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7626722 |
Image recording apparatus
There is provided an image recording apparatus able to form images without fluctuation of image dot intervals in the main scan direction. The image recording apparatus comprises a light emitting...
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7570388 |
Exposure device
The invention provides an exposure apparatus that outputs a stable photographic quality image unaffected by variations in ambient temperature, by suppressing the effects of the temperature...
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7561299 |
Personalized gift cards for imaging products and services
A method for producing a gift card for a gift imaging product, comprises receiving an order of the gift imaging product from a user, producing the gift imaging product, producing the gift card by...
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7489418 |
High-resolution sensing method for scanner
A high-resolution sensing method for a scanner having a motor and a charge coupled device. The charge coupled device further has m rows of sensors spaced a distance from each other. A motor with a...
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7480066 |
Modulated video waveform generator
A video controller includes a video block that connects to the print control engine and one laser driver. The video block includes a direct memory access (DMA) block, a video processor, a waveform...
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7443534 |
Video clock generation apparatus and method
A video clock generation apparatus and method are provided. The apparatus comprises a ring oscillator for generating an oscillation frequency; a loopspeed detection unit for detecting a loopspeed...
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7433074 |
Image forming apparatus and image forming method
An image forming apparatus that is capable of scanning at a proper speed at all positions on a main scan line without being affected by variations in the characteristics of a f-θ lens, variations...
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7414759 |
Scanner linearity tester
Linear spot velocity or position variations are measured in a scanning system by a process and apparatus. The process comprises providing at least two radiation detectors that can move in tandem...
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7408679 |
Method, system and program product for multiple pel print quality enhancement
Disclosed is a method, system and program product for performing multiple-pel print quality enhancement (PQE). As in known methods of PQE, a determination is made of an adjusted sub-pulse value of...
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7375847 |
Optical scanning device and image forming apparatus using the same
An optical scanning device has: a first optical system for converting a flux of light that has been emitted from a light source into another flux of light; a second optical system for focusing the...
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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...
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7359082 |
Independent video hardware blocks to support laser printers
A printer includes a direct memory access controller (DMA), a video processor, and a video signal generator. A frequency synthesizer connects to the video signal generator. Configuration registers...
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7339697 |
Apparatus for and method of recording image based on detected recording duty ratio
The intensity of a light beam is controlled accurately depending on an image to be recorded on a photosensitive medium. An apparatus for recording an image by scanning a photosensitive medium with...
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7317547 |
Single compressor with plural decompressors for multi-laser printing
In a laser printer having a plurality of lasers, each of which effectuates the deposition of toner onto lines of a page to be printed, a method of printing several lines substantially...
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7280244 |
Printer simultaneously printing on both surfaces of a sheet
A method of manipulating print data in a printer capable of simultaneously printing on both surfaces of a sheet of print media, the method including the steps of: receiving first data relating to a...
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7280235 |
Print engine for double-sided printing
A print engine for double-sided printing includes a chassis. A pair of substantially identical inkjet printhead assemblies is mounted on the chassis opposite each other. A pair of transfer rollers...
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7265856 |
Method and system for receiving and processing multiple compressed print data streams
A system and method for transmitting multiple data streams from a host to a printing device. Data streams are arranged according to color, segmented and compressed, if desired. If compression is...
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7262878 |
System and method for calibrating an imaging system during imaging
An imaging system is disclosed for imaging recording media. The imaging system includes an input opening through which recording media may be input to the imaging system, and an imaging unit for...
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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...
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7212310 |
Adaptive recording method and apparatus for high-density optical recording apparatus
An adaptive recording method and apparatus for optimizing power of a laser diode is provided. In a method for optimizing read power, peak power and bias power for overwrite pulses and supplying the...
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7199899 |
Image recording method and apparatus
A method of recording a transmission image composed of dots on a recording medium having the steps of; moving a recording medium in a sub-scanning direction, and moving a recording head relatively...
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7190483 |
Image recorder
An illumination lens applies a laser beam emitted from a laser light source onto a light valve. The laser beam divided into a number of beams and modulated in the light valve is reflected by a...
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7187460 |
Host control of printer ready
Printer has a standby state in which the motor driving the laser scanning mirror is turned off immediately after a print job when another page is not ready. To increase operating speed, a signal to...
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7173641 |
Electrostatic printers using micro electro-mechanical switching elements
The present invention relates to a printer system that incorporates an electrically addressable array of micro electro-mechanical switches of arbitrary width. In one embodiment, array of micro...
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7164485 |
Image forming apparatus
When image data from an external device is image data for proof printing, the number of pages of image data is calculated. Further, the percentage of a character image region and the percentage of...
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7110138 |
Apparatus, method and computer program product for performing image formation
An image forming apparatus, method and computer program product, including a pattern detecting device configured detect whether or not a pattern is constructed with a lengthwise line of a single...
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7088468 |
Data-conversion method for a multibeam laser writer for very complex microlithographic patterns
The invention relates to microlithography, in particular to the writing of photomasks for computer displays, microelectronic devices, and precision photoetching. It is also applicable to wafers,...
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7061644 |
Pagewidth printhead controller circuit
An integrated circuit fabricated on a single substrate that includes a first interface to a page-width inkjet printhead and a general-purpose processor that is connected to the first interface. The...
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7057756 |
Image processor, method for processing image, printing apparatus, printing method, program, and storage medium that stores computer-readable program code
The present invention reduces the granularity of the dots for the entire density range by optimally setting formation amounts of a low-density dot and of a high-density dot per unit area. For this...
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7017480 |
Automatic machine for photoengraving screen printing plates for screen printing high quality compact discs
The present invention relates to an automatic machine for photoengraving or photoetching screen printing plates for screen-printing high quality compact discs or CD's, comprising a central control...
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6980322 |
Image forming apparatus in which light emitted by an exposing light source is conducted by an optical waveguide
An image forming apparatus includes a light source for emitting light constituting an optical signal, an optical waveguide for conducting the light emitted by the light source and an engine portion...
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6947172 |
Fixing device for image-forming apparatus
A fixing apparatus for fixing a toner image on a transfer sheet, comprises a fixing roller comprising a cylindrical light-transmitting base body capable of transmitting a heat ray; a...
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6906824 |
Tandem type printer scanning optical system having diffraction lens structure
A tandem type printer is provided with a plurality of scanning optical systems, a plurality of fθ lenses and photoconductive drums, which correspond to the scanning optical systems, respectively....
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6900907 |
Overlapping drop assignment for multi-level ink jet printing
To avoid the image artifacts of a uniform drop-per-pixel, a drop assignment overlap is introduced. Larger and lower drops are printed simultaneously to represent uniform gray level. The regions at...
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6900901 |
Image recording device
When a recording starting point of a color photosensitive material reaches a position on which light beams are focused by a condenser lens and a reflecting mirror, a light beam is emitted from a...
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6882443 |
Pulse width position modulator and clock skew synchronizer
A pulse width position modulator (PWPM) includes a digital delay circuit that outputs multiple subclocks according to a native pixel clock. The multiple subclocks are each skewed within different...
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6856426 |
Solid state scanning type optical recording device
An 8-bit (256 gradient) image is represented using a driver IC of 6-bit (64 gradient) construction to drive a plurality of arrayed optical shutter elements. The image data are divided into 64...
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6850340 |
Image data processing method and apparatus
A method and apparatus for processing original image data that is bit mapped in a main-scanning direction X and a sub-scanning direction Y first multiplies linearly aligned dots in the...
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6836343 |
Method and circuit arrangement for driving laser diodes
In a method and a circuit arrangement for driving laser diodes arranged in close proximity to one another in a laser recording device, video signals modulated with the information to be recorded...
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6795227 |
Method and apparatus for driving light-modulating elements
One embodiment disclosed relates to a system for modulating a plurality of micro-electromechanical (MEM) devices. The system includes a means for providing an amplitude modulation signal to each...
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6778293 |
Fast scan image registration method and apparatus for high addressable video systems
Multiple components of an image produced by an image output device including a raster output scanner are registered by delaying an output high addressable bit stream for a time following each...
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6775018 |
Safety device
A safety device for a printer has a first switch and a second switch that separately determines whether a door of the printer is open or closed. When the door is open (in the state that causes...
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6771389 |
Electrophotographic image formation apparatus
An electrophotographic image formation apparatus, in which there is used a function-separated type layered photoconductor including an electroconductive support on which an undercoat layer, a...
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6760121 |
Beam scanning printer
A beam scanning printer which includes a light mixing device for mixing green, red and blue rays radiated from three LEDs with each other and directing the mixed beam to a common converging optical...
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6757075 |
Image forming device and recording medium storing program
The image forming device has a recording unit which records an image data line by line while scanning a recording medium with a laser; a memory circuit for storing the image data corresponding to a...
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6724492 |
Image forming apparatus capable of performing trial printing, and image forming system
An image forming apparatus having a receipt interface I/F, a hard disk, and a printer section. The receipt interface I/F receives pages of image data transmitted and a partial print request signal...
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6688788 |
Dot-matrix printer and printing method
A dot-matrix printer for printing on a printing medium comprises a dot-forming section for forming dots on the printing medium; and a referenced data section to be referred to during movement of...
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6665454 |
Dot adjacency compensation in optical storage systems using ink dots
A method of accurately detecting the value of a dot of sensed image data, said image data comprising an array of dots and said sensed image data comprising a sampling of said image data at a rate...
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6633400 |
Print system
A print system has: a client apparatus for outputting print data; a printer server apparatus for receiving the print data from the client apparatus, and controlling an output of the print data...
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6628424 |
Digital synthesizer digital copier and magnification control unit
The digital synthesizer comprises a system control unit, a read control unit, and a write drive control unit, and based on a magnification fine adjustment value set using a magnification fine...
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