JPH01171463U - - Google Patents
Info
- Publication number
- JPH01171463U JPH01171463U JP6336388U JP6336388U JPH01171463U JP H01171463 U JPH01171463 U JP H01171463U JP 6336388 U JP6336388 U JP 6336388U JP 6336388 U JP6336388 U JP 6336388U JP H01171463 U JPH01171463 U JP H01171463U
- Authority
- JP
- Japan
- Prior art keywords
- electrostatic latent
- latent image
- developing
- density sensor
- light
- 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
- 230000003287 optical effect Effects 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 108091008695 photoreceptors Proteins 0.000 claims 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
Description
第１図は本考案による電子写真複写機の概略構
成を示す側断面図、第２図はシヤツター部分の構
成を示す平面図、第３図はパターン作像タイムチ
ヤート、である。
１……感光体ドラム、２……帯電器、３……露
光装置、４……現像装置、５……転写帯電器、６
……分離帯電器、７……クリーニング装置、９…
…シヤツター装置、１２……光源、１３……光学
系、１６……濃度センサー、１８……シヤツター
板、１９……バイアス付与装置、２１……イレー
サ。
FIG. 1 is a side sectional view showing a schematic structure of an electrophotographic copying machine according to the present invention, FIG. 2 is a plan view showing the structure of a shutter portion, and FIG. 3 is a pattern image forming time chart. 1... Photosensitive drum, 2... Charger, 3... Exposure device, 4... Developing device, 5... Transfer charger, 6
...Separation charger, 7...Cleaning device, 9...
... Shutter device, 12 ... Light source, 13 ... Optical system, 16 ... Density sensor, 18 ... Shutter plate, 19 ... Bias applying device, 21 ... Eraser.
Claims (1)
静電潜像を露光光源よりの光により露光せめるよ
う構成した光路内に、前記光の一部を遮蔽するシ
ヤツター装置を設けるとともに、その遮蔽により
形成された静電潜像を現像して得られた画像濃度
を検出する濃度センサーを設け、該濃度センサー
により現像装置内のトナー量や現像装置内のバイ
アスを制御するよう構成したことを特徴とする電
子写真複写装置。 A charger for forming an electrostatic latent image on the surface of a photoreceptor, and a shutter device for blocking part of the light are provided in an optical path configured to expose the electrostatic latent image to light from an exposure light source. A density sensor is provided to detect the image density obtained by developing the electrostatic latent image formed by shielding, and the density sensor is configured to control the amount of toner in the developing device and the bias in the developing device. Characteristic electrophotographic copying device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6336388U JPH01171463U (en) | 1988-05-16 | 1988-05-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6336388U JPH01171463U (en) | 1988-05-16 | 1988-05-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01171463U true JPH01171463U (en) | 1989-12-05 |
Family
ID=31288869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6336388U Pending JPH01171463U (en) | 1988-05-16 | 1988-05-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01171463U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62254164A (en) * | 1986-04-28 | 1987-11-05 | Minolta Camera Co Ltd | Copying device |
-
1988
- 1988-05-16 JP JP6336388U patent/JPH01171463U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62254164A (en) * | 1986-04-28 | 1987-11-05 | Minolta Camera Co Ltd | Copying device |
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