JPS62280874A - Image forming device - Google Patents
Image forming deviceInfo
- Publication number
- JPS62280874A JPS62280874A JP61125145A JP12514586A JPS62280874A JP S62280874 A JPS62280874 A JP S62280874A JP 61125145 A JP61125145 A JP 61125145A JP 12514586 A JP12514586 A JP 12514586A JP S62280874 A JPS62280874 A JP S62280874A
- Authority
- JP
- Japan
- Prior art keywords
- transfer
- transfer material
- electrifier
- charger
- outside
- 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
- 239000000463 material Substances 0.000 claims abstract description 70
- 238000000926 separation method Methods 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000003086 colorant Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 229920006267 polyester film Polymers 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000003472 neutralizing effect Effects 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
（発明の産業上の利用分野）
本発明は無端移動する転写材担持シート上に転写材を担
持し、この転写材に転写電界を付与して感光ドラムや絶
縁ドラム等の像担持体上に順次形成されるトナー像を順
次転写材上に重ねて転写するカラー複写機やカラープリ
ンター等に適用できる多重転写装置を有する画像形成装
置に関するものである。[Detailed Description of the Invention] 3. Detailed Description of the Invention (Industrial Application Field of the Invention) The present invention carries a transfer material on an endlessly moving transfer material carrying sheet, and applies a transfer electric field to this transfer material. This invention relates to an image forming apparatus having a multi-transfer device that can be applied to a color copying machine, a color printer, etc., in which toner images formed sequentially on an image carrier such as a photosensitive drum or an insulating drum are sequentially transferred onto a transfer material. be.
（従来技術）
第５図は従来のフルカラー複写画像を形成するための電
子写真カラー複写機の説明図である。図において感光ド
ラム１の周りには、コロナ帯電器２゜露光光学系３．現
像器４．転写ドラム５．クリーニング器６が置かれてい
る。光学系３は原稿走査部３ａと色分解フィルタ３ｂか
ら成る。そして現像器４は中心軸４ｂの周りに４個の色
別の現像器を有しており、図の４Ｙはイエロー現像器、
４Ｍはマゼンタ現像器、４Ｃはシアン現像器、４Ｂはブ
ラック現像器という配置になっている。また現像器全体
が回転し、各４色の現像を順次行うものである。更に転
写ドラム５はシリンダ５ａ、転写帯電器５ｂ、転写材グ
リッパ−５ｃ、内側帯電器５ｄ、外側帯電器５ｅとから
成り、ドラム５の一部を切欠いた開口域に転写材担持シ
ートが張られ、この上に転写材を支持する。(Prior Art) FIG. 5 is an explanatory diagram of a conventional electrophotographic color copying machine for forming full-color copied images. In the figure, a photosensitive drum 1 is surrounded by a corona charger 2, an exposure optical system 3. Developing device 4. Transfer drum5. A cleaning device 6 is placed. The optical system 3 includes a document scanning section 3a and a color separation filter 3b. The developing device 4 has four developing devices for different colors around the central axis 4b, and 4Y in the figure is a yellow developing device;
4M is a magenta developer, 4C is a cyan developer, and 4B is a black developer. Further, the entire developing device rotates to sequentially develop each of the four colors. The transfer drum 5 further includes a cylinder 5a, a transfer charger 5b, a transfer material gripper 5c, an inner charger 5d, and an outer charger 5e. , on which the transfer material is supported.
フルカラー画像の形成は、先ず感光ドラム１に青の色分
解静電潜像を形成し、イエロー現像器４Ｙにより現像す
る。一方、転写材は転写材カセット７より搬送系を介し
て転写ドラム５のグリッパ−５０で把持される。転写ド
ラム５の回転の進行に伴ない、感光ドラム１上のトナー
像が転写帯電器５ｂにより転写材上に転写され、同時に
転写材は転写材担持シートに吸着される。この動作を公
知のフルカラー画像方法と同様にあと３回、即ち、マゼ
ンタ、シアン、ブラックについて繰り返す。こうして４
色のトナー像の転写が終了すると転写ドラム５から分離
され、熱ローラ定着器９を介してトレイ１０に排出され
る。To form a full-color image, first, a blue color-separated electrostatic latent image is formed on the photosensitive drum 1, and developed by the yellow developer 4Y. On the other hand, the transfer material is gripped by the gripper 50 of the transfer drum 5 from the transfer material cassette 7 via the conveyance system. As the rotation of the transfer drum 5 progresses, the toner image on the photosensitive drum 1 is transferred onto the transfer material by the transfer charger 5b, and at the same time, the transfer material is attracted to the transfer material carrying sheet. This operation is repeated three more times, ie, for magenta, cyan, and black, similarly to the known full-color imaging method. Thus 4
When the transfer of the color toner image is completed, it is separated from the transfer drum 5 and discharged onto a tray 10 via a heat roller fixing device 9.
第２図は従来のカラー電子写真複写機のタイムチャート
の一部である。内側帯電器５ｄ及び外側帯電器５ｅは転
写材の種類に依らず、常に一定のシーケンスによって動
作している。FIG. 2 is a part of a time chart of a conventional color electrophotographic copying machine. The inner charger 5d and the outer charger 5e always operate according to a fixed sequence regardless of the type of transfer material.
先づ転写ドラム５に転写材が把持されるのに先立ち、い
わゆる前回転時に交流、直流或は交流に直流を重畳させ
て内側帯電器に交流を用いる際は外側帯電器には逆位相
の交流で転写材担持シートに残留した電荷を中和、又は
減少させるべく両帯電器とも同時に動作させ、第１色イ
エローの転写が始まる直前に停止させる。また、４色目
のブラックの転写が開始されると同時に転写材及び転写
材担持シートに蓄積し、転写材と転写材担持シートを吸
着させるべく働く電荷を中和させるように前記条件を以
って動作する。この結果、転写材と転写材担持シートの
間の吸着力が減少し、分離爪８の補助的作用により、転
写材と転写材担持シートとは完全に剥離される。また、
分離時における除電作用は、転写材と転写材担持シート
か剥離する際に発生する電荷を中和させる効果をも合せ
持っている。First, before the transfer material is gripped by the transfer drum 5, during the so-called pre-rotation, when alternating current, direct current, or direct current is superimposed on alternating current and alternating current is used for the inner charger, an alternating current of opposite phase is applied to the outer charger. Both chargers are operated simultaneously in order to neutralize or reduce the charge remaining on the transfer material carrying sheet, and are stopped immediately before the transfer of the first color yellow begins. Furthermore, the above conditions are applied so as to neutralize the electric charge that accumulates on the transfer material and the transfer material carrying sheet and works to attract the transfer material and the transfer material carrying sheet at the same time as the transfer of the fourth color, black, starts. Operate. As a result, the adsorption force between the transfer material and the transfer material carrying sheet is reduced, and the transfer material and the transfer material carrying sheet are completely separated by the auxiliary action of the separation claw 8. Also,
The static neutralizing action at the time of separation also has the effect of neutralizing the electric charges generated when the transfer material and the transfer material carrying sheet are separated.
又、画像露光及び転写帯電のオン・オフのタイミングか
られかる様に、Ａ３ （ＪＩＳ規格）サイズのフルカラ
ーコピ一時は、少なく共転写ドラム１回転分は画像露光
間隔がおいているが、これは原稿走査光学系３の走査後
におけるスタート位置への戻り時間、あるいは現像器の
入換えに伴う移動時間を確保するためである。Also, as can be seen from the on/off timing of image exposure and transfer charging, in A3 (JIS standard) size full-color copies, the image exposure interval is at least one rotation of the co-transfer drum; This is to ensure time for the document scanning optical system 3 to return to the starting position after scanning, or time for movement due to replacement of the developing device.
一般に転写材として用いられるものには大別して普通紙
と投影用フィルム（以後ＯＨＰ用フィルムと記す）の２
種類があり、紙には上質紙、アート紙やコート紙等が用
いられ、ＯＨＰフィルムとしてはポリエステルフィルム
等の電気高抵抗フィルムを用いる。従来、前記したとう
り上記２種類の転写材に対し、同一のシーケンスにより
、内側帯電器５ｄ及び外側帯電器５ｅを動作させていた
ために、紙の様な低抵抗物質には影響はないもののＯＨ
Ｐフィルムのような高抵抗物質では、４色の転写が進行
する過程で、転写材及び転写材担持シートに転写を阻害
するように働く電荷が蓄積していく、いわゆるチャージ
アップ現象がおこり、転写回数の後の色になるほど転写
率が悪化するという欠点があった。There are two types of transfer materials that are generally used: plain paper and projection film (hereinafter referred to as OHP film).
There are different types of paper, such as high-quality paper, art paper, coated paper, etc., and as the OHP film, a high electrical resistance film such as polyester film is used. Conventionally, as described above, the inner charger 5d and the outer charger 5e were operated in the same sequence for the two types of transfer materials, so although it does not affect low resistance materials such as paper, the OH
With high-resistance materials such as P film, during the process of transferring four colors, a so-called charge-up phenomenon occurs in which charges that act to inhibit transfer occur on the transfer material and the transfer material supporting sheet. There was a drawback that the transfer rate worsened as the number of colors increased.
このチャージアップ現象を実験的に調べたものが、第３
図及び第４図に示しである。先ず第３図の場合は転写材
担持シートとしてポリエステルフィルム、厚さｔｏＯ４
ｚｍ、体積抵抗Ｉ Ｑ１６Ω”ｃｍを用い、また転写材
として普通紙厚さ１５０μｍ１体積抵抗１０”Ω・ｃｍ
のものを用い、第１図の転写ドラムのセンサー〇及び■
の位置に表面電位計のセンサーを設定し、実際に複写を
行ったときの表面電位の変化を追ったものである。The third experimental study of this charge-up phenomenon
It is shown in FIG. First, in the case of Fig. 3, a polyester film, thickness to O4, is used as the transfer material carrying sheet.
zm, volume resistance IQ 16 Ω cm, and plain paper thickness 150 μm 1 volume resistance 10 Ω cm as the transfer material.
Check the transfer drum sensors ○ and ■ in Figure 1.
A surface electrometer sensor was set at the position of , and changes in surface potential were tracked during actual copying.
上記位置のセンサー■から［Ｆ］までの移動時間は約０
．２秒、またセンサー■から■までは約２．３秒であり
、一回転には約２．５秒かかる。測定はスタート時（時
間０秒）にセンサａの上にあるシートの一部分を対照と
して行い、その結果をプロットした結果を第３図に示し
た。第１回の転写（第１色目）から東回の転写（第４色
）へと転写が進行するに従い、表面電位は上昇するもの
の、上記位置のセンサー■から■に移動する際、転写材
の自己放電により電位が減衰することがわかる。この結
果得られた画像の転写は良好に行われていた。第４図は
、同条件のもと転写材にＯＨＰ用紙（ポリエステルフィ
ルム）厚さ１５０μｍ９体積抵抗１０１６Ω・ｃｍを用
いて測定した結果を示したものであるが、位置のセンサ
ー■から■（こ移る際の表面電位の減衰はまったくみら
れず、最終的な表面電位も５ 、２ ＫＶと転写材に紙
を用いたときの約２倍はどになることがわかる。又、得
られた画像も後の転写になるほど転写効率が不良であり
、典型的なチャージアップ現象によるカラーバランスの
乱れを示していた。Travel time from sensor ■ at the above position to [F] is approximately 0
．． 2 seconds, and it takes about 2.3 seconds from sensor ■ to ■, and it takes about 2.5 seconds for one rotation. The measurement was performed using a portion of the sheet above sensor a as a control at the start (time 0 seconds), and the results are plotted and shown in FIG. As the transfer progresses from the first transfer (first color) to the east transfer (fourth color), the surface potential increases; It can be seen that the potential attenuates due to self-discharge. The resulting image was successfully transferred. Figure 4 shows the results of measurement using OHP paper (polyester film) thickness 150 μm 9 volume resistance 1016 Ω cm as the transfer material under the same conditions. It can be seen that there is no attenuation of the surface potential at all, and the final surface potential is 5.2 KV, about twice as wide as when paper is used as the transfer material.Also, the resulting image is also 5.2 KV. The later the transfer, the poorer the transfer efficiency, and the color balance was disturbed due to a typical charge-up phenomenon.
尚、この測定において転写電圧は約＋７．ＯＫＶで、転
写帯電器のワイヤーと転写材担持シートの距離は１１ｍ
ｍである。また、転写ドラムの内側及び外側帯電器Ｓｄ
、 Ｓｅには約９ＫＶ （実効値）の交流電圧を互いに
逆位相で加えている。In this measurement, the transfer voltage was approximately +7. With OKV, the distance between the transfer charger wire and the transfer material carrying sheet is 11m.
It is m. In addition, the inner and outer chargers Sd of the transfer drum
, Se are applied with alternating current voltages of approximately 9 KV (effective value) in opposite phases.
（発明が解決しようとする問題点）
本発明は前述のような問題点を除去することであり、転
写材に投影用フィルムを用いたときの多重転写時におけ
るチャージアップ現象を防止し、良好な転写を行える転
写装置を提供することを目的としている。(Problems to be Solved by the Invention) The purpose of the present invention is to eliminate the above-mentioned problems, and to prevent the charge-up phenomenon during multiple transfer when using a projection film as a transfer material, and to achieve a good result. The object of the present invention is to provide a transfer device that can perform transfer.
（問題を解決するための手段）
本発明は転写位置と分離位置との間にある除電用帯電器
を無低モードでは分離時のみ作動させ、樹脂フィルム等
の高電気抵抗値を持つ転写モードでは転写動作前から転
写材の分離時まで継続して動作成せるものである。(Means for Solving the Problem) The present invention operates the charger for static elimination between the transfer position and the separation position only during separation in the non-low mode, and in the transfer mode with a high electrical resistance value such as a resin film. This allows for continuous operation from before the transfer operation to when the transfer material is separated.
（実施例）
本発明の一例を第６図に示す電子写真複写機のタイミン
グチャートの一部を用いて説明する。先ず転写材である
○ＨＰフィルムが転写ドラム５に把持されるのに先立ち
、いわゆる前回転時に内側帯電器５ｄ及び外側帯電器５
ｅは交流直流或いは交流に直流を重畳させて（内側帯電
器に交流を用いる際には外側帯電器にはそれとは逆位相
の交流で）転写材担持シートに残留した電荷を中和、或
いは減少させるべく同時に動作させる。次に、第１色目
のイエローの転写が開始する直前に外側帯電器５ｅのみ
停止させる。また、外側帯電器５ｅは第４色目のブラッ
クの転写が開始されると同時に動作を再開させる。そし
て前述のような転写材と転写材担持シートの分離が完了
した後、内側帯電器５ｄ、外側帯電器５ｅの動作を停止
させる。但し連続コピーのときは動作をくり返す。即ち
、外側帯電器５ｅの動作シーケンスは転写材に紙を用い
たシーケンスと全く同じであるが、内側帯電器５ｄは一
連の複写過程において間断なく連続的に動作させるとい
うものである。(Example) An example of the present invention will be described using a part of a timing chart of an electrophotographic copying machine shown in FIG. First, before the transfer material ○HP film is gripped by the transfer drum 5, the inner charger 5d and the outer charger 5 are charged during so-called pre-rotation.
e neutralizes or reduces the electric charge remaining on the transfer material carrying sheet by superimposing alternating current or direct current on alternating current (when using alternating current for the inner charger, use alternating current with the opposite phase for the outer charger) Operate at the same time as possible. Next, just before the transfer of the first color yellow starts, only the outer charger 5e is stopped. Further, the outer charger 5e restarts its operation at the same time as the transfer of the fourth color, black, is started. After the separation of the transfer material and the transfer material carrying sheet as described above is completed, the operations of the inner charger 5d and the outer charger 5e are stopped. However, during continuous copying, the operation is repeated. That is, the operation sequence of the outer charger 5e is exactly the same as the sequence when paper is used as the transfer material, but the inner charger 5d is operated continuously without interruption during a series of copying processes.
ここで、内側帯電器のみ動作している区間、即ち、第１
色目のイエローの転写開始時から第４色目のブラックの
転写開始時の間では、内側帯電器の出力は前回転及び転
写材分離の際の出力の略２／３分又はそれ以下で放電を
行う。好ましくは略１／２分以下が好ましい。これはＯ
ＨＰ用紙が回転中、転写材担持シートから剥れ落ちるの
を防止するのに有効である。Here, the section where only the inner charger is operating, that is, the first
Between the start of transfer of the color yellow and the start of transfer of the fourth color black, the output of the inner charger performs discharge at approximately 2/3 or less of the output during the previous rotation and transfer material separation. Preferably, the time is approximately 1/2 minute or less. This is O
This is effective in preventing the HP paper from peeling off from the transfer material carrying sheet during rotation.
ここで本発明のシーケンスをもとに前記した実験を行っ
てみた。その結果は第７図のグラフに示しである。表面
電位もかなり低い値に落ちつき、又、上記位置にあるセ
ンサー■から■に至る間の減衰もみられ第３図に示され
た転写材に紙を用いたときの結果に酷似していることが
わかる。これは取りも直さず、常に内側帯電器５ｄを動
作し、転写材及び転写材担持シートに蓄積しようとする
電荷を中和、減少させている効果の現れである。Here, the above-mentioned experiment was conducted based on the sequence of the present invention. The results are shown in the graph of FIG. The surface potential also settled to a fairly low value, and there was also attenuation between the sensor located at the above position from ■ to ■, which is very similar to the result when paper was used as the transfer material shown in Figure 3. Recognize. This is an effect of constantly operating the inner charger 5d to neutralize and reduce the charges that tend to accumulate on the transfer material and the transfer material carrying sheet.
尚、本発明の説明中では転写材に紙を用いた場合の説明
については、従来技術及び第２図のシーケンスと同様′
なので触れなかった。In the description of the present invention, the case where paper is used as the transfer material will be explained in the same manner as in the prior art and the sequence shown in FIG.
So I didn't touch it.
また、本実施例では内側帯電器５ｄを常に動作させる系
で説明したが、外側帯電器５ｅ、或いは内側帯電器５ｄ
と外側帯電器５ｅとも、常に動作させても同様の効果が
得られる、但し、帯電器の出力条件については前記した
が、これら帯電器を選択するにあたってはこの限りでは
ない。Furthermore, although this embodiment has been described with a system in which the inner charger 5d is always operated, the outer charger 5e or the inner charger 5d
The same effect can be obtained even if both the outer charger 5e and the outer charger 5e are operated all the time.However, although the output conditions of the charger have been described above, this is not the case when selecting these chargers.
ここで、転写材に普通紙を用いるモードにも本発明の転
写材にＯＨＰ用フィルムを用いるモードを適応させると
いう方法も考えられるが、このモードでは良い画像は得
られなまった。というのは転写材に普通紙を用いたとき
の帯電の様子は、第３図に示したとうりであり、最高で
も３ Ｋ Ｖ強と低い。Here, a method of adapting the mode of the present invention in which an OHP film is used as the transfer material to the mode in which plain paper is used as the transfer material may be considered, but good images could not be obtained in this mode. This is because when plain paper is used as the transfer material, the charging state is as shown in FIG. 3, and is as low as 3 KV at most.
ここで除電動作を常に働かせると電荷が急激に減衰し、
−変転写材に転写されたトナーが再度像担持体上に転写
されるという、いわゆるオフセット現象が起こってしま
うからである。また、普通紙と転写材担持シートとの吸
着に寄与していた電荷も減衰されるために普通紙がシー
トから剥離し、転写ドラム近傍の諸装置と接触し、紙上
に転写された像が著しく乱されるためである。If the static elimination operation is constantly performed here, the charge will rapidly attenuate,
- This is because a so-called offset phenomenon occurs in which the toner transferred to the variable transfer material is transferred onto the image carrier again. In addition, the charge that had contributed to the adhesion between the plain paper and the transfer material carrying sheet is also attenuated, causing the plain paper to peel off from the sheet and come into contact with various devices near the transfer drum, causing the image transferred on the paper to become significantly distorted. This is because it is disturbed.
なお、感光ドラムに代えてベルト又は電荷保持可能な絶
縁ドラムやベルトであっても良い。Note that instead of the photosensitive drum, a belt or an insulating drum or belt capable of retaining charges may be used.
（効果）
以上説明したように転写材にＯＨＰ用紙（ポリエステル
フィルム）を用いる際に内側、外側（或いは内側帯電器
と外側帯電器の両方とも）が常に作動しているような系
において、転写材及び転写材担持シートのチャージアッ
プ現象が防止され、転写効率の良い良好な画像を得るこ
とができる。(Effects) As explained above, when using OHP paper (polyester film) as a transfer material, in a system where the inner and outer chargers (or both the inner and outer chargers) are constantly in operation, the transfer material Also, the charge-up phenomenon of the transfer material carrying sheet is prevented, and a good image with high transfer efficiency can be obtained.
第１図は本発明が適用可能な従来カラー電子写真複写機
の要部説明図、
第２図は従来の電子写真複写機の一部タイミングチヤー
ド、
第３図は転写材を紙にしたときの表面電位の変化を示す
グラフ、
第４図は転写材をＯＨＰ用フィルムにしたときの従来シ
ーケンスによる表面電位の変化を示すグラフ、
第５図は実験に際して表面電位センサーを設置した位置
を示す転写ドラム周りの説明図、第６図は本発明のｏＨ
Ｐ用フィルムに関するタイミングチャート、
第７図は転写材をＯＨＰ用フィルムにしたときの本発明
のシーケンスによる表面電位の変化を示すグラフである
。
図において１は感光ドラム、２は一次帯電器、３は露光
光学系、４は現像装置、５は転写ドラム、５ｂは転写帯
電器、５ｄは内側帯電器、５ｅは外側帯電器、■、■は
表面電位計センサである。Figure 1 is an explanatory diagram of the main parts of a conventional color electrophotographic copying machine to which the present invention can be applied, Figure 2 is a partial timing diagram of a conventional electrophotographic copying machine, and Figure 3 is when paper is used as the transfer material. Figure 4 is a graph showing the change in surface potential according to the conventional sequence when OHP film is used as the transfer material. Figure 5 is a graph showing the position where the surface potential sensor was installed during the experiment. An explanatory diagram of the drum and its surroundings, Figure 6 is the oH of the present invention.
Timing Chart Regarding P Film FIG. 7 is a graph showing changes in surface potential according to the sequence of the present invention when the transfer material is an OHP film. In the figure, 1 is a photosensitive drum, 2 is a primary charger, 3 is an exposure optical system, 4 is a developing device, 5 is a transfer drum, 5b is a transfer charger, 5d is an inner charger, 5e is an outer charger, ■, ■ is a surface electrometer sensor.
Claims (1)
写材に順次転写する多重転写を行なう装置において、転
写材に普通紙を用いる転写モードと転写材に投影用樹脂
フィルムを用いる転写モードとを具備し、転写後で分離
位置までの間にある帯電器を転写材に普通紙を用いる転
写モードでは転写の前動作および分離時に動作させ、転
写材に投影用フィルムを用いる転写モードでは、転写の
前動作から転写材の分離時まで継続的に動作させること
を特徴とする画像形成装置。1. In an apparatus that performs multiple transfer in which toner images formed on an image carrier are sequentially transferred to a transfer material, there are two transfer modes: one in which plain paper is used as the transfer material, and the other in which a resin film for projection is used as the transfer material. In the transfer mode where plain paper is used as the transfer material, the charger located between the transfer position and the separation position is operated before the transfer and during separation, and in the transfer mode where the transfer material is a projection film, the charger is operated before the transfer and during separation. An image forming apparatus characterized in that it operates continuously from a pre-transfer operation to when a transfer material is separated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61125145A JPS62280874A (en) | 1986-05-30 | 1986-05-30 | Image forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61125145A JPS62280874A (en) | 1986-05-30 | 1986-05-30 | Image forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62280874A true JPS62280874A (en) | 1987-12-05 |
Family
ID=14902978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61125145A Pending JPS62280874A (en) | 1986-05-30 | 1986-05-30 | Image forming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62280874A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5528074A (en) * | 1978-08-21 | 1980-02-28 | Ricoh Co Ltd | Destaticizing method |
| JPS58189659A (en) * | 1982-04-28 | 1983-11-05 | Canon Inc | Transferring method |
| JPS59188673A (en) * | 1983-04-12 | 1984-10-26 | Canon Inc | Fixing device |
-
1986
- 1986-05-30 JP JP61125145A patent/JPS62280874A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5528074A (en) * | 1978-08-21 | 1980-02-28 | Ricoh Co Ltd | Destaticizing method |
| JPS58189659A (en) * | 1982-04-28 | 1983-11-05 | Canon Inc | Transferring method |
| JPS59188673A (en) * | 1983-04-12 | 1984-10-26 | Canon Inc | Fixing device |
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