JPS6463941A - Exposing and copying device - Google Patents
Exposing and copying deviceInfo
- Publication number
- JPS6463941A JPS6463941A JP22097887A JP22097887A JPS6463941A JP S6463941 A JPS6463941 A JP S6463941A JP 22097887 A JP22097887 A JP 22097887A JP 22097887 A JP22097887 A JP 22097887A JP S6463941 A JPS6463941 A JP S6463941A
- Authority
- JP
- Japan
- Prior art keywords
- original
- images
- contact
- projecting lens
- copied
- 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
Abstract
PURPOSE:To speed up copying contact originals and to reduce the costs of an optical system by adjusting the diameter of a diaphragm for a projecting lens according as originals for forming and exposing images or those for contact exposure are loaded. CONSTITUTION:When a transparent original B of formed images is copied, light emitted from a light source 6 selectively transmits said original B, and its images are converged and formed on a photosensitive recording medium 13 through a projecting lens 8, and latent images of characters and pictures on said original B are formed on said medium 13. At that time, the projecting lens 8 is narrowed down to a prescribed value because image forming performance is prioritized. On the other hand, when a contact original A is copied, the diaphragm of the projecting lens 8 is opened, which is taken for a light condensing lens. After the contact original A is overlapped with the photosensitive recording medium 13, light is projected from the side of the original to perform exposure. Thus the quality of copied images can be maintained, and moreover the exposing time when closely adhering exposure is made can be shortened.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22097887A JPS6463941A (en) | 1987-09-03 | 1987-09-03 | Exposing and copying device |
US07/239,269 US4963918A (en) | 1987-09-03 | 1988-09-01 | Image forming apparatus for reproducing images on photosensitive medium by exposing the medium to radiation through image-bearing original |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22097887A JPS6463941A (en) | 1987-09-03 | 1987-09-03 | Exposing and copying device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6463941A true JPS6463941A (en) | 1989-03-09 |
Family
ID=16759550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22097887A Pending JPS6463941A (en) | 1987-09-03 | 1987-09-03 | Exposing and copying device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6463941A (en) |
-
1987
- 1987-09-03 JP JP22097887A patent/JPS6463941A/en active Pending
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