JPS5810766A - Transfer device - Google Patents
Transfer deviceInfo
- Publication number
- JPS5810766A JPS5810766A JP10871981A JP10871981A JPS5810766A JP S5810766 A JPS5810766 A JP S5810766A JP 10871981 A JP10871981 A JP 10871981A JP 10871981 A JP10871981 A JP 10871981A JP S5810766 A JPS5810766 A JP S5810766A
- Authority
- JP
- Japan
- Prior art keywords
- transfer
- guide member
- transfer material
- toner
- developed image
- 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
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/14—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
- G03G15/16—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer
- G03G15/163—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using the force produced by an electrostatic transfer field formed between the second base and the electrographic recording member, e.g. transfer through an air gap
- G03G15/1635—Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer using the force produced by an electrostatic transfer field formed between the second base and the electrographic recording member, e.g. transfer through an air gap the field being produced by laying down an electrostatic charge behind the base or the recording member, e.g. by a corona device
- G03G15/165—Arrangements for supporting or transporting the second base in the transfer area, e.g. guides
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、転写装置に係り、転写材汚れの生じない良好
な転写を可能とする転写装置Ｋ関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a transfer device, and more particularly to a transfer device K that enables good transfer without staining the transfer material.
従来、電子写真感光体等のｇ１ａ持体上に形成した現像
々へ、転写材を転写案内部材にて案内して転写電圧を印
加して転写する転写装置が汎用されている。2. Description of the Related Art Conventionally, a transfer device has been widely used that transfers a transfer material to developed images formed on a g1a carrier such as an electrophotographic photoreceptor by guiding the transfer material using a transfer guide member and applying a transfer voltage.
ところが、この様な転写電圧を印加する方式の転写装置
にては、高温時に転写電流が、転写材案内部材を通じて
漏れ出し、ｊＬ好な転写を成さない所請転写抜轄現象が
生じた〇
この対策として以下の５１１の技術がある。However, in such a transfer device that applies a transfer voltage, the transfer current leaks through the transfer material guide member at high temperatures, resulting in a phenomenon of undesired transfer in which good transfer is not achieved. As a countermeasure against this problem, there are 511 techniques listed below.
その＃１１は、転写材案内部材を電気的に浮かせるもの
である。#11 is for electrically floating the transfer material guide member.
この方式を用いると高温時に被転写部材が吸湿しても転
写抜けは生じないが、転写電ｉＳｌが転写案内部材に流
れ込んで転写案内部材が帯電し、これが浮遊トナーや潜
像担持体上のトナーを引きつけて蓄積させる。そしてこ
のトナーが転写材と接触してｌｉｉ像に汚れを生ずると
いう欠点があった。ま大抵温時には転写材と転写材案内
部材との摩擦でやはり帯電し汚れの原因となっている。When this method is used, even if the transferred member absorbs moisture at high temperatures, transfer omission will not occur, but the transfer electric current iSl flows into the transfer guide member and charges the transfer guide member, which causes floating toner and toner on the latent image carrier. Attract and accumulate. This toner comes into contact with the transfer material and causes stains on the image. In addition, when the temperature is high, friction between the transfer material and the transfer material guide member causes charging, which causes stains.
第２は、転写材案内部材に転写電流の漏れを防止するバ
イアス電圧を印加するものである０この方式でも、前記
方式と同様転写抜けを防止出来るが ４１別に転源を要
する。この為装置が複雑化する。しかも、電圧を印加す
る為、操作者の保守性の安全対策を要することになり、
この為にも更に装置が複雑化する。The second method is to apply a bias voltage to the transfer material guide member to prevent transfer current from leaking.This method can also prevent transfer omissions in the same way as the previous method, but requires a separate source. This makes the device complicated. Moreover, since voltage is applied, safety measures for operator maintenance are required.
This also makes the device even more complicated.
ｌＩ５は、転写材案内部材を抵抗を介して接地するもの
である。lI5 is for grounding the transfer material guide member via a resistor.
ｍが蓄積し易くトナー汚れが生じ易い。m easily accumulates and toner stains are likely to occur.
又、転写材案内部材表面が金属である場合、高温時に転
写材の搬送性が悪くなる場合がある。Furthermore, if the surface of the transfer material guide member is made of metal, the conveyance of the transfer material may deteriorate at high temperatures.
本発明は、上述の点に＃！み成されたもので、良好な転
写をｉｔｒ能とする転写装置を提供するものである。The present invention addresses the above points! The present invention provides a transfer device capable of achieving good transfer performance.
本発明装置は、僚担持体上に形成した現像々へ、転写材
案内部材にて転写材を案内し転写を成す転写装置におい
て、転写材案内部材は、転写抜けを生ずる転写電流の漏
れを防止するのに十分で、かつ浮遊現像剤を吸着する電
位を生ずる電荷蓄積を起さない体積抵抗の物質を有する
ことをｌ！＃黴とするＯ
本発明上記構成において、前記体積抵抗の物質を転写材
案内部材の転写材接触面に配置することは好適な構成で
ある。The device of the present invention is a transfer device in which a transfer material guide member guides a transfer material to the developed images formed on a co-carrier to perform transfer, and the transfer material guide member prevents leakage of transfer current that causes transfer omission. l! have a material with a volume resistivity sufficient to absorb the floating developer and not cause charge build-up that would create a potential to adsorb floating developer. #Mold O In the above configuration of the present invention, it is a preferable configuration that the substance having the volume resistivity is disposed on the transfer material contacting surface of the transfer material guide member.
又、本発明前記構成において、前記物質の体積抵抗が１
０’に？、１以上であることは好適な構成であるＯ
更に又、本発明ｗｊＪ記構成において、前記物質の体積
抵抗が、１０１ｇ・１以下であることは好適表構成であ
る。Further, in the above structure of the present invention, the volume resistance of the substance is 1
To 0'? , 1 or more is a preferable configuration. Furthermore, in the wjJ configuration of the present invention, it is a preferable table configuration that the volume resistivity of the substance is 101 g·1 or less.
以下、本発明の詳細を具体例により図面を参照しつつ説
明する。Hereinafter, details of the present invention will be explained using specific examples with reference to the drawings.
第１図は、本発明に基づ（具体例転写装置の側面図であ
る。FIG. 1 is a side view of a specific example transfer device according to the present invention.
１は、感光体ドラムで矢印方向に不図示の駆動手段にて
１転される。1 is a photosensitive drum that is rotated once in the direction of the arrow by a driving means (not shown).
２は、感党体ドツム上に、不図示の＃儂形成手段及びｍ
ｔａ手段にで形成され良ｇＬ像々である０５は、転写コ
シす放電器、４が金属製の転写材下案内部材、５が同様
に金属製の転写材上案内部材である。2, #me forming means (not shown) and m are placed on the receptor dots.
05, which are good gL images formed by the ta means, is a discharge device for transferring stiffness, 4 is a transfer material lower guide member made of metal, and 5 is a transfer material upper guide member also made of metal.
そして、６は、転写材下案内部材表面に設けた抵抗物質
層で、図示例では高分子ポリエチレンに身−ｌンを分散
させ体積抵抗を１０８ｇ・儲とし良ものである・
この様な構成装置によって転写材７へは高湿時（例えば
８０１１ＲＨ）の環境ても良好な転写を可能とする。Reference numeral 6 denotes a resistive material layer provided on the surface of the lower guide member for the transfer material, and in the illustrated example, the material is dispersed in high-molecular polyethylene and has a volume resistance of 108 g. This enables good transfer to the transfer material 7 even in a high humidity environment (for example, 8011RH).
因に、抵抗物質層６としてカーーンを分散させていない
高分子ボッエチレン（体積抵抗１０”４２１ｃｍ以上）
を用いえ場合、低１１１１境（例えば２５９１Ｒ１（）
にて転写材下案内部材４と転写紙７との摩擦により転写
材下案内部材４が帯電する。実験によると感覚体ドラム
１と転写材下案内部材４の距離が１．２−の場合は転写
材下案内部材の電位が一１０００Ｖ以上にも達する。と
ころが−５００ｖ以上になると案内部材の先端にトナー
が付着し次の転写紙の画像先端の裏側が汚れることがわ
かった０汚れ方は電位が０に近い楊汚れ難いことも確Ｍ
１れた。Incidentally, the resistive material layer 6 is made of polymeric Botethylene (volume resistivity 10"421cm or more) in which Karn is not dispersed.
If you cannot use the low 1111 boundary (e.g. 2591R1()
At this point, the transfer material lower guide member 4 is charged due to friction between the transfer material lower guide member 4 and the transfer paper 7. According to experiments, when the distance between the sensory drum 1 and the transfer material lower guide member 4 is 1.2 -, the potential of the transfer material lower guide member reaches 11000 V or more. However, when the voltage exceeds -500V, toner adheres to the tip of the guide member and the back side of the image edge of the next transfer paper becomes dirty.
I got 1.
この場合トナーはｉイナス極性のものを用いたが転写コ
一すを浴びてプラスＫＩＦ電したものがメイドに付ｉし
たものと考えられる。In this case, toner of negative polarity was used, but it is thought that the toner that received a positive KIF charge after being exposed to the transfer plate was attached to the maid.
また高温時には転写コーナ放電器３からのコｗｘｆ電流
が低抵抗化した転写紙７を介して転写材下案内部材４Ｋ
ａれ込みガイドを＋１０００ Ｖ以上にチャージアップ
してしまつ九ｏグツスにガイドが帯電する場合は＋７０
０ｖ以上でガイドが汚れて１ｍ會の裏が汚れることがわ
かり良。一方、前述した本発明具体例装置の如くカーｌ
ン分散した高分子ポリエチレンの様な所定抵抗物質層を
案内部材４表面に設は九ところ、低湿時で−５００Ｖ
、高温でも＋５００ｖ以内にガイドの電位を抑えること
ができガイドの汚れは全く生じなかった。In addition, at high temperatures, the current from the transfer corner discharger 3 is transferred to the transfer material lower guide member 4K via the transfer paper 7 with low resistance.
If the guide is charged up to +1000 V or more and the guide becomes charged, the voltage is +70.
It is clear that at 0v or higher, the guide gets dirty and the back of the 1m ring becomes dirty. On the other hand, as in the device according to the embodiment of the present invention described above,
A layer of a predetermined resistive material such as polymeric polyethylene dispersed in 90% is provided on the surface of the guide member 4, and the voltage is -500 V at low humidity.
Even at high temperatures, the potential of the guide could be suppressed to within +500V, and no staining of the guide occurred.
上記転写材案内部材が汚れないようにする為には１例え
電荷が蓄積しても電位を−５００ｖ〜＋７０ＯＶに抑え
る様に前記抵抗物質層を構成すれば良（、実用上は、体
積抵抗が１０１１・１以下であれば良い。In order to prevent the transfer material guide member from becoming dirty, the resistive material layer should be configured so that even if charge is accumulated, the potential is suppressed to -500V to +70OV (in practice, the volume resistance is It is sufficient if it is 1011·1 or less.
そして好適には１０Ω・０以下である。一方転写抜けを
防止する為に実用上１０″Ω・ｌより小さくすることは
不都合を生ずる。そして好適には１０６Ω・１以上であ
る〇
第２図は１本発明に基づく他の具体例装置を説明する側
面図である。第１図と共通部材は同一番号にで示す。第
２図ａｍにては、転写材上案内部材５の転写材接触面側
にも、所定抵抗物質層６を設け、転写電流の層れの確実
化を促進し次ものである。そして１例え長期間の使用で
も転写材上案内部材５表面への現像剤トナー付着を防止
出来る。And preferably it is 10Ω·0 or less. On the other hand, in order to prevent transfer failure, it is inconvenient to make it smaller than 10''Ω·l in practice.And preferably it is 106Ω·1 or more. FIG. 2 is a side view for explaining. Members common to those in FIG. 1 are indicated by the same numbers. In FIG. This promotes ensuring the layering of the transfer current and prevents the developer toner from adhering to the surface of the transfer material upper guide member 5 even after long-term use.
従って、転写材表備への現像剤こばれを防止することが
出来る。Therefore, it is possible to prevent the developer from spilling onto the transfer material surface.
尚、上記抵抗物質として転写材との摩擦性勢を考−して
過歯な材質を選択しうる。Incidentally, as the above-mentioned resistive material, a material having a large number of teeth may be selected in consideration of the frictional force with the transfer material.
又、二本来絶縁性物質であっても前述の如（、導電性物
質或は界面活性剤を混入して適度の体積抵抗としても良
い。Furthermore, even if the material is essentially an insulating material, it may be mixed with a conductive material or a surfactant to give it an appropriate volume resistance as described above.
又、Ｎ示例にては、金属性案内部材表向を抵抗物質層に
て被覆する構成としたが、適度な強度を有する抵抗−質
にて案内部材を成形しても良いことは勿論である。In addition, in the example N, the surface of the metallic guide member is coated with a resistive material layer, but it goes without saying that the guide member may be formed of a resistive material having appropriate strength. .
第１図は、本発明に基く具体例転写装置側面図、第２図
は、本発明に基く変形例懺ｔ＠面図。
図中、１：惑元体ドラム（宙担持体）、２：現像々、３
：転写コロナ放電器、４．５：転写材案内部材、６：抵
抗物質層。
出願人 キャノン株式会社
一FIG. 1 is a side view of a specific example transfer device based on the present invention, and FIG. 2 is a side view of a modified example based on the present invention. In the figure, 1: Elemental drum (midair carrier), 2: Developers, 3
: transfer corona discharger, 4.5: transfer material guide member, 6: resistive material layer. Applicant Canon Co., Ltd.
Claims (1)
にて転写材を案内し転写を成す転写装置において、転写
材案内部材は、転写抜けを生ずる転写電流の漏れに防止
するのに十分で、かつ、浮遊ａｍ剤を数層する電位を生
ずる電荷蓄積を起重ない体積１１に抗の物質を有するこ
とを４１黴とする転′ｌ１ｉｉ置 ■畳許−求の範囲第１項の発ＱＱにおいて、前記体積抵
抗の物質を、転写材案内部材の転写材接において、Ｍｌ
記物質の体積抵抗が１０“１口以上であることを４１１
１とする転写装置 （４）特許請求の範囲第１項、第２項若しくはＪＩＩ３
項記載の発明において、前記物質の体積抵抗が１０”＃
Ｑ以下であることを特徴とする転写装置[Scope of Claims] 0) Transfer material guide ll# to be formed on the image carrier and to be developed.
In a transfer device that guides a transfer material and performs transfer, the transfer material guide member has a charge accumulation that is sufficient to prevent transfer current leakage that would cause transfer omission, and that generates a potential that creates several layers of floating am agent. The presence of a substance with a resistive force in the volume 11 that does not cause the above-mentioned volume resistivity is defined as a 41 mold. In material welding, Ml
411 that the volume resistivity of the substance is 10" or more.
1. Transfer device (4) Claims 1, 2 or JII3
In the invention described in paragraph 1, the volume resistivity of the substance is 10"#
Transfer device characterized by Q or less
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10871981A JPS5810766A (en) | 1981-07-10 | 1981-07-10 | Transfer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10871981A JPS5810766A (en) | 1981-07-10 | 1981-07-10 | Transfer device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5937782A Division JPS5810767A (en) | 1982-04-08 | 1982-04-08 | Transfer device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5810766A true JPS5810766A (en) | 1983-01-21 |
| JPH0343625B2 JPH0343625B2 (en) | 1991-07-03 |
Family
ID=14491828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10871981A Granted JPS5810766A (en) | 1981-07-10 | 1981-07-10 | Transfer device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5810766A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61127610U (en) * | 1985-01-29 | 1986-08-11 | ||
| US4933723A (en) * | 1987-06-05 | 1990-06-12 | Hitachi, Ltd. | Resin coated transfer guide for electrophotographic apparatus |
| US5228797A (en) * | 1989-02-10 | 1993-07-20 | Kabushiki Kaisha Komatsu Seisakusho | Connecting pin device for working machine operating links |
| JP2019219520A (en) * | 2018-06-20 | 2019-12-26 | 富士ゼロックス株式会社 | Sheet guiding device and image forming apparatus |
-
1981
- 1981-07-10 JP JP10871981A patent/JPS5810766A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61127610U (en) * | 1985-01-29 | 1986-08-11 | ||
| US4933723A (en) * | 1987-06-05 | 1990-06-12 | Hitachi, Ltd. | Resin coated transfer guide for electrophotographic apparatus |
| US5228797A (en) * | 1989-02-10 | 1993-07-20 | Kabushiki Kaisha Komatsu Seisakusho | Connecting pin device for working machine operating links |
| JP2019219520A (en) * | 2018-06-20 | 2019-12-26 | 富士ゼロックス株式会社 | Sheet guiding device and image forming apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0343625B2 (en) | 1991-07-03 |
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