US3815990A - High speed copy machine - Google Patents

High speed copy machine Download PDF

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Publication number
US3815990A
US3815990A US00245527A US24552772A US3815990A US 3815990 A US3815990 A US 3815990A US 00245527 A US00245527 A US 00245527A US 24552772 A US24552772 A US 24552772A US 3815990 A US3815990 A US 3815990A
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US
United States
Prior art keywords
frame
exposing
path
copy
leg
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
US00245527A
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English (en)
Inventor
H Newcomb
S Sparer
R Abrahamson
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.)
Apeco Corp
Original Assignee
Apeco Corp
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 Apeco Corp filed Critical Apeco Corp
Priority to US00245527A priority Critical patent/US3815990A/en
Priority to FR7310322A priority patent/FR2180693A1/fr
Priority to IT22126/73A priority patent/IT981623B/it
Priority to GB1495673A priority patent/GB1397851A/en
Priority to DE19732316547 priority patent/DE2316547B2/de
Priority to JP48043245A priority patent/JPS4928344A/ja
Application granted granted Critical
Publication of US3815990A publication Critical patent/US3815990A/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
    • G03G15/26—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 the charge pattern is obtained by projection of the entire image, i.e. whole-frame projection
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/62—Holders for the original
    • G03B27/6207—Holders for the original in copying cameras
    • G03B27/6221—Transparent copy platens
    • G03B27/6228—Platen covers

Definitions

  • ABSTRACT A high speed, compact, electrostatic copy machine mounting a roll of copy paper'from which copy sheets are cut, and including a triangular copy paper path and a dog leg optical path interfitted in a narrow cabinet frame.
  • a lens and mirror system in the optical path is shiftable so that originals of different sizes can be copied on one size of copy sheet.
  • the original is flash illuminated by a xenon or flash tube lamp under the control of a trigger switch in the copy paper path so that images are produced without stopping the copy sheet.
  • a control circuit holds copy paper in standby position adjacent the exposing station, and operates a document feeding unit to feed and hold originals adjacent the exposure window and deliver them in timed relation to the exposure window thereby initiating copy paper movement and exposure. lnterlock, automatic clearing delay, and jam detection switches are provided.
  • This invention relates generally to document copying machines of the smaller, so-called office type and more specifically concerns a high speed electrostatic copy machine.
  • a related object is to provide a machine of the above character which possesses the other normal requirements of an office copier, i.e., the ability to copy legal size as well as letterhead size sheets, having provision to copy bound or stapled materials as well as single sheets, and permitting the selection of a desired number of multiple copies from the same original.
  • Another object is to provide a machine as characterized above which feeds copy paper from a roll supply and embodies a fast acting paper cutter with interlocks for facilitating rapid cycling.
  • a further object is to provide a machine of the above type which includes safeguards for avoiding serious paper jams a particularly critical matter for a high speed machine.
  • FIG. 1 is a fragmentary perspective of a machine embodying the invention
  • FIGS. 2a and 2b are complementary enlarged fragmentary plans of the control panel on the FIG. 1 machine;
  • FIG. 3 is an enlarged section taken approximately along the line 33 in FIG. 1;
  • FIG. 4 is a fragmentary perspective of a sub-frame slid outwardly of the machine of FIG. 1;
  • FIG. 5 is a fragmentary, slightly enlarged perspective showing details of the structure on the sub-frame of FIG. 4;
  • FIG. 6 is a fragmentary perspective from approximately the same angle as FIG. 4 showing some internal drive elements of the machine in FIG. 1;
  • FIG. 7 is a fragmentary perspective similar to FIG. 6 showing another portion of the structure of the machine in FIG. 1;
  • FIG. 8 is an enlarged section taken approximately along the line 88 in FIG. 7;
  • FIG. 9 is a fragmentary perspective, somewhat enlarged, showing another portion of the structure embodied in the machine of FIG. 1;
  • FIG. 10 is a fragmentary elevation of the structure appearing in FIG. 9;
  • FIG. 11 is a fragmenatary section taken approximately along the line 11-11 in FIG. 3;
  • FIG. 12 is a slightly enlarged section taken approximately along the line 1212 in FIG. I1;
  • FIG. 13 is an enlarged section taken approximately along the line l313 in FIG. 5;
  • FIG. 14 is a fragmentary section taken approximately along the line l4l4 in FIG. 13;
  • FIG. 15 is a slightly enlarged fragmentary perspective of a portion of the structure shown in FIG. 13;
  • FIG. 16 is a fragmentary perspective showing still another portion of the structure of the machine in FIG. 1;
  • FIG. 17 is a slightly enlarged section taken approximately along the line 17-17 in FIG. 16;
  • FIG. 18 is a fragmentary perspective showing an attachment mounted on the machine of FIG. 1;
  • FIG. 19 is a fragmentary section, slightly enlarged, taken approximately along the line l919 in FIG. 18;
  • FIG. 20 is a fragmentary perspective showing yet another attachment mounted on the machine of FIG. 1;
  • FIG. 21 is a slightly enlarged fragmentary section taken approximately along the line 2121 in FIG. 20;
  • FIG. 22 is a slightly enlarged fragmentary section taken approximately along the line 2222 in FIG. 11;
  • FIGS. 230 through 23e are schematic diagrams of the control system utilized in the machine of FIG. 1.
  • FIGS. 1-3 there is shown a copy machine 10 embodying the invention and including a generally rectangular cabinet frame 12 having hinged front access doors 13, a top front operators panel 14, and a document receiving and feeding unit 15 which overlies an exposure window 16 at one top end of the frame 12.
  • the machine 10 is designed to cooperate with a copy sheet collator 17a in a manner to be referred to below.
  • the machine 10 is an electrostatic printer utilizing copy paper in the form of a roll 17 and including a knife assembly 18 for severing copy paper sheets from the roll 17, a corona or static charging unit 19, an exposing station 20, a developing station 21, a drying station 22, and a lens and mirror system 23 establishing an optical path 24 for focusing the image of a document at the window 16 onto a copy paper sheet in the exposing station 20.
  • the electrostatic system employed is that utilizing coated paper which is electrically charged, exposed to intense light which alters the charge in a pattern reflecting the light pattern received, surface flooded with a colloidal suspension of charged pigmented particles in a volatile dielectric vehicle that adheres to the paper in accordance with the established charge pattern, and then dried to set the pigment and drive off the volatile elements of the developer carrier liquid.
  • the machine is also of the flash illumination type, employing a pair of electronic flash or xenon tubes 25 in reflectors 26 for intensely but very briefly illuminating the exposure window 16 (see also FIG. 1 l
  • the use of flash lamps 25 makes it possible to expose a copy paper sheet without halting the movement of that sheet through the exposing station 20, the originals and copy sheets move in the direction of their narrowest dimension 8 /2 inches being the common U.S. standard, and the lamps 25 are positioned in planes perpendicular to the copy paper and are spaced the long dimension of the documents being copied, so as not to widen the machine, with one lamp 25 being positioned at each document end to give even illumination.
  • a particularly compact machine is achieved by arranging the stations -22 and associated copy paper drive elements to define a generally vertical triangular copy paper path having a long substantially vertical drying leg constituting the station 22, a bottom substantially horizontal development leg constituting the station 21 and an inclined charging and exposing leg constituting the station 20, and having the optical path 24 define a dog leg which permits mounting the copy paper roll 17 in the angle of the optical path between the optical path and the copy paper path.
  • the parts thus fit together with a minimum of wasted space, as can be best seen in FIG.
  • a flat exposing station 20 is positioned for receiving an image from the relatively simple optical system 23
  • a horizontal development station 21 is obtained which is well suited for utilizing liquid developer
  • the long dimension of the cabinet frame 12 is utilized for obtaining the relatively long, straight drying station 22 which is particularly important for achieving adequate drying when copies are moved at high speed through the machine. It will also be apparent that this described disposition permits a large copy paper roll 17 to be utilized without increasing the overall size of the cabinet frame 12.
  • a power supply 27 for the flash lamps is conveniently housed in a compartment 28 at one lower corner of the frame 12.
  • the knife assembly 18, a rack 31 for the copy paper roll 17, and pairs of feed rollers 32, dispensing rollers 33 and exit rollers 34, parts of the copy paper path drive elements, are all mounted on a drawer-like sub-frame 35 supported on slides 36 for movement outwardly of the cabinet frame 12 when the doors 13 are opened (see FIGS. 3-5).
  • the sub-frame 35 includes side plates 37 supporting the rack 31, so that the roll 17 can be simply dropped into place, and journalling the pairs of rollers 32-34.
  • a drag plate 38 pivoted in the side plates 37 rests on the roll 17.
  • the paper web from the roll 17 passes over an idler roll 39, between guide bars 41 supporting a switch 42 which detects when the paper supply runs out and illuminates, in that event, a signal lamp 43 on the control panel 14, into the nip of the feed rollers 32, through the knife assembly 18, around guide members 44, between the nip of the dispensing rollers 33, between plates 45 supporting a jam switch 46 and a paper stop switch 47, and into the nip of the exit rollers 34.
  • the roller pairs are driven by a motor 48, constantly energized while the machine is in operation, mounted on the sub-frame 35 and coupled to the rollers 32-34 by a belt 49.
  • the exit rollers 34 are constantly driven, and electrically operated clutches 51 and 52, respectively, selectively couple the rollers 32 and 33 to the motor 48.
  • the stop switch 47 disengages the clutches 51, 52 when operated by the leading edge of the paper web, and the switch 47 is adjustably mounted (see FIG. 3) so that the web is stopped with the leading edge 8% inches from the cutting line of the knife assembly 18.
  • the knife assembly 18 is actuated and the clutches 51, 52 engaged to feed the severed copy sheet to the exit rollers 34 and, at the same time, to feed the new leading edge of the web out to the stop switch 47. If the jam switch 46 is not operated by thecopy paper within a timed interval measured from engagement of the clutches 51, 52, which would be indicative of a paper jam or improper feeding, the paper drive is interrupted.
  • the copy paper sheet When exiting from the charging unit 19, the copy paper sheet engages a flash trigger switch 65 mounted on the chamber 57 just ahead of the exposing area of the station 20.
  • operation of the switch 65 with the leading edge of the copy paper sheet is effective to arm the charging circuit for the flash lamps 25 and, when the trailing edge of the sheets clears and restores the switch 65, the flash lamps are fired to project for a few microseconds an intense image on the still traveling copy sheet.
  • the copy sheet now bearing the latent electrostatic image, is engaged and turned around a drum 66 by a plurality of belts 67 mounted on rolls 68.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Paper Feeding For Electrophotography (AREA)
  • Collation Of Sheets And Webs (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
US00245527A 1972-04-19 1972-04-19 High speed copy machine Expired - Lifetime US3815990A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US00245527A US3815990A (en) 1972-04-19 1972-04-19 High speed copy machine
FR7310322A FR2180693A1 (ja) 1972-04-19 1973-03-22
IT22126/73A IT981623B (it) 1972-04-19 1973-03-26 Macchina per fotocopie funzionan te ad alta velocita
GB1495673A GB1397851A (en) 1972-04-19 1973-03-28 High speed copy machine
DE19732316547 DE2316547B2 (de) 1972-04-19 1973-04-03 Elektrostatisches kopiergeraet mit einer vorratsrolle fotoleitfaehigen kopierpapiers
JP48043245A JPS4928344A (ja) 1972-04-19 1973-04-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00245527A US3815990A (en) 1972-04-19 1972-04-19 High speed copy machine

Publications (1)

Publication Number Publication Date
US3815990A true US3815990A (en) 1974-06-11

Family

ID=22927037

Family Applications (1)

Application Number Title Priority Date Filing Date
US00245527A Expired - Lifetime US3815990A (en) 1972-04-19 1972-04-19 High speed copy machine

Country Status (6)

Country Link
US (1) US3815990A (ja)
JP (1) JPS4928344A (ja)
DE (1) DE2316547B2 (ja)
FR (1) FR2180693A1 (ja)
GB (1) GB1397851A (ja)
IT (1) IT981623B (ja)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2550985A1 (de) * 1974-11-13 1976-05-26 Eastman Kodak Co Verfahren und vorrichtung zum nacheinanderfolgenden zufuehren der einzelnen blaetter einer mehrblaettrigen kopiervorlage zu einer belichtungsplatte eines kopiergeraets
US4043665A (en) * 1975-03-26 1977-08-23 Xerox Corporation Copier document handler
US4134672A (en) * 1976-03-30 1979-01-16 Eastman Kodak Company Copier finisher for an electrographic reproducing device
US4184765A (en) * 1977-04-07 1980-01-22 Oce-Van Der Grinten N.V. Copying apparatus with device for transporting sheetlike originals yet covering various originals for exposure
US4264187A (en) * 1979-05-14 1981-04-28 International Business Machines Corporation Document handler
US4340285A (en) * 1980-07-17 1982-07-20 Clarke George A Receptacle attachment for cameras
US4449811A (en) * 1982-03-08 1984-05-22 The Mead Corporation Platen cover
US4699034A (en) * 1983-03-04 1987-10-13 Ricoh Company, Ltd. Roll paper handling apparatus
US4924256A (en) * 1985-07-19 1990-05-08 Konishiroku Photo Industry Co. Ltd. Slit exposure type color image forming apparatus
US5011093A (en) * 1990-03-14 1991-04-30 Xerox Corporation Deflectable media guides for assisting in media transport
US5060880A (en) * 1990-03-14 1991-10-29 Xerox Corporation Apparatus for automatically spooling output media from an electrographic printer
US5212359A (en) * 1992-02-03 1993-05-18 Eastman Kodak Company Multiple interface safety switch actuating mechanism
US5270731A (en) * 1991-08-23 1993-12-14 Eastman Kodak Company Laser thermal printer with positive air flow
US5692230A (en) * 1995-07-31 1997-11-25 Mita Industrial Co., Ltd. Image forming apparatus
US6032004A (en) * 1998-01-08 2000-02-29 Xerox Corporation Integral safety interlock latch mechanism

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4264188A (en) 1978-05-31 1981-04-28 Canon Kabushiki Kaisha Control for multiple-mode copying apparatus
DE2954567C2 (de) * 1978-05-31 1995-04-06 Canon Kk Kopiergerät mit einer Vorlagenfördereinrichtung
US4823963A (en) * 1988-03-11 1989-04-25 Ozalid Corp. Tray for organizing originals in a photocopy machine

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3425777A (en) * 1966-10-17 1969-02-04 Dennison Mfg Co Photocopier cycling apparatus
US3463584A (en) * 1963-12-06 1969-08-26 Olivetti & Co Spa Photocopying machine
US3502407A (en) * 1967-07-26 1970-03-24 Addressograph Multigraph Pneumatic delivery device
US3535038A (en) * 1967-06-08 1970-10-20 Agfa Gevaert Nv Apparatus for exposing light-sensitive copying material
US3536401A (en) * 1968-04-22 1970-10-27 Polaroid Corp Paper transport system
US3564960A (en) * 1969-04-18 1971-02-23 Gaf Corp Automatic copy machine copy paper length error compensating system
US3600083A (en) * 1969-02-14 1971-08-17 Rca Corp Electrostatic printing system employing a replaceable cartridge to provide a supply of a recording element and processing means therefor
US3677632A (en) * 1970-09-10 1972-07-18 Eastman Kodak Co Environment control device for electrophotographic apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3463584A (en) * 1963-12-06 1969-08-26 Olivetti & Co Spa Photocopying machine
US3425777A (en) * 1966-10-17 1969-02-04 Dennison Mfg Co Photocopier cycling apparatus
US3535038A (en) * 1967-06-08 1970-10-20 Agfa Gevaert Nv Apparatus for exposing light-sensitive copying material
US3502407A (en) * 1967-07-26 1970-03-24 Addressograph Multigraph Pneumatic delivery device
US3536401A (en) * 1968-04-22 1970-10-27 Polaroid Corp Paper transport system
US3600083A (en) * 1969-02-14 1971-08-17 Rca Corp Electrostatic printing system employing a replaceable cartridge to provide a supply of a recording element and processing means therefor
US3564960A (en) * 1969-04-18 1971-02-23 Gaf Corp Automatic copy machine copy paper length error compensating system
US3677632A (en) * 1970-09-10 1972-07-18 Eastman Kodak Co Environment control device for electrophotographic apparatus

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2550985A1 (de) * 1974-11-13 1976-05-26 Eastman Kodak Co Verfahren und vorrichtung zum nacheinanderfolgenden zufuehren der einzelnen blaetter einer mehrblaettrigen kopiervorlage zu einer belichtungsplatte eines kopiergeraets
US4043665A (en) * 1975-03-26 1977-08-23 Xerox Corporation Copier document handler
US4134672A (en) * 1976-03-30 1979-01-16 Eastman Kodak Company Copier finisher for an electrographic reproducing device
US4184765A (en) * 1977-04-07 1980-01-22 Oce-Van Der Grinten N.V. Copying apparatus with device for transporting sheetlike originals yet covering various originals for exposure
US4264187A (en) * 1979-05-14 1981-04-28 International Business Machines Corporation Document handler
US4340285A (en) * 1980-07-17 1982-07-20 Clarke George A Receptacle attachment for cameras
US4449811A (en) * 1982-03-08 1984-05-22 The Mead Corporation Platen cover
US4699034A (en) * 1983-03-04 1987-10-13 Ricoh Company, Ltd. Roll paper handling apparatus
US4924256A (en) * 1985-07-19 1990-05-08 Konishiroku Photo Industry Co. Ltd. Slit exposure type color image forming apparatus
US5011093A (en) * 1990-03-14 1991-04-30 Xerox Corporation Deflectable media guides for assisting in media transport
US5060880A (en) * 1990-03-14 1991-10-29 Xerox Corporation Apparatus for automatically spooling output media from an electrographic printer
US5270731A (en) * 1991-08-23 1993-12-14 Eastman Kodak Company Laser thermal printer with positive air flow
US5212359A (en) * 1992-02-03 1993-05-18 Eastman Kodak Company Multiple interface safety switch actuating mechanism
US5692230A (en) * 1995-07-31 1997-11-25 Mita Industrial Co., Ltd. Image forming apparatus
US6032004A (en) * 1998-01-08 2000-02-29 Xerox Corporation Integral safety interlock latch mechanism

Also Published As

Publication number Publication date
FR2180693A1 (ja) 1973-11-30
IT981623B (it) 1974-10-10
JPS4928344A (ja) 1974-03-13
GB1397851A (en) 1975-06-18
DE2316547A1 (de) 1973-10-31
DE2316547B2 (de) 1977-03-03

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