EP0679946A1 - Bilderzeugungsverfahren - Google Patents

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Publication number
EP0679946A1
EP0679946A1 EP95105867A EP95105867A EP0679946A1 EP 0679946 A1 EP0679946 A1 EP 0679946A1 EP 95105867 A EP95105867 A EP 95105867A EP 95105867 A EP95105867 A EP 95105867A EP 0679946 A1 EP0679946 A1 EP 0679946A1
Authority
EP
European Patent Office
Prior art keywords
thermal development
photosensitive member
image
temperature
heating
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Withdrawn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
EP95105867A
Other languages
English (en)
French (fr)
Inventor
Akihiro Mouri
Kenichi Matsumoto
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.)
Canon Inc
Original Assignee
Canon Inc
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
Priority claimed from JP13690794A external-priority patent/JPH086224A/ja
Application filed by Canon Inc filed Critical Canon Inc
Publication of EP0679946A1 publication Critical patent/EP0679946A1/de
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D13/00—Processing apparatus or accessories therefor, not covered by groups G11B3/00 - G11B11/00
    • G03D13/002—Heat development apparatus, e.g. Kalvar
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D13/00—Processing apparatus or accessories therefor, not covered by groups G11B3/00 - G11B11/00
    • G03D13/007—Processing control, e.g. test strip, timing devices

Definitions

  • the present invention relates to an image forming method wherein a thermal development-type photosensitive member is exposed imagewise to light and subjected to thermal development to form an image, particularly such an image forming method wherein the imagewise exposure quantity is corrected so as to obviate a density deviation or irregularity in the resultant images.
  • the silver salt photography using a silver halide is excellent in resolution and gradation characteristic and has hitherto been widely adopted as a recording technology.
  • the process includes wet processing steps of development, termination thereof and fixing after the imagewise exposure and is therefore inferior in processibility, simplicity and safety, which have been regarded as problematic.
  • dry-process materials free from such wet treatments have also been studied and disclosed in, e.g., Japanese Patent Publication (JP-B) 43-4921 and JP-B 43-4924.
  • JP-B Japanese Patent Publication
  • These materials comprise a photosensitive silver halide in a catalytic amount and a non-photosensitive organic silver salt as an image forming material.
  • the organic silver salt has been considered to function as an image forming material in the following mechanism.
  • silver nuclei are formed from the photosensitive silver halide in a catalystic amount to provide a latent image, and (2) when the photosensitive member is heated, the organic silver salt and a reducing agent cause an oxidation-reduction reaction with the silver nuclei as the catalyst to reduce the organic silver salt into silver which forms an image.
  • thermal development-type photosensitive member has been adopted as a photosensitive material for various industries, such as image communication, medical field and outputting from computers.
  • thermal development of an imagewise exposed thermal development-type photosensitive member includes: heating of a photosensitive member by a heat-generating heater, radiation heating using infrared rays or microwave, and heat generation by current conduction through a carbonations conductor layer disposed on the back side of a photosensitive member.
  • JP-A Japanese Laid-Open Patent Application
  • JP-A 61-134761 JP-A 61-137152
  • JP-A 61-134761 JP-A 54-130025
  • JP-A 54-153426 JP-A 59-104648
  • JP-A 60-135947 JP-A 60-143338
  • JP-A 61-173230 JP-A 61-173230.
  • a thermal development-type photosensitive member results in remarkably different image densities depending on thermal development temperatures and is therefore usually temperature-controlled so as not to change the thermal development temperature by placing a temperature sensor close to the heat source.
  • a principal object of the present invention is to provide an image forming method capable of providing images free from a density irregularity or deviation.
  • an image forming method comprising exposure and heating of a thermal development-type photosensitive member, wherein said method further including the steps of: forming a test image, measuring an optical density of the test image, and correcting energy of the exposure based on the measured optical density to form an objective image.
  • Figure 1 is a sectional view of an image forming apparatus for practicing an embodiment of the image forming method according to the present invention.
  • Figure 2 is a plan view of a test image to be formed in an embodiment of the image forming method according to the present invention.
  • Figure 3 is a graph for determining a correction quantity of exposure energy in an embodiment of the image forming method according to the present invention.
  • a thermal development-type photosensitive member is exposed to light and then heated (thermally developed) to form an image corresponding to an exposure pattern.
  • a thermal development-type photosensitive member is first exposed to a uniform intensity (i.e., a prescribed energy) of light and then heated to form a test image.
  • the test image thus formed is ideally free from irregularity or deviation in optical density.
  • the test image is usually accompanied with a density deviation (i.e., a density distribution or irregularity).
  • the optical density of the test image is measured by a densitometer to detect a density deviation in the test image.
  • the exposure energy of the light source is corrected to form an objective image free from density deviation. More specifically, a part expected to provide a lower optical density based on the detected density deviation is supplied with an increased exposure energy, whereas a part expected to provide a higher optical density is supplied with a decreased exposure energy.
  • the test image may be formed by exposing a whole image region (i.e., the entirety of a region where a image is formed) and heating the whole image region or may comprise an assembly of image portions (or spots or points) where optical densities are arranged as shown in Figure 2.
  • the test image may preferably comprise a regularly arranged pattern so as to facilitate a density deviation (or distribution) in the image region.
  • the detection spots may preferably be arranged at 2 - 15 points, more preferably 3 - 10 points, in each of longitudinal and transverse directions.
  • the image forming apparatus includes a detachably mounted cassette 12 in which sheets of a thermal development-type photosensitive member 11 are stored.
  • Each sheet of thermal development-type photosensitive member comprises a photosensitive layer containing an organic silver salt, a reducing agent and a silver halide as will be described in further detail hereinafter.
  • a thermal development-type photosensitive member is exposed imagewise, silver nuclei are formed from the silver halide at the exposed parts to form a latent image.
  • the organic silver salt and the reducing agent cause an oxidation-reduction reaction therebetween to reduce the organic silver salt into silver, which forms an image.
  • the silver nuclei formed by the exposure function as a catalyst for the oxidation-reduction reaction.
  • the inside of the cassette 12 is optically masked by a shutter 13 before it is installed in the apparatus.
  • the shutter 12 is opened and a supply roller 14 is caused to descend onto the sheets of photosensitive member 11 in the cassette.
  • the apparatus is driven under the control of a controller 15.
  • the supply roller 14 is rotated to feed out the photosensitive member 11.
  • a sheet of the photosensitive member 11 taken out from the cassette 12 is guided to an imagewise exposure section along a conveyance guide 16, and conveyer rollers 17a and 17b in the exposure section also start to rotate to convey the photosensitive member to a prescribed position (imagewise exposure start position). Thereafter, the supply roller 14 and the conveyor rollers 17a and 17b are stopped.
  • the photosensitive member 11 is exposed imagewise to laser light supplied from a semiconductor laser scanner exposure apparatus 19 including a semiconductor laser (not shown) and a polygonal mirror 18.
  • the conveyor rollers 17a and 17b are caused to rotate in synchronism with the operation of the semiconductor laser scanner exposure apparatus 19 to convey the photosensitive member 11 while imagewise exposure is effected.
  • the semiconductor laser is driven by a laser driver 20 and an image signal generating apparatus 21.
  • the exposure apparatus may comprise any type capable of effecting imagewise exposure depending on given image signals, inclusive of CRT, FOT, LED, LED array, LCD and PLZT shutter array, and fluorescent lamp, instead of the above-mentioned semiconductor scanner exposure apparatus 19.
  • the photosensitive member 11 thus subjected to imagewise exposure is conveyed by the conveyor rollers 17a and 17b to a thermal development section, where thermal development is effected.
  • the thermal development section includes heating rollers 22a and 22b, conveyance guides 23a and 23b, heat-generating members 24a and 24b, cooling rollers 25a and 25b, and an insulating member 26.
  • the heating rollers 22a and 22b may comprise, e.g., silicone rubber.
  • halogen lamps are disposed as heaters.
  • the heating rollers 22a and 22b are rotated at speeds identical to those of the conveyor roller 17a and 17b to effect thermal development while conveying the photosensitive member 11.
  • the photosensitive member 11 is further guided by the conveyance guides 23a and 23b in the thermal development section to reach the cooling rollers 25a and 25b.
  • the conveyance guides 23a and 23b are provided with heating members 24a and 24b, respectively, of a heat-generating silicone rubber sheet for effecting thermal development simultaneously conveying the photosensitive member 11.
  • the thermal development of the photosensitive member 11 is terminated by cooling with the cooling rollers 25a and 25b.
  • the cooling rollers 25a and 25b are rotated at identical speeds as the heating rollers 22a and 22b to discharge the photosensitive member 11 out of the apparatus.
  • test image as shown in Figure 2 including square spots a1 - a25 is formed on a thermal development-type photosensitive member 11. Then, each of the test spots a1 - a25 is subjected to measurement of the optical density by using an optical densitometer (e.g., "NLM-STD-Tr", available from Narumi Shokai K.K.).
  • an optical densitometer e.g., "NLM-STD-Tr", available from Narumi Shokai K.K.
  • an objective image is formed in a similar manner as above for formation of a test image but the exposure energy quantity during the objective image formation is corrected based on the measured optical densities of the test spots a1- a25, e.g., through determination of temperature deviations at the test spots. More specifically, a part expected to provide a lowering in density based on the corresponding test spot is supplied with an increased exposure energy and a part expected to provide an elevation in density is supplied with a decreased exposure energy, e.g., based on deviated temperature at the parts.
  • the correction quantity of imagewise exposure energy is determined depending on the degree of deviation of the test image density from a reference optical density (objective optical density).
  • the correction quantity of imagewise exposure energy may for example be determined by using a graph as shown in Figure 3.
  • Figure 3 is a graph showing a relationship between the light energy E during imagewise exposure and the resultant optical density (O.D.), e.g., at thermal development temperatures of 114.0 o C, 114.5 o C, 115.0 o C, 115.5 o C and 116.0 o C for a thermal development time of 15 sec.
  • a relationship as shown by a graph of Figure 3 is determined according to the kind of a thermal development-type photosensitive member used. Accordingly, prior to practicing the image forming method according to the present invention, it is appropriate to prepare a graph as shown in Figure 3 corresponding to the kind of a photosensitive member used.
  • a graph as shown in Figure 3 may easily be obtained by forming images at varying exposure energies and varying thermal development temperatures for a certain period corresponding to the thermal development means used and measuring the optical densities of the resultant images.
  • the test spot a18 is thermally developed at 114.5 o C from Figure 3.
  • the above-mentioned correction operation is effected at parts of all the test spots a1 - a25, whereby, an excellent objective image free from density deviation (sometimes density lowering) can be obtained.
  • An increased number of curve as shown in the graph of Figure 3 may be obtained so as effect a more accurate correction by using an increased number of thermal development temperatures with a smaller pitch.
  • there is a practical limit in lowering the temperature pitch and it is practical to use a graph including ca. 5 curves at a temperature pitch of ca. 0.5 o C for obtaining an approximate correction quantity of exposure energy. Between the curve temperatures, it is appropriate to use the closest curve or more accurately use an exposure quantity obtained by interpolation between the curves.
  • the heating rollers 22a and 22b, and heating members 24a and 24b are provided with temperature sensors 27a, 27b, 28a and 28b respectively, and the outputs from the temperature sensors 27a, 27b, 28a and 28b are fed back to a temperature controller 29 so as to control the temperatures of the heating rollers 22a and 22b and the heating members 24a and 24b at constant.
  • the constant temperature control of the thermal development temperature by feedback of the detection results of temperature sensors can result in a irregular temperature change around a central value of the temperatures of the heating rollers and the heating members when minutely examined. Such an irregular temperature change, while it is very delicate, can result in a density deviation in the objective image.
  • the thermal development means (inclusive of the heating rollers 22a and 22b and the heating members 24a and 24b) are kept at constant temperatures while they are not used in thermal development operation, and the energy supply to the thermal development means is terminated immediately before the commencement of the thermal development operation so that the thermal development temperature is allowed to naturally cool, i.e., decrease with a regularity, and the photosensitive member is heated by the remaining heat of the thermal development means.
  • the pulses may preferably be applied at a frequency of 0.1 - 100 Hz, further preferably 0.5 - 50 Hz, and a pulse duty of 10 - 75 %, more preferably 20 - 75 %.
  • the imagewise exposure energy on the photosensitive member may preferably be 0.5 - 20 ⁇ J/cm2, more preferably 1.0 - 10 ⁇ J/cm2.
  • the thermal development temperature may preferably be 60 - 200 o C, further preferably 70 - 150 o C.
  • the heating time for the thermal development may preferably be 1 sec to 3 min, more preferably 3 sec to 60 sec.
  • the thermal development-type photosensitive member used in the present invention may comprise a photosensitive layer on a support.
  • the photosensitive layer may comprise at least an organic silver salt, a reducing agent and a silver halide.
  • organic silver salt may include silver salts of organic acids, silver salts of acetylene derivatives and silver salts of organic compounds having an imino group or a mercapto group.
  • organic acid silver salt is silver behenate.
  • the reducing agent may comprise a phenol compound, a hydrazine compound, a naphthol compound or a pyrazolidone compound.
  • phenol compound may include: aminophenol, 2,6-dichloroaminophenol, 4,4'-dihydroxy-3,3'-di-t-butyl-5,5'-dimethylbiphenyl, 2,2'-dihydroxy-3,3',5,5'-tetrakis-t-butylbiphenyl, 2,2'-dihydroxy-3,3'-dichlorobiphenol, 2,2'-methylenebis(6-t-butyl-4-methylphenol), 2,2'-propylenebis(6-t-butyl-4-ethylphenol), 4,4'-butylindenebis(2-t-butyl-6-methylphenol), 4,4'-thiobis(2-t-butyl-6-ethylphenol), and 2,6-dichloro-4-benzenesulfoneamidephenol.
  • Examples of the hydrazine compound may include: ⁇ -acetylphenylhydrazine, and ⁇ -acetyltolylhydrazine.
  • naphthol compound may include: 4-methoxynaphthol, 4-chloronaphthol, 4,4'-methylenebis(2-methylnaphthol), 4-(2,6-dimethyl-4-hydroxybenzyl)-2-methylnaphthol, and 4-(2-t-butyl-6-ethyl-4-hydroxybenzyl)-2-methylnaphthol.
  • the pyrazolidone compound may for example be 1-phenyl-3-pyrazolidone.
  • the silver halide may include: silver chloride, silver bromide, silver iodide, silver iodobromide, silver chlorobromide, and silver iodochlorobromide.
  • the silver salt can be doped with an Ir compound.
  • the silver halide may effectively comprise a fine particulate form and particularly cubic crystal particles of 0.01 ⁇ m - 0.2 ⁇ m.
  • Such a silver halide in a fine particulate form may for example be prepared by halogenating an organic silver salt with a silver halide-forming component, such as ammonium bromide, lithium bromide, sodium chloride, or N-bromosuccinic acid imide.
  • the photosensitive layer may be formed by mixing the above components together with a binder.
  • the binder may preferably comprise a hydrophobic or hydrophilic polymer which may be transparent or semi-transparent. It is particularly preferred to use a hydrophobic binder.
  • Preferred examples of the binder may include: polyviyl butyral, cellulose acetate butyrate, polymethyl methacrylate, polyester, polyvinyl chloride and copolymerization product of these polymers.
  • the support may for example comprise polyethylene, polypropylene, polyethylene terephthalate, polycarbonate, paper, synthetic paper, baryta paper for photography, or art paper.
  • the above-mentioned components may preferably be contained in the following ratios.
  • the reducing agent may preferably be contained in 0.05 - 3 mols, more preferably 0.2 - 1.3 mols, per 1 mol of the organic silver salt.
  • the organic silver salt may preferably be used in an amount of 0.3 - 30 g/m2, particularly 0.7 - 15 g/m2, further preferably 1.2 - 8 g/m2.
  • the silver halide may preferably be used in 0.001 - 2 mols, more preferably 0.05 - 1 mol, per 1 mol of the organic silver salt.
  • a coloring agent when used, it may be used in 0.01 - 5 mols, preferably 0.05 - 2 mols, further preferably 0.08 - 1 mol, per 1 mol of the organic silver salt.
  • the binder may optionally be used in 0 - 10 wt. parts, preferably 0.5 - 5 wt. parts, per 1 wt. part of the organic silver salt.
  • the photosensitive layer may preferably be formed in a thickness of 0.5 - 30 ⁇ m, further preferably 2 - 17 ⁇ m.
  • the photosensitive layer optional agents, such as an organic acid, a fog preventing agent, a coloring inhibitor, an antistatic agent, an ultraviolet absorber, an irradiation preventing dye, a fluorescent brightener, and a filtering dye.
  • optional agents such as an organic acid, a fog preventing agent, a coloring inhibitor, an antistatic agent, an ultraviolet absorber, an irradiation preventing dye, a fluorescent brightener, and a filtering dye.
  • a protective layer may be composed principally of a various binder, which may preferably comprise a hydrophilic or water-soluble resin, such as polyvinyl alcohol, casein, gelatin, or an ethylene-maleic anhydride copolymer.
  • the protective layer can further contain an optional additive, such as colloidal silica or an irradiation preventing dye.
  • the protective layer may have a thickness of 0.1 - 7 ⁇ m, preferably 0.5 - 5 ⁇ m.
  • a thermal development-type photosensitive member was prepared in the following manner.
  • a 100 ⁇ m-thick polyethylene terephthalate (PET) film was coated with a photosensitive liquid A having a composition shown below to form a photosensitive layer having a dry thickness of 13 ⁇ m, and then coated with a protective liquid B having a composition shown below to form a protective film having a dry thickness of 2 ⁇ m, thereby providing a photosensitive member suitable for the present invention.
  • PET polyethylene terephthalate
  • the thus-prepared photosensitive member was cut into a size of 210 mm x 290 mm and set in an image forming apparatus as shown in Figure 1 to be subjected to image formation.
  • the photosensitive member showed a spectral sensitivity giving a spectral absorption maximum at around 680 nm.
  • the light source used in this Example was a semiconductor laser having an oscillation wavelength of 680 nm and a maximum output power of 30 mW.
  • the photosensitive member was exposed at an exposure energy density at the surface of 3.3 ⁇ J/cm2.
  • the exposed photosensitive member was subjected to thermal development for 15 sec. at a temperature of 115.0 o C set and controlled by using a PID temperature controller (Model "E4E5", available from Omron K.K.).
  • the photosensitive member was conveyed at a rate of 15 mm/sec.
  • a test image as shown in Figure 2 including square spots a1 - a25 (each measuring 7 mm x 7 mm) was first formed.
  • the respective spots showed the following optical densities.
  • the photosensitive member showed an optical density (O.D.) - exposure energy (log E) relationship as shown in Figure 3 for a thermal development time of 15 sec.
  • the objective image formation was performed on 60 sheets of the photosensitive member at an interval of 1 min. each otherwise similarly as in the test image formation.
  • Image formation was performed by using the photosensitive member and image forming apparatus used in Example 1.
  • the energy supply to the heating rollers 22a and 22b and the heating members 24a and 24b was stopped immediately before the photosensitive member was heated by the heating rollers 22a and 22b, and the energy supply was resumed immediately after the photosensitive member left the heating members 24a and 24b so as to maintain the heating rollers and the heating members at 115 o C.
  • the thermal development temperature was lowered at a rate of 4 o C/min.
  • a test image as shown in Figure 2 including square spots a1 - a25 was first formed.
  • the respective spots showed the following optical densities.
  • the objective image formation was performed on 60 sheets of the photosensitive member at an interval of 1 min. each otherwise similarly as in the test image formation.
  • Image formation was performed by using the photosensitive member and image forming apparatus used in Example 1.
  • the feedback control for maintaining the heating rollers 22a and 22b and the heating members 24a and 24b at 115 o C was stopped immediately before the photosensitive member was heated by the heating rollers 22a and 22b, and, instead, the energy supply to the heating rollers and the heating members was performed by applying repetitive heat pulse at 1 Hz and a duty of 25 %.
  • the thermal development temperature decreased at a rate of 1 o C/min.
  • the feed back control of the heating rollers 22a and 22b and the heating members 24a and 24b at 115 o C was resumed.
  • a test image as shown in Figure 2 including square spots a1 - a25 was first formed.
  • the respective spots showed the following optical densities.
  • the objective image formation was performed on 60 sheets of the photosensitive member at an interval of 30 sec each otherwise in the same manner as in the test image formation.
  • Example 2 As a result, the resultant images were all clear and free from density deviation. According to this Example, a higher image forming speed was possible than in Example 2.
  • Image formation on 60 sheets of the photosensitive member was performed in the same manner as in Example 1 except that the correction of exposure energy was not performed.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photographic Developing Apparatuses (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
EP95105867A 1994-04-19 1995-04-19 Bilderzeugungsverfahren Withdrawn EP0679946A1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP80207/94 1994-04-19
JP8020794 1994-04-19
JP13690794A JPH086224A (ja) 1994-06-20 1994-06-20 画像形成装置
JP136907/94 1994-06-20

Publications (1)

Publication Number Publication Date
EP0679946A1 true EP0679946A1 (de) 1995-11-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP95105867A Withdrawn EP0679946A1 (de) 1994-04-19 1995-04-19 Bilderzeugungsverfahren

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EP (1) EP0679946A1 (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19610076A1 (de) * 1996-03-14 1997-09-18 Canon Kk Wärmeentwicklervorrichtung und Bildaufzeichnungsgerät
US5774204A (en) * 1995-03-02 1998-06-30 Canon Kabushiki Kaisha Heat development device having sheet pressing members and wide heating plates
US5849388A (en) * 1996-02-02 1998-12-15 Imation Corp. Article, apparatus and method for cooling a thermally processed material
US5869807A (en) * 1996-02-02 1999-02-09 Imation Corp. Apparatus and method for thermally processing an imaging material employing improved heating means
US5869806A (en) * 1996-02-02 1999-02-09 Imation Corp. Apparatus and method for thermally processing an imaging material employing means for bending the imaging material during thermal processing
US5895592A (en) * 1996-12-19 1999-04-20 Imation Corp. Apparatus and method for thermally processing an imaging material employing a system for reducing fogging on the imaging material during thermal processing
US5986238A (en) * 1996-12-19 1999-11-16 Imation Corporation Apparatus and method for thermally processing an imaging material employing means for reducing fogging on the imaging material during thermal processing
EP1008901A1 (de) * 1998-12-07 2000-06-14 Eastman Kodak Company System zur optischen Aufzeichnung eines Thermalfilmes
US6116794A (en) * 1998-08-31 2000-09-12 Eastman Kodak Company Apparatus for cooling a thermally processed material
US6146028A (en) * 1999-02-05 2000-11-14 Eastman Kodak Company Apparatus and method for cooling a thermally processed material
US6191867B1 (en) 1997-11-17 2001-02-20 Eastman Kodak Company Method and device for calibrating an imaging apparatus
EP1164430A1 (de) * 2000-06-13 2001-12-19 Eastman Kodak Company Behandlungsgerät und Verfahren zur Bestimmung optimaler Behandlungsbedingungen

Citations (4)

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US3938164A (en) * 1973-08-29 1976-02-10 Fuji Photo Film Co., Ltd. Device for thermally recording a cathode-ray tube image
US4322158A (en) * 1980-01-30 1982-03-30 Micron Corporation Thermal film development apparatus
US4371246A (en) * 1981-02-13 1983-02-01 Rca Corporation Thermal processor
JPS6317440A (ja) * 1986-07-09 1988-01-25 Fuji Photo Film Co Ltd 画像記録装置

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Publication number Priority date Publication date Assignee Title
US3938164A (en) * 1973-08-29 1976-02-10 Fuji Photo Film Co., Ltd. Device for thermally recording a cathode-ray tube image
US4322158A (en) * 1980-01-30 1982-03-30 Micron Corporation Thermal film development apparatus
US4371246A (en) * 1981-02-13 1983-02-01 Rca Corporation Thermal processor
JPS6317440A (ja) * 1986-07-09 1988-01-25 Fuji Photo Film Co Ltd 画像記録装置

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Title
PATENT ABSTRACTS OF JAPAN vol. 012, no. 224 (P - 721) 25 June 1988 (1988-06-25) *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5774204A (en) * 1995-03-02 1998-06-30 Canon Kabushiki Kaisha Heat development device having sheet pressing members and wide heating plates
US6041516A (en) * 1996-02-02 2000-03-28 Minnesota Mining & Manufacturing Article, apparatus and method for cooling a thermally processed material
US5849388A (en) * 1996-02-02 1998-12-15 Imation Corp. Article, apparatus and method for cooling a thermally processed material
US5869807A (en) * 1996-02-02 1999-02-09 Imation Corp. Apparatus and method for thermally processing an imaging material employing improved heating means
US5869806A (en) * 1996-02-02 1999-02-09 Imation Corp. Apparatus and method for thermally processing an imaging material employing means for bending the imaging material during thermal processing
DE19610076C2 (de) * 1996-03-14 2001-06-13 Canon Kk Wärmeentwicklungsvorrichtung
DE19610076A1 (de) * 1996-03-14 1997-09-18 Canon Kk Wärmeentwicklervorrichtung und Bildaufzeichnungsgerät
US5986238A (en) * 1996-12-19 1999-11-16 Imation Corporation Apparatus and method for thermally processing an imaging material employing means for reducing fogging on the imaging material during thermal processing
US5895592A (en) * 1996-12-19 1999-04-20 Imation Corp. Apparatus and method for thermally processing an imaging material employing a system for reducing fogging on the imaging material during thermal processing
US6191867B1 (en) 1997-11-17 2001-02-20 Eastman Kodak Company Method and device for calibrating an imaging apparatus
US6116794A (en) * 1998-08-31 2000-09-12 Eastman Kodak Company Apparatus for cooling a thermally processed material
EP1008901A1 (de) * 1998-12-07 2000-06-14 Eastman Kodak Company System zur optischen Aufzeichnung eines Thermalfilmes
US6278510B1 (en) 1998-12-07 2001-08-21 Eastman Kodak Company System for optical writing to thermal film
US6146028A (en) * 1999-02-05 2000-11-14 Eastman Kodak Company Apparatus and method for cooling a thermally processed material
EP1164430A1 (de) * 2000-06-13 2001-12-19 Eastman Kodak Company Behandlungsgerät und Verfahren zur Bestimmung optimaler Behandlungsbedingungen
US6490023B1 (en) 2000-06-13 2002-12-03 Eastman Kodak Company Processing apparatus and method for determining optimum processing characteristics of thermal developable film

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