Quotables
"There is no likelihood man can ever tap the power of the atom."
Robert Millikan, Nobel Prize winner in physics
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7443549 | Image reading apparatus To provide a technology which facilitates positioning of a document to a document table even in a condition of a vertically placed image reading apparatus and by which operability was improved. It is configured in such a manner that, in case that a document cover | 10/28/2008 |
| 7388596 | Method and apparatus of driving a thermal print head to form an image A method and apparatus are provided for driving heaters of a thermal print head in a thermal image transfer. The method divides each of the heaters, which consecutively print at least two color images, into a predetermined number of groups of multiple heaters. The h... | 06/17/2008 |
| 7365759 | Thermal print head and control method thereof A thermal print head is disclosed including plural driver circuits, each for driving plural heating elements; and a strobe signal generator for generating a plurality of strobe signals of different timings in which each strobe signal is coupled to a part of the plur... | 04/29/2008 |
| 7319473 | Thermal recording system and method A recording apparatus includes a plurality of thermal elements, a strobe generator, and a data sequencer. The strobe generator provides a strobe signal comprising a sequence of N pulses, each pulse having a same period, the sequence including a first group of pulses... | 01/15/2008 |
| 7273270 | Ink jet printing device with improved drop selection control An ink jet printing system includes a printhead generating a plurality of continuous ink jets that are in a row and directed toward a print receiving medium. The printhead contains a drop generator and an orifice plate that includes a plurality of nozzles to form th... | 09/25/2007 |
| 7256804 | Arrangement and method for activation of a thermotransfer print head An arrangement for activation of a thermotransfer print head has a unit to determine a transport delay and a unit to generate supplementary heating pulses to maintain a temperature required for printing at the thermo-printing heating elements. The unit to determine ... | 08/14/2007 |
| 7156479 | Image forming apparatus to which attachment unit can be connected A plurality of sheet feed units 11, 12, . . . have the same circuit structure with each other. One ends of sensors 113 through 116 which detect whether there is a sheet and the size of the sheet are connected in parallel with sensors which are d... | 01/02/2007 |
| 7034855 | Printing apparatus The present invention provides a printing apparatus that selects a suitable speed, thereby enabling a rapid printing operation with printing quality maintained. In the printing apparatus, the number of heating elements for every printing line is counted. A printing ... | 04/25/2006 |
| 7023461 | Deconvolution scheme for reducing cross-talk during an in the line printing sequence The present invention relates to a method for reducing or eliminating cross-talk when operating a thermal print head for printing one line on a recording medium. Energizable heater elements of a thermal print head are drivable with at least one activation pul... | 04/04/2006 |
| 6685291 | Printing apparatus and printing method An ink-jet printing apparatus has a printhead with an array of nozzles and can reduce printing time. The printing elements are divided into plural blocks, each having a predetermined number of nozzles. The blocks to be used for printing are selected based... | 02/03/2004 |
| 6601941 | Method and apparatus for predicting and limiting maximum printhead chip temperature in an ink jet printer A method of controlling a temperature of a print chip of a printhead in an ink jet printer includes providing a memory device within the printer. Ink is emitted from the printhead. Temperature data associated with the print chip during the emitting step i... | 08/05/2003 |
| 6570601 | Method of driving a thermal line printer and thermal line printer A thermal line printer drive method and a thermal line printer devised to prevent occurrence of a white gap during printing. A plurality of heating elements arranged on a line perpendicular to a sheet feed direction are separated into a plurality of block... | 05/27/2003 |
| 6467863 | Ink jet recording head, and ink jet recording device There is disclosed an ink jet recording head comprises a plurality of recording elements for applying an energy to discharge ink, a recording element driver for driving the recording elements, a control circuit for controlling the recording element driver... | 10/22/2002 |
| 6417877 | Current supply control method for line thermal head The invention provides a current supply control method used for a line thermal head that is capable of reducing the irregular color and jitter easily and surely. The method is characterized in that heating elements served for divided driving are controlle... | 07/09/2002 |
| 6398433 | Printing method for block copy film and block copy printer There will be provided a printing method for block copy film and a block copy printer capable of adjusting printing density as occasion arises as well as making joints between print lines inconspicuous. A predetermined mount of conveyance of transparent r... | 06/04/2002 |
| 6305774 | Printhead substrate having an ink jet primitive structure that spans both edges of an ink feed channel An ink jet printhead having a first plurality of ink drop generators disposed along a first edge of an ink feed slot, and a second plurality of ink drop generators disposed along a second edge of the ink feed slot that is opposite the first edge. The ink ... | 10/23/2001 |
| 6211893 | Multi-gradation recording method A multi-gradation recording method wherein the recording energy in high density region can be reduced, and the rough appearance in low density region or high density region and notchy appearance in profile or line of the image can be reduced while maintai... | 04/03/2001 |
| 6195110 | Thermal printing method and apparatus having groups of separately drive heating elements in the thermal head A thermal head has plural heating elements arranged in line in a main scan direction. The heating elements are supplied with a train of drive pulses while the thermosensitive recording sheet is conveyed in a sub scan direction crosswise to the main scan d... | 02/27/2001 |
| 6130692 | Printhead operating by time divisional driving of blocks of printing elements, and head cartridge and printer using such a printhead A printhead, constructed with a plurality of common-type element substrates which sandwich a connecting board, which performs printing by utilizing a common-type control signal. The element substrate integrates: a plurality of heaters 101 which are arraye... | 10/10/2000 |
| 6069643 | Thermal Transfer recording apparatus and method to reduce ink sheet sticking A thermal transfer recording apparatus for performing recording of data on a recording medium by transferring ink of an ink sheet on said recording medium comprises conveying means for conveying said ink sheet and recording medium, recording means for eff... | 05/30/2000 |
| 6002417 | Method and apparatus for dynamically sizing and operating enable groups of thermal elements in a printer Both a method and apparatus are provided for sizing and operating enable groups of thermal elements in a thermal printer to allow the printer to be operated by power sources having outputs too small to operate all of the thermal elements simultaneously. P... | 12/14/1999 |
| 5896146 | Time division drive recording apparatus and method A recording apparatus records an image by driving plural recording elements in blocks, into which the plural recording elements are divided. The plural blocks are divided into plural groups, each group having more than one block. A driving circuit drives ... | 04/20/1999 |
| 5867183 | Apparatus for driving multiple ink jet printheads with a single set of drive outputs An ink jet printing apparatus includes a printhead controller including a printhead driver circuit having a set of ink jet nozzle control outputs and a printhead select circuit having a plurality of printhead select outputs. A plurality of printheads are ... | 02/02/1999 |
| 5729275 | Thermal printhead, drive IC for the same and method for controlling the thermal printhead According to the present invention, a plurality of drive ICs (7) are mounted on a thermal printhead (1) which has a predetermined number of heating dots (3). The number of output bits of each drive IC (7) is set to be a divisor of 1/4 of the predetermined... | 03/17/1998 |
| 5717837 | Thermal printer and thermal printer head driving system A thermal printer for forming an image on a sheet, with the image having a plurality of line image data. The thermal printer includes a thermal head having a plurality of linearly arranged thermal elements for forming the image. The total number of the th... | 02/10/1998 |
| 5682504 | Driving technique for printhead of thermal printer to improve print quality A printing apparatus is provided with a thermal head which has a plurality of heatable elements disposed in a line and divided into plural groups. A control unit controls the plural groups of heatable elements in accordance with printing data to generate ... | 10/28/1997 |
| 5671002 | Print head with multiplexed resistances controlling supply of current to image blocks In an LED head operated on a time sharing basis, a multiplexer switches resistances for determining LED currents on LED arrays and assigns appropriate resistance to each array. The multiplexer is operated by block select signals of a block select circuit ... | 09/23/1997 |
| 5539433 | Recording apparatus having a recording head driven in plural blocks There is disclosed a driving device for a recording head such as a thermal head or an ink jet head driven in plural blocks, which is capable of avoiding formation of division lines, or low-density streaks, in the recorded image at the boundaries of the dr... | 07/23/1996 |
| 5528275 | Gradational printing method A gradational printing method for performing a gradational printing by energizing a plurality of heat emitting elements arranged on a thermal head correspondingly to respective bits of digital gradation data representing a gray level. In case of this meth... | 06/18/1996 |
| 5488403 | Printing element drive device having separately operating shift registers A plurality (n) of heating elements are driven by respective drive elements in accordance with printing data stored in first and second shift registers each having at least n/2 memory cells. Common bit-serial printing data is input to the first and second... | 01/30/1996 |
| 5442381 | Thermal head and method for driving the same Disclosed is a thermal head comprising: plural heating elements, and a driving circuit element comprising plural switching elements connected individually to the heating elements, gate elements connected individually to the switching elements, and a shift... | 08/15/1995 |
| 5412405 | Line thermal printer having power supply capacity matched to number of printing dots A line thermal printer has a line thermal head comprised of a plurality of physical blocks arranged in a line. Each physical block has a plurality of heat generation elements to which power is selectively supplied for dot printing a line. A driving circui... | 05/02/1995 |
| 5359352 | Driving method of heat generating resistor in heat recording device A method of driving heating resistors in a thermal recording apparatus comprising dividing a plurality of heating resistors into a plurality of separate blocks. The heating resistors in the blocks are driven by sequentially applying a pulse to each block ... | 10/25/1994 |
| 5172130 | Method and apparatus for regulating thermal recording head temperature A recording apparatus for effecting recording on a recording medium has a plurality of recording elements, heat generation driver for driving the plurality of recording elements for heat generation by block unit, and control unit for controlling the plura... | 12/15/1992 |
| 5159693 | Method for preventing overheating of a thermal line print head by detecting a temperature and adjusting printing blocks A control method prevents overheating of a line print head, the line print head for printing 4800 print dots per print line in response to print data. The print data is initially divided into sixteen blocks of print data denoting successive segments of th... | 10/27/1992 |
| 5097343 | Apparatus for driving thermal printer head image printer An image printer for creating a hard copy of a television image or an image produced by computer graphic having a high image quality. The image printer is provided with an apparatus for driving a thermal printing head having a processor which does not per... | 03/17/1992 |
| 5089831 | Block-divided driving apparatus of gradation thermal printhead A thermal recording apparatus having a thermal head including a plurality of heating element groups each of which consists of a plurality of heating elements driven simultaneously and arranged in a row is so improved that it can record images without form... | 02/18/1992 |
| 5075701 | Thermal recording head having group-wise actuable heating elements A thermal recording head and system including a plurality of heating elements ranged in one line, wherein N groups of heating elements are sequentially selected to be actuated by selecting a respective one of every N number of adjacent heating elements in... | 12/24/1991 |
| 5019836 | Printing method of thermal printer When a print line is printed on a printing paper by supplying a print current to a thermal head, heating elements within the thermal head and a transfer ribbon are easily adhered together due to melted ink on surface of the transfer ribbon. Due to such ad... | 05/28/1991 |
| 4973984 | Thermal-head driving apparatus A thermal-head driving apparatus drives a thermal head having a plurality of heating resistors separated in a plurality of groups and disposed in one line, each of the heating resistors capable of being energized by heating pulses the number of which is c... | 11/27/1990 |
