JPS63254481A - Flash type fixing device - Google Patents

Flash type fixing device

Info

Publication number
JPS63254481A
JPS63254481A JP9012087A JP9012087A JPS63254481A JP S63254481 A JPS63254481 A JP S63254481A JP 9012087 A JP9012087 A JP 9012087A JP 9012087 A JP9012087 A JP 9012087A JP S63254481 A JPS63254481 A JP S63254481A
Authority
JP
Japan
Prior art keywords
lamp
flash
circuit
burn
detecting
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
JP9012087A
Other languages
Japanese (ja)
Inventor
Nobuhiro Tsuchida
土田　悦弘
Teruo Narukawa
成川　輝雄
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 JP9012087A priority Critical patent/JPS63254481A/en
Publication of JPS63254481A publication Critical patent/JPS63254481A/en
Pending legal-status Critical Current

Links

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)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)

Abstract

PURPOSE:To prevent a printing failure caused by a lamp-cut, by providing plural pieces of flash lamps, and providing a lamp-cut detecting circuit for detecting a burn-out of the flash lamp at every piece, and a lamp driving circuit for switching the flash lamp and driving it at every piece. CONSTITUTION:In an intermediate position of a carrying path L, two pieces of flash lamps 5, 6 for heating a toner on a form are provided by arranging them before and behind, and also, a detecting circuit 7 for detecting a burn-out of the lamp 5 and 6 is provided in a lamp box 3. When executing a fixation by using the flash lamp 5 of the pre-stage, if the lamp 5 causes a burn-out, its burn-out is detected by the circuit 7, and based on its detecting signal, a lamp driving circuit 4 switches the lamp 5 to the lamp 6 of the post-stage and drives it, and the flash fixation is continued. On the other hand, the signal from the circuit 7 is inputted to a display circuit 9, and the generation of the burn-out is informed to an operator. In such a way, the operator executes replacement of the lamp 5.

Description

【発明の詳細な説明】 ［産業上の利用分野コ 本発明は、電子写真方式印刷装置のフラッシュ型定着器
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a flash type fixing device for an electrophotographic printing apparatus.

［従来の技術］ 従来、この種のフラッシュ型定着器は１組のフラッシュ
ランプを備えており、用紙上に付着したトノーーを該フ
ラッシュランプにより加熱してこれを用紙上に定着させ
ている。[Prior Art] Conventionally, this type of flash-type fixing device is equipped with a set of flash lamps, and the toner adhered to the paper is heated by the flash lamp to fix it on the paper.

［発明が解決しようとする問題点］ 旧述した従来のフラッシュ型定着器は、ランプが巾故と
なっているので、ランプが切れると装置トラブルや印刷
不良に結び付くという欠点がある。[Problems to be Solved by the Invention] The above-mentioned conventional flash type fixing device has a shortcoming in that the lamp burns out, which leads to device trouble and printing defects.

本発明の目的はランプ切れに伴う装置トラブルや印刷不
良を解消したフラッシュ型定着器を提供覆ることにある
。An object of the present invention is to provide a flash type fixing device that eliminates device troubles and printing defects caused by lamp burnout.

し問題点を解決するための手段］ 本発明は用紙上に付着したトナーをフラッシュランプに
より加熱してこれを用紙に定着させる電子写真方式印刷
装置におけるフラッシュ定着器において、複数組のフラ
ッシュランプを備え、フラッシュランプのランプ切れを
各組毎に検知するランプ切れ検出回路と、該ランプ切れ
検出回路からの信号に基づき、各組毎にフラッシュラン
プを切替えてこれを駆動するランプ駆動回路とを有する
ことを特徴とするフラッシュ型定着器である。Means for Solving Problems] The present invention provides a flash fixing device for an electrophotographic printing apparatus that heats toner attached to paper using a flash lamp and fixes it to the paper, which includes a plurality of sets of flash lamps. , having a lamp burnout detection circuit that detects burnout of the flash lamps for each set, and a lamp drive circuit that switches and drives the flash lamps for each set based on the signal from the lamp burnout detection circuit. This is a flash type fixing device.

［実施例］ 以下、本発明の一実施例を図により説明する。[Example] Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

第１図において、トナーが付着した用紙１の搬送路りの
入口側にテンションプレート２を設け、出口側にフィー
ドローラ８を設ける。In FIG. 1, a tension plate 2 is provided on the entrance side of a conveyance path for paper 1 to which toner is attached, and a feed roller 8 is provided on the exit side.

本実施例は搬送路りの中間位置に、用紙１上のトナーを
加熱する２組のフラッシュランプ５，６を前後に配列し
て設け、フラッシュランプ５，６のランプ切れを検知す
るランプ切れ検出回路７をランプボックス３に設け、ざ
らに、ランプ切れ検出回路７からの信号に基づき、各組
のフラッシュランプ５，６を切替えて駆動するランプ駆
動回路５と、ランプ切れ検出回路７の信号に基づきオペ
レータにランプ切れ、交換の表示を行う表示回路９とを
備えている。In this embodiment, two sets of flash lamps 5 and 6 that heat the toner on the paper 1 are arranged in front and behind each other at an intermediate position on the conveyance path, and lamp burnout detection is performed to detect burnout of the flash lamps 5 and 6. A circuit 7 is provided in the lamp box 3, and roughly based on the signal from the lamp burnout detection circuit 7, a lamp drive circuit 5 switches and drives each set of flash lamps 5 and 6, and a signal from the lamp burnout detection circuit 7 is connected. A display circuit 9 is provided to indicate to the operator that the lamp is burnt out and that the lamp should be replaced.

実施例において、前段のフラッシュランプ５を使って定
着を行っている場合に、フラッシュランプ５がランプ切
れを起こすと、そのランプ切れはランプ切れ検出回路７
により検出され、その検知信号に基づきランプ駆動回路
４はフラッシュランプ５から後段のフラッシュランプ６
に切替えてこれを駆動しフラッシュ定着を継続させる。In the embodiment, when fixing is performed using the flash lamp 5 in the previous stage, if the flash lamp 5 burns out, the lamp burnout is detected by the lamp burnout detection circuit 7.
Based on the detection signal, the lamp drive circuit 4 operates from the flash lamp 5 to the subsequent flash lamp 6.
This is switched to and driven to continue flash fixing.

一方、）ンプ切れ検出回路７からの信号は表示回路９に
入力し、ランプ切れが発生したことをオペレータに知ら
せる。オペレータはその表示を見てランプ切れを起した
フラッシュランプ５の交換を行う。On the other hand, the signal from the lamp burnout detection circuit 7 is input to the display circuit 9 to inform the operator that the lamp burnout has occurred. The operator looks at the display and replaces the flash lamp 5 that has burnt out.

［発明の効果］ 以上説明したように本発明はフラッシュランプを複数組
設け、ランプ切れが発生したときにそのランプを切替え
て駆動して定着を継続して行うようにしたため、ランプ
切れによる装置トラブルや印字不良を防止することがで
きる効果を有するものである。[Effects of the Invention] As explained above, in the present invention, multiple sets of flash lamps are provided, and when a lamp burns out, the lamps are switched and driven to continue fixing, thereby eliminating device troubles due to lamp burnouts. This has the effect of preventing printing defects and printing defects.

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

第１図は本発明の一実施例の概略図である。 １・・・用紙　　　　　　２・・・テンションプレート
３・・・ランプボックス　４・・・ランプ駆動回路５．
６・・・フラッシュランプ ７・・・ランプ切れ検出回路FIG. 1 is a schematic diagram of an embodiment of the present invention. 1... Paper 2... Tension plate 3... Lamp box 4... Lamp drive circuit 5.
6... Flash lamp 7... Lamp burnout detection circuit

Claims (1)

【特許請求の範囲】[Claims] （１）用紙上に付着したトナーをフラッシュランプによ
り加熱してこれを用紙に定着させる電子写真方式印刷装
置におけるフラッシュ定着器において、複数組のフラッ
シュランプを備え、フラッシュランプのランプ切れを各
組毎に検知するランプ切れ検出回路と、該ランプ切れ検
出回路からの信号に基づき、各組毎にフラッシュランプ
を切替えてこれを駆動するランプ駆動回路とを有するこ
とを特徴とするフラッシュ型定着器。(1) A flash fixing device in an electrophotographic printing device that uses a flash lamp to heat the toner adhering to paper and fix it to the paper is equipped with multiple sets of flash lamps, and each set is checked for burnout of the flash lamps. 1. A flash-type fixing device comprising: a lamp burnout detection circuit that detects a burnout; and a lamp drive circuit that switches and drives a flash lamp for each set based on a signal from the lamp burnout detection circuit.
JP9012087A 1987-04-13 1987-04-13 Flash type fixing device Pending JPS63254481A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9012087A JPS63254481A (en) 1987-04-13 1987-04-13 Flash type fixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9012087A JPS63254481A (en) 1987-04-13 1987-04-13 Flash type fixing device

Publications (1)

Publication Number Publication Date
JPS63254481A true JPS63254481A (en) 1988-10-21

Family

ID=13989651

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9012087A Pending JPS63254481A (en) 1987-04-13 1987-04-13 Flash type fixing device

Country Status (1)

Country Link
JP (1) JPS63254481A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0210554U (en) * 1988-07-04 1990-01-23

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0210554U (en) * 1988-07-04 1990-01-23

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