JPS61130150A - Cut paper printer - Google Patents
Cut paper printerInfo
- Publication number
- JPS61130150A JPS61130150A JP59254484A JP25448484A JPS61130150A JP S61130150 A JPS61130150 A JP S61130150A JP 59254484 A JP59254484 A JP 59254484A JP 25448484 A JP25448484 A JP 25448484A JP S61130150 A JPS61130150 A JP S61130150A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- printing
- feed
- feed roller
- rotation
- 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
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H43/00—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable
- B65H43/04—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable detecting, or responding to, presence of faulty articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H15/00—Overturning articles
- B65H15/004—Overturning articles employing rollers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Controlling Sheets Or Webs (AREA)
- Registering Or Overturning Sheets (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、カット紙を用いてコンピュータの出力情報
を印刷するカット紙プリンタの改良に関し、特に電子写
真方式で用紙表面にドアーを焼付けて印刷を行う装置に
印刷用紙の表裏判別Wltaを付加して用紙のセットミ
スによる印字不良を防止するようにしたカット紙プリン
タに関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an improvement in a cut paper printer that prints computer output information using cut paper, and in particular to printing by printing a door on the surface of the paper using an electrophotographic method. The present invention relates to a cut paper printer in which a function Wlta for determining the front and back sides of printing paper is added to a device that performs this, thereby preventing printing defects due to incorrect setting of paper.
コンピュータの出力情報をカナ漢字を含んだ日本語の形
で印刷するため、最近のオフィス用プリンタではレーザ
光源を用いた電子写真方式のものが多く採用されている
。このようなプリンタでは用紙に対する転写トナーの付
着を確実にするために、表面を滑らかに処理した印刷用
紙を用いるのが普通である。ところが従来のプリンタで
は、印刷すべきカット紙の表裏を間違えてセットした場
合でも、そのまま印刷が実行されて印字品質が悪くなる
結果を生じていた。In order to print computer output information in Japanese format including kana and kanji, many recent office printers employ an electrophotographic method using a laser light source. Such printers typically use printing paper whose surface has been treated to make it smooth in order to ensure that the transferred toner adheres to the paper. However, in conventional printers, even if a cut sheet to be printed is set with the wrong front and back sides, printing continues as is, resulting in poor print quality.
この発明は、以上のような従来の状況から、印刷用紙の
表裏を自動的に判別して裏面印字を防止するようにした
新しいカット紙プリンタの提供を目的とするものである
。SUMMARY OF THE INVENTION In view of the above-mentioned conventional situation, it is an object of the present invention to provide a new cut paper printer that automatically determines the front and back sides of printing paper and prevents printing on the back side.
簡単に述べるとこの発明によるカット紙プリンタは、上
記のような目的を達成するために、カット紙の堆積部と
印字部との間の用紙給送路に、給送機構の一部を利用し
て用紙表裏の+!!擦状態を比較して表裏を判別する表
裏検出部を設け、その出力信号に応答して用紙の反転を
指示するようにしたことを特徴とするものである。Briefly stated, the cut paper printer according to the present invention utilizes a part of the feeding mechanism in the paper feeding path between the cut paper stacking section and the printing section in order to achieve the above object. + on both sides of the paper! ! This paper is characterized in that it is provided with a front/back detection unit that determines whether the paper is front or back by comparing the rubbing conditions, and instructs to reverse the sheet in response to an output signal from the front/back detection unit.
〔作用]
すなわち、電子写真方式のカット紙プリンタで使用する
印刷用紙の表面にはトナーの付着を良くするための平滑
化処理がしであるので、裏面に比べて滑り易くなってい
る。従ってこのような摩擦状態の違いを検出すれば表裏
の判別ができるわけで、この発明では用紙給送路の一部
を利用して給送される用紙表裏の摩擦状態を検出し、そ
の比較結果から用紙セントの間違いを指摘するようにし
ている。[Function] That is, the surface of printing paper used in an electrophotographic cut paper printer is smoothed to improve toner adhesion, so it is more slippery than the back surface. Therefore, by detecting such a difference in the frictional state, it is possible to distinguish between the front and back sides.In this invention, a part of the paper feeding path is used to detect the frictional state of the front and back sides of the paper being fed, and the comparison results are I try to point out mistakes in paper cents.
以下この発明の好ましい実施例につき、図面を参照して
さらに詳細に説明する。Preferred embodiments of the present invention will be described in more detail below with reference to the drawings.
第1図はこの発明による表裏検出部を具えたカット紙プ
リンタの概略構成を示すブロック図で、所要量のカット
紙1を堆積して収容した用紙堆積部2と代表的にブロッ
ク3で示した印字部との間にこの発明の特徴とする表裏
検出部4が設けられている。印字部3は図示しない電荷
像の光学的記録部とトナーによる現像部、および用紙へ
のトナー像の転写部ならびに定着部より成り、この種プ
リンタの通常の構成と特に変わらない。FIG. 1 is a block diagram showing a schematic configuration of a cut paper printer equipped with a front/back detection unit according to the present invention, and includes a paper stacking unit 2 that stores and stores a required amount of cut paper 1, and a block 3 as a representative example. A front/back detection section 4, which is a feature of the present invention, is provided between the printing section and the printing section. The printing section 3 consists of an optical recording section for a charge image (not shown), a developing section using toner, a section for transferring the toner image onto paper, and a fixing section, and is not particularly different from the usual configuration of this type of printer.
表裏検出部4は、2組の送り機構5と6をそなえ、第1
の送り機構5はモータ7で駆動される第1送りローラ8
と第1ピンチローラ9から成る。The front/back detection unit 4 includes two sets of feeding mechanisms 5 and 6, and a first
The feeding mechanism 5 includes a first feeding roller 8 driven by a motor 7.
and a first pinch roller 9.
また第2の送り機構6は別のモータ10で駆動される第
2送りローラ11と第2ピンチローラ12から成る。こ
こで2つのモータ7と10の駆動はモータ制御回路13
で制御され、かつ第1送りローラ8の回転周速度rに比
べて第2送りローラ11の周速度Rが若干速くなるよう
(r<R)それらモータの回転速度が設定されている。Further, the second feed mechanism 6 includes a second feed roller 11 and a second pinch roller 12 that are driven by another motor 10. Here, the two motors 7 and 10 are driven by a motor control circuit 13.
The rotational speeds of these motors are set so that the peripheral speed R of the second feed roller 11 is slightly higher than the rotational peripheral speed r of the first feed roller 8 (r<R).
かくして第1送り機構5に挟まれて第2送り機構6に給
送される用紙1aは、周速度の速い第2送り機構に挟ま
れた時から第2送り機構で引っ張られる関係となり、第
1送り機構と用紙との間に摩擦力が生じる結果となる。In this way, the paper 1a that is sandwiched between the first feeding mechanism 5 and fed to the second feeding mechanism 6 is pulled by the second feeding mechanism from the time it is pinched by the second feeding mechanism having a high peripheral speed, and This results in frictional forces between the feed mechanism and the paper.
この発明では、上記のような用紙引張り時に用紙の表裏
両面で生じる摩擦力を検出して比較するため、第1送り
ローラ8の回転輪と第1ピンチローラ9の回転軸にそれ
ぞれスリット円板14.15と光1ota、 17とホ
トセンサ18、19とから成る回転検出器を付設しであ
る。そしてこれら2系統の回転検出器の出力はそれぞれ
パルスカウンタ2G、 21に入れられ、モータ制御回
路13で設定されたlシート給送毎の所定期間に発生す
るパルスを計数するようになっている。この計数結果は
、それぞれ第2送り機構6が用紙1aを引っ張る時の用
紙上面と第1送りローラ8との摩擦、および用紙下面と
第1ピンチローラ9との摩擦を反映したものとなる。す
なわち送りローラ8を、その正転方向にはモータ7の規
制を越えてフリーに回転できるようモータと連結し、か
つ各ローラ8と9のフリー回転時の回転抵抗と表面*W
係数を等しくしておけば、用紙1aの各面に対するロー
ラの滑りをローラの回転数から検出することができる。In this invention, in order to detect and compare the frictional force generated on both the front and back sides of the paper when the paper is pulled as described above, slit disks 14 are installed on the rotating ring of the first feed roller 8 and the rotating shaft of the first pinch roller 9, respectively. A rotation detector consisting of .15 and light 1ota, 17 and photo sensors 18 and 19 is attached. The outputs of these two systems of rotation detectors are input to pulse counters 2G and 21, respectively, and the pulses generated during a predetermined period of time set by the motor control circuit 13 every time one sheet is fed are counted. This counting result reflects the friction between the top surface of the paper and the first feed roller 8 and the friction between the bottom surface of the paper and the first pinch roller 9 when the second feed mechanism 6 pulls the paper 1a, respectively. In other words, the feed roller 8 is connected to the motor so that it can rotate freely in the normal rotation direction beyond the regulation of the motor 7, and the rotational resistance and surface *W of each roller 8 and 9 during free rotation are determined.
If the coefficients are made equal, the slippage of the roller on each side of the paper 1a can be detected from the number of rotations of the roller.
そしてこの場合、回転数の少ない方が摩擦の小さい滑ら
かな表面に接していたことになる。In this case, the side with a lower rotational speed was in contact with a smooth surface with less friction.
従うで、上記2系統のパルスカウンタ20.21の出力
を比較回路22に入力して比較すれば、その出力信号か
ら用紙lのセット状態を知ることができる0例えば、用
紙上面に接する第1送りローラ8の回転に依存したパル
スカウンタ20の係数値mが他方のパルスカウンタ21
の係数値Mよりも大きい時(m>M) 、比較回路22
から信号を出してその状態を表示ランプ23または警報
器で警告するようにしておけば容易に用紙セットの間違
いを知ることができるし、その信号をモータ制御回路1
3に与えてプリンタの動作を停止することもできる。ま
たこの比較回路の出力信号を別に設けた表裏反転機構2
4に入れ、自動的に用紙の表裏を反転して印刷を継続す
ることも可能である。Therefore, by inputting the outputs of the two pulse counters 20 and 21 to the comparison circuit 22 and comparing them, it is possible to know the set state of the paper l from the output signals. The coefficient value m of the pulse counter 20 that depends on the rotation of the roller 8 is the same as that of the other pulse counter 21.
When the coefficient value M is larger than (m>M), the comparator circuit 22
If the display lamp 23 or an alarm is used to warn of the condition by issuing a signal from
3 to stop printer operation. In addition, the output signal of this comparison circuit is provided separately in a front-back reversing mechanism 2.
It is also possible to automatically turn the paper upside down and continue printing.
第2図は、そのような表裏反転機構の一例構成を示す概
念図で、上記第1図の表裏検出部4の後に、その検出信
号で動作するペーパーゲート25を設け、検出部を通過
した用紙が正常状態のときは上側の正常ルートを通り、
反対セットのときは下側の反転ルートを通って印字部3
に向かうようになっている0表裏反転機構24は、用紙
が順次図示A、B、C,Dのような態様を経て裏返しと
なるよう適宜図示しない縦送りローラと横送りローラを
組み合わせて構成されている。FIG. 2 is a conceptual diagram showing the configuration of an example of such a front-back reversing mechanism. A paper gate 25 is provided after the front/back detection section 4 shown in FIG. When is in a normal state, it passes through the upper normal route,
When setting in the opposite direction, go through the lower reversal route to print section 3.
The front/back reversing mechanism 24 is constructed by appropriately combining a vertical feed roller and a horizontal feed roller (not shown) so that the paper is turned over after sequentially passing through the modes shown in A, B, C, and D in the figure. ing.
なお以上の実施例では、表裏検出を送りローラとピンチ
ローラの滑りの差で判別する例について述べたのである
が、用紙表裏の摩擦状態を検出するためには、他に用紙
引張り時のローラにかかるトルクの差を見る方法等を用
いることも可能である。In the above embodiment, an example was described in which front/back detection is determined based on the difference in slip between the feed roller and the pinch roller, but in order to detect the friction state between the front and back sides of the paper, it is also necessary to check the rollers when pulling the paper. It is also possible to use a method of looking at the difference in torque.
さて以上の説明から明らかなように、要するにこの発明
は、カット紙を用いるプリンタに用紙表裏の摩擦状態の
差から用紙セットの正逆を判別する機能を付加したこと
を骨子とするもので、用紙セットを間違えたまま裏面印
字を行うようなことがな(なり、操作性が向上して、常
に良好な印字結果を得ることができる。よってこの発明
は、カット紙を用いる電子写真方式のプリンタに適用し
て掻めて有益である。As is clear from the above description, the main point of this invention is to add a function to a printer that uses cut paper to determine whether the paper is set in the correct or reverse direction based on the difference in friction between the front and back sides of the paper. This eliminates the possibility of printing on the back side with the wrong set of paper, improving operability and ensuring good printing results at all times. It is beneficial to apply and scratch.
第1図はこの発明を適用したカント紙プリンタの一実施
例構成を示す概略図、第2図は表裏反転機構の一例構成
を説明するための概念図である。
図において、1は用紙、2は用紙堆積部、3は印字部、
4は表裏検出部、5は第1送り機構、6は第2送り機構
、7及び10はモータ、8は第1送りローラ、9は第1
ピンチローラ、11は第2送りローラ、12は第2ビン
チロ6−ラ、14及び15はスリット円板、16′EL
び17は光源、18及び19はホトセンサを示す。FIG. 1 is a schematic diagram showing the construction of an embodiment of a cant paper printer to which the present invention is applied, and FIG. 2 is a conceptual diagram for explaining the construction of an example of a front-back reversing mechanism. In the figure, 1 is paper, 2 is a paper stacking section, 3 is a printing section,
4 is a front/back detection unit, 5 is a first feed mechanism, 6 is a second feed mechanism, 7 and 10 are motors, 8 is a first feed roller, and 9 is a first feed mechanism.
Pinch roller, 11 is a second feed roller, 12 is a second pinch roller, 14 and 15 are slit disks, 16'EL
and 17 are light sources, and 18 and 19 are photo sensors.
Claims (1)
用紙表裏の摩擦状態を比較して表裏を判別する表裏検出
部を設け、その出力信号で用紙の反転を指示するように
したことを特徴とするカット紙プリンタ。A front/back detection unit is installed in the paper feed path between the printing cut paper stacking unit and the printing unit to compare the friction between the front and back sides of the paper to determine whether the paper is front or back, and its output signal instructs the paper to be reversed. A cut paper printer that is characterized by:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59254484A JPS61130150A (en) | 1984-11-30 | 1984-11-30 | Cut paper printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59254484A JPS61130150A (en) | 1984-11-30 | 1984-11-30 | Cut paper printer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS61130150A true JPS61130150A (en) | 1986-06-18 |
Family
ID=17265692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59254484A Pending JPS61130150A (en) | 1984-11-30 | 1984-11-30 | Cut paper printer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS61130150A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63189868A (en) * | 1987-02-03 | 1988-08-05 | Fuji Photo Film Co Ltd | Image recording method |
JPS6436370U (en) * | 1987-08-25 | 1989-03-06 | ||
US7517077B2 (en) * | 2003-09-02 | 2009-04-14 | Seiko Epson Corporation | Medium transporting device and recording apparatus incorporating with the same |
-
1984
- 1984-11-30 JP JP59254484A patent/JPS61130150A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63189868A (en) * | 1987-02-03 | 1988-08-05 | Fuji Photo Film Co Ltd | Image recording method |
JPS6436370U (en) * | 1987-08-25 | 1989-03-06 | ||
US7517077B2 (en) * | 2003-09-02 | 2009-04-14 | Seiko Epson Corporation | Medium transporting device and recording apparatus incorporating with the same |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS61130150A (en) | Cut paper printer | |
JPS5912029A (en) | Device for detecting and preventing multi-feed of paper | |
JPH04261382A (en) | Abnormality detector for motor | |
JPH05208534A (en) | Recorder | |
JP2563515B2 (en) | Paper feeder | |
JPH0428656A (en) | Remaining quantity of recording paper detecting device | |
JPH0592843A (en) | Sheet transport roller replacement timing detecting device for image forming unit | |
JPS582152A (en) | Abnormal sheet transfer detecting method | |
JPH0395051A (en) | Media detecting device | |
JPS6125266B2 (en) | ||
JPH06237333A (en) | Facsimile equipment | |
JPH05294513A (en) | Double feeding detection device for automatic paper sheet feeding device | |
JPH07172600A (en) | Sheet feeding device and image forming device | |
JPH08268618A (en) | Paper inverting mechanism and image forming device using the same | |
JPS6336504B2 (en) | ||
JPH0244293Y2 (en) | ||
JPH06135600A (en) | Pre-paper feeding controller in parallel conveyance | |
JP2858990B2 (en) | Paper sheet retention detector | |
JPH0511525A (en) | Image forming device | |
JPH1020812A (en) | Information display device | |
JPH11334938A (en) | Sheet double feed detecting device | |
JPH0679943B2 (en) | Jam detector | |
JPS6270134A (en) | Thin film material transport device | |
JPH0696301B2 (en) | Printer control circuit | |
JP2531642B2 (en) | Thermal printer |