US4959669A
Expired / Lapsed
US
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Color correction device for a color image forming apparatus
Assignee: Konica Minolta Inc
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Filing: 1988-06-02
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Granted: 1990-09-25
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Expires: 2008-06-02
Abstract
Abstract A color image processing apparatus including an image-reading device for reading a color image on an original to obtain first color image data, an image memory which stores the first color image data, and a factor memory which stores a predetermined correction factor. A color correction system corrects the first color image data with the correction factor. An image-producing apparatus produces a color copy image on the basis of the corrected first color image data, where the image-reading device reads the color copy image to obtain second color image data. The image-processing apparatus further includes a processing member which performs a comparison between the first color image data stored and changes the correction factor on the basis of the comparison.
Inventors
- 👤 Satoshi Haneda
- 👤 Hisashi Shoji
- 👤 Kunihisa Yoshino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:05
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/56; H04N1/60; H04N1/6027; H04N1/603; H04N1/6033; Y; Y10; Y10S; Y10S347/00; Y10S347/90
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
144 words
A color image processing apparatus comprising; image-reading means for reading a color image on an original to obtain first color image data; a factor memory for storing a predetermined correction factor; correction means for correcting the first color image data with the correction factor; an image memory for storing the corrected first color image data; image-producing means for producing a color copy image on the basis of the corrected first color image data, the image-reading means being adapted to read the color copy image to obtain second color image data and the correction means being adapted to correct the second color image data with the correction factor; and processing means for performing a comparison of the corrected first color image data stored in the image memory and the corrected second color image data, and changing the correction factor on the basis of the comparison.
Claim 2
Dependent Claim
144 words
A color image processing apparatus comprising; image-reading means for reading a color image on an original to obtain first color image data; a factor memory for storing a predetermined correction factor; correction means for correcting the first color image data with the correction factor; an image memory for storing the corrected first color image data; image-producing means for producing a color copy image on the basis of the corrected first color image data, the image-reading means being adapted to read the color copy image to obtain second color image data and the correction means being adapted to correct the second color image data with the correction factor; and processing means for performing a comparison of the corrected first color image data stored in the image memory and the corrected second color image data, and changing the correction factor on the basis of the comparison.
Claim 3
Dependent Claim
47 words
The color image processing apparatus of claim 1, wherein the image-producing means includes a photoreceptor for forming an electrostatic latent image on the basis of the corrected first color image data and developing means for developing the electrostatic latent image so as to form a toner image.
Claim 4
Dependent Claim
40 words
The color image processing apparatus of claim 2, wherein the image-producing means includes means for superimposing plural toner images to form a composite color toner image, and wherein the composite color toner image is used as the color copy image.
Claim 5
Dependent Claim
124 words
A color image processing apparatus comprising: image-reading means for reading a color image on an original to obtain first color image data; an image memory for storing the first color image data; a factor memory for storing a predetermined correction factor; correction means for correcting the first color image data with the correction factor; image-producing means for producing a color copy image on the basis of the corrected first color image data, the image-reading means being adapted to read the color copy image to obtain second color image data; and processing means for performing a comparison between the first color image data stored in the image memory and the second color image data and changing the correction factor on the basis of the comparison.
Claim 6
Dependent Claim
124 words
A color image processing apparatus comprising: image-reading means for reading a color image on an original to obtain first color image data; an image memory for storing the first color image data; a factor memory for storing a predetermined correction factor; correction means for correcting the first color image data with the correction factor; image-producing means for producing a color copy image on the basis of the corrected first color image data, the image-reading means being adapted to read the color copy image to obtain second color image data; and processing means for performing a comparison between the first color image data stored in the image memory and the second color image data and changing the correction factor on the basis of the comparison.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-09-24 | 1994-03-26 | 1994-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-24 | 1998-03-26 | 1998-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-24 | 2002-03-26 | 2002-09-25 | $7700.00 | Window Closed / Lapsed |