JPH0267364U - - Google Patents
Info
- Publication number
- JPH0267364U JPH0267364U JP14647088U JP14647088U JPH0267364U JP H0267364 U JPH0267364 U JP H0267364U JP 14647088 U JP14647088 U JP 14647088U JP 14647088 U JP14647088 U JP 14647088U JP H0267364 U JPH0267364 U JP H0267364U
- Authority
- JP
- Japan
- Prior art keywords
- developing roller
- roller
- developing
- developing device
- view
- 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
- 230000002093 peripheral effect Effects 0.000 claims 2
- 108091008695 photoreceptors Proteins 0.000 claims 1
- 230000002265 prevention Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Description
第１図は本考案の一実施例である現像装置１を
レーザプリンタ２に装着した場合の縦断面図、第
２図は現像装置１および感光体ドラム３まわりの
構成を示す図、第３図は現像装置１の一部断面を
示す斜視図、第４図は現像装置本体４１の一方側
から見た側面図、第５図は第４図の分解斜視図、
第６図は現像装置本体４１の他方側から見た側面
図、第７図は第６図の分解斜視図、第８図は現像
装置１に取付けられる現像ローラ１９の断面図、
第９図は現像ローラ１９と感光体ドラム３の配設
関係を示した図、第１０図は現像装置１の蓋４２
の底面４２ｂ側から見た斜視図、第１１図は蓋４
２の下レジストローラ３２が取付けられた側から
見た正面図、第１２図は下レジストローラ３２が
取付けられた蓋４２の一部を示す斜視図、第１３
図は現像装置１の蓋４２、カバー体３８、上レジ
ストローラ３１および下レジストローラ３２の分
解斜視図、第１４図は本考案の他の実施例である
現像装置１の現像ローラ１９への電圧を印加する
構成を説明するための図である。
１……現像装置、２……レーザプリンタ、３…
…感光体ドラム、１８……主コロナ帯電器、１９
……現像ローラ、２３……コロナ帯電器、３１…
…上レジストローラ、３２……下レジストローラ
、３８……カバー体、３９……突起、４１……現
像装置本体、４２……蓋、４３ａ，４３ｂ……支
持部材、４４ａ，４４ｂ，９４……ねじりばね、
４７……穂切部材、４８ａ，４８ｂ……板ばね、
４９……シート体、５０，５１……摺動片、５２
ａ，５２ｂ……支持筒、５９ａ，５９ｂ……支持
ローラ、６０ａ，６０ｂ……ばね受けローラ、６
３……スリーブ、６４……永久磁石片、７２……
マグネツトローラ、Ｄ１……スリーブ６３の直径
、Ｄ２……支持ローラ５９ａ，５９ｂの直径、ｄ
１……マグネツトローラ７２の軸６５の直径、ｄ
２……端部材６６，６７の軸受６６ｂ，７３の内
径、Ｑ……支持部材４３ａ，４３ｂの回転軸線、
△……感光体ドラム３と現像ローラ１９との間隔
。
FIG. 1 is a longitudinal sectional view of a developing device 1 according to an embodiment of the present invention installed in a laser printer 2, FIG. 2 is a diagram showing the configuration around the developing device 1 and the photosensitive drum 3, and FIG. is a perspective view showing a partial cross section of the developing device 1, FIG. 4 is a side view of the developing device main body 41 seen from one side, FIG. 5 is an exploded perspective view of FIG. 4,
6 is a side view of the developing device main body 41 seen from the other side, FIG. 7 is an exploded perspective view of FIG. 6, and FIG. 8 is a sectional view of the developing roller 19 attached to the developing device 1.
9 shows the arrangement relationship between the developing roller 19 and the photosensitive drum 3, and FIG. 10 shows the lid 42 of the developing device 1.
FIG. 11 is a perspective view of the lid 4 as seen from the bottom surface 42b side.
12 is a perspective view showing a part of the lid 42 to which the lower registration roller 32 is attached; FIG.
The figure is an exploded perspective view of the lid 42, cover body 38, upper registration roller 31, and lower registration roller 32 of the developing device 1, and FIG. 14 shows the voltage applied to the developing roller 19 of the developing device 1 which is another embodiment of the present invention. FIG. 2 is a diagram for explaining a configuration for applying . 1...Developing device, 2...Laser printer, 3...
...Photosensitive drum, 18...Main corona charger, 19
...Developing roller, 23...Corona charger, 31...
. . . Upper registration roller, 32 . . . Lower registration roller, 38 . torsion spring,
47... Ear cutting member, 48a, 48b... Leaf spring,
49... Sheet body, 50, 51... Sliding piece, 52
a, 52b...Support tube, 59a, 59b...Support roller, 60a, 60b...Spring receiving roller, 6
3... Sleeve, 64... Permanent magnet piece, 72...
Magnet roller, D1...Diameter of sleeve 63, D2...Diameter of support rollers 59a, 59b, d
1... Diameter of the shaft 65 of the magnet roller 72, d
2... Inner diameter of bearings 66b, 73 of end members 66, 67, Q... Rotation axis of support members 43a, 43b,
Δ... Distance between the photosensitive drum 3 and the developing roller 19.
Claims (1)
いて現像剤を付着して顕像化する現像装置におい
て、 現像ローラをその周方向の一部分が外方に望む
態様に被覆するとともにその内部に現像剤が貯留
されるケーシングに対し、該ケーシングの現像ロ
ーラを外囲する周縁部の現像ローラ上方側周縁部
に現像ローラに向けて垂下する可撓性材料から成
る飛散防止部材を設け、 該ケーシング上面には記録用紙の搬送方向と交
差する回転軸線を有する第１レジストローラが設
けられ、機体側に設けられた第２レジストローラ
と圧接されるようにしたことを特徴とする現像装
置。[Scope of Claim for Utility Model Registration] In a developing device that uses a developing roller to apply a developer to a photoreceptor on which an electrostatic latent image is formed and visualize it, the developing roller is provided with a portion of the developing roller facing outward in the circumferential direction. A flexible material that is coated in a desired manner and hangs down toward the developing roller at the upper peripheral edge of the developing roller at the peripheral edge surrounding the developing roller of the casing and in which the developer is stored. A scattering prevention member is provided, and a first registration roller having a rotation axis intersecting the conveying direction of the recording paper is provided on the upper surface of the casing, and is in pressure contact with a second registration roller provided on the machine body side. A developing device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14647088U JPH0267364U (en) | 1988-11-08 | 1988-11-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14647088U JPH0267364U (en) | 1988-11-08 | 1988-11-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0267364U true JPH0267364U (en) | 1990-05-22 |
Family
ID=31415990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14647088U Pending JPH0267364U (en) | 1988-11-08 | 1988-11-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0267364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6690903B2 (en) | 1999-02-26 | 2004-02-10 | Brother Kogyo Kabushiki Kaisha | Photosensitive member cartridge |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58156972A (en) * | 1982-03-12 | 1983-09-19 | Ricoh Co Ltd | Dry developing device |
-
1988
- 1988-11-08 JP JP14647088U patent/JPH0267364U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58156972A (en) * | 1982-03-12 | 1983-09-19 | Ricoh Co Ltd | Dry developing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6690903B2 (en) | 1999-02-26 | 2004-02-10 | Brother Kogyo Kabushiki Kaisha | Photosensitive member cartridge |
| US6873810B2 (en) | 1999-02-26 | 2005-03-29 | Brother Kogyo Kabushiki Kaisha | Photosensitive member cartridge |
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