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Photo printing and developing device

A developing device and photo technology, applied in developing and printing devices, printing devices, film packaging, etc., can solve the problems of difficult manipulation, heavy weight and complex structure of photo paper cassettes

Inactive Publication Date: 2004-07-28
NK WORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electric drive is a large number of parts and complex, making the entire paper cassette heavy and difficult to maneuver, and quite expensive to manufacture

Method used

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  • Photo printing and developing device
  • Photo printing and developing device
  • Photo printing and developing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0028] figure 1 A photoprinting / processing machine is shown schematically. The photographic paper P in the figure has been pulled out from a photographic paper cassette 1, and the photographic paper P is fed along a photographic paper feed path on which a push roller 2 and a Cutter 3 downstream of roll 2 is advanced. The paper P is pulled out from the paper cassette 1 and fed to an exposure unit 4 by the push roller 2 . The photo paper that has been printed by the exposure unit 4 is then fed to the processing unit 5 of the photo printing / processing machine for processing.

[0029] figure 2 The paper cassette 1 is shown. The paper cassette 1 has a cassette shell 10 . A roll R of photographic paper P wound up is accommodated in the magazine case.

[0030] The cassette shell is joined together by a front shell part 11 and a rear shell part 12 by a hin...

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PUM

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Abstract

A paper magazine made up of a small number of parts and capable of rewinding paper pulled out of the case around the roll of paper in the magazine by turning the paper roll. The paper roll is supported on a roll support shaft provided in the magazine case. The roll support shaft includes a core support rod, a pair of cylindrical end members mounted on both ends of the core support rod, and a core mounted on the core support rod between the end members. The paper roll is mounted on the core. When the paper is pulled out of the paper roll, the core is rotated in one direction, so that one of two torsion coil springs tightens to bias the core in the paper rewinding direction. Thus, as soon as the paper is pulled back into the case, the core is turned in the rewinding direction by the one of the coil springs, so that the paper can be smoothly wound around the core.

Description

technical field [0001] This invention relates to a photo-processing apparatus, and more particularly to a photo-processing apparatus having a paper cassette for improved storage of rolls of photographic paper, such as photographic paper. Background technique [0002] A photoprinting / processing machine has an exposing unit for printing an image on a negative film on a photographic paper and a developing unit for developing the printed image on the paper. A cassette in which a roll of photographic paper is loaded is installed in the photoprinting / processing machine, and the photographic paper cassette is used to feed the photographic paper therein first into the exposure unit and then into the processing unit. [0003] If the paper size needs to be changed, replace the wrong-sized paper cassette with a new paper cassette containing a roll of the correct size paper. [0004] To replace the paper cassette, the paper is first cut with a cutter disposed along the paper feed path ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03C3/00B41J15/16B65D85/676B65H16/06B65H18/10B65H20/36G03B27/58G03D13/00
CPCB41J15/16B65H18/10B65H20/36G03B27/588G03D15/00
Inventor 冈照人
Owner NK WORKS CO LTD