JPH042950B2 - - Google Patents
Info
- Publication number
- JPH042950B2 JPH042950B2 JP59278291A JP27829184A JPH042950B2 JP H042950 B2 JPH042950 B2 JP H042950B2 JP 59278291 A JP59278291 A JP 59278291A JP 27829184 A JP27829184 A JP 27829184A JP H042950 B2 JPH042950 B2 JP H042950B2
- Authority
- JP
- Japan
- Prior art keywords
- charging
- flash
- printing
- capacitor
- devices
- 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 - Lifetime
Links
- 239000003990 capacitor Substances 0.000 claims description 19
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
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
- G03G15/2007—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using radiant heat, e.g. infrared lamps, microwave heaters
- G03G15/201—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat using radiant heat, e.g. infrared lamps, microwave heaters of high intensity and short duration, i.e. flash fusing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fixing For Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
- Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
- Control Of Voltage And Current In General (AREA)
- Generation Of Surge Voltage And Current (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、電子写真方式等の印刷装置を複数備
えたシステムにおいて、１つの電源から各印刷装
置のフラツシユ定着器に充電電流を供給する印刷
システムに関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a printing system in which a charging current is supplied from one power source to a flash fixing device of each printing device in a system including a plurality of printing devices such as electrophotographic printing devices. Regarding the system.
電子写真等の静電潜像を形成し、現像によつて
可視像を得る複写機や記録装置においては、現像
剤によつて現像されたものを加熱して定着するこ
とが行われている。このような加熱定着を行う定
着器として高速の定着が可能なフラツシユ定着器
が用いられ、高速印刷を行う記録装置等に用いら
れている。 In copying machines and recording devices, such as electrophotography, which form electrostatic latent images and obtain visible images through development, the images developed with a developer are heated and fixed. . A flash fixing device capable of high-speed fixing is used as a fixing device that performs such heat fixing, and is used in recording devices and the like that perform high-speed printing.
例えば、第３図に示す電子写真方式のプリンタ
においては、回転する感光ドラム１を帯電器２で
帯電後、レーザ光源を光像発生部で記録すべき光
像が露光され、感光ドラム１上に光像に対応する
静電潜像が形成され、現像器４で現像剤によつて
現像された後転写ローラ５で用紙６へ転写され
る。転写された用紙６上の現像された像は連続的
にフラツシユランプを点灯するフラツシユ定着器
７によつて定着される。フラツシユ定着器７はフ
ラツシユランプの点灯によつて大量の熱エネルギ
ーを一時に発生して用紙６上の現像剤を溶解させ
て定着を行うものであり、フラツシユランプの点
灯には大量のフラツシユエネルギーを要する。一
方、印刷制御部８はホストコンピユータとデー
タ、コマンドのやりとりを行い、記憶すべきデー
タに従つて光像が発生されるよう光像発生部３を
制御するとともに、フラツシユ定着器７に充電信
号を与えてコンデンサに外部電源から充電電流を
充電せしめ、その後発光トリガ信号を与えてコン
デンサの充電エネルギーによつてフラツシユラン
プを点灯せしめる。
For example, in the electrophotographic printer shown in FIG. 3, after a rotating photosensitive drum 1 is charged by a charger 2, a laser light source is exposed to a light image to be recorded in a light image generating section, and the photosensitive drum 1 is exposed to light. An electrostatic latent image corresponding to the optical image is formed, developed with a developer by a developing device 4, and then transferred onto a sheet of paper 6 by a transfer roller 5. The developed image on the transferred paper 6 is fixed by a flash fixing device 7 that continuously turns on a flash lamp. The flash fixing device 7 generates a large amount of thermal energy at once by lighting a flash lamp to dissolve the developer on the paper 6 and perform fixing. It requires a lot of energy. On the other hand, the print control section 8 exchanges data and commands with the host computer, controls the optical image generation section 3 so that an optical image is generated according to the data to be stored, and sends a charging signal to the flash fixing device 7. The capacitor is then charged with a charging current from an external power supply, and a light emission trigger signal is then supplied to light the flash lamp by the charging energy of the capacitor.
このようなコンデンサの充電動作は第４図に示
す如くコンデンサの充電電圧の上昇に伴い外部電
源から与えられる入力電流も上昇し、コンデンサ
がフラツシユランプの点灯に必要な最大電圧VH
では入力電流は最大電流Imaxとなり、フラツシ
ユランプの点灯によりコンデンサは一挙に放電す
る。一方、かかるフラツシユ定着器を有するプリ
ンタを複数台設けたシステムにおいては、第５図
に示す様に１台のCVCF（定電圧定周波数）電源
９から分電盤１０を介し各プリンタLP１、LP
２、LP３のフラツシユ定着器７，７′，７″に充
電電流を供給するように接続される。 As shown in Figure 4, the charging operation of a capacitor is such that as the charging voltage of the capacitor rises, the input current supplied from the external power supply also rises, and the capacitor reaches the maximum voltage V H required to light the flash lamp.
In this case, the input current becomes the maximum current Imax, and the capacitor is discharged all at once by lighting the flash lamp. On the other hand, in a system including a plurality of printers each having such a flash fixing device, as shown in FIG.
2. Connected to supply charging current to flash fixing device 7, 7', 7'' of LP3.
このようなシステムにおいては、各プリンタ
LP１，LP２，LP３内でフラツシユ定着器７，
７′，７″の充放電が独立に制御されているので、
充電時の最大電流Imaxが重なることがあり、そ
の時に要する電流は第５図の場合3Imaxとなる。
In such a system, each printer
Flash fixing device 7 in LP1, LP2, LP3,
Since charging and discharging of 7′ and 7″ are controlled independently,
The maximum current Imax during charging may overlap, and the current required at that time is 3Imax in the case of FIG.
このためには、従来電源９をこれに耐えうるよ
うな大容量のものを設置することが必要となり、
そうでなければこの異常電流によつて相間電圧の
アンバランスが生じたり、分電盤１０のトリツプ
（ブレーカ断）の事故が生じるという問題がある。 For this purpose, it is necessary to install a conventional power source 9 with a large capacity that can withstand this.
Otherwise, there is a problem that this abnormal current may cause an unbalance of voltage between the phases or trip the distribution board 10 (breakage of the breaker).
この問題は、特開昭54−126547号公報等に見ら
れるような１台のプリンタ内の複数のフラツシユ
ランプを順次時間をずらして充放電制御する技術
を用いても、プリンタ自体が独立に非同期に制御
されているため、解決できなかつた。 This problem can be solved even if the technology of sequentially staggered charging and discharging of multiple flash lamps in one printer, as seen in Japanese Patent Application Laid-Open No. 54-126547, is used, but the printer itself cannot be used independently. The problem could not be resolved because it was controlled asynchronously.
本発明は、複数台のプリンタが非同期、独立に
制御されたシステムにおいて、１つの電源で充電
電流を各フラツシユ定着器に供給しても、分電盤
のトリツプ事故や相間電圧のアンバランスを生じ
ることなく安定に充電動作しうる印刷システムを
提供することを目的とする。
In a system in which multiple printers are asynchronously and independently controlled, the present invention provides a system in which a single power supply supplies charging current to each flash fixing device, resulting in tripping accidents on the distribution board and unbalanced phase voltages. The purpose of the present invention is to provide a printing system that can perform stable charging operations without any problems.
このため、本発明は、定着のため点灯するフラ
ツシユランプと、該フラツシユランプを点灯させ
るためのコンデンサと、所定の充電サイクルで該
コンデンサを充電する充電回路とを有するフラツ
シユ定着器を備える印刷装置を、各々独立して動
作するように複数台設けると共に、該コンデンサ
の充電電流を供給するための電源と、各印刷装置
の充電回路と該電源とを接続する分電盤とを有す
る印刷システムにおいて、各々タイミングを異な
らしめた充電タイミング信号を生成し、夫々異な
る印刷装置に供給するフラツシユ制御装置を設け
るとともに、各印刷装置は、上位装置と接続され
る印刷制御部を備え、該印刷制御部は、該充電タ
イミング信号を受け、該充電回路の充電サイクル
が、該タイミング信号と同期するように該充電回
路を制御することを特徴としている。 For this reason, the present invention provides a printing apparatus that includes a flash fixing device that includes a flash lamp that is lit for fusing, a capacitor for lighting the flash lamp, and a charging circuit that charges the capacitor in a predetermined charging cycle. A printing system that includes a plurality of devices each operating independently, a power source for supplying charging current to the capacitor, and a distribution board that connects the charging circuit of each printing device and the power source. A flash control device is provided which generates charge timing signals with different timings and supplies them to different printing devices, and each printing device includes a print control unit connected to a host device, and the print control unit is characterized in that it receives the charging timing signal and controls the charging circuit so that the charging cycle of the charging circuit is synchronized with the timing signal.
本発明では、フラツシユ制御装置によつて異な
るタイミングの充電タイミング信号を各印刷装置
に供給し、各印刷装置の印刷制御部で充電タイミ
ングを制御するようにしているので、第１に複数
台の印刷装置に対しても、充電の最大電流が各フ
ラツシユ定着器間で重ならない様にでき、第２に
各印刷装置が非同期動作しても、最大電流の重な
りが防止できる。
In the present invention, the flash control device supplies charging timing signals with different timings to each printing device, and the printing control section of each printing device controls the charging timing. Regarding the apparatus, it is possible to prevent the maximum charging currents from overlapping between the flash fixing devices, and secondly, even if the printing apparatuses operate asynchronously, the maximum currents can be prevented from overlapping.
以下、本発明を実施例により詳細に説明する。 Hereinafter, the present invention will be explained in detail with reference to Examples.
第１図は本発明の一実施例ブロツク図である。 FIG. 1 is a block diagram of one embodiment of the present invention.
図中、第３図及び第５図で示したものと同一の
ものは同一の記号で示してあり、１１はフラツシ
ユ制御装置であり、各プリンタLP１，LP２，
LP３の印刷制御部８へ充電タイミング信号CH
１，CH２，CH３を与えるものである。７０は
充電部であり、分電盤１０からの入力電流を印刷
制御部８からの充電信号に応じて充電電流Icとし
て流すもの、Ｃ１は充放電用コンデンサであり、
充電電流Icで充電されるもの、Ｌ１はコイルであ
り、LPはフラツシユランプであり、７１はトリ
ガ発生部であり、印刷制御部８からのトリガ信号
に応じてフラツシユランプLPをトリガし、コン
デンサＣ１の充電電圧で点灯させるものであり、
これらによつてフラツシユ定着器７が構成されて
いる。尚、他のプリンタLP２，LP３のフラツシ
ユ定着器７′，７″も同一の構成である。 In the figure, the same parts as those shown in FIGS. 3 and 5 are indicated by the same symbols, and 11 is a flash control device, and each printer LP1, LP2,
Charging timing signal CH to print control unit 8 of LP3
1, CH2, CH3. Reference numeral 70 denotes a charging unit, which allows the input current from the distribution board 10 to flow as a charging current Ic in response to a charging signal from the printing control unit 8, and C1 is a charging/discharging capacitor;
Those charged with the charging current Ic, L1 is a coil, LP is a flash lamp, 71 is a trigger generation section, which triggers the flash lamp LP in response to a trigger signal from the print control section 8, It lights up with the charging voltage of capacitor C1,
These constitute a flash fixing device 7. Incidentally, the flash fixing devices 7' and 7'' of the other printers LP2 and LP3 have the same configuration.
次に、第１図実施例の構成の動作について第２
図の各部波形図を用いて説明する。 Next, we will discuss the operation of the configuration of the embodiment in FIG.
This will be explained using waveform diagrams of each part in the figure.
印刷制御部８はホストCPUと接続され、情報
転送サイクル、記録サイクル、転写サイクル、定
着サイクルの全てを制御する。定着サイクルにお
いては、印刷制御部８はフラツシユ制御装置１１
からの充電タイミング信号CH１と同期するよう
にフラツシユ定着器７を制御する。 The print control unit 8 is connected to the host CPU and controls all of the information transfer cycle, recording cycle, transfer cycle, and fixing cycle. In the fixing cycle, the print control section 8 controls the flash control device 11.
The flash fixing device 7 is controlled so as to be synchronized with the charging timing signal CH1 from.
一方、フラツシユ制御装置１１は一種のタイミ
ング制御回路で構成され、第２図のCH１，CH
２，CH３に示す如くタイミングを異ならした充
電タイミング信号を各プリンタLP１，LP２，
LP３に与える。 On the other hand, the flash control device 11 is composed of a kind of timing control circuit, and CH1 and CH1 in FIG.
2. Charge timing signals with different timings as shown in CH3 are sent to each printer LP1, LP2,
Give to LP3.
印刷制御部８では充電タイミング信号CH１が
与えられると、充電タイミング信号CH１がオン
の時のみ充電信号を充電部７０へ与え、充電部７
０へ入力電流I1より充電電流Icを得てコンデンサ
Ｃ１を充電する。コンデンサＣ１へは定電流が与
えられるから、コンデンサＣ１の端子電圧（充電
電圧）は最大電圧VH１に向かい上昇していく。
この時入力電流I1も同様に上昇していく。 When the charge timing signal CH1 is applied to the print control section 8, the charge signal is given to the charging section 70 only when the charging timing signal CH1 is on, and the charging section 7
A charging current Ic is obtained from the input current I 1 to charge the capacitor C1. Since a constant current is applied to the capacitor C1, the terminal voltage (charging voltage) of the capacitor C1 increases toward the maximum voltage V H 1.
At this time, the input current I1 also rises.
他のプリンタLP２，LP３のフラツシユ定着器
７′，７″には、タイミングのずれた充電タイミン
グ信号CH２，CH３が与えられ、同様の動作に
よつてフラツシユ定着器７′，７″のコンデンサＣ
２，Ｃ３の端子電圧は各々時間がずれて上昇し、
その入力電流I2、I3も時間がずれて上昇し、第２
図に示す如くなる。 Charge timing signals CH2 and CH3 with different timings are applied to the flash fixing devices 7' and 7'' of the other printers LP2 and LP3, and the capacitors C of the flash fixing devices 7' and 7'' are
2, the terminal voltage of C3 rises at different times,
The input currents I 2 and I 3 also rise with time lag, and the second
The result will be as shown in the figure.
この時、分電盤から見た電流は第２図のIsの如
くなり、各フラツシユ定着器７，７′，７″へ与え
られる最大電流Imaxの3/2倍におさえられ、従来
の半分となり、入力電流の異常電流の抑制が可能
となる。又、印刷制御部８は前述の充電タイミン
グ信号CH１に同期してトリガ信号を発し、トリ
ガ発生部７１を起動してフラツシユランプLPを
点灯させ、定着動作を行わしめる。 At this time, the current seen from the distribution board becomes as shown in Is in Figure 2, and is suppressed to 3/2 times the maximum current Imax given to each flash fixing device 7, 7', 7'', which is half of the conventional value. , it becomes possible to suppress the abnormal current of the input current.Furthermore, the print control section 8 issues a trigger signal in synchronization with the above-mentioned charging timing signal CH1, starts the trigger generation section 71, and lights up the flash lamp LP. , performs the fixing operation.
このようにして、商用電源９に３台のフラツシ
ユ定着器７，７′，７″を接続し充電電流を供給す
る場合には、フラツシユ制御装置１１が充電タイ
ミングを３分割して与えることにより充電のため
の最大電流の重なりを防止している。 In this way, when three flash fixing devices 7, 7', 7'' are connected to the commercial power source 9 and charging current is supplied, the flash control device 11 divides the charging timing into three parts to provide charging. This prevents the maximum current from overlapping.
上述の実施例においては、電子写真方式のプリ
ンタに適用した例について説明したが静電記録方
式のプリンタに適用してもよく、又、フラツシユ
制御装置１１を別体とせず、例えばプリンタLP
１内に内蔵してもよく、フラツシユ定着器も３台
に限られず複数台であればよい。 In the above-mentioned embodiment, an example was explained in which it was applied to an electrophotographic printer, but it may also be applied to an electrostatic recording printer, and the flash control device 11 may not be provided separately, but may be applied to, for example, a printer LP.
The number of flash fixing devices is not limited to three, and any number of flash fixing devices may be included.
以上本発明を一実施例により説明したが、本発
明は本発明の主旨に従い種々の変形が可能であ
り、本発明からこれらを排除するものではない。 Although the present invention has been described above using one embodiment, the present invention can be modified in various ways according to the gist of the present invention, and these are not excluded from the present invention.
以上説明した様に、本発明によれば、次の効果
を奏する。
As explained above, according to the present invention, the following effects are achieved.
複数台の印刷装置の各フラツシユ定着器を１
つのフラツシユ制御装置で順次充放電制御する
ことにより、小容量の電源でも、異常電流をお
さえることができ、相間電流のアンバランスを
防止し、分電盤のトリツプ事故も防止できる。 One flash fixer for each of multiple printing devices
By sequentially controlling charging and discharging using two flash control devices, even a small-capacity power supply can suppress abnormal currents, prevent phase-to-phase current imbalance, and prevent distribution board trip accidents.
一旦充電タイミング信号を各印刷装置の印刷
制御部が受け、フラツシユ定着器の充電回路を
制御するので、各印刷装置の印刷タイミングが
非同期であつても、最大電流の重なりを防止し
つつ、印刷サイクルに合わせたフラツシユ定着
制御が可能となる。 Once the charging timing signal is received by the printing control section of each printing device and controlling the charging circuit of the flash fixing device, even if the printing timing of each printing device is asynchronous, the printing cycle can be maintained while preventing the maximum current from overlapping. It is possible to control flash fixing according to the
第１図は本発明の一実施例構成図、第２図は第
１図実施例構成の各部波形図、第３図はフラツシ
ユ定着器を用いた装置の説明図、第４図はフラツ
シユ定着のための充放電動作説明図、第５図は従
来の構成の説明図である。
図中、１，７′，７″……フラツシユ定着器、９
……電源、１１……フラツシユ制御装置、７０…
…充電部、Ｃ１……コンデンサ、LP……フラツ
シユランプ。
FIG. 1 is a configuration diagram of an embodiment of the present invention, FIG. 2 is a waveform diagram of each part of the configuration of the embodiment shown in FIG. 1, FIG. 3 is an explanatory diagram of an apparatus using a flash fixing device, and FIG. FIG. 5 is an explanatory diagram of a conventional configuration. In the figure, 1, 7', 7''...flash fixing device, 9
...Power supply, 11...Flash control device, 70...
...Charging part, C1...Capacitor, LP...Flash lamp.
Claims (1)
フラツシユランプを点灯させるためのコンデンサ
と、所定の充電サイクルで該コンデンサを充電す
る充電回路とを有するフラツシユ定着器を備える
印刷装置を、各々独立して動作するように複数台
設けると共に、 該コンデンサの充電電流を供給するための電源
と、各印刷装置の充電回路と該電源とを接続する
分電盤とを有する印刷システムにおいて、 各々タイミングを異ならしめた充電タイミング
信号を生成し、夫々異なる印刷装置に供給するフ
ラツシユ制御装置を設けるとともに、 各印刷装置は、上位装置と接続される印刷制御
部を備え、 該印刷制御部は、該充電タイミング信号を受
け、該充電回路の充電サイクルが、該タイミング
信号と同期するように該充電回路を制御すること
を 特徴とする印刷システム。[Scope of Claims] 1. Printing comprising a flash fixing device having a flash lamp that lights up for fixing, a capacitor for lighting the flash lamp, and a charging circuit that charges the capacitor in a predetermined charging cycle. A printing system including a plurality of devices each operating independently, a power source for supplying charging current to the capacitor, and a distribution board connecting the charging circuit of each printing device and the power source. A flash control device is provided which generates charge timing signals with different timings and supplies them to different printing devices, and each printing device includes a print control unit connected to a host device, and the print control unit The printing system receives the charging timing signal and controls the charging circuit so that the charging cycle of the charging circuit is synchronized with the timing signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59278291A JPS61156078A (en) | 1984-12-27 | 1984-12-27 | Control system of flash fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59278291A JPS61156078A (en) | 1984-12-27 | 1984-12-27 | Control system of flash fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61156078A JPS61156078A (en) | 1986-07-15 |
| JPH042950B2 true JPH042950B2 (en) | 1992-01-21 |
Family
ID=17595302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59278291A Granted JPS61156078A (en) | 1984-12-27 | 1984-12-27 | Control system of flash fixing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61156078A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04184457A (en) * | 1990-11-20 | 1992-07-01 | Fujitsu Ltd | Image forming device and system including plurality of these devices |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5140926A (en) * | 1974-08-01 | 1976-04-06 | Gaf Corp | |
| JPS54126547A (en) * | 1978-03-25 | 1979-10-01 | Ricoh Co Ltd | Fixing process |
| JPS5627536U (en) * | 1979-08-08 | 1981-03-14 | ||
| JPS5685118A (en) * | 1979-12-14 | 1981-07-11 | Matsushita Electric Works Ltd | Electric power control device |
| JPS5754969A (en) * | 1980-09-20 | 1982-04-01 | Fujitsu Ltd | Fixing method |
| JPS57181573A (en) * | 1981-05-01 | 1982-11-09 | Fujitsu Ltd | Continuous processing system by intermittent processing method |
| JPS57211164A (en) * | 1981-06-22 | 1982-12-24 | Ricoh Co Ltd | Power controlling method for exposure lamp and fixing heater in copying device |
| JPS58134655A (en) * | 1982-02-05 | 1983-08-10 | Ricoh Co Ltd | Power controlling device of copying device |
-
1984
- 1984-12-27 JP JP59278291A patent/JPS61156078A/en active Granted
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5140926A (en) * | 1974-08-01 | 1976-04-06 | Gaf Corp | |
| JPS54126547A (en) * | 1978-03-25 | 1979-10-01 | Ricoh Co Ltd | Fixing process |
| JPS5627536U (en) * | 1979-08-08 | 1981-03-14 | ||
| JPS5685118A (en) * | 1979-12-14 | 1981-07-11 | Matsushita Electric Works Ltd | Electric power control device |
| JPS5754969A (en) * | 1980-09-20 | 1982-04-01 | Fujitsu Ltd | Fixing method |
| JPS57181573A (en) * | 1981-05-01 | 1982-11-09 | Fujitsu Ltd | Continuous processing system by intermittent processing method |
| JPS57211164A (en) * | 1981-06-22 | 1982-12-24 | Ricoh Co Ltd | Power controlling method for exposure lamp and fixing heater in copying device |
| JPS58134655A (en) * | 1982-02-05 | 1983-08-10 | Ricoh Co Ltd | Power controlling device of copying device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61156078A (en) | 1986-07-15 |
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