US4847654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image forming apparatus for processing different areas on an original in different ways
Assignee: Canon Inc
•
Filing: 1986-11-18
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Granted: 1989-07-11
•
Expires: 2006-11-18
Abstract
Abstract There is disclosed an image forming apparatus for achieving plural image processing modes. The original image is divided into plural areas, and a monocolor or multi-color reproduction is selected for each of the thus divided areas, so that the resulting reproduction contains a mixture of monocolor image areas and multi-color image areas.
Inventors
- 👤 Toshio Honma
- 👤 Yoshinori Ikeda
- 👤 Yasumichi Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:53
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/387; H04N1/3872; H04N1/3873; H04N1/3875; H04N1/40; H04N1/405; H04N1/4055; H04N1/4056; H04N1/46; H04N1/50; H04N1/506; H04N1/508; H04N1/56
Claims Analysis
Total Claims: 105
Claim 1
Independent Claim
62 words
A color image reproducing apparatus comprising: division means for dividing an original image into plural areas; setting means for setting a multi-color or mono-color reproduction for each of the thus divided plural areas; and reproduction means for reproducing multi-color reproduced images and mono-color reproduced images in a mixed manner on the same recording material according to the setting of said setting means.
Claim 2
Dependent Claim
62 words
A color image reproducing apparatus comprising: division means for dividing an original image into plural areas; setting means for setting a multi-color or mono-color reproduction for each of the thus divided plural areas; and reproduction means for reproducing multi-color reproduced images and mono-color reproduced images in a mixed manner on the same recording material according to the setting of said setting means.
Claim 3
Dependent Claim
33 words
A color image reproducing apparatus according to claim 1, wherein said reproduction means is adapted to reproduce said mono-color reproduced image with a resolving power higher than that of said multi-color reproduced image.
Claim 4
Dependent Claim
33 words
A color image reproducing apparatus according to claim 1, wherein said reproduction means is adapted to reproduce said multi-color reproduced image with a tonal rendition better than that of said monocolor reproduced image.
Claim 5
Dependent Claim
32 words
A color image reproducing apparatus according to claim 1, wherein said mono-color reproduced image is an image showing an average density change over the entire visible wavelength range of the original image.
Claim 6
Dependent Claim
42 words
A color image reproducing apparatus according to claim 1, wherein said division means includes means for converting said original image into an electrical image signal, and said reproduction means is adapted to reproduce tonal rendition by pulse-width modulating said electrical image signal.
Claim 7
Dependent Claim
47 words
A color image reproducing apparatus according to claim 5, wherein said division means includes means for converting said original image into an electrical image signal, and reproduction means is adapted to effect pulse width modulation through comparison of said electrical image signal with a predetermined pattern signal.
Claim 8
Dependent Claim
34 words
A color image reproducing apparatus according to claim 6, wherein the repeating frequency of said pattern signal is higher in the reproduction of the mono-color image than in the reproduction of the multicolor image.
Claim 9
Dependent Claim
18 words
A color image reproducing apparatus according to claim 6, wherein said pattern signal is a triangular wave signal.
Claim 10
Dependent Claim
64 words
A color image reproducing apparatus comprising: multi-color reproduction mean for effecting image reproduction with plural colors; mono-color reproduction means for effecting image reproduction with a single color; setting means for setting either one of said reproduction means; and switching means for increasing the resolving power in the mono-color reproduction higher than that in the multi-color reproduction, according to the setting by said setting means.
Claim 11
Dependent Claim
64 words
A color image reproducing apparatus comprising: multi-color reproduction mean for effecting image reproduction with plural colors; mono-color reproduction means for effecting image reproduction with a single color; setting means for setting either one of said reproduction means; and switching means for increasing the resolving power in the mono-color reproduction higher than that in the multi-color reproduction, according to the setting by said setting means.
Claim 12
Dependent Claim
40 words
A color image reproducing apparatus according to claim 9, wherein said switching means is adapted to improve the tonal rendition in the multi-color reproduction in comparison with that in the monocolor reproduction, according to the setting by said setting means.
Claim 13
Dependent Claim
48 words
A color image reproducing apparatus according to claim 9, wherein said division means includes means for converting said original image into an electrical image signal, and both said multi-color reproduction means and mono-color reproduction means are adapted to reproduce tonal rendition by pulse-width modulating said electrical image signal.
Claim 14
Dependent Claim
54 words
A color image reproducing apparatus according to claim 11, wherein said division means includes means for converting said original image into an electrical image signal, and both said multi-color reproduction means and mono-color reproduction means are adapted to achieve pulse width modulation through comparison of said electrical image signal with a predetermined pattern signal.
Claim 15
Dependent Claim
38 words
A color image reproducing apparatus according to claim 12, wherein said switching means is adapted to switch the repeating frequency of said pattern signal, wherein said frequency is higher in the mono-color reproduction than in the multi-color reproduction.
Claim 16
Dependent Claim
18 words
A color image reproducing apparatus according to claim 12, wherein said pattern signal is a triangular wave signal.
Claim 17
Dependent Claim
106 words
An image forming apparatus comprising: reader means for reading at least two areas of an original image placed on an original support; image process means for applying respectively different processes to images read from said areas; and means for reproducing an image processed by said image process means, said reproducing means changing a position of at least one of said areas and forming the images processed by said image process means on the same forming material, wherein said image process means is capable of a multi-color process mode for image reproduction with plural colors and a mono-color process mode for image reproduction with a single color.
Claim 18
Dependent Claim
106 words
An image forming apparatus comprising: reader means for reading at least two areas of an original image placed on an original support; image process means for applying respectively different processes to images read from said areas; and means for reproducing an image processed by said image process means, said reproducing means changing a position of at least one of said areas and forming the images processed by said image process means on the same forming material, wherein said image process means is capable of a multi-color process mode for image reproduction with plural colors and a mono-color process mode for image reproduction with a single color.
Claim 19
Dependent Claim
97 words
An image forming apparatus comprising: reader means for reading at least two areas of an original image placed on an original support; image process means for applying respectively different processes to images read from said areas; and means for reproducing an image processed by said image process means, said reproducing means changing a position of at least one of said areas and forming the images processed by said image process means on the same forming material. wherein said image process means is capable of plural resolving power process modes with respectively different resolving powers at image reproduction.
Claim 20
Dependent Claim
97 words
An image forming apparatus comprising: reader means for reading at least two areas of an original image placed on an original support; image process means for applying respectively different processes to images read from said areas; and means for reproducing an image processed by said image process means, said reproducing means changing a position of at least one of said areas and forming the images processed by said image process means on the same forming material. wherein said image process means is capable of plural resolving power process modes with respectively different resolving powers at image reproduction.
Claim 21
Dependent Claim
94 words
An image forming apparatus comprising: reader means for reading at least two areas of an original image placed on an original support; image process means for applying respectively different processes to images read from said areas; and means for reproducing an image processed by said image process means, said reproducing means changing a position of at least one of said areas and forming the images processed by said image process means on the same forming material, wherein said image process means is capable of plural tonal process modes with respectively different tonal conversion characteristics.
Claim 22
Dependent Claim
94 words
An image forming apparatus comprising: reader means for reading at least two areas of an original image placed on an original support; image process means for applying respectively different processes to images read from said areas; and means for reproducing an image processed by said image process means, said reproducing means changing a position of at least one of said areas and forming the images processed by said image process means on the same forming material, wherein said image process means is capable of plural tonal process modes with respectively different tonal conversion characteristics.
Claim 23
Dependent Claim
99 words
An image forming apparatus comprising: reader means for reading at least two areas of an original image placed on an original support; image process means for applying respectively different processes to images read from said areas; and means for reproducing an image processed by said image process means, said reproducing means changing a position of at least one of said areas and forming the images processed by said image process means on the same forming material, wherein said image process means is capable of plural color television process modes for image output in different colors from the read color.
Claim 24
Dependent Claim
99 words
An image forming apparatus comprising: reader means for reading at least two areas of an original image placed on an original support; image process means for applying respectively different processes to images read from said areas; and means for reproducing an image processed by said image process means, said reproducing means changing a position of at least one of said areas and forming the images processed by said image process means on the same forming material, wherein said image process means is capable of plural color television process modes for image output in different colors from the read color.
Claim 25
Dependent Claim
89 words
A color image reproducing apparatus comprising: generation means for generating a color image signal; tone correction means for tone correction of said color image signal; color correction means for correcting a color of said color image signal; color image forming means for forming an image of plural colors according to the color image signal processed by said tone correction means and said color correction means; and modification means for modifying the correction characteristics of said tone correction means according to the color formed by said color image forming means.
Claim 26
Dependent Claim
89 words
A color image reproducing apparatus comprising: generation means for generating a color image signal; tone correction means for tone correction of said color image signal; color correction means for correcting a color of said color image signal; color image forming means for forming an image of plural colors according to the color image signal processed by said tone correction means and said color correction means; and modification means for modifying the correction characteristics of said tone correction means according to the color formed by said color image forming means.
Claim 27
Dependent Claim
19 words
A color image reproducing apparatus according to claim 19, wherein said tone correction means is composed of a memory.
Claim 28
Dependent Claim
39 words
A color image reproducing apparatus according to claim 19, wherein said color image forming means is adapted to switch the colors in succession, and said modification means is adapted to modify the correction characteristic in response to said switching.
Claim 29
Dependent Claim
56 words
A color image reproduction apparatus comprising: division means for dividing an original image into a plurality of areas; and means for controlling whether said original image is visibly reproduced by the luminance of a reproduced image or said original image is visibly reproduced by the chrominance of a reproduced image for each of said divided areas.
Claim 30
Dependent Claim
56 words
A color image reproduction apparatus comprising: division means for dividing an original image into a plurality of areas; and means for controlling whether said original image is visibly reproduced by the luminance of a reproduced image or said original image is visibly reproduced by the chrominance of a reproduced image for each of said divided areas.
Claim 31
Dependent Claim
25 words
An apparatus according to claim 22, further comprising visible reproduction means for visibly reproducing said original image in accordance with setting of said set means.
Claim 32
Dependent Claim
25 words
An apparatus according to claim 22, wherein said division means divides said original image into said plurality of areas with designating coordinates of said areas.
Claim 33
Dependent Claim
43 words
An apparatus according to claim 23, wherein said visible reproducing means further comprising: first means for visibly reproducing said original image by the luminance of a reproduced image; and second means visibly reproducing said original image by the chrominance of a reproduced image.
Claim 34
Dependent Claim
22 words
An apparatus according to claim 25, wherein said first means includes means for visibly reproducing said original image in a single color.
Claim 35
Dependent Claim
21 words
An apparatus according to claim 25, wherein said second means includes means for visibly reproducing said original image in plural colors.
Claim 36
Dependent Claim
22 words
An apparatus according to claim 25, wherein a resolution of said first means is higher than a resolution of said second means.
Claim 37
Dependent Claim
21 words
An apparatus according to claim 25, wherein said division means includes means for converting said original image into an electrical signal.
Claim 38
Dependent Claim
22 words
An apparatus according to claim 29, wherein said first means performs a gradation-reproduction by modulating a pulse width of said electrical signal.
Claim 39
Dependent Claim
85 words
A color image reproduction apparatus comprising: color image signal means for supplying a color image signal; gradation correction means for gradation-correcting said color image signal, said gradation correction means changing correction characteristics for every color of said color image signal; color correction means for correcting a color of said color image signal; and visible reproduction means for visibly reproducing in a mixing manner every color of said color image signal corrected by said gradation correction means and said color correction means on a same recording.
Claim 40
Dependent Claim
85 words
A color image reproduction apparatus comprising: color image signal means for supplying a color image signal; gradation correction means for gradation-correcting said color image signal, said gradation correction means changing correction characteristics for every color of said color image signal; color correction means for correcting a color of said color image signal; and visible reproduction means for visibly reproducing in a mixing manner every color of said color image signal corrected by said gradation correction means and said color correction means on a same recording.
Claim 41
Dependent Claim
14 words
An apparatus according to claim 31, wherein said gradation correction means comprises a memory.
Claim 42
Dependent Claim
26 words
An apparatus according to claim 32, wherein said visible reproduction means includes means which prints said color image signal onto said material for said visible reproduction.
Claim 43
Dependent Claim
41 words
An apparatus according to claim 33, wherein said visible reproduction means includes means which sequentially prints said color image signal onto said material for every color for said visible reproduction, and said graduation correction means changes correction characteristics for every color.
Claim 44
Dependent Claim
70 words
Color image processing apparatus comprising: video signal supplying means for supplying a color video signal having a characteristic; and characteristic converting means for converting the characteristic of said video signal supplied by said video signal supplying means and for producing a converted video signal therefrom, wherein said characteristic converting means includes means for periodically changing a factor for converting the characteristic of said color video signal at a predetermined interval.
Claim 45
Dependent Claim
70 words
Color image processing apparatus comprising: video signal supplying means for supplying a color video signal having a characteristic; and characteristic converting means for converting the characteristic of said video signal supplied by said video signal supplying means and for producing a converted video signal therefrom, wherein said characteristic converting means includes means for periodically changing a factor for converting the characteristic of said color video signal at a predetermined interval.
Claim 46
Dependent Claim
50 words
Color image processing apparatus according to claim 35, wherein said color video supplying means supplies a digital color video signal, and wherein said characteristic converting means converts the characteristic of said digital color video signal generated by said video signal supplying means and produces a converted digital color video signal.
Claim 47
Dependent Claim
70 words
Color image processing apparatus according to claim 36, further comprising image forming means for forming an image in response to said converted color video signal; and wherein said image forming means scans lines on a recording medium in response to said converted digital video signal, and said changing means changes the factor for converting the characteristic of said digital video signal for each line scanned by said image forming means.
Claim 48
Dependent Claim
42 words
Color image processing apparatus according to claim 37, wherein said characteristic converting means includes a table for entering the digital video signal supplied from said video signal supplying means as an address, the converted digital video signal being produced from the table.
Claim 49
Dependent Claim
47 words
Color image processing apparatus according to claim 38, wherein a plurality of tables are provided for entering the digital video signal supplied from the video signal supplying means as an address, and said changing means changes the table for each line scanned by said image forming means.
Claim 50
Dependent Claim
31 words
Color image processing apparatus according to claim 36, wherein said characteristic converting means comprises storage means containing digital information for providing at least one non-linear transformation of said digital video signal.
Claim 51
Dependent Claim
26 words
Color image processing apparatus according to claim 40, wherein said storage means comprises a read only memory for storing a digital reference table for gamma correction.
Claim 52
Dependent Claim
91 words
Color image processing apparatus according to claim 39, wherein said image forming means includes digital-to-analog converting means for converting the converted digital color video signal generated by said characteristic converting means into an analog video signal, pattern signal generating means for generating a pattern signal of predetermined period, pulse-width-modulated signal generating means for generating a pulse-width-modulated signal in accordance with said analog video signal and said pattern signal, and a raster scanning print engine for generating a series of successive scan lines with a beam in accordance with said pulse-width-modulated signal.
Claim 53
Dependent Claim
41 words
Color image processing apparatus according to claim 42, wherein said image forming means includes means for generating a synchronizing signal for each line scanned on the recording medium, and said changing means changes the table in accordance with the synchronizing signal.
Claim 54
Dependent Claim
41 words
Color image processing apparatus according to claim 43, wherein said synchronizing signal generating means includes detecting means for detecting a scanning position of the beam and generates the synchronizing signal on the basis of a detection output from said detecting means.
Claim 55
Dependent Claim
28 words
Color image processing apparatus according to claim 43, wherein said pattern signal generating means generates the pattern signal having a predetermined period in accordance with said synchronizing signal.
Claim 56
Dependent Claim
45 words
Color image processing apparatus according to claim 42, wherein said digital video signal ranges between a maximum value and a minimum value, and said pulse-width-modulated signal generating means generates a pulse-width-modulated signal having predetermined pulse width when said digital video signal has the minimum value.
Claim 57
Dependent Claim
45 words
Color image processing apparatus according to claim 42, wherein said digital video signal ranges between a maximum value and a minimum value, and said pulse-width-modulated signal generating means generates a pulse-width-modulated signal having predetermined pulse width when said digital video signal has the maximum value.
Claim 58
Dependent Claim
25 words
Color image processing apparatus according to claim 43, wherein one period of said pattern corresponds to a plurality of pixels of the digital video signal.
Claim 59
Dependent Claim
36 words
Color image processing apparatus according to claim 42, wherein said pattern signal generating means includes an integrator for entering a clock having a predetermined period and for generating a triangular wave signal as the pattern signal.
Claim 60
Dependent Claim
30 words
Color image processing apparatus according to claim 37, wherein said image forming means includes pulse-width-modulated signal generating means for generating a pulse-width-modulated signal in accordance with the converted video signal.
Claim 61
Dependent Claim
43 words
Color image processing apparatus comprising: means for applying a color video signal; and means for modulating said color video signal into a pulse-width-modulated signal to drive a record means, said pulse-width-modulated signal being defined according to a response characteristic of said record means.
Claim 62
Dependent Claim
43 words
Color image processing apparatus comprising: means for applying a color video signal; and means for modulating said color video signal into a pulse-width-modulated signal to drive a record means, said pulse-width-modulated signal being defined according to a response characteristic of said record means.
Claim 63
Dependent Claim
45 words
Color image processing apparatus according to claim 51, wherein said record means includes: means for emitting radiation in accordance with said pulse-width-modulated signal; and means for receiving said radiation emitted by said emitting means, said receiving means forming an image in response to said radiation.
Claim 64
Dependent Claim
16 words
Color image processing apparatus according to claim 52, wherein said emitting means includes a laser unit.
Claim 65
Dependent Claim
16 words
Color image processing apparatus according to claim 52, wherein said receiving means includes a photosensitive drum.
Claim 66
Dependent Claim
22 words
Color image processing apparatus according to claim 51, wherein said modulating means includes a pulse-width-modulation circuit which modulates said color video signal.
Claim 67
Dependent Claim
25 words
Color image processing apparatus according to claim 52, wherein said response characteristic is a time between generation of said pulse-width-modulated signal and actual radiation emitting.
Claim 68
Dependent Claim
28 words
Color image processing apparatus according to claim 52, wherein said record means further includes means for transferring said image formed by said receiving means to a recording material.
Claim 69
Dependent Claim
33 words
Color image processing apparatus according to claim 51, wherein said supplying means includes means for reading out an original and generating said color video signal in accordance with an image on said original.
Claim 70
Dependent Claim
40 words
Color image processing apparatus according to claim 55, wherein said color video signal ranges between a maximum value and a minimum value, and said pulse-width-modulation circuit generates a predetermined pulse width when said color video signal has said minimum value.
Claim 71
Dependent Claim
40 words
Color image processing apparatus according to claim 55, wherein said color video signal ranges between a maximum value and a minimum value, and said pulse-width-modulation circuit generates a predetermined pulse width when said color video signal has said maximum value.
Claim 72
Dependent Claim
96 words
An image processing apparatus comprising: supply means for supplying an image signal; a first processing circuit for combining a first-period pattern signal with said image signal supplied by said supply means to output a first-pulse-width modulation image signal; a second processing circuit for combining a second-period pattern signal with said image signal supplied by said supply means to output a second-pulse-width modulation image signal, a second period of said second-period pattern signal being different from a first period of said first-period pattern signal; and selection means for selecting one of said first and second processing circuits.
Claim 73
Dependent Claim
96 words
An image processing apparatus comprising: supply means for supplying an image signal; a first processing circuit for combining a first-period pattern signal with said image signal supplied by said supply means to output a first-pulse-width modulation image signal; a second processing circuit for combining a second-period pattern signal with said image signal supplied by said supply means to output a second-pulse-width modulation image signal, a second period of said second-period pattern signal being different from a first period of said first-period pattern signal; and selection means for selecting one of said first and second processing circuits.
Claim 74
Dependent Claim
71 words
An apparatus according to claim 61, further comprising: a laser beam modulation circuit for receiving an output from said first or second processing circuit selected by said selection means; and detection means for detecting a position to which a laser beam is irradiated, said laser beam being modulated by said laser beam modulation circuit, wherein phases of said first and second periods are in synchronism with detection of said detection means.
Claim 75
Dependent Claim
18 words
An apparatus according to claim 61, wherein said first- and second-period pattern signals have substantially the same magnitude.
Claim 76
Dependent Claim
30 words
An apparatus according to claim 61, wherein said image signal supplied by said supply means is a digital image signal, and said first- and second-period pattern signals are analog signals.
Claim 77
Dependent Claim
41 words
An apparatus according to claim 64, wherein said first processing circuit includes a digital-to-analog converter for converting said digital image signal into an analog signal, and a comparator for comparing an output from said digital-to-analog converter with said first-period pattern signal.
Claim 78
Dependent Claim
40 words
An apparatus according claim 64, wherein said second processing circuit includes a digital-to-analog converter for converting said digital image signal into an analog signal, and a comparator for comparing an output from said digital-to-analog converter with said second-period pattern signal.
Claim 79
Dependent Claim
34 words
An apparatus according to claim 61, further comprising generation means for generating said first- and second-period pattern signals, and wherein said generation means generates said first- and second-period pattern signals from a common clock.
Claim 80
Dependent Claim
84 words
An image processing apparatus comprising: supply means for supplying an image signal; pattern signal generation means for generating a plurality of kinds of periodic pattern signals, said periodic pattern signals respectively having different periods; pulse-width modulation means for performing a pulse-width modulation for said image signal in response to said plurality of kinds of periodic pattern signals to output a plurality of kinds of pulse-width modulation image signals; and selection means for selecting one of said plurality of kinds of pulse-width modulation image signals.
Claim 81
Dependent Claim
84 words
An image processing apparatus comprising: supply means for supplying an image signal; pattern signal generation means for generating a plurality of kinds of periodic pattern signals, said periodic pattern signals respectively having different periods; pulse-width modulation means for performing a pulse-width modulation for said image signal in response to said plurality of kinds of periodic pattern signals to output a plurality of kinds of pulse-width modulation image signals; and selection means for selecting one of said plurality of kinds of pulse-width modulation image signals.
Claim 82
Dependent Claim
90 words
An apparatus according to claim 68, further comprising: a laser beam modulation circuit for receiving an output from said one of said plurality of kinds of pulse-width modulation image signals selected by said selection means; and detection means for detection a position to which a laser beam is irradiated, said laser beam being modulated by said laser beam modulation circuit, wherein phases of the periods of said plurality of kinds of periodic pattern signals generated by said pattern signal generation means are in synchronism with detection of said detection means.
Claim 83
Dependent Claim
27 words
An apparatus according to claim 68, wherein said plurality of kinds of periodic pattern signals generated by said pattern signal generation means have substantially the same amplitude.
Claim 84
Dependent Claim
36 words
An apparatus according to claim 68, wherein said image signal supplied by said supply means is a digital image signal, and said periodic pattern signal generated by said pattern signal generation means is an analog signal.
Claim 85
Dependent Claim
51 words
An apparatus according to claim 71, wherein said pulse-width modulation means further includes: a plurality of capacitors provided corresponding to said plurality of kinds of pattern signals generated by said pattern signals generation means; and means for digital-to-analog converting said digital image signal to supply it to said plurality of comparators.
Claim 86
Dependent Claim
25 words
An apparatus according to claim 68, wherein said pattern signal generation means generates said plurality of kinds of periodic pattern signals from a common clock.
Claim 87
Dependent Claim
36 words
An apparatus according to claim 68, wherein said selection means selects one of said plurality of kinds of pulse-width modulation image signals in accordance with a characteristic of said image signal supplied by said supply means.
Claim 88
Dependent Claim
33 words
An apparatus according to claim 61, wherein said selection means selects one of said first and second processing circuits in accordance with a characteristic of said image signal supplied by said supply means.
Claim 89
Dependent Claim
81 words
A color image formation apparatus comprising: supply means for supplying a color image signal as a plane sequential signal, for each color component; modulation means for pulse-width modulating said plane sequential signal supplied by said supply means; image formation means for performing an image formation for each color component on a recording medium, on the basis of said signal modulated by said modulation means; and fixing means for fixing an image formed by said image formation means on said recording medium.
Claim 90
Dependent Claim
81 words
A color image formation apparatus comprising: supply means for supplying a color image signal as a plane sequential signal, for each color component; modulation means for pulse-width modulating said plane sequential signal supplied by said supply means; image formation means for performing an image formation for each color component on a recording medium, on the basis of said signal modulated by said modulation means; and fixing means for fixing an image formed by said image formation means on said recording medium.
Claim 91
Dependent Claim
31 words
An apparatus according to claim 76, wherein said supply means includes means for reading out an original and generating said color image signal in accordance with an image on said original.
Claim 92
Dependent Claim
49 words
An apparatus according to claim 76, wherein said modulation means further includes: periodic signal generation means for generating a periodic signal the level of which is changed at a predetermined period; and comparison means for comparing said periodic signal with said color image signal supplied by said supply means.
Claim 93
Dependent Claim
79 words
An apparatus according to claim 76, wherein said image formation means further includes: laser beam generation means for generating a laser beam which is modulated by said modulated signal; photosensitive means to which said modulated laser beam is irradiated and on which a latent image is formed; developing means for developing said latent image on said photosensitive means by using a toner; and transfer means for transferring a toner image developed by said developing means onto said recording medium.
Claim 94
Dependent Claim
16 words
An apparatus according to claim 76, wherein said fixing means performs a fixing operation with heating.
Claim 95
Dependent Claim
21 words
An apparatus according to claim 79, wherein said fixing means fixes, with heating, said toner image transferred by said transfer means.
Claim 96
Dependent Claim
65 words
A color image formation apparatus comprising: supply means for supplying a color image signal as a plane sequential signal, for each color component; modulation means for pulse-width modulating said plane sequential signal supplied by said supply means; and image formation means for performing an image formation for each color component on a recording medium, on the basis of said signal modulated by said modulation means.
Claim 97
Dependent Claim
65 words
A color image formation apparatus comprising: supply means for supplying a color image signal as a plane sequential signal, for each color component; modulation means for pulse-width modulating said plane sequential signal supplied by said supply means; and image formation means for performing an image formation for each color component on a recording medium, on the basis of said signal modulated by said modulation means.
Claim 98
Dependent Claim
22 words
An apparatus according to claim 82, wherein said plane sequential signal includes yellow (Y), magenta (M), cyan (C) and black (K) signals.
Claim 99
Dependent Claim
31 words
An apparatus according to claim 82, wherein said supply means includes means for reading out an original and generating said color image signal in accordance with an image on said original.
Claim 100
Dependent Claim
49 words
An apparatus according to claim 82, wherein said modulation means further includes: periodic signal generation means for generating a periodic signal the level of which is changed at a predetermined period; and comparison means for comparing said periodic signal with said color image signal supplied by said supply means.
Claim 101
Dependent Claim
79 words
An apparatus according to claim 82, wherein said image formation means further includes: laser beam generation means for generating a laser beam which is modulated by said modulated signal; photosensitive means to which said modulated laser beam is irradiated and on which a latent image is formed; developing means for developing said latent image on said photosensitive means by using a toner; and transfer means for transferring a toner image developed by said developing means onto said recording medium.
Claim 102
Dependent Claim
26 words
An apparatus according to claim 15, wherein said image process means is capable of plural magnification-change process modes with respectively different image magnifications at image reproduction.
Claim 103
Dependent Claim
26 words
An apparatus according to claim 16, wherein said image process means is capable of plural magnification-change process modes with respectively different image magnification at image reproduction.
Claim 104
Dependent Claim
26 words
An apparatus according to claim 17, wherein said image process means is capable of plural magnification-change process modes with respectively different image magnifications at image reproduction.
Claim 105
Dependent Claim
26 words
An apparatus according to claim 18, wherein said image process means is capable of plural magnification-change process modes with respectively different image magnifications at image reproduction.
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USPTO Annuity & Maintenance Windows
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| 3.5 Years (Year 4) | 1992-07-10 | 1993-01-09 | 1993-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-10 | 1997-01-09 | 1997-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-10 | 2001-01-09 | 2001-07-11 | $7700.00 | Window Closed / Lapsed |