EP0095711A2 - Nachdosiereinrichtung in einer mit einem Fotosatz in Verbindung stehenden fotografischen Entwicklungsmaschine - Google Patents

Nachdosiereinrichtung in einer mit einem Fotosatz in Verbindung stehenden fotografischen Entwicklungsmaschine Download PDF

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Publication number
EP0095711A2
EP0095711A2 EP83105139A EP83105139A EP0095711A2 EP 0095711 A2 EP0095711 A2 EP 0095711A2 EP 83105139 A EP83105139 A EP 83105139A EP 83105139 A EP83105139 A EP 83105139A EP 0095711 A2 EP0095711 A2 EP 0095711A2
Authority
EP
European Patent Office
Prior art keywords
computer
measuring device
photosetting
control device
nachdosiereinrichtung
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.)
Withdrawn
Application number
EP83105139A
Other languages
German (de)
English (en)
French (fr)
Inventor
Gerald Dr. Wagner
Dieter Wauer
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of EP0095711A2 publication Critical patent/EP0095711A2/de
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D3/00—Liquid processing apparatus involving immersion; Washing apparatus involving immersion
    • G03D3/02—Details of liquid circulation
    • G03D3/06—Liquid supply; Liquid circulation outside tanks
    • G03D3/065—Liquid supply; Liquid circulation outside tanks replenishment or recovery apparatus

Definitions

  • the invention relates to a metering device in a photographic processing machine connected to a photosetting device, with at least one metering pump and a control device actuating the latter, in which the metering amount is determined as a function of the length and width of the processed substrate material.
  • the object of the invention is therefore to further develop a replenishment device of the type mentioned at the outset in such a way that exact, consumption-proportional and process-typical replenishment is possible with simple means.
  • measuring devices in the developing machine can be dispensed with, which measure the density of the developed substrate material, as described, for example, in US Pat. No. 3,787,689.
  • the film is then passed between a light source and a series of photocells, which measure the film density.
  • This known system works relatively imprecisely, since only those strips are measured on which there is a photocell. If the entire width is to be scanned, many photocells are required, the delimitation of the individual areas then being problematic.
  • the control of the replenishment in the developing machine takes place directly from the photosetting device.
  • Fig. 1 denotes a photosetting device and 2 denotes a developing machine.
  • the adapter 3 has the task of compensating for the different speeds of the photosetting device and the developing machine, that is to say to separate a layer carrier material that has been input into the developing machine in the absence of subsequent conveying from the setting device at a prescribed point.
  • the developing machine 2 can have, for example, a developer bath 2a, a fixing bath 2b, a washing bath 2c and a dryer 2d.
  • This structure of the development machine is purely exemplary. Another combination of baths with a corresponding number of metering pumps can also be provided.
  • the photosetting device 1 there is a CRT tube 10, which is connected to a set controller 11.
  • a laser recorder could also be used instead of a CRT tube.
  • the tube 10 is directed onto a stage 12 with a cutout 12a for the layer carrier material 13.
  • the layer support material is drawn from a cassette 14 which is connected to a rewind drive 15.
  • the transport of the layer carrier material is effected by pairs of rollers 16 and 17, the latter being arranged after the stage cutout 12a, viewed in the direction of transport, and being connected to a drive 18.
  • the cassette 14 is also connected to a code scanner 19, the output of which leads to a computer 20.
  • the set controller 11 is also connected to a measuring device 21, which likewise leads to the computer 20 and which, according to the invention, determines the radiation intensity of the light writing unit or transmits it to the computer 20.
  • the output of the computer 20 is connected to switching units 7 and 9 of the metering pumps 6 and 8. In addition, lines lead from the drives 15 and 18 to the computer 20.
  • the measuring device 21 receives the light / dark current, which controls the brightness of the CRT tube 10. This creates a measure of the density on the substrate which is essentially proportional to the reduction in concentration. This measure is added in the computer 20 to the first dosing value as the second dosing value, and the computer 20 accordingly controls the switching units 7 and 9 of the dosing pumps 6 and 8, respectively, with subsequent dosing corresponding to the reduction in concentration due to area and blackening.
  • another measuring device could also be used which, for example, records the brightness emerging from the tube 10 by means of a photocell and reports it to the computer 20.
  • the measuring device is formed by an integrator 21 ', in which the control current from the set control 11 for the picture tube 10 is integrated in time, the size of the periodically emitted signal being a measure of the average exposure energy emitted to the substrate material, and thus the known material characteristic represents the gray density of the exposure.
  • the outgoing signal is sent to the computer 20 via an analog / digital converter, in which the respective metering pulse is generated together with the area calculation according to the example according to FIG. 1.
  • a drive 15 is provided for the cassette 14, with which the layer support material can also be withdrawn again.
  • a backward movement would interfere with the calculation of the area.
  • an up / down counter 23 is provided in the example in FIG. 2, in which the steps in the transport direction are counted positively and those against the transport direction are counted negatively.
  • the corresponding start / stop signals are given to the up / down counter 23 by a start / stop unit 24 which triggers the drives 15 and 18.
  • a line also leads from the start / stop unit 24 to the integrator 21 ', which is switched on and off via this when the light beam from the tube 10 is working or has stopped working.
  • the start / stop unit 24 is expediently coupled to the set controller 11, from which the commands for a reverse transport originate.
  • the analog signal of the average image brightness is digitized in the analog / digital converter 22 and fed to the computer in this form.
  • the regeneration values calculated in the computer are stored in the switching unit ten 7, 9 and 9 'amplified and given in the form of time pulses to the pumps 6, 8 and 8', which result in different regeneration quantities due to different running times with a fixed delivery rate.
  • solenoid valves could also be used, to which the post-metering liquids are under a certain pressure and which can be opened for the calculated time.
  • the combination of the easy-to-record data emanating from the photosetting device with the previously determined, constant process data permits complete regeneration control of the developing machine without any further measuring device within the developing machine.
  • the computer can give a defined regeneration pulse when the amount of material falls below a certain amount or after a certain set-free time is exceeded in order to compensate for the oxidation in the activator.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
EP83105139A 1982-05-28 1983-05-25 Nachdosiereinrichtung in einer mit einem Fotosatz in Verbindung stehenden fotografischen Entwicklungsmaschine Withdrawn EP0095711A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823220169 DE3220169A1 (de) 1982-05-28 1982-05-28 Nachdosiereinrichtung in einer mit einem fotosatz in verbindung stehenden fotografischen entwicklungsmaschine
DE3220169 1982-05-28

Publications (1)

Publication Number Publication Date
EP0095711A2 true EP0095711A2 (de) 1983-12-07

Family

ID=6164769

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83105139A Withdrawn EP0095711A2 (de) 1982-05-28 1983-05-25 Nachdosiereinrichtung in einer mit einem Fotosatz in Verbindung stehenden fotografischen Entwicklungsmaschine

Country Status (5)

Country Link
US (1) US4486082A (enrdf_load_stackoverflow)
EP (1) EP0095711A2 (enrdf_load_stackoverflow)
JP (1) JPS58215650A (enrdf_load_stackoverflow)
DE (1) DE3220169A1 (enrdf_load_stackoverflow)
DK (1) DK240483A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3612692A1 (de) * 1985-06-05 1986-12-11 Mitsubishi Denki K.K., Tokio/Tokyo Negativfotolack-entwicklungsgeraet
EP0241858A3 (en) * 1986-04-09 1989-04-26 Fuji Photo Film Co., Ltd. Method of supplying replenishing solution in automatic developing machine
EP0418757A3 (en) * 1989-09-20 1991-12-11 Fuji Photo Film Co., Ltd. Light-sensitive material processing apparatus
EP0500278A3 (en) * 1991-02-19 1993-04-21 Minnesota Mining And Manufacturing Company Developer solution replenishment control system for a digital imaging system
EP0257790B1 (en) * 1986-07-31 1994-05-18 Konica Corporation Image forming apparatus capable of processing various kinds of photosensitive material

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4577950A (en) * 1984-07-13 1986-03-25 Mackson Richard G Computer controlled replenishing system for automatic film processor
US4757334A (en) * 1986-12-09 1988-07-12 Ivan Volent System for density correction of medical imaging film hard copy
US5518845A (en) * 1989-02-01 1996-05-21 Eastman Kodak Company Method and apparatus for controlling the rate of replenishment of chemical solutions in photographic processing
US4999660A (en) * 1990-03-16 1991-03-12 Eastman Kodak Company Dual chamber pump assembly and a replenishment system for a film processor incorporating such a pump assembly
US5739896A (en) * 1995-02-03 1998-04-14 Eastman Kodak Company Method and apparatus for digitally printing and developing images onto photosensitive material
GB9509040D0 (en) * 1995-05-04 1995-06-28 Kodak Ltd Photographic processing
GB9509039D0 (en) * 1995-05-04 1995-06-28 Kodak Ltd Photographic processing
EP0872764A1 (en) * 1997-04-15 1998-10-21 Agfa-Gevaert N.V. Method for processing exposed silver-based photographic material

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1497487A1 (de) * 1965-10-15 1969-07-10 Fuji Photo Film Co Ltd Verfahren und Vorrichtung zur Regelung der Qualitaet von photographischen Bildern
GB1198073A (en) * 1966-08-26 1970-07-08 Agfa Gevaert Nv Photographic Processing Device
US3559555A (en) * 1968-06-04 1971-02-02 John N Street Image monitoring and control system
US3699869A (en) * 1970-08-06 1972-10-24 Eastman Kodak Co Film processing apparatus for processing films of different type
US3787689A (en) * 1972-05-16 1974-01-22 Hope H X Ray Products Inc Exposure scanner and replenisher control
US4260234A (en) * 1979-06-25 1981-04-07 Autologic, Inc. Media transporter for phototypesetter-processor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3612692A1 (de) * 1985-06-05 1986-12-11 Mitsubishi Denki K.K., Tokio/Tokyo Negativfotolack-entwicklungsgeraet
US4688918A (en) * 1985-06-05 1987-08-25 Mitsubishi Denki Kabushiki Kaisha Negative type photoresist developing apparatus
EP0241858A3 (en) * 1986-04-09 1989-04-26 Fuji Photo Film Co., Ltd. Method of supplying replenishing solution in automatic developing machine
EP0257790B1 (en) * 1986-07-31 1994-05-18 Konica Corporation Image forming apparatus capable of processing various kinds of photosensitive material
EP0418757A3 (en) * 1989-09-20 1991-12-11 Fuji Photo Film Co., Ltd. Light-sensitive material processing apparatus
EP0500278A3 (en) * 1991-02-19 1993-04-21 Minnesota Mining And Manufacturing Company Developer solution replenishment control system for a digital imaging system
AU653198B2 (en) * 1991-02-19 1994-09-22 Minnesota Mining And Manufacturing Company Developer solution replenishment control system for a digital imaging system

Also Published As

Publication number Publication date
US4486082A (en) 1984-12-04
DK240483D0 (da) 1983-05-27
DK240483A (da) 1983-11-29
DE3220169A1 (de) 1983-12-01
DE3220169C2 (enrdf_load_stackoverflow) 1990-01-11
JPS58215650A (ja) 1983-12-15

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19840920

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Inventor name: WAUER, DIETER

Inventor name: WAGNER, GERALD, DR.