Scanning exposure apparatus having cutting structure for severin

Details Scanning exposure apparatus having cutting structure for severin Scanning exposure apparatus having cutting structure for severin

1992-03-27

1993-12-28

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355 28, G03G 2100

Patent

active

052744272

ABSTRACT:
The slit exposure process camera keeps a photosensitive material flat in the exposure position, and further makes a useless area on the material smaller. The apparatus includes: a pair of feeding rollers 25 disposed upstream from the exposure position for conveying a photosensitive material PM; a transport guide 61 with a flat surface arranged downstream from the rollers 25; and a pressing plate 70 with sufficient elasticity and abrasion resistance for pressing the photosensitive material PM downward. The photosensitive material PM thus pressed runs in contact with a surface of the transport guide 61 and is thereby kept sufficiently flat. Since the process camera does not include another pair of rollers downstream from the exposure position, image reproduction is not disturbed by nipping of the photosensitive material with the downstream rollers, and an unusable area on the end of the photosensitive material is made relatively small.

REFERENCES:
patent: 2595325 (1952-05-01), Baumgartner
patent: 3599584 (1971-08-01), Fowler
patent: 3848554 (1974-11-01), Kropf
patent: 4467739 (1984-08-01), Hager et al.
patent: 4488803 (1984-12-01), Nishihama et al.
patent: 4607836 (1986-08-01), Miyasaka
patent: 4754674 (1988-07-01), Perlman
patent: 4914473 (1990-04-01), Matsukawa et al.
patent: 5052317 (1991-10-01), Schips
Patent Abstracts of Japan; vol. 13, No. 66(P-828) Feb. 15, 1989 & JP-A-63 254 436 (Fuji Film Co., Ltd.) Oct. 21, 1988.

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