JPS5521052A - Variable power copying machine - Google Patents
Variable power copying machineInfo
- Publication number
- JPS5521052A JPS5521052A JP9369278A JP9369278A JPS5521052A JP S5521052 A JPS5521052 A JP S5521052A JP 9369278 A JP9369278 A JP 9369278A JP 9369278 A JP9369278 A JP 9369278A JP S5521052 A JPS5521052 A JP S5521052A
- Authority
- JP
- Japan
- Prior art keywords
- image
- original
- variable power
- paper
- length
- 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.)
- Pending
Links
Landscapes
- Control Or Security For Electrophotography (AREA)
- Holders For Sensitive Materials And Originals (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Variable Magnification In Projection-Type Copying Machines (AREA)
Abstract
PURPOSE:To achieve variable power copying automatically by determining the variable power ratio in a control device on the basis of paper and turning the image, by providing a device to detect the length of each side of the original on an original platen and the length of each side of paper, and a rotating member to convert the image 90 deg. around the optical axis. CONSTITUTION:The original 4 on a contact glass 2 is exposed with an exposure lamp 5, and the image is introduced onto a photosensitive belt 12 by way of first mirror 6, zoom lens 7, trapezoidal prism 8, second mirror 9, third mirror 10, and a latent image is fofmed. The trapezoidal prism 8 can rotate the exit image 90 deg. around an optical axis 25 with respect to the incident image by means of image direction indication dial 20. The length of each side of the original 4 on the glass 2 is measured by cursors 28, 29, and the length of each side of paper 16 is measured, for example, in a cassette 14. A control device 32 determines the magnification of zoom lens 7 according to the size of the original 4, on the basis of the size of the paper 16, and the trapezoidal prism 8 is rotated with respect to the indicated position of the image direction indication dial 20, so that variable power copying may be performed automatically.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9369278A JPS5521052A (en) | 1978-08-02 | 1978-08-02 | Variable power copying machine |
US06/059,082 US4277163A (en) | 1978-07-21 | 1979-07-19 | Variable magnification electrostatic copying machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9369278A JPS5521052A (en) | 1978-08-02 | 1978-08-02 | Variable power copying machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5521052A true JPS5521052A (en) | 1980-02-14 |
Family
ID=14089448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9369278A Pending JPS5521052A (en) | 1978-07-21 | 1978-08-02 | Variable power copying machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5521052A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2487533A1 (en) * | 1980-07-25 | 1982-01-29 | Triumph Adler Buero Inf | Copying machine using optical fibres - uses row of ends of fibre having different length at image side from original side to permit change scale |
EP0059083A2 (en) * | 1981-02-23 | 1982-09-01 | Xerox Corporation | Electrophotographic printing machine and method |
JPS5835563A (en) * | 1981-08-26 | 1983-03-02 | Canon Inc | Copying device |
JPS5854358A (en) * | 1981-09-26 | 1983-03-31 | Canon Inc | Variable magnification copying device |
JPS597840U (en) * | 1982-07-07 | 1984-01-19 | 井上エムテ−ピ−株式会社 | Sound insulation damping material |
JPS5999459A (en) * | 1982-11-29 | 1984-06-08 | Minolta Camera Co Ltd | Setter for copying magnification |
JPS60151628A (en) * | 1984-01-19 | 1985-08-09 | Fuji Xerox Co Ltd | Copy size selecting device |
JPS60162238A (en) * | 1984-01-31 | 1985-08-24 | Sharp Corp | Magnification setting method of variable power copying machine |
JPS61130929U (en) * | 1985-01-31 | 1986-08-15 | ||
JPH02306267A (en) * | 1989-11-28 | 1990-12-19 | Minolta Camera Co Ltd | Image forming device |
JPH02306266A (en) * | 1989-11-28 | 1990-12-19 | Minolta Camera Co Ltd | Image forming device |
-
1978
- 1978-08-02 JP JP9369278A patent/JPS5521052A/en active Pending
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2487533A1 (en) * | 1980-07-25 | 1982-01-29 | Triumph Adler Buero Inf | Copying machine using optical fibres - uses row of ends of fibre having different length at image side from original side to permit change scale |
EP0059083A2 (en) * | 1981-02-23 | 1982-09-01 | Xerox Corporation | Electrophotographic printing machine and method |
EP0059083A3 (en) * | 1981-02-23 | 1982-12-15 | Xerox Corporation | Electrophotographic printing machine and method |
JPS5835563A (en) * | 1981-08-26 | 1983-03-02 | Canon Inc | Copying device |
USRE35274E (en) * | 1981-08-26 | 1996-06-18 | Canon Kabushiki Kaisha | Variable magnification copying machine |
JPS5854358A (en) * | 1981-09-26 | 1983-03-31 | Canon Inc | Variable magnification copying device |
JPS597840U (en) * | 1982-07-07 | 1984-01-19 | 井上エムテ−ピ−株式会社 | Sound insulation damping material |
JPS6331956Y2 (en) * | 1982-07-07 | 1988-08-25 | ||
JPH0579990B2 (en) * | 1982-11-29 | 1993-11-05 | Minolta Camera Kk | |
JPS5999459A (en) * | 1982-11-29 | 1984-06-08 | Minolta Camera Co Ltd | Setter for copying magnification |
JPS60151628A (en) * | 1984-01-19 | 1985-08-09 | Fuji Xerox Co Ltd | Copy size selecting device |
JPS60162238A (en) * | 1984-01-31 | 1985-08-24 | Sharp Corp | Magnification setting method of variable power copying machine |
JPH0432661Y2 (en) * | 1985-01-31 | 1992-08-06 | ||
JPS61130929U (en) * | 1985-01-31 | 1986-08-15 | ||
JPH02306266A (en) * | 1989-11-28 | 1990-12-19 | Minolta Camera Co Ltd | Image forming device |
JPH02306267A (en) * | 1989-11-28 | 1990-12-19 | Minolta Camera Co Ltd | Image forming device |
JPH0580668B2 (en) * | 1989-11-28 | 1993-11-09 | Minolta Camera Kk | |
JPH0580667B2 (en) * | 1989-11-28 | 1993-11-09 | Minolta Camera Kk |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5521052A (en) | Variable power copying machine | |
US4519694A (en) | Projection apparatus for automatic correction of non-uniform illuminance distribution in image area of imaging plane | |
JPS54143629A (en) | Copying apparatus having opticlal system for high speed copying | |
JPS57212406A (en) | Method and device for focusing | |
JPS56140361A (en) | Electrophotographic copier | |
JPS5474733A (en) | Positioning device for moving optical system of optical device of copying machines | |
JPS5687010A (en) | Variable magnification optical device | |
JPS5555364A (en) | Slit exposure optical system in electrophotographic copying machine | |
JPS59210433A (en) | Copying machine | |
JPH0530257B2 (en) | ||
JPS5652775A (en) | Magnification changing device for copying machine | |
JPS55142364A (en) | Copying apparatus | |
JPS54155846A (en) | Exposure optical system in variable power copying apparatus | |
JPS54159234A (en) | Addition exposure device of electrophotographic copier | |
JPS56155932A (en) | Picture forming device | |
JPS533218A (en) | Diaphragm device for variable magnification copier of slit exposure type | |
JPS54112643A (en) | Electrophotographic copying apparatus | |
JPS54155052A (en) | Variable power optical system for scan exposure type copying machine | |
GB1497077A (en) | Electrostatic copying apparatus | |
JPH0225511B2 (en) | ||
JPS5515119A (en) | Original checking device | |
JPS57111559A (en) | Exposing method of variable magnification type copier | |
JPS55126263A (en) | Variable magnification optical device | |
JPS5327024A (en) | Diaphragm device for slit exposure type copier | |
JPS55166666A (en) | Variable power copying apparatus |