JPS60189774A - Image recording device - Google Patents
Image recording deviceInfo
- Publication number
- JPS60189774A JPS60189774A JP59045122A JP4512284A JPS60189774A JP S60189774 A JPS60189774 A JP S60189774A JP 59045122 A JP59045122 A JP 59045122A JP 4512284 A JP4512284 A JP 4512284A JP S60189774 A JPS60189774 A JP S60189774A
- Authority
- JP
- Japan
- Prior art keywords
- subframe
- variable resistor
- machine frame
- charger
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
- G03G21/1839—Means for handling the process cartridge in the apparatus body
- G03G21/1842—Means for handling the process cartridge in the apparatus body for guiding and mounting the process cartridge, positioning, alignment, locks
- G03G21/185—Means for handling the process cartridge in the apparatus body for guiding and mounting the process cartridge, positioning, alignment, locks the process cartridge being mounted parallel to the axis of the photosensitive member
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/1604—Arrangement or disposition of the entire apparatus
- G03G21/1623—Means to access the interior of the apparatus
- G03G21/1633—Means to access the interior of the apparatus using doors or covers
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/1642—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements for connecting the different parts of the apparatus
- G03G21/1652—Electrical connection means
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
- G03G21/1839—Means for handling the process cartridge in the apparatus body
- G03G21/1867—Means for handling the process cartridge in the apparatus body for electrically connecting the process cartridge to the apparatus, electrical connectors, power supply
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/1651—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for connecting the different parts
- G03G2221/166—Electrical connectors
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2221/00—Processes not provided for by group G03G2215/00, e.g. cleaning or residual charge elimination
- G03G2221/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts
- G03G2221/18—Cartridge systems
- G03G2221/183—Process cartridge
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
一産業上の利用分野一
本考案は例えば電子写真複写機等のような画像記録装置
の機体構造に関し、特に、保守管理の必要性のない機体
構造に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a body structure of an image recording apparatus such as an electrophotographic copying machine, and particularly relates to a body structure that does not require maintenance.
−従来技術−
周知のように、電子写真複写機においては、その複写状
態を適正な状態に維持するのに、ひんばんな保守管理を
必要とするが、複写枚数の少ない小事業所向けの小型複
写機に対してひんばんにメンテナンス働サービスを行っ
たのでは、一枚当りのコピー代が非常に割高なものにな
ってしまう。-Prior Art- As is well known, electrophotographic copying machines require extensive maintenance and management to maintain the proper copying state. If maintenance services are frequently performed on the copying machine, the cost per copy will be extremely high.
このため、従来では、ひんばんな保守管理を必要とする
機能部、例えば感光体ドラム、帯電器、クリーニング装
置を一基のサブフレームに組付けて単体構造とし、所定
の複写枚数（例えば一方杖コピー）ごとに、サブフレー
ムごと新たな機能部と差替えることにより、保守管理の
手間と費用を合理化して、複写状態を適正な状態に維持
する試みがなされている（例えば、特公昭５Ｂ−８０８
８０号公報）。 ところで、最近の画像形成技術におい
ては、均一な放電現象が得られるため、像形成用感光体
ドラムに帯電を行う目的でスコロトロンチャージャが使
用される傾向があるが、スコロトロンチャージャにあっ
ては、そのグリッドと感光体ドラムとの電位差を厳密に
定める必要がある。したがって、前述したようにサブフ
レームに対して感光体ドラムとスコロトロンチャージャ
帯電器を組付けておいても、感光体ドラムの帯電特性の
個体差や帯電器のグリッドと感光体ドラム周面の間隔が
ロフトごとに異なるので、機体に対するサブフレームの
組付時に、スコロトロンチャージャのグリッドと感光体
ドラムの間の電位差を調整しなければならず、サブフレ
ームの差替時に必ずサービスエンジニャを立合せる必要
が生じ、差替構造による合理化に限界があった。For this reason, in the past, functional parts that required intensive maintenance management, such as the photoreceptor drum, charger, and cleaning device, were assembled into a single subframe to form a single structure, and a predetermined number of copies (for example, one Attempts have been made to rationalize the effort and cost of maintenance management and maintain the copy state in an appropriate state by replacing each subframe with a new functional part for each copy (for example, 808
Publication No. 80). By the way, in recent image forming technology, there is a tendency for scorotron chargers to be used for the purpose of charging the image forming photoreceptor drum because a uniform discharge phenomenon can be obtained. , it is necessary to strictly define the potential difference between the grid and the photoreceptor drum. Therefore, even if the photoreceptor drum and scorotron charger are assembled to the subframe as described above, there are individual differences in the charging characteristics of the photoreceptor drums and the distance between the grid of the charger and the circumferential surface of the photoreceptor drum. Since the voltage differs depending on the loft, the potential difference between the scorotron charger grid and the photoreceptor drum must be adjusted when the subframe is assembled to the aircraft, and a service engineer must be present when replacing the subframe. The need arose, and there were limits to rationalization through a replacement structure.
一発明の目的一
本発明の目的は、以上に述べたような従来の差替可能な
ユニット化サブフレームの実状に鑑み、機体に対する差
替時に何等の調整を必要とせずに、サブフレームを差替
えるだけで使用できるような画像記録装置構造を得るに
ある。1. Purpose of the Invention 1. In view of the actual situation of the conventional replaceable unitized subframes as described above, it is an object of the present invention to provide a method for replacing subframes without requiring any adjustment when replacing the aircraft. To obtain a structure of an image recording device that can be used simply by changing the structure.
一発明の構成−
この目的を達成するための本発明は、スコロトロンチャ
ージャのグリッドと感光体ドラムとの間の静電的な関係
は、電源電圧の如何によるのでなく、両者の空間的な関
係が特定しかつ用いる回路素子類が特定すれば、一義的
に定まることに着目し、てなされたもので、差替可能な
ユニット化サブフレームに少なくとも像形成用ドラムと
スコロトロンチャージャ帯電器を組付け、同サブフレー
ムごと像形成用ドラム及び帯電器を取替える画像記録装
置において、前記サブフレームに対して、前記帯電器と
像形成用ドラム間の印加電圧調整用可変抵抗器あるいは
両者間の電圧安定化用定電圧素子を組付けることにより
、予め帯電器と像形成用ドラムとの間の電気的関係を調
整することを提案するものである。Structure of the Invention - To achieve this object, the present invention provides that the electrostatic relationship between the grid of the scorotron charger and the photoreceptor drum does not depend on the power supply voltage, but the spatial relationship between the two. It was developed with the focus on the fact that it can be uniquely determined once the circuit elements are specified and the circuit elements to be used are specified, and at least an image forming drum and a scorotron charger are assembled into a replaceable unitized subframe. In an image recording apparatus in which the image forming drum and the charger are replaced for each subframe, a variable resistor for adjusting the voltage applied between the charger and the image forming drum or a voltage stabilizing device between the two is provided for the subframe. The present invention proposes that the electrical relationship between the charger and the image forming drum be adjusted in advance by assembling a constant voltage element for image forming.
−実施例− 以下１図面について本発明の実施例の詳細を説明する。-Example- DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to one drawing.
図示実施例は本発明による小型電子写真複写機を示し、
機体の左側に挿着される給紙力セラ）ｌ中の記録紙は、
図示を省略する給紙ローラによって、第２図示の記録紙
通路２へ送込まれる。そして機体上部の原稿台３は第２
図の左右方向へ往復動され、同原稿台３に位置される原
稿は照明光ｌＩ４により照明され、集束性光伝送体５（
レンズ）により感光体ドラム６の周面に投影されて静電
潜像が形成される。感光体ドラム６の周囲には、その回
転方向に順次整列したスコロトロンチャージャ帯電器７
、現像装置８、転写電極９、分離電極１０、除電極１１
．クリーニング装置１２が配置しである。したがって、
記録紙通路２を通って感光体ドラム６の周面に供給され
た記録紙Ｘに対しては、転写電極９位置を通る際に画像
が転写され、同記録紙Ｘは分離電極ｌＯの静電荷により
感光体ドラム６から分離され、図示を省略する定着装置
を通って機体左端の排紙トレー１３上に取出される。The illustrated embodiment shows a compact electrophotographic copier according to the invention,
The recording paper in the paper feeder (which is inserted into the left side of the machine) is
A paper feed roller (not shown) feeds the paper into the recording paper path 2 shown in the second drawing. The document table 3 at the top of the machine is the second
The document that is reciprocated in the left-right direction in the figure and placed on the document table 3 is illuminated by illumination light lI4, and the convergent light transmitter 5 (
An electrostatic latent image is projected onto the circumferential surface of the photoreceptor drum 6 by a lens) to form an electrostatic latent image. Around the photoreceptor drum 6, scorotron chargers 7 are arranged sequentially in the rotation direction of the photoreceptor drum 6.
, developing device 8, transfer electrode 9, separation electrode 10, removal electrode 11
．． A cleaning device 12 is arranged. therefore,
An image is transferred to the recording paper X supplied to the circumferential surface of the photoreceptor drum 6 through the recording paper path 2 as it passes through the transfer electrode 9 position, and the recording paper X receives the electrostatic charge of the separation electrode IO. The sheet is separated from the photoreceptor drum 6, passes through a fixing device (not shown), and is taken out onto a sheet discharge tray 13 at the left end of the machine.
本発明によれば、前記感光体ドラム６、スコロトロンチ
ャージャ帯電器７、除電極１１、クリーニング装置１２
は、差替可能なユニット化サブフレーム１４に組付けら
れる。即ち、電気絶縁性樹脂で成形するサブフレーム１
４は、下部機体フレーム１５Ａに開放可能に支持した一
ヒ部機体フレーム１５Ｂに形成する開放部に位置される
一対の端板１４ａ、１４ｂと、これらの端板１４ａ 、
１４ｂ間を連結するクリーニング装置１２の捕集箱１
２ａ及び連結片１４ｃとを備える。そして、前記端板１
４ａ 、 １４ｂ間には感光体ドラム６が回転可能に支
持され、同感光体ドラム６の上部にはスコロトロンチャ
ージャ帯電器７が端板１４ａ 、 １４ｂ間に掛渡され
た状態で取付けである。また、サブフレーム１４は上部
機体フレーム１５Ｂの開口部１８に取付けた一対のガイ
ドレール１？Ａ 、 １７Ｂに保合できる一対の取付耳
１４ｄ 、 １４ｅを有するから、単体構造化されたサ
ブフレーム１４は第１図示の状態から上部機体フレーム
１５Ｂの開口部１８に挿入するだけで機体に装着できる
。According to the present invention, the photosensitive drum 6, the scorotron charger 7, the removing electrode 11, and the cleaning device 12
is assembled into a replaceable unitized subframe 14. That is, the subframe 1 is molded from electrically insulating resin.
4 is a pair of end plates 14a and 14b located at an open part formed in the lower body frame 15B, which is supported in a releasable manner on the lower body frame 15A, and these end plates 14a,
Collection box 1 of cleaning device 12 connecting between 14b
2a and a connecting piece 14c. And the end plate 1
A photoreceptor drum 6 is rotatably supported between the end plates 14a and 14b, and a scorotron charger 7 is attached to the upper part of the photoreceptor drum 6 in a state that it is stretched between the end plates 14a and 14b. The subframe 14 also includes a pair of guide rails 1 attached to the opening 18 of the upper body frame 15B. Since it has a pair of mounting ears 14d and 14e that can be secured to A and 17B, the single-piece subframe 14 can be attached to the fuselage by simply inserting it into the opening 18 of the upper fuselage frame 15B from the state shown in the first figure. .
前記サブフレーム１４の端板１４ａの外側面には、第１
図に示すポケット１８が形成され、同ボケッ）１８中に
位置した回路素子類の接地電極１８とホット側コネクタ
２０を機体に接続するだけで、サブフレーム１４と機体
との電気的接続を完了できるようにしである。即ち、ボ
ケッ）１Ｂ中に組込まれる回路素子類は、個体差のある
感光体ドラム６とスコロトロンチャージャ帯電器７のグ
リッド７ａとの間の電位差を補償するもので、第３図示
のように電位差調整用可変抵抗器Ｒ１昇圧用オペアンプ
ＡＭＰ、ツェナーダイオードやバリスタ等の定電圧素子
りを含みこれらの回路素子の接地側は接地電極１９に、
電源電圧側はホット側コネクタ２０に引出しである。勿
論、接地電極１８は、サブフレーム１４が上部機体フレ
ーム１５Ｂに完全に挿着されたとき、上部機体フレーム
１５Ｂの電極板２１に接触できるものである。On the outer surface of the end plate 14a of the subframe 14, a first
A pocket 18 shown in the figure is formed, and the electrical connection between the subframe 14 and the fuselage can be completed by simply connecting the ground electrode 18 of the circuit elements located in the pocket 18 and the hot side connector 20 to the fuselage. That's how it is. That is, the circuit elements incorporated in the Bokeh 1B compensate for the potential difference between the photosensitive drum 6 and the grid 7a of the scorotron charger 7, which have individual differences, as shown in the third diagram. The grounding side of these circuit elements is connected to the grounding electrode 19, including the adjusting variable resistor R1, the boosting operational amplifier AMP, and constant voltage elements such as Zener diodes and varistors.
The power supply voltage side is a drawer to the hot side connector 20. Of course, the ground electrode 18 can contact the electrode plate 21 of the upper body frame 15B when the subframe 14 is completely inserted into the upper body frame 15B.
図示実施例は、以上のような構成であるから、組立てた
サブフレーム１４ごとに、スコロトロンチャージャ帯電
器７と感光体ドラム６との間の電位差を測定しながら、
可変抵抗器Ｈにより帯電量を適正な値に定め、可変抵抗
機Ｒを固定状態におくことにより、ユニー、ト化サブフ
レーム１４の差替時の調整作業を省略できる。即ち、任
意のサブフレーム１４においては、組付けられる感光体
ドラム６、スコロトロンチャージャ帯電器７、オペアン
プＡＭＰ、定電圧素子りの電気的特性及びこれらの空間
的関係により帯電器が一義的に定まるので、可変抵抗器
Ｒにより、予め、この値を調整しておけば、サブフレー
ム１４の差替時の調整作業は必要としなくなる。したが
って、サブフレーム１４の取替時にサービスエンジニア
をＳ’１合わさなくとも、サブフレーム１４の取替のみ
によって適正な画像を記録できる。Since the illustrated embodiment has the above-described configuration, while measuring the potential difference between the scorotron charger 7 and the photosensitive drum 6 for each assembled subframe 14,
By setting the amount of electrification to an appropriate value using the variable resistor H and keeping the variable resistor R in a fixed state, adjustment work when replacing the unitary and torpedo subframes 14 can be omitted. That is, in any subframe 14, the charger is uniquely determined by the electrical characteristics of the assembled photoreceptor drum 6, scorotron charger 7, operational amplifier AMP, and constant voltage element, and their spatial relationship. Therefore, if this value is adjusted in advance using the variable resistor R, no adjustment work is required when replacing the subframe 14. Therefore, a proper image can be recorded only by replacing the sub-frame 14 without requiring a service engineer to consult S'1 when replacing the sub-frame 14.
なお、本発明は２前記実施例に限定するものではなく、
感光体の帯電特性、帯電極と感光体との距離関係、帯電
極への印加電圧に応じ、バリスタ単体をその電圧−電流
特性毎に交換して調整を行ってもよい。It should be noted that the present invention is not limited to the above two embodiments,
Depending on the charging characteristics of the photoreceptor, the distance relationship between the charging electrode and the photoreceptor, and the voltage applied to the charging electrode, adjustments may be made by replacing individual varistors for each voltage-current characteristic.
一発明の効果−
以上の説明から明らかなように、本発明によれば、ユニ
ー／ ト化サブフレームの取替時に、何等の調整作業を
必要としなくなるので、ユーザにおいて取替作業をさせ
ることができ、メンテナンス中サービスを合理化できる
効果がある。Effects of the Invention - As is clear from the above description, according to the present invention, no adjustment work is required when replacing the unit/integrated subframe, so the user does not have to perform the replacement work. This has the effect of streamlining services during maintenance.
第１図は本発明による電子写真複写機の全体斜視図、第
２図は同複写機要部の拡大断面図、第３図はスコロトロ
ンチャージャのグリ・ンド電圧発生回路図である。
６・・・感光体ドラム、
７・・・スコロトロンチャージャ帯電器、７ａ・・・（
同帯電器の）グリッド、
１４・・・サブフレーム、１８・・・接地電極、Ｄ・・
・定電圧素子、 Ｒ・・・可変抵抗器。
特許出願人 小西六写真工業株式会社
第３図FIG. 1 is an overall perspective view of an electrophotographic copying machine according to the present invention, FIG. 2 is an enlarged sectional view of essential parts of the copying machine, and FIG. 3 is a diagram of a grid voltage generation circuit of a scorotron charger. 6... Photosensitive drum, 7... Scorotron charger, 7a... (
(of the same charger) grid, 14... subframe, 18... ground electrode, D...
- Constant voltage element, R...variable resistor. Patent applicant: Konishiroku Photo Industry Co., Ltd. Figure 3
Claims (1)
像形成用ドラムとスコロトロンチャージャ帯電器を組付
け、同サブフレームごと像形成用ドラム及び帯電器を取
替える画像記録装置において、前記サブフレームに対し
て、前記帯電器と像形成用ドラム間の印加電圧調整用可
変抵抗器あるいは両者間の電圧安定化用定電圧素子を組
付けることにより、予め帯電器と像形成用ドラムとの間
の電気的関係を調整することを特徴とする画像記録装置
。1) In an image recording apparatus in which at least an image forming drum and a scorotron charger are assembled in a replaceable unitized subframe, and the image forming drum and charger are replaced for each subframe, , by assembling a variable resistor for adjusting the voltage applied between the charger and the image forming drum or a constant voltage element for stabilizing the voltage between the two, the electrical relationship between the charger and the image forming drum can be established in advance. An image recording device characterized by adjusting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59045122A JPS60189774A (en) | 1984-03-09 | 1984-03-09 | Image recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59045122A JPS60189774A (en) | 1984-03-09 | 1984-03-09 | Image recording device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60189774A true JPS60189774A (en) | 1985-09-27 |
Family
ID=12710459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59045122A Pending JPS60189774A (en) | 1984-03-09 | 1984-03-09 | Image recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60189774A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS634253A (en) * | 1986-06-24 | 1988-01-09 | Canon Inc | Process cartridge and image forming device using process cartridge |
| JPH07121088A (en) * | 1994-06-06 | 1995-05-12 | Canon Inc | Process cartridge and image forming device |
| US5652647A (en) * | 1992-09-04 | 1997-07-29 | Canon Kabushiki Kaisha | Process cartridge, method for assembling process cartridge and image forming apparatus |
| US7505705B2 (en) * | 2006-03-06 | 2009-03-17 | Lexmark International, Inc. | Electrical discharging of image transfer assemblies |
| CN103777507A (en) * | 2012-10-17 | 2014-05-07 | 佳能株式会社 | Image heating apparatus |
-
1984
- 1984-03-09 JP JP59045122A patent/JPS60189774A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS634253A (en) * | 1986-06-24 | 1988-01-09 | Canon Inc | Process cartridge and image forming device using process cartridge |
| US5652647A (en) * | 1992-09-04 | 1997-07-29 | Canon Kabushiki Kaisha | Process cartridge, method for assembling process cartridge and image forming apparatus |
| US6308028B1 (en) | 1992-09-04 | 2001-10-23 | Canon Kk | Process cartridge having a particular electrical contact arrangement and image forming apparatus using such a process cartridge |
| JPH07121088A (en) * | 1994-06-06 | 1995-05-12 | Canon Inc | Process cartridge and image forming device |
| US7505705B2 (en) * | 2006-03-06 | 2009-03-17 | Lexmark International, Inc. | Electrical discharging of image transfer assemblies |
| CN103777507A (en) * | 2012-10-17 | 2014-05-07 | 佳能株式会社 | Image heating apparatus |
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