US3685905A - Combined document feed and book copying apparatus - Google Patents

Combined document feed and book copying apparatus Download PDF

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Publication number
US3685905A
US3685905A US136437A US3685905DA US3685905A US 3685905 A US3685905 A US 3685905A US 136437 A US136437 A US 136437A US 3685905D A US3685905D A US 3685905DA US 3685905 A US3685905 A US 3685905A
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US
United States
Prior art keywords
platen
housing
frame
pivotally mounted
book
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
US136437A
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English (en)
Inventor
George E Marshall
Bartholomew J Perno
Robert G Stokes
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.)
Xerox Corp
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Xerox Corp
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Filing date
Publication date
Application filed by Xerox Corp filed Critical Xerox Corp
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Publication of US3685905A publication Critical patent/US3685905A/en
Anticipated expiration legal-status Critical
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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
    • G03G15/60—Apparatus which relate to the handling of originals
    • G03G15/605—Holders for originals or exposure platens

Definitions

  • a document transport co-extensive with the platen is pivotally mounted on the housing for movement from a first position wherein the document transport feeds documents into overlying relationship with said platen to a second position away from said platen where books may be positioned in overlying relationship thereto.
  • This invention relates to a combined document and book copying apparatus which enables feeding of single sheets in overlying relationship to the platen of a reproduction machine as well as restraining of bound volumes or books on the platen in a safe end reliable manner.
  • FIG. 1 is a perspective view of a duplicating machine incorporating the combined document and book copying apparatus according to the present invention
  • FIG. 2 is an isometric view of the exterior of the combined document and book copying apparatus
  • FIG. 3 is a side sectional view of the combined document and book copying apparatus with certain parts in section to show certain details thereof;
  • FIGS. 4a through 4d illustrate the different positions of the apparatus of the invention for the different modes of operation wherein FIG. 4a illustrates the position for the document feed; FIG. 4b illustrates the position for inserting single oversize documents and FIGS. 4c and 4d illustrate the open and closed positions of the book copying mode of operation, respectively; and
  • FIG. 5 illustrates the combined document feed and book copying apparatus in the book mode of operation with the diaphragm assembly extended.
  • FIG. 1 For a general understanding of the duplicating machine incorporating the present invention reference is made to FIG. 1 wherein various components of a typical electrostatic printer system are illustrated.
  • the printer system is of the xerographic type and utilizes a document and book copying apparatus generally designated with the reference numeral 10.
  • a light image of an original to be reproduced is projected onto the sensitized surface of a xerographic plate to form an electrostatic latent image.
  • the latent image is developed with toner material to form a xerographic powder image corresponding to the latent image on the plate surface.
  • the powder image is then electrostatically transferred to a record material such as a sheet or web of paper or the like to which it may be fused by a fusing device whereby the powder image is caused permanently to adhere to the surface of the record material.
  • the xerographic processor indicated by the reference numeral 11 is arranged as a self-contained unit having all of its processing stations located in a unitary enclosure or cabinet.
  • the printer system includes a combined document and book copying apparatus 10 at an exposure stationat which a light radiation pattern of document information to be reproduced may be positioned on a glass platen 12 (FIG. 3).
  • the document information may be a single sheet or alternatively a bound volume or book positioned for projection onto a photoconductive surface in the form of a xerographic belt 13 as will be explained more fully hereinafter.
  • a document sheet is transported to and from the document and book copying apparatus 10 by a recirculating document feed apparatus 15 from the bottom of a stack 17 positioned on a supply tray 19 until the entire stack has been copied at which time the cycle may be repeated as described in in US. Pat No. 3,556,512 to George E. F ackler entitled Document Feed Apparatus and commonly assigned with the present invention.
  • the present invention is an improvement over the aforementioned patent to enable the copying of bound volumes or books as well as documents.
  • Imaging light rays from the document as flash illuminated by lamps 18 are projected by a first mirror 20 and a projection lens 21 and another mirror 23 onto the belt 13 at the focal plane for the lens 21 at a position indicated by the dotted line 25.
  • the side of the cabinet is formed with an enlarged rectangular opening to permit the projection of image light rays from the lens 21 to the mirror 23.
  • the cabinet supporting the document plane is formed with a corresponding rectangular opening that mates with the opening in the printer cabinet when the two cabinets are operatively joined together for copy/duplicating purposes.
  • Suitable light-type gaskets may be utilized adjacent the exterior of each opening in the cabinets in order to minimize the leakage of unwanted extraneous light.
  • the xerographic belt 13 is mounted for movement around three parallel arranged rollers 27 suitably mounted in the frame of processor 1 1.
  • the belt may be continuously driven by a suitable motor (not shown) and at an appropriate speed corresponding to the discharge responsive the photoconductive material that comprises the belt and the intensity of the imaging light rays from the document.
  • the exposure of the belt to the imaging light rays from the document discharges the photoconductive layer in the area struck by light whereby there remains on the belt an electrostatic latent image of configuration corresponding to the light image projected from the document.
  • the electrostatic latent image passes a developing station at which there is positioned a developer apparatus 29 for developing the electrostatic latent image.
  • the powdered image is moved to an image transfer station whereat record material or sheet of paper just previously separated from a stack of sheets 30 is held against the surface of the belt to receive the developed powder image therefrom.
  • the sheet is moved in synchronism with the movement of the belt during transfer of the developed image.
  • the sheet of paper is 51 is a drive belt assembly 61 which includes a frame 62 housing one or more drive belts 63 mounted on rollers 65 and 67 and suitably biased by pressure roll members 69 so as to maintain good pressure contact between a sheet being fed with the platen 12. It will be appreciated that the belts 63 are driven by the drive mechanism for the document feed apparatus 53 through a timing belt 71.
  • a fuser device 31 is positioned to receive the sheet of paper for fusing the powder thereon. After fusing of the powder image the sheet is conveyed to a copy tray. The sheets are separated from the stack and fed from the top of the stack by means of a separator roll device 33 and timed sequence of the movement of the developed latent images on the belt 13.
  • the printer system may be operated in conjunction with a roll converter unit indicated by the reference numeral 35.
  • the roll converter unit 35 is adapted to covert a relatively large roll of paper 36 into various sizes of sheets of paper by means of a cutter device 37 and a suitable control system (not shown) arranged to control cutting and feeding of the individual sheets into operative cooperation with the separator roller 26. It will be appreciated that operative cooperation is assured between the various units operating with the printer system by the physical association of the cabinets for the units and the matching openings which enable full cooperation of the imaging light rays and sheet transport path between the units.
  • locking clamps may be provided on all the units for preventing the inadvertent movement of such units during use and interlocks which is an alignment device may be utilized on each unit for ensuring upper alignment and to terminate or suspend operation in the event misalignment or separation of the units occur.
  • interlocks which is an alignment device may be utilized on each unit for ensuring upper alignment and to terminate or suspend operation in the event misalignment or separation of the units occur.
  • each of the units provided with caster wheels and locking brakes thereby aiding in the movement of the units into and out of cooperative engagement.
  • FIGS. 2 through the combined document and book copying apparatus comprises a box-like frame 51 which is pivotally hinged to the machine frame by one or more hinge members 53 on hinge pivot pins 55. Housed within the box-like frame tinuous feeding of a document from the stack 17 to the platen 12 as described in the aforementioned patent.
  • box-like housing 51 includes a pivotable top cover member which is hinged to the housing 51 by one or more hinge members 77 and suitable fastening screws 79.
  • Top cover member 75 is formed with an opening 81 across which is positioned a diaphragm assembly 83.
  • Diaphragm assembly 83 is formed from an elastic light weight rubber membrane 84 which is preferably made of a hyplon rubber for flexibility and strength and is colored white to reflect light rays through the machine optical system.
  • a pad member 85 is enclosed within the membrane 84 to facilitate copying a book as will be explained hereinafter.
  • Diaphragm assembly 83 is secured to the underside of the top cover member 75 by one or more clamping members 87 extending around the periphery thereof which are suitably secured to the top cover member by means of screws 89 to form a light-tight fitting with the box-like housing.
  • the membrane has thickness ranging from about 20 to about 30 mils so as to enable stretching for holding the book or bound volume tight to the platen as best shown in FIG. 5.
  • the combined document and book copying apparatus When in the automatic document copying mode, the combined document and book copying apparatus is positioned as shown in FIG. 4a, with the belt 63 being driven by the document feed apparatus for feeding the documents onto the platen.
  • the combined document and book copying apparatus With the combined document and book copying apparatus in the raised position as shown in FIG. 4b the operation of the printer system would be for the reproduction of a single oversized sheet which may be inserted onto the platen with the combined document and book copying apparatus pivoted upwardly on hinge 53 and then repositioned as shown in FIG. 4a. In this case, the document feed belt 63 is not energized.
  • the top cover member When it is desired to go into a book copying mode of operation, the top cover member is pivoted on hinge 77 to a raised position and the document feed belt lifted from the platen and pivoted on roll 67 into a rest position against the frame. The book or bound volume is then inserted onto the platen and the top cover member closed as shown in FIGS. 4d and 5. The machine is now ready to copy in the book mode of operation. It will be appreciated that due to an operators hand pressing against the diaphragm assembly a firm pressure is maintained on the book against the platen and high quality prints are ensured.
  • Apparatus for copying documents and books comprising:
  • document transport means pivotally mounted within said housing for movement between a first position in which it is coextensive with and overlies said platen for feeding documents into overlying relationship with said platen and a second position in which said transport means is pivoted away from said platen and outside said housing with said housing top cover being closed over said platen such that a book may be placed on said platen and held by said top cover.
  • Apparatus for copying documents and books comprising:
  • a one of said walls forming a top cover for said housing and being pivotally mounted to said housing to obtain free access to said platen;
  • document transport means co-extensive with said platen and pivotally mounted on said housing for movement from a first position wherein said document transport means feeds documents into overlying relationship with said platen to a second position away from said platen where books may be positioned in overlying relationship thereto;
  • top wall of said housing is formed with an opening and a diaphragm means is secured to said top wall member and arranged co-extensive therewith whereby pressure exerted on said diaphragm means may be imparted to a book overlying said platen area.
  • said diaphragm means includes a membrane made of an elastomeric material having a thickness ranging from about 20 to about 30 mils to enable forming over objects of a predetermined thickness and then resuming a planar position upon release.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Holders For Sensitive Materials And Originals (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)
US136437A 1971-04-22 1971-04-22 Combined document feed and book copying apparatus Expired - Lifetime US3685905A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13643771A 1971-04-22 1971-04-22

Publications (1)

Publication Number Publication Date
US3685905A true US3685905A (en) 1972-08-22

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ID=22472858

Family Applications (1)

Application Number Title Priority Date Filing Date
US136437A Expired - Lifetime US3685905A (en) 1971-04-22 1971-04-22 Combined document feed and book copying apparatus

Country Status (9)

Country Link
US (1) US3685905A (enrdf_load_stackoverflow)
JP (1) JPS5437499B1 (enrdf_load_stackoverflow)
BE (1) BE782370A (enrdf_load_stackoverflow)
BR (1) BR7202125D0 (enrdf_load_stackoverflow)
CA (1) CA954579A (enrdf_load_stackoverflow)
FR (1) FR2136623A5 (enrdf_load_stackoverflow)
GB (1) GB1382646A (enrdf_load_stackoverflow)
IT (1) IT959701B (enrdf_load_stackoverflow)
NL (1) NL161593C (enrdf_load_stackoverflow)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3804512A (en) * 1971-06-03 1974-04-16 Canon Kk Copying apparatus for sheet originals and thicker originals
US3813161A (en) * 1973-03-12 1974-05-28 Xerox Corp Platen cover
US3829083A (en) * 1971-11-13 1974-08-13 Ricoh Kk Automatic original feed device for electrophotographic duplicating machine
DE2447472A1 (de) * 1973-10-05 1975-04-17 Canon Kk Vorlagehaltevorrichtung an kopiergeraeten
US3888581A (en) * 1974-03-08 1975-06-10 Xerox Corp Semi-automatic document handler
US3888585A (en) * 1974-03-08 1975-06-10 Xerox Corp Semi-automatic document handler
US3943535A (en) * 1972-12-20 1976-03-09 Fuji Photo Film Co., Ltd. Film casette
US3989376A (en) * 1973-06-12 1976-11-02 Ing. C. Olivetti & C., S.P.A. Device for positioning and covering documents in a reprographic machine
US4171906A (en) * 1977-05-18 1979-10-23 Olympus Optical Company Ltd. Device for holding down a document
FR2449909A1 (fr) * 1979-02-23 1980-09-19 Ormig Appareil de copie electrostatique
EP0062798A1 (en) * 1981-03-31 1982-10-20 Mita Industrial Co. Ltd. Improvement in electrostatic copying apparatus
US4395118A (en) * 1974-03-12 1983-07-26 Canon Kabushiki Kaisha Copying apparatus
US5235382A (en) * 1988-01-26 1993-08-10 Nehrbass Seth M Photocopy machine cover
EP1260876A1 (en) 2001-05-25 2002-11-27 Ricoh Company, Ltd. A platen cover, image scanning device and image forming apparatus with the cover

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3512884A (en) * 1967-09-16 1970-05-19 Karl M Murgas Original document transport system for a photocopy machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3512884A (en) * 1967-09-16 1970-05-19 Karl M Murgas Original document transport system for a photocopy machine

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3804512A (en) * 1971-06-03 1974-04-16 Canon Kk Copying apparatus for sheet originals and thicker originals
US3829083A (en) * 1971-11-13 1974-08-13 Ricoh Kk Automatic original feed device for electrophotographic duplicating machine
US3943535A (en) * 1972-12-20 1976-03-09 Fuji Photo Film Co., Ltd. Film casette
US3813161A (en) * 1973-03-12 1974-05-28 Xerox Corp Platen cover
US3989376A (en) * 1973-06-12 1976-11-02 Ing. C. Olivetti & C., S.P.A. Device for positioning and covering documents in a reprographic machine
DE2447472A1 (de) * 1973-10-05 1975-04-17 Canon Kk Vorlagehaltevorrichtung an kopiergeraeten
US3888585A (en) * 1974-03-08 1975-06-10 Xerox Corp Semi-automatic document handler
US3888581A (en) * 1974-03-08 1975-06-10 Xerox Corp Semi-automatic document handler
US4395118A (en) * 1974-03-12 1983-07-26 Canon Kabushiki Kaisha Copying apparatus
US4171906A (en) * 1977-05-18 1979-10-23 Olympus Optical Company Ltd. Device for holding down a document
FR2449909A1 (fr) * 1979-02-23 1980-09-19 Ormig Appareil de copie electrostatique
EP0062798A1 (en) * 1981-03-31 1982-10-20 Mita Industrial Co. Ltd. Improvement in electrostatic copying apparatus
US5235382A (en) * 1988-01-26 1993-08-10 Nehrbass Seth M Photocopy machine cover
EP1260876A1 (en) 2001-05-25 2002-11-27 Ricoh Company, Ltd. A platen cover, image scanning device and image forming apparatus with the cover
US6697600B2 (en) 2001-05-25 2004-02-24 Ricoh Company, Ltd. Cover plate, image scanning device and image forming apparatus

Also Published As

Publication number Publication date
GB1382646A (en) 1975-02-05
DE2209890A1 (de) 1972-11-23
DE2209890B2 (de) 1977-06-23
NL161593B (nl) 1979-09-17
IT959701B (it) 1973-11-10
BR7202125D0 (pt) 1973-06-12
NL161593C (nl) 1980-02-15
NL7203121A (enrdf_load_stackoverflow) 1972-10-24
BE782370A (fr) 1972-10-20
JPS5437499B1 (enrdf_load_stackoverflow) 1979-11-15
CA954579A (en) 1974-09-10
FR2136623A5 (enrdf_load_stackoverflow) 1972-12-22

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