JP2008191387A - Image recorder - Google Patents

Image recorder Download PDF

Info

Publication number
JP2008191387A
JP2008191387A JP2007025564A JP2007025564A JP2008191387A JP 2008191387 A JP2008191387 A JP 2008191387A JP 2007025564 A JP2007025564 A JP 2007025564A JP 2007025564 A JP2007025564 A JP 2007025564A JP 2008191387 A JP2008191387 A JP 2008191387A
Authority
JP
Japan
Prior art keywords
power supply
supply circuit
image recording
voltage
recording apparatus
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
JP2007025564A
Other languages
Japanese (ja)
Other versions
JP5043458B2 (en
Inventor
Hidehiro Wakamiya
秀洋 若宮
Ken Murooka
謙 室岡
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP2007025564A priority Critical patent/JP5043458B2/en
Publication of JP2008191387A publication Critical patent/JP2008191387A/en
Application granted granted Critical
Publication of JP5043458B2 publication Critical patent/JP5043458B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Electrophotography Configuration And Component (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image recorder that dispenses with creeping distance between a high voltage wire and a primary power supply circuit and can be made compact. <P>SOLUTION: The image recorder includes the primary power supply circuit and a high voltage power supply circuit and supplies the output of the high voltage power supply circuit to a load via an insulated wire 220, wherein a substrate mount type linear member 210 connected to the GND pattern of a substrate is disposed in the place where the insulated wire and primary power supply circuit 240 are close to each other, and part of the linear member surrounds the insulated wire. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、電子写真プロセスを用いた複写機、レーザビームプリンタ、ファクシミリ等の画像記録装置に関し、特にその高圧電線の配置に関するものである。   The present invention relates to an image recording apparatus such as a copying machine, a laser beam printer, and a facsimile using an electrophotographic process, and more particularly to the arrangement of high voltage electric wires.

従来、レーザビームプリンタ等の画像記録装置においては、レーザ光等によって描かれた潜像を現像するための現像装置と、現像されたトナー像を転写材に転写するための転写装置と、転写されたトナー像を転写材上に定着するためのＡＣ電源駆動によるヒータ等を備えた定着器によって構成されたものが主流となっている。   Conventionally, in an image recording apparatus such as a laser beam printer, a developing device for developing a latent image drawn by a laser beam or the like, a transfer device for transferring a developed toner image to a transfer material, and a transfer device. The mainstream is a fixing device provided with a heater or the like driven by an AC power source for fixing the toner image on the transfer material.

なお、これらの現像装置、転写装置には数ｋＶの電圧を出力する高圧電源回路で生成された電圧が印加されており、現像装置、転写装置との接続には高圧用の電線を使用している。   A voltage generated by a high-voltage power supply circuit that outputs a voltage of several kV is applied to these developing device and transfer device, and a high-voltage electric wire is used for connection to the developing device and transfer device. Yes.

また、高圧電源回路と、商用ＡＣ電源につながる一次電源回路との間には規格上沿面距離を要求されている。   Further, a creepage distance is required in the standard between the high-voltage power supply circuit and the primary power supply circuit connected to the commercial AC power supply.

たとえばＴＵＶ規格（ドイツ安全規格）では高圧電源回路部と一次電源回路部等、たとえばヒータ用の電線との間には沿面距離が必要との規定が設けられている。ＴＵＶの規格上では高圧電源回路と一次電源回路との間には１０００Ｖあたり２０ｍｍ（強化絶縁）が要求されており、従来はこの規格を満足させるために必要な沿面距離を確保して対応していた。また、沿面距離に対する対策を行なっていた（特許文献１参照）。   For example, in the TUV standard (German safety standard), there is a provision that a creepage distance is required between a high-voltage power supply circuit unit and a primary power supply circuit unit, for example, a heater wire. According to the TUV standard, 20 mm per 1000 V (reinforced insulation) is required between the high-voltage power supply circuit and the primary power supply circuit. Conventionally, the creepage distance necessary to satisfy this standard is ensured. It was. Moreover, the countermeasure against creepage distance was taken (refer patent document 1).

ここでＴＵＶ規格で要求される沿面距離について説明する。
この規格を説明するための図を図８に示す。
図示のように、高圧用電線２２０と、一次電源回路の電線、たとえばヒータに接続された被覆材の耐圧が高圧用電線に印加される電圧以下のヒータ電線２４０とが交差し接触する場合について説明する。この場合、ヒータ電線２４０と高圧用電線２２０の接触点から高圧用電線２２０に沿って高圧用電線２２０のコネクタ部まで沿面距離を確保しなければならない。ＴＵＶ規格ではこれらの電圧の電圧差を計算し、計算した値１ｋＶあたりの必要沿面距離は２０ｍｍであると規定されている。
たとえば高圧用電線２２０の片側に−５ｋＶの高電圧が印加され、ヒータ電線２４０には１００Ｖの一次電圧が印加される場合を考えると、高圧用電線２２０の被覆を伝わって必要な沿面距離は以下となる。
必要沿面距離＝（０．１ｋＶ−（−５ｋＶ））÷１ｋＶ×２０ｍｍ＝１０２ｍｍ
なお、同一基板上に高圧電源回路部と一次電源回路部が存在する場合、基板上の対策としてこれら高圧電源回路部と一次電源回路部との間にＧＮＤパターンを設けたり、また、ＧＮＤに接続されたジャンパー線を設けたりしている。
特開２００４−３４７７２８号公報（図８参照） Here, the creepage distance required by the TUV standard will be described.
A diagram for explaining this standard is shown in FIG.
As shown in the figure, the case where the high-voltage electric wire 220 and the electric wire of the primary power supply circuit, for example, the heater electric wire 240 whose withstand voltage of the covering material connected to the heater is equal to or lower than the voltage applied to the high-voltage electric wire intersects and contacts is described. To do. In this case, it is necessary to ensure a creepage distance from the contact point between the heater wire 240 and the high-voltage wire 220 to the connector portion of the high-voltage wire 220 along the high-voltage wire 220. In the TUV standard, the voltage difference between these voltages is calculated, and the required creepage distance per calculated value of 1 kV is defined as 20 mm.
For example, considering a case where a high voltage of −5 kV is applied to one side of the high-voltage electric wire 220 and a primary voltage of 100 V is applied to the heater electric wire 240, the necessary creepage distance through the coating of the high-voltage electric wire 220 is as follows: It becomes.
Necessary creepage distance = (0.1 kV − (− 5 kV)) ÷ 1 kV × 20 mm = 102 mm
If a high-voltage power supply circuit unit and a primary power supply circuit unit exist on the same substrate, a GND pattern may be provided between the high-voltage power supply circuit unit and the primary power supply circuit unit as a countermeasure on the substrate, or connected to GND. A jumper wire is provided.
JP 2004-347728 A (see FIG. 8)

前述のような構成において、たとえばＴＵＶ規格で定められた沿面距離の規格を満足させるためには、この規格で要求される距離を確保させるためだけに必要以上に画像記録装置自体を大きくしなくてはならなかった。
これにより、ユーザからは画像記録装置の小型化が要求されているにもかかわらず、小型化ができず、また、沿面距離を確保するための対策にコストもかかってしまうといった問題があった。 In the above-described configuration, for example, in order to satisfy the creepage distance standard defined in the TUV standard, the image recording apparatus itself must be made larger than necessary only to ensure the distance required by this standard. I didn't.
As a result, there is a problem in that the user cannot reduce the size of the image recording apparatus even though the user demands a reduction in the size of the image recording apparatus, and the cost for securing the creepage distance increases.

本発明は、このような状況のもとでなされたもので、高圧用電線と一次電源回路との沿面距離が必要とならず、小型化が可能な画像記録装置を提供することを課題とするものである。   The present invention has been made under such circumstances, and it is an object of the present invention to provide an image recording apparatus that does not require a creeping distance between the high-voltage electric wire and the primary power supply circuit and can be miniaturized. Is.

前記課題を解決するため、本発明では、画像記録装置を次の（１）のとおりに構成する。   In order to solve the above-mentioned problems, in the present invention, an image recording apparatus is configured as follows (1).

（１）一次電源回路と高圧電源回路とを備え、前記高圧電源回路の出力を絶縁電線を介して負荷に供給する画像記録装置において、
前記絶縁電線と前記一次電源回路の近接箇所に、基板のＧＮＤパターンに接続された基板取り付けタイプの線状部材を配置し、前記線状部材の一部で前記絶縁電線を囲む画像記録装置。 (1) In an image recording apparatus comprising a primary power supply circuit and a high-voltage power supply circuit, and supplying an output of the high-voltage power supply circuit to a load via an insulated wire,
An image recording apparatus in which a board-mounting type linear member connected to a GND pattern of a board is disposed in a vicinity of the insulated wire and the primary power supply circuit, and the insulated wire is surrounded by a part of the linear member.

本発明によれば、前述の線状部材を用いることにより、高圧用絶縁電線と一次電源回路との沿面距離が必要とならず、画像記録装置自体の小型化が可能となる。また、プリント基板上に前述の線状部材を設けることで他のメカ部品等々への影響もなくなり、高圧用電線の保持部材が不要となり安いコストで対策が可能となる。   According to the present invention, by using the above-described linear member, the creeping distance between the high-voltage insulated wire and the primary power supply circuit is not required, and the image recording apparatus itself can be miniaturized. Further, by providing the above-mentioned linear member on the printed circuit board, there is no influence on other mechanical parts and the like, and a holding member for the high-voltage electric wire becomes unnecessary, so that measures can be taken at a low cost.

本発明を実施するための最良の形態を、実施例により詳しく説明する。   The best mode for carrying out the present invention will be described in detail with reference to examples.

図２は、実施例１である“電子写真プロセスを用いた画像形成装置”の概略構成を示す断面図であり、レーザビームプリンタの例を示している。   FIG. 2 is a cross-sectional view illustrating a schematic configuration of an “image forming apparatus using an electrophotographic process” according to the first embodiment, and illustrates an example of a laser beam printer.

レーザビームプリンタ本体１０１（以下、本体１０１という）は、記録紙Ｓを収納するカセット１０２を有し、カセット１０２の記録紙Ｓの有無を検知する記録紙有無センサ１０３、カセット１０２の記録紙Ｓのサイズを検知するカセットサイズセンサ１０４（複数個のマイクロスイッチで構成される）、カセット１０２から記録紙Ｓを繰り出す給紙ローラ１０５等が設けられている。そして、給紙ローラ１０５の下流には記録紙Ｓを同期搬送するレジストローラ対１０６が設けられている。また、レジストローラ対１０６の下流にはレーザスキャナ１０７からのレーザ光に基づいて記録紙Ｓ上にトナー像を形成する画像形成部１０８が設けられている。さらに、画像形成部１０８の下流には記録紙Ｓ上に形成されたトナー像を熱定着する定着器１０９が設けられている。定着器１０９の上流には給紙した紙を検知するトップセンサ１５０、定着器１０９の下流には排紙部の搬送状態を検知する排紙センサ１１０、記録紙Ｓを排紙する排紙ローラ１１１、記録の完了した記録紙Ｓを積載する積載トレイ１１２が設けられている。   The laser beam printer main body 101 (hereinafter referred to as the main body 101) has a cassette 102 for storing the recording paper S, a recording paper presence sensor 103 for detecting the presence or absence of the recording paper S in the cassette 102, and a recording paper S in the cassette 102. A cassette size sensor 104 (consisting of a plurality of micro switches) for detecting the size, a paper feed roller 105 for feeding out the recording paper S from the cassette 102, and the like are provided. A registration roller pair 106 that synchronously conveys the recording paper S is provided downstream of the paper supply roller 105. Further, an image forming unit 108 that forms a toner image on the recording paper S based on the laser beam from the laser scanner 107 is provided downstream of the registration roller pair 106. Further, a fixing device 109 that thermally fixes the toner image formed on the recording paper S is provided downstream of the image forming unit 108. A top sensor 150 that detects the fed paper upstream of the fixing device 109, a paper discharge sensor 110 that detects the conveyance state of the paper discharge unit downstream of the fixing device 109, and a paper discharge roller 111 that discharges the recording paper S. A stacking tray 112 on which the recording sheets S for which recording has been completed is stacked is provided.

また、前記レーザスキャナ１０７は、後述する外部装置１３１から送出される画像信号（画像信号ＶＤＯ）に基づいて変調されたレーザ光を発光するレーザユニット１１３、このレーザユニット１１３からのレーザ光を後述する感光ドラム１１７上に走査するためのポリゴンモータ１１４、結像レンズ１１５、折り返しミラー１１６等により構成されている。   The laser scanner 107 emits a laser beam modulated based on an image signal (image signal VDO) sent from an external device 131 (to be described later), and the laser beam from the laser unit 113 is described later. It comprises a polygon motor 114 for scanning on the photosensitive drum 117, an imaging lens 115, a folding mirror 116, and the like.

そして、画像形成部１０８は公知の電子写真プロセスに必要な、感光ドラム１１７、１次帯電ローラ１１９、現像器１２０、転写帯電ローラ１２１、クリーナ１２２等から構成されている。   The image forming unit 108 includes a photosensitive drum 117, a primary charging roller 119, a developing device 120, a transfer charging roller 121, a cleaner 122, and the like necessary for a known electrophotographic process.

なお、後述するエンジンパワーユニット１２６上の高圧電源回路部から出力された数ｋＶの電圧が現像器１２０、転写帯電ローラ１２１に印加されており、これらの接続にはバネ接点や高圧用電線（絶縁電線）を用いている。本構成ではエンジンパワーユニット１２６上の基板から現像器１２０には直付けタイプ端子（一端に用いられる導電端子）が圧着された高圧用電線２３０を、転写帯電ローラ１２１には高圧用電線２２０を用いて接続する構成とする。   A voltage of several kV output from a high-voltage power supply circuit section on the engine power unit 126 described later is applied to the developing device 120 and the transfer charging roller 121, and these connections are made by spring contacts or high-voltage wires (insulated wires). ) Is used. In this configuration, a high-voltage electric wire 230 in which a direct attachment type terminal (conductive terminal used at one end) is pressure-bonded from the substrate on the engine power unit 126 to the developing device 120 is used, and a high-voltage electric wire 220 is used for the transfer charging roller 121. It is assumed to be connected.

また、エンジンパワーユニット１２６上にはＧＮＤパターンに直接接続された転写バネ（線状部材）２１０が実装されており高圧用電線２２０を１ｍｍ以内の距離内で挟むような構成となっている。
定着器１０９は、定着フィルム１０９ａ、加圧ローラ１０９ｂ、定着フィルム内部に設けられた発熱体を備えたセラミックヒータ１０９ｃ、セラミックヒータ１０９ｃの発熱体毎の表面温度を検出するサーミスタ１０９ｄから構成されている。また、セラミックヒータ１０９ｃとエンジンパワーユニット１２６との接続にはヒータ電線２４０が使用されている。 A transfer spring (linear member) 210 directly connected to the GND pattern is mounted on the engine power unit 126 so that the high-voltage electric wire 220 is sandwiched within a distance of 1 mm or less.
The fixing device 109 includes a fixing film 109a, a pressure roller 109b, a ceramic heater 109c having a heating element provided inside the fixing film, and a thermistor 109d that detects the surface temperature of each heating element of the ceramic heater 109c. . A heater wire 240 is used to connect the ceramic heater 109c and the engine power unit 126.

また、メインモータ１２３は、給紙ローラ１０５には給紙ソレノイド１２４を介して、レジストローラ対１０６にはレジクラッチ１２５を介して、搬送ローラ対１４０には搬送クラッチ１４３を介して駆動力を与えている。さらに感光ドラム１１７を含む画像形成部１０８の各ユニット、定着器１０９、排紙ローラ１１１にも駆動力を与えている。   The main motor 123 applies driving force to the paper feed roller 105 via the paper feed solenoid 124, the registration roller pair 106 via the registration clutch 125, and the transport roller pair 140 via the transport clutch 143. ing. Further, a driving force is applied to each unit of the image forming unit 108 including the photosensitive drum 117, the fixing device 109, and the paper discharge roller 111.

また１４２は手差し給紙口であり、手差し紙有り無しセンサ１４１によって手差し口に紙が入れられたかどうかを検知する。   Reference numeral 142 denotes a manual paper feed port, which detects whether or not paper is inserted into the manual feed port by a manual paper presence / absence sensor 141.

そして１２６は、電源回路、高圧電源回路、ＣＰＵおよび周辺回路が実装されたエンジンパワーユニットである。このエンジンパワーユニット１２６はレーザスキャナ１０７、高圧回路部（画像形成部１０８）、定着器１０９の制御および電子写真プロセスの制御、前記本体１０１内の記録紙の搬送制御を行なっている。   Reference numeral 126 denotes an engine power unit on which a power supply circuit, a high-voltage power supply circuit, a CPU, and peripheral circuits are mounted. The engine power unit 126 controls the laser scanner 107, the high-voltage circuit unit (image forming unit 108), the fixing unit 109, the electrophotographic process, and the conveyance control of the recording paper in the main body 101.

そして、１２７はビデオコントローラであり、パーソナルコンピュータ等の外部装置１３１と汎用のインタフェース（セントロニクス、ＲＳ２３２Ｃ等）１３０で接続されており、この汎用インタフェースから送られてくる画像情報をビットデータに展開し、そのビットデータをＶＤＯ信号として、エンジンパワーユニット１２６へ送出している。   Reference numeral 127 denotes a video controller, which is connected to an external device 131 such as a personal computer via a general-purpose interface (Centronics, RS232C, etc.) 130, and develops image information sent from this general-purpose interface into bit data. The bit data is sent to the engine power unit 126 as a VDO signal.

次にエンジンパワーユニット１２６の基板の一部を示した図が図３である。
高圧用電線２２０の片方は基板に直付けされるボードインタイプの端子２２０ａが圧着され、もう一方は転写帯電ローラ（高圧用電線２２０に接続される負荷）１２１用に端子２２０ｂが圧着されている。
また、基板上にはＧＮＤパターンに半田付けによって実装接続された転写バネ２１０が備えられている。
エンジンパワーユニット１２６の転写高圧電源回路の出力部に高圧用電線２２０のボードインタイプの端子２２０ａが実装されており、端子２２０ｂは転写帯電ローラに接続されている。また、高圧用電線２２０は転写バネ２１０に挟み込まれている。
この転写バネ２１０を高圧用電線２２０に組み込んだ断面を模式的に示したものが図４である。
図示のように高圧用電線２２０を間隙１ｍｍ以内で挟み込むような構成をし、かつ基板上のＧＮＤパターンに半田付けによって実装接続された転写バネ２１０が備えられている。
このようなバネを設けることで沿面距離を考えることなく設計を行なえ、画像記録装置本体の小型化につながる。 Next, FIG. 3 shows a part of the substrate of the engine power unit 126.
One of the high-voltage electric wires 220 is crimped with a board-in type terminal 220a directly attached to the substrate, and the other is crimped with a terminal 220b for a transfer charging roller 121 (load connected to the high-voltage electric wire 220). .
A transfer spring 210 is mounted on the substrate and soldered to the GND pattern by soldering.
A board-in type terminal 220a of the high-voltage electric wire 220 is mounted on the output portion of the transfer high-voltage power supply circuit of the engine power unit 126, and the terminal 220b is connected to the transfer charging roller. Further, the high-voltage electric wire 220 is sandwiched between the transfer springs 210.
FIG. 4 schematically shows a cross section in which the transfer spring 210 is incorporated in the high voltage electric wire 220.
As shown in the figure, there is provided a transfer spring 210 that is configured to sandwich the high-voltage electric wire 220 within a gap of 1 mm and is mounted and connected to the GND pattern on the substrate by soldering.
By providing such a spring, the design can be performed without considering the creepage distance, and the image recording apparatus main body can be downsized.

すなわち、図１のように、高圧用電線２２０に、高圧用電線２２０を１ｍｍ以内の間隙で挟み込むようなＧＮＤに接続された導電性端子２１０（たとえば転写バネ）を設けた場合は、たとえば、１０２ｍｍ必要だった沿面距離は、導電性端子２１０とヒータ電線２４０の間の高圧用電線２２０に沿った部分には必要なくなる、という考え方が認められている。ただし、ＧＮＤに接続された導電性端子２１０に高圧用電線２２０のコネクタ部の高圧がリークしないような距離は必要である。
以上の条件を満たせば沿面距離を考慮しなくてよい。 That is, as shown in FIG. 1, when a conductive terminal 210 (for example, a transfer spring) connected to GND is provided on the high-voltage electric wire 220 so as to sandwich the high-voltage electric wire 220 with a gap of 1 mm or less, for example, 102 mm It has been recognized that the necessary creepage distance is no longer necessary in the portion along the high-voltage wire 220 between the conductive terminal 210 and the heater wire 240. However, a distance is necessary so that the high voltage of the connector portion of the high voltage electric wire 220 does not leak to the conductive terminal 210 connected to the GND.
If the above conditions are satisfied, it is not necessary to consider the creepage distance.

そこで、高圧用電線と、一次電源回路の一部であるヒータ電線の近接箇所に、基板のＧＮＤパターンに接続された基板取り付けタイプの転写ばね（線状部材）２１０を配置し、線状部材の一部で高圧用電線を囲むことにより、画像記録装置本体の小型化を図ることができる。   Therefore, a board-mounted transfer spring (linear member) 210 connected to the GND pattern of the substrate is disposed in the vicinity of the high-voltage electric wire and the heater electric wire that is a part of the primary power supply circuit. The image recording apparatus main body can be downsized by partially enclosing the high-voltage electric wire.

なお本実施例では高圧用電線２２０の両端を導電性の端子として説明したが、片方、あるいは両方を基板に直に半田付けしてもよい。   In the present embodiment, the both ends of the high-voltage electric wire 220 are described as conductive terminals, but one or both may be soldered directly to the substrate.

実施例２である“画像記録装置”について説明する。
本実施例の全体構成および転写ばねの構成は実施例１とほぼ同じである。実施例１では転写ばねは、高圧用電線を挟み込む形状を備えた部材であったが、本実施例ではらせん状の形状をした部材で構成する。 An “image recording apparatus” that is Embodiment 2 will be described.
The overall configuration of this embodiment and the configuration of the transfer spring are almost the same as those of the first embodiment. In the first embodiment, the transfer spring is a member having a shape that sandwiches the high-voltage electric wire. However, in this embodiment, the transfer spring is configured by a member having a spiral shape.

本実施例の転写ばねの構成を図５に示す。
転写バネ２１０−２はらせん状のバネ形状を備えて、らせん状のバネに高圧用電線２２０を挟み込む。 The configuration of the transfer spring of this embodiment is shown in FIG.
The transfer spring 210-2 has a spiral spring shape, and the high-voltage wire 220 is sandwiched between the spiral springs.

この転写バネ２１０−２を高圧用電線２２０に組み込んだ断面を模式的に示したものが図６である。
図示のように高圧用電線２２０を間隙１ｍｍ以内で挟み込むような構成とし、かつ基板上のＧＮＤパターンに半田付けによって実装接続された転写バネ２１０が備えられている。 FIG. 6 schematically shows a cross section in which the transfer spring 210-2 is incorporated in the high voltage electric wire 220. As shown in FIG.
As shown in the figure, there is provided a transfer spring 210 that is configured to sandwich the high-voltage electric wire 220 within a gap of 1 mm and that is mounted and connected to the GND pattern on the substrate by soldering.

本実施例によっても実施例１と同様の効果を得ることができる。   The effect similar to Example 1 can be acquired also by a present Example.

実施例３である“画像記録装置”について説明する。
本実施例の全体構成は実施例１と同じであるが、転写バネを高圧電源の実装された基板に半田付けで実装するのではなく、別の基板に半田付け実装する例である。
本実施例の転写ばねを図７に示す。
図示のように転写バネ２１０を、高圧電源回路のあるエンジンパワーユニット１２６ではなく別の基板１２６−２に実装し、高圧用電線２２０を挟み込んでいる。
なお、本実施例は挟み込むバネを用いる例であるが、らせん状のバネおよび他の形状のバネを使ってもよい。 An “image recording apparatus” that is Embodiment 3 will be described.
Although the overall configuration of the present embodiment is the same as that of the first embodiment, the transfer spring is not mounted on the substrate on which the high-voltage power source is mounted by soldering but is mounted on another substrate by soldering.
The transfer spring of this embodiment is shown in FIG.
As shown in the figure, the transfer spring 210 is mounted not on the engine power unit 126 having a high-voltage power supply circuit but on another substrate 126-2, and the high-voltage electric wire 220 is sandwiched therebetween.
In addition, although a present Example is an example using the spring to pinch | interpose, you may use a helical spring and the spring of another shape.

本実施例によっても、実施例１と同様の効果を得ることができる。   According to the present embodiment, the same effect as that of the first embodiment can be obtained.

実施例１における沿面距離の説明図Explanatory drawing of creepage distance in Example 1 実施例１のレーザープリンタの構成を示す断面図Sectional drawing which shows the structure of the laser printer of Example 1. 実施例１におけるエンジンパワーユニットの近傍を示す図The figure which shows the vicinity of the engine power unit in Example 1. 転写ばねと高圧用電線の位置関係を模式的に示す図Diagram showing the positional relationship between the transfer spring and the high-voltage wire 実施例２におけるエンジンパワーユニットの近傍を示す図The figure which shows the vicinity of the engine power unit in Example 2. 転写ばねと高圧用電線の位置関係を模式的に示す図Diagram showing the positional relationship between the transfer spring and the high-voltage wire 実施例３におけるエンジンパワーユニットの近傍を示す図The figure which shows the vicinity of the engine power unit in Example 3. ＴＵＶ規格の説明図Illustration of TUV standard

符号の説明Explanation of symbols

１２６ エンジンパワーユニット
２１０ 転写バネ
２２０ 高圧用電線
２４０ ヒータ電線 126 Engine power unit 210 Transfer spring 220 High-voltage wire 240 Heater wire

Claims (5)

一次電源回路と高圧電源回路とを備え、前記高圧電源回路の出力を絶縁電線を介して負荷に供給する画像記録装置において、
前記絶縁電線と前記一次電源回路の近接箇所に、基板のＧＮＤパターンに接続された基板取り付けタイプの線状部材を配置し、前記線状部材の一部で前記絶縁電線を囲むことを特徴とする画像記録装置。 In an image recording apparatus comprising a primary power supply circuit and a high-voltage power supply circuit, and supplying an output of the high-voltage power supply circuit to a load via an insulated wire,
A board-mounting type linear member connected to a GND pattern of a board is disposed in a proximity location of the insulated wire and the primary power supply circuit, and the insulated wire is surrounded by a part of the linear member. Image recording device. 請求項１に記載の画像記録装置において、
前記線状部材は、らせん状の部分を有し、このらせん状の部分で前記絶縁電線を囲むことを特徴とする画像記録装置。 The image recording apparatus according to claim 1,
The linear recording member has a spiral part, and surrounds the insulated wire with the spiral part. 請求項１または２に記載の画像記録装置において、
前記線状部材は、前記高圧電源回路が設けられた基板とは別の基板のＧＮＤパターンに接続されていることを特徴とする画像記録装置。 The image recording apparatus according to claim 1 or 2,
The image recording apparatus, wherein the linear member is connected to a GND pattern of a substrate different from the substrate on which the high-voltage power supply circuit is provided. 請求項１ないし３のいずれかに記載の画像記録装置において、
前記絶縁電線の両端または一端に導電端子を使用することを特徴とする画像記録装置。 The image recording apparatus according to any one of claims 1 to 3,
An image recording apparatus using conductive terminals at both ends or one end of the insulated wire. 請求項１ないし３のいずれかに記載の画像記録装置において、
前記絶縁電線の両端または一端を直接基板のＧＮＤパターンに半田付けすることを特徴とする画像記録装置。 The image recording apparatus according to any one of claims 1 to 3,
An image recording apparatus, wherein both ends or one end of the insulated wire are directly soldered to a GND pattern of a substrate.
JP2007025564A 2007-02-05 2007-02-05 Image forming apparatus Active JP5043458B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007025564A JP5043458B2 (en) 2007-02-05 2007-02-05 Image forming apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007025564A JP5043458B2 (en) 2007-02-05 2007-02-05 Image forming apparatus

Publications (2)

Publication Number Publication Date
JP2008191387A true JP2008191387A (en) 2008-08-21
JP5043458B2 JP5043458B2 (en) 2012-10-10

Family

ID=39751553

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007025564A Active JP5043458B2 (en) 2007-02-05 2007-02-05 Image forming apparatus

Country Status (1)

Country Link
JP (1) JP5043458B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011107506A (en) * 2009-11-19 2011-06-02 Fuji Xerox Co Ltd Feeder system and image forming apparatus
JP2017217859A (en) * 2016-06-09 2017-12-14 京セラドキュメントソリューションズ株式会社 Image formation device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49127756U (en) * 1973-03-03 1974-11-01
JPS63100888U (en) * 1986-12-19 1988-06-30
JPH0252385U (en) * 1988-09-30 1990-04-16
JPH04121792U (en) * 1991-04-17 1992-10-30 株式会社リコー Control board mounting device for electronic equipment
JPH04329554A (en) * 1991-05-01 1992-11-18 Ricoh Co Ltd Plain paper recorder
JPH07325443A (en) * 1994-06-01 1995-12-12 Canon Inc Image forming device
JP2002052780A (en) * 2000-08-07 2002-02-19 Ricoh Co Ltd Conducting/connecting structure of high voltage power supply

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49127756U (en) * 1973-03-03 1974-11-01
JPS63100888U (en) * 1986-12-19 1988-06-30
JPH0252385U (en) * 1988-09-30 1990-04-16
JPH04121792U (en) * 1991-04-17 1992-10-30 株式会社リコー Control board mounting device for electronic equipment
JPH04329554A (en) * 1991-05-01 1992-11-18 Ricoh Co Ltd Plain paper recorder
JPH07325443A (en) * 1994-06-01 1995-12-12 Canon Inc Image forming device
JP2002052780A (en) * 2000-08-07 2002-02-19 Ricoh Co Ltd Conducting/connecting structure of high voltage power supply

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011107506A (en) * 2009-11-19 2011-06-02 Fuji Xerox Co Ltd Feeder system and image forming apparatus
JP2017217859A (en) * 2016-06-09 2017-12-14 京セラドキュメントソリューションズ株式会社 Image formation device

Also Published As

Publication number Publication date
JP5043458B2 (en) 2012-10-10

Similar Documents

Publication Publication Date Title
US10845740B2 (en) Temperature detector, heating device, fixing device, and image forming apparatus
US20210041817A1 (en) Image forming apparatus
US8638352B2 (en) Exposure device including an exposure unit and an electrical connection member and an image forming apparatus
JP3953006B2 (en) Image reading apparatus and multi-function machine equipped with the same
JP5043458B2 (en) Image forming apparatus
JP5247116B2 (en) Image forming apparatus
JP5356294B2 (en) Electrical connection structure and image forming apparatus having the same
JP4545905B2 (en) Fixing device
EP2717064A1 (en) Differential transformer type magnetic sensor and image forming apparatus
US10983464B2 (en) Image heating device with first and second groups of conductors having different widths, and image forming apparatus
JP2019191419A (en) Fixing device and image forming apparatus
CN110018622B (en) Electric connection structure and image forming apparatus
JP2006258877A (en) Induction heating fixing device
US9453816B2 (en) Differential transformer type magnetic sensor and image forming apparatus
JP2007052176A (en) Image forming apparatus
JP2002299014A (en) Heat source, heating device and imaging device
JP2021086068A (en) Image forming apparatus
JP2006059875A (en) High voltage power supply unit used for image forming device
JP4617120B2 (en) Image forming apparatus
US11947296B2 (en) Nip forming device and image forming apparatus
JP2018010198A (en) Fixing device and image forming apparatus
JP2008147301A (en) Piezoelectric transformer high-voltage power supply
JP2020079936A (en) Image forming apparatus
JP2005353546A (en) Power source connecting mechanism
JP2002258640A (en) Image forming apparatus

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20100205

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20111117

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20111122

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120112

RD05 Notification of revocation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7425

Effective date: 20120125

RD03 Notification of appointment of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7423

Effective date: 20120208

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120710

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120712

R151 Written notification of patent or utility model registration

Ref document number: 5043458

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150720

Year of fee payment: 3