US4825250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image forming apparatus including exposure scanning means
Assignee: Canon Inc
•
Filing: 1987-08-17
•
Granted: 1989-04-25
•
Expires: 2007-08-17
Abstract
Abstract There is an image forming apparatus in which images of a plurality of originals set on the original plate glass are individually exposed, scanned and read, and the read images are synthesized and recorded at arbitrary positions on a recording paper. This apparatus also has a device to record the images on the front and back surfaces of the recording paper. The synthetic recording and the front and back surface recording can be arbitrarily switched and selected. This apparatus is provided with a trimming function to erase unnecessary image portions of the images, a masking function to prevent the shaded portions from being recorded on the paper, and an image shift function to adjust the synthesizing positions of the images on the recording paper for every image. In the serial page copy mode adapted for book images, the masking function is automatically selected and the recording positions on the front and back surfaces of the recording paper are aligned to either one of the right and left sides of the paper, so that the binding margins can be secured on one selected side of the paper. The masking function is released when the serial page copy mode is released.
Inventors
- 👤 Masanori Miyata
- 👤 Yutaka Komiya
- 👤 Shinichi Nakamura
- 👤 Masayuki Hirose
- 👤 Toshihiko Mori
- 👤 Tomobumi Nakayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:53
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/50; G03G15/04; G03G15/04018; G03G15/36; G03G2215/00; G03G2215/04; G03G2215/0426; G03G2215/0429; G03G2215/0468; G03G2215/047; G03G2215/0473; G03G2215/048; G03G2215/0482
Claims Analysis
Total Claims: 52
Claim 1
Independent Claim
205 words
An image forming apparatus comprising: a platen for placing an original thereon; means for exposure-scanning an image of the original placed on said platen, wherein said exposure-scanning means scans a first area on said platen through a first scanning operation, and then scans a second area on said platen through a second scanning operation; image forming means for forming on a sheet an image of an original exposed by said exposure scanning means upon the first scanning operation, and then for automatically forming on the same sheet an image of an original exposed by said exposure scanning means upon the second scanning operation, wherein said image forming means operates in a multi-mode for disposing both of the images formed upon the first scanning operation and upon the second scanning operation on the same surface of the same sheet and operates in a two-sided mode for disposing each of the images formed upon the first and second scanning operations, on different surfaces of the same sheet; and selecting means for prohibiting said image forming means from operating in the two-sided mode when the multi-mode has been selected and for prohibiting said image forming means from operating in the mutli-mode when the two-sided mode has been selected.
Claim 2
Dependent Claim
205 words
An image forming apparatus comprising: a platen for placing an original thereon; means for exposure-scanning an image of the original placed on said platen, wherein said exposure-scanning means scans a first area on said platen through a first scanning operation, and then scans a second area on said platen through a second scanning operation; image forming means for forming on a sheet an image of an original exposed by said exposure scanning means upon the first scanning operation, and then for automatically forming on the same sheet an image of an original exposed by said exposure scanning means upon the second scanning operation, wherein said image forming means operates in a multi-mode for disposing both of the images formed upon the first scanning operation and upon the second scanning operation on the same surface of the same sheet and operates in a two-sided mode for disposing each of the images formed upon the first and second scanning operations, on different surfaces of the same sheet; and selecting means for prohibiting said image forming means from operating in the two-sided mode when the multi-mode has been selected and for prohibiting said image forming means from operating in the mutli-mode when the two-sided mode has been selected.
Claim 3
Dependent Claim
43 words
An image forming apparatus according to claim 1, wherein both the image of the original exposed upon the first scanning operation and the image of the original exposed upon the second scanning operation are included in the same original placed on said platen.
Claim 4
Dependent Claim
43 words
An image forming apparatus according to claim 1, wherein the image of the original exposed upon the first scanning operation and the image of the original exposed upon the second scanning operation are included in respective originals placed on said platen in parallel.
Claim 5
Dependent Claim
31 words
An image forming apparatus according to claim 1, wherein said exposure-scanning means controls the amount of scanning of the first scanning operation in association with the size of an exposed original.
Claim 6
Dependent Claim
44 words
An image forming apparatus according to claim 1, further comprising feeding means for feeding the sheet, wherein said feeding means controls a feeding timing of a sheet for the second scanning operation in association with the amount of scanning of the first scanning operation.
Claim 7
Dependent Claim
68 words
An image forming apparatus according to claim 1, further comprising area designating means for designating a desired area of an original placed on said platen, wherein said image forming means forms an image of an area dsignated by the area designating means in an image forming mode different from an image forming mode in which an image except for the image corresponding to the designated area is formed.
Claim 8
Dependent Claim
22 words
An image forming apparatus according to claim 6, wherein said image forming means trims and image-forms an image of the designated area.
Claim 9
Dependent Claim
32 words
An image forming apparatus according to claim 6, wherein said area designating means designates an area of the original in at least one first area and said second area on said platen.
Claim 10
Dependent Claim
39 words
An image forming apparatus according to claim 1, further comprising shifting means for respectively and independently shifting image forming positions of an image exposed upon the first scanning operation and of an image exposed upon the second scanning operation.
Claim 11
Dependent Claim
19 words
An image forming apparatus according to claim 9, further comprising input means for inputting a desired quantity of shifting.
Claim 12
Dependent Claim
38 words
An image forming apparatus according to claim 1, further comprising magnification changing means for respectively and independently changing magnifications of an image exposed upon the first scanning operation and of an image exposed upon the second scanning operation.
Claim 13
Dependent Claim
17 words
An image forming apparatus according to claim 11, further comprising input means for inputting a desired magnification.
Claim 14
Dependent Claim
212 words
An image forming apparatus comprising: a platen for placing an original thereon; means for exposure-scanning an image of the original placed on the platen, wherein said exposure-scanning means scans a first area on said platen through a first scanning operation, and then scans a second area on said platen through a second scanning operation; area designating means for designating a desired area of the original in at least one of said first and second areas on said platen; and image forming means for forming an image of an original exposed by said exposure-scanning means upon the first scanning operation, and then for automatically forming an image of an original exposed by said exposure-scanning means upon the second scanning operation, wherein said image forming means includes erasing means for erasing an image except for an image corresponding to the area designated by said area designating means; wherein when an area designated by said area designating means is within the first area on said platen, said image forming means actuates the operation of said erasing means in association with the designated area upon the first scanning operation of said exposure-scanning means, and prohibits the operation of said erasing means in association with the designated area upon the second scanning operation of said exposure-scanning means.
Claim 15
Dependent Claim
212 words
An image forming apparatus comprising: a platen for placing an original thereon; means for exposure-scanning an image of the original placed on the platen, wherein said exposure-scanning means scans a first area on said platen through a first scanning operation, and then scans a second area on said platen through a second scanning operation; area designating means for designating a desired area of the original in at least one of said first and second areas on said platen; and image forming means for forming an image of an original exposed by said exposure-scanning means upon the first scanning operation, and then for automatically forming an image of an original exposed by said exposure-scanning means upon the second scanning operation, wherein said image forming means includes erasing means for erasing an image except for an image corresponding to the area designated by said area designating means; wherein when an area designated by said area designating means is within the first area on said platen, said image forming means actuates the operation of said erasing means in association with the designated area upon the first scanning operation of said exposure-scanning means, and prohibits the operation of said erasing means in association with the designated area upon the second scanning operation of said exposure-scanning means.
Claim 16
Dependent Claim
28 words
An image forming apparatus according to claim 13, wherein said erasing means includes light emitting means and controls said light emitting means in response to the designated portion.
Claim 17
Dependent Claim
43 words
An image forming apparatus according to claim 13, wherein both the image of the original exposed upon the first scanning operation and the image of the original exposed upon the second scanning operation are included in the same original placed on said platen.
Claim 18
Dependent Claim
42 words
An image forming apparatus according to claim 13, wherein the image of the original exposed upon the first scanning operation and the image of the original exposed upon the second scanning operation are included in the same original placed on said platen.
Claim 19
Dependent Claim
23 words
An image forming apparatus according to claim 13, wherein said erasing means erases an image outside said portion designated by said designating means.
Claim 20
Dependent Claim
217 words
An image forming apparatus comprising: a platen for placing an original thereon; one single exposure-scanning means for exposure-scanning an image of the original placed on said platen, wherein said exposure-scanning means scans a first area on said platen through a first scanning operation and then automatically scans a second area on said platen through a second scanning operation; image forming means for forming on a sheet an image of an original exposed by said exposure-scanning means upon the first scanning operation, and then for automatically forming on a sheet an image of an original exposed by said exposure-scanning means upon the second scanning operation, mode selecting means for selecting a shift mode for shifting on a sheet an image forming position for an image of an original; and input means operating in a first input state for inputting the amount of shifting of an image formed upon the first scanning operation and operating in a second input state for inputting the amount of shifting of an image formed upon the second scanning operation when said mode selecting means has selected the shift mode, wherein said image forming means respectively and independently shifts the images formed upon the first and second scanning operations in response to the amount of shifting inputted in the first and second input states.
Claim 21
Dependent Claim
217 words
An image forming apparatus comprising: a platen for placing an original thereon; one single exposure-scanning means for exposure-scanning an image of the original placed on said platen, wherein said exposure-scanning means scans a first area on said platen through a first scanning operation and then automatically scans a second area on said platen through a second scanning operation; image forming means for forming on a sheet an image of an original exposed by said exposure-scanning means upon the first scanning operation, and then for automatically forming on a sheet an image of an original exposed by said exposure-scanning means upon the second scanning operation, mode selecting means for selecting a shift mode for shifting on a sheet an image forming position for an image of an original; and input means operating in a first input state for inputting the amount of shifting of an image formed upon the first scanning operation and operating in a second input state for inputting the amount of shifting of an image formed upon the second scanning operation when said mode selecting means has selected the shift mode, wherein said image forming means respectively and independently shifts the images formed upon the first and second scanning operations in response to the amount of shifting inputted in the first and second input states.
Claim 22
Dependent Claim
39 words
An image forming apparatus according to claim 18, wherein said image forming means forms the image exposed upon the first scanning operation and the image exposed upon the second scanning operation on the same surface of the same sheet.
Claim 23
Dependent Claim
39 words
An image forming apparatus according to claim 18, wherein said image forming means forms each image exposed upon the first scanning operation and each image exposed upon the second scanning operation on a different surface of the same sheet.
Claim 24
Dependent Claim
43 words
An image forming apparatus according to claim 18, wherein both the image of the original exposed upon the first scanning operation and the image of the original exposed upon the second scanning operation are included in the same original placed on said platen.
Claim 25
Dependent Claim
43 words
An image forming apparatus according to claim 21, wherein the image of the original exposed upon the first scanning operation and the image of the original exposed upon the second scanning operation are included in respective originals placed on said platen in parallel.
Claim 26
Dependent Claim
174 words
An image forming apparatus comprising: a platen for placing an original thereon; one single exposure-scanning means for exposure-scanning an image of the original placed on said platen, wherein said exposure-scanning means scans a first area on said platen through a first scanning operation, and then automatically scans a second area on said platen through a second scanning operation; input means for inputting a magnification for image formation; image forming means for forming on a sheet an image of an original exposed by said exposure-scanning means upon the first scanning operation, and then for automatically forming on a sheet an image of an original exposed by said exposure-scanning means upon the second scanning operation, wherein said image forming means operates in a mode for image-forming both the image exposed upon the first scanning operation and the image exposed upon the second scanning operation with a common magnification inputted by said input means and operates in a mode for imaging-forming the images exposed upon the first and second scanning operations, with respectively and independently inputted magnifications.
Claim 27
Dependent Claim
174 words
An image forming apparatus comprising: a platen for placing an original thereon; one single exposure-scanning means for exposure-scanning an image of the original placed on said platen, wherein said exposure-scanning means scans a first area on said platen through a first scanning operation, and then automatically scans a second area on said platen through a second scanning operation; input means for inputting a magnification for image formation; image forming means for forming on a sheet an image of an original exposed by said exposure-scanning means upon the first scanning operation, and then for automatically forming on a sheet an image of an original exposed by said exposure-scanning means upon the second scanning operation, wherein said image forming means operates in a mode for image-forming both the image exposed upon the first scanning operation and the image exposed upon the second scanning operation with a common magnification inputted by said input means and operates in a mode for imaging-forming the images exposed upon the first and second scanning operations, with respectively and independently inputted magnifications.
Claim 28
Dependent Claim
43 words
An image forming apparatus according to claim 23, wherein both the image of the original exposed upon the first scanning operation and the image of the original exposed upon the second scanning operation are included in the same original placed on said platen.
Claim 29
Dependent Claim
43 words
An image forming apparatus according to claim 23, wherein the image of the original exposed upon the first scanning operation and the image of the original exposed upon the second scanning operation are included in respective originals placed on said platen in parallel.
Claim 30
Dependent Claim
38 words
An image forming apparatus according to claim 23, wherein said input means comprises means for inputting a magnification for the image exposed upon the second scanning operation after the image exposed upon the first scanning operation is formed.
Claim 31
Dependent Claim
38 words
An image forming apparatus according to claim 23, wherein said input means comprises means for inputting a magnification for the image exposed upon the second scanning operation before the image exposed upon the first scanning operation is formed.
Claim 32
Dependent Claim
40 words
An image forming apparatus according to claim 23, wherein said image forming means forms both the image exposed upon the first scanning operation and the image exposed upon the second scanning operation on the same surface of the same sheet.
Claim 33
Dependent Claim
34 words
An image forming apparatus according to claim 23, wherein said image forming means forms each of the images exposed upon the first and second scanning operations on a different surface of the same sheet.
Claim 34
Dependent Claim
164 words
An image forming apparatus comprising: a platen for placing an original thereon; means for exposure-scanning an image of the original placed on said platen; image forming means for forming the original image exposure-scanned by said exposure-scanning means on a sheet; first selecting means for selecting a first mode for (1) scanning a first area on said platen through a first scanning operation and for (2) forming an image, and then for (3) automatically scanning a second area on said platen through a second scaning operation and for (4) forming an image; and second selecting means for selecting a second mode for (1) erasing an image corresponding to an edge of an image of the original exposed by said exposure-scanning means and for (2) forming an image; wherein when said first selecting means selects the first mode, said image forming means automatically selects the second mode regardless of whether said second selecting means selects the second mode, in order to execute an image forming operation.
Claim 35
Dependent Claim
164 words
An image forming apparatus comprising: a platen for placing an original thereon; means for exposure-scanning an image of the original placed on said platen; image forming means for forming the original image exposure-scanned by said exposure-scanning means on a sheet; first selecting means for selecting a first mode for (1) scanning a first area on said platen through a first scanning operation and for (2) forming an image, and then for (3) automatically scanning a second area on said platen through a second scaning operation and for (4) forming an image; and second selecting means for selecting a second mode for (1) erasing an image corresponding to an edge of an image of the original exposed by said exposure-scanning means and for (2) forming an image; wherein when said first selecting means selects the first mode, said image forming means automatically selects the second mode regardless of whether said second selecting means selects the second mode, in order to execute an image forming operation.
Claim 36
Dependent Claim
43 words
An image forming apparatus according to claim 30, wherein both the image of the original exposed upon the first scanning operation and the image of the original exposed upon the second scanning operation are included in the same original placed on said platen.
Claim 37
Dependent Claim
43 words
An image forming apparatus according to claim 30, wherein the image of the original exposed upon the first scanning operation and the image of the original exposed upon the second scanning operation are included in respective originals placed on said platen in parallel.
Claim 38
Dependent Claim
47 words
An image forming apparatus according to claim 30, wherein said image forming means includes light emitting means for erasing an image corresponding to an edge of an image of the original, wherein said light emitting means is controlled in association with the size of the exposed original.
Claim 39
Dependent Claim
36 words
An image forming apparatus according to claim 30, wherein said image forming means operates in a mode for overlaying the images formed upon the first and second scanning operations with each other on the same sheet.
Claim 40
Dependent Claim
39 words
An image forming apparatus according to claim 30, wherein said image forming means operates in a mode for forming each of the images formed upon the first and second scanning operations on a different surface of the same sheet.
Claim 41
Dependent Claim
194 words
An image forming apparatus comprising: a platen for placing an original thereon; one single exposure-scanning means for exposure-scanning an image of the original placed on said platen, wherein said exposure-scanning means scans a first area on said platen through a first scanning operation, and then automatically scans a second area on said platen through a second scanning operation; output means for outputting a signal relative to an image forming magnification; and image forming means for forming on a sheet an image of an original exposed by said exposure-scanning means upon the first scanning operation, and then for automatically forming on a sheet an image of an original exposed by said exposure-scanning means upon the second scanning operation, wherein said image forming means operates in a mode for image-forming both the image exposed upon the first scanning opeation and the image exposed upon the second scanning operation in response to the signal relative to a common magnification outputted by said output means and wherein said image forming means operates in a mode for image-forming the images exposed upon the first and second scanning operations, in response to respective signals independently outputted by said output means.
Claim 42
Dependent Claim
194 words
An image forming apparatus comprising: a platen for placing an original thereon; one single exposure-scanning means for exposure-scanning an image of the original placed on said platen, wherein said exposure-scanning means scans a first area on said platen through a first scanning operation, and then automatically scans a second area on said platen through a second scanning operation; output means for outputting a signal relative to an image forming magnification; and image forming means for forming on a sheet an image of an original exposed by said exposure-scanning means upon the first scanning operation, and then for automatically forming on a sheet an image of an original exposed by said exposure-scanning means upon the second scanning operation, wherein said image forming means operates in a mode for image-forming both the image exposed upon the first scanning opeation and the image exposed upon the second scanning operation in response to the signal relative to a common magnification outputted by said output means and wherein said image forming means operates in a mode for image-forming the images exposed upon the first and second scanning operations, in response to respective signals independently outputted by said output means.
Claim 43
Dependent Claim
43 words
An image forming apparatus according to claim 36, wherein both the image of the original exposed upon the first scanning operation and the image of the original exposed upon the second scanning operation are included in the same original placed on said platen.
Claim 44
Dependent Claim
43 words
An image forming apparatus according to claim 36, wherein the image of the original exposed upon the first scanning operation and the image of the original exposed upon the second scanning operation are included in respective originals placed on said platen in parallel.
Claim 45
Dependent Claim
36 words
An image forming apparatus according to claim 36, wherein said output means outputs a signal relative to the image forming magnification in response to both the size of the original and the size of the sheet.
Claim 46
Dependent Claim
40 words
An image forming apparatus according to claim 36, wherein said image forming means forms both the image exposed upon the first scanning operation and the image exposed upon the second scanning operation on the same surface of the same sheet.
Claim 47
Dependent Claim
34 words
An image forming apparatus according to claim 36, wherein said image forming means forms each of the images exposed upon the first and second scanning operations on a different surface of the same sheet.
Claim 48
Dependent Claim
249 words
An image forming apparatus comprising: a platen for placing an original thereon; means for exposure-scanning an image of the original placed on said platen; image forming means for forming the original image exposure scanned by said exposure scanning means on a sheet; means for shifting the original image relative to the sheet upon image forming of the original image; first control means for controlling said exposure-scanning means and said image forming means such that an original image of a first area on said platen is exposure scanned by said exposure-scanning means and formed on one side of a sheet and then an original image of a second area on said platen is exposure-scanned automatically by said exposure-scanning means and formed on the other side of the sheet; second control means for controlling said exposure scanning means and said image forming means such that an original image of a first area on said platen is exposure-scanned by said exposure-scanning means and formed on one side of a sheet and then an original image of a second area on said platen is exposure-scanned automatically by said exposure-scanning means and formed on the same side of the sheet; selection means for selecting either one of said first and second control means; and third control means for enabling said shift means to automatically operate when said first control means is selected by said selection means and disenabling shift means to automatically operate when said second control means is selected by said selection means.
Claim 49
Dependent Claim
249 words
An image forming apparatus comprising: a platen for placing an original thereon; means for exposure-scanning an image of the original placed on said platen; image forming means for forming the original image exposure scanned by said exposure scanning means on a sheet; means for shifting the original image relative to the sheet upon image forming of the original image; first control means for controlling said exposure-scanning means and said image forming means such that an original image of a first area on said platen is exposure scanned by said exposure-scanning means and formed on one side of a sheet and then an original image of a second area on said platen is exposure-scanned automatically by said exposure-scanning means and formed on the other side of the sheet; second control means for controlling said exposure scanning means and said image forming means such that an original image of a first area on said platen is exposure-scanned by said exposure-scanning means and formed on one side of a sheet and then an original image of a second area on said platen is exposure-scanned automatically by said exposure-scanning means and formed on the same side of the sheet; selection means for selecting either one of said first and second control means; and third control means for enabling said shift means to automatically operate when said first control means is selected by said selection means and disenabling shift means to automatically operate when said second control means is selected by said selection means.
Claim 50
Dependent Claim
25 words
An image forming apparatus according to claim 42, wherein said third control means optionally enables said shift means when said second control means is selected.
Claim 51
Dependent Claim
37 words
An image forming apparatus according to claim 40, wherein both the original images of the first and second areas on said platen are included in the same original placed over both of the first and second areas.
Claim 52
Dependent Claim
42 words
An image forming apparatus according to claim 40, wherein the original images of the first and second areas on said platen are included in respective and different originals which are placed on the first and second areas on said platen in parallel.
References Cited (Backward Citations)
US3960445A
Cited
US3914043A
Cited
US4205350A
Cited
US4218130A
Cited
US4451136A
Cited
JPS56109386A
Cited
US4366508A
Cited
JPS56133773A
Cited
US4417805A
Cited
DE3143962A1
Cited
US4501490A
Cited
US4582417A
Cited
US4537497A
Cited
JPS58186735A
Cited
JPS58216276A
Cited
US4600293A
Cited
US4627707A
Cited
US4707126A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-04-24 | 1992-10-24 | 1993-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-24 | 1996-10-24 | 1997-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-24 | 2000-10-24 | 2001-04-25 | $7700.00 | Window Closed / Lapsed |