| Patent Number |
Title Of Patent |
Date Issued |
| 7564591 |
Image processing apparatus and image processing method |
July 21, 2009 |
| In a printer, when difference in ejection characteristic among nozzles appears as density non-uniformity and the way of letting the density non-uniformity appear is different depending upon kind of image, proper density correction is performed. Specifically, the kind of image to be p |
| 7552985 |
Image printing apparatus and image printing method |
June 30, 2009 |
| In an image printing apparatus for printing an image by combining dots of a plurality of sizes, a banding problem attributable to variations in conveying operation, and a temperature rise of a print head with an increase of the number of ejections are solved with a relatively simple |
| 7552984 |
Inkjet recording apparatus and inkjet recording method |
June 30, 2009 |
| An inkjet recording apparatus includes a recording head having a nozzle array of plural nozzles capable of discharging ink. The inkjet recording apparatus performs a scanning/recording operation for forming an image on a recording medium by shifting the recording head in a main scanning |
| 7549720 |
Ink-jet recording device and ink-jet recording control method |
June 23, 2009 |
| An ink-jet recording device is capable of correcting a recording position due to a leaning of a printing head and correcting of driving timing between multiple printing heads. Each nozzle row of a printing head is classified into multiple nozzle groups, and the driving timing of the |
| 7515318 |
Image processing apparatus, image processing process and program |
April 7, 2009 |
| In an image processing method, on the basis of input image data with respect to a target pixel, independent multi-level data (g0, g1) corresponding to respective plural species of dots which are different in at least one of a density and a diameter are generated, and then data (O0, O |
| 7494200 |
Recording apparatus and recovery control method |
February 24, 2009 |
| A control method at the time of preliminary ejection of ink is changed between a recording area in which a nozzle used for recording is not switched every recording scanning and a recording area in which the nozzle for recording is switched every recording scanning, whereby the preli |
| 7460264 |
Recording apparatus, recording system, and method of controlling recording apparatus |
December 2, 2008 |
| A recording apparatus having a plurality of interfaces capable of communicating with external devices performs recording based on recording data input through any one of the plurality of interfaces. The recording apparatus determines which interface is used for receiving the recording |
| 7455379 |
Bidirectional printing method and apparatus with reduced color unevenness |
November 25, 2008 |
| A printing apparatus, which forms a color image by applying different color inks to a printing material while bi-directionally moving the recording head to scan the recording material, includes a changing unit for changing an order of applications of the inks of different colors to b |
| 7429094 |
Ink-jet recording device and dot-pattern recording method |
September 30, 2008 |
| A recording device drives a recording head mounted on a carriage while main-scanning by moving the carriage in a direction generally orthogonal to the sheet-feeding direction of a sheet. The recording device drives a first nozzle of the recording head at an upstream side in the sheet |
| 7344219 |
Ink jet printing apparatus and ink jet printing method |
March 18, 2008 |
| When a printing position is displaced by an inclination of a printing head, for example, the displacement can be corrected in an easy and effective manner and a user can easily recognize the displacement of the printing position to correct the displacement. To realize this, dots for |
| 7325900 |
Printing apparatus and inclination correction method |
February 5, 2008 |
| When bidirectional multi-pass printing is carried out by use of a printing head having an inclination, even if a bidirectional printing is somewhat displaced, an inclination of a printing position is corrected in a state where "band unevenness" is suppressed as much as possible. In order |
| 7296877 |
Ink jet printing apparatus and print position setting method |
November 20, 2007 |
| An ink jet printing apparatus and a print position adjusting method capable of easily adjusting a relative print position between nozzle lines are provided. Images are printed on a print medium in a drive mode A and a drive mode B by using a print head which has first and second nozz |
| 7296872 |
Printing apparatus and method of adjusting printing position |
November 20, 2007 |
| Image deterioration is suppressed as much as possible which is complexly generated by variations of printing positions respectively of printing elements in a printing element row and by displacement of printing positions among printing element rows. To this end, a first adjustment va |
| 7290855 |
Printing apparatus and printing method |
November 6, 2007 |
| When conveying tables for conveying the printing medium are selected to perform interlace printing, the occurrence of unevenness in an image which results from switching of the tables is prevented. It is determined whether a phase of the conveying table is a transfer inhibition phase in |
| 7131713 |
Bidirectional printing method and apparatus with reduced color unevenness |
November 7, 2006 |
| A printing apparatus, which forms a color image by applying different color inks to a printing material while bi-directionally moving the recording head to scan the recording material, includes a changing unit for changing an order of applications of the inks of different colors to b |
| 7079283 |
Printing apparatus, printing method, data processing method and recording material |
July 18, 2006 |
| A data processing method for generating print data to be supplied to a printing apparatus capable of multi-value recording, includes a multi-value conversion step of converting obtained image data to multi-value print data; a binarizing step of converting the obtained image data to b |
| 7032991 |
Two-way print apparatus and print method |
April 25, 2006 |
| Two sets of recording heads for applying ink of cyan (C), magenta (M), and yellow (Y) are arranged in symmetry in a scanning direction and orders of colors C and M ejected onto a pixel of a secondary color are set to symmetric orders (C.fwdarw.M and M.fwdarw.C). This makes the applicatio |
| 7011391 |
Bidirectional printing method and apparatus with reduced color unevenness |
March 14, 2006 |
| A printing apparatus, which forms a color image by applying different color inks to a printing material while bi-directionally moving the recording head to scan the recording material, includes a changing unit for changing an order of applications of the inks of different colors to b |
| 6899413 |
Bidirectional printing method and apparatus with reduced color unevenness |
May 31, 2005 |
| A printing apparatus, which forms a color image by applying different color inks to a printing material while bi-directionally moving the recording head to scan the recording material, includes a changing unit for changing an order of applications of the inks of different colors to be ap |
| 6832825 |
Test pattern printing method, information processing apparatus, printing apparatus and density v |
December 21, 2004 |
| An apparatus and method capable of obtaining an output characteristic of the print unit and determining a correction value for an output density, without using an expensive scanner. To realize this, a nozzle array consisting of a plurality of nozzles provided in the print head is divided |
| 6805422 |
Ink jet recording method, recording apparatus and data processing method |
October 19, 2004 |
| An ink jet recording apparatus for effecting recording on a recording material by ejecting ink with relative scanning movement between a recording head and the recording material, the ink jet recording apparatus, including obtaining means for obtaining information indicative of an am |
| 6729710 |
Ink jet recording apparatus and method with reduced banding |
May 4, 2004 |
| An ink jet recording apparatus for effecting recording on a recording material by ejecting ink through a plurality of ejection outlets in units of band with relative scanning movement between a recording head and the recording material, the ink jet recording apparatus, includes obtaining |
| 6629743 |
Ink jet recording method, recording apparatus and data processing method |
October 7, 2003 |
| An ink jet recording apparatus, for effecting recording on a recording material by ejecting a plurality of inks with relative scanning movement between a recording head and the recording material, includes an obtaining unit for obtaining relative information indicative of a relative rela |
