JPS6463941A - Exposing and copying device - Google Patents

Exposing and copying device

Info

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
Application number
JP22097887A
Other languages
Japanese (ja)
Inventor
Hideo Yoshihara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brother Industries Ltd
Original Assignee
Brother Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Brother Industries Ltd filed Critical Brother Industries Ltd
Priority to JP22097887A priority Critical patent/JPS6463941A/en
Priority to US07/239,269 priority patent/US4963918A/en
Publication of JPS6463941A publication Critical patent/JPS6463941A/en
Pending legal-status Critical Current

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.
JP22097887A 1987-09-03 1987-09-03 Exposing and copying device Pending JPS6463941A (en)

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)

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