Patent application number | Description | Published |
20090278884 | FLUID EJECTING APPARATUS - A fluid ejecting apparatus includes an ejection head having an ejection surface with a nozzle region and a capping device that contacts the ejection surface. The capping device includes first and second contact members held by a cap body. When the first contact member contacts the ejection surface, a surface of the first contact member surrounds the nozzle region. The second contact member is formed in a closed frame-shape to be disposed outside a surface of the first contact member opposite the surface of the first contact member. The cap body includes first and second suction ports. The first suction port decompresses a first space formed between the first contact member and the ejection surface when the capping device contacts the ejection head. The second suction port decompresses a second space formed between the second contact member and the ejection surface when the capping device contacts the ejection head. | 11-12-2009 |
20110090267 | LIQUID EJECTING APPARATUS - A liquid ejecting apparatus that ejects liquid from an ejecting nozzle provided in an ejecting head includes a first container that contains a first liquid and a second container that contains a second liquid. The liquid ejecting apparatus includes a channel that selectively communicates with either the first or second container to supply the liquid contained therein to the ejecting head, a switching unit that performs a switching operation of switching between a first communicating state in which the channel communicates with the first container and a second communicating state in which the channel communicates with the second container. In addition, if the remaining amount of the second liquid contained in the second container is less than a predetermined value, prohibits the switching unit from performing the switching operation of switching from the second communicating state to the first communicating state. | 04-21-2011 |
20110090270 | LIQUID EJECTING APPARATUS - A liquid ejecting apparatus that ejects a liquid containing a sedimentary component from an ejection nozzle provided in an ejection head includes: a liquid channel that conducts the liquid to the ejection head; a liquid discharge unit that discharges the liquid from the ejection nozzle. The liquid channel is provided with a first channel region and a second channel region; and the liquid discharge unit discharge a predetermined amount of the liquid from the ejection nozzle in the case where the amount of time that has elapsed a predetermined threshold time. | 04-21-2011 |
20110115856 | LIQUID EJECTING APPARATUS - A liquid ejecting apparatus includes: a liquid ejecting head; a liquid receiving section; a suction pump that is connected the liquid receiving section; a first liquid containing section that contains first liquid; a second liquid containing section that contains second liquid. When the second liquid in the liquid ejecting head is exchanged for the first liquid, the liquid ejecting head eject the liquid toward the liquid receiving section in a state in which the liquid receiving section is away from the liquid ejecting head, and when the first liquid in the liquid ejecting head is exchanged for the second liquid, the suction pump to operate in a state in which the liquid receiving section has been brought into contact with the liquid ejecting head to cover the ejection nozzles. | 05-19-2011 |
20130286114 | LIQUID EJECTING APPARATUS - A liquid ejecting apparatus includes a liquid ejecting head, an ink supply tube that supplies ink to the liquid ejecting head, a pressure control valve that opens as a result of depressurization on the liquid ejecting head side, a check valve provided upstream from the pressure control valve, an ink circulation tube that is connected at both ends to the ink supply tube between the pressure control valve and the check valve, and a tube pump provided in the ink circulation tube; in this configuration, by providing at least one of an ink return tube and a liquid reservoir portion that is capable of holding liquid in a liquid flow channel in a pressurized state, a rise in pressure within a circulating flow channel caused by pump operations can be suppressed. | 10-31-2013 |
20140285589 | LIQUID EJECTING APPARATUS - A liquid ejecting apparatus includes a liquid ejecting head, an ink supply tube that supplies ink to the liquid ejecting head, a pressure control valve that opens as a result of depressurization on the liquid ejecting head side, a check valve provided upstream from the pressure control valve, an ink circulation tube that is connected at both ends to the ink supply tube between the pressure control valve and the check valve, and a tube pump provided in the ink circulation tube; in this configuration, by providing at least one of an ink return tube and a liquid reservoir portion that is capable of holding liquid in a liquid flow channel in a pressurized state, a rise in pressure within a circulating flow channel caused by pump operations can be suppressed. | 09-25-2014 |
Patent application number | Description | Published |
20080298634 | IMAGE PROCESSING APPARATUS AND METHOD OF CONTROLLING THE SAME - To provide a technique of embedding information in a document image containing character strings, photos, and graphics, an image processing apparatus for inputting a document image and embedding watermark information by controlling the line spacing between character strings in the document image includes an input unit which inputs a document image as image data, an image reduction unit which generates reduced image data from the image data, a determination unit which determines reduced objects corresponding to character strings in the image data, a specifying unit which specifies the position of each character string in the image data based on the positions of the reduced objects in the reduced image data, and an embedding unit which embeds the watermark information in the image data by moving the positions of a plurality of specified character strings in the image data based on a preset line spacing correspondence relationship. | 12-04-2008 |
20090097075 | INFORMATION PROCESSING APPARATUS AND METHOD - An information embedding apparatus ( | 04-16-2009 |
20090175493 | IMAGE PROCESSING APPARATUS AND METHOD OF CONTROLLING THE SAME - To accurately extract embedded information from a document image using line spacing watermark, an image processing apparatus for extracting watermark information includes an input unit which inputs a document image as image data, an image reduction unit which generates, from the image data, reduced image data reduced in the first direction, a detection unit which scans the reduced image data in the second direction and detects the length of a blank region as line spacing information, and an extraction unit which extracts watermark information embedded in the document image based on the line spacing information. | 07-09-2009 |
20090320126 | INFORMATION PROCESSING APPARATUS AND METHOD - An information processing apparatus sets positional relationship information indicating positional relationship between a designated position, which is to be designated on a screen by a user in a case where a plurality of images inclusive of the pass image are displayed on the screen at the time of authentication, and a display position of the pass image (S | 12-24-2009 |
20100103470 | DOCUMENT PROCESSING APPARATUS AND DOCUMENT PROCESSING METHOD - Line spacing values in a document image are extracted and a variance is calculated for fluctuations in the line spacing values. When the calculated variance is higher than a preset threshold value, the document image is determined as having watermark information embedded therein. Such use of the variance in the line spacing values enables high-speed determination of the presence or absence of line-spacing watermark information. At this time, it is possible to speed up the determination by using only some line spacing values in the document, instead of using all line spacing values. | 04-29-2010 |
20100104130 | DOCUMENT PROCESSING APPARATUS AND DOCUMENT PROCESSING METHOD - Character spacing values in a document image are extracted and a variance is calculated for fluctuations in the character spacing values. When the calculated variance is lower than a preset threshold value, the document image is determined as having watermark information embedded therein. Such use of the variance in the character spacing values enables high-speed determination of the presence or absence of character-spacing watermark information. At this time, it is possible to speed up the determination by using only some character spacing values in the document, instead of using all character spacing values. | 04-29-2010 |
20110090520 | IMAGE PROCESSING APPARATUS AND CONTROL METHOD THEREOF - An image processing apparatus for generating a print image which can be easily visually recognizable under a particular light source, without using special ink, by utilizing a characteristic of a print medium. A color information holding unit holds first color information and second color information indicating different ink use amounts in a print unit per unit area on a print medium, and a color difference equal to or less than a predetermined value under ordinary light. In accordance with a value of a pixel of binary latent image data delivered from a latent image generator, a discrimination image data generator print-outputs one of the first color information and the second color information as print data with respect to the pixel. | 04-21-2011 |
20110158530 | INFORMATION PROCESSING APPARATUS, VERIFICATION APPARATUS, AND METHODS OF CONTROLLING THE SAME - This invention specifies the presence/absence of alteration and an alteration position. A block division unit divides image data into image data of a first unit including a predetermined number of pixels. A block calculation unit calculates an image data coefficient of the first unit. A cell division unit divides one image data of the first unit into image data of a second unit. A cell calculation unit calculates an image data coefficient of the second unit. First verification data is generated by selecting two image data coefficients of the first unit and generating, for one pair, data representing the magnitude relation of the image data coefficients of the first unit. Second verification data is generated by selecting two image data coefficients of the second unit and generating, for one pair, data representing the magnitude relation of the image data coefficients of the second unit. | 06-30-2011 |
20120127492 | IMAGE PROCESSING APPARATUS AND CONTROL METHOD THEREOF - This invention can generate printed matter on which a multi-valued discrimination image of three values or more cannot be visually confirmed under ordinary light but can be visually confirmed via an infrared camera under infrared light. To this end, a holding unit holds items of color information C | 05-24-2012 |
20120127493 | INFORMATION GENERATION APPARATUS, INFORMATION GENERATION METHOD, IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - For a selected pixel value, amounts of color material used of respective color materials used to print a background region, and those of respective color materials used to print a latent image region are calculated. The calculated amounts of color material used are stored in a memory in association with the selected pixel value. Amounts of color material used corresponding to respective pixel values of a pixel value group are read out from the memory, and are output to a printing apparatus. | 05-24-2012 |
20120127545 | IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD - When a lightness level expressed by a selected pixel value is equal to or larger than a threshold, the use amounts of respective color materials of a first color material group, and those of respective color materials of a third color material group are stored in a memory in association with the selected pixel value. On the other hand, when the lightness level expressed by the selected pixel value is smaller than the threshold, the use amounts of respective color materials of the first color material group, and those of respective color materials of a second color material group are stored in the memory in association with the selected pixel value. | 05-24-2012 |