Patents-Review.com
ClassID:

177663 ⎘

G03G15/0817 - CPC Classification

Classification description:

Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the lateral sealing at both sides of the donor member with respect to the developer carrying direction

Recent Application in this class:
#1
20250370405
2025-12-04

IMAGE FORMING APPARATUS INCLUDING MAIN HOUSING, FIRST DRUM CARTRIDGE HAVING FIRST PHOTOSENSITIVE DRUM, AND SECOND DRUM CARTRIDGE HAVING SECOND PHOTOSENSITIVE DRUM

 #2
20250181009
2025-06-05

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS

 #3
20250164906
2025-05-22

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS

 #4
20250147452
2025-05-08

DEVELOPING DEVICE, IMAGE FORMING APPARATUS, AND METHOD FOR MANUFACTURING DEVELOPING DEVICE

 #5
20240077813
2024-03-07

Developing device, process cartridge, and image forming apparatus including an entrance seal which contacts an image bearer

 #6
20240061362
2024-02-22

PROCESS CARTRIDGE AND DEVELOPING CARTRIDGE

 #7
20240004325
2024-01-04

Developing device including regulation member with different diameters of central portion and both end portions

 #8
20230384709
2023-11-30

Developing device and image forming apparatus

 #9
20230305431
2023-09-28

Developing device and image forming apparatus

 #10
20230259051
2023-08-17

Developer conveying mechanism, and developing device and image forming apparatus provided therewith

 #11
20230094249
2023-03-30

Developer unit seals with endcaps having channels

 #12
20230061093
2023-03-02

Developing unit

 #13
20220373932
2022-11-24

Developing device with transporting member and cooling unit fixed to a case

 #14
20220350277
2022-11-03

Seal for an electrophotograhic image forming device

 #15
20220342349
2022-10-27

Developing device including development container, developer carrier, and restricting blade, and image forming apparatus including the same

 #16
20220342343
2022-10-27

Developing device and image forming apparatus including ihe same

 #17
20220342342
2022-10-27

Developing device and image forming apparatus including same

 #18
20220342341
2022-10-27

Developing device and image forming apparatus including same

 #19
20220187734
2022-06-16

Image forming apparatus having toner charging

 #20
20220082958
2022-03-17

Developing apparatus to increase adhesion between a seal member and a regulation portion in the developing apparatus

 #21
20220075288
2022-03-10

Process cartridge having toner receiving portion

 #22
20210373456
2021-12-02

Developing apparatus with an airflow passage to provide air flow at a longitudinal end of a developer roller

 #23
20210200118
2021-07-01

Developing apparatus to increase adhesion between a seal member and a regulation portion in the developing apparatus

 #24
20210181656
2021-06-17

Seal for an electrophotographic image forming device

 #25
20210173327
2021-06-10

Powder transport apparatus

 #26
20210116844
2021-04-22

Seal for an electrophotograhic image forming device

 #27
20210080859
2021-03-18

Process cartridge, developing apparatus, and image forming apparatus

 #28
20210011396
2021-01-14

Developing device, image forming apparatus and method of manufacturing developing device

 #29
20200285170
2020-09-10

Development device

 #30
20200150558
2020-05-14

Developing device, process cartridge and image forming apparatus

 #31
20200150557
2020-05-14

Developing device, process cartridge, and image forming apparatus

 #32
20200064755
2020-02-27

Roller seal for a developer unit in a liquid electrophotographic printer

 #33
20190346791
2019-11-14

Anti-friction ring for a developer roller in a liquid electrophotographic printer

 #34
20190179235
2019-06-13

Sealing material comprising cut pile woven fabric

 #35
20190025729
2019-01-24

Developing blade, developing device, and cartridge

 #36
20180335729
2018-11-22

Cleaning device and image forming apparatus

 #37
20180292769
2018-10-11

Seal member, unit, and image forming apparatus

 #38
20180259870
2018-09-13

Inner resistive film with ductile particles and outer resistive film

 #39
20180231917
2018-08-16

Developing unit, process cartridge, and image forming apparatus including process cartridge

 #40
20180164714
2018-06-14

Developing apparatus having a sealing sheet and unsealing mechanism

 #41
20180164711
2018-06-14

Developing unit and process cartridge

 #42
20180101111
2018-04-12

Developing device including a film member which is disposed on inner wall portion of casing and image forming apparatus

 #43
20180067420
2018-03-08

Image forming apparatus having operation guide label

 #44
20180031998
2018-02-01

Developing apparatus, process cartridge and electrophotographic image forming apparatus

 #45
20180011426
2018-01-11

Developing device

 #46
20170357208
2017-12-14

Developing apparatus having a sealed developer bearing member, process cartridge, and image forming apparatus

 #47
20170357189
2017-12-14

Developing apparatus having varying magnetic flux density and image forming apparatus

 #48
20170227885
2017-08-10

Powder container and image forming apparatus

 #49
20170219949
2017-08-03

Inner resistive film with ductile particles and outer resistive film without ductile particles

 #50
20170205764
2017-07-20

Cartridge

 #51
20170168421
2017-06-15

Developing device and image forming apparatus incorporating same

 #52
20170153576
2017-06-01

Toner supply device including opening and closing mechanism of toner supply port, and image forming apparatus

 #53
20170082949
2017-03-23

Notched end seal for an electrophotographic image forming device

 #54
20170003622
2017-01-05

Sealing member having a seal portion and a supporting portion

 #55
20160282804
2016-09-29

Cartridge and image forming apparatus

 #56
20160259271
2016-09-08

Developing device, process cartridge, and image forming apparatus

 #57
20160238989
2016-08-18

Developing device and image forming member including a clearance closing member with grooves

 #58
20160170370
2016-06-16

Cleaning unit, process cartridge and image forming apparatus

 #59
20160147180
2016-05-26

End seal with insert for chambered doctor blade assembly

 #60
20160116862
2016-04-28

Developing apparatus

 #61
20160070203
2016-03-10

Development device, process cartridge, and image forming apparatus

 #62
20160041501
2016-02-11

End seal member for electrophotographic image-forming device

 #63
20160033932
2016-02-04

Cartridge and method for manufacturing cartridge

 #64
20150346631
2015-12-03

Toner carrier

 #65
20150331359
2015-11-19

Developing unit and process cartridge

 #66
20150286161
2015-10-08

End seal with insert for chambered doctor blade assembly

 #67
20150220020
2015-08-06

Developer container, cartridge, and image-forming apparatus

 #68
20150177650
2015-06-25

Electrophotographic image-forming device provided with end seal member

 #69
20150139683
2015-05-21

Developing device, process cartridge, and image forming apparatus

 #70
20150132033
2015-05-14

Toner carrier

 #71
20150110521
2015-04-23

Developing device

 #72
20150110520
2015-04-23

Developing device having developing roller, layer thickness regulation blade and seal member

 #73
20150093144
2015-04-02

Developing device

 #74
20150086237
2015-03-26

Developing unit

 #75
20150078789
2015-03-19

Developing apparatus having thickness regulating member, sealing member, and restricting member

 #76
20150063862
2015-03-05

Developing device and image forming apparatus having seal member with non-contact portion

 #77
20150050041
2015-02-19

Developing device and image forming apparatus

 #78
20150023687
2015-01-22

Developing device provided with seal configured to prevent developer leakage

 #79
20150016837
2015-01-15

Developing apparatus

 #80
20150003864
2015-01-01

Developing device having regulating portions that regulate movement of a seal member

 #81
20140376954
2014-12-25

Developing device

 #82
20140373740
2014-12-25

Doctor blade chamber seal

 #83
20140199098
2014-07-17

Toner carrier

 #84
20140178093
2014-06-26

Developing device, process cartridge and image forming apparatus

 #85
20140153962
2014-06-05

Developing device having seal member and recess portion in the developing roller

 #86
20140153961
2014-06-05

Seal configuration for suppressing developer leakage in a developing device

 #87
20140153960
2014-06-05

Developing device for preventing toner leakage

 #88
20140153959
2014-06-05

Developing device for preventing toner leakage

 #89
20140153958
2014-06-05

Sealing assembly, developing device, process unit, and image forming apparatus incorporating same

 #90
20140153956
2014-06-05

Cleaning device, intermediate transfer unit and image forming apparatus

 #91
20140105635
2014-04-17

Casing projections of an image forming apparatus configured to support a seal of a developing device

 #92
20140093271
2014-04-03

Cartridge and image forming apparatus

 #93
20140086619
2014-03-27

Developing cartridge having frame to which seal is assembled without adhesion

 #94
20140072327
2014-03-13

Developing apparatus, process cartridge and unit

 #95
20140064778
2014-03-06

Development device

 #96
20140064777
2014-03-06

Development apparatus and cartridge with sealing member to prevent leakage of developer

 #97
20140037324
2014-02-06

Cleaning apparatus, cartridge, image forming apparatus, and elastic seal

 #98
20130330099
2013-12-12

Seal configurations for image forming apparatus

 #99
20130322921
2013-12-05

Development apparatus, process cartridge, and image forming apparatus

 #100
20130287431
2013-10-31

Developing device having seal members to restrict toner leakage

 #101
20130287430
2013-10-31

Developing device having seal members to restrict toner leakage

 #102
20130259525
2013-10-03

Image forming apparatus

 #103
20130259514
2013-10-03

Sealing member having internal lubricant additives

 #104
20130223873
2013-08-29

Image forming apparatus

 #105
20130195502
2013-08-01

Developing device having developer bearing member and layer thickness regulating member

 #106
20130164024
2013-06-27

Developer supplying apparatus

 #107
20130129376
2013-05-23

Developing device

 #108
20130108314
2013-05-02

Developing device for preventing toner leakage

 #109
20130084098
2013-04-04

DEVELOPING DEVICE AND CLEANING DEVICE

 #110
20130071148
2013-03-21

DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS INCORPORATING SAME

 #111
20130051840
2013-02-28

Electrophotographic image forming apparatus and process cartridge

 #112
20130028640
2013-01-31

Developing apparatus having thickness regulating member

 #113
20130028630
2013-01-31

Developing device provided with seal configured to prevent developer leakage

 #114
20120292857
2012-11-22

Multiple stiffness seal for imaging component surfaces

 #115
20120269539
2012-10-25

Developing device

 #116
20120269538
2012-10-25

Developing device having seal member including base member and surface member having side surface disposed inward from side surface of base material

 #117
20120243901
2012-09-27

Developing device with seal members

 #118
20120201565
2012-08-09

Seal member for preventing leakage of micro-powder from rotating body

 #119
20120177401
2012-07-12

Developing apparatus, process cartridge and image forming apparatus

 #120
20120070181
2012-03-22

Air duct and toner cartridge using same

 #121
20110311267
2011-12-22

DEVELOPING DEVICE, IMAGE FORMING APPARATUS AND METHOD

 #122
20110311266
2011-12-22

Developer supply device having side seal members to prevent toner leakage, and image forming apparatus having the same

 #123
20110286762
2011-11-24

Developing device, process cartridge, remanufacturing method for developing device and process cartridge

 #124
20110255901
2011-10-20

Casing projections of an image forming apparatus configured to support a seal of a developing device

 #125
20110255897
2011-10-20

Developing device

 #126
20110236057
2011-09-29

Developing apparatus, process cartridge and image forming apparatus

 #127
20110064472
2011-03-17

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS

 #128
20110064453
2011-03-17

Development device having a seal member and an elastic member and image forming device having the same

 #129
20110044719
2011-02-24

Unidirectional pump auger shaft seal for developer housings

 #130
20100209126
2010-08-19

Developing device and image forming apparatus

 #131
20100092206
2010-04-15

Developing device

 #132
20090317124
2009-12-24

Method for producing cleaning device and cleaning device

 #133
20090297213
2009-12-03

Process cartridge with sheet member contacting photosensitive member

 #134
20090290901
2009-11-26

Development device

 #135
20090274482
2009-11-05

Developing unit and side seal member

 #136
20090274481
2009-11-05

Developing unit including side seal member between end of developer carrier and housing

 #137
20090226207
2009-09-10

Developing device and image forming apparatus with seal members

 #138
20090202270
2009-08-13

Air duct and toner cartridge using same

 #139
20090190952
2009-07-30

Developing device

 #140
20090185819
2009-07-23

Developing device with seal member that abuts toner carrier roller

 #141
20090154951
2009-06-18

Developer roll lip seal

 #142
20090154950
2009-06-18

Upper seal for inhibiting doctor blade toner leakage

 #143
20090060594
2009-03-05

DEVELOPING DEVICE

 #144
20090035011
2009-02-05

Self-sealing process roller

 #145
20090022523
2009-01-22

Development unit, for image forming apparatus

 #146
20090022512
2009-01-22

Developing apparatus, image forming apparatus having the same, and assembling method of a developing apparatus

 #147
20090010676
2009-01-08

Developing apparatus and image forming apparatus

 #148
20080205926
2008-08-28

Developing device and image forming apparatus including the same

 #149
20080199210
2008-08-21

Developing device

 #150
20080187353
2008-08-07

Cleaning and sealing apparatus of an image forming apparatus and developing unit thereof

 #151
20080181678
2008-07-31

Developing apparatus, process cartridge, and image forming apparatus

 #152
20080170879
2008-07-17

Seal and seal assembly for an image forming apparatus

 #153
20080112723
2008-05-15

Developing apparatus, process cartridge and magnetic sealing member

 #154
20080080889
2008-04-03

Developing apparatus, process cartridge and image forming apparatus having toner leakage prevention member

 #155
20070264042
2007-11-15

Developing device with leakage preventing member, process cartridge with leakage preventing member, and method for attaching developing roller to developer container

 #156
20070253727
2007-11-01

Developing device preventing damage by toner and image forming apparatus having the same

 #157
20070242973
2007-10-18

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS

 #158
20070237540
2007-10-11

Developing device with overlapping sealing members with reduced thicknesses

 #159
20070140729
2007-06-21

Dynamic seal for component surfaces

 #160
20070134020
2007-06-14

Developing device having improved sealing structure

 #161
20070122183
2007-05-31

Developing device, image forming device and method of assembling developing device

 #162
20070122182
2007-05-31

Developing device and image forming apparatus

 #163
20070086805
2007-04-19

Developing device, process cartridge, and image forming apparatus

 #164
20070077084
2007-04-05

Developing device and image forming apparatus

 #165
20070071490
2007-03-29

Developing device

 #166
20070071489
2007-03-29

Developing device having a side seal member located between a developing roller and a case main body

 #167
20070071488
2007-03-29

Image-forming device and developer cartridge having leakage restraining member and developer moving member

 #168
20070059031
2007-03-15

Developing apparatus, process cartridge, developer cartridge, and image forming apparatus including leakage preventing member

 #169
20070053713
2007-03-08

Developing device and image forming device including a seal member

 #170
20070048002
2007-03-01

Image forming device having a member for preventing developer leakage

 #171
20070034100
2007-02-15

Seals for an image forming apparatus

 #172
20070034099
2007-02-15

Seals for an image forming apparatus

 #173
20070025756
2007-02-01

Sealing member for image forming device

 #174
20060269317
2006-11-30

Developer cartridge and image-forming device with improved sealing

 #175
20060204273
2006-09-14

Developing device

 #176
20060171736
2006-08-03

Developing device, image forming apparatus, image forming system, and method of assembling developer supplying roller

 #177
20060127125
2006-06-15

Toner transport roller

 #178
20060120750
2006-06-08

Image forming apparatus

 #179
20060083541
2006-04-20

Developing device and image forming apparatus provided with same

 #180
20060072934
2006-04-06

Cartridge and image forming apparatus

 #181
20060045563
2006-03-02

Toner sealing elements for developing device and image forming apparatus having the same

 #182
20060024084
2006-02-02

Developing apparatus, process cartridge and image forming apparatus having toner leakage prevention member

 #183
20050226650
2005-10-13

Image forming apparatus having developing device with sealing members and method of manufacture

 #184
20050185981
2005-08-25

Developing apparatus and image forming apparatus that incorporates the developing apparatus

 #185
20050185980
2005-08-25

Developer carrier, developing device, image forming apparatus and computer system

 #186
20050180774
2005-08-18

Developing device and printing device

 #187
20050158070
2005-07-21

Developing cartridge, process cartridge, image forming device, and sliding sealing element

 #188
20050152714
2005-07-14

Preventing printer toner leakage

 #189
20050111874
2005-05-26

Developing device having a developer scatter prevention unit and an electrophotographic image forming apparatus using the same

 #190
20050105936
2005-05-19

Developing apparatus, process cartridge, electrophotographic image forming apparatus and end portion regulating member

 #191
20050095031
2005-05-05

Seal member, developing apparatus, process cartridge and image forming apparatus

 #192
20050095030
2005-05-05

Method of mitigating toner damage in high speed contact developing with end seal

 #193
20050078977
2005-04-14

Developing frame and process cartridge

 #194
20050063729
2005-03-24

Developing device, image forming apparatus, computer system, and seal-assisting member

 #195
20050047817
2005-03-03

Developing device, image forming apparatus, image forming system, sealing member, and method for manufacturing sealing member

 #196
15919343
2019-07-30

End seal assembly for an undercut developer roll

 #197
15880034
2019-05-14

Capture of developer leaking from developing device