JPH04314569A - Printer with power saving function - Google Patents
Printer with power saving functionInfo
- Publication number
- JPH04314569A JPH04314569A JP8214191A JP8214191A JPH04314569A JP H04314569 A JPH04314569 A JP H04314569A JP 8214191 A JP8214191 A JP 8214191A JP 8214191 A JP8214191 A JP 8214191A JP H04314569 A JPH04314569 A JP H04314569A
- Authority
- JP
- Japan
- Prior art keywords
- power
- analysis
- detection
- printer
- host
- 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
Links
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 230000006870 function Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Accessory Devices And Overall Control Thereof (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は電子写真記録方式の印字
装置に関し、特に不用な電力の消費を削減するための節
電機能を有する印字装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrophotographic printing apparatus, and more particularly to a printing apparatus having a power saving function for reducing unnecessary power consumption.
【０００２】0002
【従来の技術】従来、この種の印字装置における電源ス
イッチは、上位装置とは全く独立したものであって、印
字装置の消費電力が多いためにディスプレイ等の周辺機
器のように上位装置の本体の電源コネクタに接続し、上
位装置本体の電源スイッチを切ると同様に電源が切れる
という方式は採用していない。このため、上位装置本体
の電源スイッチを切っても印字装置の電源を切り忘れる
ことがあり、不用な電力を消費する場合が少なくなかっ
た。[Prior Art] Conventionally, the power switch in this type of printing device has been completely independent of the host device. We do not use a system in which the power can be turned off in the same way by connecting it to the power connector of the host device and turning off the power switch on the host device itself. For this reason, even if the power switch of the main body of the host device is turned off, there are cases where the user forgets to turn off the power of the printing device, resulting in unnecessary power consumption.
【０００３】0003
【発明が解決しようとする課題】上述した従来の印字装
置の電源スイッチは、障害・故障等の場合を除いてはオ
ペレータが切らない限り電源が切断されることはない。
このため、オペレータが何らかの都合で印字装置の電源
スイッチを切らなかったり、あるいは切り忘れたりする
と、次に使用するまでの間は電源スイッチが入ったまま
となって、不用な電力を消費するという欠点がある。SUMMARY OF THE INVENTION The power switch of the conventional printing apparatus described above does not turn off the power unless an operator turns it off, except in the case of a failure or failure. Therefore, if the operator does not or forgets to turn off the printer's power switch for some reason, the power switch remains on until the next time it is used, consuming unnecessary power. be.
【０００４】0004
【課題を解決するための手段】本発明は、上位装置より
入力するデータを逐次検出する検出装置と、時間情報を
提供する計時装置と、電源スイッチを切替える内部スイ
ッチ切替え装置と、前記検出装置及び前記計時装置から
得られた前記検出情報及び前記時間情報に基づいて解析
を行う解析装置と、前記解析装置の解析結果を不揮発性
メモリに記憶させるとともに、前記内部スイッチ切替え
装置の作動を制御する制御装置とを備え、前記上位装置
より所定の時間データの入力がない場合は、本体の電源
を切断することを特徴とする。[Means for Solving the Problems] The present invention provides a detection device that sequentially detects data input from a host device, a clock device that provides time information, an internal switch switching device that switches a power switch, and the detection device and an analysis device that performs analysis based on the detection information and the time information obtained from the timekeeping device; and a control that stores the analysis results of the analysis device in a nonvolatile memory and controls the operation of the internal switch switching device. The device is characterized in that if no data is input from the host device for a predetermined period of time, the power to the main body is cut off.
【０００５】[0005]
【実施例】次に、本発明について図面を参照して説明す
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings.
【０００６】図１は本発明の一実施例を示すブロック図
である。本発明の印字装置１は検出装置１１と、計時装
置１２と、解析装置１３と、不揮発性メモリ１４と、制
御装置１５と、内部スイッチ切替え装置１６とを含んで
おり、ホストコンピュータ（上位装置）２と電源スイッ
チ３とに接続されている。FIG. 1 is a block diagram showing one embodiment of the present invention. The printing device 1 of the present invention includes a detection device 11, a timing device 12, an analysis device 13, a non-volatile memory 14, a control device 15, an internal switch switching device 16, and a host computer (host device). 2 and a power switch 3.
【０００７】検出装置１１は上位装置から印字装置に対
して送られてくる印字データを逐次検出し解析装置１３
に通知する。計時装置１２は時間情報を内部発生し解析
装置１３に通知する。解析装置１３は検出装置１１から
得た検出情報及び計時装置１２からの時間情報を基に解
析処理を行い制御装置１５に送出する。不揮発性メモリ
１４は解析装置１３からの情報を制御装置１５を介して
記憶保持する。また、制御装置１５より保持している情
報の出力要求があると必要な際読み出すことも行う。制
御装置１５では解析装置１３から得た情報を不揮発性メ
モリ１４に書き込み、更に、過去一定時間内における上
位装置２から印字装置１に対する印字データの転送状況
を不揮発性メモリ１４から読み出し、印字装置側が一定
時間内に印字データを受信していないと判断されると、
内部スイッチ切り替え装置１６に対し信号を送る。取り
出された過去一定時間の印字データの転送状況は、取り
出された際に転送状況データの中で最も古い情報を消去
し、その次に古いデータを最も古いデータとし再登録す
る。順次、更新処理を行い、最も新しいデータが一つ前
のデータとして処理されるまで行う。そして、最も新し
いデータの部分はそのまま不揮発性メモリ１４に書き込
まれる。内部スイッチ切替え装置１６は制御装置１５よ
り信号が与えられると印字装置１の外部の電源スイッチ
３との接続を切断する。[0007] The detection device 11 sequentially detects print data sent from the host device to the printing device and analyzes the data by analyzing the data.
Notify. The clock device 12 internally generates time information and notifies the analysis device 13 of the time information. The analysis device 13 performs analysis processing based on the detection information obtained from the detection device 11 and the time information from the clock device 12 and sends it to the control device 15 . The nonvolatile memory 14 stores and holds information from the analysis device 13 via the control device 15. Further, when there is a request to output the information held by the control device 15, the information is read out when necessary. The control device 15 writes the information obtained from the analysis device 13 into the non-volatile memory 14, and further reads the transfer status of print data from the host device 2 to the printing device 1 within a certain past period of time from the non-volatile memory 14. If it is determined that no print data has been received within a certain period of time,
A signal is sent to the internal switching device 16. When the transfer status of the retrieved print data for a certain period of time in the past is retrieved, the oldest information among the transfer status data is deleted, and the next oldest data is re-registered as the oldest data. Update processing is performed sequentially until the newest data is processed as the previous data. Then, the newest data portion is written into the nonvolatile memory 14 as is. When the internal switch switching device 16 receives a signal from the control device 15, it disconnects the printing device 1 from the external power switch 3.
【０００８】図２は上位装置２から印字装置１への印字
データの受信状況と電源スイッチ３の切替えの状態とを
示す図である。FIG. 2 is a diagram showing the reception status of print data from the host device 2 to the printing device 1 and the switching status of the power switch 3.
【０００９】ここで、図２（ａ）は通常印字データが送
られてくる場合の印字装置の状態を示しており、また、
図２（ｂ）は印字データが送られてこない場合の状態を
示している。FIG. 2(a) shows the state of the printing device when normal printing data is sent, and
FIG. 2(b) shows the situation when no print data is sent.
【００１０】0010
【発明の効果】以上説明したように本発明は、上位装置
のデータ受信状況を検出して電源スイッチの投入・切断
を行うため、オペレータが印字装置の電源を切り忘れて
も印字装置自体で電源スイッチが切断され、不用な電力
の消費を避けることができるという効果がある。Effects of the Invention As explained above, the present invention turns on and off the power switch by detecting the data reception status of the host device, so even if the operator forgets to turn off the power to the printing device, the printing device itself can switch the power on and off. This has the effect of avoiding unnecessary power consumption.
【図１】本発明の一実施例を示すブロック図である。FIG. 1 is a block diagram showing one embodiment of the present invention.
【図２】本実施例の電源スイッチ３の状態を説明する図
である。FIG. 2 is a diagram illustrating the state of the power switch 3 of this embodiment.
１ 印字装置 ２ 上位装置 ３ 電源スイッチ １１ 検出装置 １２ 計時装置 １３ 解析装置 １４ 不揮発性メモリ １５ 制御装置 １６ 内部スイッチ切替え装置 1 Printing device 2 Upper device 3 Power switch 11 Detection device 12 Timing device 13 Analysis device 14 Non-volatile memory 15 Control device 16 Internal switch switching device
Claims (1)
出する検出装置と、時間情報を提供する計時装置と、電
源スイッチを切替える内部スイッチ切替え装置と、前記
検出装置及び前記計時装置から得られた前記検出情報及
び前記時間情報に基づいて解析を行う解析装置と、前記
解析装置の解析結果を不揮発性メモリに記憶させるとと
もに、前記内部スイッチ切替え装置の作動を制御する制
御装置とを備え、前記上位装置より所定の時間データの
入力がない場合は、本体の電源を切断することを特徴と
する節電機能付き印字装置。1. A detection device that sequentially detects data input from a host device, a timing device that provides time information, an internal switch switching device that switches a power switch, and a detection device that sequentially detects data input from a host device; The host device includes an analysis device that performs analysis based on the detection information and the time information, and a control device that stores the analysis results of the analysis device in a nonvolatile memory and controls the operation of the internal switch switching device. A printing device with a power saving function characterized in that if no data is input for a predetermined period of time, the power to the main body is cut off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8214191A JPH04314569A (en) | 1991-04-15 | 1991-04-15 | Printer with power saving function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8214191A JPH04314569A (en) | 1991-04-15 | 1991-04-15 | Printer with power saving function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04314569A true JPH04314569A (en) | 1992-11-05 |
Family
ID=13766157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8214191A Pending JPH04314569A (en) | 1991-04-15 | 1991-04-15 | Printer with power saving function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04314569A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0729114A2 (en) * | 1995-02-22 | 1996-08-28 | Star Micronics Co., Ltd. | Printing apparatus |
| US5697717A (en) * | 1992-12-21 | 1997-12-16 | Canon Kabushiki Kaisha | Method and apparatus for controlling supply of electric power to an indicator for indicating a state of the apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63193874A (en) * | 1987-02-06 | 1988-08-11 | Nec Corp | Power supply control circuit in printer |
| JPS63246268A (en) * | 1987-04-01 | 1988-10-13 | Nec Corp | Power source circuit device for printer |
| JPS6487381A (en) * | 1987-09-30 | 1989-03-31 | Nec Corp | Printer |
| JPH01237717A (en) * | 1988-03-18 | 1989-09-22 | Canon Inc | Printer |
| JPH01290484A (en) * | 1988-05-17 | 1989-11-22 | Nec Corp | Printer device |
-
1991
- 1991-04-15 JP JP8214191A patent/JPH04314569A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63193874A (en) * | 1987-02-06 | 1988-08-11 | Nec Corp | Power supply control circuit in printer |
| JPS63246268A (en) * | 1987-04-01 | 1988-10-13 | Nec Corp | Power source circuit device for printer |
| JPS6487381A (en) * | 1987-09-30 | 1989-03-31 | Nec Corp | Printer |
| JPH01237717A (en) * | 1988-03-18 | 1989-09-22 | Canon Inc | Printer |
| JPH01290484A (en) * | 1988-05-17 | 1989-11-22 | Nec Corp | Printer device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5697717A (en) * | 1992-12-21 | 1997-12-16 | Canon Kabushiki Kaisha | Method and apparatus for controlling supply of electric power to an indicator for indicating a state of the apparatus |
| EP0729114A2 (en) * | 1995-02-22 | 1996-08-28 | Star Micronics Co., Ltd. | Printing apparatus |
| EP0729114A3 (en) * | 1995-02-22 | 1997-04-16 | Star Mfg Co | Printing apparatus |
| US5720560A (en) * | 1995-02-22 | 1998-02-24 | Star Micronics Co., Ltd. | Printing apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19970930 |