JPS62182783A - Image forming device - Google Patents

Image forming device

Info

Publication number
JPS62182783A
JPS62182783A JP2450786A JP2450786A JPS62182783A JP S62182783 A JPS62182783 A JP S62182783A JP 2450786 A JP2450786 A JP 2450786A JP 2450786 A JP2450786 A JP 2450786A JP S62182783 A JPS62182783 A JP S62182783A
Authority
JP
Japan
Prior art keywords
gear
belt
drive
drive motor
photosensitive drum
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
JP2450786A
Other languages
Japanese (ja)
Inventor
Junji Watanabe
渡辺 順児
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 Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP2450786A priority Critical patent/JPS62182783A/en
Publication of JPS62182783A publication Critical patent/JPS62182783A/en
Pending legal-status Critical Current

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  • Fixing For Electrophotography (AREA)

Abstract

PURPOSE:To drive a fixing device with one-side-toothed belt by engaging respective gears of a driving motor and the fixing device with the same toothed surface of the on-side-toothed belt. CONSTITUTION:A gear 22a of a gear train for driving a photosensitive drum 3 is engaged with the upper part of one-side-toothed belt 44, and a gear 21a of a gear row for driving a heat roll 13 is engaged with the lower part. A pulley 42 of a driving motor 41 and gears 22a and 21a of gear rows which drive the heat roll 13 and the photosensitive drum 3 are engaged with the same toothed surface of the one-side-toothed belt 44. When the driving motor 41 is operated, the driving belt 44 is run, and the photosensitive drum 3 is rotated and driven through gear train 22a-22d, a belt 22e, and a gear 22f, and the heat roll 13 is rotated and driven through gear train 21a-21f.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は定着器の駆動方式を改良した画像形成装置を提
供しようとするものである。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention aims to provide an image forming apparatus with an improved fixing device driving method.

〔従来の技術〕[Conventional technology]

画像形成装置たとえば電子複写機には第4図に示すよう
にその本体1を用紙搬送ライン2に沿って上、下に開閉
自在に構成し、用紙搬送時におけるジャム用紙の除去を
容易に行なうことができるようにしたものがある。上記
装置本体1の上部側には感光ドラム3、現像器4.5、
帯電チャーツヤ6、ファン8などが配設され、下部側に
は給紙カセット9.10、転写、剥離チャーゾ11.1
2、ヒートローラ13、排紙ローラ14などが配設され
ている。
An image forming apparatus, for example, an electronic copying machine, has a main body 1 that can be opened and closed upward and downward along a paper conveyance line 2, as shown in FIG. 4, so that jammed paper can be easily removed during paper conveyance. There is something that allows you to do this. On the upper side of the apparatus main body 1, there is a photosensitive drum 3, a developing device 4.5,
A charging charter 6, a fan 8, etc. are arranged, and a paper feed cassette 9.10, a transfer and peeling charter 11.1 are provided on the lower side.
2, a heat roller 13, a paper discharge roller 14, etc. are provided.

また、上記装置本体1の上部側には、第1および第2の
駆動モータ14.15が配設されている。前記第1の、
駆動モータ14は2軸モータで、その−軸に上記ファン
8が取付けられ、他軸にはプーリ16、ベルト17、プ
ーリ18゜19を介し上、下部の各現像器4.5の現像
ローラ4m、5hが選択的に接続されるようになってい
る。
Furthermore, first and second drive motors 14 and 15 are disposed on the upper side of the apparatus main body 1. said first;
The drive motor 14 is a two-axis motor, and the fan 8 is attached to its negative axis, and the developing rollers 4m of the upper and lower developing units 4.5 are connected to the other axis via a pulley 16, a belt 17, and pulleys 18 and 19. , 5h are selectively connected.

また、上記第2の、駆動モータ15にはそのプーリ19
、v、vJベルト20を介して上記装置本体1の下部側
に配設されたヒートローラ13の駆動用歯車列21a〜
211が接続されている。
Further, the second drive motor 15 has a pulley 19 thereon.
, v, vJ belt 20, the drive gear train 21a~ of the heat roller 13 disposed on the lower side of the apparatus main body 1.
211 is connected.

上記ヒートローラ13の駆動用歯車21aは上記装置本
体1の開閉操作を妨げることのな−ように駆動ベルト2
θの外面側の歯に噛み合されて層る。
The drive gear 21a of the heat roller 13 is connected to the drive belt 21a so as not to interfere with the opening/closing operation of the device main body 1.
It meshes with the teeth on the outer surface of θ and forms a layer.

また、上記5駆動ベルト20の上部側の外面歯には歯車
列22&〜22dおよびベルト22eさらに歯車221
を介して上記感光ドラム3が接続されている。
Furthermore, gear trains 22&~22d, belt 22e, and gear 221 are provided on the upper outer teeth of the 5 drive belt 20.
The photosensitive drum 3 is connected via.

なお、図中24は光学系で、この光学系24は露光ラン
プ25、第1〜第3のミラー26〜28、レンズ29お
よび第4〜第6のミラー30〜32によって構成されて
いる。
In addition, in the figure, 24 is an optical system, and this optical system 24 is comprised by the exposure lamp 25, the 1st - 3rd mirror 26-28, the lens 29, and the 4th - 6th mirror 30-32.

しかして、画像形成時には光学系によシ原稿台33にセ
ットされた原稿に光が走査され、その反射光が第1〜第
3のミラー26〜28、レン、e29および第4〜第6
のミラー30〜32を介して感光ドラム3に結像される
。感光ドラム3は帯電チャージャ6により予め帯電され
前記結像により静電潜像が形成される。
During image formation, light is scanned by the optical system onto the document set on the document table 33, and the reflected light is transmitted to the first to third mirrors 26 to 28, the lens, e29, and the fourth to sixth mirrors.
The image is formed on the photosensitive drum 3 via the mirrors 30 to 32. The photosensitive drum 3 is charged in advance by a charging charger 6, and an electrostatic latent image is formed by the image formation.

一方、第1の駆動モータ14の作動によりファン8が回
転されるとともに上、下部いずれかの現像器4 、5V
cより上記感光ドラム3の静;潜像が現像される。また
、第2の、駆動モータ15の作動により、駆動ベルト2
θが走行され0、ギア列21th〜211を介してヒー
トローラ13が回転駆動されるとともにギア列22&〜
22d、ベルトeおよびギア221−f介して感光ドラ
ム3が回転駆動される。上記感光ドラム3の回転だより
画像は転写チャーツヤ1ノで給紙カセツ)9.10から
送られた用紙に転写され剥離チャージャ12で剥離され
たのち搬送ベルト34を介してヒートローラ13に送ら
れ、このヒートローラ130回転により画像が定着され
る。この画像が定着された用紙は排紙ロー214により
排出される。
On the other hand, the fan 8 is rotated by the operation of the first drive motor 14, and either the upper or lower developing device 4, 5V
From step c, the static latent image on the photosensitive drum 3 is developed. In addition, by the operation of the second drive motor 15, the drive belt 2
θ is running at 0, the heat roller 13 is rotationally driven via the gear trains 21th to 211, and the gear trains 22&~
The photosensitive drum 3 is rotationally driven via the belt 22d, the belt e, and the gear 221-f. The image from the rotation of the photosensitive drum 3 is transferred to the paper fed from the paper feeding cassette (9.10) by the transfer charter 1, peeled off by the peeling charger 12, and then sent to the heat roller 13 via the conveyor belt 34. , the image is fixed by 130 rotations of this heat roller. The paper on which this image is fixed is ejected by a paper ejection row 214.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

しかしながら、従来においては、駆動ベルト20の内面
側の歯に、駆動モータ150プーリ19を噛み合せ、外
面側の歯にヒートローラ5駆動用のギア21hを噛み合
せて駆動するため1、駆動ベルト15としては第5図に
示すような両歯のベルトが必要とされていた。市の両歯
のベルトは片線のベルトに比較し、コスト的に3〜5倍
程度高くなるとともに構造的に送り精度が低下するとい
りた問題点があった。
However, conventionally, the drive motor 150 pulley 19 is engaged with the teeth on the inner surface of the drive belt 20, and the gear 21h for driving the heat roller 5 is engaged with the teeth on the outer surface. A double-toothed belt as shown in Figure 5 was required. Compared to single-line belts, double-toothed belts are 3 to 5 times more expensive and have structural problems such as lower feeding accuracy.

本発明は上記事情に着目してなされ九もので、その目的
とするところは、片線の駆動ベルトによって定着器を駆
動できるようにした安価で駆動精度の高い画像形成装置
を提供しようとするものである。
The present invention has been made in view of the above-mentioned circumstances, and its object is to provide an inexpensive image forming apparatus with high drive accuracy in which a fixing device can be driven by a single-wire drive belt. It is.

〔問題点を解決するための手段〕[Means for solving problems]

本発明は上記目的を達成するため、駆動モータおよび定
着器の各駆動歯車をそれぞれ歯付ベルトの同−歯面忙噛
み合せてなるもので、ある。
In order to achieve the above object, the present invention comprises a drive motor and a drive gear of a fixing device, each of which is closely engaged with the same tooth surface of a toothed belt.

〔作用〕[Effect]

前記手段により、片線のベルトで定着器の駆動を可能と
する。
With the above means, it is possible to drive the fixing device with a single-line belt.

〔実施例〕〔Example〕

以下、本発明を第1図乃至第3図忙示す一実施例を参照
して説明する。なお、第4図で示した部分と同一部分に
ついては同一番号を付してその説明を省略する。図中4
1は装置本体Jの上部側に設けられた駆動モータで、こ
の駆動モータ41の回転軸にはプーリ(歯車)42が取
着されている。また、43a〜43aは上記装置本体1
の上部側に配設された複数個のアイドラーで、これらア
イドラー43a〜43cおよび上記駆動モータ41のプ
ーリ42には第3図に示すような片線ベルト44が掛は
渡されている。そして、この片線ベルト44の上部側に
は感光ドラム3駆動用の歯車列の歯車22hが噛み合さ
れ、下部側にはヒートロー213駆動用の歯車列の歯車
21mが噛み合されている。
The present invention will be described below with reference to an embodiment shown in FIGS. 1 to 3. Note that the same parts as those shown in FIG. 4 are given the same numbers and their explanations are omitted. 4 in the diagram
Reference numeral 1 denotes a drive motor provided on the upper side of the apparatus main body J, and a pulley (gear) 42 is attached to the rotating shaft of this drive motor 41. In addition, 43a to 43a are the device main body 1
A single line belt 44 as shown in FIG. 3 is passed around these idlers 43a to 43c and the pulley 42 of the drive motor 41. A gear 22h of a gear train for driving the photosensitive drum 3 is meshed with the upper side of the single-wire belt 44, and a gear 21m of a gear train for driving the heat row 213 is meshed with the lower side.

上記駆動モータ41のプーリ42およびヒートローラ1
3さらに感光ドラム3駆動用の歯屯列の各歯車22m+
21mは上記片線ベルト44の同一歯面に噛み合されて
いる。
Pulley 42 of the drive motor 41 and heat roller 1
3 Furthermore, each gear of the gear train for driving the photosensitive drum 3 is 22m+
21m is meshed with the same tooth surface of the one-line belt 44.

しかして、上記原動モータ41が作動すると駆動ベルト
44が走行され、歯車列22&〜22dベルト226、
歯車22fを介して感光ドラム3が回転、駆動されると
ともに、歯屯列21h 〜21f’Fr:介してヒート
ローラ13が回転、駆動されることになる。
When the drive motor 41 operates, the drive belt 44 runs, and the gear train 22&~22d belt 226,
The photosensitive drum 3 is rotated and driven via the gear 22f, and the heat roller 13 is also rotated and driven via the tooth rows 21h to 21f'Fr:.

上述したように、駆動モータ41のプーリ42とヒート
ローラ13駆動用の歯車21を駆動ベルト44の同−歯
面に噛み合せるため、1駆動ヘルド44として片線ベル
トヲ用いることができ、コストを低減できるとともに駆
動精度を向上できる利点がある。
As described above, since the pulley 42 of the drive motor 41 and the gear 21 for driving the heat roller 13 are engaged with the same tooth surface of the drive belt 44, a single-wire belt can be used as one drive heald 44, reducing costs. This has the advantage of improving driving accuracy.

なお、本発明は上記一実施例に限られるものではなく、
その要旨の範囲内で種々変形実施できることは勿論であ
る。
Note that the present invention is not limited to the above embodiment,
Of course, various modifications can be made within the scope of the gist.

〔発明の効果〕〔Effect of the invention〕

以上説明したように、本発明によれば、片線ベルトによ
り、定着器を駆動させることができ、コストを著しく低
減できるとともに駆動精度も向上させることができると
いう効果を奏するものである。
As described above, according to the present invention, the fixing device can be driven by a single-line belt, and it is possible to significantly reduce costs and improve driving accuracy.

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

第1図乃至第3図は本発明の一実施例を示すもので、第
1図は電子複写機の駆動系を示す構成図、第2図は電子
複写機の内部構成図、第3図は駆動ベルトを示す側面図
、第4図は従来の1・・・装置本体、12・・・ヒート
ローラ、27 a ’ +22m・・・歯車、41・・
・駆動モータ、44・・・、嘔劾ベルト。 出願人代理人  弁理士 鈴 江 武 彦第3図 第5図
1 to 3 show an embodiment of the present invention. FIG. 1 is a configuration diagram showing the drive system of an electronic copying machine, FIG. 2 is an internal configuration diagram of the electronic copying machine, and FIG. A side view showing the drive belt, FIG. 4 shows the conventional 1... device main body, 12... heat roller, 27 a'+22m... gear, 41...
- Drive motor, 44..., belt. Applicant's agent Patent attorney Takehiko Suzue Figure 3 Figure 5

Claims (1)

【特許請求の範囲】[Claims] 上、下部に開閉自在な装置本体と、この装置本体の上部
側に設けられた駆動モータと、上記装置本体の下部側に
設けられた定着器とを備え、前記駆動モータの動力を該
駆動モータの歯車および歯付ベルトを介して上記定着器
の歯車に伝達し該定着器を駆動するものにおいて、上記
駆動モータおよび定着器の各歯車を上記歯付ベルトの同
一歯面に噛み合せたことを特徴とする画像形成装置。
The device includes a main body that can be opened and closed at the top and bottom, a drive motor provided on the top side of the device main body, and a fixing device provided on the bottom side of the device main body, and the power of the drive motor is transferred to the drive motor. The drive motor and the gears of the fixing device are meshed with the same tooth surface of the toothed belt. image forming apparatus.
JP2450786A 1986-02-06 1986-02-06 Image forming device Pending JPS62182783A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2450786A JPS62182783A (en) 1986-02-06 1986-02-06 Image forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2450786A JPS62182783A (en) 1986-02-06 1986-02-06 Image forming device

Publications (1)

Publication Number Publication Date
JPS62182783A true JPS62182783A (en) 1987-08-11

Family

ID=12140092

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2450786A Pending JPS62182783A (en) 1986-02-06 1986-02-06 Image forming device

Country Status (1)

Country Link
JP (1) JPS62182783A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02174453A (en) * 1988-12-27 1990-07-05 Toshiba Corp Private branch of exchange

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02174453A (en) * 1988-12-27 1990-07-05 Toshiba Corp Private branch of exchange

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