US3661452A - Xerographic reproduction machine - Google Patents
Xerographic reproduction machine Download PDFInfo
- Publication number
- US3661452A US3661452A US731934A US3661452DA US3661452A US 3661452 A US3661452 A US 3661452A US 731934 A US731934 A US 731934A US 3661452D A US3661452D A US 3661452DA US 3661452 A US3661452 A US 3661452A
- Authority
- US
- United States
- Prior art keywords
- belt
- paper
- illumination device
- original
- latent image
- 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
Links
Images
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
- G03G15/22—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
- G03G15/263—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 using a reusable recording medium in form of a band
Abstract
A reproduction machine having a photoreceptor imaging medium in belt configuration which is exposed by a flash illumination system in timed relation to the feeding of sheets of copy paper prior to image transfer. The belt is arranged to be maintained flat during exposure and development with image transfer being effected along a curved presentation of the belt between the two flat sections of the belt.
Description
United States Patent Hewes et al.
1541 XEROGRAPHIC REPRODUCTION MACHINE [72] Inventors: Ellsworth D. Hewes, Rochester; Norbett H.
Kaupp, Newark, both of NY.
[73] As'signee: Xerox Corporation, Rochester, N.Y. 22 Filed: M'ay 24, 1968 [2i] Appl.No.: 731,934
52 us. c1 51 Int. Cl.
[58] Field olSearch..- ..355/3, 5, ll, 16,67
[56] References Cited UNITED STATES PATENTS 2,551,582 5/1951 Carlson ..355/10- 1151 3,661,452 1 51 May 9,1972
3,146,688 9/1964 Clark ..355/16 3,168,857 2/1965 Hutto 3,339,469 9/l967 McFarlane.
3,427,658 2/1969 Roberts ..355/l6 Primary Examiner-John M. Horan Attorney-Norman E. Schrader, James J. Ralabate and Bernard A. Chioma 1 1 ABSTltACT A reproduction machine having a photoreceptor imaging medium in belt configurationiwhich is exposed by a flash illumination system in timed relation to the feeding of sheets of copy paper prior to image transfer. The belt is arranged to be maintained flat during exposure and development with image transfer being effected along a curved presentation of the belt between the two flat sections of the belt.
5 Claims, 70 Drawing Figures PATENTEDMAY 9 I972 3,661,452
sum 01 OF 43 INVENTORS ELLSWORTH D. HEWES NORBETT H. KAUPP PATENTEDMAY 9:912 3,661,452
sum 02 [1F 43 LMP-5" INVENTORS ELLSWORTH Dl HEWES NORBETT H. KAUPP A TTORNEYS PATENTEDMAY 9:922 3,661,452
sum 030F113 INVENTORS ELLSWORTH o. HEWES BY NORBETT H. KAUPP IMIIIIII m M A rromvs rs PATENTEDMAY 9 I972 3,661,452
sum us of 43 lNVL'NTORS ELLSWORTH D. HEWES NORBETT H. KAUPP BY y... .A/M
ATTORNEYS PATENTEDHAY 94572 3,661,452
SHEET 05 0F 43 INVENTORS ELLSWORTH D. HEWES NORBETT H. KAUPP PATENTED AY 91912 I 3,661,452
3pm IU8UF 43 FIG. I I
' INVENTORS ELLSWORTH D. HEWES NORBETT H. KAUPP ATTORNEYS Pmmmm 91912 3.661.452
SHEET [19 [IF 43 IN VENTORS ELLSWORTH D. HEWES FIG. 13 B NORBETT H. KAUPP PATENTEDMAY 91972 3,661,452
sum 11 [1F 43 NORBETT H. KAUPP FIG. 15 BY 44 :5
yw w
ATTOR/VEKS PATENTEDMAY 9l972 3.561.452
' sum 12 0F 43 MM ,,.|HIIHIHIIHHIIH'I w INVENTORS ELLSWORTH D. HEWES NORBETT H. KAUPP F1616 BY 56mg ATTORNEYS PATENTEDMAY 9 I972 SHEET 13 [1F 43 INVENTORS ELLSWORTH D. HEWES B NORBETT H. KAUPP ynqq ATTORNEYS PATENTEDMAY 9:912 3.661.452
- INVENTORS EL LSWORTH D. HEWES NORBETT H. KAUPP FIG. 29 I BY 54 444W ATTORNEYS PATENTEDMAY 91912 3,561,452
DEGEES o- A 90 I80 270 ,0 SHUTDOWN 5+ SAMPLE} c- CLEAN secouos 0 L5 3.0 4.5
- INVENTORS' FIG. 3 4 ELLSWORTH D.HEWES NORBETT H. KAUPP ATTORNEYS
Claims (5)
1. In an electrostatic machine for reproducing copies of originals onto sheets of copy paper having a photoconductive plate in the form of a flexible belt, means for producing a uniform charge thereon, means for supporting and moving the belt at a predetermined rate and in a path having at least one section wherein the belt travels in a flat condition to define the exposure station therefor, an illumination device for illuminating an original in full frame when the device is in its operative condition and projecting the illuminated full frame area onto the belt at the exposure station to produce an electrostatic latent image of an original thereon, energizing means for activating the illumination device to its operative condition for a short period of time to effect flash exposure of the original in full frame while the belt moves, the time of each flash exposure being sufficiently short so as not to cause a blurred latent image, means for developing the latent image with toner particles, a paper supply, paper feed means for feeding individually sheets of paper from the paper supply and into contact with the belt at the transfer station therefor preparatory to the transfer of developed images thereon, the improvement including control means operatively connected to the energizing means and the paper feed means for actuating the latter in a predetermined timed relationship to activation of said illumination device by the energizing means for effecting the feed of sheets of paper in timed relation tO the production of corresponding latent images on the belt.
2. The machine of claim 1 including a registration mechanism interposed between the paper supply and the transfer station and including a member movable into the paper feed path to momentarily arrest and register the leading edge of a sheet of paper prior to the movement thereof to the transfer station, said control means being associated with the registration mechanism for actuating the member to release a sheet for movement in timed relation to activation of said illumination device.
3. In an electrostatic machine for reproducing copies of originals onto copy paper having a photoconductive plate in the form of an endless flexible belt, means for producing a charge thereon, means for supporting and moving the belt at a predetermined rate and in a continuous path having at least one section wherein the belt travels in a flat condition and which defines the exposure station for the machine, an illumination device for illuminating an original in full frame when the device is in its operative condition and projecting the illuminated full frame area onto the belt at the exposure station to produce an electrostatic latent image of an original thereon, means for developing the latent image with toner particles, an image transfer station, and paper feed means for moving individual sheets of paper into contact with the belt at the transfer station therefor in order to accomplish the transfer of developed images to sheets of paper, the improvement including energizing means for activating the illumination device to its operative condition for a short period of time to effect flash exposure of the original in full frame while the belt is in continuous movement, the time of the flash exposure being sufficiently short so as not to cause a blurred latent image, control means operatively connected to said energizing means and said paper feed means for effecting equally timed successive activations of the illumination device for producing multiple exposures of an original and for activating the paper feed means in the same timed relationship to each activation of the illumination device.
4. In an electrostatic machine for reproducing copies of originals onto copy paper having a photoconductive plate in the form of an endless flexible belt, means for producing a charge thereon, means for supporting and moving the belt at a predetermined rate and in a continuous path, an exposure station for the machine, an illumination device for illuminating an original in full frame when the device is in its operative condition and projecting the illuminated full frame area onto the belt at the exposure station to produce an electrostatic latent image of each original thereon, means for developing the latent image with toner particles, an image transfer station, a paper supply, and paper transport means for moving individual sheets of paper from the paper supply into contact with the belt at the transfer station therefor in order to accomplish the transfer of developed images thereon, and toner fixing means arranged for receiving the sheets after the transfer of developed images, the improvement wherein the transport means, the transfer station and the toner fixing means are arranged in a position so that paper movement occurs in substantially the same plane thereby effecting the movement of each sheet in substantially a straight path from the paper supply to the fixing means.
5. In an electrostatic machine for reproducing copies of originals onto copy paper having a photoconductive plate in the form of an endless flexible belt, means for producing a charge thereon, means for supporting and moving the belt at a predetermined rate and in a continuous path having at least one section wherein the belt travels in a flat condition and which defines the exposure station for the machine, an illumination device for illuminating an original in full frame when the device is in its operative condition and projecting the illUminated full frame area onto the belt at the exposure station to produce an electrostatic latent image of an original thereon, means for developing the latent image with toner particles, an image transfer station, and paper feed means for moving individual sheets of paper into contact with the belt at the transfer station therefor in order to accomplish the transfer of developed images to sheets of paper, the improvement including energizing means for activating the illumination device to its operative condition for a short period of time to effect flash exposure of the original in full frame while the belt is in continuous movement, the time of the flash exposure being sufficiently short so as not to cause a blurred latent image, control means operatively connected to said energizing means for effecting successive activations of the illumination device for producing multiple exposures of an original, said control means being operatively connected to the paper feed means for activating the paper feed means in timed relationship to activation of the illumination device while said activation of the illumination device is being effected.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US73193468A | 1968-05-24 | 1968-05-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3661452A true US3661452A (en) | 1972-05-09 |
Family
ID=24941504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US731934A Expired - Lifetime US3661452A (en) | 1968-05-24 | 1968-05-24 | Xerographic reproduction machine |
Country Status (10)
Country | Link |
---|---|
US (1) | US3661452A (en) |
BE (1) | BE733407A (en) |
CH (1) | CH491418A (en) |
DE (1) | DE1925398A1 (en) |
DK (1) | DK125257B (en) |
ES (1) | ES367613A1 (en) |
FR (1) | FR2009302A1 (en) |
GB (1) | GB1264406A (en) |
NL (2) | NL6907656A (en) |
PL (1) | PL80003B1 (en) |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3791732A (en) * | 1971-11-17 | 1974-02-12 | Gestetner Copiers Ltd | Electrostatic copier |
JPS49105539A (en) * | 1973-01-15 | 1974-10-05 | ||
US3851966A (en) * | 1972-12-11 | 1974-12-03 | Xerox Corp | Reproduction apparatus |
US3869203A (en) * | 1973-09-18 | 1975-03-04 | Xerox Corp | Color electrophotographic printing machine |
US3961849A (en) * | 1970-12-14 | 1976-06-08 | Xerox Corporation | Electrostatic printing machine |
US3967893A (en) * | 1974-04-29 | 1976-07-06 | Xerox Corporation | Illuminating apparatus |
US3976375A (en) * | 1972-12-30 | 1976-08-24 | Minolta Camera Kabushiki Kaisha | Electrostatic copying machine |
US3981576A (en) * | 1973-04-24 | 1976-09-21 | Canon Kabushiki Kaisha | Multicolor electrophotographic copier with liquid developing |
US3982832A (en) * | 1972-06-23 | 1976-09-28 | Rank Xerox Ltd. | Electrostatographic copying machines |
JPS51119229A (en) * | 1975-04-11 | 1976-10-19 | Minolta Camera Co Ltd | Electrophotography |
US4017170A (en) * | 1972-04-13 | 1977-04-12 | Canon Kabushiki Kaisha | Electrophotographic device |
US4025180A (en) * | 1973-10-30 | 1977-05-24 | Minolta Camera Kabushiki Kaisha | Transfer type electrophotographic copying apparatus |
FR2345748A1 (en) * | 1976-03-25 | 1977-10-21 | Pitney Bowes Inc | REPROGRAPHY MACHINE |
US4095890A (en) * | 1975-06-24 | 1978-06-20 | Oce-Van Der Grinten N.V. | Xerographic copying apparatus |
JPS5415751A (en) * | 1978-07-12 | 1979-02-05 | Minolta Camera Co Ltd | Start position controller in transfer type electrophotographic copier |
EP0029953A1 (en) * | 1979-12-03 | 1981-06-10 | International Business Machines Corporation | Electrophotographic copier including a belt photoconductor |
US4346985A (en) * | 1979-06-25 | 1982-08-31 | Xerox Corporation | Automatic development control |
US4396274A (en) * | 1979-12-03 | 1983-08-02 | International Business Machines Corporation | Electrophotographic copier configuration |
US4470693A (en) * | 1982-01-11 | 1984-09-11 | Pitney Bowes Inc. | Self-cleaning xerographic apparatus |
US4761671A (en) * | 1987-02-02 | 1988-08-02 | Eastman Kodak Company | Electrophotographic subprocess for apparatus using discharged area toning |
US4809032A (en) * | 1986-12-10 | 1989-02-28 | Kabushiki Kaisha Toshiba | Printing apparatus |
US4956676A (en) * | 1987-04-16 | 1990-09-11 | Kentek Information Systems, Inc. | Electrographic color printer/copier |
US5237340A (en) * | 1989-12-21 | 1993-08-17 | Texas Instruments Incorporated | Replaceable elements for xerographic printing process and method of operation |
US20020085245A1 (en) * | 2001-01-04 | 2002-07-04 | Mennie Douglas U. | Document feeding method and apparatus |
US20080304111A1 (en) * | 2007-05-10 | 2008-12-11 | L-1 Identity Solutions, Inc | Identification reader |
US11105366B2 (en) | 2018-06-12 | 2021-08-31 | Haydon Kerk Motion Solutions, Inc. | Long span lead screw assembly with anti-backlash nut and wear compensated load bearing element |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2551582A (en) * | 1943-08-27 | 1951-05-08 | Chester F Carlson | Method of printing and developing solvent images |
US3146688A (en) * | 1961-05-01 | 1964-09-01 | Xerox Corp | Xerographic machine |
US3168857A (en) * | 1961-05-01 | 1965-02-09 | Rca Corp | Electrostatic printing |
US3339469A (en) * | 1962-08-06 | 1967-09-05 | Sun Chemical Corp | Electrostatic printing apparatus |
US3427658A (en) * | 1966-05-06 | 1969-02-11 | Harris Intertype Corp | Electrophotographic apparatus and method |
-
1968
- 1968-05-24 US US731934A patent/US3661452A/en not_active Expired - Lifetime
-
1969
- 1969-05-19 DE DE19691925398 patent/DE1925398A1/en active Pending
- 1969-05-19 PL PL1969133694A patent/PL80003B1/pl unknown
- 1969-05-20 NL NL6907656A patent/NL6907656A/xx unknown
- 1969-05-21 BE BE733407D patent/BE733407A/xx not_active IP Right Cessation
- 1969-05-21 GB GB1264406D patent/GB1264406A/en not_active Expired
- 1969-05-22 DK DK279369AA patent/DK125257B/en unknown
- 1969-05-22 CH CH784569A patent/CH491418A/en not_active IP Right Cessation
- 1969-05-23 ES ES367613A patent/ES367613A1/en not_active Expired
- 1969-05-23 FR FR6917084A patent/FR2009302A1/fr active Pending
-
1981
- 1981-02-20 NL NL8100856A patent/NL8100856A/en active Search and Examination
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2551582A (en) * | 1943-08-27 | 1951-05-08 | Chester F Carlson | Method of printing and developing solvent images |
US3146688A (en) * | 1961-05-01 | 1964-09-01 | Xerox Corp | Xerographic machine |
US3168857A (en) * | 1961-05-01 | 1965-02-09 | Rca Corp | Electrostatic printing |
US3339469A (en) * | 1962-08-06 | 1967-09-05 | Sun Chemical Corp | Electrostatic printing apparatus |
US3427658A (en) * | 1966-05-06 | 1969-02-11 | Harris Intertype Corp | Electrophotographic apparatus and method |
Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3961849A (en) * | 1970-12-14 | 1976-06-08 | Xerox Corporation | Electrostatic printing machine |
US3791732A (en) * | 1971-11-17 | 1974-02-12 | Gestetner Copiers Ltd | Electrostatic copier |
US4017170A (en) * | 1972-04-13 | 1977-04-12 | Canon Kabushiki Kaisha | Electrophotographic device |
US3982832A (en) * | 1972-06-23 | 1976-09-28 | Rank Xerox Ltd. | Electrostatographic copying machines |
US3851966A (en) * | 1972-12-11 | 1974-12-03 | Xerox Corp | Reproduction apparatus |
US3976375A (en) * | 1972-12-30 | 1976-08-24 | Minolta Camera Kabushiki Kaisha | Electrostatic copying machine |
JPS49105539A (en) * | 1973-01-15 | 1974-10-05 | ||
US3860338A (en) * | 1973-01-15 | 1975-01-14 | Xerox Corp | Adjustable fadeout control |
JPS557583B2 (en) * | 1973-01-15 | 1980-02-26 | ||
US3981576A (en) * | 1973-04-24 | 1976-09-21 | Canon Kabushiki Kaisha | Multicolor electrophotographic copier with liquid developing |
US3869203A (en) * | 1973-09-18 | 1975-03-04 | Xerox Corp | Color electrophotographic printing machine |
US4025180A (en) * | 1973-10-30 | 1977-05-24 | Minolta Camera Kabushiki Kaisha | Transfer type electrophotographic copying apparatus |
US3967893A (en) * | 1974-04-29 | 1976-07-06 | Xerox Corporation | Illuminating apparatus |
JPS51119229A (en) * | 1975-04-11 | 1976-10-19 | Minolta Camera Co Ltd | Electrophotography |
JPS5615508B2 (en) * | 1975-04-11 | 1981-04-10 | ||
US4095890A (en) * | 1975-06-24 | 1978-06-20 | Oce-Van Der Grinten N.V. | Xerographic copying apparatus |
FR2345748A1 (en) * | 1976-03-25 | 1977-10-21 | Pitney Bowes Inc | REPROGRAPHY MACHINE |
US4084901A (en) * | 1976-03-25 | 1978-04-18 | Pitney-Bowes, Inc. | Copying machine |
JPS5415751A (en) * | 1978-07-12 | 1979-02-05 | Minolta Camera Co Ltd | Start position controller in transfer type electrophotographic copier |
JPS5542386B2 (en) * | 1978-07-12 | 1980-10-30 | ||
US4346985A (en) * | 1979-06-25 | 1982-08-31 | Xerox Corporation | Automatic development control |
EP0029953A1 (en) * | 1979-12-03 | 1981-06-10 | International Business Machines Corporation | Electrophotographic copier including a belt photoconductor |
US4396274A (en) * | 1979-12-03 | 1983-08-02 | International Business Machines Corporation | Electrophotographic copier configuration |
US4470693A (en) * | 1982-01-11 | 1984-09-11 | Pitney Bowes Inc. | Self-cleaning xerographic apparatus |
US4809032A (en) * | 1986-12-10 | 1989-02-28 | Kabushiki Kaisha Toshiba | Printing apparatus |
US4761671A (en) * | 1987-02-02 | 1988-08-02 | Eastman Kodak Company | Electrophotographic subprocess for apparatus using discharged area toning |
US4956676A (en) * | 1987-04-16 | 1990-09-11 | Kentek Information Systems, Inc. | Electrographic color printer/copier |
US5237340A (en) * | 1989-12-21 | 1993-08-17 | Texas Instruments Incorporated | Replaceable elements for xerographic printing process and method of operation |
US20020085245A1 (en) * | 2001-01-04 | 2002-07-04 | Mennie Douglas U. | Document feeding method and apparatus |
US6798899B2 (en) * | 2001-01-04 | 2004-09-28 | Cummins-Allison Corp. | Document feeding method and apparatus |
US20080304111A1 (en) * | 2007-05-10 | 2008-12-11 | L-1 Identity Solutions, Inc | Identification reader |
US8493630B2 (en) * | 2007-05-10 | 2013-07-23 | L-I Indentity Solutions, Inc. | Identification reader |
US9007664B2 (en) | 2007-05-10 | 2015-04-14 | Morphotrust Usa, Llc | Identification reader |
US11105366B2 (en) | 2018-06-12 | 2021-08-31 | Haydon Kerk Motion Solutions, Inc. | Long span lead screw assembly with anti-backlash nut and wear compensated load bearing element |
Also Published As
Publication number | Publication date |
---|---|
BE733407A (en) | 1969-11-21 |
ES367613A1 (en) | 1971-04-16 |
NL6907656A (en) | 1969-11-26 |
CH491418A (en) | 1970-05-31 |
NL8100856A (en) | 1981-07-01 |
PL80003B1 (en) | 1975-08-30 |
DE1925398A1 (en) | 1969-12-18 |
GB1264406A (en) | 1972-02-23 |
FR2009302A1 (en) | 1970-01-30 |
DK125257B (en) | 1973-01-22 |
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