JPS5887574A - Copying operation controlling method - Google Patents
Copying operation controlling methodInfo
- Publication number
- JPS5887574A JPS5887574A JP56185189A JP18518981A JPS5887574A JP S5887574 A JPS5887574 A JP S5887574A JP 56185189 A JP56185189 A JP 56185189A JP 18518981 A JP18518981 A JP 18518981A JP S5887574 A JPS5887574 A JP S5887574A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- copying
- fixing roller
- sheets
- copying operation
- 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
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
- G03G15/2064—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using contact heat combined with pressure
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Or Security For Electrophotography (AREA)
- Fixing For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は熱ローラを用いて定着を行う桧零様の複写動作
制御方法に係シ、%に連続枚数複写時における熱ローラ
ffi&低下に伴う複写動作休止後の残シ枚数の複写を
行うに好適な複写動作制御方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to Hino's copying operation control method that performs fixing using a heat roller, and the remaining paper after stopping the copying operation due to the decrease in ffi of the heat roller during continuous copying. The present invention relates to a copying operation control method suitable for making multiple copies.
複写機における定着装置として、従来から熱ローラを用
いたものが知られている。この定着装置は、例えば第1
図に示すように、ヒ〜り1を内装した定着ローラ2と、
背面から定着ローラ2に圧着させる加圧ローラ3より構
成されている。転写紙4上のトナー像4Aは、とのロー
ラ2,3間を通過する間に加熱、加圧されて転写紙4に
定着される。2. Description of the Related Art As a fixing device in a copying machine, a fixing device using a heat roller has been known. This fixing device, for example,
As shown in the figure, a fixing roller 2 with a heater 1 installed therein,
It is composed of a pressure roller 3 that is pressed against the fixing roller 2 from the back side. The toner image 4A on the transfer paper 4 is heated and pressed while passing between the rollers 2 and 3, and is fixed on the transfer paper 4.
このような熱ローラを具備した被写機において、連続し
て複数枚の複写動作を行わせると、定着ローラ2の温度
Tは第2図に示すように低下し、やがては定着不能とな
る。When a copying machine equipped with such a heat roller continuously copies a plurality of sheets, the temperature T of the fixing roller 2 decreases as shown in FIG. 2, and eventually fixing becomes impossible.
これを防止するには、ヒータ1に加える電力を増大させ
れば良い八そうすると被写機全体の消費電力が増大して
一般家庭電源が使用できなくなる。To prevent this, the power applied to the heater 1 can be increased. If this happens, the power consumption of the entire photographing device will increase, making it impossible to use a general household power supply.
そこで従来は、定着ローラ2にmk検出器5を設け、第
2図に示すように、定着ローラ2の温度Tが予め定めた
下限i度TdJJ下に低下した場合、複写動作を一時停
止し、定着ローラ2の温度Tが再び上限温度Tu以上に
庁ったとき、複写動作を再開させていた。Therefore, conventionally, an mk detector 5 is provided on the fixing roller 2, and as shown in FIG. When the temperature T of the fixing roller 2 again rose above the upper limit temperature Tu, the copying operation was restarted.
しかしながら、上記従来方法では、残り転写紙枚数が1
枚の場合でも、定着ローラ2の懸腋か上限温度Tuにな
るまでは複写動作を再開することができず、休止時間が
不必要に長びく上、無駄に電力を消費する欠点があった
。However, in the above conventional method, the number of remaining transfer sheets is 1.
Even in the case of a single copy, the copying operation cannot be restarted until the temperature at the armpit of the fixing roller 2 reaches the upper limit temperature Tu, which has the disadvantage of unnecessarily prolonging the downtime and wasting power.
本発明は、休止時間の短縮と、消費電力の低減を計り、
連続枚数複写時、複写機を効率良く動作させることので
きる複写動作制御方法を提供することを目的とする。The present invention aims to shorten downtime and reduce power consumption,
It is an object of the present invention to provide a copying operation control method that can efficiently operate a copying machine when making continuous copies.
この目的を達成するため、本発明は、休止後の複写動作
を熱ローラ温度が残多枚数分を定着できる温度にまで向
傷したとき、複写動作を自動的に再開させるようにした
ことを特徴とする。In order to achieve this object, the present invention is characterized in that the copying operation is automatically restarted after the copying operation is stopped when the temperature of the heat roller reaches a temperature that can fix the remaining number of sheets. shall be.
以下、本発明の実施例を図を参照して説明する。Embodiments of the present invention will be described below with reference to the drawings.
第3図は本発明の一実施例に係る複写動作制御方法を説
明するための複写機の要部構成図を示したもので、図中
、第1図と同一符号は同−又は相当部分を示し、6は0
変換器、7はCPU (マイクロデロセ、す)、8は機
械制御装置(MC)である。FIG. 3 shows a main part configuration diagram of a copying machine for explaining a copying operation control method according to an embodiment of the present invention. In the figure, the same reference numerals as in FIG. 1 indicate the same or corresponding parts. 6 is 0
Converter, 7 is a CPU (microcontroller), and 8 is a machine control device (MC).
上記構成で、図示せぬメインスイッチを介して複写機に
電源を投入すると、CPU 7の制御の下に機械制御装
置8が働き、ヒータ1が発熱し、定着ローラ2の温度T
が上昇する。温度検出器5は定着ローラ2の温度Tを検
出し、A/D変換器6に入力する。L1変換器6はその
検出価をディゾタル値に変換してCPU 7に入力する
。このディゾタル値に基づきCPU 7は、定着ローラ
2の温度Tを監視し、第4図に示すように温度Tが上限
温度Tu以上になったとき、機械制御装置8に指令を送
り複写動作を許容する。従って、このとき図示せぬグリ
ント釦を押せば、妙写動作が開始される。With the above configuration, when the power is turned on to the copying machine via the main switch (not shown), the machine control device 8 operates under the control of the CPU 7, the heater 1 generates heat, and the temperature of the fixing roller 2 rises to T.
rises. Temperature detector 5 detects temperature T of fixing roller 2 and inputs it to A/D converter 6 . The L1 converter 6 converts the detected value into a digital value and inputs it to the CPU 7. Based on this dizotal value, the CPU 7 monitors the temperature T of the fixing roller 2, and when the temperature T exceeds the upper limit temperature Tu as shown in FIG. 4, it sends a command to the machine control device 8 to permit the copying operation. do. Therefore, if the glint button (not shown) is pressed at this time, the fine copying operation will be started.
前述したように、連続して僚数枚を複写する場合、複写
動作に伴って定着ローラ2のii[Tは徐徐に低下する
。CPU 7はその温度Tを監視し、やがて下限温度T
dにまで下ったとき、機械制御装置8に指令を送シ、複
写動作を一旦休止する。同時に、CPU 7は残り枚数
を計算し、その分の定着に必要な定着ローラ2の温度T
αを求める。As described above, when several copies are made in succession, ii[T of the fixing roller 2 gradually decreases with the copying operation. The CPU 7 monitors the temperature T, and eventually reaches the lower limit temperature T.
When the number reaches d, a command is sent to the machine control device 8 to temporarily stop the copying operation. At the same time, the CPU 7 calculates the number of remaining sheets and adjusts the temperature T of the fixing roller 2 necessary for fixing that amount.
Find α.
即ち、定着ローラ2の1lfTと定着可能な転写紙4の
枚数Pとの間には、ヒータ1の発熱効率、定着ロー22
の蓄熱効率、転写紙4のサイズ、通過速度、間隙等によ
シー確約に決まる一定の関係が成)立つ。そこで、本実
施例においては、その関係に基づき、残り転写紙枚数P
からその分を定着するに必要なローラ温度Tαを求める
ための計算式あるいは実験結果より得られる各転写紙サ
イを毎の転写紙枚数Pとローラ温度Taの対照表を予め
所定のメモリに記憶させておく。これにより、CPU
7’は複写動作が休止状態に入ったとき、そのメモリを
参照することにより、残シ複写枚数からその分を定着す
るに必要な定着ローラ2の温度Tαを直ちに導き出すこ
とができる。That is, between 1lfT of the fixing roller 2 and the number P of transfer paper 4 that can be fixed, there are differences between the heat generation efficiency of the heater 1 and the fixing roller 22.
A certain relationship determined by the heat storage efficiency, the size of the transfer paper 4, the passing speed, the gap, etc. is established. Therefore, in this embodiment, based on this relationship, the number of remaining transfer sheets P
A comparison table of the number of transfer paper sheets P and the roller temperature Ta for each transfer paper size obtained from a calculation formula or experimental results to determine the roller temperature Tα necessary for fixing that amount from the above is stored in a predetermined memory in advance. I'll keep it. This allows the CPU
When the copying operation enters a pause state, 7' can immediately derive the temperature Tα of the fixing roller 2 required to fix the remaining number of copies by referring to the memory.
一方、休止期間中もヒータ1は発熱を続けているので、
定着ローラ2の温度Tは上昇する。やがて、その温度T
が上記求めた温[Tαに達し九とき、CPU 7は機械
制御装[8に指令を送り複写動作を自動的に再開させる
。On the other hand, since heater 1 continues to generate heat even during the rest period,
The temperature T of the fixing roller 2 increases. Eventually, the temperature T
When the temperature reaches the above-determined temperature [Tα], the CPU 7 sends a command to the machine control unit [8 to automatically restart the copying operation.
このようにして、複写機の休止後における複写動作の開
始時期を制御することによシ、休止時間および定着ロー
ラ2の加熱時間は残シ複写枚数を定着するに必要な時間
だけとなり、残り初耳枚数が少ない場合には待ち時間が
短くなる上、無駄に電力を消費することもなくなる。着
た、複写動作の再開は自動的に行われることから、オシ
レータは他の仕事に専念でき、事務効率も大巾に改善さ
れる。In this way, by controlling the start time of the copying operation after the copying machine has stopped, the rest time and the heating time of the fixing roller 2 are reduced to the time necessary to fix the number of remaining copies, and the number of remaining copies is reduced. When the number of sheets is small, the waiting time is shortened and power is not wasted. Since the restart of the copying operation is performed automatically, the oscillator can concentrate on other tasks, and office efficiency is greatly improved.
以上のように本発明によれば、連続枚数複写時の休止時
間が短縮される上、無駄な電力消費がなくなり、複写機
を効率よく動作させることができるようになる。As described above, according to the present invention, the downtime during continuous copying is shortened, unnecessary power consumption is eliminated, and the copying machine can be operated efficiently.
第1図は熱ローラ定着装置の説明図、第2図は連続枚数
複写時のローラ温度対転写紙枚数および時間の関係図、
第3図は本発明の一実施例を欽明するための複写機要部
構成図、第4図はその動作を説明するためのローラ温度
対転写紙枚数および時間の関係図である。
1・・・ヒータ、2・・・定着ローラ、3・・・加圧ロ
ーラ、4・・・転写紙、4A・・・トナー儂、5・・・
温度検出器、6・・・l変換器、7・・・CPU、8−
・・機械制御装置。
第1図
2
第3図
第4図
筏数□FIG. 1 is an explanatory diagram of the heat roller fixing device, and FIG. 2 is a diagram of the relationship between roller temperature and number of transfer sheets and time during continuous copying.
FIG. 3 is a diagram showing the main parts of a copying machine to explain an embodiment of the present invention, and FIG. 4 is a diagram showing the relationship between roller temperature, number of sheets of transferred paper, and time to explain its operation. 1... Heater, 2... Fixing roller, 3... Pressure roller, 4... Transfer paper, 4A... Toner me, 5...
Temperature detector, 6... l converter, 7... CPU, 8-
... Machine control device. Figure 1 Figure 2 Figure 4 Figure 4 Number of rafts □
Claims (1)
の複写動作制御方法において、前記熱ローラal&が予
め定めらn走下限温度に達したとき、複写動作を停止さ
せる一方、熱ローラ温度と定着可能枚数との関係から残
り枚数の定着に必要な熱ローラ温度を求め、前記熱ロー
ラ温度がその温度に回復したとき、休止後の複写動作を
自動的に再開させることを特徴とする複写動作制御方法
。In a copying operation control method during continuous copying in a copying machine that performs fixing using a heat roller, when the heat roller al& reaches a predetermined n travel lower limit temperature, the copying operation is stopped, and the heat roller temperature is The heat roller temperature necessary for fixing the remaining number of sheets is determined from the relationship between the number of sheets and the number of sheets that can be fixed, and when the temperature of the heat roller recovers to that temperature, the copying operation after the pause is automatically restarted. Operation control method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56185189A JPS5887574A (en) | 1981-11-20 | 1981-11-20 | Copying operation controlling method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56185189A JPS5887574A (en) | 1981-11-20 | 1981-11-20 | Copying operation controlling method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5887574A true JPS5887574A (en) | 1983-05-25 |
JPH0326395B2 JPH0326395B2 (en) | 1991-04-10 |
Family
ID=16166405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56185189A Granted JPS5887574A (en) | 1981-11-20 | 1981-11-20 | Copying operation controlling method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5887574A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5331384A (en) * | 1989-01-25 | 1994-07-19 | Canon Kabushiki Kaisha | Fixing apparatus having temperature controller which controls temperature according to width size and number of recording sheets |
US6552304B1 (en) | 1998-05-20 | 2003-04-22 | Fujitsu Limited | Temperature control method and system for thermal fixing unit, and image forming apparatus |
US20150037055A1 (en) * | 2012-04-27 | 2015-02-05 | Canon Kabushiki Kaisha | Image forming apparatus |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52127341A (en) * | 1976-04-19 | 1977-10-25 | Canon Inc | Fixing device for copying machne for electronic photography |
JPS5480135A (en) * | 1977-12-09 | 1979-06-26 | Fuji Xerox Co Ltd | Method of controlling temperature of fixing unit for copying machine |
JPS5692558A (en) * | 1979-12-27 | 1981-07-27 | Toshiba Corp | Copying machine |
-
1981
- 1981-11-20 JP JP56185189A patent/JPS5887574A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52127341A (en) * | 1976-04-19 | 1977-10-25 | Canon Inc | Fixing device for copying machne for electronic photography |
JPS5480135A (en) * | 1977-12-09 | 1979-06-26 | Fuji Xerox Co Ltd | Method of controlling temperature of fixing unit for copying machine |
JPS5692558A (en) * | 1979-12-27 | 1981-07-27 | Toshiba Corp | Copying machine |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5331384A (en) * | 1989-01-25 | 1994-07-19 | Canon Kabushiki Kaisha | Fixing apparatus having temperature controller which controls temperature according to width size and number of recording sheets |
US6552304B1 (en) | 1998-05-20 | 2003-04-22 | Fujitsu Limited | Temperature control method and system for thermal fixing unit, and image forming apparatus |
US20150037055A1 (en) * | 2012-04-27 | 2015-02-05 | Canon Kabushiki Kaisha | Image forming apparatus |
US9459566B2 (en) | 2012-04-27 | 2016-10-04 | Canon Kabushiki Kaisha | Image forming apparatus controlling the operation speed of each of an image forming portion and a fixing portion thereof when an image formation process is continuously performed for a plurality of sheets |
Also Published As
Publication number | Publication date |
---|---|
JPH0326395B2 (en) | 1991-04-10 |
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