JPH0611953A - Structure for installing screen lamp in image forming device - Google Patents
Structure for installing screen lamp in image forming deviceInfo
- Publication number
- JPH0611953A JPH0611953A JP41514290A JP41514290A JPH0611953A JP H0611953 A JPH0611953 A JP H0611953A JP 41514290 A JP41514290 A JP 41514290A JP 41514290 A JP41514290 A JP 41514290A JP H0611953 A JPH0611953 A JP H0611953A
- Authority
- JP
- Japan
- Prior art keywords
- belt
- screen lamp
- rollers
- shaped
- photoconductor
- 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
Landscapes
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、電子写真複写機やプリ
ンター、ファクシミリ等に用いられる画像形成装置にお
ける感光体上にスクリーン状の非帯電部を形成するスク
リーンランプを取付ける構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a screen lamp for forming a screen-shaped non-charged portion on a photosensitive member in an image forming apparatus used for an electrophotographic copying machine, a printer, a facsimile or the like.
【0002】画像形成装置としては、像担持体の周囲に
一次帯電器、像露光部、現像機、転写用帯電器、クリー
ナー等の画像形成機器を配設し、一次帯電器で像担持体
の表面を一様に帯電した後に像露光して静電潜像を形成
し、その静電潜像を現像機で可視像に現像し、その可視
像を用紙に転写用帯電器で転写し、その用紙を定着器に
送って定着すると共に、像担持体上の残留トナーをクリ
ーナーで清掃するようにしたものが知られている。As an image forming apparatus, an image forming apparatus such as a primary charging device, an image exposing section, a developing device, a transfer charging device, and a cleaner is arranged around the image carrier, and the primary charging device is used to The surface is uniformly charged and then imagewise exposed to form an electrostatic latent image, the electrostatic latent image is developed into a visible image by a developing machine, and the visible image is transferred onto a sheet by a transfer charger. It is known that the paper is sent to a fixing device to be fixed and the residual toner on the image carrier is cleaned with a cleaner.
【0003】このような、画像形成装置においては写真
原稿等の連続階調性のある原稿の再現性が悪いので、図
6に示す構造にして再現性を向上している。すなわち、
ベルト状感光体1の裏面における像露光部2と現像機3
との間にスクリーン4と光源5より成るスクリーンラン
プ6を配設し、帯電器7で一様帯電したベルト状感光体
1の表面に像露光部2で原稿像を照射露光して静電潜像
とし、この後にスクリーンランプ6よりスクリーン状の
光学模様をベルト状感光体1の裏面から照してスクリー
ン状の非帯電部を形成することで、前記静電潜像を微細
なストライブ状とし、この後に静電潜像を現像機3で可
視像に現像することで連続階調性のある原稿の再現性を
向上している。In such an image forming apparatus, since the reproducibility of an original having continuous gradation such as a photographic original is poor, the structure shown in FIG. 6 is used to improve the reproducibility. That is,
Image exposure unit 2 and developing unit 3 on the back surface of belt-shaped photoreceptor 1
A screen lamp 6 composed of a screen 4 and a light source 5 is disposed between and, and the surface of the belt-shaped photoconductor 1 uniformly charged by a charger 7 is irradiated with an original image by an image exposure unit 2 to expose the electrostatic latent image. An electrostatic latent image is formed into an image by forming an image, and then forming a screen-shaped non-charged portion by illuminating a screen-shaped optical pattern from the screen lamp 6 from the back surface of the belt-shaped photoreceptor 1. After that, the electrostatic latent image is developed into a visible image by the developing device 3 to improve the reproducibility of an original having continuous gradation.
【0004】[0004]
【発明が解決しようとする課題】かかる装置であると、
スクリーンランプ6のスクリーン4とベルト状感光体1
とのキャビティラチチュードが狭く、スクリーンランプ
6をベルト状感光体1に対して精度良く位置決めして取
付ける必要があり、そのスクリーンランプ6の取付け作
業が大変やっかいであるから組立作業が大変面倒となる
ばかりか、スクリーンランプ6の交換作業が大変面倒と
なる。そこで、本発明は前述の課題を解決できるように
した画像形成装置のスクリーンランプ取付構造を提供す
ることを目的とする。SUMMARY OF THE INVENTION With such a device,
The screen 4 of the screen lamp 6 and the belt-shaped photoreceptor 1
Has a narrow cavity latitude, and the screen lamp 6 needs to be accurately positioned and attached to the belt-shaped photosensitive member 1. Since the installation work of the screen lamp 6 is very troublesome, the assembling work is very troublesome. Or, the replacement work of the screen lamp 6 becomes very troublesome. Therefore, an object of the present invention is to provide a screen lamp mounting structure for an image forming apparatus, which is capable of solving the above-mentioned problems.
【0005】[0005]
【課題を解決するための手段】ベルト状感光体15の裏
面側における帯電領域と現像領域の中間位置にスクリー
ンランプ28を、前記ベルト状感光体15をガイドする
ローラ14を基準として取付けた画像形成装置における
スクリーンランプの取付構造。Image formation in which a screen lamp 28 is attached at an intermediate position between a charging area and a developing area on the back surface side of the belt-shaped photosensitive member 15 with a roller 14 for guiding the belt-shaped photosensitive member 15 as a reference. Screen lamp mounting structure for the device.
【作用】これにより、ベルト状感光体15はローラ14
に沿って回動し、スクリーンランプ28はローラ14を
基準として取付けてあるから、ベルト状感光体15とス
クリーンランプ28との隙間を所定の値となるようにス
クリーンランプ28を簡単に取付けできる。前部縦板1
0と後部縦板11を連結横杆12で相互に平行に連結し
て感光体支持フレーム13とし、この感光体支持フレー
ム13にベルト状感光体15を複数のローラ14に沿っ
て回動自在に設け、そのベルト状感光体15の周囲に帯
電器18、像露光部19、現像機20、転写器21等を
順次配設して画像形成装置とし、前記感光体支持フレー
ム13における帯電領域と現像領域の中間位置に一対の
ローラ14,14を狭い取付けピッチで取付け、この一
対のローラ14,14を基準としてスクリーンランプ2
8を取付けた画像形成装置におけるスクリーンランプ取
付構造。As a result, the belt-shaped photosensitive member 15 is moved to the roller 14
Since the screen lamp 28 is mounted on the roller 14 as a reference, the screen lamp 28 can be easily mounted so that the gap between the belt-shaped photosensitive member 15 and the screen lamp 28 becomes a predetermined value. Front vertical plate 1
0 and the rear vertical plate 11 are connected in parallel to each other by a connecting horizontal rod 12 to form a photoconductor support frame 13, and a belt-shaped photoconductor 15 is rotatably attached to the photoconductor support frame 13 along a plurality of rollers 14. A charging device 18, an image exposure unit 19, a developing device 20, a transfer device 21 and the like are sequentially arranged around the belt-shaped photoconductor 15 to form an image forming apparatus, and the charging area and the development in the photoconductor supporting frame 13 are performed. The pair of rollers 14 and 14 are attached to the intermediate position of the region with a narrow attachment pitch, and the screen lamp 2 is provided with the pair of rollers 14 and 14 as a reference.
8 is a screen lamp mounting structure in an image forming apparatus to which 8 is mounted.
【作用】これにより、ベルト状感光体15は取付けピッ
チの狭い一対のローラ14,14間においてスクリーン
ランプ28で光照射されるから、照射域においてベルト
状感光体15が波打ち(振動)することがなく、その両
者間の隙間がスクリーンランプ28の深度を超えたり、
パターンが一部分抜けたりすることがない。As a result, the belt-shaped photosensitive member 15 is irradiated with light by the screen lamp 28 between the pair of rollers 14, 14 having a narrow mounting pitch, so that the belt-shaped photosensitive member 15 may wave (vibrate) in the irradiation area. , The gap between them exceeds the depth of the screen lamp 28,
Part of the pattern does not come off.
【0007】[0007]
【実施例】図5に示すように、前縦板10と後縦板11
を複数の連結横杆12で平行に連結して感光体支持フレ
ーム13とし、この感光体支持フレーム13に複数のロ
ーラ14を介してベルト状感光体15が巻装してあり、
前記感光体支持フレーム13は左右に設けたガイドレー
ル16,16を装置本体側に設けたレール17に沿って
摺動することで装置本体に挿入、引き出し自在となって
いる。前記装置本体側には帯電器18、像露光部19、
現像機20、転写器21、剥離器22、剥離爪23、ク
リーナ24等がベルト状感光体15の周囲に順次対向す
るように設けてあり、帯電器18で一様帯電したベルト
状感光体15の表面に像露光部19で原稿像を照射露光
して静電潜像を形成し、その静電潜像を現像機20で可
視像に現像し、その可視像を用紙供給路25より送られ
た用紙に転写器21で転写して剥離爪23で剥離した後
にトランスポート26で定着器27に送って定着するよ
うに構成してある。前記感光体支持フレーム13におけ
る像露光部19と現像機20との中間にスクリーンラン
プ28がベルト状感光体15の裏面と対向して配設して
ある。EXAMPLE As shown in FIG. 5, a front vertical plate 10 and a rear vertical plate 11
Are connected in parallel by a plurality of connecting horizontal rods 12 to form a photoconductor supporting frame 13, and a belt-shaped photoconductor 15 is wound around the photoconductor supporting frame 13 via a plurality of rollers 14.
The photoconductor support frame 13 can be inserted into and pulled out from the apparatus main body by sliding guide rails 16, 16 provided on the left and right along a rail 17 provided on the apparatus main body side. A charger 18, an image exposure unit 19, and
A developing device 20, a transfer device 21, a peeling device 22, a peeling claw 23, a cleaner 24, and the like are provided so as to sequentially face the periphery of the belt-shaped photoconductor 15, and the belt-shaped photoconductor 15 uniformly charged by a charger 18. The surface of the sheet is irradiated with an original image by the image exposure unit 19 to form an electrostatic latent image, the electrostatic latent image is developed into a visible image by the developing machine 20, and the visible image is fed from the paper supply path 25. It is configured such that the transferred paper is transferred by the transfer device 21 and peeled by the peeling claw 23 and then sent by the transport 26 to the fixing device 27 for fixing. A screen lamp 28 is disposed between the image exposing portion 19 and the developing device 20 on the photoconductor supporting frame 13 so as to face the back surface of the belt-shaped photoconductor 15.
【0008】該スクリーンランプ28は図1ないし〜図
4に示すように、ランプを内蔵したランプハウジング3
0の上部にスクリーン31を設けると共に、そのランプ
ハウジング30の上部にカバー32を取付けたランプ本
体33と、そのランプ本体33の長手両方向端面に取付
けた略T字状の側板34,34より成る合成樹脂製の本
体部35を備え、その本体部35のランプハウジング3
0の側面に金属製の取付板36を熱カシメで取付けて構
成してあり、その取付板36の長手方向一端部に支持ピ
ン37が設けられ、他端部には取付片38が一体的に形
成してあり、左右一対の側板34,34を前後縦板1
0,11間に亘って横架した一対のローラ14,14を
基準として取付けてある。つまり、支持プレート39の
上下方向の切欠溝40よりボルト41を後部縦板11に
螺合して支持プレート39を後部縦板11の内面に取付
け、この支持プレート39の上部折曲片39aに支持ピ
ン37を載置すると共に、前部縦板10の上下方向の長
穴42よりボルト43を取付片38のネジ孔44に螺合
してスクリーンランプ28を仮保持し、支持プレート3
9を上方に移動して一方の側板34を一対のローラ14
を後縦板11に回転自在に支承する軸受けブッシュ14
aに押しつけてボルト41を締付けると共に、スクリー
ンランプ28の長手方向他側を上方に移動して他方の側
板34を一対のローラ14,14を前部縦板10に回転
自在に支承する軸受けブッシュ14aの下面に押しつけ
てボルト43を締付け、スクリーンランプ28を一対の
ローラ14,14を基準として取付ける。なお、支持プ
レート39をバネ等で上方に移動付勢しても良い。As shown in FIGS. 1 to 4, the screen lamp 28 has a lamp housing 3 containing a lamp.
0 is provided with a screen 31 on the upper portion thereof, a lamp body 33 is provided with a cover 32 on the upper portion of the lamp housing 30, and substantially T-shaped side plates 34, 34 are attached to both longitudinal end faces of the lamp body 33. The lamp housing 3 of the main body portion 35 is provided with a resin main body portion 35.
The mounting plate 36 made of metal is attached to the side surface of 0 by thermal crimping, the supporting pin 37 is provided at one end in the longitudinal direction of the mounting plate 36, and the mounting piece 38 is integrally formed at the other end. The left and right side plates 34, 34 are formed to form the front and rear vertical plates 1.
A pair of rollers 14 and 14 which are horizontally extended across 0 and 11 are attached as a reference. That is, the bolt 41 is screwed onto the rear vertical plate 11 through the notch groove 40 in the vertical direction of the support plate 39 to attach the support plate 39 to the inner surface of the rear vertical plate 11, and to support the upper bent piece 39a of the support plate 39. The pin 37 is placed, and the bolt 43 is screwed into the screw hole 44 of the mounting piece 38 from the vertically elongated hole 42 of the front vertical plate 10 to temporarily hold the screen lamp 28, and the support plate 3
9 to move one side plate 34 to the pair of rollers 14
Bushing 14 for rotatably supporting the rear vertical plate 11
A bearing bush 14a for pressing the bolt 41 against a and tightening the bolt 41 and moving the other side in the longitudinal direction of the screen lamp 28 upward to rotatably support the other side plate 34 on the pair of rollers 14 and 14 on the front vertical plate 10. , The bolt 43 is tightened, and the screen lamp 28 is attached with the pair of rollers 14, 14 as a reference. The support plate 39 may be biased upward by a spring or the like.
【0009】このようであるから、ベルト状感光体15
は一対のローラ14,14の上面に接しながら回動し、
スクリーンランプ28はその一対のローラ14,14を
支承する回転ブッシュ14a,14aの下面に押しつけ
られて取付けられるので、スクリーンランプ28とベル
ト状感光体15の上面との隙間(キャビティ)が常に所
定の値となるばかりか、スクリーンランプ28を回転ブ
ッシュ14aの下面に押し付けるだけであるからその取
付け作業が容易となる。Because of this, the belt-shaped photoreceptor 15
Rotates while contacting the upper surfaces of the pair of rollers 14, 14,
Since the screen lamp 28 is mounted by being pressed against the lower surfaces of the rotating bushes 14a, 14a that support the pair of rollers 14, 14, the gap (cavity) between the screen lamp 28 and the upper surface of the belt-shaped photosensitive member 15 is always predetermined. In addition to the value, the screen lamp 28 is simply pressed against the lower surface of the rotating bush 14a, which facilitates the mounting work.
【0010】また、ベルト状感光体15は取付けピッチ
が狭い一対のローラ14,14の上面に接しながら回動
するので、スクリーンランプ28と対向する部分をベル
ト状感光体15が通過する際に波打ち(振動)すること
がなく、スクリーンランプ28によるベルト状感光体1
5の照射面の平面度を良好に維持でき、スクリーンラン
プ28の焦点深度を超えてしまったり、パターンが一部
分だけ抜けてしまうことがない。Further, since the belt-shaped photoconductor 15 rotates while contacting with the upper surfaces of the pair of rollers 14, 14 having a narrow mounting pitch, when the belt-shaped photoconductor 15 passes a portion facing the screen lamp 28, it is wavy. The belt-shaped photoreceptor 1 by the screen lamp 28 without vibrating.
The flatness of the irradiation surface of No. 5 can be maintained well, the depth of focus of the screen lamp 28 is not exceeded, and the pattern is not partly omitted.
【0011】以上の実施例ではスクリーンランプ28を
像露光部19と現像機20との中間に設けたが、帯電器
18と像露光部19との中間に設けても良いし、一対の
ローラ14を回転しないように取付け、その下面にスク
リーンランプ28の側板34を押しつけて取付けても良
い。In the above embodiment, the screen lamp 28 is provided between the image exposing section 19 and the developing device 20, but it may be provided between the charging device 18 and the image exposing section 19, or the pair of rollers 14 are provided. May be attached so as not to rotate, and the side plate 34 of the screen lamp 28 may be pressed against the lower surface thereof to be attached.
【0012】[0012]
【発明の効果】ベルト状感光体15はローラ14に沿っ
て回動し、スクリーンランプ28はローラ14を基準と
して取付けてあるから、ベルト状感光体15とスクリー
ンランプ28との隙間を所定の値となるようにスクリー
ンランプ28を簡単に取付けできる。 ベルト状感光体
15は取付けピッチの狭い一対のローラ14,14間に
おいてスクリーンランプ28で光照射されるから、照射
域においてベルト状感光体15が波打ち(振動)するこ
とがなく、その両者間の隙間がスクリーンランプ28の
深度を超えたり、パターンが一部分抜けたりすることが
ない。Since the belt-shaped photoconductor 15 is rotated along the roller 14 and the screen lamp 28 is mounted with the roller 14 as a reference, the gap between the belt-shaped photoconductor 15 and the screen lamp 28 is set to a predetermined value. The screen lamp 28 can be easily attached so that Since the belt-shaped photosensitive member 15 is irradiated with light by the screen lamp 28 between the pair of rollers 14 having a narrow mounting pitch, the belt-shaped photosensitive member 15 does not undulate (vibrate) in the irradiation region, and the belt-shaped photosensitive member 15 is not undulated. The gap does not exceed the depth of the screen lamp 28, and the pattern is not partially removed.
【図1】スクリーンランプ取付部の正面図である。FIG. 1 is a front view of a screen lamp mounting portion.
【図2】スクリーンランプ取付部の左側面図である。FIG. 2 is a left side view of a screen lamp mounting portion.
【図3】スクリーンランプ取付部の右側面図である。FIG. 3 is a right side view of a screen lamp mounting portion.
【図4】スクリーンランプ取付部の分解斜視図である。FIG. 4 is an exploded perspective view of a screen lamp mounting portion.
【図5】画像形成装置の正面図である。FIG. 5 is a front view of the image forming apparatus.
【図6】従来例の説明図である。FIG. 6 is an explanatory diagram of a conventional example.
10 前部縦板 11 後部縦板 12 連結横杆 13 感光体支持フレーム 14 ローラ 15 ベルト状感光体 18 帯電器 19 像露光部 20 現像機 21 転写器 28 スクリーンランプ 10 Front Vertical Plate 11 Rear Vertical Plate 12 Connection Horizontal Rod 13 Photoconductor Support Frame 14 Roller 15 Belt-Shaped Photosensitive Body 18 Charger 19 Image Exposure Section 20 Developing Machine 21 Transfer Machine 28 Screen Lamp
Claims (2)
に沿って回動自在に設け、そのベルト状感光体15の周
囲に帯電器18、像露光部19、現像機20、転写器2
1等を順次配設した画像形成装置において、 前記ベルト状感光体15の裏面側における帯電領域と現
像領域の中間位置にスクリーンランプ28を、前記ベル
ト状感光体15をガイドするローラ14を基準として取
付けたことを特徴とする画像形成装置におけるスクリー
ンランプの取付構造。1. A belt-shaped photosensitive member 15 is provided with a plurality of rollers 14.
The belt-shaped photoconductor 15 is provided with a charger 18, an image exposure unit 19, a developing unit 20, and a transfer unit 2 around the belt-shaped photoconductor 15.
In the image forming apparatus in which 1 and the like are sequentially arranged, a screen lamp 28 is provided at an intermediate position between the charging area and the developing area on the back surface side of the belt-shaped photoconductor 15, and the roller 14 that guides the belt-shaped photoconductor 15 is used as a reference. A structure for mounting a screen lamp in an image forming apparatus characterized by being mounted.
12で相互に平行に連結して感光体支持フレーム13と
し、この感光体支持フレーム13にベルト状感光体15
を複数のローラ14に沿って回動自在に設け、そのベル
ト状感光体15の周囲に帯電器18、像露光部19、現
像機20、転写器21等を順次配設して画像形成装置と
し、 前記感光体支持フレーム13におけける帯電領域と現像
領域の中間位置に一対のローラ14,14を狭い取付け
ピッチで取付け、この一対のローラ14,14を基準と
してスクリーンランプ28を取付けたことを特徴とする
画像形成装置におけるスクリーンランプ取付構造。2. The front vertical plate 10 and the rear vertical plate 11 are connected in parallel with each other by a connecting horizontal rod 12 to form a photoconductor support frame 13, and the belt-shaped photoconductor 15 is attached to the photoconductor support frame 13.
Is provided rotatably along a plurality of rollers 14, and a charging device 18, an image exposure unit 19, a developing device 20, a transfer device 21 and the like are sequentially arranged around the belt-shaped photoconductor 15 to form an image forming apparatus. The pair of rollers 14 and 14 are mounted at a narrow mounting pitch at an intermediate position between the charging area and the developing area on the photoconductor support frame 13, and the screen lamp 28 is mounted with the pair of rollers 14 and 14 as a reference. A screen lamp mounting structure in a characteristic image forming apparatus.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2415142A JP2576069B2 (en) | 1990-12-27 | 1990-12-27 | Screen lamp mounting structure in image forming apparatus |
US07/775,205 US5289235A (en) | 1990-12-27 | 1991-10-11 | Image producing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2415142A JP2576069B2 (en) | 1990-12-27 | 1990-12-27 | Screen lamp mounting structure in image forming apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0611953A true JPH0611953A (en) | 1994-01-21 |
JP2576069B2 JP2576069B2 (en) | 1997-01-29 |
Family
ID=18523544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2415142A Expired - Lifetime JP2576069B2 (en) | 1990-12-27 | 1990-12-27 | Screen lamp mounting structure in image forming apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2576069B2 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61196249U (en) * | 1985-05-10 | 1986-12-06 | ||
JPS6299069U (en) * | 1985-12-10 | 1987-06-24 | ||
JPH02141774A (en) * | 1988-11-22 | 1990-05-31 | Sanyo Electric Co Ltd | Image forming device |
-
1990
- 1990-12-27 JP JP2415142A patent/JP2576069B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61196249U (en) * | 1985-05-10 | 1986-12-06 | ||
JPS6299069U (en) * | 1985-12-10 | 1987-06-24 | ||
JPH02141774A (en) * | 1988-11-22 | 1990-05-31 | Sanyo Electric Co Ltd | Image forming device |
Also Published As
Publication number | Publication date |
---|---|
JP2576069B2 (en) | 1997-01-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH046030Y2 (en) | ||
US5485190A (en) | Printhead writer assembly engageable with a web image member | |
JPH09179403A (en) | Developing device | |
JPH0611953A (en) | Structure for installing screen lamp in image forming device | |
JPS597387A (en) | Electrophotographic copying device | |
JP3467074B2 (en) | Transfer device in image forming apparatus | |
EP0625730B1 (en) | Method for forming two superimposed toner images | |
JPH0211157B2 (en) | ||
JP3150969B2 (en) | Developing roller spacing device | |
JPH11184353A (en) | Process cartridge and electrophotographic image forming device | |
JPS6347870Y2 (en) | ||
JP2003066797A (en) | Image forming apparatus and process cartridge | |
JP2817413B2 (en) | Belt-shaped photoreceptor mounting device | |
JP3294674B2 (en) | Support mechanism for LED write head | |
JP3280112B2 (en) | Cleaning equipment | |
JP3012089B2 (en) | Image forming device | |
KR920008876Y1 (en) | Space keeping device of drum and sleeve of developing device such as electrophotographic copier | |
JPH0475506B2 (en) | ||
JPS61240274A (en) | Image forming device | |
JPH0353228Y2 (en) | ||
JP2008268248A (en) | Electrifier unit and image forming apparatus | |
JPH0719752U (en) | Electrophotographic photosensitive drum unit | |
KR920005086Y1 (en) | Fixing apparatus for copying machine | |
JPS61240268A (en) | Image forming device | |
JPH10133549A (en) | Process cartridge and electrophotographic image forming device |