Title:
IMAGE FORMATION APPARATUS, HALFTONE PROCESSING METHOD AND HALFTONE PROCESSING PROGRAM
Document Type and Number:
Japanese Patent JP2020100068
Kind Code:
A
Abstract:
To provide an image formation apparatus, a halftone processing method and a halftone processing program which prevent or suppress the image defect due to the inclination of a nozzle head while avoiding the increase in the size and cost of the nozzle head.SOLUTION: An image formation apparatus 100 includes a nozzle head 210 in which nozzle arrays 211, 212 are formed, a conveyance unit 240 which moves a sheet 10 with respect to the nozzle head 210 and a halftone processing unit 630. The halftone processing unit 630 classifies a plurality of pixel positions adjacent in the sheet conveyance direction into one group after performing n-value processing for image data. The halftone processing unit 630 calculates the total value of each group to make the total value into multi-value, and rearranges the density of dots at each pixel position of the image data so as to suppress continuous formation of the dots on the sheet 10.SELECTED DRAWING: Figure 1
Inventors:
HORI SATOSHI
MIZUTANI TOSHIYUKI
MIZUTANI TOSHIYUKI
Application Number:
JP2018239681A
Publication Date:
July 02, 2020
Filing Date:
December 21, 2018
Export Citation:
Assignee:
KONICA MINOLTA INC
International Classes:
B41J2/01; B41J2/21
Domestic Patent References:
| JP2012162057A | 2012-08-30 | |||
| JP2009137015A | 2009-06-25 | |||
| JP2002292848A | 2002-10-09 | |||
| JP2006020219A | 2006-01-19 | |||
| JP2007152823A | 2007-06-21 | |||
| JP2001121686A | 2001-05-08 |
Foreign References:
| US20080192078A1 | 2008-08-14 |
Attorney, Agent or Firm:
Hatta International Patent Corporation