JPS5855506B2 - Printed paper protection control method for electrophotographic equipment - Google Patents
Printed paper protection control method for electrophotographic equipmentInfo
- Publication number
- JPS5855506B2 JPS5855506B2 JP55012500A JP1250080A JPS5855506B2 JP S5855506 B2 JPS5855506 B2 JP S5855506B2 JP 55012500 A JP55012500 A JP 55012500A JP 1250080 A JP1250080 A JP 1250080A JP S5855506 B2 JPS5855506 B2 JP S5855506B2
- Authority
- JP
- Japan
- Prior art keywords
- paper
- signal
- control method
- heating plate
- 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
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
- G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat
- G03G15/2014—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
- Combination Of More Than One Step In Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Description
【発明の詳細な説明】
本発明は印字定着部に加熱板を用いている電子写真装置
の印字用紙保護の制御方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for controlling the protection of print paper in an electrophotographic apparatus that uses a heating plate in a print fixing section.
レーザビームプリンタ等のいわゆる電子写真方式による
ノンインパクトプリンタにおいては、用紙に印字された
印字を用紙に定着させるために、加熱板およびヒートロ
ーラにて印字を用紙に定着させる方法をとっている。BACKGROUND ART In a so-called electrophotographic non-impact printer such as a laser beam printer, a heating plate and a heat roller are used to fix the print on the paper in order to fix the print on the paper.
まず従来のノンインパクトプリンタの構成と動作の概要
を説明する。First, an overview of the configuration and operation of a conventional non-impact printer will be explained.
第１図において印字指令が連続的に出ている時、用紙送
りのトラクタ１に装填された用紙２は用紙送りのモータ
３の駆動によりトラクタ１を介して送られ印字ドラム４
により印字される。In FIG. 1, when printing commands are issued continuously, the paper 2 loaded on the paper feed tractor 1 is sent via the tractor 1 by the drive of the paper feed motor 3, and is sent to the print drum 4.
Printed by
印字された用紙２は加熱板５の上面を通り加熱され、さ
らにローラ６が印字を用紙２に密着させることにより印
字の定着が完了する。The printed paper 2 passes through the upper surface of the heating plate 5 and is heated, and the roller 6 brings the print into close contact with the paper 2, thereby completing the fixing of the print.
印字指令が停止すると用紙２は印字されたまま加熱板上
で次の印字指令が出るまで停止することとなり、加熱板
の熱により変色を生ずる。When the printing command is stopped, the paper 2 remains printed on the heating plate until the next printing command is issued, causing discoloration due to the heat of the heating plate.
この変色を防止するために加熱板の温度を低く保つこと
は定着性能を著しく低下させる。Keeping the temperature of the heating plate low to prevent this discoloration significantly reduces fixing performance.
又、用紙停止中に加熱板の温度を下げる方法は次の印字
指令が出た時加熱板の温度が上昇するまで印字を持たな
ければならず、装置の効率を低下させることになる。Further, in the method of lowering the temperature of the heating plate while the paper is stopped, printing must be continued until the temperature of the heating plate rises when the next printing command is issued, which reduces the efficiency of the apparatus.
このため装置の性能を低下させることなく用紙の変色を
防止する方法が求められている。Therefore, there is a need for a method of preventing discoloration of paper without reducing the performance of the apparatus.
本発明の目的は上記した装置の性能を低下させることな
（印字された用紙の変色を防止しようとするものである
。An object of the present invention is to prevent discoloration of printed paper without degrading the performance of the above-mentioned apparatus.
本発明は印字された用紙が加熱板上に一定時間停止して
いる時、印字指令が出なくとも強制的に用紙を送ること
により印字された用紙が加熱板上で永く停止して変色す
るのを防止するように工夫したものである。The present invention prevents the printed paper from stopping on the heating plate for a long time and causing discoloration by forcibly feeding the paper even if no printing command is issued when the printed paper is stopped on the heating plate for a certain period of time. It was devised to prevent this.
次に本発明を実施した時の動作を説明する。Next, the operation when implementing the present invention will be explained.
印字指令が連続的に出ている時の動作は従来と同じであ
るが、印字後一定時間以上紙送り動作が停止した場合、
印字済み部分の印字を保護する回路を新たに設けた。The operation when printing commands are issued continuously is the same as before, but if the paper feeding operation stops for a certain period of time after printing,
A new circuit has been installed to protect the printed area.
この動作回路を第２図に示す。（下記に回路の説明をす
る）
印字された連続用紙が一定時間紙送りを停止した場合、
この停止時間を検出するカウンタ１０を設ける。This operating circuit is shown in FIG. (The circuit is explained below) If the printed continuous paper stops feeding for a certain period of time,
A counter 10 is provided to detect this stop time.
カウンタ１０は、クロック信号とＡと装置異常信号Ｂの
ＡＮＤでＡＮＤ２０を開きカウントＵＰするが、紙送り
信号Ｃがある場合はカウン）ＵＰが禁止される。The counter 10 opens the AND 20 by ANDing the clock signal, A, and the device abnormality signal B and increments the count, but if there is a paper feed signal C, the count is prohibited from incrementing.
この禁止条件がなくなればＡＮＤ２０によりカウントを
順次ＵＰすることができ、カウントがｎカウント目（一
定時間）で出力゛１”′となり、この出力信号をインバ
ータ３０で反転し、次段のＦ／Ｆ４０をセットする。If this prohibition condition is eliminated, the count can be sequentially increased by AND20, and at the nth count (certain time), the output becomes "1"', and this output signal is inverted by the inverter 30, and the next stage F/F40 Set.
（但しこのときＦ／Ｆ４０のリセット条件である紙送り
信号Ｃがないときのみセット出来る。(However, this can be set only when there is no paper feed signal C, which is the reset condition for the F/F 40.
）Ｆ／Ｆ４０がセットされたことにより、出力Ｑは前段
のカウンタ１０をリセットし、又出力ＱはＭＳ ５０を
動作する。) By setting the F/F 40, the output Q resets the counter 10 at the previous stage, and the output Q also operates the MS 50.
ＭＳ５０の出力信号によりＦ／Ｆ６０をセットする。Set F/F60 by the output signal of MS50.
（但しＦ／Ｆ ６０のリセット条件である紙送り信号Ｃ
がないときのみセット出来る。(However, the paper feed signal C which is the reset condition for F/F 60
It can be set only when there is no.
） Ｆ／Ｆ ６０の出力Ｑと装置異常信号ＢのＡＮＤで
ＮＡＮＤ７０を開き、モータ駆動信号りを送出する。) The NAND 70 is opened by ANDing the output Q of the F/F 60 and the device abnormality signal B, and a motor drive signal is sent out.
この信号により紙送り用モータ３を駆動し、停止してい
た印字された連続用紙を送る。This signal drives the paper feed motor 3 to feed the stopped continuous paper.
又この信号が１″の間は印字および紙送り回路を抑止す
る。Also, while this signal is 1'', printing and paper feeding circuits are inhibited.
このとき印字終了位置から印字定着器までの紙送りペー
ジ数を制御するカウンタ８０を設げる。At this time, a counter 80 is provided to control the number of paper pages to be fed from the print end position to the print fixing device.
このカウンタ８０は紙送りを制御するページストローブ
信号ＥによりカウントＵＰされ、カウントＵＰ毎にカウ
ンタ８０の出力と用紙長さＬ−Ｉ、’とをＮＡＮＤ９０
〜９σでそれぞれ比較し、一致すればＮＡＮＤ９０〜９
０′のいづれかを開く。This counter 80 is incremented by a page strobe signal E that controls paper feeding, and each time the count increases, the output of the counter 80 and the paper length L-I,' are NANDed together.
Compare each at ~9σ, and if they match, NAND90~9
Open one of 0'.
この出力信号でＮ０Ｒ１００を開き、この出力信号を次
段のインバータ１０１で反転し、Ｆ／Ｆ ６０をリセッ
トする。This output signal opens N0R 100, this output signal is inverted by inverter 101 at the next stage, and F/F 60 is reset.
Ｆ、／Ｆ ６０の出力ＱがＯ″になり、ＮＡＮＤ７０を
閉じる。The output Q of F, /F 60 becomes O'' and the NAND 70 is closed.
このＮＡＮＤ７０が閉じられたことで紙送り用モータ３
が停止し、印字された連続用紙２も停止する。With this NAND 70 closed, the paper feed motor 3
stops, and the printed continuous paper 2 also stops.
又、印字および紙送り回路の抑止条件が解除される。Also, the inhibiting conditions for the printing and paper feeding circuits are canceled.
出力Ｑの信号をインバータ１０２で反転し、この反転信
号でカウンタ８０をリセットする。The signal of the output Q is inverted by the inverter 102, and the counter 80 is reset with this inverted signal.
以上の様な動作を行うが、カウンタ１０のカウントＵＰ
中に紙送り信号Ｃがあった場合、カウンタ１０はクリア
される。The above operation is performed, but the count of counter 10 is increased.
If there is a paper feed signal C in there, the counter 10 is cleared.
又Ｆ／Ｆ ６０がセットされＮＡＮＤ７０が開きモータ
駆動信号りが出ている間は、印字および紙送り信号Ｃを
抑止しており、カウンタ８０の出力信号と用紙長さとの
一致がとれるまで強制的に紙送りを行う。Also, while the F/F 60 is set and the NAND 70 is open and the motor drive signal is output, printing and paper feed signal C are suppressed, and the output signal C is forced until the output signal of the counter 80 matches the paper length. Perform paper feed.
一致すればこの信号でＦ／Ｆ６０をリセットする。If they match, this signal resets the F/F 60.
このとき用紙２は初期停止位置で停止している。At this time, the paper 2 is stopped at the initial stop position.
これにより保護回路の動作が終了し、従来の動作が行わ
れる。This ends the operation of the protection circuit, and the conventional operation is performed.
本発明は上記のように、印字された用紙が加熱板上に、
一定時間以上停止状態にあるとき、加熱板の温度を下げ
ることなく、印字指令の有無にかかわらず強制的に印字
用紙を搬送することにより、定着装置の機能を低下させ
ることな（、用紙の加熱による黄変を防止することがで
きるという優れた効果を有する。In the present invention, as described above, printed paper is placed on a heating plate,
When the printer is stopped for a certain period of time, the printing paper is forcibly conveyed without lowering the temperature of the heating plate, regardless of the presence or absence of a printing command, so that the function of the fixing device is not deteriorated (the heating of the paper It has an excellent effect of preventing yellowing caused by yellowing.
第１図はノンインパクトプリンタの側面図、第２図は動
作回路図を示す。
１・・・・・・トラクタ、２・・・・・・用紙、３・・
・・・・モータ、４・・・・・・印字ドラム、５・・・
・・・加熱板、６・・・・・・ローラ、１０・・・・・
・カウンタ、２０・・・・・・ＡＮＤ、３０・・・・・
・インバータ、４０・・・・・・Ｆ／Ｆ、５０・・・・
・・ＭＳ、６０・・・・・・Ｆ／Ｆ、７０・・・・・・
ＮＡＮＤ、８０・・・・・・カウンタ、９０９σ・・・
・・・ＮＡＮＤ、１００．・・、・、Ｎ０Ｒ１１０１１
０２・・・・・・インバータ。FIG. 1 shows a side view of the non-impact printer, and FIG. 2 shows an operating circuit diagram. 1...Tractor, 2...Paper, 3...
...Motor, 4...Print drum, 5...
...Heating plate, 6...Roller, 10...
・Counter, 20...AND, 30...
・Inverter, 40... F/F, 50...
...MS, 60...F/F, 70...
NAND, 80...Counter, 909σ...
...NAND, 100.・・・、N0R11011
02...Inverter.
Claims (1)
を用紙に密着させるローラからなる印字定着部及び用紙
搬送手段を備え、印字用紙が前記印字定着部に一定時間
停止した時に搬送手段により用紙を所定量強制的に送る
ことを特徴とする電子写真装置の印字用紙保護制御法。1. Equipped with a print fixing section and a paper conveyance means consisting of a heating plate that heats printed continuous paper and rollers that bring the print into close contact with the paper, and when the print paper stops at the print fixation section for a certain period of time, the paper is fixed by the conveyance means. A printing paper protection control method for an electrophotographic device characterized by forcibly feeding a predetermined amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55012500A JPS5855506B2 (en) | 1980-02-06 | 1980-02-06 | Printed paper protection control method for electrophotographic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55012500A JPS5855506B2 (en) | 1980-02-06 | 1980-02-06 | Printed paper protection control method for electrophotographic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56110971A JPS56110971A (en) | 1981-09-02 |
| JPS5855506B2 true JPS5855506B2 (en) | 1983-12-09 |
Family
ID=11807082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55012500A Expired JPS5855506B2 (en) | 1980-02-06 | 1980-02-06 | Printed paper protection control method for electrophotographic equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5855506B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02164303A (en) * | 1988-12-20 | 1990-06-25 | Kijima:Kk | Vibration absorbing shoe sole |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58118283A (en) * | 1982-01-07 | 1983-07-14 | Fujitsu Ltd | Printer |
| JP5884799B2 (en) * | 2013-09-13 | 2016-03-15 | コニカミノルタ株式会社 | Image forming apparatus, image forming system, image forming method, and image forming program |
| JP6256211B2 (en) * | 2014-06-10 | 2018-01-10 | コニカミノルタ株式会社 | Fixing apparatus and image forming apparatus |
| JP6323273B2 (en) * | 2014-09-16 | 2018-05-16 | コニカミノルタ株式会社 | Image forming apparatus, image forming system, and image forming maintenance method |
| JP6372328B2 (en) * | 2014-12-02 | 2018-08-15 | コニカミノルタ株式会社 | Image forming system, image forming apparatus, and control method of image forming apparatus |
| JP6540033B2 (en) * | 2015-01-19 | 2019-07-10 | コニカミノルタ株式会社 | Image forming device |
-
1980
- 1980-02-06 JP JP55012500A patent/JPS5855506B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02164303A (en) * | 1988-12-20 | 1990-06-25 | Kijima:Kk | Vibration absorbing shoe sole |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56110971A (en) | 1981-09-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5972455A (en) | Manuscrip trasfer apparatus and method | |
| JPS5855506B2 (en) | Printed paper protection control method for electrophotographic equipment | |
| JPH08262898A (en) | Recording paper drying preventive mechanism | |
| US4422751A (en) | Original feed control unit | |
| US6466751B2 (en) | Image forming apparatus having a controller for controlling paper feed intervals | |
| GB2283305A (en) | Paper dehumidifying unit for image forming apparatus | |
| US4140894A (en) | Method of using a temperature controller for a fixing device of a copying machine | |
| JP3996149B2 (en) | Thermal printer device | |
| US4782362A (en) | Recording apparatus having a flash fusing apparatus | |
| JP2917029B2 (en) | Printer feeding method | |
| US4978973A (en) | Thermal printer | |
| JPS6484270A (en) | Electrophotographic device | |
| JPS6021070B2 (en) | Double-sided printing method | |
| JPH09127824A (en) | Copying and color vanishing composite machine | |
| JPH068502A (en) | Printer | |
| JPH0630914B2 (en) | Recording paper transport controller | |
| KR100238684B1 (en) | Method for controlling a fused temperature in laser beam printer | |
| JPS61205167A (en) | Control system for paper drive in laser beam printer | |
| JPS5754970A (en) | Controller for copying machine | |
| JPS5714866A (en) | Control device for copying machine | |
| JPH0158073B2 (en) | ||
| JPH0647990A (en) | Method of controlling heating device for erasing image | |
| JPH08314301A (en) | Image forming device and image forming method for image forming device | |
| JP2655620B2 (en) | Printer device | |
| JP2001166669A (en) | Printer |