JPS60191279A - Control method of copying machine - Google Patents

Control method of copying machine

Info

Publication number
JPS60191279A
JPS60191279A JP59047680A JP4768084A JPS60191279A JP S60191279 A JPS60191279 A JP S60191279A JP 59047680 A JP59047680 A JP 59047680A JP 4768084 A JP4768084 A JP 4768084A JP S60191279 A JPS60191279 A JP S60191279A
Authority
JP
Japan
Prior art keywords
fixing
fixing device
copying machine
power
time
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
Application number
JP59047680A
Other languages
Japanese (ja)
Inventor
Takayuki Tanabe
田辺 隆之
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP59047680A priority Critical patent/JPS60191279A/en
Publication of JPS60191279A publication Critical patent/JPS60191279A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/20Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fixing For Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To supply sufficient electric power to a copying machine driving system at a start and to perform secure starting operation with a small driving system by interrupting power supply to a fixing device which attains to fixation temperature temporarily at every copy start. CONSTITUTION:When a copy start button 15 is turned on at every copy start, a CPU9 controls a fuser driving part 8 and the power supply from a power source 11 to the heat source 3 of the fixing device 1 which is heated to the fixation temperature is interrupted through a relay 10 for a specific time counted by a timer circuit 16. Therefore, respective driving systems of the copying machine are supplied with sufficient electric power and even when a small driving system is used, secure starting operation is carried out.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は複写機の制御方法に関し、特に少ない消費電
力で確実なコピースタートを可能にした複写機の制御方
法に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for controlling a copying machine, and particularly to a method for controlling a copying machine that enables a reliable start of copying with low power consumption.

〔従来技術〕[Prior art]

周知のように、複写工程における定着工程は、感光体よ
り用紙に転写されたトナー像を用紙に定着させる工程で
あり、通常定着装置には熱ローラ方式などの加熱融着接
触型、または赤外ヒータ方式、オーブン方式などの加熱
融着非接触形等、熱を利用したものが多く用いられてい
る。
As is well known, the fixing step in the copying process is the process of fixing the toner image transferred from the photoreceptor onto the paper, and the fixing device is usually a heat fusion contact type such as a heat roller method, or an infrared fixing device. Many methods that utilize heat are used, such as non-contact heat-sealing methods such as heater methods and oven methods.

このような加熱方式を利用した定着装置を用いた複写機
では、いずれも熱効率の悪さから、定着工程での消費電
力は非常に大きく、機械全体の消費電力の50〜70%
が占められる。第1図(a)および[有]爪それぞれ電
源消費電流と時間との関係および熱ローラ方式を用いた
定着装置の定着温度と時間との関係を示す。第1図(a
)および(b)において、toは電源投入時、11はウ
オーミングアツプ終了時、t2はコピースタートボタン
投入時をそれぞれ示している。
Copying machines that use a fixing device that uses this type of heating method consume a very large amount of power in the fixing process due to poor thermal efficiency, accounting for 50 to 70% of the power consumption of the entire machine.
is occupied. FIG. 1A shows the relationship between power consumption current and time, and the relationship between fixing temperature and time of a fixing device using a heat roller method, respectively. Figure 1 (a
) and (b), to indicates when the power is turned on, 11 indicates the end of warming up, and t2 indicates the time when the copy start button is pressed.

第1図(b)に示すように、定着装置の定着温度は電源
投入後所定の定着温度T(熱ロー2方式では190℃前
後)までウオーミングアツプされ、その後は通常自動温
度調整装置により該所定温度Tに保持されるようになっ
ている。
As shown in FIG. 1(b), after the power is turned on, the fixing temperature of the fixing device is warmed up to a predetermined fixing temperature T (approximately 190 degrees Celsius in the heat roller 2 method), and then an automatic temperature adjustment device normally sets the fixing temperature to the predetermined fixing temperature T. The temperature is maintained at T.

次に、複写機に供給される電流であるが、これは第1図
(a)に示すように、定着装置以外の光学系、用紙搬送
系などが駆動を開始するコピースタート時t2に急激に
立上がる。このため、このコピースタート時にメインモ
ータ等の駆動装置に十分な電力が供給できないときがあ
り、極端な場合起動不可能という不足事態が起こること
もあった。このため、従来は起動力の大きな駆動装置を
用いることで上記事態に対処するようにしていた。
Next, the current supplied to the copying machine is as shown in Fig. 1(a), which suddenly increases at the copy start time t2 when the optical system other than the fixing device, the paper conveyance system, etc. start driving. stand up For this reason, there are times when sufficient power cannot be supplied to the drive device such as the main motor at the time of copy start, and in extreme cases, a shortage situation may occur in which startup is impossible. For this reason, conventionally, the above-mentioned situation has been dealt with by using a drive device with a large starting force.

しかし、起動力の大きな駆動装置は一般に高価であり、
このような駆動装置を用いることは複写装置自体のコス
トアップにもつながる。
However, drive devices with large starting force are generally expensive;
Using such a drive device also increases the cost of the copying device itself.

〔発明の目的〕[Purpose of the invention]

この発明は上記実情に鑑みてなされたものであり、コピ
ースタート時に駆動系に対して十分な電力が供給できる
ようにして、起動力の小さな駆動系でも確実なスタート
動作を実行し得るようにした複写機の制御方法を提供す
ることを目的とする。
This invention was made in view of the above-mentioned circumstances, and it is possible to supply sufficient power to the drive system at the time of copy start, so that even a drive system with a small starting force can perform a reliable start operation. The purpose of this invention is to provide a method for controlling a copying machine.

し発明の概要〕 この発明では、定着装置がウオーミングアツプを終了し
た後は、毎コピースタート時に定着装置の加熱部に対す
る給電を中断し、その後設定した所定の時間が経過した
後に、前記加熱部に対する給電を再開するようにして上
記目的を達成する。
[Summary of the Invention] In the present invention, after the fixing device finishes warming up, power supply to the heating section of the fixing device is interrupted at the start of every copy, and after a predetermined time period has elapsed, power supply to the heating section is stopped. The above objective is achieved by restarting power supply.

上記給電を中断する所定時間は定着性に影響を及ぼさな
い適宜時間例えば500m5ec程度の時間に予設定さ
れる。
The predetermined time for interrupting the power supply is preset to an appropriate time that does not affect fixing performance, for example, about 500 m5ec.

(発明の効果〕 したがって、この発明にかかる複写機の制御方法によれ
ば、電力消費が激しく起動不可能の可能性があるコピー
スタート時に消費電力の半分以上を使用する定着装置の
加熱部に対する電力供給を定着性を損うことのない所定
時間中断するようにしたことから、駆動系に対しては十
分な電力供給がなされ、起動力の小さな駆動系でも確実
なコピースタート動作を実行し得るようになり、また節
電にもなる。さらに起動力の小さな駆動系を用いても確
実なスタート動作を実行し得ることにより、複写機自体
の低コスト化にも寄与する。
(Effects of the Invention) Therefore, according to the control method for a copying machine according to the present invention, power is supplied to the heating section of the fixing device, which uses more than half of the power consumption at the time of copy start, which consumes a lot of power and may not be able to start. Since the supply is interrupted for a predetermined period of time without impairing fixing performance, sufficient power is supplied to the drive system, making it possible to perform a reliable copy start operation even with a drive system with a small starting force. Furthermore, even if a drive system with a small starting force is used, a reliable starting operation can be performed, which contributes to lowering the cost of the copying machine itself.

〔実施例〕〔Example〕

第2図1ここの発明にかかる複写機の制御方法を実施す
るための構成例を示す。
FIG. 2 shows an example of a configuration for carrying out the copying machine control method according to the present invention.

第2図において、定着装置1は熱ローラ方式のものであ
り、定着ローラ2には熱源3が内蔵されており、該定着
ローラ2と加圧ローラ4との間をトナー像5を保持した
用紙6が通過することにより定着ローラ2の表面から直
接熱が伝えられ、加圧ローラ4の圧力が作用して定着が
行われる。定着ローラ2には温度センサ7が設けられて
おり、該温度センサ7の検出出力はフユーザ駆動部8に
出力される。フユーザ駆動部8はCPU9の制御を受け
ており、温度センサ7の検出出力を所定の周期でサンプ
リングし、該サンプリングした検出値に基づきリレー1
0をオンまたはオフすることにより電源11から熱源3
に対して供給される電力を断続することによって定着温
度を所定の温度(例えば190°0)に保持する。電源
11からの供給電力は勿論定着装置1ばかりでなく、他
にモータ12、用紙搬送系駆動装置13、光学系駆動装
置14など複写機内の各種所要機構にも供給される。次
に、15はコピースタートボタンであり、扱者によって
コピースタート所望時に投入される。
In FIG. 2, the fixing device 1 is of a heat roller type, and the fixing roller 2 has a built-in heat source 3, and a sheet holding a toner image 5 is passed between the fixing roller 2 and the pressure roller 4. 6 passes therethrough, heat is directly transferred from the surface of the fixing roller 2, and the pressure of the pressure roller 4 acts to perform fixing. The fixing roller 2 is provided with a temperature sensor 7, and the detection output of the temperature sensor 7 is output to the user drive unit 8. The user drive section 8 is under the control of the CPU 9, samples the detection output of the temperature sensor 7 at a predetermined period, and controls the relay 1 based on the sampled detection value.
0 from the power source 11 by turning on or off the heat source 3
The fixing temperature is maintained at a predetermined temperature (for example, 190° 0) by intermittent power supplied to the fixing temperature. The power supplied from the power source 11 is of course supplied not only to the fixing device 1 but also to various other necessary mechanisms within the copying machine, such as the motor 12, the paper conveyance system drive device 13, and the optical system drive device 14. Next, 15 is a copy start button, which is pressed when the operator desires to start copying.

タイマ回路16はコピースタート時にCPU9によって
始動され、所定の遅延時間を計時すると、該計時終了を
CPU9に報告する。
The timer circuit 16 is started by the CPU 9 at the start of copying, and when a predetermined delay time has been counted, it reports to the CPU 9 that the time has ended.

かかる構成例の具体的動作を第3図に示すタイムチャー
トを参照して詳述する。第3図中(a)はコピースター
トボタン15の投入信号であり、Φ)はリレー10のス
イッチング信号であり、(C)はモータ12の駆動信号
である。
The specific operation of this configuration example will be described in detail with reference to the time chart shown in FIG. In FIG. 3, (a) is an input signal for the copy start button 15, Φ) is a switching signal for the relay 10, and (C) is a drive signal for the motor 12.

電源スィッチ(図示せず)が投入されると、定着装置1
の熱源3に対して電源11からの電力が供給され定着装
置1の定着ローラ2は所定の定着温度(190℃前後)
までウオームアツプされ、その後温度センサ7、フユー
ザ駆動部8詔よびリレー10から成る自動温度調整装置
により前記定着温度に保持される。
When the power switch (not shown) is turned on, the fixing device 1
Electric power is supplied from the power supply 11 to the heat source 3 of the fixing device 1, and the fixing roller 2 of the fixing device 1 is maintained at a predetermined fixing temperature (around 190°C).
After that, an automatic temperature adjustment device comprising a temperature sensor 7, a user drive unit 8, and a relay 10 maintains the fixing temperature.

時刻t。にコピースタートボタン15が投入されると、
CPU9はこれを検出し、モータ12を駆動することに
より、用紙搬送系駆動装置13、光学系駆動装置14な
ど複写機内の所要機構を始動するとともに、タイマ回路
16を始動し、さらにフユーザ駆動部8に対して熱源オ
フ信号を出力する。該信号を受入したフユーザ駆動部8
は直ちにリレー10を強制的にオフにする。
Time t. When the copy start button 15 is pressed,
The CPU 9 detects this and drives the motor 12 to start the necessary mechanisms in the copying machine such as the paper conveyance system drive device 13 and the optical system drive device 14, and also starts the timer circuit 16, and further starts the user drive section 8. Outputs a heat source off signal to the User drive unit 8 that received the signal
immediately forces relay 10 off.

なお、第3図(b)ではこの時点to以前にリレー10
はオン状態にあるように示したが、定着ローラ2の温度
状態によってリレー10がオフ状態にあるように自動制
御されている可能性もあり得る。
In addition, in FIG. 3(b), relay 10 is
Although shown as being in the on state, it is possible that the relay 10 is automatically controlled to be in the off state depending on the temperature state of the fixing roller 2.

上記リレー10の強制的なオフにより電源11から定着
装置1の熱源3に対する電力供給は中断されるが勿論こ
の時点toまでに定着装置1は所定の定着温度(190
°C)で動作すべく自動制御されている。
By forcibly turning off the relay 10, the power supply from the power supply 11 to the heat source 3 of the fixing device 1 is interrupted, but of course by this time point the fixing device 1 has reached a predetermined fixing temperature (190
It is automatically controlled to operate at temperatures (°C).

CPU9によって始動されたタイマ回路16は所定の遅
延時間(500m sec程度)を計時し、該計時が終
了した時点で計時終了信号をCPU9に送出する。該計
時終了信号をタイマ回路16から受入したCPU9は時
刻11にフユーザ駆動部8に対して熱源オフ解除信号を
出力する。この解除信号を受入したフユーザ駆動部8で
は直ちにリレー10を再びオンすることによって電源1
1からの供給電力を再び定着装置1の熱源3に供給する
The timer circuit 16 started by the CPU 9 measures a predetermined delay time (approximately 500 msec), and sends a timing end signal to the CPU 9 when the timing ends. The CPU 9 receives the time measurement end signal from the timer circuit 16 and outputs a heat source OFF release signal to the user drive section 8 at time 11. Upon receiving this release signal, the user drive section 8 immediately turns on the relay 10 again, thereby turning on the power source 1.
The power supplied from 1 is again supplied to the heat source 3 of the fixing device 1.

この後、定着装置1は温度センサ7、フユーザ駆動部8
およびリレー10から成る自動温度調整装置の制御ζこ
よって所定の定着温度に保持された状態で時刻t2にお
いて所定の定着動作を行う。
After that, the fixing device 1 includes a temperature sensor 7 and a fuser drive unit 8.
Control ζ of an automatic temperature adjustment device consisting of relay 10 and relay 10 thus performs a predetermined fixing operation at time t2 while maintaining a predetermined fixing temperature.

上述した動作をコピースタート時に毎回実行する。コピ
一枚数が1枚で設定されたときには、コピースタートボ
タン15が投入される度に上述した動作を実行すればよ
いが、複数のコピ一枚数が設定されたときはコピースタ
ートボタン15は1度しか投入されない。このような場
合においても各コピースタート時を例えば光学系駆動装
置の各駆動開始時刻などにより検出し、1枚のコピーに
ついて各1回ずつ上述した動作を実行する。
The above-mentioned operation is executed every time a copy is started. When the number of copies per copy is set to one, the above-mentioned operation may be executed every time the copy start button 15 is pressed, but when multiple copies per copy are set, the copy start button 15 is pressed only once. only. Even in such a case, each copy start time is detected by, for example, each drive start time of the optical system drive device, and the above-described operation is executed once for each copy.

このように、本実施例では、電力消費の激しい各コピー
スタート時に消費電力の半分以上を使用する定着装置1
の熱源3に対して電力供給を所定時間中断するようにし
たことから、他のモータ12等に対して十分な電力が供
給されるようになり、起動力の小さなモータでも起動不
可能といったような不足事態を起こすことなく確実なコ
ピースタートをなし得るようになる。勿論、定着装置1
に対する電力供給を例えば5QQmsec程中断すると
いっても、この程度の時間の中断では定着性に悪影響を
及ぼすといったことはない。
As described above, in this embodiment, the fixing device 1 uses more than half of the power consumption at the start of each copy, which consumes a lot of power.
By interrupting the power supply to the heat source 3 for a predetermined period of time, sufficient power is supplied to the other motors 12, etc., so that even motors with small starting force cannot be started. A reliable copy start can be performed without causing a shortage situation. Of course, the fixing device 1
Even if the power supply to the printer is interrupted for, for example, 5QQmsec, the interruption for this amount of time will not adversely affect the fixing performance.

なお、上記実施例では、自動温度調整装置内に具えられ
ているリレー10をCPU9の指令により強制的にオフ
とすることによって電源11から定着装置1の熱源3に
供給される電力を中断するようにしたが、新たに別のス
イッチング回路を設は該スイッチング回路をCPU9が
直接制御することにより、定着装置1の熱源3に対する
給電を中断するようにしてもよい。
In the above embodiment, the power supplied from the power source 11 to the heat source 3 of the fixing device 1 is interrupted by forcibly turning off the relay 10 provided in the automatic temperature adjustment device by a command from the CPU 9. However, if another switching circuit is newly provided and the CPU 9 directly controls the switching circuit, the power supply to the heat source 3 of the fixing device 1 may be interrupted.

また、上記実施例では単一熱源内蔵式の熱ローラ定着装
置を用いた複写機に本発明を適用したが、熱ローラ定着
装置には熱源を外部に設けたもの、また加圧ローラ内部
にも設けたダブルヒータ式のものもあり、これら方式を
用いた複写機に本発明を適用してもよいことは勿論であ
る。さらに、熱定着方式はこの他に赤外ヒータ一方式、
オーブン方式などの非接触型のものもあり、これら非接
触型の定着装置を用いた複写機に本発明を適用してもよ
い。
In addition, in the above embodiment, the present invention was applied to a copying machine that uses a heat roller fixing device with a built-in single heat source, but the heat roller fixing device may have a heat source provided externally, or may have a heat source installed inside the pressure roller. There are also double heater type copying machines, and it goes without saying that the present invention may be applied to copying machines using these types. In addition, there are other heat fixing methods such as one-way infrared heater,
There are also non-contact types such as oven type fixing devices, and the present invention may be applied to copying machines using these non-contact type fixing devices.

【図面の簡単な説明】[Brief explanation of drawings]

第1図(a)および(b)はそれぞれ一般的な複写機に
おける電源供給電流および定着温度の経時変化を示すグ
ラフ、第2図はこの発明の方法を実施するための構成例
を示す概念図、第3図は同構成例の動作例を説明するた
めのタイムチャートである。
FIGS. 1(a) and (b) are graphs showing changes in power supply current and fixing temperature over time in a general copying machine, respectively, and FIG. 2 is a conceptual diagram showing an example of a configuration for carrying out the method of the present invention. , FIG. 3 is a time chart for explaining an example of the operation of the same configuration example.

Claims (1)

【特許請求の範囲】[Claims] 加熱方式を用いた定着装置を有する複写機の制御方法に
おいて、前記定着装置が所定の定着温度まで昇温した後
は、毎コピースタート時に、前記定着装置の加熱部に対
する給電を中断し、その後設定した所定時間が経過した
後前記加熱部に対する給電を再開するようにしたことを
特徴とする複写機の制御方法。
In a method for controlling a copying machine having a fixing device using a heating method, after the temperature of the fixing device has risen to a predetermined fixing temperature, power supply to the heating section of the fixing device is interrupted at the start of every copy, and then the setting is A method for controlling a copying machine, characterized in that power supply to the heating section is restarted after a predetermined period of time has elapsed.
JP59047680A 1984-03-13 1984-03-13 Control method of copying machine Pending JPS60191279A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59047680A JPS60191279A (en) 1984-03-13 1984-03-13 Control method of copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59047680A JPS60191279A (en) 1984-03-13 1984-03-13 Control method of copying machine

Publications (1)

Publication Number Publication Date
JPS60191279A true JPS60191279A (en) 1985-09-28

Family

ID=12781992

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59047680A Pending JPS60191279A (en) 1984-03-13 1984-03-13 Control method of copying machine

Country Status (1)

Country Link
JP (1) JPS60191279A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6388855U (en) * 1986-11-28 1988-06-09

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5579477A (en) * 1978-12-13 1980-06-14 Ricoh Co Ltd Fixing device of copying machine
JPS5627181A (en) * 1979-08-10 1981-03-16 Ricoh Co Ltd Fixing temperature control unit
JPS56146155A (en) * 1980-04-15 1981-11-13 Mita Ind Co Ltd Electrostatic copying machine
JPS5746256A (en) * 1980-09-03 1982-03-16 Canon Inc Copying machine
JPS5764271A (en) * 1980-10-06 1982-04-19 Toshiba Corp Copying machine
JPS57124362A (en) * 1981-01-26 1982-08-03 Ricoh Co Ltd Electronic photographic copy machine
JPS57207263A (en) * 1981-06-15 1982-12-18 Canon Inc Controller for copying machine
JPS58134655A (en) * 1982-02-05 1983-08-10 Ricoh Co Ltd Power controlling device of copying device
JPS5932376A (en) * 1982-08-17 1984-02-21 Canon Inc Former for image

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5579477A (en) * 1978-12-13 1980-06-14 Ricoh Co Ltd Fixing device of copying machine
JPS5627181A (en) * 1979-08-10 1981-03-16 Ricoh Co Ltd Fixing temperature control unit
JPS56146155A (en) * 1980-04-15 1981-11-13 Mita Ind Co Ltd Electrostatic copying machine
JPS5746256A (en) * 1980-09-03 1982-03-16 Canon Inc Copying machine
JPS5764271A (en) * 1980-10-06 1982-04-19 Toshiba Corp Copying machine
JPS57124362A (en) * 1981-01-26 1982-08-03 Ricoh Co Ltd Electronic photographic copy machine
JPS57207263A (en) * 1981-06-15 1982-12-18 Canon Inc Controller for copying machine
JPS58134655A (en) * 1982-02-05 1983-08-10 Ricoh Co Ltd Power controlling device of copying device
JPS5932376A (en) * 1982-08-17 1984-02-21 Canon Inc Former for image

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6388855U (en) * 1986-11-28 1988-06-09

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