US3893245A - Photocopying apparatus - Google Patents

Photocopying apparatus Download PDF

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Publication number
US3893245A
US3893245A US340558A US34055873A US3893245A US 3893245 A US3893245 A US 3893245A US 340558 A US340558 A US 340558A US 34055873 A US34055873 A US 34055873A US 3893245 A US3893245 A US 3893245A
Authority
US
United States
Prior art keywords
heating plate
sealed chamber
copy
endless belt
copying machine
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.)
Expired - Lifetime
Application number
US340558A
Other languages
English (en)
Inventor
Wilhelm Knechtel
Gerhard Petersdorf
Winfried Sandner
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
Application filed by Canon Inc filed Critical Canon Inc
Application granted granted Critical
Publication of US3893245A publication Critical patent/US3893245A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/10—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
    • G03G15/11—Removing excess liquid developer, e.g. by heat
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D15/00—Apparatus for treating processed material
    • G03D15/02—Drying; Glazing
    • G03D15/022—Drying of filmstrips
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D15/00—Apparatus for treating processed material
    • G03D15/02—Drying; Glazing
    • G03D15/027—Drying of plates or prints

Definitions

  • the apparatus of the above type is advantageous in that vapor produced during the drying of a copy does not leak out of the apparatus but rather drops into a condenser. Further, the necessary gasification temper ature is maintained most strictly and ensures that sufficient gasification will take place without the danger of explosion.
  • the copy is moved over the heating plate with the aid of a number of rollers, particularly, rollers cove red with fur or velvet. It has been found that since these rollers are rotating even before the copy reaches them, the heating plate is polished smoothly in the portions thereof which are contacted by the fur or velvet hairs of the rollers, but the portions which are not contacted by those hairs are not polished. This may cause irregularities in the sliding friction longitudinally of the heating plate with respect to the copy, which may sometimes be disadvantageous.
  • this object may be achieved by providing one or more endless belts, preferably of velvet or fur, moved around two rollers to transport a copy and also to urge the copy against the heating plate.
  • a light metal plate preferably a perforated aluminum plate, is loosely mounted between the two rollers for pressing the belts moved over the heating plate, to thereby enhance the friction of the belts with respect the the passing copy and the positiveness of the copy transport.
  • a plurality of stops may be provided to prevent the light metal plate from being moved toward one of the rollers by the belts and also to prevent the light metal plate from being raised when the apparatus is inclined.
  • the heating plate is curved into a convex shape.
  • the light metal plate loses its role as a pressure plate, because the belts now accommodate the curvature of the heating plate and cannot help contacting the surface of this plate of their own accord.
  • the hairy belts moved around the rollers conveniently seal the inlet and outlet openings.
  • FIG. 1 is a side view, in cross section, of the drying chamber
  • FIG. 2 is a sectional view taken along line II-I
  • FIG. 3 shows another embodiment.
  • a copy 1 coming from an unshown developing device passes through an opening 2 in the direction of arrow 3 and enters a drying chamber 4.
  • a heating plate 5 of aluminum forms the lower wall of the drying chamber.
  • the heating plate 5 is electrically heated in an unshown manner and maintained at a constant temperature.
  • a plurality of belts 42 is wrapped about rollers and 4!. These belts may advantageously be formed of velvet or fur.
  • the copy is transported over the heating plate by the belts 42.
  • the copy passes through an outlet opening I] to leave the drying chamber 4.
  • a light metal plate preferably a perforated aluminum plate 43, which urges the belts 42 against the heating plate 5 by its own weight to thereby ensure positive transport of the passing copy.
  • the light metal plate 43 is loosely mounted in the drying chamber. Stops 44 prevent the light metal plate from being urged against the roller 40 by the belts. Stops 45 prevent the light metal plate 43 from being displaced laterally. Upper stops 46 prevent the plate from being freely moved when the apparatus is inclined.
  • the belts of velvet may be cut obliquely with respect to the edges thereof, as is disclosed in German Patent application 215S248.7.
  • the hairs of the belts also seal the inlet opening 2 and the outlet opening 11.
  • a heating plate 50 is curved so that the surface thereof forms a cylindrical surface curved into a convex shape.
  • the belts 42 between the rollers 40 and 41 follow the curvature of the heating plate and press the heating plate of their own accord.
  • a liquid development type copying machine including a sealed chamber having a plurality of walls through which a copy material having a developed image thereon is transported for drying said copy material, said sealed chamber including inlet and outlet ports, stationary heating plate means, and means to transport said copy material from said inlet port over said heating plate means to said outlet port, said transport means comprising at least a pair of driven rollers and endless belt means movably extended around said pair of driven rollers, said endless belt means having a fluffy outer surface, the improvement comprising said heating plate means forming one of said walls of said sealed chamber, and said endless belt means sealing the inlet and outlet ports of said sealed chamber, by contacting a portion of said walls, and further comprising means to press said endless belt means against a stationary surface of said stationary heating plate means, wherein said copy material transported through said sealed chamber is uniformly interposed between and in uniform contact with each of said fluffy surface and said stationary surface of said heating plate.
  • a liquid development type copying machine according to claim 1, wherein said heating plate is curved into a convex shape with respect to said fluffy surface of said endless belt means.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fixing For Electrophotography (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Drying Of Solid Materials (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Belt Conveyors (AREA)
US340558A 1972-03-28 1973-03-12 Photocopying apparatus Expired - Lifetime US3893245A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2215099A DE2215099C3 (de) 1971-11-06 1972-03-28 Trockeneinrichtung für naß entwickelte Kopien

Publications (1)

Publication Number Publication Date
US3893245A true US3893245A (en) 1975-07-08

Family

ID=5840422

Family Applications (1)

Application Number Title Priority Date Filing Date
US340558A Expired - Lifetime US3893245A (en) 1972-03-28 1973-03-12 Photocopying apparatus

Country Status (6)

Country Link
US (1) US3893245A (de)
JP (1) JPS5611956B2 (de)
DE (1) DE2215099C3 (de)
GB (1) GB1428471A (de)
NL (1) NL7303872A (de)
SU (1) SU471742A3 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360340A (en) * 1979-06-08 1982-11-23 Dr. Ing. Rudolf Hell Gmbh Thermal developer for dry silver photographic paper
US4518845A (en) * 1982-11-03 1985-05-21 Minnesota Mining And Manufacturing Company Device for processing thermally developable films and papers
US6047151A (en) * 1998-05-06 2000-04-04 Imation Corp. Drying system and method for an electrophotographic imaging system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5624953B2 (de) * 1973-11-30 1981-06-09
JPS60513U (ja) * 1983-06-10 1985-01-05 株式会社精工舎 パルス発生装置
DE3527251A1 (de) * 1985-07-30 1987-02-12 Meteor Siegen Apparat Schmeck Heizvorrichtung fuer diazokopiermaschinen zum ausgasen der entwickelten lichtpausen
JPH0362865U (de) * 1989-10-20 1991-06-19

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1943874A (en) * 1931-08-31 1934-01-16 Fmc Corp Drier
US2046047A (en) * 1932-09-15 1936-06-30 Libbey Owens Ford Glass Co Apparatus for the manufacture of safety glass
US2933825A (en) * 1956-11-19 1960-04-26 Paper Converting Machine Co Moisture removal system
US3071866A (en) * 1959-09-14 1963-01-08 Miami Herald Publishing Compan High speed photographic print drying machine
US3374769A (en) * 1965-12-06 1968-03-26 Xerox Corp Toner fusing apparatus
US3378430A (en) * 1964-12-11 1968-04-16 Aizawa Tadashi Laterally connecting apparatus for veneer
US3435751A (en) * 1966-11-03 1969-04-01 Gaf Corp Photocopy developing apparatus
US3448970A (en) * 1967-08-04 1969-06-10 Addressograph Multigraph Fuser for electrostatic images
US3657068A (en) * 1970-01-07 1972-04-18 Orr Felt Co The Papermaking felt
US3659348A (en) * 1970-05-27 1972-05-02 Eastman Kodak Co Apparatus for fusing xerographic toners
US3668786A (en) * 1968-05-10 1972-06-13 Vante De Materiels Pour La Fab Facility for heating a product in strip

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1943874A (en) * 1931-08-31 1934-01-16 Fmc Corp Drier
US2046047A (en) * 1932-09-15 1936-06-30 Libbey Owens Ford Glass Co Apparatus for the manufacture of safety glass
US2933825A (en) * 1956-11-19 1960-04-26 Paper Converting Machine Co Moisture removal system
US3071866A (en) * 1959-09-14 1963-01-08 Miami Herald Publishing Compan High speed photographic print drying machine
US3378430A (en) * 1964-12-11 1968-04-16 Aizawa Tadashi Laterally connecting apparatus for veneer
US3374769A (en) * 1965-12-06 1968-03-26 Xerox Corp Toner fusing apparatus
US3435751A (en) * 1966-11-03 1969-04-01 Gaf Corp Photocopy developing apparatus
US3448970A (en) * 1967-08-04 1969-06-10 Addressograph Multigraph Fuser for electrostatic images
US3668786A (en) * 1968-05-10 1972-06-13 Vante De Materiels Pour La Fab Facility for heating a product in strip
US3657068A (en) * 1970-01-07 1972-04-18 Orr Felt Co The Papermaking felt
US3659348A (en) * 1970-05-27 1972-05-02 Eastman Kodak Co Apparatus for fusing xerographic toners

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360340A (en) * 1979-06-08 1982-11-23 Dr. Ing. Rudolf Hell Gmbh Thermal developer for dry silver photographic paper
US4518845A (en) * 1982-11-03 1985-05-21 Minnesota Mining And Manufacturing Company Device for processing thermally developable films and papers
US6047151A (en) * 1998-05-06 2000-04-04 Imation Corp. Drying system and method for an electrophotographic imaging system

Also Published As

Publication number Publication date
JPS4912824A (de) 1974-02-04
DE2215099B2 (de) 1979-05-31
NL7303872A (de) 1973-10-02
JPS5611956B2 (de) 1981-03-18
SU471742A3 (ru) 1975-05-25
DE2215099A1 (de) 1973-10-04
GB1428471A (en) 1976-03-17
DE2215099C3 (de) 1980-01-31
AU5368473A (en) 1974-09-26

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