Patent application number | Description | Published |
20090290883 | APPARATUS AND METHOD FOR ADJUSTING TONER CONSUMPTION - An apparatus and method for controlling an amount of toner used to reproduce an image in an image forming apparatus includes receiving image data for an image to be reproduced and determining an image type for the received image data. A first toner saving function is if the determined image type is a first image type. A second toner saving function, different from the first toner saving function, is used if the determined image type is a second image type, different from the first image type. | 11-26-2009 |
20100098444 | IMAGE FORMING APPARATUS, IMAGE FORMING METHOD AND IMAGE PROCESSING APPARATUS - An image forming apparatus includes a laser array in which n light emitting sources are arrayed, an image-input converting unit configured to create, for each of channels of the laser array, a recording pattern for executing PWC from input image data and extract recording patterns of an nth channel and a first channel of the next scanning of the laser array, an overlapping control unit configured to calculate the width of laser pulses in the same position in a main scanning direction as overlapping width, a data correcting unit configured to reduce laser pulse width by a reduction amount corresponding to the calculated overlapping width and correct the laser pulse width, and a laser driver configured to control the intensity of laser beams in the respective channels of the laser array according to the recording patterns after the correction. | 04-22-2010 |
20110148956 | INKJET RECORDING APPARATUS - An inkjet recording apparatus comprising; a recording portion for recording an image on a recording medium, said recording portion having an inkjet head unit including a plurality of connected line heads, an acquisition portion for acquisitioning pixel information indicated by a pixel of a document, a memory portion for storing position information of a joint portion of said head unit and head property information, a prediction portion for seeking output property by each printing directions based on said pixel information, said position information and said head property information, a direction conversion portion for converting a printing direction to reduce influence of the joint portion of said head unit on the document based on the output property acquired by said acquisition portion and said direct conversion output to said recording portion. | 06-23-2011 |
Patent application number | Description | Published |
20090073468 | IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD AND IMAGE FORMING APPARATUS - An image processing apparatus includes a contour pixel extraction unit configured to extract a contour pixel component from a bit plane. The bit plane is a set of bits, the number of which is equal to the number of pixels, and each of which is 1 bit of a plurality of bits representing an intensity of each of pixels. Also provided is a connectedness detection unit configured to detect equivalent bits adjacent to each other in a window including a bit corresponding to a target pixel on the bit plane. Also provided is a filter unit configured to reduce an intensity of the target pixel by a reduction amount determined in accordance with the contour pixel component extracted by the contour pixel extraction unit and the equivalent bits adjacent to each other detected by the connectedness detection unit. | 03-19-2009 |
20090109453 | IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD - An image forming apparatus includes an electrophotographic printer including a printer controller that performs an image processing on image data into which a page description language is developed and outputs the data to a printer engine, and the printer engine to perform printing of an image based on the image data transmitted from the printer controller, and an image quality maintaining control device to maintain image quality of the printer, and the image quality maintaining control device includes a halftone parameter control unit to change a halftone parameter when an image quality maintaining control processing of the printer is executed. According to the image forming apparatus, an image more stable than the related art can be maintained against an image quality variation caused by a mechanism or a process influenced by aging or environmental variation. | 04-30-2009 |
20090135449 | IMAGE FORMING APPARATUS - An image forming apparatus includes a pattern formation unit which forms a first gradation screen pattern on an image carrier unit at a non-image formation operation, a gradation characteristic determination unit which determines a gradation characteristic from the first gradation pattern formed by the pattern formation unit, a first gradation correction characteristic determination unit which determines a first gradation correction characteristic from the gradation characteristic determined by the gradation characteristic determination unit, a characteristic detection unit which detects a change characteristic in the image forming apparatus just before image formation, a pattern correlation characteristic correction unit which determines a pattern correlation characteristic corresponding to the change characteristic detected by the characteristic detection unit and a second gradation correction characteristic determination unit which determines a second gradation correction characteristic by performing an arithmetic operation on the first gradation correction characteristic and the pattern correlation characteristic. | 05-28-2009 |
20090207196 | IMAGE FORMING APPARATUS AND CONTROL METHOD THEREOF - An image forming apparatus according to the invention includes: a first image printing module that prints an image on a recording paper; and a second image printing module capable of printing by a paper feeding system that is serial to the first image printing module in the case of printing on a recording paper that is identical to the recording paper, and capable of printing simultaneously with and parallel to the first image printing module by a paper feeding system that is parallel to the first image printing module in the case of printing on a recording paper that is different from the recording paper. With the image forming apparatus according to the invention, highly flexible apparatus configurations and function configurations are realized and therefore the diversification in technology and diverse applications by users can be dealt with. | 08-20-2009 |
20090213433 | SCREEN GENERATING APPARATUS, SCREEN GENERATING METHOD, AND IMAGE PROCESSING APPARATUS - Disclosed is a method of generating a screen for an image processing apparatus, which reproduces a multi-gradation image in one pixel using a PWM technique for controlling a pulse width and reference position data. The method includes inputting image data with a first resolution, virtually increasing the first resolution to a second resolution using the reference position data, and generating a screen with the second resolution with respect to the image data using two reference vectors based on the reference position data. | 08-27-2009 |
20090244553 | IMAGE PROCESSING SYSTEM AND IMAGE PROCESSING METHOD - An image processing system according to the invention is an image processing system including a printer driver-containing apparatus in which a printer driver is included, an image processing apparatus connected to the printer driver-containing apparatus, and a display apparatus connected to the printer driver-containing apparatus and having a display section. The image processing apparatus has a halftone processing unit configured to perform halftone processing of bitmap data, and a halftone setting unit configured to carry out setting of the halftone processing. | 10-01-2009 |
20090244562 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - An image processing apparatus includes an image input device to convert image data into uncompressed data of CMYK, a gradation processing device to perform a gradation process on the uncompressed data to generate a halftone image, a rearrangement determination device to determine necessity of rearrangement of pixels of the halftone image, a selector to select an output destination based on a rearrangement necessity determination result, a rearrangement device to rearrange the pixels by using a threshold table used at a time of execution of the gradation process of the halftone image, and a coding device to output data obtained by coding data of the halftone image. According to the image processing device, coding efficiency can be improved more than in the related art while a harmful effect (reduction in code amount) due to the rearrangement process is suppressed. | 10-01-2009 |