JPH0477758A - Electrophotographic image forming device - Google Patents
Electrophotographic image forming deviceInfo
- Publication number
- JPH0477758A JPH0477758A JP2191780A JP19178090A JPH0477758A JP H0477758 A JPH0477758 A JP H0477758A JP 2191780 A JP2191780 A JP 2191780A JP 19178090 A JP19178090 A JP 19178090A JP H0477758 A JPH0477758 A JP H0477758A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- fixing
- image forming
- processing speed
- paper type
- 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
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
- G03G2215/00919—Special copy medium handling apparatus
- G03G2215/00949—Copy material feeding speed switched according to current mode of the apparatus, e.g. colour mode
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/20—Details of the fixing device or porcess
- G03G2215/2003—Structural features of the fixing device
- G03G2215/2045—Variable fixing speed
Landscapes
- Fixing For Electrophotography (AREA)
- Paper Feeding For Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は電子写真画像形成装置に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to an electrophotographic image forming apparatus.
従来、この種の電子写真画像形成装置は、一定の処理速
度を有しており、定着部における処理（温度及び圧力）
も一定に設定されているなめ、用紙の種類が異なると定
着強度も異なっていた。Conventionally, this type of electrophotographic image forming apparatus has a fixed processing speed, and the processing (temperature and pressure) in the fixing section
The fusing strength was also set to be constant, and the fusing strength was different for different types of paper.
■述した従来の電子写真画像形成装置は、用紙種類に関
らず定着能力が限定されるため、はがきや封筒等の熱容
量の大きい厚紙においては、用紙に熱が吸収されるため
、トナーに十分な熱か与えられず定着不良を起こし易い
という欠点がある。■The conventional electrophotographic image forming apparatus described above has limited fixing ability regardless of the paper type, so when using thick paper with a large heat capacity such as postcards and envelopes, the paper absorbs heat, so the toner does not have enough The drawback is that it does not provide sufficient heat and tends to cause poor fixing.
本発明は、静電潜像担持体上の静電潜像を現像する現像
手段と、前記静電潜像担持体上に現像されたトナーを用
紙に転写する転写手段と、転写された前記用紙を定着す
る定着手段と、前記転写手段及び前記定着手段に前記用
紙を給送する給送手段と、給送される前記用紙の種別を
認識する用紙種別認識手段と、前記用紙種別認識手段か
ら出力された用紙種別信号に基づいて前記現像手段、前
記転写手段、前記定着手段及び前記給送手段か所定の速
度で処理するように制御する制御手段より構成されてい
る。The present invention provides a developing means for developing an electrostatic latent image on an electrostatic latent image carrier, a transfer means for transferring the toner developed on the electrostatic latent image carrier onto a sheet of paper, and a transfer means for transferring the toner developed on the electrostatic latent image carrier to a sheet of paper. a fixing means for fixing the paper, a feeding means for feeding the paper to the transfer means and the fixing means, a paper type recognition means for recognizing the type of the paper to be fed, and an output from the paper type recognition means. The apparatus includes a control means for controlling the developing means, the transferring means, the fixing means, and the feeding means to perform processing at a predetermined speed based on the paper type signal.
次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の一実施例を示す断面概略図である。第
１図において、静電潜像担持体である感光ドラム］は、
矢印Ａの回転方向に図示しない駆動系により回転駆動さ
れて回転運動を行ない、その外周表面に対向して回転方
向に従い帯電手段であるメインチャージャ２、露光手段
であるレーザスキャナ３．現像器４及び転写手段である
転写チャージャ５ クリーナ６を配している。また、カ
ッ１〜された用紙７は用紙ホッパ８に積載され、給送ロ
ーラ９により一枚つつ転写チＡ・−ジャ５の転写領域に
給送され、その後定着手段である定着器】０に達する。FIG. 1 is a schematic cross-sectional view showing one embodiment of the present invention. In FIG. 1, the photosensitive drum, which is an electrostatic latent image carrier, is
A main charger 2, which is a charging means, and a laser scanner 3, which is an exposure means, are rotatably driven by a drive system (not shown) in the rotational direction of an arrow A to perform a rotational movement. A developing device 4, a transfer charger 5 serving as a transfer means, and a cleaner 6 are arranged. Further, the cut sheets 7 are stacked in a paper hopper 8, and are fed one by one to the transfer area of the transfer roller 5 by a feeding roller 9, and then transferred to a fixing device 0, which is a fixing means. reach
更に、用紙種別認識８！４構１１は制御部１２に接続さ
れており、この制御部１２は図示しない駆動系、メイン
チャージャ２．レー→り゛スキャナ３及び転写チャージ
ャ５の動作タイミングを制御する。Further, the paper type recognition 8!4 mechanism 11 is connected to a control section 12, which is connected to a drive system (not shown) and a main charger 2. The operation timing of the laser scanner 3 and transfer charger 5 is controlled.
次に動作を順を追って説明する。感光トラ１．１はその
外周をメインチャージャ２により所定の電位に一様に帯
電され、矢印Ａの方向に回転移動を行ない、レーザスキ
ャナ３により形成すべき画像パターンに従ってレーザ光
が照射され静電潜像を形成する。形成された静電潜像は
、現像器４においてトナーにより現像される。一方、感
光ドラムと各処理のタイミングに同期し、用紙ホッパ８
に積載された用紙７は給送ローラ９にり転写チャージャ
５と感光ドラム１との対向する間隙へと給送される。転
写チャージャ５は給送された用紙７を介して感光ドラム
１の外周表面に対してコロナ放電を行ない、感光ドラム
１の外周表面に形成されたｌ−ナー像を用紙７に転写す
る。転写を終了した感光ドラム１は、更に矢印Ａの方向
に回転し、クリーナ６によりその外周表面を清掃され、
再び最初の帯電工程へと移行し、画像形成動作を継続す
る。また、転写を終了した用紙７は、定着器１０に搬送
され、熱と圧力によって定着された後、装置外へ排出さ
れ画像形成動作を終了する。Next, the operation will be explained step by step. The photosensitive drum 1.1 has its outer periphery uniformly charged to a predetermined potential by the main charger 2, rotates in the direction of arrow A, and is irradiated with laser light according to the image pattern to be formed by the laser scanner 3, thereby increasing the electrostatic charge. Form a latent image. The formed electrostatic latent image is developed with toner in a developing device 4. Meanwhile, the paper hopper 8 is synchronized with the photosensitive drum and the timing of each process.
The paper 7 stacked on the transfer roller 9 is fed to a gap between the transfer charger 5 and the photosensitive drum 1, where the transfer charger 5 and the photosensitive drum 1 face each other. The transfer charger 5 performs corona discharge on the outer circumferential surface of the photosensitive drum 1 via the fed paper 7, and transfers the l-ner image formed on the outer circumferential surface of the photosensitive drum 1 onto the paper 7. After the transfer, the photosensitive drum 1 further rotates in the direction of arrow A, and its outer peripheral surface is cleaned by the cleaner 6.
The process returns to the first charging step, and the image forming operation continues. Further, the paper 7 on which the transfer has been completed is conveyed to the fixing device 10, where it is fixed by heat and pressure, and then ejected from the apparatus to complete the image forming operation.
ここで、上述した画像形成動作を開始する前に、用紙種
別認識機構１１は、使用する用紙７の種別を詔、識し、
用紙種別信号を制御部１２に発信する。Here, before starting the image forming operation described above, the paper type recognition mechanism 11 determines and recognizes the type of paper 7 to be used, and
A paper type signal is transmitted to the control section 12.
用紙種別信号を受信した制御部１２は、予め定めである
種々の用紙について定着に最適な処理速度になるように
駆動系を制御し、更に、メインチャージャ２．レーザス
キヤナ３及び転写チャージャ５の作動タイミングを制御
する。このような構成にすると、例えば、はがき等の厚
紙を使用する場合には、通常、よく使用され速量５５ｋ
ｇ用紙の場合よりも処理速度を遅くすることによって、
定着時間を伸ばし、定着強度を上げることかできる。Upon receiving the paper type signal, the control unit 12 controls the drive system so that the processing speed is optimal for fixing various predetermined papers, and further controls the main charger 2. The operation timing of the laser scanner 3 and transfer charger 5 is controlled. With this configuration, for example, when using thick paper such as postcards, the speed is 55k, which is commonly used.
By making the processing speed slower than for g-paper,
It is possible to extend the fixing time and increase the fixing strength.
以上説明したように本発明は、使用する用紙により処理
速度を可変制御するように構成したことにより、用紙の
厚さに関係することもなく安定した定着強度を得ること
ができる。As described above, the present invention is configured to variably control the processing speed depending on the paper used, so that stable fixing strength can be obtained regardless of the thickness of the paper.
第１図は本発明の一実施例を示す断面概略図である。
１・・・感光ドラム、２・・・メインチャージャ、３・
・・レーザスキャナ、４・・・現像器、５・・・転写チ
ャージャ、６・・・クリーナ、７・・・用紙、８・・・
用紙ホッパ、９・・・給送ローラ、１０・・・定着器、
１］・・・用紙種別認識機構、１２・・・制御部。FIG. 1 is a schematic cross-sectional view showing one embodiment of the present invention. 1... Photosensitive drum, 2... Main charger, 3...
...Laser scanner, 4...Developer, 5...Transfer charger, 6...Cleaner, 7...Paper, 8...
Paper hopper, 9... feeding roller, 10... fixing device,
1]...Paper type recognition mechanism, 12...Control unit.
Claims (1)
記静電潜像担持体上に現像されたトナーを用紙に転写す
る転写手段と、転写された前記用紙を定着する定着手段
と、前記転写手段及び前記定着手段に前記用紙を給送す
る給送手段と、給送される前記用紙の種別を認識する用
紙種別認識手段と、前記用紙種別認識手段から出力され
た用紙種別信号に基づいて前記現像手段、前記転写手段
、前記定着手段及び前記給送手段が所定の速度で処理す
るように制御する制御手段とを備えたことを特徴とする
電子写真画像形成装置。A developing device for developing the electrostatic latent image on the electrostatic latent image carrier, a transfer device for transferring the toner developed on the electrostatic latent image carrier onto paper, and a fixing device for fixing the transferred paper. feeding means for feeding the paper to the transfer means and the fixing means; paper type recognition means for recognizing the type of the fed paper; and paper type output from the paper type recognition means. An electrophotographic image forming apparatus comprising: a control means for controlling the developing means, the transferring means, the fixing means, and the feeding means to perform processing at a predetermined speed based on a signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2191780A JPH0477758A (en) | 1990-07-19 | 1990-07-19 | Electrophotographic image forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2191780A JPH0477758A (en) | 1990-07-19 | 1990-07-19 | Electrophotographic image forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0477758A true JPH0477758A (en) | 1992-03-11 |
Family
ID=16280416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2191780A Pending JPH0477758A (en) | 1990-07-19 | 1990-07-19 | Electrophotographic image forming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0477758A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007330211A (en) * | 2006-06-19 | 2007-12-27 | Mkv Platech Co Ltd | Watering tube |
| US8336253B2 (en) | 2006-03-16 | 2012-12-25 | Design Technology And Innovation Limited | Irrigation apparatus |
-
1990
- 1990-07-19 JP JP2191780A patent/JPH0477758A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8336253B2 (en) | 2006-03-16 | 2012-12-25 | Design Technology And Innovation Limited | Irrigation apparatus |
| JP2007330211A (en) * | 2006-06-19 | 2007-12-27 | Mkv Platech Co Ltd | Watering tube |
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