Abstract:
An in-liquid turn bar disposed in a developing tank is set to discharge developer from plural slit-shaped discharge openings of a first cylindrical member such that a discharge rate of the developer per 1 m of the photosensitive material turning member is from 50 to 200 l/min (litter/minute). Regulating plates protruding from a surface of the first cylindrical member are provided at both transverse ends of the first cylindrical member. The amount of the developer discharged from both transverse ends of a photosensitive web is controlled by the regulating plates, thereby adjusting a gap between the first cylindrical member and the photosensitive web. Accordingly, the gap between the photosensitive web and the in-liquid turn bar is substantially uniform in a transverse direction, and thus the photosensitive web is turned without contact with the in-liquid turn bar.
Abstract translation:设置在显影槽中的液体内转向杆设置成从第一圆柱形构件的多个狭缝形排出口排出显影剂,使得每1μm感光材料转动构件的显影剂的排出速率为50至200 l / min(litter / minute)。 在第一圆柱形构件的两个横向端部处设置从第一圆柱形构件的表面突出的调节板。 由感光幅材的两个横向端部排出的显影剂的量由调节板控制,从而调节第一圆柱形构件和感光幅材之间的间隙。 因此,感光纤维网和液体内转向棒之间的间隙在横向方向上基本上是均匀的,因此感光纤维网转动而不与液体内转向棒接触。
Abstract:
An apparatus for processing photographic materials has at least one photographic processing station enclosed in a housing. The housing and the processing station are each independently mounted through their own oscillation-damping connections to a common support base, so that any connections between the housing and the processing station run exclusively through the common support base.
Abstract:
Optical scanning of a moving sheet of image-bearing material is carried out in a stand-alone apparatus. No drive is provided for the sheet in the scanning apparatus, and the sheet accelerates therethrough under its own momentum and under its own weight. Transmittance scans from an optical sensor are obtained at a uniform frequency, and are analysed to determine the final speed of the sheet. Computation then allows the data to be corrected such that the detected transmittance can be related to the actual area of the sheet under acceleration. The transmittance of the sheet is then combined with its measured area to determine the amount of image present on the sheet. The invention finds application in photoprocessing apparatus, and a signal dependent on the amount of image present on the sheet and its area is sent back to the photoprocessor to control the amount of replenishment chemicals added to the processing tanks.
Abstract:
A digital photofinishing station is capable of being loaded with one or more distinct films in need of photofinishing. The digital photofinishing station has the capability to identify the film and apply a specific correction algorithm based on the identified film. More specifically, the digital photofinishing station is capable of handling films of different density forming properties, process these films using a common developing process, and apply a proper correction algorithm based on the type of film. Further, chemical constituents of the developer solution in the development process can be monitored, and based on known deviations in development caused by specific deviations in the developer solution, a proper correction algorithm is applied. In a further feature of the present invention, film can be developed and scanned at the digital photofinishing station. When the proper correction algorithm for either the film type or the developing solution deviations is not available locally, a remote server can be accessed.
Abstract:
An anti-skiving device used for beveling an edge of photographic film so that when the film is processed the emulsion or anti-halation backing on the base of the photographic film will not flake or skive. The device eliminates flaked or skived material from the edge of the film from being processed on the film itself, which heretofore caused an unsightly appearance on the processed film.
Abstract:
A strip consisting of a row of photographic prints and a marginal portion which extends along one side of the row of prints is transported lengthwise past a photoelectric scanning device which produces signals in response to detection of successive indicia encoded on the marginal portion at predetermined distances from successive boundaries between neighboring prints. The signals are used to arrest the strip at intervals, always in such position that a boundary between a pair of neighboring prints is located in the range of a movable knife which separates the prints from each other. A perforating or cutting unit is mounted ahead of the scanning device or between the movable knife and the scanning device to perforate or completely separate the marginal portion from the row of prints. If the marginal portion is to be completely separated from the row of prints ahead of the scanning device, the separated sections of the marginal portion are guided toward and past the scanning device in unchanged spatial relationship relative to the row of prints. The indicia are exposed on the marginal portion during the making of prints, and the strip is thereupon developed prior to scanning, severing and separation of the marginal portion.
Abstract:
A copying machine which includes a developer trough for containing developer liquid through which copy paper is passed and a cover for sealing the trough to prevent evaporation loss or spillage of the developer liquid. The cover is movably mounted between open and closed positions and is operatively associated with an electrical switch and a trip mechanism whereby a cycle of operation of the copying machine is automatically initiated in response to raising the cover to its open position, and the cover is closed and the copying machine stopped automatically at the end of the cycle of operation. In another form, the copying machine has spring loaded feet operatively connected to the cover to lower the cover and seal the developer trough when the copying machine is lifted off of a supporting surface to prevent spillage during transportation.
Abstract:
A method of developing photographic emulsion layers whereby fresh developer is supplied during development to different sized image areas in proportion to their size. Conventional development releases negatively charged waste particles that congregate adjacent the image areas. A positively charged electrode in the developer tank attracts the particles, permitting fresh developer to reach the image areas to continue development. Optionally, a negatively charged electrode electrolyzes the developer, releasing hydrogen bubbles which scrub the face of the developing layer; dislodging the waste particles.