JPH0481782A - Main charger - Google Patents
Main chargerInfo
- Publication number
- JPH0481782A JPH0481782A JP19561890A JP19561890A JPH0481782A JP H0481782 A JPH0481782 A JP H0481782A JP 19561890 A JP19561890 A JP 19561890A JP 19561890 A JP19561890 A JP 19561890A JP H0481782 A JPH0481782 A JP H0481782A
- Authority
- JP
- Japan
- Prior art keywords
- charger
- cleaner
- case
- electrophotographic recording
- recording device
- 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
- 230000007246 mechanism Effects 0.000 claims abstract description 4
- 230000007547 defect Effects 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract description 4
- 108091008695 photoreceptors Proteins 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、電子写真式記録装置の感光体に−様な帯電を
与えるメインチャージャに関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a main charger that applies a similar charge to a photoreceptor of an electrophotographic recording device.
従来、電子写真式記録装置のメインチャージャは、被帯
電部に対向して開口部を有し、その長手方向にチャージ
ャ線が張り渡され、このチャージャ線の電荷を感光体に
作用させて感光体を−様に帯電させる構造となっていた
。Conventionally, the main charger of an electrophotographic recording device has an opening facing the charged part, and a charge line is stretched in the longitudinal direction of the opening, and the electric charge of the charge line is applied to the photoreceptor to charge the photoreceptor. It had a structure in which it was charged in a negative manner.
上述した従来のメインチャージャは、装置内のトナーの
飛散のため、トナーがチャージャ線の表面及びチャージ
ャケースの内部に付着し、このトナーの付着に起因して
感光体に−様な電荷を与えることができなくなり、また
、露光による潜像以外の箇所に電位の低い部分が発生す
るため、そこがトナーにより現像されて記録媒体に黒い
“すじ′として表われ、印字不良を起こすことがあった
。更に、この印字不良を防止するために定期的に手作業
による清掃を行う必要があり、メンテナンスの点でも問
題があった。In the conventional main charger described above, due to toner scattering within the device, toner adheres to the surface of the charger line and the inside of the charger case, and this toner adhesion causes a negative charge to be applied to the photoreceptor. In addition, because low potential areas are generated in areas other than the latent image due to exposure, these areas are developed with toner and appear as black "streaks" on the recording medium, causing printing defects. Furthermore, in order to prevent these printing defects, it is necessary to periodically perform manual cleaning, which poses a problem in terms of maintenance.
本発明のメインチャージャは、被帯電部に対向した開口
部をもつチャージャケースと、前記チャージャケースの
長手方向両端部に設けられた端子部材と、前記チャージ
ャケース内の前記端子部相聞に張設されたチャージャ線
とを有する電子写真式記録装置のメインチャージャにお
いて、前記チャージャ線の長手方向に往復動し、且つ、
前記チャージャ線の表面及び前記チャージャケース内の
清掃を行うクリーナと、前記電子写真式記録装置の電源
投入時を検出して前記クリーナを往復動させる駆動機構
から構成されている。The main charger of the present invention includes a charger case having an opening facing a charged part, a terminal member provided at both longitudinal ends of the charger case, and a terminal member stretched between the terminal parts in the charger case. In a main charger of an electrophotographic recording device having a charge line, the main charger reciprocates in the longitudinal direction of the charge line, and
The apparatus includes a cleaner that cleans the surface of the charge line and the inside of the charger case, and a drive mechanism that detects when the electrophotographic recording apparatus is powered on and reciprocates the cleaner.
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斜視図である。第１図
において、チャージャケース５は被帯電部に対向して開
口部を有しており、このケース５の長手方向両端に設け
られた端子箱７ａ、７ｂ間にチャージャ線６が張設され
ている。また、１は電子写真式記録装置の電源投入時に
起動するモータであり、このモータ１を一方の端子箱７
ａ内に内臓し、端子箱７ａの一電位側に突出させたモー
タ軸にプーリ８ａを取付け、プーリ８ａと他方の端子箱
７ｂの一電位側に支持させなプーリ８ｂ間にベルト２を
無端状に装着する。そして、チャージャケース５の断面
形状に合致するクリーナ３にチャージャ線６を挿通させ
、このクリーナ３をチャージャケース５内にチャージャ
線６の長さ方向に往復動可能に設置する。一方、チャー
ジャケース５の一電位側に長手方向に長孔９を開口し、
この長孔９に挿通した軸１ｏの一端を前記クリーナ３に
一体に取付け、軸１ｏの後端にタイミングベルト２の下
側工程に噛み合せて一体的に結合した歯型４を取付ける
。FIG. 1 is a perspective view showing an embodiment of the present invention. In FIG. 1, a charger case 5 has an opening facing the charged portion, and a charger wire 6 is stretched between terminal boxes 7a and 7b provided at both ends of the case 5 in the longitudinal direction. There is. Further, reference numeral 1 is a motor that starts when the power of the electrophotographic recording device is turned on, and this motor 1 is connected to one terminal box 7.
A pulley 8a is attached to the motor shaft built in the terminal box 7a and protruded to the one potential side of the terminal box 7a, and the belt 2 is placed in an endless state between the pulley 8a and the pulley 8b that is not supported on the one potential side of the other terminal box 7b. Attach to. Then, the charge wire 6 is inserted through the cleaner 3 that matches the cross-sectional shape of the charger case 5, and the cleaner 3 is installed in the charger case 5 so as to be able to reciprocate in the length direction of the charge wire 6. On the other hand, a long hole 9 is opened in the longitudinal direction on the one potential side of the charger case 5,
One end of the shaft 1o inserted through the elongated hole 9 is integrally attached to the cleaner 3, and a toothed mold 4 that is integrally connected to the lower process of the timing belt 2 is attached to the rear end of the shaft 1o.
更に、各端子箱７ａ、７ｂのクリーナ３と対向する位置
には、クリーナ３がそれぞれ端子箱７ａ、７ｂまて移動
したことを検出するセンサ１゜ａ、１０ｂを設け、また
、電子写真式記録装置の電源投入時を検出し、各センサ
１０ａ、１０ｂの圧力に基づいてモータ１の駆動制御を
行うコントローラ１１を装備する。コントローラ１１は
電子写真式記録装置の電源投入時を検出すると、モータ
１をクリーナ３が端子箱７ｂ側に送られる方向に正回転
させ、また、センサ１０ｂがクリーナ３を検出した時点
でモータ１を逆回転させ、センサ１０ａがクリーナ３を
検出した時点でモータ１を駆動停止させる。ここに、モ
ータ１．ベルト２゜歯型４．軸１０．コントローラ１１
及びセンサ１０ａ、１０ｂ等により電子写真式記録装置
の電源投入時にクリーナ３を駆動さる駆動機構が構成さ
れる。Further, sensors 1a and 10b are provided at positions facing the cleaner 3 of each terminal box 7a and 7b to detect when the cleaner 3 has moved past the terminal boxes 7a and 7b, respectively. A controller 11 is provided that detects when the device is powered on and controls the drive of the motor 1 based on the pressure of each sensor 10a, 10b. When the controller 11 detects that the electrophotographic recording device is powered on, it rotates the motor 1 in the forward direction in which the cleaner 3 is sent to the terminal box 7b, and when the sensor 10b detects the cleaner 3, it rotates the motor 1 forward. The motor 1 is rotated in the reverse direction, and when the sensor 10a detects the cleaner 3, the motor 1 is stopped. Here, motor 1. Belt 2° tooth shape 4. Axis 10. Controller 11
The sensors 10a, 10b, etc. constitute a drive mechanism that drives the cleaner 3 when the electrophotographic recording apparatus is powered on.
本実施例において、モータ１を電子写真式記録装置の本
体電気回路に電気的に接続し、電源投入した場合、コン
トローラ１１により、まずモータ１を正回転させてベル
ト２に時計方向への回転送りを与える。そして、ベルト
２の移動に伴ってこれと一体に結合された歯型４がベル
ト２と一体に移動し、また、クリーナ３はチャージャケ
ース５の一方の端子箱７ａがら他方の端子箱７ｂ側に向
けて移動し、これによって、クリーナ３はチャージャケ
ース５の内部及びチャージャ線６の清掃を行う。クリー
ナ３が他方の端子箱７ｂ側に到達したときには、これを
センサ１０ｂにて検出し、コントローラ１１によりモー
タ１を逆回転させてベルト２に反時計方向への回転送り
を与え、上記動作と同じ動作を行なわせる。In this embodiment, when the motor 1 is electrically connected to the main body electric circuit of the electrophotographic recording device and the power is turned on, the controller 11 first rotates the motor 1 in the forward direction to feed the belt 2 rotation in the clockwise direction. give. As the belt 2 moves, the teeth 4 integrally connected thereto move together with the belt 2, and the cleaner 3 moves from one terminal box 7a of the charger case 5 to the other terminal box 7b. As a result, the cleaner 3 cleans the inside of the charger case 5 and the charge line 6. When the cleaner 3 reaches the other terminal box 7b side, this is detected by the sensor 10b, and the controller 11 reversely rotates the motor 1 to give rotational feed to the belt 2 in the counterclockwise direction, which is the same operation as above. Have them do the action.
以上説明したように本発明は、本体電源投入時に自動的
にメインチャージャを清掃することにより、手作業によ
る手間が省け、まな、一定の清掃周期を持つことによっ
て、印字不良を防止できるという効果がある。As explained above, the present invention has the advantage that by automatically cleaning the main charger when the power is turned on, manual labor can be saved, and printing defects can be prevented by having a fixed cleaning cycle. be.
第１図は本発明の一実施例を示す斜視図である。
■・・・モータ、２・・・ベルト、３・・・クリーナ、
４・・・歯型、５・・・チャージャケース、６・・・チ
ャージャ線、７ａ、７ｂ−・一端子箱、８ａ、８ｂ−・
・プーリ、９・・・長孔、１０・・・軸、１０ａ、４０
ｂ・・・センサ、１・・・コントローラ。FIG. 1 is a perspective view showing an embodiment of the present invention. ■...Motor, 2...Belt, 3...Cleaner,
4... Tooth shape, 5... Charger case, 6... Charger wire, 7a, 7b-・One terminal box, 8a, 8b-・
・Pulley, 9... Long hole, 10... Shaft, 10a, 40
b...Sensor, 1...Controller.
Claims (1)
前記チャージャケースの長手方向両端部に設けられた端
子部材と、前記チャージャケース内の前記端子部材間に
張設されたチャージャ線とを有する電子写真式記録装置
のメインチャージャにおいて、前記チャージャ線の長手
方向に往復動し、且つ、前記チャージャ線の表面及び前
記チャージャケース内の清掃を行うクリーナと、前記電
子写真式記録装置の電源投入時を検出して前記クリーナ
を往復動させる駆動機構とを備えたことを特徴とするメ
インチャージャ。a charger case having an opening facing the charged part;
In the main charger of an electrophotographic recording device, the main charger for an electrophotographic recording device includes terminal members provided at both ends in the longitudinal direction of the charger case, and a charge line stretched between the terminal members in the charger case. a cleaner that reciprocates in the direction and cleans the surface of the charge line and the inside of the charger case; and a drive mechanism that detects when the electrophotographic recording device is powered on and reciprocates the cleaner. The main charger is characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19561890A JPH0481782A (en) | 1990-07-24 | 1990-07-24 | Main charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19561890A JPH0481782A (en) | 1990-07-24 | 1990-07-24 | Main charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0481782A true JPH0481782A (en) | 1992-03-16 |
Family
ID=16344166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19561890A Pending JPH0481782A (en) | 1990-07-24 | 1990-07-24 | Main charger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0481782A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012137678A (en) * | 2010-12-27 | 2012-07-19 | Fuji Xerox Co Ltd | Discharge device and image forming apparatus |
-
1990
- 1990-07-24 JP JP19561890A patent/JPH0481782A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012137678A (en) * | 2010-12-27 | 2012-07-19 | Fuji Xerox Co Ltd | Discharge device and image forming apparatus |
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