Patent US5202324A successfully refreshed from Google Patents.
US4811047A
Expired / Lapsed
US
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Image forming apparatus with means for recognizing an original condition
Assignee: Canon Inc
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Filing: 1986-11-25
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Granted: 1989-03-07
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Expires: 2006-11-25
Abstract
Abstract A copying machine has exposure lamps for scanning an original, line sensors for recognizing an original pattern, an imaging lens, a blank exposure lamp to eliminate a black frame and a central black stripe of a reproduced image if the original is thick (i.e., book), and a controller with an MCU. The set condition and shape of the original are recognized and displayed to allow optimal image formation.
Inventors
- 👤 Masao Hosaka
- 👤 Shizuo Hasegawa
- 👤 Takashi Saito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:17
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/50; G03G15/5025; G03G15/04; G03G15/045; G03G15/047; G03G15/60; G03G15/043; G03G15/0435; G03G2215/00; G03G2215/00172; G03G2215/00177; G03G2215/00181; G03G2215/00185; G03G2215/00206; G03G2215/00282; G03G2215/04; G03G2215/0429; G03G2215/0431; G03G2215/0434; G03G2215/0436; G03G2215/0439; G03G2215/0448; G03G2215/0451; G03G2215/0468; G03G2215/047; G03G2215/0473
Claims Analysis
Total Claims: 69
Claim 1
Independent Claim
68 words
An image formation apparatus comprising: scanning means for exposure-scanning an original; imaging means for focusing an image of the original exposure-scanned by said scanning means onto a receiving member; recognizing means for recognizing a set condition of the original; and control means for controlling said imaging means in accordance with an output from said recognizing means wherein said control means corrects an optical axis of said imaging means.
Claim 2
Dependent Claim
68 words
An image formation apparatus comprising: scanning means for exposure-scanning an original; imaging means for focusing an image of the original exposure-scanned by said scanning means onto a receiving member; recognizing means for recognizing a set condition of the original; and control means for controlling said imaging means in accordance with an output from said recognizing means wherein said control means corrects an optical axis of said imaging means.
Claim 3
Dependent Claim
31 words
An image formation apparatus according to claim 1, wherein said imaging means includes a mirror for reflecting light from the original and said control means controls the inclination of the mirror.
Claim 4
Dependent Claim
25 words
An image formation apparatus according to claim 1, wherein said recognizing means detects the amount of the ramp of the original placed on the platen.
Claim 5
Dependent Claim
67 words
An image formation apparatus comprising: scanning means for exposure-scanning an original; imaging means for focusing an image of the original exposure-scanned by said scanning means onto a receiving member; recognizing means for recognizing a set condition of the original; and control means for controlling said imaging means in accordance with an output from said recognizing means wherein said recognizing means operates by means of said scanning means.
Claim 6
Dependent Claim
67 words
An image formation apparatus comprising: scanning means for exposure-scanning an original; imaging means for focusing an image of the original exposure-scanned by said scanning means onto a receiving member; recognizing means for recognizing a set condition of the original; and control means for controlling said imaging means in accordance with an output from said recognizing means wherein said recognizing means operates by means of said scanning means.
Claim 7
Dependent Claim
31 words
An image formation apparatus according to claim 4, wherein said imaging means includes a mirror for reflecting light from the original and said control means controls the inclination of the mirror.
Claim 8
Dependent Claim
25 words
An image formation apparatus according to claim 4, wherein said recognizing means detects the amount of the ramp of the original placed on the platen.
Claim 9
Dependent Claim
62 words
An image formation apparatus comprising: image forming means for exposure-scanning an original to form an image on a recording medium; erasing means for erasing the image formed by said image forming means; recognizing means for recognizing a shades formed by the original; and control means for controlling an operation of said erasing means in accordance with an output from said recognizing means.
Claim 10
Dependent Claim
62 words
An image formation apparatus comprising: image forming means for exposure-scanning an original to form an image on a recording medium; erasing means for erasing the image formed by said image forming means; recognizing means for recognizing a shades formed by the original; and control means for controlling an operation of said erasing means in accordance with an output from said recognizing means.
Claim 11
Dependent Claim
36 words
An image formation apparatus according to claim 7, wherein said image forming means forms the image on a photosensitive medium and said erasing means includes an array of light emitting means for exposing the photosensitive medium,
Claim 12
Dependent Claim
27 words
An image formation apparatus according to claim 7, wherein said control means controls said erasing means such that images outside the area of the original are erased.
Claim 13
Dependent Claim
21 words
An apparatus according to claim 7, wherein said recognizing means operates by means of the exposure-scanning by said image forming means.
Claim 14
Dependent Claim
18 words
An apparatus according to claim 7, wherein said recognizing means detects an edge or corner of the original.
Claim 15
Dependent Claim
52 words
An image formation apparatus comprising: scanning means for exposure-scanning an original; recognizing means for recognizing a set condition of the original during scanning by said scanning means; and display means for displaying a pattern of the original in accordance with an output from said recognizing means during scanning by said scanning means.
Claim 16
Dependent Claim
52 words
An image formation apparatus comprising: scanning means for exposure-scanning an original; recognizing means for recognizing a set condition of the original during scanning by said scanning means; and display means for displaying a pattern of the original in accordance with an output from said recognizing means during scanning by said scanning means.
Claim 17
Dependent Claim
16 words
An apparatus according to claim 12, wherein said display means displays an edge of the original.
Claim 18
Dependent Claim
53 words
An image formation apparatus comprising: scanning means for exposure-scanning an original; recognizing means for recognizing a set condition of the original during scanning by said scanning means; and display means for displaying a set condition of the original in accordance with an output from said recognizing means during scanning by said scanning means.
Claim 19
Dependent Claim
53 words
An image formation apparatus comprising: scanning means for exposure-scanning an original; recognizing means for recognizing a set condition of the original during scanning by said scanning means; and display means for displaying a set condition of the original in accordance with an output from said recognizing means during scanning by said scanning means.
Claim 20
Dependent Claim
38 words
An apparatus according to claim 14, further comprising a platen for supporting the original thereon, wherein said display means displays the contour of the original placed on the platen in order to display the position of the original.
Claim 21
Dependent Claim
47 words
An image formation apparatus comprising: means for exposure-scanning an original to form an image on a recording member; means for recognizing intensity information of the original; and means for adding specified information to a reproduced image of the original in accordance with output from said recognizing means.
Claim 22
Dependent Claim
47 words
An image formation apparatus comprising: means for exposure-scanning an original to form an image on a recording member; means for recognizing intensity information of the original; and means for adding specified information to a reproduced image of the original in accordance with output from said recognizing means.
Claim 23
Dependent Claim
36 words
An apparatus according to claim 10, wherein said adding means includes means for erasing the image formed by said image forming means, and for adding the specified information after erasing one portion of the formed image.
Claim 24
Dependent Claim
69 words
An image formation apparatus comprising: scanning means for exposure-scanning an original; means for changing magnification for reproduction of the original; recognizing means for recognizing a set condition of the original during scanning by said scanning means; and display means for displaying a pattern or reproduction position of the original corresponding to a reproduction magnification in accordance with an output from said recognizing means during scanning by said scanning means.
Claim 25
Dependent Claim
69 words
An image formation apparatus comprising: scanning means for exposure-scanning an original; means for changing magnification for reproduction of the original; recognizing means for recognizing a set condition of the original during scanning by said scanning means; and display means for displaying a pattern or reproduction position of the original corresponding to a reproduction magnification in accordance with an output from said recognizing means during scanning by said scanning means.
Claim 26
Dependent Claim
20 words
An apparatus according to claim 12, wherein said display means further displays the position in which the original is placed.
Claim 27
Dependent Claim
94 words
An image formation apparatus comprising: a platen for supporting an original thereon; scanning means for exposure-scanning the original placed on the platen; imaging means for focusing an image of the original exposure-scanned by said scanning means onto a receiving member; recognizing means for recognizing the position on the platen in which the original is placed; and control means for controlling said imaging means in accordance with an output from said recognizing means; said imaging means including a mirror for reflecting light from the original and said control means controlling the inclination of the mirror.
Claim 28
Dependent Claim
94 words
An image formation apparatus comprising: a platen for supporting an original thereon; scanning means for exposure-scanning the original placed on the platen; imaging means for focusing an image of the original exposure-scanned by said scanning means onto a receiving member; recognizing means for recognizing the position on the platen in which the original is placed; and control means for controlling said imaging means in accordance with an output from said recognizing means; said imaging means including a mirror for reflecting light from the original and said control means controlling the inclination of the mirror.
Claim 29
Dependent Claim
88 words
An image formation apparatus comprising: a platen for supporting an original thereon; scanning means for exposure-scanning the original placed on the platen; imaging means for focusing an image of the original exposure-scanned by said scanning means onto a receiving member; recognizing means for recognizing the position on the platen in which the original is placed; and control means for controlling said imaging means in accordance with an output from said recognizing means; said recognizing means detecting the amount of the ramp of the original placed on the platen.
Claim 30
Dependent Claim
88 words
An image formation apparatus comprising: a platen for supporting an original thereon; scanning means for exposure-scanning the original placed on the platen; imaging means for focusing an image of the original exposure-scanned by said scanning means onto a receiving member; recognizing means for recognizing the position on the platen in which the original is placed; and control means for controlling said imaging means in accordance with an output from said recognizing means; said recognizing means detecting the amount of the ramp of the original placed on the platen.
Claim 31
Dependent Claim
108 words
An image formation apparatus comprising: a platen for supporting an original thereon; scanning means for exposure-scanning the original placed on the platen; imaging means for focusing an image of the original exposure-scanned by said scanning means onto a receiving member; recognizing means for recognizing the position on the platen in which the original is placed; control means for controlling said imaging means in accordance with an output from said recognizing means; and means for reading an image of the original exposure-scanned by said scanning means and for generating an electric signal, wherein said recognizing means recognizes said position in response to the electric signal from said reading means.
Claim 32
Dependent Claim
108 words
An image formation apparatus comprising: a platen for supporting an original thereon; scanning means for exposure-scanning the original placed on the platen; imaging means for focusing an image of the original exposure-scanned by said scanning means onto a receiving member; recognizing means for recognizing the position on the platen in which the original is placed; control means for controlling said imaging means in accordance with an output from said recognizing means; and means for reading an image of the original exposure-scanned by said scanning means and for generating an electric signal, wherein said recognizing means recognizes said position in response to the electric signal from said reading means.
Claim 33
Dependent Claim
107 words
An image formation apparatus comprising: a platen for supporting an original thereon; scanning means for exposure-scanning the original placed on th platen; imaging means for focusing an image of the original exposure-scanned by said scanned means onto a receiving member; recognizing means for recognizing the position on the platen in which the original is placed; control means for controlling said imaging means in accordance with an output from said recognizing means; and means for generating an alarm indicating an invalid placing of the original when it is judged that the amount of a control operation by said control means to said imaging means exceeds a predetermined level.
Claim 34
Dependent Claim
107 words
An image formation apparatus comprising: a platen for supporting an original thereon; scanning means for exposure-scanning the original placed on th platen; imaging means for focusing an image of the original exposure-scanned by said scanned means onto a receiving member; recognizing means for recognizing the position on the platen in which the original is placed; control means for controlling said imaging means in accordance with an output from said recognizing means; and means for generating an alarm indicating an invalid placing of the original when it is judged that the amount of a control operation by said control means to said imaging means exceeds a predetermined level.
Claim 35
Dependent Claim
130 words
An image formation apparatus comprising: a platen for supporting an original thereon; a recording medium; scanning means for exposure-scanning the original placed on the platen; projecting means for projecting an image of the original exposure-scanned by said scanning means onto the recording medium; read means for reading the image of the original exposure-scanned by said scanning means and generating an electric signal; first recognizing means for recognizing the position on the platen in which the original is placed in response to the electric signal generated by said means; and second recognizing means for recognizing an image density of the original in response to the electric signal generated by said read means, wherein the electric signal generated by said read means is utilized commonly for said first and second recognizing means.
Claim 36
Dependent Claim
130 words
An image formation apparatus comprising: a platen for supporting an original thereon; a recording medium; scanning means for exposure-scanning the original placed on the platen; projecting means for projecting an image of the original exposure-scanned by said scanning means onto the recording medium; read means for reading the image of the original exposure-scanned by said scanning means and generating an electric signal; first recognizing means for recognizing the position on the platen in which the original is placed in response to the electric signal generated by said means; and second recognizing means for recognizing an image density of the original in response to the electric signal generated by said read means, wherein the electric signal generated by said read means is utilized commonly for said first and second recognizing means.
Claim 37
Dependent Claim
31 words
An apparatus according to claim 24, further comprising means for controlling the amount of exposure by said scanning means in accordance with the image density recognized by said second recognizing means.
Claim 38
Dependent Claim
129 words
An image formation apparatus comprising: a platen for supporting an original thereon; reading means for reading an image of the original on the platen by scanning the original and generating an electric signal, said reading means including an image sensor movable in synchronization with a scan of the original; image forming means for forming an image according to the original; first recognizing means for recognizing the position on the platen in which the original is placed in accordance with the electric signal generated by said reading means; and second recognizing means for recognizing an image density of the original in accordance with the electric signal generated by said reading means, wherein the electric signal generated by said reading means is utilized commonly for said first and second recognizing means.
Claim 39
Dependent Claim
129 words
An image formation apparatus comprising: a platen for supporting an original thereon; reading means for reading an image of the original on the platen by scanning the original and generating an electric signal, said reading means including an image sensor movable in synchronization with a scan of the original; image forming means for forming an image according to the original; first recognizing means for recognizing the position on the platen in which the original is placed in accordance with the electric signal generated by said reading means; and second recognizing means for recognizing an image density of the original in accordance with the electric signal generated by said reading means, wherein the electric signal generated by said reading means is utilized commonly for said first and second recognizing means.
Claim 40
Dependent Claim
32 words
An image formation apparatus according to claim 26, wherein said first recognizing means recognizes said position in response to of image densities of the areas inside the original and outside the original.
Claim 41
Dependent Claim
28 words
An image formation apparatus according to claim 26, further comprising means for controlling said image forming means in response to outputs from said first and second recognizing means.
Claim 42
Dependent Claim
46 words
An image formation apparatus according to claim 26, further comprising a photo-sensitive member and projection means for projecting the image of the original onto the photo-sensitive member, wherein said image forming means performs the image formation in response to the image projected onto the photo-sensitive member.
Claim 43
Dependent Claim
118 words
An image reading apparatus comprising: a platen for supporting an original thereon; reading means for reading an image of the original on the platen by scanning the original and generating an electric signal, said reading means including an image sensor movable in synchronization with a scan of the original; first recognizing means for recognizing the position on the platen in which the original is placed in accordance with the electric signal generated by said reading means; and second recognizing means for recognizing an image density of the original in accordance with the electric signal generated by said reading means. wherein the electric signal generated by said reading means is utilized commonly for said first and second recognizing means.
Claim 44
Dependent Claim
118 words
An image reading apparatus comprising: a platen for supporting an original thereon; reading means for reading an image of the original on the platen by scanning the original and generating an electric signal, said reading means including an image sensor movable in synchronization with a scan of the original; first recognizing means for recognizing the position on the platen in which the original is placed in accordance with the electric signal generated by said reading means; and second recognizing means for recognizing an image density of the original in accordance with the electric signal generated by said reading means. wherein the electric signal generated by said reading means is utilized commonly for said first and second recognizing means.
Claim 45
Dependent Claim
31 words
An image reading apparatus according to claim 30, wherein said first recognizing means recognizes said position in response to image densities of the areas inside the original and outside the original.
Claim 46
Dependent Claim
60 words
An image formation apparatus comprising: image forming means for exposure-scanning an original to form an image on a recording medium; erasing means for erasing the image formed by said image forming means; recognizing mans for recognizing whether the original is book-shaped; and control means for controlling said erasing means when the original is recognized as book-shaped by said recognizing means.
Claim 47
Dependent Claim
60 words
An image formation apparatus comprising: image forming means for exposure-scanning an original to form an image on a recording medium; erasing means for erasing the image formed by said image forming means; recognizing mans for recognizing whether the original is book-shaped; and control means for controlling said erasing means when the original is recognized as book-shaped by said recognizing means.
Claim 48
Dependent Claim
30 words
An image formation apparatus according to claim 32, wherein said control means controls said erasing means such that the image according to a center region of the original is erased.
Claim 49
Dependent Claim
29 words
An image formation apparatus according to claim 32, wherein said control means controls said erasing means such that the image according to edge regions of the original are erased.
Claim 50
Dependent Claim
33 words
An image formation apparatus according to claim 32, wherein said recognizing means includes means for detecting a density of the original and recognizes a book-shaped original in response to change in detected density.
Claim 51
Dependent Claim
105 words
An image forming apparatus comprising: a platen for supporting an original; scanning means for exposure-scanning the original on the platen; image forming means for forming an image of the original exposure-scanned by said scanned means onto a recording medium, said image forming means having reading means for reading the entire image of the original in a direction normal to the scan direction of the original and for generating an electric signal; and recognizing means for recognizing the shape of the original in response to the electric signal generated by said image forming means simultaneously with the scanning operation of the original during the image formation.
Claim 52
Dependent Claim
105 words
An image forming apparatus comprising: a platen for supporting an original; scanning means for exposure-scanning the original on the platen; image forming means for forming an image of the original exposure-scanned by said scanned means onto a recording medium, said image forming means having reading means for reading the entire image of the original in a direction normal to the scan direction of the original and for generating an electric signal; and recognizing means for recognizing the shape of the original in response to the electric signal generated by said image forming means simultaneously with the scanning operation of the original during the image formation.
Claim 53
Dependent Claim
21 words
An image forming apparatus according to claim 36, wherein said recognizing means recognizes a density of the image of the original.
Claim 54
Dependent Claim
24 words
An image forming apparatus according to claim 37, wherein said recognizing means recognizes the position on the platen in which the original is placed.
Claim 55
Dependent Claim
24 words
An image forming apparatus according to claim 36, wherein said recognizing means recognizes the position on the platen in which the original is placed.
Claim 56
Dependent Claim
19 words
An image forming apparatus according to claim 39, wherein said recognizing means recognizes a skew angle of the original.
Claim 57
Dependent Claim
29 words
An image forming apparatus according to claim 39, further comprising means for interrupting an image forming operation by said image forming means in response to said position recognizing means.
Claim 58
Dependent Claim
52 words
An image formation apparatus according to claim 41, wherein said control means interrupts the operation of said image forming means when it is decided, in accordance with the output from said recognizing means, that a part of the original is in an area other than the area where image formation is possible.
Claim 59
Dependent Claim
102 words
An image apparatus comprising: a platen for supporting an original; scanning means for exposure-scanning the original on the platen; projection means for projecting an image of the original exposure-scanned by said scanning means onto a recording medium; image forming means for visualizing the image projected by said projection means; reading means for reading the entire image of the original in a direction normal to the scanning direction of the original and generating an electric signal; and recognizing means for recognizing the position on the platen in which the original is placed in response to the electric signal generated by said reading means.
Claim 60
Dependent Claim
102 words
An image apparatus comprising: a platen for supporting an original; scanning means for exposure-scanning the original on the platen; projection means for projecting an image of the original exposure-scanned by said scanning means onto a recording medium; image forming means for visualizing the image projected by said projection means; reading means for reading the entire image of the original in a direction normal to the scanning direction of the original and generating an electric signal; and recognizing means for recognizing the position on the platen in which the original is placed in response to the electric signal generated by said reading means.
Claim 61
Dependent Claim
29 words
An image forming apparatus according to claim 43, further comprising means for detecting a density of the original in response to the electric signal generated by said reading means.
Claim 62
Dependent Claim
16 words
An image forming apparatus according to claim 43, wherein said reading means includes a line sensor.
Claim 63
Dependent Claim
18 words
An image forming apparatus according to claim 45, wherein said line sensor reads the original in one-to-one magnification.
Claim 64
Dependent Claim
29 words
An image forming apparatus according to claim 43, further comprising means for detecting the size of the original in response to the electric signal generated by said reading means.
Claim 65
Dependent Claim
34 words
An image forming apparatus according to claim 47, further comprising means for controlling a scanning distance of said scanning means in response to said size of the original detected by said size detection means.
Claim 66
Dependent Claim
87 words
An image forming apparatus comprising; a platen for supporting an original; scanning means for exposure-scanning the original on the platen; image forming means for forming an image of the original exposure-scanned by said scanning means onto a recording member, said image forming means having reading means for reading an image of the original and generating an electric signal; and display means for displaying at least one of a shape and a location condition of the original in response to the electric signal generated by said reading means.
Claim 67
Dependent Claim
87 words
An image forming apparatus comprising; a platen for supporting an original; scanning means for exposure-scanning the original on the platen; image forming means for forming an image of the original exposure-scanned by said scanning means onto a recording member, said image forming means having reading means for reading an image of the original and generating an electric signal; and display means for displaying at least one of a shape and a location condition of the original in response to the electric signal generated by said reading means.
Claim 68
Dependent Claim
27 words
An image forming apparatus according to claim 49, wherein said display means graphically displays at least one of the shape and the location condition of the original.
Claim 69
Dependent Claim
16 words
An image forming apparatus according to claim 49, wherein said reading means includes a line sensor.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-03-06 | 1992-09-05 | 1993-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-06 | 1996-09-05 | 1997-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-06 | 2000-09-05 | 2001-03-07 | $7700.00 | Window Closed / Lapsed |