JP2758710B2 - Printer device - Google Patents
Printer deviceInfo
- Publication number
- JP2758710B2 JP2758710B2 JP2255660A JP25566090A JP2758710B2 JP 2758710 B2 JP2758710 B2 JP 2758710B2 JP 2255660 A JP2255660 A JP 2255660A JP 25566090 A JP25566090 A JP 25566090A JP 2758710 B2 JP2758710 B2 JP 2758710B2
- Authority
- JP
- Japan
- Prior art keywords
- speed
- roller
- printing
- paper
- continuous paper
- 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.)
- Expired - Fee Related
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はプリンタ装置に関し、特にその用紙搬送路で
の搬送ローラの駆動に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer device, and more particularly, to driving a transport roller in a paper transport path.
一般に連続用紙に対して印字を行なう装置は第２図に
示す構成をとっている。In general, an apparatus for printing on continuous paper has the configuration shown in FIG.
プリンタ装置１の規定位置にセットされた印刷用紙９
は、まず、トラクタ部３で搬送されながら印字部２によ
って印字される。印字が終了し、トラクタ部３から搬出
されてきた用紙は次に定着部４に入る。ここで用紙は紙
送りローラ６によって搬送されながら、定着ローラ５で
印字像を用紙に定着させる。そして用紙はスタッカ部に
搬送され、スタッカローラ７を通して折りたたまれ印字
は完了する。Printing paper 9 set at a specified position of printer device 1
Is first printed by the printing unit 2 while being conveyed by the tractor unit 3. After the printing is completed, the paper carried out of the tractor unit 3 enters the fixing unit 4 next. Here, while the paper is conveyed by the paper feed roller 6, the print image is fixed on the paper by the fixing roller 5. Then, the sheet is conveyed to the stacker unit, folded through the stacker roller 7, and printing is completed.
一般にプリンタ装置ではその用紙の搬送路中で用紙の
たるみを極力、防止すべき場合がある。例えば上述のプ
リンタ装置１では印字部２と定着部４である。印字部２
ではトラクタによって搬送されているため問題はない
が、定着部４では定着ローラ５と搬送ローラ６との間で
たるむ可能性がある。このたるみを防止するため、通常
のスピードで回転している定着ローラ５に対して搬送ロ
ーラ６は若干、速い回転数で回転させている。これによ
り、この間の用紙には引張り力が働き、たるみは防止さ
れている。Generally, in a printer apparatus, there is a case where it is necessary to prevent the slack of the sheet in the sheet conveyance path as much as possible. For example, in the printer device 1 described above, the printing unit 2 and the fixing unit 4 are provided. Printing unit 2
There is no problem because the sheet is conveyed by the tractor, but there is a possibility that the fixing unit 4 sags between the fixing roller 5 and the conveyance roller 6. In order to prevent this slack, the conveying roller 6 is rotated at a slightly higher rotation speed than the fixing roller 5 rotating at a normal speed. As a result, a tensile force acts on the sheet during this time, and the sheet is prevented from sagging.
また、搬送の開始時には搬送ローラを先に回転開始さ
せ、停止時には遅れて停止させる。Further, at the start of the conveyance, the rotation of the conveyance roller is started first, and when the conveyance is stopped, the conveyance roller is stopped with a delay.
第４図は、この回転速度の関係を示したチャートであ
る。FIG. 4 is a chart showing the relationship between the rotation speeds.
この従来のプリンタ装置では搬送開始時に定着ローラ
に負荷がかかっているため、第４図に示すように、定着
ローラは始め、設定回転数より速く回転する。この回転
速度より、搬送ローラは速く回転させておく必要があ
る。このため、定常状態ではこの２つのローラにかなり
の回転速度（実際は駆動力）の差ができる。この差は用
紙とローラとのスリップやローラの過負荷をもたらす。
同様にこの問題は搬送の開始，停止時にも発生する。In this conventional printer device, since a load is applied to the fixing roller at the start of conveyance, as shown in FIG. 4, the fixing roller starts rotating faster than the set number of rotations. The transport roller needs to be rotated faster than this rotation speed. For this reason, in the steady state, there is a considerable difference in rotational speed (actually, driving force) between these two rollers. This difference results in slip between the paper and the roller and overload of the roller.
Similarly, this problem also occurs at the start and stop of transport.
上述した問題点を解決するため、本発明では、連続紙
を使用し、前記連続紙を所定の印刷速度で搬送させなが
ら印字するプリンタ装置において、前記連続紙の搬送路
中に設けられ駆動力を有する第１のローラと、前記連続
紙の搬送路中に設けられ第１のローラより上流に位置し
前記印刷速度で回転し駆動力を有する第２のローラとを
有し、前記第１のローラの回転速度を、印刷に伴う前記
連続紙の搬送開始から一定時間、前記印刷速度より高速
の第１の速度とし、その後前記印刷速度より高速であっ
て前記印刷速度に近く前記第１の速度より遅い第２の速
度に変化させている。In order to solve the problems described above, according to the present invention, in a printer device that uses continuous paper and prints while transporting the continuous paper at a predetermined printing speed, a driving force provided in a transport path of the continuous paper is used. And a second roller provided in the continuous paper transport path and located upstream of the first roller and rotating at the printing speed and having a driving force. The rotation speed is a first speed higher than the printing speed for a certain period of time from the start of the conveyance of the continuous paper accompanying printing, and then higher than the printing speed and closer to the printing speed than the first speed. The speed is changed to the second speed which is slow.
次に本発明の一実施例について図面を参照して説明す
る。Next, an embodiment of the present invention will be described with reference to the drawings.
本実施例は前述の従来例で例示したプリンタについて
の実施例である。従って全体構成は第２図と同様であ
り、説明はしない。本実施例の特徴部分は定着部４にあ
るためその詳細図である第３図を参照して説明する。This embodiment is an embodiment of the printer exemplified in the above-mentioned conventional example. Accordingly, the overall configuration is the same as that of FIG. 2 and will not be described. Since the characteristic portion of this embodiment is in the fixing section 4, it will be described with reference to FIG.
定着ローラ５は、トラクタ部３から送られた用紙９
を、一定の張力に保つためにバッファ・アーム10の角度
に応じて、回転速度を調整している。すなわち、用紙張
力が低くなると、バッファ・アーム10が上昇するので、
それを検出し、定着ローラ５の速度を早める。早くなり
すぎると、用紙は張った状態になるのでバッファ・アー
ム10は下降するので検出し、定着ローラ速度を緩める。
しかるに定着ローラ部では用紙の送行速度は一定ではな
く特に印刷開始時は、図−１の様な速度カーブで回転し
ているのが普通である。The fixing roller 5 is used to transfer the paper 9 sent from the tractor unit 3.
The rotation speed is adjusted in accordance with the angle of the buffer arm 10 in order to maintain a constant tension. That is, when the paper tension decreases, the buffer arm 10 moves up,
When this is detected, the speed of the fixing roller 5 is increased. If the speed is too fast, the sheet will be stretched and the buffer arm 10 will be lowered, so it is detected, and the fixing roller speed is reduced.
However, in the fixing roller section, the paper transport speed is not constant, and especially at the start of printing, the paper usually rotates with a speed curve as shown in FIG.
搬送ローラ６は、定着ローラ５より下段に位置し常に
用紙より早い速度で回転しながら、定着ローラで送られ
る用紙がたるまぬ様にスタッカ部８へ送り出している。
ここで、紙送りローラ６の回転制御機構は、印刷が開始
と同時に紙送りローラを回転開始し、印刷速度の200％
で回転させる。それから約１秒後に105％に減速させ、
印刷停止と同時に停止させる。ここで初めの１秒間に20
0％と高い速度で回転させているのは、回転しはじめる
タイミングを印刷の開始と同時に行なうため、より早い
加速を行なわないと、第３図に示す様に定着ローラ直後
に、用紙たるみが発生し、用紙にしわを発生させたり、
印字に悪影響を及ぼすことがあるためである。The transport roller 6 is located below the fixing roller 5 and constantly rotates at a higher speed than the sheet, and sends the sheet sent by the fixing roller to the stacker unit 8 so that it does not slack.
Here, the rotation control mechanism of the paper feed roller 6 starts rotating the paper feed roller at the same time as the printing starts, and the rotation speed of the paper feed roller 6 is 200% of the printing speed.
Rotate with. Then, about 1 second later, slow down to 105%
Stop printing simultaneously with stopping printing. Here, 20 for the first second
The reason for rotating at a high speed of 0% is that the rotation starts at the same time as the start of printing, and unless the acceleration is made faster, the paper slack occurs immediately after the fixing roller as shown in FIG. And wrinkles the paper,
This is because printing may be adversely affected.
以上説明したように本発明は、搬送ローラの回転速度
を、定着ローラの回転速度の変化に供なって、可変させ
ることによって、用紙たるみによる用紙しわや印字障害
がなく、搬送ローラの摩耗をおさえ、搬送ローラの寿命
を長くするという効果がある。As described above, according to the present invention, by changing the rotation speed of the conveyance roller by changing the rotation speed of the fixing roller, there is no paper wrinkle or print trouble due to paper slack, and the wear of the conveyance roller is suppressed. This has the effect of extending the life of the transport rollers.
第１図は、本発明の紙送りローラの回転速度と、定着ロ
ーラ速度を示すグラフ、第２図は、プリンタ装置の構造
図、第３図は定着部の構造図、第４図は、従来の方法で
の紙送りローラ回転速度を示すグラフである。 １……プリンタ装置本体、２……印字部、３……トラク
タ部、４……定着部、５……定着ローラ、６……紙送り
ローラ、７……スタッカローラ、８……スタッカ部、９
……印刷用紙、10……バッファ・アーム。FIG. 1 is a graph showing the rotational speed of the paper feed roller and the fixing roller speed of the present invention, FIG. 2 is a structural diagram of a printer device, FIG. 3 is a structural diagram of a fixing unit, and FIG. 6 is a graph showing a paper feed roller rotation speed in the method of FIG. DESCRIPTION OF SYMBOLS 1 ... Printer apparatus main body, 2 ... Printing part, 3 ... Tractor part, 4 ... Fixing part, 5 ... Fixing roller, 6 ... Paper feed roller, 7 ... Stacker roller, 8 ... Stacker part, 9
... printing paper, 10 ... buffer arm.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭49−29529（ＪＰ，Ａ) 実開 昭53−131705（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) B41J 15/16 B41J 11/42 B65H 23/188 B65H 20/02──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-49-29529 (JP, A) JP-A-53-131705 (JP, U) (58) Fields investigated (Int. Cl. 6 , DB name) B41J 15/16 B41J 11/42 B65H 23/188 B65H 20/02
Claims (1)
速度で搬送させながら印字するプリンタ装置において、 前記連続紙の搬送路中に設けられ駆動力を有する第１の
ローラと、前記連続紙の搬送路中に設けられ第１のロー
ラより上流に位置し前記印刷速度で回転し駆動力を有す
る第２のローラとを有し、 前記第１のローラの回転速度を、印刷に伴う前記連続紙
の搬送開始から一定時間、前記印刷速度より高速の第１
の速度とし、その後前記印刷速度より高速であって前記
印刷速度に近く前記第１の速度より遅い第２の速度に変
化させることを特徴とするプリンタ装置。1. A printer device that uses continuous paper and prints while transporting the continuous paper at a predetermined printing speed, comprising: a first roller provided in a transport path of the continuous paper and having a driving force; A second roller that is provided in the continuous paper transport path and that is located upstream of the first roller and that rotates at the printing speed and has a driving force; and that the rotation speed of the first roller is associated with printing. For a certain period of time from the start of transport of the continuous paper, a first speed higher than the printing speed is set.
And then changing to a second speed which is higher than the printing speed but close to the printing speed and lower than the first speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2255660A JP2758710B2 (en) | 1990-09-26 | 1990-09-26 | Printer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2255660A JP2758710B2 (en) | 1990-09-26 | 1990-09-26 | Printer device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04133772A JPH04133772A (en) | 1992-05-07 |
| JP2758710B2 true JP2758710B2 (en) | 1998-05-28 |
Family
ID=17281841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2255660A Expired - Fee Related JP2758710B2 (en) | 1990-09-26 | 1990-09-26 | Printer device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2758710B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3914274B2 (en) * | 1995-03-25 | 2007-05-16 | ペンタックス株式会社 | Recording paper feed unevenness prevention mechanism |
| JP4796528B2 (en) * | 2007-03-23 | 2011-10-19 | 株式会社リコー | Paper transport control method and electrophotographic apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4929529A (en) * | 1972-07-14 | 1974-03-16 | ||
| JPS53131705U (en) * | 1978-03-15 | 1978-10-19 |
-
1990
- 1990-09-26 JP JP2255660A patent/JP2758710B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04133772A (en) | 1992-05-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |