ClassID:

229259

H04N1/4015 - CPC Classification

Classification description:

Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof; Picture signal circuits; Compensating positionally unequal response of the pick-up or reproducing head of the reproducing head

Recent Application in this class:
#1
20250227187
2025-07-10

IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND RECORDING MEDIUM

#2
20230283737
2023-09-07

Print artifact compensation mechanism using transfer functions for each color generated based on ink deposition functions for groups of nozzles

#3
20230280672
2023-09-07

Image forming apparatus, control method thereof, and storage medium for correcting variations in light amount from light source

#4
20230239413
2023-07-27

Recording device and control method to perform maintenance, transport correction, or discharge correction based upon a captured image

#5
20230001705
2023-01-05

Printing device, and non-transitory computer-readable recording medium therefor

#6
20220288945
2022-09-15

Defective nozzle correction mechanism using missing neighbor threshold lowering function

#7
20220286579
2022-09-08

Uniformity compensation mechanism using missing neighbor thresholds

#8
20210283923
2021-09-16

Image processing apparatus, image processing method, and storage medium for correcting a measurement value using a recording element that ejects ink

#9
20210031538
2021-02-04

Image processing apparatus, method, and product for reducing color unevenness based on edge information

#10
20200036865
2020-01-30

Recording apparatus and recording method

#11
20200036862
2020-01-30

Recording device for recording recording image by nozzle set reciprocating relative to recording medium, image processing device for generating recording data for recording recording image by nozzle set reciprocating relative to recording medium and recording method for recording recording image by nozzle set reciprocating relative to recording medium

#12
20190381804
2019-12-19

Image processing method, image processing device, and image recording apparatus for suppression generation of beats

#13
20190255861
2019-08-22

Method for compensating for defective printing nozzles in an inkjet printing machine

#14
20190248153
2019-08-15

Method for detecting defective printing nozzles in an inkjet printing machine

#15
20190176465
2019-06-13

Image processing apparatus, printing system, and image processing method

#16
20190134990
2019-05-09

Method and system for compensating for a malfunctioning nozzle

#17
20190092039
2019-03-28

Inkjet printing apparatus and variable-density correction method

#18
20190084299
2019-03-21

Inkjet recording apparatus

#19
20180084147
2018-03-22

Image processing circuit for multi-drop inkjet head

#20
20180022131
2018-01-25

Printing system and method

#21
20180020119
2018-01-18

Selecting colorant amount for printing

#22
20170225486
2017-08-10

Printing control device, printing control method, and printing control program

#23
20170219951
2017-08-03

Semiconductor laser driver and image forming apparatus incorporating same

#24
20170064142
2017-03-02

Method for correcting density irregularity, printing apparatus, and imaging module

#25
20170006185
2017-01-05

Image processing apparatus and method for detecting unique portions periodically distributed in a printed image

#26
20160065754
2016-03-03

Image reading device and image forming apparatus with white reference optical adjustment portions

#27
20160052300
2016-02-25

Image processing method and inkjet recording apparatus

#28
20150296098
2015-10-15

Image processing apparatus, image processing method, and non-transitory computer-readable storage medium

#29
20150286902
2015-10-08

Image forming apparatus using filters to correct potential distribution on photoreceptor due to spot shape of emitted light

#30
20150244901
2015-08-27

Image forming apparatus and image forming method

#31
20140240800
2014-08-28

Image processing device and method of acquiring amount of density deviation of light-emitting-element group

#32
20140152729
2014-06-05

Print control device, inkjet recording apparatus, print control method, and printing system

#33
20140118759
2014-05-01

Processing image data strips in columnar regions

#34
20130321550
2013-12-05

Image forming apparatus and image forming method for correcting registration deviation

#35
20130120803
2013-05-16

Image processing apparatus, image processing method, and computer-readable medium

#36
20130101301
2013-04-25

Image forming apparatus and image forming method

#37
20130076823
2013-03-28

Nozzle shading method, and an inkjet printing apparatus using same

#38
20130057879
2013-03-07

Image processing method, image processing program, and information processing apparatus

#39
20130050388
2013-02-28

IMAGE FORMING APPARATUS

#40
20130003094
2013-01-03

Bidirectional multi-pass inkjet printer suppressing density unevenness based on image information and scan line position of each dot

#41
20120269527
2012-10-25

Electrophotographic printing with column-dependent tonescale adjustment

#42
20120268544
2012-10-25

Printer nonuniformity compensation for halftone screens

#43
20120206530
2012-08-16

Method and system for printhead alignment to reduce or eliminate banding artifacts for interlaced printheads

#44
20120162667
2012-06-28

Image forming and processing apparatuses for requantizing quantized data using sigma-delta modulation and compensating for uneveness of exposure intensity

#45
20120154837
2012-06-21

Defective recording element detecting apparatus and method, and image forming apparatus and method

#46
20120154826
2012-06-21

Image forming apparatus

#47
20120081768
2012-04-05

Image processing apparatus, image processing method, and printer

#48
20120081441
2012-04-05

Image processing apparatus, image processing method, and printer

#49
20110285778
2011-11-24

Image processing apparatus, ink jet printing apparatus, and image processing method

#50
20110285777
2011-11-24

Image processing apparatus, image processing method, inkjet printing apparatus and data generating apparatus

#51
20110236047
2011-09-29

Optical scanning apparatus and technique for correcting optical characteristics in an image forming apparatus that employs an electrostatic recording method or an electrophotographic recording method

#52
20110235060
2011-09-29

SCREENED HARDCOPY REPRODUCTION APPARATUS COMPENSATION DATA CALCULATION

#53
20110235059
2011-09-29

Screened hardcopy reproduction apparatus with compensation

#54
20110228355
2011-09-22

Image forming apparatus

#55
20110222869
2011-09-15

IMAGE FORMING APPARATUS AND IMAGE DENSITY ADJUSTMENT METHOD

#56
20110182602
2011-07-28

Image forming system and image forming apparatus for detecting position deviation and density deviation

#57
20110176155
2011-07-21

Image processing apparatus and image processing method therefor

#58
20110149309
2011-06-23

Memory efficient electronic registration method that compensates image content and prevents halftone moiré

#59
20110141527
2011-06-16

Image processing device and printing apparatus for performing bidirectional printing

#60
20110116136
2011-05-19

Image forming apparatus and image forming method for correcting registration deviation

#61
20110116123
2011-05-19

System and method for attenuating rotating member contamination affecting uniformity measurements in an inkjet imaging device

#62
20110102873
2011-05-05

OPTICAL SCANNING DEVICE AND IMAGE FORMING APPARATUS PROVIDED WITH OPTICAL SCANNING DEVICE

#63
20110101212
2011-05-05

Method for adjusting a spatial light modulator

#64
20110069137
2011-03-24

Optical scanner and imaging apparatus using the same

#65
20100284615
2010-11-11

Spatially based transformation of spot colors

#66
20100245441
2010-09-30

FLUID EJECTING APPARATUS AND METHOD OF CORRECTING PIXEL DATA

#67
20100232652
2010-09-16

System and method for adjusting operation of printheads in an ink printing device

#68
20100220370
2010-09-02

IMAGE READING APPARATUS AND IMAGE FORMING APPARATUS

#69
20100157373
2010-06-24

Method and system for correlating of uniformity compensations across halftone screens

#70
20100149564
2010-06-17

Image forming apparatus and density unevenness correction method therein

#71
20100104304
2010-04-29

Image forming method, optical scanning apparatus and image forming apparatus

#72
20100097657
2010-04-22

Adaptive exposure printing and printing system

#73
20100045722
2010-02-25

Correction of print engine artifacts using an iterative halftoning search algorithm

#74
20100007901
2010-01-14

Bidirectional multi-pass inkjet printer suppressing density unevenness based on interval between scans

#75
20090296174
2009-12-03

Image forming apparatus and density correcting method

#76
20090296164
2009-12-03

IMAGE FORMING APPARATUS AND STABILIZATION CONTROL METHOD

#77
20090290183
2009-11-26

Image processing device, image recording system, image processing method and computer-readable medium

#78
20090273813
2009-11-05

Method of correcting streaks using exposure modulation and spatially varying TRCs

#79
20090262373
2009-10-22

METHOD OF CALCULATING CORRECTION VALUE AND LIQUID EJECTING APPARATUS

#80
20090244578
2009-10-01

IMAGE RECORDING APPARATUS AND METHOD

#81
20090244575
2009-10-01

Image recording apparatus and method

#82
20090237689
2009-09-24

Concentration correcting method

#83
20090195581
2009-08-06

Systems and methods for print head calibration

#84
20090185227
2009-07-23

Image processing apparatus, image processing method, and recording medium for correcting the density at an edge of an image to be printed

#85
20090114858
2009-05-07

Light emitting device, driving method thereof, and image forming apparatus

#86
20090109505
2009-04-30

Method and system for improved sensing with robustness to banding for rendering devices

#87
20090051944
2009-02-26

Image processing method for reducing imaging artifacts

#88
20090041489
2009-02-12

Image forming apparatus, and control method and control program thereof

#89
20090003729
2009-01-01

Fiducial artifact detection and compensation algorithm

#90
20080247007
2008-10-09

Image processing device, image recording device, image processing method, and recording medium with image processing program

#91
20080239344
2008-10-02

Color printer characterization or calibration to correct for spatial non-uniformity

#92
20080231904
2008-09-25

Image processing method, printer driver, image processing apparatus, image forming apparatus and image forming system

#93
20080225905
2008-09-18

APPARATUS, METHOD AND PROGRAM FOR IMAGE FORMING

#94
20080205223
2008-08-28

Poor recording detection device and image recording apparatus using the same

#95
20080144132
2008-06-19

Optical scanning apparatus and technique for correcting optical characteristics in an image forming apparatus that employs an electrostatic recording method or an electrophotographic recording method

#96
20080137143
2008-06-12

Systems and methods for compensating for streaks in images

#97
20080130021
2008-06-05

Image forming apparatus, control device, computer readable medium and computer data signal

#98
20080055585
2008-03-06

Line sensor and printing press

#99
20080055296
2008-03-06

ELECTRO-OPTICAL DEVICE, METHOD OF DRIVING THE SAME, AND ELECTRONIC APPARATUS

#100
20070291101
2007-12-20

Image forming apparatus and method of controlling same

#101
20070201097
2007-08-30

System for masking print defects

#102
20070171478
2007-07-26

Image forming apparatus

#103
20070171247
2007-07-26

Printer, dither matrix generation method, and recording medium

#104
20070140552
2007-06-21

Optimal test patch level selection for systems that are modeled using low rank eigen functions, with applications to feedback controls

#105
20070139733
2007-06-21

Methods and apparatuses for controlling print density

#106
20070115507
2007-05-24

Method and apparatus for compensating for malfunctioning nozzle of inkjet image forming apparatus

#107
20070109606
2007-05-17

Method of correcting ejection pattern data, apparatus for correcting ejection pattern data, liquid droplet ejection apparatus, method of manufacturing electro-optic device, electro-optic device, and electronic device

#108
20070109603
2007-05-17

PRINTING APPARATUS, PRINTING APPARATUS CONTROL PROGRAM, PRINTING APPARATUS CONTROL METHOD, IMAGE PROCESSING DEVICE, IMAGE PROCESSING PROGRAM, IMAGE PROCESSING METHOD, AND RECORDING MEDIUM HAVING THE PROGRAM RECORDED THEREON

#109
20070109572
2007-05-17

Exposed image input device, printer apparatus, and image data input control program product

#110
20070097462
2007-05-03

Luminance nonuniformity adjustment method and luminance nonuniformity adjustment module using this method

#111
20070097159
2007-05-03

Methods for reducing die-to-die color inconsistances in a multi-die printing system

#112
20070057986
2007-03-15

Printing apparatus, printing program, printing method, image processing apparatus, image processing program, image processing method, and recording medium having the program recorded thereon

#113
20070052983
2007-03-08

Light emitting device, driving method thereof, and image forming apparatus

#114
20070046706
2007-03-01

PRINTING DEVICE, PRINTING PROGRAM, PRINTING METHOD AND IMAGE PROCESSING DEVICE, IMAGE PROCESSING PROGRAM, IMAGE PROCESSING METHOD, AND RECORDING MEDIUM ON WHICH PROGRAM IS RECORDED

#115
20070041065
2007-02-22

Image processor, image formation apparatus, image processing method, and program

#116
20070030327
2007-02-08

Light amount correcting method for light emitting apparatus, image forming apparatus, and display apparatus

#117
20070024690
2007-02-01

Image forming apparatus

#118
20070019065
2007-01-25

Method and apparatus for adjusting printbar uniformity

#119
20070008355
2007-01-11

Image processing device, calibration table generator, image processing method, program product, and test pattern

#120
20060291745
2006-12-28

Apparatus and method for compensating for defective pixel

#121
20060285134
2006-12-21

System and method for spatial gray balance calibration using hybrid sensing systems

#122
20060285131
2006-12-21

Compensation for malfunctioning jets

#123
20060279789
2006-12-14

High-image-quality halftone process

#124
20060268342
2006-11-30

Image forming apparatus

#125
20060262151
2006-11-23

Image recording apparatus and method, and method of specifying density correction coefficients

#126
20060256394
2006-11-16

Method and apparatus for image quality diagnosis

#127
20060256185
2006-11-16

Optical scanner and imaging apparatus using the same

#128
20060244776
2006-11-02

Systems and methods for compensating for streaks in images

#129
20060232834
2006-10-19

Printing apparatus

#130
20060232832
2006-10-19

Printing apparatus

#131
20060232618
2006-10-19

Printing apparatus

#132
20060214971
2006-09-28

Image processing method and apparatus, threshold value matrix creating method, image forming apparatus, sub-matrix creating method and program

#133
20060214968
2006-09-28

Image forming apparatus and image processing method

#134
20060214966
2006-09-28

Image forming apparatus, image forming method, and image forming program

#135
20060203310
2006-09-14

Exposure head controller and image formation device

#136
20060193010
2006-08-31

Image processing device and printing apparatus for performing bidirectional printing

#137
20060187507
2006-08-24

Image recording apparatus, image recording method, method for controlling the image recording apparatus, storage medium storing a program capable of being read by a computer, and image processing method

#138
20060181565
2006-08-17

Printing device, program for controlling printing device, method of controlling printing device, printing data creating device, program for controlling printing data and method of creating printing data

#139
20060170937
2006-08-03

Printing apparatus, printing apparatus control program, printing apparatus control method, printing data creating apparatus, printing data creating program and printing data creating method

#140
20060139694
2006-06-29

Image forming apparatus

#141
20060139663
2006-06-29

Defective nozzle compensation

#142
20060139389
2006-06-29

Printing device, print program, printing method, image processing device, image processing program, image processing method, and storage medium storing the same program

#143
20060132875
2006-06-22

Image processing device, image processing method, and program

#144
20060120787
2006-06-08

Printing image slices in parallel by print engines

#145
20060092207
2006-05-04

Methods and apparatus for precision control of print head assemblies

#146
20060082848
2006-04-20

Halftone processing apparatus, printing apparatus, information processing apparatus, halftone processing method, and program

#147
20060066927
2006-03-30

Print control apparatus, method, program, and recording medium

#148
20060023017
2006-02-02

Exposure-energy-density and dynamic effect based uniformity correction for LED printheads

#149
20060012661
2006-01-19

Halftone processing method in laser printer and apparatus using the same

#150
20060007494
2006-01-12

Image processing device and dot data generation method

#151
20060001911
2006-01-05

System and method for compensating for streaks in images using intensity variation of raster output scanner

#152
20050260021
2005-11-24

Print engines

#153
20050231580
2005-10-20

Line head and image forming apparatus incorporating the same

#154
20050220523
2005-10-06

Image processing apparatus, image processing method, printer, printing method, and program therefor

#155
20050206964
2005-09-22

Image forming apparatus and method of controlling same

#156
20050185161
2005-08-25

Method and test form for equalizing the exposure heads in an exposer for printing originals

#157
20050162499
2005-07-28

Image forming device

#158
20050151974
2005-07-14

Methods for automated uniformity assessment and modification of image non-uniformities

#159
20050151829
2005-07-14

Exposure system

#160
20050151826
2005-07-14

Optical scanner and imaging apparatus using the same

#161
20050134624
2005-06-23

Systems and methods for compensating for streaks in images

#162
20050134623
2005-06-23

System and methods for compensating for streaks in images

#163
20050099446
2005-05-12

Systems and methods for compensating for streaks in images

#164
20050083978
2005-04-21

Method for controlling laser beam power balance in laser scanning unit

#165
20050018221
2005-01-27

Conforming output intensities of pens

#166
18181898
2024-02-27

Shift compensation mechanism

#167
17684257
2023-04-18

Secondary color uniformity compensation mechanism

#168
16952124
2021-10-26

Uniformity compensation refinement mechanism