JPS6338705B2 - - Google Patents
Info
- Publication number
- JPS6338705B2 JPS6338705B2 JP18247080A JP18247080A JPS6338705B2 JP S6338705 B2 JPS6338705 B2 JP S6338705B2 JP 18247080 A JP18247080 A JP 18247080A JP 18247080 A JP18247080 A JP 18247080A JP S6338705 B2 JPS6338705 B2 JP S6338705B2
- Authority
- JP
- Japan
- Prior art keywords
- image
- image forming
- unit
- color
- photosensitive drum
- 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.)
- Expired
Links
- 239000002699 waste material Substances 0.000 description 9
- 238000000926 separation method Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 108091008695 photoreceptors Proteins 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 108010010803 Gelatin Proteins 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 1
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
- G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Description
【発明の詳細な説明】
本発明は、画像形成装置に係り、詳しくは、像
担持体上に静電像形成手段にて光像露光に応じた
静電潜像を形成し、現像手段にて現像する画像形
成装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an image forming apparatus, and more specifically, an electrostatic latent image is formed on an image carrier by an electrostatic image forming means in response to light image exposure, and a developing means forms an electrostatic latent image on an image bearing member. The present invention relates to an image forming apparatus that performs development.
従来、カラー複写装置等の多色再現を成す画像
形成装置においては、赤・緑・青の各色分解潜像
に応じてシアン、マゼンタ、イエローの各色トナ
ーの現像を選択的に行なう必要がある。従来各色
トナーの選択的現像の方法として一定の現像位置
に潜像に応じて現像器を移動させる方法あるいは
複数の現像器を感光ドラム周辺に並べて置き、潜
像に応じて現像器と感光ドラムとの距離を変える
方法、または潜像に応じて機械的に現像剤をかき
落として供給を停止させる方法等があつたが、い
ずれも機械的に複雑であり、コスト的にも問題が
あつた。 Conventionally, in an image forming apparatus that reproduces multiple colors, such as a color copying apparatus, it is necessary to selectively develop cyan, magenta, and yellow color toners in accordance with red, green, and blue color separation latent images. Conventional methods for selectively developing toner of each color include moving a developing device to a fixed development position according to the latent image, or placing a plurality of developing devices side by side around the photosensitive drum, and moving the developing device and the photosensitive drum according to the latent image. There have been methods such as changing the distance between the developer and stopping the supply of the developer by mechanically scraping off the developer depending on the latent image, but both methods are mechanically complicated and pose problems in terms of cost.
又、潜像形成時においては、使用する所定色ト
ナーに合わせて画像形成条件主として画像露光量
を設定する必要がある。これは、赤・緑・青の各
色分解フイルターの波長カツト領域透過率、照明
ランプ発光波長分布強度、感光ドラムの分光感度
によつて感光ドラムの色分解後の潜像電位が所定
の値にならず、カラーバランスが狂い品質の劣悪
な画像となるためである。このため従来のカラー
複写装置内においては、色分解潜像形成時におい
て、色分解フイルターの交換とともに照明ランプ
の点燈電圧制御及び光像径路中にNDフイルター
の交換、感光ドラム上の適正画像露光量の設定に
より所定色トナーに対する潜像形成を行なつてい
た。 Further, when forming a latent image, it is necessary to set the image forming conditions, mainly the image exposure amount, in accordance with the predetermined color toner used. This means that the potential of the latent image after color separation on the photosensitive drum reaches a predetermined value depending on the wavelength cut region transmittance of each color separation filter for red, green, and blue, the intensity of the illumination lamp's emission wavelength distribution, and the spectral sensitivity of the photosensitive drum. This is because the color balance is disturbed and the quality of the image is poor. For this reason, in a conventional color copying device, when forming a color separation latent image, in addition to replacing the color separation filter, lighting voltage control of the illumination lamp, replacement of the ND filter during the optical image path, and proper image exposure on the photosensitive drum are required. A latent image is formed on a predetermined color toner by setting the amount.
しかし上述の制御機構は複雑なもので、感光体
ドラムの分光感度がバラツク場合、新らたな設定
値を試行錯誤的操作によりみつけ出さなければな
らなかつた。 However, the above-mentioned control mechanism is complicated, and if the spectral sensitivity of the photosensitive drum varies, new set values must be found through trial and error operations.
しかも、この様な複雑な機構を要する為に、装
置が大型で高価なものとなつた。 Moreover, since such a complicated mechanism is required, the device becomes large and expensive.
一方、事務所等に於ける複写では、白黒コピー
で大半は十分であり、時として簡易な２色カラー
（赤印、赤文字と黒色文字、図形）が容易に得ら
れる装置が望まれているが、簡易な構成のものは
未だ知られていない。 On the other hand, for copying in offices, etc., black-and-white copying is sufficient for most cases, and sometimes a device that can easily produce two-color copies (red stamps, red and black characters, figures) is desired. However, no one with a simple configuration is known yet.
本発明は、上述の点に鑑み成されたもので、簡
易で良好な画像形成を可能とする画像形成装置に
着脱可能な像形成ユニツトを提供するものであ
る。 The present invention has been made in view of the above-mentioned points, and provides an image forming unit that is detachable from an image forming apparatus and that enables simple and good image formation.
即ち、本発明は像担持体上に形成された静電潜
像を現像して像を形成する画像形成装置に対し着
脱可能な像形成ユニツトが、少なくとも現像手段
と、この現像手段の現像特性に応じて設けられた
潜像形成用フイルター手段とを有することを特徴
とする。 That is, the present invention provides an image forming unit that is removably attached to an image forming apparatus that develops an electrostatic latent image formed on an image carrier to form an image. It is characterized in that it has a latent image forming filter means provided accordingly.
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図は感光体とホツパーと廃トナー貯蔵部と
を１体化した消耗品を含む交換ユニツトを装備し
た画像形成装置を示す概略説明図である。 FIG. 1 is a schematic explanatory diagram showing an image forming apparatus equipped with a replacement unit including a consumable item that integrates a photoreceptor, a hopper, and a waste toner storage section.
第２図は第１図の装置において消耗品を含む交
換ユニツトを取りはずすとき装置が上部１１と下
部１２に別れる構成になつていることを示す概略
斜視図である。 FIG. 2 is a schematic perspective view showing that the apparatus shown in FIG. 1 is configured to be separated into an upper part 11 and a lower part 12 when a replacement unit containing consumables is removed.
第３図は、第２図において、消耗品を含む交換
ユニツト１３を装置本体から取りはずした場合も
しくは取りつける場合を示す概略説明図である。 FIG. 3 is a schematic explanatory diagram showing a case where the replacement unit 13 containing consumables is removed from or attached to the main body of the apparatus in FIG.
第１図の１は光導電層を含む感光体ドラムで表
面に絶縁層を有するものあるいは有しないもの、
いずれも使用可能で勿論シート状、ベルト状のも
のでも可能である。２は感光化帯電装置で、３は
原稿像又は光像、或は画像信号により変調された
光ビームなどを投影する光像照射装置である。こ
れらにより感光体１に静電像を形成する。この静
電像形成プロセスはカールソンプロセス、あるい
は特公昭42−23910号公報、同43−24748号公報、
同42−19748号公報、同44−13437号公報などに記
載のプロセス、その他のプロセスが適用できる。
４は現像装置で本出願人特願昭52−109240号に記
載されている現象を利用した１成分系高抵抗磁性
トナーを用いた現像装置である。５は現像装置４
のトナー補給用ホツパーである。６は現像装置４
によつて可視化されたトナー像を転写材７に転写
する装置である。８は転写後の感光体１上の残留
トナーを清掃して除去し感光体の再使用のための
クリーニング装置である。９はクリーニングによ
つて生じた廃トナーの貯蔵部である。ホツパー５
と感光体ドラム１と廃トナー貯蔵部９の三者は第
２，３図に示す様にアーム２６によつて１体化さ
れ第２図に示す様にシヤフト１０によつて装置本
体に装着してある。本実施例ではシヤフトは装置
下部本体側板に固定され、感光ドラムはシヤフト
に対して自在に回転可能である。 1 in FIG. 1 is a photosensitive drum containing a photoconductive layer, with or without an insulating layer on the surface;
Any of them can be used, and of course sheet-like or belt-like ones are also possible. 2 is a photosensitive charging device, and 3 is a light image irradiation device that projects a document image, a light image, or a light beam modulated by an image signal. An electrostatic image is formed on the photoreceptor 1 by these. This electrostatic image forming process is known as the Carlson process, or as disclosed in Japanese Patent Publications No. 42-23910, No. 43-24748,
The processes described in Publication No. 42-19748, Publication No. 44-13437, and other processes can be applied.
Reference numeral 4 denotes a developing device which uses a one-component high resistance magnetic toner utilizing the phenomenon described in Japanese Patent Application No. 109240/1983. 5 is the developing device 4
This is a hopper for replenishing toner. 6 is the developing device 4
This is a device that transfers the toner image visualized by the toner image onto the transfer material 7. Reference numeral 8 denotes a cleaning device for cleaning and removing residual toner on the photoreceptor 1 after transfer so that the photoreceptor can be reused. 9 is a storage section for waste toner generated by cleaning. Hopper 5
The photosensitive drum 1 and the waste toner storage section 9 are integrated by an arm 26 as shown in FIGS. 2 and 3, and are attached to the main body of the apparatus by a shaft 10 as shown in FIG. There is. In this embodiment, the shaft is fixed to the side plate of the lower main body of the apparatus, and the photosensitive drum is freely rotatable with respect to the shaft.
そして、モーターからギアによつて伝えられた
回転をドラム駆動ギア１３に伝え、ドラム駆動ギ
アと感光体とは連動して回転する。第３図に示す
様に、本体を上部と下部に分離したとき、クリー
ナーの上部２０及び現像器の押え部分２１は本体
上部の移動に伴つて移動し、クリーナーの廃トナ
ー貯蔵部９は本体下部の位置に留まり、廃トナー
貯蔵部９及び現像器４及び感光ドラム１の１体化
ユニツトの着脱を容易に行なえる構成としてい
る。第３図は該ユニツトを本体からはずした状態
を示す。 Then, the rotation transmitted from the motor by the gear is transmitted to the drum drive gear 13, and the drum drive gear and the photoreceptor rotate in conjunction with each other. As shown in FIG. 3, when the main body is separated into an upper part and a lower part, the upper part 20 of the cleaner and the holding part 21 of the developer move as the upper part of the main body moves, and the waste toner storage section 9 of the cleaner is located in the lower part of the main body. The integrated unit of the waste toner storage section 9, the developing device 4, and the photosensitive drum 1 can be easily attached and detached. FIG. 3 shows the unit removed from the main body.
廃トナー貯蔵部９及び現像器５及び感光体ドラ
ム１の位置出しは次の様に行なわれる。 The positioning of the waste toner storage section 9, the developing device 5, and the photosensitive drum 1 is performed as follows.
たとえば所定の消耗品耐用期間終了交換時もし
くは所定色現像器交換時期時に、第３図のように
装置本体に交換するユニツトを入れてた場合、本
体下部に取りつけられてあるクリーナーの下部部
分２２及び現像器の位置出しステー２３によつて
該ユニツトは受けとめられる。次いで上記本体と
下部本体とを結合したとき、上部本体にとりつけ
ているクリーナーの上部部分２０及び現像器の上
部部分２１によつて正確に位置出しが行なわれ
る。２４，２５は廃トナー回収部９及び現像器４
を下部の各部材２２，２３へつきあてて密着性を
確実にするためのパツキング部材である。さらに
感光ドラムの位置出しはシヤフト１０によつてパ
ツキング部材の遊びも吸収して正確な位置出しが
行なわれる。この場合、廃トナー貯蔵部及び現像
器の位置出しが行なわれた場合、アーム２６の支
持部材によつて感光ドラムの位置出しを行なうこ
ともできる。 For example, when replacing a predetermined consumable item at the end of its useful life or when replacing a predetermined color developer, if a unit to be replaced is inserted into the main body of the apparatus as shown in FIG. The unit is received by a positioning stay 23 of the developing device. When the main body and the lower main body are then connected, accurate positioning is achieved by the upper part 20 of the cleaner and the upper part 21 of the developer attached to the upper main body. 24 and 25 are a waste toner collecting section 9 and a developing device 4
This is a packing member for ensuring adhesion by abutting the lower parts 22 and 23 against each other. Furthermore, the shaft 10 absorbs the play of the packing member to ensure accurate positioning of the photosensitive drum. In this case, when the waste toner storage section and the developing device have been positioned, the support member of the arm 26 can also be used to position the photosensitive drum.
上記消耗品を含む定期交換ユニツトは図に示す
様に光学的開口部２７が設けられ色分解フイルタ
ー２８ａ或はNDフイルタ２８ｂを設けている。
実施例においてはゼラチン・トリアセテート樹脂
板に染料を分散した市販の安価な染料フイルター
を用いている。この様にユニツトの所定色現像剤
に応じた色分解フイルターを該ユニツトに設ける
ことでカラーコピーが可能となる。 The periodic replacement unit containing the above consumables is provided with an optical aperture 27 and a color separation filter 28a or ND filter 28b as shown in the figure.
In the examples, a commercially available inexpensive dye filter in which dye is dispersed in a gelatin triacetate resin plate is used. In this way, color copying becomes possible by providing the unit with a color separation filter corresponding to the predetermined color developer of the unit.
又、該ユニツトの光学的開口部には、フイルタ
ーを複数設けてもよい。たとえば照明光源として
ハロゲンランプを用い、又感光ドラムとしてCdS
−絶縁層感光体ドラムを用いている複写機におい
ては、青色系の感度が若干悪くカラーコピーの再
現が必ずしも忠実ではない。この場合、青色フイ
ルター通過後の露光量を赤色フイルター、緑色フ
イルターを用いる場合よりも増加させることを要
する。このとき、赤色・緑色を基準にする場合、
青色は約２割程度のハロゲン点燈電圧を増加する
必要があつたので、青色の露光量を適正値と設定
すると、赤色、緑色では淡い濃度のNDフイルタ
ーをそれぞれの色フイルターといつしよに重ねて
用いる様にすると良好である。この様に消耗品を
含む交換ユニツトのセツトによつて同時に処理で
きるのである。 Further, a plurality of filters may be provided in the optical aperture of the unit. For example, a halogen lamp is used as the illumination light source, and CdS is used as the photosensitive drum.
- In copying machines using insulating layer photosensitive drums, the sensitivity of blue colors is somewhat poor, and the reproduction of color copies is not necessarily faithful. In this case, it is necessary to increase the amount of exposure after passing through the blue filter compared to when using a red filter or a green filter. At this time, if red and green are used as standards,
For blue, it was necessary to increase the halogen lighting voltage by about 20%, so when the exposure amount for blue was set to an appropriate value, an ND filter with a light density was used for red and green, along with the respective color filters. It is better to use them in layers. In this way, a set of replacement units including consumables allows simultaneous processing.
又、通常感光体ドラムの感度のバラツキがある
が、いくつかの波長域毎に透過率をかえた分光フ
イルターを図のユニツトに設けることで、感度の
バラツキを補正することができる。この場合、現
像器と感光体ドラムとを１体化ユニツトにして使
うと良好である。 Furthermore, although there is normally variation in the sensitivity of photosensitive drums, this variation in sensitivity can be corrected by providing the unit shown in the figure with a spectral filter having a different transmittance for each wavelength range. In this case, it is preferable to use the developing device and the photosensitive drum as an integrated unit.
又、上記NDフイルターを設定する替りに開口
幅を調整したスリツトを設けても良い。 Further, instead of setting the above-mentioned ND filter, a slit with an adjusted opening width may be provided.
上述実施例にては、現像器と廃トナー貯蔵部を
一体交換可能な例を示したが、現像器と前述フイ
ルターの組合せのみのユニツトでも良い。 In the above-mentioned embodiment, an example was shown in which the developing device and the waste toner storage section can be replaced as one unit, but a unit consisting only of a combination of the developing device and the above-mentioned filter may also be used.
又、帯電器と現像器とをユニツト化して交換す
ることも出来る。このとき現像器の供給色現像剤
特性に応じて帯電器のワイヤー位置を設定して、
ユニツトに応じた最適帯電を成すようにすること
も好適である。 Furthermore, the charging device and the developing device can be combined into a unit and replaced. At this time, the wire position of the charger is set according to the characteristics of the color developer supplied to the developer,
It is also preferable to achieve optimal charging depending on the unit.
以上具体例にて詳述した如く本発明装置は、現
像手段の交換にて簡易に所望色再現を可能とする
優れたものである。 As described above in detail in the specific examples, the apparatus of the present invention is excellent in that it can easily reproduce a desired color by replacing the developing means.
しかも、本発明の像形成ユニツトによれば、現
像手段の有する現像特性に応じて色分解フイルタ
ー等の潜像形成に関与する部材の特性を一致させ
て交換設置することが出来るので良好な画質を維
持することを可能とするのである。 Moreover, according to the image forming unit of the present invention, it is possible to replace and install members involved in latent image formation, such as color separation filters, while matching the characteristics of the members involved in latent image formation in accordance with the developing characteristics of the developing means. It makes it possible to maintain it.
第１図は、本発明に基く具体例画像形成装置の
説明図、第２図は第１図装置の内部を解放した状
態の斜視図、第３図は、現像手段等のユニツト部
を取り出す状態を説明する側面図。
図中１；感光体ドラム（像担持体）、２；感光
化帯電装置、３；光像照射装置、４；現像装置
（現像手段）、５；トナー補給用ホツパー。
FIG. 1 is an explanatory diagram of a specific example image forming apparatus based on the present invention, FIG. 2 is a perspective view of the apparatus shown in FIG. FIG. In the figure, 1: photosensitive drum (image carrier), 2: photosensitive charging device, 3: light image irradiation device, 4: developing device (developing means), 5: hopper for toner replenishment.
Claims (1)
像を形成する画像形成装置に対し着脱可能な像形
成ユニツトであつて、少なくとも現像手段と、こ
の現像手段の現像特性に応じて設けられた潜像形
成用フイルター手段とを有する像形成ユニツト。1 An image forming unit that is detachable from an image forming apparatus that develops an electrostatic latent image formed on an image carrier to form an image, and that includes at least a developing means and a developing characteristic of the developing means. and a latent image forming filter means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18247080A JPS57104951A (en) | 1980-12-22 | 1980-12-22 | Image-forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18247080A JPS57104951A (en) | 1980-12-22 | 1980-12-22 | Image-forming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57104951A JPS57104951A (en) | 1982-06-30 |
| JPS6338705B2 true JPS6338705B2 (en) | 1988-08-01 |
Family
ID=16118818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18247080A Granted JPS57104951A (en) | 1980-12-22 | 1980-12-22 | Image-forming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57104951A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5962879A (en) * | 1982-10-04 | 1984-04-10 | Canon Inc | Color printer device |
| JPS60252375A (en) * | 1984-05-29 | 1985-12-13 | Konishiroku Photo Ind Co Ltd | Copying device |
| US4916490A (en) * | 1984-12-01 | 1990-04-10 | Canon Kabushiki Kaisha | Image forming apparatus comprising a plurality of developing devices |
| JPH0680471B2 (en) * | 1985-03-04 | 1994-10-12 | キヤノン株式会社 | Image forming device |
| DE3850678T2 (en) * | 1987-01-09 | 1994-11-24 | Canon Kk | Work unit and multi-color imaging device equipped with it. |
| JP2663462B2 (en) * | 1987-10-21 | 1997-10-15 | ミノルタ株式会社 | Image forming device |
-
1980
- 1980-12-22 JP JP18247080A patent/JPS57104951A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57104951A (en) | 1982-06-30 |
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