
するためのマークである。その各々のマークの長さを図
のよ５にｌｌａ Ｉｓとするとき、例え）ｆＡ４の場合
にはｌｌはセンサー１００と１０１の距離ｉｓよシも長
くし、かつ１３≦２９７（ｍｍ）（Ａ４の長手方向長さ
）としておくと、センサー１００−１０１の両方が終端
警告マークａの反射濃度を検知したときにＡ４残シ一枚
の状態を判別して警告をすることができ、さらに記録紙
２が少し前進した状態ではセンサー１０１が終端警告マ
ークａをセンサー１００が終端警告マークｂを検知すれ
ばＡ４残シ一枚はなしの状態を判別して警告することが
できる。従って、各終端の状態がより明確に把握するこ
とができるようになった。That is, as shown in FIG. 6, an end warning mark ASB is provided at the end of the rolled recording sheet, and is in a positional relationship corresponding to the positions of the sensors 100 and 101 of the apparatus when the recording paper is transported. The end warning marks a and b have different reflection densities, and their sensitivity is, for example, at a sensitivity level as shown in FIG. The end warning mark a is a mark for warning that there is, for example, one A4 sheet remaining, and the end warning mark b is a mark for warning that there is, for example, one A4 sheet remaining. Assuming that the length of each mark is lla Is in 5 as shown in the figure, for example) in the case of fA4, ll is longer than the distance is between the sensors 100 and 101, and 13≦297 (mm) (A4 (length in the longitudinal direction), when both sensors 100-101 detect the reflection density of the end warning mark a, it is possible to determine the status of one A4 sheet remaining and issue a warning. 2 is slightly advanced, the sensor 101 detects the end warning mark a, and if the sensor 100 detects the end warning mark b, it is possible to determine that there is only one A4 sheet remaining and issue a warning. Therefore, the status of each terminal can be more clearly understood.
次に、第５図及び第６図で別の例を示す。ロール状記録
紙２の終端付近に前述と同様の／ｌ＋／１マークｂｘを
センサー１０１の位置に対応して設けである。即ち、こ
の場合にはセンサー１００がａｌの反射濃度を検知し、
かつセンサー１０１が記録紙２の白の反射濃度を検知し
たときには記録紙はＡ４残ル１枚の状態を判別して警告
するし、また、センサー１０１がｂｘの反射濃度を検知
することになったときにはＡ４残シ１枚なしの状態を判
別することができることになる。この例の場合には終端
警告マークａｘ ｍ ｂｌの濃度は同じでもさしつがえ
なく記録紙の白と紙魚の状態の中間を識別できればよい
ことにある。Next, another example is shown in FIGS. 5 and 6. Near the end of the roll-shaped recording paper 2, a /l+/1 mark bx similar to that described above is provided corresponding to the position of the sensor 101. That is, in this case, the sensor 100 detects the reflection density of Al,
In addition, when the sensor 101 detects the white reflection density of the recording paper 2, it determines the status of one A4 sheet of recording paper and issues a warning, and the sensor 101 also detects the BX reflection density. In some cases, it is possible to determine whether there is only one A4 sheet left. In this example, even if the density of the end warning mark ax m bl is the same, it is sufficient to be able to distinguish between the white state of the recording paper and the state of the paper.
次に、ロール状記録紙２を記録紙ホルダー１に装着する
ためにはロール状記録紙２の側方の支持板１′を抜き差
しすることによシ行なうことができ、さらにロール状記
録紙２の先端岐例えばレジスタローラ４ｓにハンドルを
つけて回転させることによシ、所定の位置まで移送でき
る。即ち、ロール状記録紙２の先端をレジストローラ４
１・４ｓ間に挟持した後に、記録紙ホルダー１を装置に
装着すればよい。従って、記録紙２はレジストロー２４
１ｍ４３部に正確に挟持して保持させることができるの
で、無駄に送シ出すことがなくなる。とくに記録紙ホル
ダーを装置に着脱自在にして交換可能としたため例えば
各種カラーペーノク一部のもの或は長さの異なる紙等を
使用したい場合にも交換がを易に行なうことができる。Next, the rolled recording paper 2 can be mounted on the recording paper holder 1 by inserting and removing the support plate 1' on the side of the rolled recording paper 2. For example, by attaching a handle to the register roller 4s and rotating it, it can be transferred to a predetermined position. That is, the leading edge of the roll recording paper 2 is moved to the registration roller 4.
After holding the paper for 1.4 seconds, the recording paper holder 1 may be attached to the apparatus. Therefore, the recording paper 2 is
Since it can be accurately held and held between the 1m43 portions, there is no need to send it out unnecessarily. In particular, since the recording paper holder is detachably attached to the apparatus and can be replaced, it can be easily replaced, for example, when it is desired to use a portion of various color paper sheets or paper of different lengths.
以上、説明したよ５に本発明の構成によればロール状シ
ートの終端検知が確実に行なうこと力！できる。As explained above, according to the configuration of the present invention, the end of the rolled sheet can be reliably detected! can.
第１図は本発明を適用できるファクシミリの断面図、第
２図はその記録紙ホルタ一部の斜視図、第６図及び第４
図は終端警告マークの一例を示した図、第５図及び第６
図は、他の例を示した図である。
図において、ａ−ａｌφｂ・ｂｌは終端警告マーク、１
００ ＠１０１はセンサーである。
出願人 キャノン株式会社
−３３“FIG. 1 is a sectional view of a facsimile machine to which the present invention can be applied, FIG. 2 is a perspective view of a part of the recording paper holster, and FIGS.
The figure shows an example of the end warning mark, Figures 5 and 6.
The figure shows another example. In the figure, a-alφb・bl is an end warning mark, 1
00 @101 is a sensor. Applicant Canon Co., Ltd.-33“
Claims (1)
の終端を検知するロール状シートの終端検知装置におい
て、 該ロール状シートが搬送されることを検知する第１と第
２のセンサーを画像記録部の前後に配設し、該ロール状
シートの終端よシ該所定長さ手前にさらに該第１と第２
のセンサー間よシも長い擬似終端マークを設けて所定長
さ分の残り状態をも検知するようにしたことを特徴とし
たロール状シートの終端検知装置。[Scope of Claims] A roll sheet end detection device for detecting the end of a roll sheet being conveyed to be cut into a predetermined length, comprising: a first end detecting device for detecting the end of a roll sheet being conveyed to be cut into a predetermined length; A second sensor is disposed before and after the image recording section, and the first and second sensors are further disposed a predetermined length before the end of the rolled sheet.
A device for detecting the end of a rolled sheet, characterized in that a pseudo end mark is provided with a long distance between the sensors, so that the remaining state of a predetermined length can also be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57126256A JPS5916458A (en) | 1982-07-20 | 1982-07-20 | Detector of end of roll sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57126256A JPS5916458A (en) | 1982-07-20 | 1982-07-20 | Detector of end of roll sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5916458A true JPS5916458A (en) | 1984-01-27 |
Family
ID=14930670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57126256A Pending JPS5916458A (en) | 1982-07-20 | 1982-07-20 | Detector of end of roll sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5916458A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01167037A (en) * | 1987-12-23 | 1989-06-30 | Sekisui Jushi Co Ltd | Method of detecting remaining amount of band in packaging apparatus |
| JPH0263485U (en) * | 1988-10-31 | 1990-05-11 | ||
| US5601375A (en) * | 1992-05-06 | 1997-02-11 | Esselte N.V. | Automatic tape detecting and tape width identifying printing apparatus and tape holder |
| EP1179433A2 (en) * | 2000-08-08 | 2002-02-13 | Fujitsu Takamisawa Component Limited | Thermal printer unit and thermal printer |
-
1982
- 1982-07-20 JP JP57126256A patent/JPS5916458A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01167037A (en) * | 1987-12-23 | 1989-06-30 | Sekisui Jushi Co Ltd | Method of detecting remaining amount of band in packaging apparatus |
| JPH0263485U (en) * | 1988-10-31 | 1990-05-11 | ||
| US5601375A (en) * | 1992-05-06 | 1997-02-11 | Esselte N.V. | Automatic tape detecting and tape width identifying printing apparatus and tape holder |
| EP1179433A2 (en) * | 2000-08-08 | 2002-02-13 | Fujitsu Takamisawa Component Limited | Thermal printer unit and thermal printer |
| EP1179433A3 (en) * | 2000-08-08 | 2002-04-17 | Fujitsu Takamisawa Component Limited | Thermal printer unit and thermal printer |
| US6682239B2 (en) | 2000-08-08 | 2004-01-27 | Fujitsu Takamisawa Component Limited | Thermal printer unit and thermal printer |
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