US3740133A - Electrophotographic copying apparatus of slit exposure type - Google Patents

Electrophotographic copying apparatus of slit exposure type Download PDF

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Publication number
US3740133A
US3740133A US00211383A US3740133DA US3740133A US 3740133 A US3740133 A US 3740133A US 00211383 A US00211383 A US 00211383A US 3740133D A US3740133D A US 3740133DA US 3740133 A US3740133 A US 3740133A
Authority
US
United States
Prior art keywords
original
carriage
sheet
thick
slit exposure
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
US00211383A
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English (en)
Inventor
S Komori
J Sato
H Hattori
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 US3740133A publication Critical patent/US3740133A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
    • G03G15/28—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which projection is obtained by line scanning
    • G03G15/30—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which projection is obtained by line scanning in which projection is formed on a drum
    • G03G15/302—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which projection is obtained by line scanning in which projection is formed on a drum with arrangements for copying different kinds of originals, e.g. sheets, books

Definitions

  • An electrophotographic copying apparatus of slit exposure type comprises a sheet original conveyor mechanism provided on top of the machine housing, and an original carriage having a transparent sheet of glass or the like provided contiguously with the frame of the conveyor mechanism.
  • a sheet original is to be copied, such original is transported by the sheet original conveyor mechanism for a through-slit exposure.
  • a thick original such as book or the like is to be copied, the original carriage with the thick, original thereon is forced to move with the conveyor mechanism to disconnect the mechanism from its drive system but connect the drive system to the original carriage, whereafter the carriage is moved for the thick original thereon to be subjected to a through-slit exposure.
  • FIG. 25 Patented June 19, 1973 17 Sheets-Sheet l6 Patented June 19, 1973 l7 Sheets-Sheet 16 Patcntgd June 19, 1973 1'7 Sheets-Sheet 1')
  • FIG. 25 Patented June 19, 1973 17 Sheets-Sheet l6 Patented June 19, 1973 l7 Sheets-Sheet 16 Patcntgd June 19, 1973 1'7 Sheets-Sheet 1'
  • This invention relates to a photographic, especially an electrophotographic, copying machine of the through-slit exposure type, and more particularly to a simplified photographic copying machine of such type for use with originals in the form of sheet (hereinafter referred to as sheet originals) and and originals in the form of book or the like (hereinafter referred to as thick originals).
  • a copying machine for use with books or other thick originals is characterized by its capability of copying sheet originals as well as thick originals, but the machine of this type involves the procedures of opening an original setting cover, placing a sheet original or a thick original on an original supporting glass sheet, closing the cover and depressing a copy button. Further, the return stroke of its original carriage or its optical system is involved not only to limit the copying speed but also to complicate the machine construction and accordingly increase the cost of the machine.
  • This versatile copying machine is either such that the machine parts overlying the passage surface for sheet originals are made into a detachable construction which, for a thick original to be copied, may be detached to expose the sheet original transport rollers of the machine proper, whereby the thick original such as book or the like is manually pressed against these rollers and exposed to light while being moved by the rubber rollers to produce a copy, or such that a carrier formed of transparent glass or plastics sheet is provided to support a book or the like thereon and two or more pairs of transport rollers are provided to hold therebetween the ends of the carrier so as to move the carrier for accomplishing exposure.
  • Such machine is characterized by its relatively low cost of the manufacture, but suffers from various demerits and practical problems as enumerated hereunder.
  • roller driving gear or sprocket wheel located at one end of the original transport rollers is unavoidably projected upwardly beyond the plane of the original passage surface to prohibit flat formation of the original passage surface and accordingly prevent a part of a bulky original from being duly copied.
  • the present invention has, for its object, to provide a practical copying machine which holds characteristics as a sheet original copying machine and which can also function as a machine for copying books or other thick originals.
  • a sheet original conveyor mechanism is provided on the top of a machine housing and an original carriage having a transparent sheet of glass or like material is provided contiguously with the frame of said mechanism.
  • a sheet original is to be copied, such original is transported by transport rollers included in the sheet original conveyor mechanism and then subjected to a through-slit exposure at an illuminating station.
  • the present invention is applicable not only to electrophotographic or electrofax copying machines of the image transfer type but generally to other copying machines of the through-slit exposure type.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Paper Feeding For Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Forming Counted Batches (AREA)
US00211383A 1970-12-30 1971-12-23 Electrophotographic copying apparatus of slit exposure type Expired - Lifetime US3740133A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12631670A JPS556889B1 (fr) 1970-12-30 1970-12-30

Publications (1)

Publication Number Publication Date
US3740133A true US3740133A (en) 1973-06-19

Family

ID=14932156

Family Applications (1)

Application Number Title Priority Date Filing Date
US00211383A Expired - Lifetime US3740133A (en) 1970-12-30 1971-12-23 Electrophotographic copying apparatus of slit exposure type

Country Status (13)

Country Link
US (1) US3740133A (fr)
JP (1) JPS556889B1 (fr)
AU (1) AU469536B2 (fr)
BE (1) BE777515A (fr)
CA (1) CA981740A (fr)
CH (1) CH539863A (fr)
DE (1) DE2164220C2 (fr)
FR (1) FR2121117A5 (fr)
GB (2) GB1384067A (fr)
IT (1) IT945708B (fr)
NL (1) NL176713C (fr)
SE (1) SE378465B (fr)
SU (1) SU522826A3 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990792A (en) * 1974-03-23 1976-11-09 Canon Kabushiki Kaisha Reciprocating movement control device
US3993406A (en) * 1974-10-15 1976-11-23 Zeuthen & Aagaard A/S Electrophotographic copying apparatus
US3997261A (en) * 1974-10-15 1976-12-14 Zeuthen & Aagaard A/S Electrophotographic copying apparatus
US4009955A (en) * 1971-06-03 1977-03-01 Canon Kabushiki Kaisha Copying apparatus for sheet originals and thicker originals
USRE29187E (en) * 1971-02-16 1977-04-19 Canon Kabushiki Kaisha Copying apparatus
US4080064A (en) * 1975-11-18 1978-03-21 Canon Kabushiki Kaisha Copying apparatus
US4174904A (en) * 1976-10-26 1979-11-20 Minolta Camera Kabushiki Kaisha Electrophotographic copying apparatus for copying thick and thin originals
US4530591A (en) * 1982-06-03 1985-07-23 Olympus Optical Company Ltd. Original conveying apparatus for copying machine
US6580076B1 (en) * 1999-09-24 2003-06-17 Japan Science And Technology Corporation Micro-manipulation method
US6705691B2 (en) * 2000-01-14 2004-03-16 Canon Kabushiki Kaisha Ink-jet printing method and ink-jet printer
US6744618B2 (en) * 1999-12-09 2004-06-01 Saint-Gobain Ceramics & Plastics, Inc. Electrostatic chucks with flat film electrode

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4435068A (en) * 1981-05-29 1984-03-06 Savin Corporation Apparatus for electrophotography

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3510218A (en) * 1966-09-26 1970-05-05 Lumoprint Zindler Kg Document and book scanning copying apparatus
US3597074A (en) * 1968-07-18 1971-08-03 Icp Inc Combination sheet and book copy machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1284275B (de) * 1967-09-16 1968-11-28 Agfa Gevaert Ag Optisches Kopiergeraet
US3679121A (en) * 1970-07-17 1972-07-25 Continental Can Co Carton with gussetted ends
DE2107321C3 (de) * 1971-02-16 1980-08-21 Canon K.K., Tokio Kopiervorrichtung, bei der wahlweise zweidimensionale oder dreidimensionale Vorlagen über den Belichtungsspalt gefahren werden

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3510218A (en) * 1966-09-26 1970-05-05 Lumoprint Zindler Kg Document and book scanning copying apparatus
US3597074A (en) * 1968-07-18 1971-08-03 Icp Inc Combination sheet and book copy machine

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE29187E (en) * 1971-02-16 1977-04-19 Canon Kabushiki Kaisha Copying apparatus
US4009955A (en) * 1971-06-03 1977-03-01 Canon Kabushiki Kaisha Copying apparatus for sheet originals and thicker originals
US3990792A (en) * 1974-03-23 1976-11-09 Canon Kabushiki Kaisha Reciprocating movement control device
US3993406A (en) * 1974-10-15 1976-11-23 Zeuthen & Aagaard A/S Electrophotographic copying apparatus
US3997261A (en) * 1974-10-15 1976-12-14 Zeuthen & Aagaard A/S Electrophotographic copying apparatus
US4080064A (en) * 1975-11-18 1978-03-21 Canon Kabushiki Kaisha Copying apparatus
US4174904A (en) * 1976-10-26 1979-11-20 Minolta Camera Kabushiki Kaisha Electrophotographic copying apparatus for copying thick and thin originals
US4530591A (en) * 1982-06-03 1985-07-23 Olympus Optical Company Ltd. Original conveying apparatus for copying machine
US6580076B1 (en) * 1999-09-24 2003-06-17 Japan Science And Technology Corporation Micro-manipulation method
US6744618B2 (en) * 1999-12-09 2004-06-01 Saint-Gobain Ceramics & Plastics, Inc. Electrostatic chucks with flat film electrode
US6705691B2 (en) * 2000-01-14 2004-03-16 Canon Kabushiki Kaisha Ink-jet printing method and ink-jet printer

Also Published As

Publication number Publication date
DE2164220A1 (de) 1972-07-13
FR2121117A5 (fr) 1972-08-18
GB1384067A (en) 1975-02-19
NL176713B (nl) 1984-12-17
CA981740A (en) 1976-01-13
JPS556889B1 (fr) 1980-02-20
IT945708B (it) 1973-05-10
NL7118125A (fr) 1972-07-04
SE378465B (fr) 1975-09-01
AU3743771A (en) 1973-07-05
NL176713C (nl) 1985-05-17
AU469536B2 (en) 1976-02-19
BE777515A (fr) 1972-04-17
CH539863A (de) 1973-07-31
GB1384068A (en) 1975-02-19
DE2164220C2 (de) 1984-09-06
SU522826A3 (ru) 1976-07-25

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