JPS6318384A - Plate recorder - Google Patents
Plate recorderInfo
- Publication number
- JPS6318384A JPS6318384A JP61162814A JP16281486A JPS6318384A JP S6318384 A JPS6318384 A JP S6318384A JP 61162814 A JP61162814 A JP 61162814A JP 16281486 A JP16281486 A JP 16281486A JP S6318384 A JPS6318384 A JP S6318384A
- Authority
- JP
- Japan
- Prior art keywords
- recording medium
- electrode
- erasing
- recording
- voltage
- 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.)
- Granted
Links
- 239000000126 substance Substances 0.000 claims description 7
- 238000000151 deposition Methods 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 21
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000004040 coloring Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
Landscapes
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
- Combination Of More Than One Step In Electrophotography (AREA)
- Facsimiles In General (AREA)
- Fax Reproducing Arrangements (AREA)
- Drawing Aids And Blackboards (AREA)
- Electrophotography Using Other Than Carlson'S Method (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は原稿等の画像を黒板状の面に表示可能な板書記
録装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a board recording device capable of displaying an image of a manuscript or the like on a blackboard-like surface.
（従来の技術）
従来、この種の板書記録装置としては、次に示すような
ものが提案されている。これは、ｇＳ６図に示すように
、１対のローラ１００，１０１間に無端ベルト状の記録
媒体１０２を巻回すると共に、一方のローラ１０１と対
向する位置に画像形成７段１０３を設けである。この画
像形成手段１０３は、特公昭５１−４６７０７号公報等
に開示されており、記録電極１０４に画像情報に対応し
た電圧を記録制御部１０５より印加し、記録媒体１０２
表面にトナーを付着させて画像を形成するものである。(Prior Art) Conventionally, as this type of board recording device, the following have been proposed. As shown in Fig. gS6, an endless belt-shaped recording medium 102 is wound between a pair of rollers 100 and 101, and seven image forming stages 103 are provided at a position facing one of the rollers 101. . This image forming means 103 is disclosed in Japanese Patent Publication No. 51-46707, etc., and applies a voltage corresponding to image information to the recording electrode 104 from the recording control section 105, and
An image is formed by attaching toner to the surface.
この画像が形成された記録媒体１０２を表示部１０６ま
で移動させて表示した後、該記録媒体１０２上に付着し
たトナー１０７をクリーニング手段１０８により摺擦し
て消去し、再び次の表示に備える。After the recording medium 102 on which this image has been formed is moved to the display section 106 and displayed, the toner 107 adhering to the recording medium 102 is rubbed and erased by the cleaning means 108, and the image is prepared again for the next display.
（発明が解決しようとする問題点）
しかし、斯かる従来技術の場合には、次のような問題点
を有している。すなわち、画像の記録プロセスは、第７
図（イ）に示すように、記録電極１０４にプラスの所定
電圧を印加すると共に、記録媒体１０２の導電層１０９
を接地し、プラスに帯電したトナー１０７を静電気力に
よって記録媒体の絶縁層１１０表面に付着させ、画像を
形成する。この絶縁層１１０の表面に付着したトナー１
０７は、クリーニング手段１０８によって摺擦されて落
とされるが、誘電体からなる絶縁層１１０の電気抵抗が
高かったり時定数が大きいと、トナー１０７の電荷はリ
ークされることなく絶縁層１１０中に残留して残留電荷
１１１となる（第７図（ａ） ） 、この状態で再び現
像すると。(Problems to be Solved by the Invention) However, such prior art has the following problems. That is, the image recording process
As shown in FIG.
is grounded, and the positively charged toner 107 is caused to adhere to the surface of the insulating layer 110 of the recording medium by electrostatic force, thereby forming an image. Toner 1 attached to the surface of this insulating layer 110
07 is rubbed and removed by the cleaning means 108, but if the electrical resistance of the insulating layer 110 made of a dielectric material is high or the time constant is large, the charge of the toner 107 remains in the insulating layer 110 without being leaked. When the residual charge becomes 111 (FIG. 7(a)), development is performed again in this state.
第７図（ハ）に示すように、新たに現像され付着したト
ナー１０７の他に、絶縁層１１０中の残留電荷１１１に
よってトナーにマイナスの電荷が誘起され、トナー１０
７付着が生じ、記録媒体１０２上の画像が汚れるという
問題点があった。As shown in FIG. 7(c), in addition to the newly developed and attached toner 107, a negative charge is induced in the toner by the residual charge 111 in the insulating layer 110, and the toner 107
7 adhesion occurs, and the image on the recording medium 102 becomes smudged.
そこで、この問題点を解決するために、絶縁層１１０の
電気抵抗を低下させることが考えられるが、絶縁層１１
’Ｏの抵抗が低いとトナー１０７の電荷がリークしてト
ナー１０７が記録媒体１０２に付着しにくくなり１画像
濃度が薄くなるという問題点が新たに生じる。Therefore, in order to solve this problem, it is possible to reduce the electrical resistance of the insulating layer 110.
If the resistance of 'O is low, the electric charge of the toner 107 will leak, making it difficult for the toner 107 to adhere to the recording medium 102, resulting in a new problem that the density of one image will be reduced.
本発明は、上記従来技術の問題点を解決するためになさ
れたもので、その目的とするところは、画像濃度が薄く
なることなく、画像の消去時には記録媒体に電荷を残す
ことなく画像を消去でき、鮮明な画像が得られる板書記
録装置を提供することにある。The present invention was made in order to solve the problems of the prior art described above, and its purpose is to erase an image without reducing the image density and without leaving any charge on the recording medium when erasing the image. To provide a board recording device capable of producing clear images.
（問題点を解決するための手段）
本発明は、上記の目的を達成するために、裏面側に導電
層を有する無端ベルト状の記録媒体と、前記記録媒体の
導電層と表面に着色物質が連続して供給される電極との
間に画像信号に対応した電圧を印加し、記録媒体上に着
色物質を付着させて画像を形成する手段と、前記記録媒
体を表示部にて面状にかつ移動可（１６に支持する手段
と、前記記録媒体上に付着した着色物質を消去する手段
とを有する板書記録装置において、前記消去手段に記録
媒体と対向する電極を設け、該７［８ｉに前記記録電極
へ印加される信号電圧と逆極性の電圧を印加するように
構成されている。(Means for Solving the Problems) In order to achieve the above object, the present invention provides an endless belt-shaped recording medium having a conductive layer on the back side, and a colored substance on the conductive layer and the surface of the recording medium. means for forming an image by applying a voltage corresponding to an image signal between continuously supplied electrodes and depositing a colored substance on a recording medium; In a board recording device having a movable means for supporting the recording medium (16) and a means for erasing the colored substance adhering to the recording medium, the erasing means is provided with an electrode facing the recording medium; It is configured to apply a voltage of opposite polarity to the signal voltage applied to the recording electrode.
（作 用）
本発明においては、消去部材の電極に記録電極へ印加さ
れる信号電圧と逆極性の電圧を印加することにより、記
録媒体の表面に残留した電荷を消去する。(Function) In the present invention, the charge remaining on the surface of the recording medium is erased by applying a voltage of opposite polarity to the signal voltage applied to the recording electrode to the electrode of the erasing member.
（実 施 例） 以下に本発明を図示の実施例に基づいて説明する。(Example) The present invention will be explained below based on illustrated embodiments.
第１図は本発明に係る板書記録装置の一実施例を示すも
のである。１は無端ベルト状に形成された記録媒体で、
上下に対向配置された１対のローラ２，３に掛回されて
おり、該記録媒体１は１表示部４においてローラ２，３
により平面状にかつ移動可ｔＦに支持されている。この
記録媒体ｌは、画像形成時に矢印方向に駆動される。上
記記録媒体１の循環路の最下方の位置、すなわちローラ
３と対向する位置には、該記録媒体１に着色物質として
のトナー９を画像情報にしたがって付着させ、画像を形
成する手段６が配設されている。FIG. 1 shows an embodiment of a board recording device according to the present invention. 1 is a recording medium formed in the shape of an endless belt,
The recording medium 1 is wound around a pair of rollers 2 and 3 that are arranged vertically opposite each other, and the recording medium 1 is wrapped around a pair of rollers 2 and 3 that are arranged vertically opposite each other.
It is supported planarly and movably by tF. This recording medium 1 is driven in the direction of the arrow during image formation. A means 6 for forming an image by depositing toner 9 as a coloring substance on the recording medium 1 according to image information is disposed at the lowest position of the circulation path of the recording medium 1, that is, at a position facing the roller 3. It is set up.
図中、５はトナー９を収容したトナー容器である。In the figure, 5 is a toner container containing toner 9.
上記画像形成手段６は、特公昭５１−４６７０７号公報
等で知られる所謂マグネスタイラスと呼ばれる方式を採
用している。すなわち、その原理は、第２図に示すよう
に、非磁性円筒７内で円柱状の磁石８を回転させ、該非
磁性円筒７上を黒色等に着色された導電性磁性トナー９
を搬送して、非磁性円筒７上に軸方向に沿って密に配列
された磁性体製の針状記録電極１０上を通過させる。し
かして、表面側の絶縁層１１と裏面側の導電層１２とか
らなる記録媒体１の導電層１２と、記録電極１０間に画
像情報にしたがって電圧を印加し、電圧が印加された部
分のみ記録媒体ｌにトナー９を付着させて画像を形成す
るものである。The image forming means 6 employs a so-called magnetic stylus system known from Japanese Patent Publication No. 51-46707 and the like. That is, as shown in FIG. 2, the principle is that a cylindrical magnet 8 is rotated within a non-magnetic cylinder 7, and conductive magnetic toner 9 colored black or the like is spread over the non-magnetic cylinder 7.
is conveyed to pass over needle-shaped recording electrodes 10 made of magnetic material that are densely arranged along the axial direction on the non-magnetic cylinder 7. Thus, a voltage is applied between the recording electrode 10 and the conductive layer 12 of the recording medium 1, which is composed of the insulating layer 11 on the front side and the conductive layer 12 on the back side, and only the portion to which the voltage is applied is recorded. An image is formed by attaching toner 9 to a medium 1.
表示すべき画像情報は、記録制御部１３によって記録電
極１０に電気信号として印加される。Image information to be displayed is applied as an electrical signal to the recording electrode 10 by the recording control section 13.
上記記録媒体１の裏面には、記録媒体１の表面に付着し
たトナー９を除去する消去手段１４が設けられている。An erasing means 14 for removing toner 9 adhering to the surface of the recording medium 1 is provided on the back surface of the recording medium 1 .
この消去手段１４は、棒状の永久磁石１５，１５．１５
を備えており、該水久磁石１５．１５．１５の記録媒体
１側の端部には、平板状の電極１６が設けられている。This erasing means 14 consists of rod-shaped permanent magnets 15, 15.15.
A flat electrode 16 is provided at the end of the hydraulic magnet 15.15.15 on the recording medium 1 side.
この電極１６と記録媒体１間の距離は、５０ＪＬｍ〜５
ＩＩ１１、より好ましくは２００ｐｍ〜３ｍｍであり、
該電極１６には、記録電極１０と逆極性の電圧が印加さ
れている。The distance between this electrode 16 and the recording medium 1 is 50 JLm to 5
II11, more preferably 200 pm to 3 mm,
A voltage of opposite polarity to that of the recording electrode 10 is applied to the electrode 16 .
なお、図中、２０は記録媒体ｌの支持層、３０は装置本
体である。In the figure, 20 is the support layer of the recording medium I, and 30 is the main body of the apparatus.
以上の構成において、本実施例に係る板書記録装置では
、次のようにして画像の表示及び加筆等が行なわれる。In the above configuration, in the board recording apparatus according to this embodiment, image display, addition, etc. are performed in the following manner.
すなわち、記録媒体ｌを所定の速度で移動させつつ、記
録電極ｌＯと記録媒体１の導電層１２の間に画像情報に
対応した＋３０〜＋２００Ｖの電圧を引加し、誘電層１
１にマイナスの電荷を誘導して記録媒体１の表面に第３
図（イ）に示すようにトナー９を付着させ画像を表示す
る０次に、記録媒体１上に形成された画像を消去するに
は、トナー９が付着した記録媒体１を消去手段１４を通
過させることにより、消去手段１４の電極１６の表面に
形成されたトナーブラシ１７によって、記録媒体１表面
に付着したトナー９を摺擦して落とす、これと同時に、
消去手段１４の電極１６に、記録電極１０の電圧と逆極
性の電圧Ｖ’、−Ｚｏｏ≦Ｖ’＜ＯＶ、より好マシくは
一３０≦Ｖ′≦−５ｖが印加される。こうすることによ
って、第３図（０）に示すように、消去手段１４の電極
１６上のトナーがマイナスに帯電するとともに、誘電層
１１にはプラスの電荷が誘起される。この結果、記録媒
体１の誘電層１１内においては、現像時に誘起されたマ
イナスの電荷と消去時に誘起されたプラスの電荷が中和
し、消去後には、第３図（ハ）に示すように、誘電層１
１には電荷が残留していないため２次の現像時には、第
３図し）に示すように、新たな現像によるトナー９の付
着のみが行なわれ、余分なトナーが付着して画像が汚れ
るということがなく、鮮明な画像が得られる。That is, while moving the recording medium 1 at a predetermined speed, a voltage of +30 to +200 V corresponding to image information is applied between the recording electrode 10 and the conductive layer 12 of the recording medium 1, and the dielectric layer 1
1 to induce a negative charge on the surface of the recording medium 1.
Next, to erase the image formed on the recording medium 1, the recording medium 1 to which the toner 9 has adhered is passed through the erasing means 14. By doing so, the toner brush 17 formed on the surface of the electrode 16 of the erasing means 14 rubs and removes the toner 9 adhering to the surface of the recording medium 1. At the same time,
A voltage V' having a polarity opposite to that of the recording electrode 10, -Zoo≦V'<OV, more preferably -30≦V'≦-5V, is applied to the electrode 16 of the erasing means 14. As a result, as shown in FIG. 3(0), the toner on the electrode 16 of the erasing means 14 is negatively charged, and a positive charge is induced in the dielectric layer 11. As a result, in the dielectric layer 11 of the recording medium 1, the negative charges induced during development and the positive charges induced during erasing are neutralized, and after erasing, as shown in FIG. , dielectric layer 1
Since there is no charge remaining in 1, at the time of secondary development, only the adhesion of toner 9 due to new development is performed, as shown in Figure 3), and the excess toner adheres and smudges the image. Clear images can be obtained without any problems.
第４図は記録電極に印加する電圧と消去手段の電極に印
加する電圧による記録媒体の消去特性を示したグラフで
ある０図中、領域Ａは記録媒体上のトナー及び残留電荷
を消去可能な範囲であり、領域Ｂはさらに好ましい範囲
を示す、また、領域Ｃは消去手段においてトナーが逆極
性に帯電し。Figure 4 is a graph showing the erasing characteristics of the recording medium depending on the voltage applied to the recording electrode and the voltage applied to the electrode of the erasing means. Region B is a more preferable range, and Region C is where the toner is charged to the opposite polarity in the erasing means.
記録媒体にトナーが付着して記録媒体が汚れる範囲を示
している。さらに、領域りは消去時の電圧印加が不十分
なために生じる消去不良の範囲を示している０例えば、
記録電極に＋１００Ｖの電圧を印加した場合において、
消去可能となる消去手段の電極への印加電圧Ｖ′は一４
７≦ｖ’＜。It shows the range where toner adheres to the recording medium and the recording medium becomes dirty. Furthermore, the area indicates the range of erase defects caused by insufficient voltage application during erasing. For example,
When a voltage of +100V is applied to the recording electrode,
The voltage V' applied to the electrode of the erasing means that enables erasing is -4
7≦v'<.
で、さらに好ましくは一１８≦ｖ′≦−２となる。また
、消去不良は−２くＶ′で生じ、逆極性の帯電によるト
ナー付着はＶ’＜−４７のときに生じることを示してい
る。More preferably, -18≦v'≦-2. It is also shown that erasing failure occurs at -2 V', and toner adhesion due to reverse polarity charging occurs when V'<-47.
第５図は本発明のさらに他の実施例を示すものであり、
前記実施例と同一の部分には同一の符号を付して説明す
ると、この実施例では、消去手段１４の構成が前記実施
例と異なっている。すなわち、この実施例では、電極１
６が円筒状のスリーブからなっており、該スリーブ１６
内に円柱状の永久磁石が配設されている。しかして、ス
リーブ１６又は磁石１５の一方を回転させることにより
、スリーブ１６表面に形成されたトナーブラシ１７を回
転させる。こうすることによって消去効率が向上する。FIG. 5 shows still another embodiment of the present invention,
The same parts as in the previous embodiment will be described with the same reference numerals.In this embodiment, the configuration of the erasing means 14 is different from the previous embodiment. That is, in this example, electrode 1
6 consists of a cylindrical sleeve, and the sleeve 16
A cylindrical permanent magnet is placed inside. By rotating either the sleeve 16 or the magnet 15, the toner brush 17 formed on the surface of the sleeve 16 is rotated. This improves erasing efficiency.
上記スリーブ１６には、記録電極ｌＯと逆極性の電圧が
印加される。その他の構成及び作用は前記実施例と同一
であるので説明を省略する。A voltage of opposite polarity to that of the recording electrode IO is applied to the sleeve 16. The other configurations and functions are the same as those of the previous embodiment, so their explanation will be omitted.
なお、前記実施例で用いられた記録媒体ｌの誘電層１１
の体積抵抗値は、１０７〜ＩＱＩ＋（００膳）と大きい
ものである。Note that the dielectric layer 11 of the recording medium l used in the above embodiment
The volume resistance value of is as large as 107 to IQI+ (00 sets).
また、記録媒体の表面を機械的な損傷や汚れから守るた
め、表面に保護層を設けた構成の記録媒体でも同様に適
用可能なことは勿論である。Further, it goes without saying that the present invention can also be applied to a recording medium having a structure in which a protective layer is provided on the surface of the recording medium in order to protect the surface from mechanical damage and dirt.
さらに、前記実施例では、記録電極にプラスの電圧を印
加し、消去手段の電極にマイナスの電圧を印加した場合
について説明したが、極性を逆にしてもよい０例えば、
記録電極に−３０〜−２００Ｖの電圧を印加し、消去手
段の電極に０＜Ｖ’≦＋１００Ｖ、より好マシくは＋５
≦Ｖ′≦＋３０Ｖの電圧を印加するようにしてもよい、
この場合、トナーにはマイナス帯電のものが用いられる
ことは勿論である。Further, in the above embodiment, a case was explained in which a positive voltage was applied to the recording electrode and a negative voltage was applied to the electrode of the erasing means, but the polarity may be reversed. For example,
A voltage of -30 to -200V is applied to the recording electrode, and a voltage of 0<V'≦+100V, preferably +5, is applied to the electrode of the erasing means.
A voltage of ≦V′≦+30V may be applied.
In this case, of course, negatively charged toner is used.
実施例では表示部この例を説明したが、表示とともに又
は表示することなく転写材に記録したトナー像を転写す
るようにして用いても良い。Although this example of the display section has been described in the embodiment, it may be used to transfer a recorded toner image onto a transfer material with or without displaying.
（発明の効果）
本発明は以上の構成及び作用よりなるもので、記録媒体
の誘電層の抵抗値を低下させる必要がないので１画像Ｃ
度が薄くなることもなく、画像の消去時には記録媒体に
電荷を残すことなく画像を消去でき、鮮明な画像が得ら
れる。(Effects of the Invention) The present invention has the above-described structure and operation, and since there is no need to reduce the resistance value of the dielectric layer of the recording medium, one image C
The image can be erased without leaving any charge on the recording medium when erasing the image, and a clear image can be obtained.
第１図は本発明に係る板書記録装置の一実施例を示す構
成図、第２図は画像形成原理を示す説明図、第３図（イ
）、（ｒｌ）、（ハ）、（ニ）は画像の記録及び消去プ
ロセスを示す説明図、第４図は画像の消去特性を示すグ
ラフ、第５図は本発明の他の実施例を示す構成図、第６
図は従来の板書記録装置を示す構成図、第７図（４）
、 （ｔ＋） 、 （ハ）は画像の記録及び消去プロセ
スを示す説明図である。
符 号 の 説 明
１・・・記録媒体 ２，３・・・ローラ４・・
・表示部 ６・・・画像形成手段９・・・ト
ナー １０・・・記録電極１１・・・誘電層
１２・・・導電層１４・・・消去手段
１６・・・電極第１図
第２図
第３図
（イ）
りｎ
第４図
−ｔ’？、ａ 電”Ｗ
（Ｖ）第５図
第６図Fig. 1 is a configuration diagram showing an embodiment of a board writing device according to the present invention, Fig. 2 is an explanatory diagram showing the principle of image formation, and Figs. 3 (a), (rl), (c), (d). 4 is an explanatory diagram showing the image recording and erasing process, FIG. 4 is a graph showing the image erasing characteristics, FIG. 5 is a configuration diagram showing another embodiment of the present invention, and FIG.
The figure is a block diagram showing a conventional board recording device, Fig. 7 (4)
, (t+), (c) are explanatory diagrams showing the image recording and erasing process. Explanation of symbols 1...Recording medium 2, 3...Roller 4...
- Display section 6... Image forming means 9... Toner 10... Recording electrode 11... Dielectric layer 12... Conductive layer 14... Erasing means
16...Electrode Figure 1 Figure 2 Figure 3 (A) Ri n Figure 4-t'? ,a Den”W
(V) Figure 5 Figure 6
Claims (1)
記記録媒体の導電層と表面に着色物質が連続して供給さ
れる電極との間に画像信号に対応した電圧を印加し、記
録媒体上に着色物質を付着させて画像を形成する手段と
、前記記録媒体を表示部にて面状にかつ移動可能に支持
する手段と、前記記録媒体上に付着した着色物質を消去
する手段とを有する板書記録装置において、前記消去手
段に記録媒体と対向する電極を設け、該電極に前記記録
電極へ印加される信号電圧と逆極性の電圧を印加するこ
とを特徴とする板書記録装置。A voltage corresponding to an image signal is applied between an endless belt-shaped recording medium having a conductive layer on the back side and an electrode to which a colored substance is continuously supplied to the conductive layer and the surface of the recording medium. means for forming an image by depositing a colored substance thereon; means for movably supporting the recording medium in a planar manner in a display section; and means for erasing the colored substance deposited on the recording medium. 1. A board recording device comprising: an electrode facing the recording medium in the erasing means, and a voltage having a polarity opposite to a signal voltage applied to the recording electrode is applied to the electrode.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61162814A JPH0650419B2 (en) | 1986-07-10 | 1986-07-10 | Image recorder |
| US07/154,435 US4788564A (en) | 1986-07-10 | 1988-02-09 | Board recording apparatus with reduced smudge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61162814A JPH0650419B2 (en) | 1986-07-10 | 1986-07-10 | Image recorder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6318384A true JPS6318384A (en) | 1988-01-26 |
| JPH0650419B2 JPH0650419B2 (en) | 1994-06-29 |
Family
ID=15761732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61162814A Expired - Fee Related JPH0650419B2 (en) | 1986-07-10 | 1986-07-10 | Image recorder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0650419B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0317242A2 (en) * | 1987-11-17 | 1989-05-24 | Canon Kabushiki Kaisha | Cleaning device for conductive magnetic toner and image recording apparatus using same |
| JPH02130576A (en) * | 1988-11-10 | 1990-05-18 | Canon Inc | Image forming device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56138774A (en) * | 1980-04-01 | 1981-10-29 | Canon Inc | Cleaning method |
| JPS59218474A (en) * | 1983-05-26 | 1984-12-08 | Matsushita Graphic Commun Syst Inc | Soft copy device |
-
1986
- 1986-07-10 JP JP61162814A patent/JPH0650419B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56138774A (en) * | 1980-04-01 | 1981-10-29 | Canon Inc | Cleaning method |
| JPS59218474A (en) * | 1983-05-26 | 1984-12-08 | Matsushita Graphic Commun Syst Inc | Soft copy device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0317242A2 (en) * | 1987-11-17 | 1989-05-24 | Canon Kabushiki Kaisha | Cleaning device for conductive magnetic toner and image recording apparatus using same |
| US4989021A (en) * | 1987-11-17 | 1991-01-29 | Canon Kabushiki Kaisha | Cleaning device for conductive magnetic toner and image recording apparatus using same |
| JPH02130576A (en) * | 1988-11-10 | 1990-05-18 | Canon Inc | Image forming device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0650419B2 (en) | 1994-06-29 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |