JPH04183159A - Information communicating equipment - Google Patents

Information communicating equipment

Info

Publication number
JPH04183159A
JPH04183159A JP2313361A JP31336190A JPH04183159A JP H04183159 A JPH04183159 A JP H04183159A JP 2313361 A JP2313361 A JP 2313361A JP 31336190 A JP31336190 A JP 31336190A JP H04183159 A JPH04183159 A JP H04183159A
Authority
JP
Japan
Prior art keywords
power
power supply
relay
battery
main system
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
Application number
JP2313361A
Other languages
Japanese (ja)
Other versions
JP2681047B2 (en
Inventor
Hiromi Ichikawa
市川 裕美
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.)
Toshiba TEC Corp
Original Assignee
Tokyo Electric 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 Tokyo Electric Co Ltd filed Critical Tokyo Electric Co Ltd
Priority to JP2313361A priority Critical patent/JP2681047B2/en
Publication of JPH04183159A publication Critical patent/JPH04183159A/en
Application granted granted Critical
Publication of JP2681047B2 publication Critical patent/JP2681047B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Facsimiles In General (AREA)
  • Devices For Supply Of Signal Current (AREA)

Abstract

PURPOSE:To prevent the consumption of electric power by automatically cutting off power supply after operation of the main unit system is completed and a set period of time passes. CONSTITUTION:When operating a power supply switch 15, a power supply control means 14 actuates a power supply relay 12 provided that the voltage of battery 11 is greater than a specified value. With this operation of power supply relay 12, to DC/DC converter (CC) 13, DC power is supplied from the battery 11. So, the main unit system (HS) 17 acts to achieve a predetermined function. When completing operation of HS 17, a timer (TM) 18 is actuated. When a request for operation of HS 17 is issued when TM 18 is in count operation, the TM 18 is reset, and HS 17 acts to achieve a predetermined requested function. When no request for operation of HS 17 during the count operation of TM 18 and a set period of time passes, the TM 18 counts up, a power control means 14 returns the power supply relay 12 to an off state. With this, CC 13 stops operation, and HS 17 is returned to the initial condition.

Description

【発明の詳細な説明】 〔発明の目的〕 (産業上の利用分野) 本発明は、ファクシミリ装置やパソコン通信端末機など
の情報通信機器に関する。
DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to information communication equipment such as facsimile machines and personal computer communication terminals.

(従来の技術) 情報通信機器として例えばファクシミIJ装置には、電
源として1次または2次電池を用いた電池駆動式がある
。このような電池駆動式のファクシミリ装置では、電力
消費を抑えてできるだけ長時間使用できるように構成さ
れていることが重要である。
(Prior Art) As an information communication device, for example, a facsimile IJ device is of a battery-powered type using a primary or secondary battery as a power source. It is important for such battery-powered facsimile machines to be configured so that they can be used for as long as possible while minimizing power consumption.

ところで、従来のこの種の電池駆動式のファクミリ装置
では、電源スイッチをオンした待機状態では、装置全体
に電源が供給されるので不要な回路が動作してしまい、
消費電力が大きくなってしまう。このため、電池寿命が
短くなり、ファクシミリ装置としての動作時間が短くな
ってしまう。
By the way, in conventional battery-powered facsimile devices of this type, when the power switch is turned on and in standby mode, power is supplied to the entire device, causing unnecessary circuits to operate.
Power consumption will increase. As a result, the battery life is shortened, and the operating time of the facsimile device is shortened.

(発明が解決しようとする課題) このように、従来の装置は、待機状態において装置全体
に電源から電力が供給されてしまうため、待機状態での
電力消費が大きく、電池駆動式の場合では、電池電圧か
比較的早期に低下し、電池の実稼働時間が短くなってい
た。
(Problems to be Solved by the Invention) As described above, in the conventional device, power is supplied to the entire device from the power supply in the standby state, so power consumption in the standby state is large, and in the case of a battery-powered device, The battery voltage dropped relatively early, and the battery's actual operating time was shortened.

本発明の目的は、本体システムが所定の動作が完了した
後は、設定時間後に本体システムへの電源の供給を自動
遮断すると共に、動作指令に対してはただちに電源の供
給を再開できるようにして、電力消費の低減および操作
の容易性を確保した情報通信機器を提供することにある
An object of the present invention is to automatically cut off the power supply to the main system after a set time after the main system completes a predetermined operation, and to immediately resume the power supply in response to an operation command. The object of the present invention is to provide information communication equipment that ensures reduced power consumption and ease of operation.

〔発明の構成〕[Structure of the invention]

(課題を解決するための手段) 本発明は、電源スイッチのオンオフ操作により通常オン
オフされる電源リレーと、この電源リレーがオン状態と
なることにより所定の機能をはたすべく動作する本体シ
ステムと、この本体システムの動作終了時からの経過時
間を計時するタイマーと、前記本体システムが電話回線
に接続されていることを検出する回線接続検出手段と、
前記タイマーによって所定経過時間が計時されたときに
前記電源リレーをオフ状態に制御するとともに、前記本
体システムに対する動作指令の入力時に前記回線接続検
出手段による検出を条件に前記電源リレーをオン状態に
制御する電源制御手段とを備えたものである。
(Means for Solving the Problems) The present invention provides a power relay that is normally turned on and off by turning on and off a power switch, a main body system that operates to perform a predetermined function when the power relay is turned on, and a timer for measuring the elapsed time since the end of the operation of the main system; a line connection detection means for detecting that the main system is connected to a telephone line;
Controlling the power relay to be in an OFF state when a predetermined elapsed time has been measured by the timer, and controlling the power relay to be in an ON state on condition that detection by the line connection detection means is performed when an operation command is input to the main body system. The device is equipped with a power supply control means for controlling the power supply.

(作用) 本発明では、電源スイッチがオン操作されると本体シス
テムに電源を供給し、所定の機能を達成すべく動作させ
るが、この動作が完了した後は、設定時間後に電源の供
給を自動遮断して電力の無用な消費を防止する。また、
次の動作指令が生じた場合は、電話回線に接続されてい
ることを条件に本体システムに対する電源の供給をただ
ちに再開できるようにして、操作の容易性を確保してい
る。
(Function) In the present invention, when the power switch is turned on, power is supplied to the main system and the main system is operated to achieve a predetermined function, but after this operation is completed, the power supply is automatically turned off after a set time. shut off to prevent unnecessary consumption of power. Also,
When the next operation command occurs, the power supply to the main system can be immediately resumed as long as it is connected to the telephone line, ensuring ease of operation.

(実施例) 以下、本発明の一実施例を図面を参照して説明する。(Example) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

第1図において、11は電源用の電池で、1次または2
次電池のいずれでもよく、電源リレー12を介してD 
C/D Cコンバータ13に接続している。
In Figure 1, 11 is a battery for power supply, which is either primary or secondary.
Any of the following batteries may be used, and the D
It is connected to the C/DC converter 13.

この電源リレー12は、電源制御手段14によりオン・
オフ制御されるものである。15は電源スイッチで、オ
ンオフ操作されることにより上記電源制御手段14を介
して電源リレー12をオンオフ動作させる。
This power relay 12 is turned on and off by the power control means 14.
It is controlled off. Reference numeral 15 denotes a power switch, which turns on and off the power relay 12 via the power control means 14 when turned on and off.

前記DC/D(:コンバータ13は、ファクシミリ装置
の通信用のモデムや通信制御回路などを有する本体シス
テム17に対する電源装置であり、電源リレー12がオ
ン状態になり、電池11と接続されることにより動作し
、上記本体システム17に電力を供給してこれが所定の
機能を果たすように動作させる。
The DC/D converter 13 is a power supply device for the main system 17 that includes a modem for communication of the facsimile machine, a communication control circuit, etc. When the power relay 12 is turned on and connected to the battery 11, The controller operates, supplies power to the main body system 17, and operates it to perform a predetermined function.

18はタイマーで、上記D C/D Cコンバータ13
が動作して本体システム17が所定の動作を実行した場
合、この動作の終了を検出し、その終了時点からの経過
時間を計時し、所定経過時間が計時されたときに前記電
源制御手段14によって電源リレー12をオフ状態に制
御する。なお、このとき電源スイッチ15はオン状態の
ままであり、いわゆる待機状態である。
18 is a timer, and the above-mentioned DC/DC converter 13
is activated and the main body system 17 executes a predetermined operation, the end of this operation is detected, the elapsed time from the end point is measured, and when the predetermined elapsed time is measured, the power supply control means 14 The power relay 12 is controlled to be in an OFF state. Note that at this time, the power switch 15 remains in the on state, and is in a so-called standby state.

前述のように電源リレー12がオフ状態になるとDC/
DCコンバータ13、すなわち、本体システム17に対
する電源供給は停止されるので、電池11の大幅な電力
消費は生じない。このため、待機状態での無駄な電力消
費が防止される。
As mentioned above, when the power relay 12 is turned off, the DC/
Since the power supply to the DC converter 13, that is, the main system 17, is stopped, a large amount of power consumption of the battery 11 does not occur. Therefore, wasteful power consumption in the standby state is prevented.

21は送信原稿検出部で、ファクシミリ装置の図示しな
いドキュメント部に送信原稿が挿入されたことを検出す
る。22はキボード操作検出部で、ファクシミリ装置に
設けられている図示しないキーボードのいずれかのキー
が操作されたことを検出する。23は電話のリンガ−検
出部で、電話回線24により自分が呼び出されたことを
検出する。これら検出部21.22.23は、いずれも
ファクシミリ装置の本体システム17に対する動作指令
として電源制御手段14に入力される。
Reference numeral 21 denotes a transmission document detecting section that detects that a transmission document is inserted into a document section (not shown) of the facsimile machine. Reference numeral 22 denotes a keyboard operation detection section that detects that any key of a keyboard (not shown) provided in the facsimile machine is operated. Reference numeral 23 denotes a ringer detection section of the telephone, which detects that the user is being called through the telephone line 24. These detection units 21, 22, and 23 are all inputted to the power supply control means 14 as operation commands for the main body system 17 of the facsimile machine.

25は回線接続検出手段で、回線電流が流れているかに
より、ファクシミリ装置の本体システム17が電話回線
24に接続されているかを検出する。
Reference numeral 25 denotes line connection detection means, which detects whether the main system 17 of the facsimile machine is connected to the telephone line 24 based on whether line current is flowing.

電源制御手段14は、前記待機状態において、上記送信
原稿検出部21、キーボード操作検出部22、電話のリ
ンガ−検出部23のいずれかが動作した場合、回線接続
検出手段25の動作、すなわち、ファクシミリ装置の本
体システム17が電話回線24に接続されていることを
条件に、前記電源リレー12をオン状態に制御する。
In the standby state, when any one of the transmission document detection section 21, keyboard operation detection section 22, and telephone ringer detection section 23 operates, the power supply control means 14 controls the operation of the line connection detection means 25, that is, the facsimile On condition that the main system 17 of the device is connected to the telephone line 24, the power relay 12 is controlled to be in the on state.

なお、電源制御手段14は、電池電圧検出回路27の検
出信号を入力しており、電源リレー12に対するオン制
御は電池11の電圧が基準値以上である場合にのみ行わ
れ、基準値に達しない場合は自動復帰し、電源リレー1
2のオン制御は行わない。
Note that the power supply control means 14 inputs the detection signal of the battery voltage detection circuit 27, and ON control of the power supply relay 12 is performed only when the voltage of the battery 11 is equal to or higher than the reference value, and does not reach the reference value. If so, it will automatically return and the power relay 1
2 on control is not performed.

次に、本実施例の作用を説明する。Next, the operation of this embodiment will be explained.

先ず電源スイッチ15をオン操作すると、電源制御手段
14は、電池11の電圧が規定電圧以上であることを条
件に電源リレー12をオン動作させる。
First, when the power switch 15 is turned on, the power control means 14 turns on the power relay 12 on the condition that the voltage of the battery 11 is equal to or higher than a specified voltage.

この動作により、DC/DCコンバータ13に対して電
池11から直流電力が供給される。このため、D C/
D Cコンバータ13が動作して本体システム17に電
源を供給するので、本体システム17は所定の機能(例
えば送信機能)を達成すべく動作する。
Through this operation, DC power is supplied from the battery 11 to the DC/DC converter 13. For this reason, D C/
Since the DC converter 13 operates to supply power to the main system 17, the main system 17 operates to achieve a predetermined function (for example, a transmission function).

上述した本体システム17の動作が終了すると、タイマ
ー18が起動される。このタイマー18のカウント中に
送信機能等の動作要求があれは、このタイマー18はリ
セットされ、本体システム17は上記所定の要求機能を
達成すべく動作する。動作終了後は再びタイマー18が
起動する。
When the operation of the main body system 17 described above is completed, the timer 18 is activated. If there is a request for an operation such as a transmission function while the timer 18 is counting, the timer 18 is reset and the main system 17 operates to accomplish the predetermined requested function. After the operation is completed, the timer 18 is activated again.

タイマー18のカウント中に前記動作要求かなく、設定
時間が経過すると、タイマー18はカウントアツプし、
電源制御手段14は前記電源リレー12をオフ状態に復
帰させる。このため、D C/’ D Cコンバータ1
3の動作は停止し、本体システム17への電力供給が絶
たれるので、本体システム17は初期状態に戻される。
If there is no operation request while the timer 18 is counting, and the set time elapses, the timer 18 counts up.
The power supply control means 14 returns the power supply relay 12 to the OFF state. For this reason, D C/' D C converter 1
3 is stopped and the power supply to the main system 17 is cut off, so the main system 17 is returned to its initial state.

なお、このとき電源スイッチ15はオン状態のままであ
り、待機状態となっている。
Note that at this time, the power switch 15 remains in the on state and is in a standby state.

上記待機状態において、電源制御手段14に次のいずれ
かの動作指令が加わった場合、すなわち、ドキュメント
部に送信原稿が挿入され、これを検出した送信原稿検出
部21から検出信号が入力された場合、キーボード部の
いずれかのキーが操作され、これを検出したキーボード
操作検出部22から検出信号が入力された場合、電話回
線24から呼び出され、これを検出した電話のリンガ−
検出部23から検出信号が入力された場合、のいずれか
が生じた場合は、回線接続検出手段25により自分(フ
ァクシミリ装置)が電話回線24に接続されていると検
出されたことを条件に、電源制御手段14は電源リレー
12をオン動作させる。このため、DC/DCコンバニ
タ13は再び電池11と接続され、本体システム17に
電力を供給して、前記動作指令に対応した所定の動作、
例えば、送信動作を実行させる。
In the above standby state, when any of the following operation commands is applied to the power supply control means 14, that is, when a transmission document is inserted into the document section and a detection signal is input from the transmission document detection section 21 that detects this. , when any key on the keyboard section is operated and a detection signal is input from the keyboard operation detection section 22 that detects this, a call is made from the telephone line 24, and the ringer of the telephone that detected this is called.
If a detection signal is input from the detection unit 23, or if either of the following occurs, the line connection detection means 25 detects that the facsimile machine itself (the facsimile machine) is connected to the telephone line 24. The power supply control means 14 turns on the power supply relay 12. Therefore, the DC/DC converter 13 is connected to the battery 11 again, supplies power to the main system 17, and performs a predetermined operation corresponding to the operation command.
For example, a sending operation is executed.

上記説明は、送信動作について行ったが受信動作やコピ
ー動作の場合も同じである。これらの動作が終了した後
は、前述したように、タイマー18が起動され、その設
定時間経過後に前記電源リレー12をオフ状態に復帰さ
せ、本体システム17への電源供給を絶ち、この本体シ
ステム17を初期状態に戻す。
The above explanation has been made regarding the transmission operation, but the same applies to the reception operation and the copy operation. After these operations are completed, as described above, the timer 18 is started, and after the set time elapses, the power relay 12 is returned to the OFF state, the power supply to the main system 17 is cut off, and the main system 17 is turned off. Return to initial state.

このように本体システム17による所定の動作が終了す
ると、設定時間後に電源リレー12をオフ動作させて電
池11を自動遮断するので、電源スイッチ15を切り忘
れても電池11が長時間に渡って無用に消費されること
はない。特に、電池IIが2次電池の場合は完全放電を
防ぐことができる。これらの結果、電池寿命の延命化が
可能となり、ファクシミリ装置としての長時間稼働を確
保することができる。
In this way, when the main system 17 completes a predetermined operation, the power relay 12 is turned off after a set time and the battery 11 is automatically cut off, so even if you forget to turn off the power switch 15, the battery 11 will remain useless for a long time. It is never consumed. Particularly, when battery II is a secondary battery, complete discharge can be prevented. As a result, the battery life can be extended, and long-term operation as a facsimile machine can be ensured.

また、このように電源リレー12によって自動遮断が行
われても、ファクシミリ装置としては待機状態であるの
で、次の動作指令があった場合は、回線が接続されてい
ることを条件に、直ちに電源リレー12がオン状態に制
御され、上記動作指令に対応した所定の機能を実行する
ことができる。すなわち、所定の動作を行う度に電源ス
イッチ15を操作するというような面倒な操作を要しな
いので、操作の容易性が確保される。
In addition, even if the power relay 12 automatically shuts off the facsimile machine, it remains in a standby state, so if the next operation command is received, the power will be turned off immediately, provided that the line is connected. The relay 12 is controlled to be on, and can perform a predetermined function corresponding to the operation command. That is, there is no need for troublesome operations such as operating the power switch 15 every time a predetermined operation is performed, so ease of operation is ensured.

なお、DC/DCコンバータ13が動作していす、本体
システム17全体の電源が絶たれている状態で、電源ス
イッチ15を投入すると、システムはイニシャル動作状
態となり、前述したように、電源制御手段14によって
電源リレー12をオン動作させる。
Note that when the power switch 15 is turned on while the DC/DC converter 13 is operating and the power to the entire main system 17 is turned off, the system enters the initial operating state, and as described above, the power control means 14 The power relay 12 is turned on.

また、D C/D Cコンバータ13が動作して本体シ
ステム17の全体が動作しているときに電源スイッチ1
5をオフ操作すると、電源リレー12は直ちにオフ状態
となり、DC/DCコンバータ13への電源が絶たれる
ため、本体システム17への電源も絶たれ、本体システ
ム17は停止する。
Also, when the DC/DC converter 13 is operating and the entire main body system 17 is operating, the power switch 1 is
5, the power relay 12 is immediately turned off and the power to the DC/DC converter 13 is cut off, so the power to the main system 17 is also cut off and the main system 17 is stopped.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、本体システムの動作が完了した後は、
設定時間後に電源の供給を自動遮断して電力の無用な消
費を防止し、また、次の動作指令が生じた場合は、電話
回線に接続されていることを条件に本体システムに対す
る電源の供給をただちに再開できるようにしているため
、待機状態での無用な電力消費を防止でき、省電力化を
達成することができる。このため、電池駆動式の場合で
は、電池電力を有効利用でき、電池寿命を延命化して稼
働時間を長時間に渡って確保することができる。
According to the present invention, after the operation of the main system is completed,
The power supply is automatically cut off after a set time to prevent unnecessary power consumption, and when the next operation command occurs, the power supply to the main system is cut off on the condition that it is connected to the telephone line. Since the system can be restarted immediately, unnecessary power consumption in the standby state can be prevented and power savings can be achieved. For this reason, in the case of a battery-driven type, battery power can be used effectively, the battery life can be extended, and operating time can be ensured over a long period of time.

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

第1図は本発明による情報通信機器の一実施例を示すブ
ロック図である。 12・・電源リレー、14・・電源制御手段、15・・
電源スイッチ、17・・本体システム、2+、22゜2
3・・動作指令用の検出部、24・・電話回線、25・
・回線接続検出手段。
FIG. 1 is a block diagram showing an embodiment of information communication equipment according to the present invention. 12...Power supply relay, 14...Power supply control means, 15...
Power switch, 17...Main system, 2+, 22゜2
3. Detection unit for operation command, 24. Telephone line, 25.
・Line connection detection means.

Claims (1)

【特許請求の範囲】[Claims] (1)電源スイッチのオンオフ操作により通常オンオフ
される電源リレーと、 この電源リレーがオン状態となることにより所定の機能
をはたすべく動作する本体システムと、この本体システ
ムの動作終了時からの経過時間を計時するタイマーと、 前記本体システムが電話回線に接続されていることを検
出する回線接続検出手段と、 前記タイマーによって所定経過時間が計時されたときに
前記電源リレーをオフ状態に制御するとともに、前記本
体システムに対する動作指令の入力時に前記回線接続検
出手段による検出を条件に前記電源リレーをオン状態に
制御する電源制御手段と を備えたことを特徴とする情報通信機器。
(1) A power relay that is normally turned on and off by the on/off operation of a power switch, a main system that operates to perform a predetermined function when this power relay is turned on, and the elapsed time from the end of the main system's operation. a timer for measuring the time; a line connection detection means for detecting that the main system is connected to a telephone line; and controlling the power relay to turn off when a predetermined elapsed time has been measured by the timer; An information communication device comprising: power supply control means for controlling the power supply relay to be in an on state on the condition that the line connection detection means detects when an operation command is input to the main body system.
JP2313361A 1990-11-19 1990-11-19 Information and communication equipment Expired - Lifetime JP2681047B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2313361A JP2681047B2 (en) 1990-11-19 1990-11-19 Information and communication equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2313361A JP2681047B2 (en) 1990-11-19 1990-11-19 Information and communication equipment

Publications (2)

Publication Number Publication Date
JPH04183159A true JPH04183159A (en) 1992-06-30
JP2681047B2 JP2681047B2 (en) 1997-11-19

Family

ID=18040333

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2313361A Expired - Lifetime JP2681047B2 (en) 1990-11-19 1990-11-19 Information and communication equipment

Country Status (1)

Country Link
JP (1) JP2681047B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011034559A (en) * 2009-07-09 2011-02-17 Ricoh Co Ltd Image forming apparatus, energy saving transition return control method, and energy saving transition return control program
JP2015112822A (en) * 2013-12-13 2015-06-22 株式会社沖データ Image forming apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61206352U (en) * 1985-06-14 1986-12-26
JPS6249777A (en) * 1985-08-29 1987-03-04 Nec Corp Facsimile equipment with automatic calling function
JPS63105558A (en) * 1986-10-23 1988-05-10 Oki Electric Ind Co Ltd Controlling system for call of automatic dialing network controller
JPH01223873A (en) * 1988-03-03 1989-09-06 Nec Eng Ltd Facsimile equipment with automatic power supply control function

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61206352U (en) * 1985-06-14 1986-12-26
JPS6249777A (en) * 1985-08-29 1987-03-04 Nec Corp Facsimile equipment with automatic calling function
JPS63105558A (en) * 1986-10-23 1988-05-10 Oki Electric Ind Co Ltd Controlling system for call of automatic dialing network controller
JPH01223873A (en) * 1988-03-03 1989-09-06 Nec Eng Ltd Facsimile equipment with automatic power supply control function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011034559A (en) * 2009-07-09 2011-02-17 Ricoh Co Ltd Image forming apparatus, energy saving transition return control method, and energy saving transition return control program
JP2015112822A (en) * 2013-12-13 2015-06-22 株式会社沖データ Image forming apparatus

Also Published As

Publication number Publication date
JP2681047B2 (en) 1997-11-19

Similar Documents

Publication Publication Date Title
KR20190054708A (en) Method for reducing standby-power and electronic device thereof
JP2000102184A (en) Power-saving ac adapter
JPH04183159A (en) Information communicating equipment
US5842121A (en) Power supply unit with switch-on/off facility for powering radio equipment
JP2001034370A (en) Power-saving controller, power-saving control method, and computer system
KR100677068B1 (en) Apparatus and method for controlling power of portable information terminal
JPH06311079A (en) Mobile telephone set with automatic power-off function
US5569965A (en) Control method for reducing quiescent current
JPH10173840A (en) Facsimile equipment
KR100212196B1 (en) Circuit and method for power saving in cellular phone
JP2003111272A (en) Control device
JPH044276Y2 (en)
JP3428398B2 (en) Power supply circuit
JPH11327705A (en) Information processor
JPH08111932A (en) Power supply apparatus
JPH08279868A (en) Facsimile equipment
JP2000312437A (en) Power device
JPH04259019A (en) Electronic equipment
JPH06222862A (en) Power consumption controller
JP2000196792A (en) Facsimile equipment
KR200269288Y1 (en) Switching System for Power saving Product
JPH10143292A (en) Portable information equipment
JP2002215274A (en) Power consumption reduction system
JP2005012931A (en) Charge control circuit, charge control method, and electronic apparatus
JPH114278A (en) Modem device