Patents-Review.com
ClassID:

178252 ⎘

G03G2215/025 - CPC Classification

Classification description:

Apparatus for electrophotographic processes; Arrangements for laying down a uniform charge by contact, friction or induction using contact charging means having lateral dimensions related to other apparatus means, e.g. photodrum, developing roller

Recent Application in this class:
#1
20260133520
2026-05-14

IMAGE FORMING APPARATUS

 #2
20250355390
2025-11-20

IMAGE FORMING APPARATUS

 #3
20250076779
2025-03-06

DRUM UNIT AND IMAGE FORMATION APPARATUS

 #4
20250068092
2025-02-27

IMAGE FORMING APPARATUS

 #5
20250060687
2025-02-20

CHARGING ROLL FOR ELECTROPHOTOGRAPHIC EQUIPMENT

 #6
20250036043
2025-01-30

DEVELOPING CARTRIDGE INCLUDING ELECTRICAL CONTACT SURFACE POSITIONED AWAY FROM DEVELOPING ROLLER

 #7
20240427271
2024-12-26

IMAGE FORMING APPARATUS

 #8
20240419120
2024-12-19

IMAGE FORMING APPARATUS

 #9
20240419093
2024-12-19

IMAGE FORMING APPARATUS

 #10
20240393714
2024-11-28

DEVELOPING DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

 #11
20240353787
2024-10-24

IMAGE FORMING APPARATUS

 #12
20240319632
2024-09-26

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

 #13
20240168429
2024-05-23

PROCESS CARTRIDGE AND POTENTIAL DETECTION PART

 #14
20240152083
2024-05-09

IMAGE FORMING APPARATUS

 #15
20240152074
2024-05-09

IMAGE FORMING APPARATUS

 #16
20240152073
2024-05-09

IMAGE FORMING APPARATUS

 #17
20240142908
2024-05-02

IMAGE FORMING APPARATUS

 #18
20240111239
2024-04-04

Process cartridge including developing cartridge having developing holder, and drum cartridge having elastic member that can be connected to developing holder

 #19
20240111236
2024-04-04

IMAGE FORMING APPARATUS

 #20
20230408949
2023-12-21

VOLTAGE GENERATING APPARATUS AND IMAGE FORMING APPARATUS

 #21
20230367237
2023-11-16

Charging member having two surface layers

 #22
20230359137
2023-11-09

Developing cartridge including electrical contact surface positioned away from developing roller

 #23
20230324841
2023-10-12

IMAGE FORMING APPARATUS

 #24
20230314979
2023-10-05

Conductive roller, image forming apparatus, and inspection method for conductive roller

 #25
20230314978
2023-10-05

Process unit and image-forming apparatus

 #26
20230288834
2023-09-14

Conductive roller, image forming apparatus, and inspection method for conductive roller

 #27
20230266694
2023-08-24

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME

 #28
20230259061
2023-08-17

Consumable chip and imaging forming control method

 #29
20230152746
2023-05-18

Image forming apparatus

 #30
20230082013
2023-03-16

Image forming apparatus including pre-exposure unit having light emitting elements of different directional characteristics

 #31
20220107577
2022-04-07

Gap adjustment of non-contact charging roller

 #32
20210116829
2021-04-22

Electrophotographic apparatus, process cartridge and cartridge set

 #33
20210011397
2021-01-14

Gear assembly for a replaceable unit of an electrophotographic image forming device

 #34
20200379378
2020-12-03

Drum cartridge and image forming apparatus

 #35
20200326641
2020-10-15

Image forming apparatus

 #36
20200201202
2020-06-25

Image forming apparatus having a voltage applying unit that applies voltage to a regulating member

 #37
20200174393
2020-06-04

Processing device and image forming apparatus

 #38
20200110353
2020-04-09

OPPOSING-MEMBER CAPACITANCE DETECTION METHOD AND IMAGE FORMING APPARATUS

 #39
20200103791
2020-04-02

Drum cartridge and image forming apparatus

 #40
20200103790
2020-04-02

Drum cartridge and image forming apparatus

 #41
20200103779
2020-04-02

IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, FIXING DEVICE, AND IMAGE-FORMED PRODUCT

 #42
20200089155
2020-03-19

Printing apparatus and light-emitting element driving device

 #43
20200026219
2020-01-23

Image forming apparatus

 #44
20190384191
2019-12-19

Electroconductive support body and method for manufacturing same, electrophotographic photoreceptor, and electrophotographic device

 #45
20190346788
2019-11-14

Charging roller, cartridge, and image forming apparatus

 #46
20190146375
2019-05-16

Electrophotographic printers

 #47
20190004452
2019-01-03

Printing liquid developer

 #48
20180348661
2018-12-06

Electrophotographic roller, process cartridge and electrophotographic apparatus

 #49
20180321610
2018-11-08

Image formation apparatus

 #50
20180224797
2018-08-09

Cleaning device and image forming apparatus

 #51
20180135958
2018-05-17

Image forming apparatus, photoconductor film thickness estimation method, and estimation program

 #52
20180129151
2018-05-10

Electrophotographic printers

 #53
20180088486
2018-03-29

Image forming apparatus having image bearing member and collection device to collect materials adhered on the image bearing member

 #54
20180017910
2018-01-18

Fixing device and image forming apparatus having nip pad including a center bend line

 #55
20170329251
2017-11-16

Electrophotographic member, process cartridge and electrophotographic image forming apparatus

 #56
20170285499
2017-10-05

Electrophotographic apparatus

 #57
20170261880
2017-09-14

Image forming apparatus including unit attachable to and detachable from apparatus main body, conductive member disposed in unit, contact spring disposed in apparatus main body and configured to come in electrically conductive contact with conductive member, and hollow cylinder disposed in apparatus main body and retaining contact spring

 #58
20170052469
2017-02-23

Roller member, image carrier device, and image forming apparatus

 #59
20160209768
2016-07-21

Toner set for electrostatic image development, developer set for electrostatic image development, process cartridge set, image forming apparatus, and image forming method

 #60
20150362886
2015-12-17

Image forming apparatus having simultaneous development and cleaning

 #61
20150023690
2015-01-22

Toner set for electrostatic image development, developer set for electrostatic image development, process cartridge set, image forming apparatus, and image forming method

 #62
20120244465
2012-09-27

TONER SET FOR ELECTROSTATIC IMAGE DEVELOPMENT, DEVELOPER SET FOR ELECTROSTATIC IMAGE DEVELOPMENT, PROCESS CARTRIDGE SET, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD

 #63
20120177407
2012-07-12

Developing device and image forming apparatus having the same

 #64
20120033984
2012-02-09

Image forming apparatus

 #65
20120033983
2012-02-09

Image forming apparatus

 #66
20110200362
2011-08-18

Bias charge roller comprising overcoat layer

 #67
20110200361
2011-08-18

Bias charge roller comprising overcoat layer

 #68
20100247135
2010-09-30

Charging device for electrically charging photosensitive member

 #69
20100239287
2010-09-23

Image forming apparatus

 #70
20100239286
2010-09-23

Image forming apparatus

 #71
20100239285
2010-09-23

IMAGE FORMING APPARATUS

 #72
20100158579
2010-06-24

Toner transfer roller and image forming device using the same

 #73
20100098453
2010-04-22

Charge roller cleaning member for use in media processing device

 #74
20090297212
2009-12-03

Process cartridge and image forming apparatus

 #75
20090180788
2009-07-16

Image forming apparatus, and image forming method

 #76
20090162092
2009-06-25

Charging member cleaning unit, method of producing charging member cleaning unit, charging device, process cartridge and image forming apparatus

 #77
20090103940
2009-04-23

Image forming device

 #78
20090087212
2009-04-02

CHARGING DEVICE

 #79
20090074443
2009-03-19

Charging device and image forming apparatus using the same

 #80
20090067880
2009-03-12

Charging member, process cartridge, and electrophotographic apparatus

 #81
20090028591
2009-01-29

Image forming apparatus

 #82
20090022517
2009-01-22

Image forming apparatus with a pre-exposure light control feature

 #83
20080285993
2008-11-20

Image forming apparatus for forming toner image using developer made of toner and carrier

 #84
20080152385
2008-06-26

Process unit and image forming apparatus including the same

 #85
20080152384
2008-06-26

Electrifying apparatus, a processing unit, and an image formation apparatus

 #86
20080145591
2008-06-19

Interference fit sleeved foam charge rolls and composite materials

 #87
20080069594
2008-03-20

Developer, and image forming apparatus and image forming method using the developer

 #88
20080038017
2008-02-14

METHOD AND APPARATUS FOR IMAGE FORMING FOR EFFECTIVELY CHARGING AN IMAGE CARRIER

 #89
20080038016
2008-02-14

Conductive member, process cartridge having conductive member, and image forming apparatus having process cartridge

 #90
20080019737
2008-01-24

Image forming apparatus and process cartridge

 #91
20080019720
2008-01-24

Charging-roller bearing member, process cartridge, and image forming apparatus

 #92
20080008499
2008-01-10

Charging member, process cartridge including the same, and image forming apparatus including the same

 #93
20070189807
2007-08-16

Image forming apparatus and method for producing charging roll

 #94
20070189801
2007-08-16

Image forming apparatus with a brush roller that rotates and reciprocates

 #95
20070172259
2007-07-26

Image forming apparatus that effectively charges a latent image carrier

 #96
20070166066
2007-07-19

Image formation apparatus with controlled discharge current

 #97
20070166063
2007-07-19

Image formation apparatus provided with photoconductor and charging device

 #98
20070098435
2007-05-03

Image forming device having charging roller and cleaning member

 #99
20070065178
2007-03-22

Conductive member, and charging roller, process cartridge and image forming apparatus using same

 #100
20070059034
2007-03-15

Image forming apparatus and process cartridge employing the same having brush roller charger

 #101
20070059000
2007-03-15

Image forming apparatus with residual toner transfer prevention feature

 #102
20060269327
2006-11-30

Semiconductive rubber member

 #103
20060222406
2006-10-05

Non-contact bias charge roll biased with burst modulation waveform

 #104
20060222400
2006-10-05

Image forming apparatus with charging member cleaning capabilities

 #105
20060188294
2006-08-24

Image forming apparatus having charge member and pressing member

 #106
20060078353
2006-04-13

Charging device, process unit, image forming apparatus, and method for producing rotating member

 #107
20050202946
2005-09-15

Electroconductive roller

 #108
20050111881
2005-05-26

Charging apparatus, process cartridge, and image forming apparatus

 #109
16171877
2020-01-14

Electrostatic process unit fan impeller and cooling duct