JPH032077A - Printing duty variable printer - Google Patents

Printing duty variable printer

Info

Publication number
JPH032077A
JPH032077A JP1139538A JP13953889A JPH032077A JP H032077 A JPH032077 A JP H032077A JP 1139538 A JP1139538 A JP 1139538A JP 13953889 A JP13953889 A JP 13953889A JP H032077 A JPH032077 A JP H032077A
Authority
JP
Japan
Prior art keywords
printing
overheat
duty
power source
power supply
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
JP1139538A
Other languages
Japanese (ja)
Inventor
Kinji Kamitsubara
上津原　謹爾
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP1139538A priority Critical patent/JPH032077A/en
Publication of JPH032077A publication Critical patent/JPH032077A/en
Pending legal-status Critical Current

Links

Landscapes

  • Accessory Devices And Overall Control Thereof (AREA)
  • Dot-Matrix Printers And Others (AREA)

Abstract

PURPOSE:To vary duty of printing when a power source circuit is overheated by controlling the duty of printing upon reception of an overheat alarm signal for detecting the overheat of a component in the power source circuit. CONSTITUTION:When the overheat of a component in a power source circuit 1 is detected by an overheat detector and an overheat alarm signal is output, a controller 3 receives its signal, and outputs a control signal to a printing mechanism 5. The printing duty of the mechanism 5 is alleviated by the control signal. When the overheat of the circuit 1 is recovered and the signal is turned OFF, the controller 3 again returns the printing duty to the original. As described before, this printer is composed of the power source circuit having a relatively smaller capacity than normal necessity by the constitution of the power source circuit having an overheat alarm signal outputting function, and the controller for controlling the duty of printing by the overheat alarm signal.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、電源回路が過熱した場合に印字のデユーティ
−を変えることの出来るプリンタに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a printer that can change the printing duty when a power supply circuit overheats.

〔従来の技術〕[Conventional technology]

従来のプリンタでは、電源回路が過熱した場合、そのま
ま印字を続けるか、電源回路が破壊するような場合には
電源回路をストップさせていた。In conventional printers, if the power supply circuit overheats, printing will continue, or if the power supply circuit is damaged, the power supply circuit will be shut down.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

従来、印字中に電源回路が過熱した場合にそのまま印字
を続けると電源回路を破壊する為、電源回路をストップ
するかあるいは押えるかしなくてはならないという欠点
があった。Conventionally, there has been a drawback that if the power supply circuit overheats during printing, the power supply circuit will be destroyed if printing continues, so the power supply circuit must be stopped or suppressed.

〔課題を解決するための手段〕[Means to solve the problem]

本発明は、電源回路内部の部品の過熱を検出して過熱警
告信号を出力する過熱検出回路を有する電源回路と、そ
の過熱警告信号を受けて印字のデユーティ−を制御する
制御回路とを有する。The present invention includes a power supply circuit having an overheat detection circuit that detects overheating of components inside the power supply circuit and outputs an overheat warning signal, and a control circuit that receives the overheat warning signal and controls printing duty.

〔実施例〕〔Example〕

次に本発明の一実施例について図面を参照して説明する
。Next, an embodiment of the present invention will be described with reference to the drawings.

第１図において、１は電源回路、２は過熱警告信号線、
３は制御回路、４は制御信号線、５は印字機構部１６は
電源供給線を夫々示している。電源回路１が過熱し過熱
警告信号を出力すると、制御回路３はその信号を受は印
字機構部５に対して制御信号を出力する。この制御信号
により印字機構部５の印字デユーティ−が軽減される。In Figure 1, 1 is a power supply circuit, 2 is an overheat warning signal line,
3 is a control circuit, 4 is a control signal line, and 5 is a printing mechanism section 16, which is a power supply line. When the power supply circuit 1 overheats and outputs an overheat warning signal, the control circuit 3 receives the signal and outputs a control signal to the printing mechanism section 5. This control signal reduces the printing duty of the printing mechanism section 5.

そして電源回路１の過熱がおさまり過熱警告信号がオフ
すると、制御回路３は再び印字デユーティ−をもとへも
どす。Then, when the overheating of the power supply circuit 1 subsides and the overheating warning signal is turned off, the control circuit 3 returns the printing duty to the original state again.

〔発明の効果〕〔Effect of the invention〕

本発明は以上説明したように、過熱警告信号出力機能を
有する電源回路とその過熱警告信号によって印字のデユ
ーティ−を制御する制御回路との構成により、通常必要
とする比較的小容量の電源回路で装置が構成出来る。As explained above, the present invention has a configuration including a power supply circuit having an overheat warning signal output function and a control circuit that controls the printing duty based on the overheat warning signal, so that a power supply circuit with a relatively small capacity that is normally required can be used. Devices can be configured.

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

第１図は本発明の一実施例のブロック図である。 １・・・電源回路、２・・・制御回路、３・・・印字機
構部。FIG. 1 is a block diagram of one embodiment of the present invention. 1... Power supply circuit, 2... Control circuit, 3... Printing mechanism section.

Claims (1)

【特許請求の範囲】[Claims] 電源回路内部の部品の過熱を検出して過熱警告信号を出
力する過熱検出回路を有する電源回路と、前記過熱警告
信号を受けて印字のデューティーを制御する制御回路と
を有することを特徴とする印字デューティー可変プリン
タ。Printing characterized by having a power supply circuit having an overheat detection circuit that detects overheating of components inside the power supply circuit and outputs an overheat warning signal, and a control circuit that receives the overheat warning signal and controls a printing duty. Variable duty printer.
JP1139538A 1989-05-31 1989-05-31 Printing duty variable printer Pending JPH032077A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1139538A JPH032077A (en) 1989-05-31 1989-05-31 Printing duty variable printer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1139538A JPH032077A (en) 1989-05-31 1989-05-31 Printing duty variable printer

Publications (1)

Publication Number Publication Date
JPH032077A true JPH032077A (en) 1991-01-08

Family

ID=15247607

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1139538A Pending JPH032077A (en) 1989-05-31 1989-05-31 Printing duty variable printer

Country Status (1)

Country Link
JP (1) JPH032077A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5595446A (en) * 1994-10-12 1997-01-21 Printronix, Inc. Printer power supply

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5595446A (en) * 1994-10-12 1997-01-21 Printronix, Inc. Printer power supply

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