JPS5874366A - Electrostatic recorder - Google Patents
Electrostatic recorderInfo
- Publication number
- JPS5874366A JPS5874366A JP56172905A JP17290581A JPS5874366A JP S5874366 A JPS5874366 A JP S5874366A JP 56172905 A JP56172905 A JP 56172905A JP 17290581 A JP17290581 A JP 17290581A JP S5874366 A JPS5874366 A JP S5874366A
- Authority
- JP
- Japan
- Prior art keywords
- feed roller
- paper
- paper feed
- pulse
- printing
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/36—Blanking or long feeds; Feeding to a particular line, e.g. by rotation of platen or feed roller
- B41J11/42—Controlling printing material conveyance for accurate alignment of the printing material with the printhead; Print registering
Landscapes
- Dot-Matrix Printers And Others (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
- Character Spaces And Line Spaces In Printers (AREA)
- Electrophotography Using Other Than Carlson'S Method (AREA)
- Fax Reproducing Arrangements (AREA)
- Handling Of Sheets (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は静電記録装置、詳しくは静電記録用マルチヘッ
ドに対する制御装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electrostatic recording device, and more particularly to a control device for a multi-head for electrostatic recording.
従来の静電記録装置は用紙の送りをパルスモータにより
駆動される紙送りローラにより行い、この間パルスモー
タを駆動しているパルス列に同期させて印写信号により
マルチヘッドに電圧を印加して用紙に静電＊曽を形成し
ている。したがって上記パルス列により正確にパルスモ
ータが回転し・用紙が正確に送られていれば用紙の規定
の位置に４−
２
静電８ｍが形７成されるが、パルスモータの回転に瞬時
的にしろ変調があると用紙の規定の位置に靜％僧儂は形
成されなくなる〇
一般にパルスモータで紙送りローラを駆動する場合、負
荷慣性は大きく、これに打勝って所要の回転をさせる必
要がある。したがってスタート時の必要な初期トルクは
定常状態における必要トルクこと比較し大きく、このこ
とはパルスモータのｌステップ間の過渡期において、パ
ルスモータはオー７ニーシ−トシ、定位置に安定するま
でに数ｍ５ｅｃを必要とし、この間パルスモータは定位
置を中心に行きつ戻りつ動いているので位置が定まらな
い・したがってこの間にマルチヘッドに画像信号による
電圧印加を行うと静電潜像が用紙の定位置に形成されな
い可能性を生ずる口したがって上記現象を避けるために
パルスモータが定位置に安定嫌にマルチヘッドに電圧印
加を行うと、ｌステップ当りの時間が長くなり、したが
って印写時間か長くなると言う欠点があった。In conventional electrostatic recording devices, paper is fed by a paper feed roller driven by a pulse motor, and during this time, a voltage is applied to the multi-head using a printing signal in synchronization with the pulse train that drives the pulse motor, and the paper is fed. It forms an electrostatic *so. Therefore, if the pulse motor is rotated accurately by the above pulse train and the paper is fed accurately, an electrostatic charge of 8 m will be formed at the specified position of the paper, but if it is instantaneous due to the rotation of the pulse motor. If there is modulation, the paper will not be formed at the specified position.Generally, when driving a paper feed roller with a pulse motor, the load inertia is large, and it is necessary to overcome this and achieve the required rotation. Therefore, the initial torque required at the time of starting is large compared to the torque required in a steady state. m5ec is required, and during this time the pulse motor is moving back and forth around the fixed position, so the position is not fixed. Therefore, if a voltage is applied to the multi-head according to the image signal during this period, the electrostatic latent image will be placed at the fixed position on the paper. Therefore, in order to avoid the above phenomenon, if voltage is applied to the multi-head without stabilizing the pulse motor in a fixed position, the time per step becomes longer, and therefore the printing time becomes longer. There were drawbacks.
また史に用紙が静電気により９！１固に紙送りローＰ３
うなどに付層するなどの原因により一時的にせよ負荷が
増大すると、パルスモータがトルク不足で脱調して規定
の回転をすることが出来なくなると、静電潜像が用紙の
定位置に形成されなくなると言う欠点もあった゛。In addition, if the load increases even temporarily due to static electricity, such as when paper gets stuck on the paper feed row P3, etc., the pulse motor may step out due to insufficient torque and rotate at the specified speed. There is also the disadvantage that if this is no longer possible, the electrostatic latent image will not be formed at a fixed position on the paper.
本発明は上記の事情に鑑みなされたもので、目的とする
所は紙送り用駆動モータの変調に影曽されずに高速なる
印写を可能にする静電記録装置を提供するにある。The present invention has been made in view of the above circumstances, and an object thereof is to provide an electrostatic recording device that enables high-speed printing without being affected by the modulation of the paper feed drive motor.
以下本発明の一実施例を図面によって説明する。An embodiment of the present invention will be described below with reference to the drawings.
第１図は本発明の一実施例の基本構成図、絡２図はパル
スジ異ネレータ（ＰＧ）の出力によるマルチヘッドに対
する画像信号印加を制御する制御系のブロック図、第３
図はパルスジェネレータ（ＰＧ）の出力とマルチヘッド
に対する印写開始指令との時間的関係を示す図である・
第１図において１は用紙、２は紙送りローラ、３は紙送
りローラ２に直結し・た駆動用モータ、４は紙送りロー
ラ２に直結したパルスジ具ネレータ（ＰＧ）、ｓは紙送
りローラ２との間に用紙ｌを介在ｉｇｇｑｓｇ−７４３
６Ｇ （ｚ’＞
させて、用Ｍｌを紙送りローラ２に加圧する抑えローラ
、６は用紙ｌに静電潜像を形成させるマルチヘッド、７
は現像器、８は定着器である。Fig. 1 is a basic configuration diagram of an embodiment of the present invention, Fig. 2 is a block diagram of a control system that controls the application of image signals to the multi-head by the output of a pulse generator (PG), and Fig. 3
The figure shows the temporal relationship between the output of the pulse generator (PG) and the printing start command for the multi-head. In Figure 1, 1 is the paper, 2 is the paper feed roller, and 3 is directly connected to the paper feed roller 2. 4 is a pulse generator (PG) directly connected to the paper feed roller 2, s is a drive motor with a paper l interposed between it and the paper feed roller 2,
6G (z'>), a holding roller that presses the paper Ml against the paper feed roller 2, 6 a multi-head that forms an electrostatic latent image on the paper l, 7
8 is a developing device, and 8 is a fixing device.
用紙ｌは駆動用モータ３の駆動による紙送りローラ２の
回転に伴い矢印Ｘ方向に移動する。この間第２図、第３
図に示されるごとく紙送りローラ２の回転に伴いパルス
ジ暴ネレータ（ＰＧ）は紙送りローラ２の回転角度に比
例したパルス列１を出力する。パルス列象は印写開始を
指令する印写指令コントローラ９に入力される・印写指
令コントローラ９からは、パルス判御のパルスが規定数
カウントされるごとに、これに同期して用紙１に対する
１ライン分の印写開始指令すがドライバー回路１０に出
力される。またドライバー回路１Ｇからは印写開始指令
熟の入力ごとに１ライン分の画像信９°”ｖ ｉｖ ｆ
’ｓ ｙ、μ６°ｍ″８ｔ″゛Ｍ＊１ｉＣ１９イン分の
静電潜像が形成される。上記静電潜像は用紙ｌの矢印Ｘ
方尚への移動に伴い、現像器７で現像され、定着＠Ｓで
定着される。The paper l moves in the direction of arrow X as the paper feed roller 2 rotates due to the drive of the drive motor 3. During this time, Figures 2 and 3
As shown in the figure, as the paper feed roller 2 rotates, a pulse generator (PG) outputs a pulse train 1 proportional to the rotation angle of the paper feed roller 2. The pulse train is input to the printing command controller 9, which commands the start of printing.The printing command controller 9 sends a pulse train to the paper 1 in synchronization with the pulse control pulse every time a specified number of pulses are counted. A print start command for the line is output to the driver circuit 10. Also, from the driver circuit 1G, one line of image signal 9°"v iv f is sent each time a printing start command is input.
An electrostatic latent image of 19 inches is formed. The electrostatic latent image above is the arrow X on paper l.
As the image moves to the center, it is developed in the developing device 7 and fixed in the fixing unit @S.
以上述べたごとく本実施例では紙送りの距離に５
正確に比例するパルスジ暴ネレータ（ＰＧ）の回転角度
に比例したパルス判御をカウントしてこれに同期して、
用紙が規定位置に達した瞬間をとらえてマルチへＶドロ
に１ライン分の画像信号Ｃが入力されるから、駆動用モ
ータ３の速度に変化があっても、また上ｆｆｌｌｌ間の
前後に用紙の変位があっても、全く影譬されることがな
い。したがって１ラインごとに用紙１の規定位置に静電
潜像が正確に形成されるものである。As described above, in this embodiment, pulse control proportional to the rotation angle of the pulse generator (PG), which is exactly proportional to the paper feeding distance, is counted and synchronized with this.
The image signal C for one line is input to the V-drawer at the moment when the paper reaches the specified position, so even if there is a change in the speed of the drive motor 3, the paper is Even if there is a displacement of , it will not be affected at all. Therefore, an electrostatic latent image is accurately formed at a prescribed position on the paper 1 for each line.
なお上記パルスの規定数は用紙１の移動方向の距離に換
算して、記録体のライン間の距離、即ち矢印Ｘ方向の画
像を構成する単位であるドツトとドツトの間の距離に相
当するものである。したがって画像信号によりきまるも
ので、必ずしも一定のものではない。Note that the specified number of pulses mentioned above is equivalent to the distance between lines on the recording medium, that is, the distance between dots, which is the unit that constitutes the image in the direction of arrow X, when converted to the distance in the moving direction of the paper 1. It is. Therefore, it is determined by the image signal and is not necessarily constant.
又本実施例では用紙１が紙送りローラ２により送り装置
の明細書に述べられている駆動ローラに相当する紙送り
ローラ２の豪雨に硬質の材料より６
なる粒子によって形成された凹凸層を、圧接ローラに相
当する抑えローラＳの豪雨に弾力性に富む材質よりなる
層をそれぞれ形成させることにより、すべる９となく用
紙を送ることが出来、極めて画質のよい画像を得ること
が出来た。以上本実施例では単色の静電記ａ装置につい
て説明したが１用紙の移動方向に複数の色の異なるトナ
ーを内蔵した現像粉を配置し１１色ごとに静電潜像形成
、現像°、定着をした後、用紙を静電潜像形成前の位置
に戻し再度静電ｆａ像形成、ＩＡ儂、定着を繰り返えす
、多色静電記鍮装置に本発明の技術思想を適用すると、
多色記−で最も問題とされる色ずれを防止することが出
来る。In this embodiment, the paper 1 is moved by the paper feed roller 2, which corresponds to the drive roller mentioned in the specifications of the feed device, to form an uneven layer formed by particles made of a hard material. By forming layers made of highly elastic material in the heavy rain of the restraining roller S, which corresponds to the pressure roller, it was possible to feed the paper without slipping 9, and it was possible to obtain an image of extremely high quality. In this embodiment, a single-color electrostatic recording device has been described, but developer powder containing toner of a plurality of different colors is arranged in the moving direction of one sheet, and electrostatic latent images are formed, developed, and fixed for each of 11 colors. When the technical idea of the present invention is applied to a multicolor electrostatic recording device, which returns the paper to the position before forming the electrostatic latent image and repeats electrostatic FA image formation, IA, and fixing,
It is possible to prevent color misregistration, which is the most problematic problem in multicolor printing.
以上本発明によれば回転精度の高い駆動用モータを使用
することなく、画質の優れた画像を高速印写小米るから
その効果は極めて大である０As described above, according to the present invention, high-quality images can be printed at high speed without using a drive motor with high rotational precision, so the effect is extremely large.
第１−は本発明の一実施例の基本構成図、第２図はパル
スジ暴ネレータ（ＰＧ）の出力によるマルチヘッドに対
する画像信号印加を制御する制御系Ｐフ
のブロック図、第３図はパルスジェネレータ（ＰＧ）の
出力とマルチヘッドに対する印写開始指令との時間的関
係を示す図である。
１・・・・・・用紙、２・・・・・紙送りローラ、３・
・・・１１用モータ、４・・・・・パルスジェネレータ
、５・・−・抑えローラ、６・・・・・・マルチヘッド
、７・・・・・・１ＡＳＳ、８・・・・・・定着部。
特許出願人
東洋電機製造株式会社
代表者 土 井 厚
符閏昭５８−７４３６Ｇ（３）
ｉ ノ゛ Ｉｆｉ
γ
第 ２図
、、第３ｆｌ
す、１゜1- is a basic configuration diagram of an embodiment of the present invention, FIG. 2 is a block diagram of a control system P which controls the application of image signals to the multi-head by the output of a pulse generator (PG), and FIG. FIG. 3 is a diagram showing the temporal relationship between the output of a generator (PG) and a printing start command to a multi-head. 1...Paper, 2...Paper feed roller, 3.
...Motor for 11, 4...Pulse generator, 5...Pressure roller, 6...Multi head, 7...1ASS, 8... Anchoring part. Patent Applicant Toyo Denki Seizo Co., Ltd. Representative Doi Atsushi No. 58-7436G (3)
Claims (1)
設し、諌パルスジ島ネレータの出力に同期させて、１ラ
イン分の印写を開始するための印写開始指令を出力させ
、骸印写開始指令に同期して、１ライン分ずつの画像信
号をマルチヘッドに印加することを特徴とする静電記録
装置。Directly connect the paper feed roller to turn off the pulse generator.
and outputs a printing start command to start printing one line in synchronization with the output of the Isama Parsjishima nerator, and outputs an image signal for one line in synchronization with the printing start command. An electrostatic recording device characterized in that the voltage is applied to multiple heads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56172905A JPS5874366A (en) | 1981-10-30 | 1981-10-30 | Electrostatic recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56172905A JPS5874366A (en) | 1981-10-30 | 1981-10-30 | Electrostatic recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5874366A true JPS5874366A (en) | 1983-05-04 |
Family
ID=15950511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56172905A Pending JPS5874366A (en) | 1981-10-30 | 1981-10-30 | Electrostatic recorder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5874366A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60241062A (en) * | 1984-05-16 | 1985-11-29 | Matsushita Electric Ind Co Ltd | Copying machine |
| JPH09123558A (en) * | 1995-10-27 | 1997-05-13 | Kofu Nippon Denki Kk | Thermal printer |
-
1981
- 1981-10-30 JP JP56172905A patent/JPS5874366A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60241062A (en) * | 1984-05-16 | 1985-11-29 | Matsushita Electric Ind Co Ltd | Copying machine |
| JPH09123558A (en) * | 1995-10-27 | 1997-05-13 | Kofu Nippon Denki Kk | Thermal printer |
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