JPS62264068A - Electrophotographic printing device - Google Patents
Electrophotographic printing deviceInfo
- Publication number
- JPS62264068A JPS62264068A JP61108327A JP10832786A JPS62264068A JP S62264068 A JPS62264068 A JP S62264068A JP 61108327 A JP61108327 A JP 61108327A JP 10832786 A JP10832786 A JP 10832786A JP S62264068 A JPS62264068 A JP S62264068A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- guide
- printing device
- electrophotographic printing
- small glass
- 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
- 239000011521 glass Substances 0.000 claims abstract description 8
- 239000011324 bead Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 9
- 239000011230 binding agent Substances 0.000 abstract 1
- 230000003068 static effect Effects 0.000 description 7
- 230000008030 elimination Effects 0.000 description 5
- 238000003379 elimination reaction Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 108091008695 photoreceptors Proteins 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Elimination Of Static Electricity (AREA)
- Handling Of Continuous Sheets Of Paper (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
- Paper Feeding For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は電子写真式印字装置、特に負極性に帯電する乾
式一成分絶縁性トナーを用いる場合の用紙の除電機構に
関する。゛
〔従来の技術〕
電子写真式印字装置において、負極性に帯電する乾式一
成分絶縁性トナーを用いて用紙に印刷を行う場合に、用
紙を除電する必要がある。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electrophotographic printing device, and particularly to a paper static elimination mechanism when using a dry monocomponent insulating toner that is negatively charged. [Prior Art] In an electrophotographic printing device, when printing on paper using a dry one-component insulating toner that is negatively charged, it is necessary to eliminate electricity from the paper.
従来はステンレスや銅・ニッケル・炭素などの導電性材
料を貼着してなるブラシを使って、ブラシと用紙との間
にコロナ放電を生じさせて用紙の除電を行っていた。Conventionally, a brush made of conductive material such as stainless steel, copper, nickel, or carbon was used to generate a corona discharge between the brush and the paper to eliminate electricity from the paper.
上述した従来の除電方法は除電を行うブラシの近傍に別
の金属体が存在すると、その金属体と用紙との間に電気
的引力が集中し、ブラシと用紙との間での放電が十分に
行われず、除電しきれないという欠点があった。これを
解決するには用紙と金属体との間を電気的に遮蔽すれば
よいが、そのことにより構造が複雑化してしまうという
新たな問題が生じる。In the conventional static elimination method described above, if there is another metal object near the brush that performs static elimination, electrical attraction will be concentrated between the metal object and the paper, and the discharge between the brush and the paper will not be sufficient. However, there was a drawback that the static electricity could not be completely removed. This can be solved by electrically shielding the space between the paper and the metal body, but this creates a new problem of complicating the structure.
本発明の目的は用紙との摩擦による摩擦電気を利用して
用紙の除電を行う電子写真式印字装置を提供することに
ある。SUMMARY OF THE INVENTION An object of the present invention is to provide an electrophotographic printing device that eliminates static electricity from paper using frictional electricity caused by friction with the paper.
本発明は負極性に帯電する乾式一成分絶縁性トナーを用
いる電子写真式印字装置において、電子写真プロセスの
転写部と定着部との間の用紙走行路に、ガラス小球を用
紙案内面に散在させてなる用紙走行ガイドを装備したこ
とを特徴とする電子写真式印字装置である。The present invention is an electrophotographic printing device that uses a dry one-component insulating toner that is negatively charged. This is an electrophotographic printing device characterized by being equipped with a paper running guide.
以下１本発明の一実施例を図により説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図に示すように、感光体４の周囲にはメイン帯電器
５．Ｈｅ−Ｎｅレーザー光源６、現像器７゜正極性コロ
ナ帯電器（転写部）９と、正極性コロナ帯電器９を通過
した用紙の定着を行うフラッシュ定着部１２とが備えら
れており、コロナ帯電器９とフラッシュ定着部１２との
間の用紙走行路１３には用紙１０を定着部１２に向けて
案内する用紙走行ガイド１１が設置されている。As shown in FIG. 1, a main charger 5. It is equipped with a He-Ne laser light source 6, a developing device 7, a positive corona charger (transfer section) 9, and a flash fixing section 12 that fixes the paper that has passed through the positive corona charger 9. A paper running guide 11 that guides the paper 10 toward the fixing unit 12 is installed in a paper running path 13 between the unit 9 and the flash fixing unit 12 .
本発明は第２図に示すようにステンレス製プレート３の
表面にガラス小球１．１・・・をバインド材２で貼付し
て用紙走行ガイド１１を構成し、プレート３のガラス小
球１を用紙１０と接触する位置に向けて該用紙走行ガイ
ド１１を用紙走行路１３内に設置したものである。In the present invention, as shown in FIG. 2, a paper running guide 11 is constructed by pasting small glass balls 1.1... on the surface of a stainless steel plate 3 with a binding material 2. The paper running guide 11 is installed in a paper running path 13 toward a position where it contacts the paper 10.
実施例において、光導電性を有する感光体４はメイン帯
電器５によって負極性に均一に帯電させられる。帯電し
た感光体４の表面に画像信号により変調されたＨｅ−Ｎ
ｅレーザー光が光源６より照射される。照射された部分
の電荷は感光体４の有する光導電性により消失し、潜像
が形成される。潜像部に現像器７で負極に帯電させられ
たトナー８が付着し転写部へと送られる。転写部では送
られてきたトナー像をトナーが負極に帯電していること
を利用し、正極性のコロナ帯電器９により感光体に同期
して送られる用紙１０に転写させる。このとき、用紙は
正極性に強く帯電する。In the embodiment, a photoreceptor 4 having photoconductivity is uniformly charged to a negative polarity by a main charger 5. He-N modulated by an image signal is deposited on the surface of the charged photoreceptor 4.
e laser light is emitted from the light source 6. The charge on the irradiated area disappears due to the photoconductivity of the photoreceptor 4, and a latent image is formed. Toner 8 negatively charged by the developing device 7 adheres to the latent image portion and is sent to the transfer portion. In the transfer section, the transferred toner image is transferred onto a sheet of paper 10, which is fed in synchronization with the photoreceptor, by a positive corona charger 9, making use of the fact that the toner is negatively charged. At this time, the paper becomes strongly positively charged.
トナー像を転写された用紙は用紙走行ガイド１１を通り
クセノンランプを用いたフラッシュ定着部１２へ送られ
る。用紙走行ガイド１１を通過する際に、正極性に強く
帯電した用紙ｌＯはガイド１１のガラス小球１との間で
摩擦し、摩擦帯電により負極性の電荷を帯びることによ
り中和され、除電される。The paper onto which the toner image has been transferred passes through a paper running guide 11 and is sent to a flash fixing section 12 using a xenon lamp. When passing through the paper running guide 11, the strongly positively charged paper 10 rubs against the glass sphere 1 of the guide 11, becomes negatively charged due to frictional electrification, and is neutralized and neutralized. Ru.
フラッシュ定着部１２でトナーは溶融され、半永久像と
して用紙１０に固着し、用紙ｌＯは装置外へ排出させら
れる。The toner is melted in the flash fixing section 12 and fixed to the paper 10 as a semi-permanent image, and the paper 10 is discharged from the apparatus.
以上説明したように本発明は用紙走行ガイドのガラス小
球と用紙とを摩擦させその除土じる摩擦電気を利用して
電子写真式印字装置に用いられる用紙の除電を有効に行
うことができ、しかも摩擦電気を利用しているから、ガ
イド近傍に別の金属体が存在したとしてもこの金属体に
よって除電に何ら影響を与えられることがなく、確実に
除電を行うことができる効果を有するものである。As explained above, the present invention can effectively eliminate electricity from paper used in electrophotographic printing devices by using the frictional electricity generated by friction between the paper and the glass beads of the paper travel guide. Moreover, since it uses triboelectricity, even if another metal object is present near the guide, this metal object will not have any effect on static elimination, and has the effect of being able to perform static elimination reliably. It is.
第１図は電子写真式印字装置の一例を示す構成図、第２
図は本発明の一実施例を示す断面図である。Figure 1 is a configuration diagram showing an example of an electrophotographic printing device;
The figure is a sectional view showing one embodiment of the present invention.
Claims (1)
る電子写真式印字装置において、電子写真プロセスの転
写部と定着部との間の用紙走行路に、ガラス小球を用紙
案内面に散在させてなる用紙走行ガイドを装備したこと
を特徴とする電子写真式印字装置。(1) In an electrophotographic printing device that uses a dry one-component insulating toner that is negatively charged, glass beads are scattered on the paper guide surface in the paper travel path between the transfer section and the fixing section in the electrophotographic process. An electrophotographic printing device characterized by being equipped with a paper running guide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61108327A JPS62264068A (en) | 1986-05-12 | 1986-05-12 | Electrophotographic printing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61108327A JPS62264068A (en) | 1986-05-12 | 1986-05-12 | Electrophotographic printing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62264068A true JPS62264068A (en) | 1987-11-17 |
Family
ID=14481887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61108327A Pending JPS62264068A (en) | 1986-05-12 | 1986-05-12 | Electrophotographic printing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62264068A (en) |
-
1986
- 1986-05-12 JP JP61108327A patent/JPS62264068A/en active Pending
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