JPH0159247U - - Google Patents
Info
- Publication number
- JPH0159247U JPH0159247U JP15326287U JP15326287U JPH0159247U JP H0159247 U JPH0159247 U JP H0159247U JP 15326287 U JP15326287 U JP 15326287U JP 15326287 U JP15326287 U JP 15326287U JP H0159247 U JPH0159247 U JP H0159247U
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical axis
- receiving element
- lens
- copying machine
- 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
- 230000003287 optical effect Effects 0.000 claims description 4
- 108091008695 photoreceptors Proteins 0.000 claims description 2
Landscapes
- Exposure Or Original Feeding In Electrophotography (AREA)
Description
第１図は本考案の要部を示す平面図、第２図は
複写機の光学系を示す説明図、第３図、第４図は
異なる従来例を示す平面図である。
３は複写用レンズ、４は感光体、５は原稿濃度
検出用センサ、７はレンズ移動台。
FIG. 1 is a plan view showing essential parts of the present invention, FIG. 2 is an explanatory view showing an optical system of a copying machine, and FIGS. 3 and 4 are plan views showing different conventional examples. 3 is a copying lens, 4 is a photoreceptor, 5 is a sensor for detecting document density, and 7 is a lens moving table.
Claims (1)
び光軸と直角方向に移動することにより変倍作動
するようにした複写用レンズ３を介して感光体４
へ照射するようにした複写機で、かつ上記反射光
を検出するための受光素子を設け、この受光素子
の受ける受光量により露光用ランプ電圧、または
現像バイアスをコントロールするようにした複写
機の自動濃度調整装置において、上記受光素子を
変倍時に複写機用レンズ３を光軸方向に移動させ
るためのレンズ移動台７上に取付けたことを特徴
とする複写機の自動濃度調整装置。 A photoreceptor 4 is transmitted through a copying lens 3 that performs magnification change by scanning an original and moving the reflected light in the direction of the optical axis and in the direction perpendicular to the optical axis.
An automatic copying machine is equipped with a light-receiving element for detecting the reflected light, and the exposure lamp voltage or developing bias is controlled according to the amount of light received by the light-receiving element. An automatic density adjustment device for a copying machine, characterized in that the light receiving element is mounted on a lens moving table 7 for moving a copying machine lens 3 in the optical axis direction during zooming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987153262U JP2501620Y2 (en) | 1987-10-08 | 1987-10-08 | Automatic density adjustment device for copiers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987153262U JP2501620Y2 (en) | 1987-10-08 | 1987-10-08 | Automatic density adjustment device for copiers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0159247U true JPH0159247U (en) | 1989-04-13 |
| JP2501620Y2 JP2501620Y2 (en) | 1996-06-19 |
Family
ID=31428942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987153262U Expired - Lifetime JP2501620Y2 (en) | 1987-10-08 | 1987-10-08 | Automatic density adjustment device for copiers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2501620Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6163864A (en) * | 1984-09-04 | 1986-04-02 | Konishiroku Photo Ind Co Ltd | Automatic picture density adjusting device |
| JPS62178230A (en) * | 1986-01-31 | 1987-08-05 | Mita Ind Co Ltd | Automatic exposure control method |
-
1987
- 1987-10-08 JP JP1987153262U patent/JP2501620Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6163864A (en) * | 1984-09-04 | 1986-04-02 | Konishiroku Photo Ind Co Ltd | Automatic picture density adjusting device |
| JPS62178230A (en) * | 1986-01-31 | 1987-08-05 | Mita Ind Co Ltd | Automatic exposure control method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2501620Y2 (en) | 1996-06-19 |
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