ClassID:

178249

G03G2215/021 - CPC Classification

Classification description:

Apparatus for electrophotographic processes; Arrangements for laying down a uniform charge by contact, friction or induction

Sub-classes:
Recent Application in this class:
#1
20260010092
2026-01-08

IMAGE FORMING APPARATUS

#2
20260010090
2026-01-08

CHARGING ROLLER, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD

#3
20250053110
2025-02-13

CHARGING SYSTEM AND IMAGE FORMING SYSTEM

#4
20240319632
2024-09-26

Conductive member, charging device, process cartridge, and image forming apparatus

#5
20240288792
2024-08-29

IMAGE FORMING APPARATUS

#6
20240168405
2024-05-23

IMAGE FORMING APPARATUS

#7
20240103396
2024-03-28

Image forming apparatus

#8
20230367237
2023-11-16

Charging member having two surface layers

#9
20210157252
2021-05-27

Charging roll for electrophotographic equipment

#10
20210116829
2021-04-22

Electrophotographic apparatus, process cartridge and cartridge set

#11
20200341404
2020-10-29

Image forming apparatus

#12
20200241436
2020-07-30

Image forming apparatus in which AC-type biasing is adopted for charging or development

#13
20200209778
2020-07-02

Charging device, image former, and image forming apparatus that electrically charge a surface of a charging target member

#14
20200081366
2020-03-12

TRANSFER DEVICE AND IMAGE FORMING APPARATUS

#15
20190324379
2019-10-24

Charging member, manufacturing method of charging member, electrophotographic apparatus, and process cartridge

#16
20190317422
2019-10-17

Charging roller and method of producing the same

#17
20190094742
2019-03-28

Cleaning member, charging device, and image forming apparatus

#18
20190041766
2019-02-07

CONDUCTIVE ROLLER, AND PRODUCTION METHOD THEREFOR

#19
20190004461
2019-01-03

Image forming apparatus that controls cleaning ability of cleaner and control method thereof

#20
20180364637
2018-12-20

Image forming apparatus and cartridge having charging roller

#21
20180364604
2018-12-20

Charging roller, cartridge, image forming apparatus and manufacturing method of the charging roller

#22
20180341192
2018-11-29

Image forming apparatus

#23
20180335713
2018-11-22

Image forming apparatus

#24
20180292766
2018-10-11

Rotatable member and electrophotographic image forming apparatus including the rotatable member

#25
20180275577
2018-09-27

IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD

#26
20180275552
2018-09-27

CHARGING ROLL FOR ELECTROPHOTOGRAPHIC DEVICE

#27
20180275539
2018-09-27

TONER AND MANUFACTURING METHOD THEREOF, TONER CARTRIDGE, DEVELOPMENT DEVICE, AND IMAGE FORMATION APPARATUS

#28
20180267424
2018-09-20

IMAGE FORMING APPARATUS, METHOD OF CONTROLLING IMAGE FORMING APPARATUS, AND CONTROL PROGRAM OF IMAGE FORMING APPARATUS

#29
20180188666
2018-07-05

Electrophotographic roller and charging apparatus

#30
20170168411
2017-06-15

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

#31
20160357124
2016-12-08

Imaging device components comprised of hydrophobic carbon nanotubes

#32
20150125184
2015-05-07

Charging device, image forming unit and image forming apparatus

#33
20140376964
2014-12-25

Imaging device components comprised of hydrophobic carbon nanotubes

#34
20120213551
2012-08-23

IMAGE FORMING APPARATUS

#35
20120155922
2012-06-21

Charging device and image forming apparatus using the same

#36
20120148307
2012-06-14

Charging member and image forming apparatus

#37
20110318060
2011-12-29

Image forming apparatus

#38
20110299890
2011-12-08

Image forming apparatus

#39
20110058834
2011-03-10

Image forming apparatus

#40
20110058833
2011-03-10

Image forming apparatus

#41
20100278549
2010-11-04

Image forming apparatus and method of adjusting charge bias

#42
20100215385
2010-08-26

Image forming device, computer readable medium and photoreceptor deterioration condition estimation method

#43
20100200814
2010-08-12

Semiconductive rubber composition and semiconductive rubber roller employing the same

#44
20100092197
2010-04-15

Image forming apparatus

#45
20100009282
2010-01-14

Image forming method, image forming apparatus and process cartridge

#46
20090269092
2009-10-29

Image forming apparatus with variable amplitude alternating current to mitigate image defects and photoconductor wear

#47
20090123185
2009-05-14

Imaging device components comprised of hydrophobic carbon nanotubes

#48
20090041502
2009-02-12

Image forming apparatus featuring first and second brushes for charging residual toner

#49
20090041491
2009-02-12

Process cartridge and image forming apparatus including a toner charge control device with an endless belt

#50
20080304853
2008-12-11

Image forming apparatus

#51
20080193153
2008-08-14

Image forming apparatus

#52
20080187361
2008-08-07

Image forming method and apparatus which uses alternating voltage to form an electric field for moving toner

#53
20080145118
2008-06-19

Cleaning device for use with image forming apparatus

#54
20080145075
2008-06-19

Image forming apparatus

#55
20080131153
2008-06-05

Image forming apparatus employing a cleaner-less system

#56
20080118258
2008-05-22

Image forming apparatus with a control unit that controls a charging bias voltage

#57
20080107452
2008-05-08

Charging unit and image forming apparatus incorporating the unit

#58
20080095550
2008-04-24

Image forming apparatus

#59
20080075499
2008-03-27

Cleaning device, process cartridge and image formation apparatus

#60
20080056745
2008-03-06

Image forming method and apparatus for effectively charging an image carrier

#61
20080031646
2008-02-07

Image forming apparatus and method of adjusting charge bias

#62
20080003004
2008-01-03

Image forming apparatus that charges the surface of a photosensitive member to a predetermined potential

#63
20070297819
2007-12-27

Charging device, image forming apparatus using the same and charging controlling method

#64
20070286643
2007-12-13

Image forming apparatus

#65
20070223949
2007-09-27

Image forming apparatus with surface potential adjustment based on idle time

#66
20070189788
2007-08-16

Image forming apparatus and charge control method

#67
20070189787
2007-08-16

Image formation apparatus and charging control method of charging roll

#68
20070183809
2007-08-09

Image formation device with auxiliary roller

#69
20070166076
2007-07-19

Conductive member, process cartridge using conductive member and image formation apparatus using process cartridge

#70
20070127950
2007-06-07

Apparatus for charging an image transfer surface

#71
20070092296
2007-04-26

Image forming method and image forming device

#72
20070041752
2007-02-22

Semiconductive roller

#73
20070025772
2007-02-01

Image-forming device comprising a contact charging unit

#74
20060140653
2006-06-29

Image forming apparatus

#75
20060067727
2006-03-30

Charging device having a first and second pressure with a cleaning member, and process cartridge and image forming apparatus including the charging device

#76
20050286934
2005-12-29

Biased charge roller with embedded electrodes with post-nip breakdown to enable improved charge uniformity

#77
20050271419
2005-12-08

Charging device

#78
20050271416
2005-12-08

Image forming apparatus

#79
20050232659
2005-10-20

Image forming apparatus and charging device therefor receiving AC and DC voltages

#80
20050175374
2005-08-11

Charging unit and image forming apparatus incorporating the unit

#81
20050169660
2005-08-04

Charging device, process cartridge, and image forming apparatus

#82
20050152722
2005-07-14

Method and apparatus for image forming capable of using minuscule spherical particles of toner, a process cartridge in use for the apparatus and a toner used in the image forming for obtaining an image with a high thin line reproducibility

#83
16540639
2020-08-25

Charging device and cleaning member

#84
16540531
2020-07-07

Image forming system including a first transfer unit and a second transfer unit having a total resistance larger than that of the first transfer unit

#85
15215633
2017-08-29

Charging member, process cartridge, and image forming apparatus for reducing production of micro-chromatic line

#86
14845815
2016-03-08

Charging member, process cartridge, and image forming apparatus