|
Match
|
Document |
Document Title |
|
|
7623282 |
Image forming apparatus
An image forming apparatus including: a polygon motor that rotates a reflection member; a laser emitting section that emits a laser beam toward a side face of the rotating reflection member; a...
|
|
|
7619796 |
Optical scanning device and image forming apparatus
An aperture has an aperture opening that transmits a predetermined portion of a light beam. A phase optical element changes a phase of a portion of a light beam. A scanning lens focuses the light...
|
|
|
7589878 |
Optical scanning device and image forming apparatus
A common photodetecting unit detects a plurality of beams scanned by a plurality of polyhedral reflection mirrors provided in a multiple stages with a common rotation axis, and generates a...
|
|
|
7586510 |
Image forming apparatus and image deviation correcting method
Image forming units each form an image of one color, which are superimposed to form a color image, and a pattern used for correcting deviation of the image. A first detector positioned at an image...
|
|
|
7561318 |
Optical scanning apparatus and image forming apparatus
A disclosed optical scanning apparatus for scanning a scanning surface using a light beam, the optical scanning apparatus comprises: a light source having a plurality of luminous sources; a...
|
|
|
7518771 |
Optical scanning device and image forming apparatus equipped with the same
An optical scanning device is configured in such a manner that, of four light beams for colors corresponding to black, cyan, magenta, and yellow, the angle of the reflection surface of the last...
|
|
|
7499193 |
Image forming apparatus
There is described an apparatus, which includes an image-forming section to form a multicolor image on a recording medium by recording the unicolor images in such a manner that the unicolor images...
|
|
|
7492381 |
Compensation of MPA polygon once around with exposure modulation
Many xerographic machines have a motor polygon assembly (MPA), which is a rotating polygonal mirror. As the MPA rotates, it reflects a modulated light beam to produce scan lines on a photoreceptor....
|
|
|
7471434 |
Optical scanning device and image forming apparatus
A common photodetecting unit detects a plurality of beams scanned by a plurality of polyhedral reflection mirrors provided in a multiple stages with a common rotation axis, and generates a...
|
|
|
7457024 |
Image display device
The image display device of the present invention includes: a display layer that comprises a photochromic compound and whose regions, which have been irradiated with visible light, can be optically...
|
|
|
7427999 |
Image forming apparatus
A first optical scanning device for scanning image data of colors (yellow, magenta, cyan and black) which serve as the basic for formation of color image employs an optical system having optical...
|
|
|
7415928 |
Printing machines with at least one color support
A printing press has at least one ink carrier. A printing substance, such as ink is applied to the ink carrier and at least some of that ink is transferred to a substrate at a separation location....
|
|
|
7414765 |
Optical scanning device and image forming apparatus using the same
An optical scanning device deflects, by a common optical deflecting part, a plurality of groups of light beams emitted from a plurality of light sources and directs, by a scanning and imaging...
|
|
|
7400335 |
Method for printing a halftone digital image
A method for printing a halftone digital image on both a printing press and a color proofer using the same binary digital data which comprises making a printing plate from the binary digital data;...
|
|
|
7394478 |
Exposure system
An exposure system is provided with an exposure head formed of a red organic EL element which emits light in a red region and another organic EL element which emits light in a predetermined...
|
|
|
7369268 |
Light source using large area LEDs
A printing apparatus ( 100 ) for printing digital images onto a photosensitive medium ( 140 ) employing, for exposure energy, a light source ( 20 ) that uses various arrays of LEDs ( 32 ). The...
|
|
|
7348548 |
Image forming apparatus and image forming method
A printer has a laser emitter for emitting a laser beam to irradiate a surface of a photosensitive member; a reflector, disposed at a position on a laser beam path defined by the laser emitter and...
|
|
|
7327380 |
Apparatus for printing a multibit image
The invention relates to an apparatus for printing a multibit per pixel image ( 10 ) from a halftone binary digital bitmap having pixels having a multibit per pixel image memory for receiving the...
|
|
|
7304777 |
Optical scanning apparatus and image forming apparatus using the same
An overfilled optical scanning apparatus has an incidence optical system for converging a light beam onto a deflection surface of a light deflector which has a plurality of deflection surfaces, and...
|
|
|
7295359 |
Light beam scanner and image forming apparatus
A light beam scanner irradiates surfaces of respective of different image carriers with respective of plural light beams having been subjected to constant angular velocity deflection by a...
|
|
|
7295340 |
Systems and methods for obtaining a spatial color profile, and calibrating a marking system
Tone reproduction curves for calibrating a marking system are obtained using a test pattern with a plurality of patches, preferably a plurality of first test patches extending in a first direction...
|
|
|
7292376 |
Device for digitally generating images
The invention relates to a device for digitally generating images on photosensitive material comprising a light source, a liquid crystal display (LCD) unit and imaging optics. According to the...
|
|
|
7280130 |
Optical multi-beam scanning device and image forming apparatus
An optical multi-beam scanning device has a plurality of pre-deflection optical units, an optical path synthesizing member and an excessive light processing member. The excessive light processing...
|
|
|
7277111 |
Multiple speed modes for an electrophotographic device
An electrophotographic device comprises a printhead having at least one laser associated with a corresponding photoconductive surface. Where multiple laser beams are associated with the same...
|
|
|
7256910 |
Color separation method and printed product of the method
A method is described for overcoming the adverse visual effect of misregistered ink planes in multiple ink color prints. Color separations are initially made in a normal fashion. The separation...
|
|
|
7253924 |
Method of imaging multiple binary bitmaps in a single pass
A method for printing multiple binary bitmaps ( 10 ) with an original density level ( 12 a ) and a color ( 18 ), wherein the color ( 18 ) is the same for all the multiple binary bitmaps ( 10 ), by...
|
|
|
7251055 |
Image forming apparatus having a function for correcting color deviation and the like
An image forming apparatus using an exposure unit of a solid-scanning type such as an LED head, reads out linear distortion correction data of an LED unit, then, calculates an amount of correcting...
|
|
|
7224503 |
Optical scanning apparatus and image forming apparatus using the same
Disclosed is an optical scanning apparatus for repeatedly optically scanning a plurality of surfaces to be scanned, including: a plurality of light sources; an optical deflector for deflecting and...
|
|
|
7218432 |
Optical scanning apparatus and image forming apparatus
A light source which is a surface emitting laser including a plurality of apertures that correspond to light emitting regions arranged in a two-dimensional array and limit the regions, and a...
|
|
|
7218378 |
Digital image processing system
Photographic prints are produced from a virtual negative image on photographic paper. An image formation device coupled with a source of virtual negative images and a displacement actuator coupled...
|
|
|
7218335 |
Image recording apparatus and image recording method
The inventive image recording apparatus records unit images with different combinations of light beams among a plurality of light beams emissive from a recording head when preparing the respective...
|
|
|
7206011 |
Apparatus for and method of recording optically scanned image
An image signal with an overshoot is generated on a positive-going edge of an input image signal with an overshoot producing unit. Then, a light signal with an overshoot is outputted from a...
|
|
|
7199814 |
Direct write holographic printer
A direct write holographic printer for producing RGB color reflection holograms is disclosed. A Nd:YLF crystal ( 1 ) in a laser cavity is excited to produce an emission at 1313 nm which is...
|
|
|
7193762 |
Scanning optical apparatus and image forming apparatus using the same
A scanning optical apparatus having stable optical performance even if the characteristic of a vertical cavity surface emitting laser is fluctuated due to increase in drive current, and an image...
|
|
|
7149019 |
Optical scanning system and image forming apparatus using the same
Disclosed is an optical scanning system and an image forming apparatus using the same, which is designed to reduce the overall size of the system and to make uniform the light spot diameter in a...
|
|
|
7136208 |
Light scanning apparatus and image forming apparatus using the same
A light scanning apparatus capable of printing with a high quality and an image forming apparatus using the same are obtained. The light scanning apparatus is provided with an incidence optical...
|
|
|
7126623 |
Serially connected LED lamps control device
The present invention discloses a serially connected LED lamps control circuit device, which is applicable for an integrated circuit and has the following three features: using a buffer circuit to...
|
|
|
7034972 |
Optical scanning device and image forming apparatus using the optical scanning device
An optical scanning device has an incident optical system that makes a light beam emitted from a light source unit enter to a deflection surface of an optical deflector in a state in which the...
|
|
|
7012628 |
Image forming method
A printer CPU controls rotations of a photosensitive drum for black and photosensitive drums for other colors such that a phase angle difference between the photosensitive drum for black and the...
|
|
|
7006269 |
Multi-beam scanning device
A multi-beam scanning device includes a multi-beam light source unit that emits a plurality of light beams having different wavelengths. The light beams are aligned in a main scanning direction....
|
|
|
6987594 |
Optical scanning apparatus
Provided is an optical scanning apparatus for optically scanning a surface to be scanned, including: a light source unit that emits a beam modulated according to an image signal; a condenser lens...
|
|
|
6980343 |
Optical scanning apparatus and image forming apparatus using the same
In an optical scanning apparatus having a light source, an incidence optical system for causing a beam emitted from the light source to be incident on a deflector, an imaging optical system for...
|
|
|
6943919 |
Method and apparatus for correcting defects in a spatial light modulator based printing system
A method for correcting defects ( 300 ) in an imaging system ( 10 ) that comprises several steps. Transmitting a digital image ( 370 ) to at least one spatial light modulator and capturing the...
|
|
|
6930699 |
Optical printing device
An optical printing device for exposing a photosensitive recording medium to form a grayscale image includes a print head having n rows of recording elements capable of exposure of different colors...
|
|
|
6839157 |
Method and apparatus for multi-beam optical scanning capable of effectively adjusting a scanning line pitch
An optical scanning apparatus includes light sources, an aperture having, and coupling lenses. Numbers of the light sources and the coupling lenses are equal to each other and the apparatus...
|
|
|
6836277 |
Sensor attachment position determining method, image forming apparatus, and image forming method
In this invention, the relationship between the attachment position of a sensor and the formation positional shift of a color image is checked by moving a color misregistration detection sensor...
|
|
|
6825865 |
Printhead with liquid crystal shutter
The present invention relates to a print head ( 3 ) including an illuminator ( 5 ) for emitting light in a line extending in a primary scanning direction, a liquid crystal shutter ( 6 ) for...
|
|
|
6740869 |
Light beam scanning device for micro-area light source
Microarea light-emitting diodes, which have no variation in light output power the like due to mode-hopping, are used and changes in properties such as light output and the like due to generated...
|
|
|
6717601 |
Printing apparatus with dot-gain compensation using spatial filter
An apparatus and method for applying dot-gain ( 110 ) compensation to halftone bitmap files used in printing a digital halftone image. Dot-gain is added by thresholding ( 250 ) the output of a...
|
|
|
6693752 |
Image forming apparatus
An image forming apparatus includes: a pattern generator for generating pattern data for recording a set of test patterns at respective specified positions thereof on the recording sheet; a...
|