JPH0920443A - Roll paper residual amount confirming device - Google Patents
Roll paper residual amount confirming deviceInfo
- Publication number
- JPH0920443A JPH0920443A JP7192666A JP19266695A JPH0920443A JP H0920443 A JPH0920443 A JP H0920443A JP 7192666 A JP7192666 A JP 7192666A JP 19266695 A JP19266695 A JP 19266695A JP H0920443 A JPH0920443 A JP H0920443A
- Authority
- JP
- Japan
- Prior art keywords
- roll paper
- paper
- optical path
- path length
- remaining amount
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、複写機やファク
シミリ装置，プリンタ装置等の記録装置に装着したロ−
ル紙の残量を検出するロ−ル紙残量確認装置に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller mounted on a recording device such as a copying machine, a facsimile device, a printer device or the like.
The present invention relates to a roll paper remaining amount confirmation device for detecting the remaining amount of roll paper.
【０００２】[0002]
【従来の技術】例えばファクシミリ装置等のように文字
や画情報を記録紙に記録する記録装置には、記録紙とし
てロ−ル紙を使用しているものが多い。このロ−ル紙を
使用した記録装置においては、装着されたロ−ル紙がな
くなると文字や画情報を記録できないため、ロ−ル紙が
なくなる以前にそれを検出する必要がある。このため、
例えば特開平５−147271号公報に開示されているよう
に、ロ−ル紙の側縁に沿って記録紙残量情報を示す残量
マ−クを付加し、この残量マ−クをイメ−ジセンサで検
出して装着した記録紙がなくなること、すなわちペ−パ
ニアエンドを検知している。2. Description of the Related Art In a recording apparatus such as a facsimile apparatus for recording characters and image information on a recording sheet, roll paper is often used as the recording sheet. In the recording apparatus using the roll paper, it is necessary to detect it before the roll paper runs out, because characters and image information cannot be recorded when the loaded roll paper runs out. For this reason,
For example, as disclosed in Japanese Patent Laid-Open No. 5-147271, a remaining mark indicating the remaining amount of recording paper is added along the side edge of the roll paper, and the remaining mark is displayed. -The recording paper which is detected by the image sensor and is mounted out of paper, that is, the paper near end is detected.
【０００３】[0003]
【発明が解決しようとする課題】上記のようにロ−ル紙
のペ−パニアエンドをロ−ル紙に付加した残量マ−クで
検出していると、全てのロ−ル紙に残量マ−クを付加す
る必要があった。また、ペ−パニアエンドに達すると残
量マ−クが付けられた記録紙に文字や画情報が記録され
てしまい、文字や画情報を記録した記録紙に余分な残量
マ−クが表示されてしまうという短所もあった。When the paper near end of the roll paper is detected by the remaining amount mark added to the roll paper as described above, the remaining amount on all the roll paper is detected. It was necessary to add a mark. Also, when the paper near end is reached, characters and image information will be recorded on the recording paper with the remaining mark, and an extra remaining mark will be displayed on the recording paper on which the characters and image information are recorded. There was also the disadvantage that it would end up.
【０００４】この発明はかかる短所を解消するためにな
されたものであり、ロ−ル紙に残量マ−クを付加せずに
ロ−ル紙の残量を検出することができるロ−ル紙残量確
認装置を得ることを目的とするものである。The present invention has been made in order to eliminate such disadvantages, and a roll capable of detecting the remaining amount of roll paper without adding a remaining mark to the roll paper. The purpose is to obtain a remaining paper amount confirmation device.
【０００５】[0005]
【課題を解決するための手段】この発明に係るロ−ル紙
残量確認装置は、発光手段と受光手段と光路長判定手段
及び残量演算手段とを有する。発光手段はロ−ル紙給紙
部に装着されたロ−ル紙に対して光を照射し、受光手段
はロ−ル紙からの反射光を受光し、光路長判定手段は受
光手段で受光した受光量とあらかじめ記憶された光路長
と受光量との関係から発光手段からロ−ル紙，受光手段
までの光路長を算出し、残量演算手段は算出した光路長
から装着されたロ−ル紙の残量を演算する。A roll paper remaining amount confirmation apparatus according to the present invention has a light emitting means, a light receiving means, an optical path length determining means and a remaining amount calculating means. The light emitting means emits light to the roll paper mounted in the roll paper feeding section, the light receiving means receives the reflected light from the roll paper, and the optical path length determining means receives the light by the light receiving means. The optical path length from the light emitting means to the roll paper and the light receiving means is calculated from the relationship between the received light quantity and the previously stored optical path length and the received light quantity, and the remaining amount calculating means is mounted from the calculated optical path length. Calculate the remaining amount of paper.
【０００６】また、上記ロ−ル紙残量確認装置に給紙長
測定手段と紙厚算出手段とを有し、給紙長測定手段はロ
−ル紙の給紙長を測定し、紙厚算出手段は光路長判定手
段で算出した光路長の変化と給紙長測定手段で測定した
給紙長から装着されたロ−ル紙の紙厚を算出し、残量演
算手段は算出した光路長と紙厚から装着されたロ−ル紙
の残量を演算すると良い。Further, the roll paper remaining amount checking device has a paper feed length measuring means and a paper thickness calculating means, and the paper feed length measuring means measures the paper feed length of the roll paper to obtain the paper thickness. The calculating means calculates the paper thickness of the loaded roll paper from the change of the optical path length calculated by the optical path length determining means and the paper feed length measured by the paper feed length measuring means, and the remaining amount calculating means calculates the calculated optical path length. It is recommended to calculate the remaining amount of the loaded roll paper from the paper thickness.
【０００７】[0007]
【発明の実施の形態】光源から出射された光束を受光面
で受光したときに受光面に入射する光束は光源から受光
面までの距離と一定の関係がある。そこで、この発明に
おいては、ロ−ル紙を使用し文字や画情報を記録する複
写機やファクシミリ装置，プリンタ装置のロ−ル紙給紙
部のロ−ル紙装着部に対して一定の位置に発光手段と受
光手段を配置する。また、複写機やファクシミリ装置，
プリンタ装置の制御部には光路長判定手段と残量演算手
段とを設け、かつ、あらかじめ光路長と受光量との関係
や使用するロ−ル紙の紙厚を記憶しておく。そしてロ−
ル紙給紙部に装着したロ−ル紙を使用して画情報等を記
録しているとき、あるいは画情報等の記録が終了したと
きに、発光手段からロ−ル紙給紙部に装着されたロ−ル
紙の表面に光を照射し、ロ−ル紙からの反射光を受光手
段で受光する。この受光した光の受光量とあらかじめ記
憶された光路長と受光量との関係からロ−ル紙に照射さ
れて反射した光の光路長を光路長判定手段で算出する。
この算出した光路長から装着されているロ−ル紙の外径
を残量演算手段で演算し、ロ−ル紙の残量を算出する。
算出した残量を制御部は表示部に表示して、ロ−ル紙の
残量をオペレ−タに明らかにする。BEST MODE FOR CARRYING OUT THE INVENTION When a light beam emitted from a light source is received by a light receiving surface, the light beam incident on the light receiving surface has a fixed relationship with the distance from the light source to the light receiving surface. In view of this, in the present invention, a fixed position is provided with respect to the roll paper mounting portion of the roll paper feeding portion of a copying machine, a facsimile device, or a printer device that uses roll paper to record characters and image information. A light emitting means and a light receiving means are arranged in the. In addition, copiers and facsimile machines,
The control unit of the printer is provided with an optical path length determination means and a remaining amount calculation means, and previously stores the relationship between the optical path length and the amount of received light and the thickness of the roll paper to be used. And ro
When recording image information, etc. using the roll paper mounted on the roll paper feed section, or when recording of image information etc. is completed, the light emitting means is mounted on the roll paper feed section. The surface of the rolled paper is irradiated with light, and the reflected light from the rolled paper is received by the light receiving means. The optical path length determination means calculates the optical path length of the light reflected on the roll paper based on the relationship between the received light amount of the received light and the optical path length and the received light amount stored in advance.
From the calculated optical path length, the remaining diameter of the roll paper attached is calculated by the remaining amount calculation means to calculate the remaining amount of the roll paper.
The control unit displays the calculated remaining amount on the display unit to clarify the remaining amount of the roll paper to the operator.
【０００８】また、ロ−ル紙の給紙長さを給紙長測定手
段で計測し、ロ−ル紙が一定長さ給紙されたときの前後
の光路長の変化から装着されたロ−ル紙の紙厚を算出
し、算出した紙厚と光路長の変化からロ−ル紙の残量を
算出し、異なる厚さのロ−ル紙を装着したときも確実に
ロ−ル紙の残量を検出する。Further, the paper feed length of the roll paper is measured by a paper feed length measuring means, and when the roll paper is fed for a fixed length, the roll length attached is determined based on the change in the optical path length before and after. Calculate the paper thickness of the roll paper, calculate the remaining amount of roll paper from the calculated paper thickness and the change in optical path length, and make sure that the roll paper Detect the remaining amount.
【０００９】[0009]
【実施例】図１はこの発明の一実施例を示す配置図であ
る。図に示すように、例えばファクシミリ装置の記録紙
を給紙するロ−ル紙給紙部のロ−ル紙装着部１にはロ−
ル紙２が装着されている。このロ−ル紙装着部１に対し
て一定の位置、例えばロ−ル紙装着部１の軸心を通る直
線を挟んだ対称の位置に発光手段３と受光手段４が設け
られている。発光手段３は、図２の制御部のブロック図
に示すように、ファクシミリ装置全体の動作を管理する
ＣＰＵ５からの制御により駆動する電源供給部６から電
力が供給され、ロ−ル紙装着部１に装着されたロ−ル紙
２の表面に光を照射する。受光手段４は例えば半導体光
センサからなり、発光手段３からロ−ル紙２に照射さ
れ、ロ−ル紙２の表面から反射した光を受光する。制御
部の受光量認識手段７は受光手段４で受光した光の受光
量のレベルを認識する。1 is a layout view showing an embodiment of the present invention. As shown in the figure, for example, the roll paper loading unit 1 of the roll paper feeding unit that feeds the recording paper of the facsimile machine has a roll.
Ru paper 2 is attached. The light emitting means 3 and the light receiving means 4 are provided at fixed positions with respect to the roll paper mounting portion 1, for example, symmetrical positions with respect to a straight line passing through the axis of the roll paper mounting portion 1. As shown in the block diagram of the control unit of FIG. 2, the light emitting unit 3 is supplied with power from the power supply unit 6 driven by the control of the CPU 5 that manages the operation of the entire facsimile apparatus, and the roll paper mounting unit 1 is supplied. The surface of the roll paper 2 mounted on the paper is irradiated with light. The light receiving means 4 comprises, for example, a semiconductor optical sensor, and receives the light emitted from the light emitting means 3 onto the roll paper 2 and reflected from the surface of the roll paper 2. The light receiving amount recognition means 7 of the control unit recognizes the level of the light receiving amount of the light received by the light receiving means 4.
【００１０】制御部の記憶手段９にはあらかじめ光路長
と受光量との関係や使用するロ−ル紙の紙厚及びペ−パ
エンドになったときのロ−ル紙の半径ｒ1が格納されて
いる。すなわち発光手段３から出射してロ−ル紙２の表
面を反射し受光手段４に入射する光の光路長はロ−ル紙
２を使用してロ−ル紙２の径が小さくなるにしたがっ
て、図１に示すように光路長Ａから光路長Ｂに変化す
る。一方、光路長と受光量との関係は、例えば図３の説
明図に示すように光源２１から角度θだけ傾いた位置に
配置された受光面２２に入射する光の照度Ｅは、光源２
１の光度をＩ、光路長をＲとすると、Ｅ＝Ｉcos2θ／Ｒ
2で表せる。そこでロ−ル紙装着部１に対する発光手段
３と受光手段４の位置関係に基づき、発光手段３からロ
−ル紙２の表面を反射し受光手段４に入射する光の光路
長の変化と受光量との関係を算出して記憶手段９に格納
しておく。The storage means 9 of the control unit stores in advance the relationship between the optical path length and the amount of received light, the paper thickness of the roll paper to be used, and the radius r 1 of the roll paper when it reaches the paper end. ing. That is, the optical path length of the light emitted from the light emitting means 3 and reflected on the surface of the roll paper 2 and incident on the light receiving means 4 becomes smaller as the diameter of the roll paper 2 becomes smaller by using the roll paper 2. , The optical path length A is changed to the optical path length B as shown in FIG. On the other hand, regarding the relationship between the optical path length and the amount of received light, for example, as shown in the explanatory view of FIG. 3, the illuminance E of the light incident on the light receiving surface 22 arranged at the position inclined by the angle θ from the light source 21 is
If the luminous intensity of 1 is I and the optical path length is R, then E = Icos 2 θ / R
It can be represented by 2 . Therefore, based on the positional relationship between the light emitting means 3 and the light receiving means 4 with respect to the roll paper mounting portion 1, the change in the optical path length of the light reflected from the light emitting means 3 on the surface of the roll paper 2 and incident on the light receiving means 4 and the light reception. The relationship with the quantity is calculated and stored in the storage means 9.
【００１１】光路長判定手段１０は受光手段４で受光し
受光量認識手段７で認識した受光量と記憶手段９に記憶
された光路長と受光量との関係から発光手段３からロ−
ル紙２，受光手段４までの光路長を算出する。残量演算
手段１１は光路長判定手段１０で算出した光路長から装
着されたロ−ル紙の残量を演算する。The optical path length determining means 10 is driven by the light emitting means 3 based on the relationship between the light receiving quantity received by the light receiving means 4 and recognized by the light receiving quantity recognizing means 7 and the optical path length and the light receiving quantity stored in the storage means 9.
The optical path length to the paper 2 and the light receiving means 4 is calculated. The remaining amount calculation means 11 calculates the remaining amount of the loaded roll paper from the optical path length calculated by the optical path length determination means 10.
【００１２】上記のように構成されたロ−ル紙残量確認
装置の動作を図４のフロ−チャ−トを参照して説明す
る。The operation of the roll paper remaining amount checking device constructed as described above will be described with reference to the flow chart of FIG.
【００１３】ロ−ル紙装着部１に装着したロ−ル紙２を
使用して画情報等を記録しているときに、ＣＰＵ５は電
源供給部６を駆動して発光手段３を点灯する（ステップ
Ｓ１）。発光手段３から出射された光の一部は、図１に
示すようにロ−ル紙２の表面で反射して受光手段４に入
射する。この受光手段４に入射した光の受光量のレベル
を受光量認識手段７で確認して光路長判定手段１０に送
る（ステップＳ２）。光路長判定手段１０は送られた受
光量のレベルと記憶手段９に記憶された光路長と受光量
との関係から発光手段３からロ−ル紙２，受光手段４ま
での光路長Ａを算出する（ステップＳ３）。算出した光
路長Ａは残量演算手段１１に送られる。残量演算手段１
１は送られた光路長Ａとロ−ル紙装着部１に対する発光
手段３と受光手段４の位置関係に基づき、そのときロ−
ル紙装着部１に装着されているロ−ル紙２の半径ｒを算
出し、算出したロ−ル紙２の半径ｒとあらかじめ設定さ
れているペ−パエンドのときのロ−ル紙２の半径ｒ1と
の差及びロ−ル紙２の紙厚とからロ−ル紙２の残量を演
算する（ステップＳ４）。そしてそのときのロ−ル紙２
の残量がペ−パエンドレベルに達していないときは、そ
のときの残量を操作表示部８に表示する（ステップＳ
５，Ｓ６）。オペレ−タはこの残量の表示により使用中
のロ−ル紙２の残量を直ちに確認することができる。While recording image information and the like using the roll paper 2 mounted on the roll paper mounting unit 1, the CPU 5 drives the power supply unit 6 to turn on the light emitting means 3 ( Step S1). A part of the light emitted from the light emitting means 3 is reflected by the surface of the roll paper 2 and enters the light receiving means 4 as shown in FIG. The level of the amount of light received by the light receiving means 4 is confirmed by the received light amount recognition means 7 and sent to the optical path length determination means 10 (step S2). The optical path length determining means 10 calculates the optical path length A from the light emitting means 3 to the roll paper 2 and the light receiving means 4 from the relationship between the level of the received light amount sent and the optical path length and the light receiving amount stored in the storage means 9. Yes (step S3). The calculated optical path length A is sent to the remaining amount calculation means 11. Remaining amount calculation means 1
1 is based on the sent optical path length A and the positional relationship of the light emitting means 3 and the light receiving means 4 with respect to the roll paper mounting portion 1, and at that time,
The radius r of the roll paper 2 mounted on the roll paper mounting unit 1 is calculated, and the calculated radius r of the roll paper 2 and the roll paper 2 at the preset paper end are calculated. Sa及virosomes with radius r 1 - and a sheet thickness of roll paper 2 b - calculating the remaining amount of the roll paper 2 (step S4). And roll paper 2 at that time
When the remaining amount of No. has not reached the paper end level, the remaining amount at that time is displayed on the operation display unit 8 (step S
5, S6). The operator can immediately confirm the remaining amount of the roll paper 2 in use by displaying the remaining amount.
【００１４】この残量検知を画情報等を記録していると
き逐次繰返して行い、発光手段３からロ−ル紙２，受光
手段４までの光路長が図１のＢのようになり、ロ−ル紙
２の残量がペ−パエンドレベルに達したら、ペ−パエン
ドを操作表示部８に表示する（ステップＳ５，Ｓ７）。
オペレ−タはこの表示を確認することにより、ロ−ル紙
２がペ−パニアエンドに達したことを知ることができ
る。This remaining amount detection is successively repeated while recording image information and the like, and the optical path length from the light emitting means 3 to the roll paper 2 and the light receiving means 4 becomes as shown in B of FIG. When the remaining amount of the roll paper 2 reaches the paper end level, the paper end is displayed on the operation display unit 8 (steps S5 and S7).
By confirming this display, the operator can know that the roll paper 2 has reached the paper end.
【００１５】なお、上記実施例は画情報等を記録してい
るときにロ−ル紙２の残量を検出した場合について説明
したが、画情報等の記録が終了したときにロ−ル紙２の
残量を検出して表示しておくようにしても良い。In the above embodiment, the case where the remaining amount of the roll paper 2 is detected while recording the image information or the like has been described, but when the recording of the image information or the like is completed, the roll paper 2 is detected. The remaining amount of 2 may be detected and displayed.
【００１６】また、上記実施例は同じ紙厚のロ−ル紙２
をロ−ル紙装着部１に装着した場合について説明した
が、紙厚が異なるロ−ル紙２をロ−ル紙装着部１に装着
するような場合には、図５のブロック図に示すように、
ロ−ル紙２の給紙長さを計測する給紙長測定手段１３
と、ロ−ル紙が一定長さ給紙されたときの前後の光路長
の変化から装着されたロ−ル紙の紙厚を算出する紙厚算
出手段１４を設け、装着したロ−ル紙２の紙厚を検出す
ることにより、上記と同様にロ−ル紙２の残量を検出す
ることができる。In the above embodiment, the roll paper 2 having the same paper thickness is used.
The case where the roll paper 2 is mounted on the roll paper mounting portion 1 has been described. However, when the roll paper 2 having different paper thickness is mounted on the roll paper mounting portion 1, it is shown in the block diagram of FIG. like,
Paper feed length measuring means 13 for measuring the paper feed length of the roll paper 2.
And a paper thickness calculation means 14 for calculating the paper thickness of the loaded roll paper from the change in the optical path length before and after the roll paper is fed for a fixed length. By detecting the paper thickness of No. 2, the remaining amount of the roll paper 2 can be detected as in the above.
【００１７】このように装着したロ−ル紙２の紙厚を検
出して残量を検出する場合の動作を図６のフロ−チャ−
トを参照して説明する。The operation of detecting the remaining amount by detecting the paper thickness of the roll paper 2 thus mounted is shown in the flow chart of FIG.
This will be described with reference to FIG.
【００１８】ロ−ル紙を交換して新しいロ−ル紙２に記
録を開始すると、ＣＰＵ５は電源供給部６を駆動して発
光手段３を点灯する（ステップＳ１１）。発光手段３か
ら出射されロ−ル紙２の表面で反射して受光手段４に入
射した光の受光量のレベルを受光量認識手段７で確認し
て光路長判定手段１０に送る（ステップＳ１２）。光路
長判定手段１０は送られた受光量のレベルと記憶手段９
に記憶された光路長と受光量との関係から、そのときの
発光手段３からロ−ル紙２，受光手段４までの光路長Ｘ
を算出する（ステップＳ１３）。算出した光路長Ｘは記
憶手段９に格納される。また、ＣＰＵ５は発光手段３を
点灯すると同じに給紙長測定手段１３で給紙されている
ロ−ル紙２の給紙長を計測させる。そして給紙長測定手
段１３で計測している給紙長があらかじめ定めた一定長
さＬに達すると、ＣＰＵ５はそのときの受光手段４の受
光量のレベルから光路長判定手段１０で算出した光路長
Ｙと給紙長の計測開始時に算出した光路長Ｘを紙厚算出
手段１４に送る（ステップＳ１４，Ｓ１５，Ｓ１６）。
紙厚算出手段１４は送られた光路長Ｘ，Ｙとロ−ル紙装
着部１に対する発光手段３と受光手段４の位置関係に基
づき一定長さＬを給紙したときのロ−ル紙２の巻厚の変
化を演算し、演算した巻厚の変化と給紙長の一定長さＬ
から装着されているロ−ル紙２の紙厚を算出し記憶手段
９に記憶させる（ステップＳ１７）。When the roll paper is exchanged and recording is started on the new roll paper 2, the CPU 5 drives the power supply unit 6 to turn on the light emitting means 3 (step S11). The level of the received light of the light emitted from the light emitting means 3 and reflected on the surface of the roll paper 2 and incident on the light receiving means 4 is confirmed by the received light amount recognizing means 7 and sent to the optical path length determining means 10 (step S12). . The optical path length determination means 10 stores the level of the received light amount and the storage means 9.
From the relationship between the optical path length and the amount of light received stored in the optical path length X from the light emitting means 3 to the roll paper 2 and the light receiving means 4 at that time.
Is calculated (step S13). The calculated optical path length X is stored in the storage means 9. Further, the CPU 5 causes the paper feed length measuring means 13 to measure the paper feed length of the roll paper 2 which is being fed, in the same manner as turning on the light emitting means 3. When the paper feed length measured by the paper feed length measuring means 13 reaches a predetermined fixed length L, the CPU 5 calculates the optical path by the optical path length judging means 10 from the level of the amount of light received by the light receiving means 4 at that time. The length Y and the optical path length X calculated at the start of the measurement of the paper feed length are sent to the paper thickness calculating means 14 (steps S14, S15, S16).
The paper thickness calculation means 14 is based on the positional relationship between the optical path lengths X and Y sent and the light emitting means 3 and the light receiving means 4 with respect to the roll paper mounting portion 1, and the roll paper 2 when a fixed length L is fed. Calculate the change in the roll thickness and calculate the change in roll thickness and the constant length L of the paper feed length.
The paper thickness of the roll paper 2 mounted from is calculated and stored in the storage means 9 (step S17).
【００１９】一方、残量演算手段１１は光路長判定手段
１０で算出した光路長Ｙに基づき、そのときロ−ル紙装
着部１に装着されているロ−ル紙２の半径を算出し、算
出したロ−ル紙２の半径とあらかじめ設定されているペ
−パエンドのときのロ−ル紙２の半径との差及び記憶手
段９に記憶したロ−ル紙２の紙厚からロ−ル紙２の残量
を演算する（ステップＳ１８）。そしてそのときのロ−
ル紙２の残量がペ−パエンドレベルに達していないとき
は、そのときの残量を操作表示部８に表示する（ステッ
プＳ１９，Ｓ２０）。以後、ロ−ル紙を給紙していると
きに引き続きロ−ル紙２の残量検知を繰り返す（ステッ
プＳ２１，Ｓ２２，Ｓ１８）。この残量検知を画情報等
を記録しているとき逐次繰返して行い、ロ−ル紙２の残
量がペ−パエンドレベルに達したら、ペ−パエンドを操
作表示部８に表示する（ステップＳ１９，Ｓ２３）。On the other hand, the remaining amount calculating means 11 calculates the radius of the roll paper 2 mounted on the roll paper mounting portion 1 at that time based on the optical path length Y calculated by the optical path length determining means 10. The roll is calculated from the difference between the calculated radius of the roll paper 2 and the radius of the roll paper 2 at the preset paper end and the paper thickness of the roll paper 2 stored in the storage means 9. The remaining amount of the paper 2 is calculated (step S18). And at that time
When the remaining amount of the roll paper 2 has not reached the paper end level, the remaining amount at that time is displayed on the operation display unit 8 (steps S19 and S20). After that, the remaining amount of the roll paper 2 is continuously detected while the roll paper is being fed (steps S21, S22, S18). This remaining amount detection is sequentially repeated while recording image information and the like, and when the remaining amount of the roll paper 2 reaches the paper end level, the paper end is displayed on the operation display unit 8 (step S19, S23).
【００２０】[0020]
【発明の効果】この発明は以上説明したように、ロ−ル
紙給紙部のロ−ル紙装着部に対して一定の位置に発光手
段と受光手段を配置し、発光手段からロ−ル紙給紙部に
装着されたロ−ル紙の表面に光を照射し、ロ−ル紙から
の反射光を受光手段で受光し、受光した光の受光量とあ
らかじめ記憶された光路長と受光量との関係からロ−ル
紙に照射されて反射した光の光路長を算出し、算出した
光路長から装着されているロ−ル紙の径を演算してロ−
ル紙の残量を算出するようにしたから、使用中のロ−ル
紙の残量を簡単に確認することができる。また、ロ−ル
紙にペ−パニアエンドを検知するための残量マ−クを付
加する必要がないから、ペ−パニアエンドに達しても余
分な残量マ−クのない文書や画情報を出力することがで
きる。As described above, according to the present invention, the light emitting means and the light receiving means are arranged at a fixed position with respect to the roll paper mounting portion of the roll paper feeding portion, and the light emitting means rolls. The surface of the roll paper mounted in the paper feeding section is irradiated with light, and the light reflected from the roll paper is received by the light receiving means. The amount of received light and the optical path length and pre-stored optical path are received. The optical path length of the light reflected on the roll paper is calculated from the relationship with the quantity, and the diameter of the roll paper attached is calculated from the calculated optical path length to calculate the roll length.
Since the remaining amount of roll paper is calculated, the remaining amount of roll paper in use can be easily confirmed. Also, since it is not necessary to add a remaining mark to the roll paper to detect the paper near end, even if the paper near the end of the paper is reached, documents and image information without extra remaining marks are output. can do.
【００２１】また、ロ−ル紙の給紙長さを計測し、ロ−
ル紙が一定長さ給紙されたときの前後の光路長の変化か
ら装着されたロ−ル紙の紙厚を算出し、算出した紙厚と
光路長の変化からロ−ル紙の残量を算出することによ
り、異なる厚さのロ−ル紙が装着されたときでも確実に
ロ−ル紙の残量を検出することができる。Further, the feeding length of the roll paper is measured, and the roll paper is rolled.
The thickness of the loaded roll paper is calculated from the change in the optical path length before and after the roll paper is fed for a certain length, and the remaining amount of roll paper is calculated from the calculated paper thickness and the change in the optical path length. By calculating, it is possible to reliably detect the remaining amount of roll paper even when roll papers of different thicknesses are mounted.
【図１】この発明の実施例を示す配置図である。FIG. 1 is a layout view showing an embodiment of the present invention.
【図２】上記実施例の制御部の構成を示すブロック図で
ある。FIG. 2 is a block diagram showing a configuration of a control unit of the embodiment.
【図３】光路長と受光量との関係を示す説明図である。FIG. 3 is an explanatory diagram showing a relationship between an optical path length and an amount of received light.
【図４】上記実施例の動作を示すフロ−チャ−トであ
る。FIG. 4 is a flowchart showing the operation of the embodiment.
【図５】他の実施例の制御部の構成を示すブロック図で
ある。FIG. 5 is a block diagram showing a configuration of a control unit of another embodiment.
【図６】他の実施例の動作を示すフロ−チャ−トであ
る。FIG. 6 is a flowchart showing the operation of another embodiment.
１ ロ−ル紙装着部 ２ ロ−ル紙 ３ 発光手段 ４ 受光手段 ５ ＣＰＵ ７ 受光量認識手段 ９ 記憶手段 １０ 光路長判定手段 １１ 残量演算手段 １３ 給紙長測定手段 １４ 紙厚算出手段 1 Roll Paper Mounting Unit 2 Roll Paper 3 Light Emitting Means 4 Light Receiving Means 5 CPU 7 Light Received Amount Recognition Means 9 Storage Means 10 Optical Path Length Judging Means 11 Remaining Amount Calculating Means 13 Paper Feed Length Measuring Means 14 Paper Thickness Calculating Means
Claims (2)
び残量演算手段とを有し、発光手段はロ−ル紙給紙部に
装着されたロ−ル紙に対して光を照射し、受光手段はロ
−ル紙からの反射光を受光し、光路長判定手段は受光手
段で受光した受光量とあらかじめ記憶された光路長と受
光量との関係から発光手段からロ−ル紙，受光手段まで
の光路長を算出し、残量演算手段は算出した光路長から
装着されたロ−ル紙の残量を演算することを特徴とする
ロ−ル紙残量確認装置。1. A light emitting means, a light receiving means, an optical path length determining means, and a remaining amount calculating means are provided, and the light emitting means irradiates the roll paper mounted in the roll paper feeding section with light. , The light receiving means receives the reflected light from the roll paper, and the optical path length determining means determines the amount of light received by the light receiving means and the relationship between the optical path length and the amount of light stored in advance, from the light emitting means to the roll paper, An apparatus for confirming the remaining amount of roll paper, wherein the optical path length to the light receiving means is calculated, and the remaining amount calculation means calculates the remaining amount of the loaded roll paper from the calculated optical path length.
し、給紙長測定手段はロ−ル紙の給紙長を測定し、紙厚
算出手段は光路長判定手段で算出した光路長の変化と給
紙長測定手段で測定した給紙長から装着されたロ−ル紙
の紙厚を算出し、残量演算手段は算出した光路長と紙厚
から装着されたロ−ル紙の残量を演算する請求項１記載
のロ−ル紙残量確認装置。2. A paper feed length measuring means and a paper thickness calculating means are provided, the paper feeding length measuring means measures the paper feeding length of roll paper, and the paper thickness calculating means is calculated by an optical path length judging means. The paper thickness of the loaded roll paper is calculated from the change in the optical path length and the paper feed length measured by the paper feed length measuring means, and the remaining amount calculation means is mounted from the calculated optical path length and paper thickness. The roll paper remaining amount confirmation device according to claim 1, wherein the remaining amount of paper is calculated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7192666A JPH0920443A (en) | 1995-07-06 | 1995-07-06 | Roll paper residual amount confirming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7192666A JPH0920443A (en) | 1995-07-06 | 1995-07-06 | Roll paper residual amount confirming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0920443A true JPH0920443A (en) | 1997-01-21 |
Family
ID=16295030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7192666A Pending JPH0920443A (en) | 1995-07-06 | 1995-07-06 | Roll paper residual amount confirming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0920443A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012056641A (en) * | 2010-09-03 | 2012-03-22 | Toshiba Tec Corp | Roll paper detecting device, roll paper detecting method, and printer |
| KR20170108969A (en) * | 2015-01-30 | 2017-09-27 | 킴벌리-클라크 월드와이드, 인크. | Method and system for determining usage and authentication of a paper product in a dispenser |
| KR20200007028A (en) * | 2017-07-28 | 2020-01-21 | 휴렛-팩커드 디벨롭먼트 컴퍼니, 엘.피. | Determining the Length of Web Media |
| CN111671348A (en) * | 2020-05-13 | 2020-09-18 | 北京小趣智品科技有限公司 | Paper data processing method and system |
-
1995
- 1995-07-06 JP JP7192666A patent/JPH0920443A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012056641A (en) * | 2010-09-03 | 2012-03-22 | Toshiba Tec Corp | Roll paper detecting device, roll paper detecting method, and printer |
| CN102407692A (en) * | 2010-09-03 | 2012-04-11 | 东芝泰格有限公司 | Paper roll detection apparatus and method, and printer |
| KR20170108969A (en) * | 2015-01-30 | 2017-09-27 | 킴벌리-클라크 월드와이드, 인크. | Method and system for determining usage and authentication of a paper product in a dispenser |
| KR20200007028A (en) * | 2017-07-28 | 2020-01-21 | 휴렛-팩커드 디벨롭먼트 컴퍼니, 엘.피. | Determining the Length of Web Media |
| CN110753624A (en) * | 2017-07-28 | 2020-02-04 | 惠普发展公司，有限责任合伙企业 | Determination of the length of a web medium |
| US11020993B2 (en) | 2017-07-28 | 2021-06-01 | Hewlett-Packard Development Company, L.P. | Determinations of lengths of web medias |
| CN110753624B (en) * | 2017-07-28 | 2021-09-24 | 惠普发展公司，有限责任合伙企业 | Determination of the length of a web medium |
| CN111671348A (en) * | 2020-05-13 | 2020-09-18 | 北京小趣智品科技有限公司 | Paper data processing method and system |
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