US6577826B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image forming apparatus which sets parameters for the formation of paper
Assignee: Fujifilm Business Innovation Corp
•
Filing: 2000-11-27
•
Granted: 2003-06-10
•
Expires: 2020-11-27
Abstract
Abstract In an image forming apparatus, in accordance with formation of paper, there are controlled parameters; that is, a color conversion parameter pertaining to a color conversion section 23 of a drawing section 22 ; a parameter pertaining to a correction curve of an TRC·γ correction section 24 or a parameter pertaining to the number of screens or a growth pattern of a screen processing section 25 provided in a printer engine control section 12 ; parameters for use in adjusting electrification, exposure, and a voltage to be used during a developing operation, which are employed in a printer engine 13 ; a parameter for adjusting a voltage or current during a transfer operation; and a parameter for adjusting a fixing temperature or pressure. Parameters are controlled so as to reduce inconsistencies, which would otherwise arise in paper of poor formation. Thus, picture quality of an image is improved while inconsistencies are made less noticeable.
Inventors
- 👤 Toru Misaizu
- 👤 Atsushi Kitagawara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:41
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/50; G03G15/5029; G03G15/65; G03G15/6588; G03G15/6591; H; H04; H04N; H04N1/00; H04N1/40; H04N1/407; H04N1/46; H04N1/56; H04N1/60; H04N1/6016; H04N1/6022; H04N1/6097; G03G2215/00; G03G2215/00362; G03G2215/00443; G03G2215/00451; G03G2215/00476; G03G2215/01; G03G2215/0103; G03G2215/0119
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
59 words
An image forming apparatus comprising: an image formation section adapted to enable setting of various parameters and forming an image in accordance with the parameters; and a controller adapted to form an image on paper by means of setting the parameters in said image formation section to reduce inconsistencies appearing on the image due to formation of the paper.
Claim 2
Dependent Claim
59 words
An image forming apparatus comprising: an image formation section adapted to enable setting of various parameters and forming an image in accordance with the parameters; and a controller adapted to form an image on paper by means of setting the parameters in said image formation section to reduce inconsistencies appearing on the image due to formation of the paper.
Claim 3
Dependent Claim
46 words
The image forming apparatus according to claim 1 , wherein said image formation section includes a color correction section adapted to correct a color according to a color correction parameter, and said controller sets the color correction parameter in accordance with the formation of the paper.
Claim 4
Dependent Claim
74 words
The image forming apparatus according to claim 1 or 2 , wherein said image formation section forms an image through use of a plurality of coloring materials including a black coloring material and has the function of adjusting the amount of black coloring material according to a black coloring parameter, and said controller adjusts the black coloring parameter for adjusting the amount of the black coloring material according to the formation of the paper.
Claim 5
Dependent Claim
55 words
The image forming apparatus according to claim 1 , wherein said image formation section includes a spatial filtering section adapted to subject an image to spatial filtering operation in accordance with a spatial filtering parameter, and said controller sets the spatial filtering parameter for the spatial filtering operation in accordance with the formation of paper.
Claim 6
Dependent Claim
54 words
The image forming apparatus according to claim 1 , wherein said image formation section includes a correction section adapted to subject an image to γ correction in accordance with a 7 correction operation parameter, and said controller sets the γ correction operation parameter for the γ correction in accordance with the formation of paper.
Claim 7
Dependent Claim
58 words
The image forming apparatus according to claim 1 , wherein said image formation section includes a screen section adapted to perform a screen operation in accordance with the number of screens corresponding to a screen processing parameter, and said controller sets the screen processing parameter for instructing the number of screens in accordance with the formation of paper.
Claim 8
Dependent Claim
56 words
The image forming apparatus according to claim 1 , wherein said image formation section includes a screen section adapted to perform a screen operation in accordance with a growth pattern corresponding to a growth pattern parameter, and said controller sets the growth pattern parameter for instructing the growth pattern in accordance with the formation of paper.
Claim 9
Dependent Claim
87 words
The image forming apparatus according to claim 1 , wherein said image formation section is constructed so as to adjust a voltage to be used for electrification in accordance with an electrification parameter and includes an image formation engine which electrifies a photosensitive member, forms a latent image by exposing the photosensitive member in accordance with an image to be formed, and develops the latent image; and wherein said controller sets the electrification parameter for adjusting the voltage for electrification in accordance with the formation of paper.
Claim 10
Dependent Claim
86 words
The image forming apparatus according to claim 1 , wherein said image formation section is constructed so as to adjust a voltage to be used for exposure in accordance with an exposure parameter and includes an image formation engine which electrifies a photosensitive member, forms a latent image by exposing the photosensitive member in accordance with an image to be formed, and develops the latent image; and said controller sets the exposure parameter for adjusting the voltage for exposure in accordance with the formation of paper.
Claim 11
Dependent Claim
88 words
The image forming apparatus according to claim 1 , wherein said image formation section is constructed so as to adjust a voltage to be used for development in accordance with a development parameter and includes an image formation engine which electrifies a photosensitive member, forms a latent image by means for exposing the photosensitive member in accordance with an image to be formed, and develops the latent image; and said controller sets the development parameter for adjusting the voltage for development in accordance with the formation of paper.
Claim 12
Dependent Claim
71 words
The image forming apparatus according to claim 1 , wherein said image formation section has an image formation engine for transferring an image formed on an image carrier onto paper and is constructed so as to adjust a voltage or current for transfer in accordance with a transfer parameter; wherein said controller sets the transfer parameter for adjusting the voltage or current for transfer in accordance with the formation of paper.
Claim 13
Dependent Claim
68 words
The image forming apparatus according to claim 1 , wherein said image formation section has an image formation engine for fixing an image formed on an image carrier onto paper and is constructed so as to adjust a fixing temperature in accordance with a fixing temperature parameter; and wherein said controller sets the fixing temperature parameter for adjusting the fixing temperature in accordance with the formation of paper.
Claim 14
Dependent Claim
68 words
The image forming apparatus according to claim 1 , wherein said image formation section has an image formation engine for fixing an image formed on an image carrier onto paper and is constructed so as to adjust a fixing pressure in accordance with a fixing pressure parameter; and wherein said controller sets the fixing pressure parameter for adjusting the fixing pressure in accordance with the formation of paper.
Claim 15
Dependent Claim
54 words
The image forming apparatus according to claim 1 , further comprising an operation section adapted to enable a user to effect settings pertaining to formation of paper; and wherein said controller sets a parameter on said image formation section in accordance with the settings pertaining to formation of paper effected by said operation section.
Claim 16
Dependent Claim
52 words
The image forming apparatus according to claim 1 , further comprising an external interface section adapted to exchange information with the outside; and wherein said controller sets a parameter on said image formation section in accordance with the settings pertaining to formation of paper received by way of the external interface section.
Claim 17
Dependent Claim
48 words
The image forming apparatus according to claim 1 , further comprising a sensor adapted to detect information about formation of paper, and wherein said controller sets a parameter on the image formation section in accordance with the settings pertaining to the formation of paper detected by said sensor.
Claim 18
Dependent Claim
73 words
The image forming apparatus according to claim 1 , wherein the formation of the paper is represented by formation index (FI); and wherein the FI is defined by the following expression FI=peak value (degree)/(number of classes of 100 degrees×100) where the peak value and the number of classes of 100 degrees are obtained from measurement of levels of gray scale when light is applied to the paper and is passed through the paper.
Claim 19
Dependent Claim
82 words
An image forming apparatus comprising: an image formation section adapted to enable setting of various parameters and forming an image on paper; a setting section adapted to set formation information of the paper indicating formation of the paper in several stages; and a controller adapted to set the parameters on the image formation section on the basis of the formation information of the paper set by said setting section to reduce inconsistencies appearing on the image due to formation of the paper.
Claim 20
Dependent Claim
82 words
An image forming apparatus comprising: an image formation section adapted to enable setting of various parameters and forming an image on paper; a setting section adapted to set formation information of the paper indicating formation of the paper in several stages; and a controller adapted to set the parameters on the image formation section on the basis of the formation information of the paper set by said setting section to reduce inconsistencies appearing on the image due to formation of the paper.
Claim 21
Dependent Claim
22 words
The image forming apparatus according to claim 18 , wherein the formation information of the paper includes formation information of plain paper.
Claim 22
Dependent Claim
28 words
The image forming apparatus according to claim 18 , wherein the formation information of the paper which is set by said setting section is a predetermined, fixed value.
Claim 23
Dependent Claim
39 words
The image forming apparatus according to claim 18 , wherein said controller has a storage section adapted to store the formation information set by said setting section and parameters of said controller so as to correspond to each other.
Claim 24
Dependent Claim
50 words
The image forming apparatus according to claim 18 , wherein said image formation section has an image formation engine constructed so as to adjust a fixing temperature according to a fixing temperature adjustment parameter, and said controller sets the fixing temperature lower as the formation of the paper becomes poorer.
Claim 25
Dependent Claim
104 words
An image forming apparatus comprising: an image formation section adapted to enable setting of various parameters and forming an image in accordance with the parameters, wherein the image formation section includes (a) a correction section adapted to subject the image to γ correction, and (b) a screen section adapted to subject the image to screen processing in accordance with a number of screens and a growth pattern; and a controller adapted to set the parameters for the γ correction in the correction section and for the number of screens and the growth pattern in the screen section in accordance with formation of the paper.
Claim 26
Dependent Claim
104 words
An image forming apparatus comprising: an image formation section adapted to enable setting of various parameters and forming an image in accordance with the parameters, wherein the image formation section includes (a) a correction section adapted to subject the image to γ correction, and (b) a screen section adapted to subject the image to screen processing in accordance with a number of screens and a growth pattern; and a controller adapted to set the parameters for the γ correction in the correction section and for the number of screens and the growth pattern in the screen section in accordance with formation of the paper.
Claim 27
Dependent Claim
128 words
An image forming apparatus comprising: an image formation section adapted to enable setting of various parameters and forming an image on paper, wherein the image formation section includes (a) a correction section adapted to subject an image to γ correction, and (b) a screen section adapted to subject an image to screen processing in accordance with a number of screens and a growth pattern; a setting section adapted to set formation information of the paper indicating the formation of the paper in several stages; and a controller adapted to set the parameters for the γ correction in the correction section and for the number of screens and the growth pattern in the screen section on the basis of the formation information of paper set by said setting section.
Claim 28
Dependent Claim
128 words
An image forming apparatus comprising: an image formation section adapted to enable setting of various parameters and forming an image on paper, wherein the image formation section includes (a) a correction section adapted to subject an image to γ correction, and (b) a screen section adapted to subject an image to screen processing in accordance with a number of screens and a growth pattern; a setting section adapted to set formation information of the paper indicating the formation of the paper in several stages; and a controller adapted to set the parameters for the γ correction in the correction section and for the number of screens and the growth pattern in the screen section on the basis of the formation information of paper set by said setting section.
References Cited (Backward Citations)
JPH0439223A
Cited
JPH05104754A
Cited
US5662995A
Cited
JPH0969960A
Cited
US5809367A
Cited
JPH1055085A
Cited
US6091520A
Cited
US6219498B1
Cited
US6236815B1
Cited
US5956543A
Cited
US6253041B1
Cited
US6336007B1
Cited
US6157791A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-06-09 | 2006-12-09 | 2007-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-06-09 | 2010-12-09 | 2011-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-06-09 | 2014-12-09 | 2015-06-10 | $7700.00 | Window Closed / Lapsed |