Patents-Review.com
ClassID:

177928 ⎘

G03G21/16 - CPC Classification

Classification description:

Arrangements not provided for by groups  - , e.g. cleaning, elimination of residual charge Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements

Sub-classes:
Recent Application in this class:
#1
20250383622
2025-12-18

IMAGE FORMING APPARATUS

 #2
20250315007
2025-10-09

DRUM UNIT, CARTRIDGE AND COUPLING MEMBER

 #3
20250306526
2025-10-02

DEVELOPER SUPPLY CONTAINER AND DEVELOPER SUPPLYING SYSTEM

 #4
20250246077
2025-07-31

IMAGE FORMING DEVICE

 #5
20240427277
2024-12-26

Image Forming Apparatus Capable of Inserting Sheet Tray in One Direction and Discharging Printed Sheet in Opposite Direction

 #6
20240353790
2024-10-24

ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS

 #7
20240319656
2024-09-26

FILM CARTRIDGE, FILM UNIT, AND LAYER TRANSFER DEVICE

 #8
20240310779
2024-09-19

Drum unit, cartridge and coupling member

 #9
20240248431
2024-07-25

DEVELOPER SUPPLY CONTAINER AND DEVELOPER SUPPLYING SYSTEM

 #10
20240168413
2024-05-23

IMAGE FORMING APPARATUS

 #11
20240077830
2024-03-07

Unit accommodation apparatus and image forming apparatus

 #12
20240077197
2024-03-07

Sheet conveyance apparatus, image forming apparatus, and image forming system

 #13
20230418181
2023-12-28

INFORMATION STORAGE SYSTEM INCLUDING A PLURALITY OF TERMINALS

 #14
20230375976
2023-11-23

Drum unit, cartridge and coupling member

 #15
20230367257
2023-11-16

Image forming apparatus

 #16
20230359141
2023-11-09

Electrophotographic image forming apparatus

 #17
20230331504
2023-10-19

Printing apparatus

 #18
20230244177
2023-08-03

Developer supply container and developer supplying system

 #19
20230109925
2023-04-13

Image forming apparatus capable of inserting sheet tray in one direction and discharging printed sheet in opposite direction

 #20
20230065095
2023-03-02

Operation assisting tool and image forming apparatus including the operation assisting tool

 #21
20220374180
2022-11-24

Printing device with an option of attachment and detachment of optional hardware to a connector and notifying a management device to acquire permission for using function of attached optional hardware, management system, and management method

 #22
20220357684
2022-11-10

Information storage system including a plurality of terminals

 #23
20220342360
2022-10-27

Electrophotographic image forming apparatus

 #24
20220097997
2022-03-31

Printing apparatus

 #25
20220066385
2022-03-03

Drum unit, cartridge and coupling member

 #26
20220019172
2022-01-20

Developer supply system, developer supply container mounting method and developer supply unit

 #27
20210373484
2021-12-02

Motor control apparatus and image forming apparatus

 #28
20210356905
2021-11-18

Developer supply container and developer supplying system

 #29
20210356896
2021-11-18

Image forming apparatus with restricted rotatable feed tray

 #30
20210356884
2021-11-18

Information storage system including a plurality of terminals

 #31
20210341870
2021-11-04

Drum unit, cartridge, electrophotographic image forming apparatus and coupling member

 #32
20210318656
2021-10-14

Film cartridge, film unit, and layer transfer device

 #33
20210311426
2021-10-07

Layer transfer device

 #34
20210302905
2021-09-30

Recovery container for recovering powder and powder application apparatus

 #35
20210232082
2021-07-29

Developer collecting container

 #36
20210208523
2021-07-08

Toner cartridge and toner supplying mechanism

 #37
20210096502
2021-04-01

Electrophotographic image forming apparatus

 #38
20210088933
2021-03-25

Information storage system including a plurality of terminals

 #39
20210072666
2021-03-11

Toner cartridge and toner supplying mechanism

 #40
20210011425
2021-01-14

CORN EVENT 5307

 #41
20210011424
2021-01-14

CORN EVENT 5307

 #42
20210011420
2021-01-14

Image forming apparatus including gear trains for transmitting driving force of motor to each of a plurality of developing units

 #43
20210011419
2021-01-14

Drum unit, cartridge, electrophotographic image forming apparatus and coupling member

 #44
20200401079
2020-12-24

Cartridge, photosensitive member unit and electrophotographic image forming apparatus

 #45
20200354179
2020-11-12

Image forming apparatus to ensure workability in removing a sheet in a conveyance path

 #46
20200348615
2020-11-05

Developer container which discharges toner from a lower side and includes a box section

 #47
20200301335
2020-09-24

Image-forming apparatus including cam and cam follower for moving developing roller toward and away from photosensitive drum

 #48
20200257239
2020-08-13

Electrophotographic image forming apparatus

 #49
20200225615
2020-07-16

Developer supply system, developer supply container mounting method and developer supply unit

 #50
20200209784
2020-07-02

Toner cartridge and toner supplying mechanism

 #51
20200192244
2020-06-18

Toner cartridge and toner supplying mechanism

 #52
20200159163
2020-05-21

Developer supply container and developer supplying system

 #53
20200142345
2020-05-07

Drum unit, cartridge, electrophotographic image forming apparatus and coupling member

 #54
20200073324
2020-03-05

Drum unit, cartridge and coupling member

 #55
20200073323
2020-03-05

Drum unit, cartridge and coupling member

 #56
20200041954
2020-02-06

Drum unit, cartridge and coupling member

 #57
20200041953
2020-02-06

Drum unit, cartridge and coupling member

 #58
20200033799
2020-01-30

Drum unit, cartridge and coupling member

 #59
20200033798
2020-01-30

Drum unit, cartridge and coupling member

 #60
20200033797
2020-01-30

Drum unit, cartridge and coupling member

 #61
20200033796
2020-01-30

Drum unit, cartridge and coupling member

 #62
20200033795
2020-01-30

Drum unit, cartridge and coupling member

 #63
20200033794
2020-01-30

Drum unit, cartridge and coupling member

 #64
20200033793
2020-01-30

Drum unit, cartridge and coupling member

 #65
20200033792
2020-01-30

Drum unit, cartridge and coupling member

 #66
20200033791
2020-01-30

Drum unit, cartridge and coupling member

 #67
20200026220
2020-01-23

Developer container having a cap with three portions of different diameters

 #68
20200004188
2020-01-02

Image forming apparatus

 #69
20190375607
2019-12-12

Sheet conveyor device and image forming system

 #70
20190352073
2019-11-21

Cushion structure

 #71
20190235431
2019-08-01

Printing system, method of controlling printing system, and non-transitory computer-readable storage medium

 #72
20190227477
2019-07-25

Drive unit

 #73
20190219948
2019-07-18

Toner cartridge and toner supplying mechanism

 #74
20190219947
2019-07-18

Toner cartridge and toner supplying mechanism

 #75
20190212695
2019-07-11

Developer supply system, developer supply container mounting method and developer supply unit

 #76
20190202221
2019-07-04

Movable body reciprocating mechanism, cleaning mechanism, optical scanning device, and image forming apparatus

 #77
20190173402
2019-06-06

Motor control apparatus that performs processing for detecting stop position of rotor, and image forming apparatus

 #78
20190171158
2019-06-06

Developing cartridge, processing cartridge, and image forming apparatus

 #79
20190147307
2019-05-16

Image forming apparatus, reader writer, and colorant cartridge

 #80
20190146404
2019-05-16

Developer supplying device and image forming apparatus therewith

 #81
20190129359
2019-05-02

Image forming apparatus, duct unit

 #82
20190101861
2019-04-04

Image forming apparatus

 #83
20190062080
2019-02-28

Locking mechanism for movable unit, and sheet feeding device and image forming apparatus provided therewith

 #84
20190061378
2019-02-28

Image forming apparatus

 #85
20190056690
2019-02-21

Developer collecting container

 #86
20190025754
2019-01-24

Electrophotographic image forming apparatus

 #87
20190004472
2019-01-03

Developing cartridge including developing coupling, and image forming apparatus including main body coupling connectable to developing coupling

 #88
20190004466
2019-01-03

Image forming apparatus capable of inserting sheet tray in one direction and discharging printed sheet in opposite direction

 #89
20180259898
2018-09-13

End member, photoreceptor drum unit, and process cartridge

 #90
20180253028
2018-09-06

Apparatus and method for preventing an information storage device from falling from a removable device

 #91
20180246445
2018-08-30

Image forming apparatus that cools toner container, recording sheet, and fixing device

 #92
20180227447
2018-08-09

Multi-function apparatus

 #93
20180188677
2018-07-05

Image forming apparatus

 #94
20180173156
2018-06-21

Toner container configured to be attachable to and detachable from a toner replenishing portion and a waste toner collecting portion

 #95
20180164737
2018-06-14

Image forming apparatus

 #96
20180150020
2018-05-31

Waste toner container and image forming apparatus including same

 #97
20180136603
2018-05-17

Image forming apparatus including a movable belt

 #98
20180095413
2018-04-05

Electrophotographic image forming apparatus

 #99
20180059601
2018-03-01

Photo interrupter unit, sheet conveyance apparatus and image forming apparatus

 #100
20180052408
2018-02-22

Developer container and image forming device equipped with same

 #101
20180024464
2018-01-25

Image forming device having a replaceable toner cartridge that includes an engagement member for actuating a shutter

 #102
20180019700
2018-01-18

CONTROLLER FOR PERMANENT MAGNET SYNCHRONOUS MOTOR, IMAGE FORMING APPARATUS, AND CONTROL METHOD

 #103
20180007220
2018-01-04

Image reader and image forming apparatus

 #104
20180004114
2018-01-04

IMAGE FORMING APPARATUS

 #105
20170351214
2017-12-07

Drum unit, cartridge and coupling member

 #106
20170346980
2017-11-30

Image forming apparatus including displayed notification to prompt cleaning of charger and storage medium

 #107
20170343914
2017-11-30

Developing unit, image forming unit, and image forming apparatus

 #108
20170322512
2017-11-09

Cartridge, photosensitive member unit and electrophotographic image forming apparatus

 #109
20170300005
2017-10-19

Image forming apparatus

 #110
20170289374
2017-10-05

Multi-function apparatus

 #111
20170285519
2017-10-05

Driving mechanism that controls state of motion conversion mechanism in desired state, and image forming apparatus including the same

 #112
20170269531
2017-09-21

Image forming apparatus

 #113
20170227885
2017-08-10

Powder container and image forming apparatus

 #114
20170158841
2017-06-08

Flame retardant composition

 #115
20170082966
2017-03-23

Shaft member, end member, photoreceptor drum unit, developing roller unit, and process cartridge

 #116
20170060077
2017-03-02

Image forming apparatus including option device attachable to and detachable from apparatus main body

 #117
20170006175
2017-01-05

Multi-function apparatus

 #118
20170003639
2017-01-05

Image-forming apparatus having structure for stably supporting belt unit

 #119
20160370731
2016-12-22

Toner cartridge having a movable engagement member that protrudes from a front of the toner cartridge for acutating a shutter

 #120
20160289425
2016-10-06

Flame retardant composition

 #121
20160274531
2016-09-22

Electrophotographic image forming apparatus

 #122
20160238978
2016-08-18

Printing system, method of controlling printing system, and non-transitory computer-readable storage medium

 #123
20160238969
2016-08-18

Image forming apparatus

 #124
20160202634
2016-07-14

Cartridge and image forming apparatus

 #125
20160170367
2016-06-16

Gear transmission device, process unit including the gear transmission device and image forming apparatus including same

 #126
20160072974
2016-03-10

Multi-function apparatus

 #127
20160070224
2016-03-10

Sheet processing apparatus and image forming system

 #128
20160054693
2016-02-25

Image forming apparatus with attachable/detachable duplex unit, control method therefor, and storage medium

 #129
20160039627
2016-02-11

Printing system improved in sheet discharge processing, method of controlling the same, and storage medium

 #130
20160026138
2016-01-28

Image forming apparatus with detachable fixing device, control method therefor, and storage medium storing control program therefor

 #131
20160004210
2016-01-07

Image-forming apparatus having structure for stably supporting belt unit

 #132
20150346641
2015-12-03

Image forming apparatus and toner container attachable to and detachable from image forming apparatus

 #133
20150338788
2015-11-26

Image forming apparatus having conductive sheet guide

 #134
20150331380
2015-11-19

Image forming apparatus

 #135
20150309469
2015-10-29

Image forming apparatus

 #136
20150301479
2015-10-22

Toner cartridge having an engagement member for actuating a shutter

 #137
20150293485
2015-10-15

Apparatus and method for preventing an information storage device from falling from a removable device

 #138
20150286184
2015-10-08

Image forming apparatus including rotatable cartridge supporting member

 #139
20150268621
2015-09-24

Removal device and image forming apparatus

 #140
20150268607
2015-09-24

Fixing device

 #141
20150261169
2015-09-17

Interlock/connector system for a replaceable item for an image forming device

 #142
20150241840
2015-08-27

Electrophotographic image forming apparatus

 #143
20150203309
2015-07-23

Document reading device

 #144
20150168905
2015-06-18

Unit pulling-out mechanism and image recording apparatus

 #145
20150147081
2015-05-28

Electronic apparatus having pivotable support member for supporting electric circuit board

 #146
20150117900
2015-04-30

Image forming apparatus provided with engaging portion configured to lock access assembly

 #147
20150093147
2015-04-02

Electrophotographic image forming apparatus

 #148
20150093145
2015-04-02

Image forming apparatus

 #149
20150069895
2015-03-12

Image forming apparatus

 #150
20150063952
2015-03-05

Post-processing apparatus and image forming system

 #151
20150061216
2015-03-05

Medium transport device and recording device

 #152
20150050060
2015-02-19

Image forming apparatus

 #153
20150043955
2015-02-12

IMAGE FORMING SYSTEM, IMAGE FORMING METHOD, AND COMPUTER-READABLE MEDIUM

 #154
20150037067
2015-02-05

Image forming device

 #155
20150003844
2015-01-01

Cartridge and image forming apparatus

 #156
20150000080
2015-01-01

Sheet feeding device and image forming apparatus

 #157
20140376946
2014-12-25

Image forming apparatus

 #158
20140375741
2014-12-25

Image forming apparatus and assembly system of image forming apparatus

 #159
20140363206
2014-12-11

Electronic apparatus having pivotable support member for supporting electric circuit board

 #160
20140356016
2014-12-04

Toner cartridge having a shutter with bypassing actuation

 #161
20140348532
2014-11-27

Interlock/connector system for a replaceable item for an image forming device

 #162
20140341602
2014-11-20

Apparatus and method for preventing an information storage device from falling from a removable device

 #163
20140334841
2014-11-13

Positioning mechanism for positioning drawer relative to casing of image forming device

 #164
20140314443
2014-10-23

Apparatus and method for preventing an information storage device from falling from a removable device

 #165
20140286670
2014-09-25

Apparatus and method for preventing an information storage device from falling from a removable device

 #166
20140270860
2014-09-18

Developing device and image forming apparatus

 #167
20140270815
2014-09-18

Cartridge detection

 #168
20140252931
2014-09-11

Stabilizer, image forming apparatus, and stabilizer mounting method

 #169
20140205317
2014-07-24

Sheet processing apparatus and image forming system

 #170
20140205303
2014-07-24

Image forming apparatus capable of receiving different cartridges

 #171
20140203694
2014-07-24

Image forming apparatus having pivotable casing

 #172
20140203503
2014-07-24

Sheet transport device

 #173
20140199095
2014-07-17

Image forming apparatus provided with a developing unit storage portion and a developing unit mounting portion

 #174
20140186068
2014-07-03

Image forming apparatus with sealing frame structure

 #175
20140140727
2014-05-22

Image forming apparatus

 #176
20140126929
2014-05-08

Image forming apparatus

 #177
20140112682
2014-04-24

Storage device and image forming apparatus

 #178
20140086623
2014-03-27

Image forming apparatus with cartridge support

 #179
20140056611
2014-02-27

Method for restoring imaging cartridge chip

 #180
20140055016
2014-02-27

Image forming apparatus including drawer with variable length cable holder

 #181
20140050506
2014-02-20

Exposing device, method of manufacturing the same, and image forming apparatus

 #182
20140037325
2014-02-06

Apparatus and method for preventing an information storage device from falling from a removable device

 #183
20140029975
2014-01-30

Image forming apparatus with an exposed sheet-pressing swingable plate

 #184
20140028170
2014-01-30

Image Processing Apparatus

 #185
20140016962
2014-01-16

Image forming apparatus

 #186
20140001696
2014-01-02

Sheet feeding device and image forming apparatus

 #187
20130323633
2013-12-05

BRILLIANT TONER, DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

 #188
20130322909
2013-12-05

Positioning device to position a first member relative to a second member and image forming apparatus incorporating same

 #189
20130287438
2013-10-31

Image forming apparatus

 #190
20130272724
2013-10-17

Cartridge and image forming apparatus

 #191
20130259515
2013-10-03

Image forming apparatus

 #192
20130230335
2013-09-05

Unit moving device and image forming apparatus

 #193
20130223877
2013-08-29

Apparatus and method for preventing an information storage device from falling from a removable device

 #194
20130201267
2013-08-08

Image forming apparatus and assembly system of image forming apparatus

 #195
20130188985
2013-07-25

Information storage device, removable device, developer container, and image forming apparatus

 #196
20130170846
2013-07-04

Image forming apparatus having toner replenishment unit

 #197
20130164025
2013-06-27

Image forming apparatus

 #198
20130114191
2013-05-09

Booklet storage and electronic apparatus

 #199
20130106267
2013-05-02

Image forming apparatus having side cover including finger receiving portion

 #200
20130071139
2013-03-21

Image forming apparatus

 #201
20130028635
2013-01-31

Cover member and cartridge

 #202
20130016991
2013-01-17

Electronic apparatus having pivotable support member for supporting electric circuit board

 #203
20120321345
2012-12-20

Cartridge

 #204
20120308264
2012-12-06

Electrophotographic image forming apparatus

 #205
20120251165
2012-10-04

Cartridge detection

 #206
20120207511
2012-08-16

Image forming device

 #207
20120200871
2012-08-09

Information storage device, removable device, developer container, and image forming apparatus

 #208
20120195633
2012-08-02

Electro-photographic type image forming device and photosensitive unit provided in the same

 #209
20120174267
2012-07-05

Corn event 5307

 #210
20120162683
2012-06-28

Image forming apparatus, system for ordering optional device, and method for ordering optional device

 #211
20120141165
2012-06-07

Electrophotographic image forming apparatus with movable tray for mounting cartridges

 #212
20120134712
2012-05-31

Photosensitive body unit and image forming apparatus including the same

 #213
20120080987
2012-04-05

Image forming apparatus and opening/closing device

 #214
20120042407
2012-02-16

Corn event 5307

 #215
20120027455
2012-02-02

Image forming apparatus having a holding member for holding a cartridge

 #216
20110318059
2011-12-29

Image forming apparatus

 #217
20110299885
2011-12-08

Image forming apparatus having a cartridge and an exposure device that can each be rotated and inclined at different angles to detach the cartridge

 #218
20110262173
2011-10-27

Image formation device having first frame for supporting image formation unit and second frame of lower flexure rigidity

 #219
20110262165
2011-10-27

Image forming apparatus having a motor to drive a developer retaining unit and a fixing unit

 #220
20110255881
2011-10-20

Image forming apparatus and structure for installing consumables thereof

 #221
20110243590
2011-10-06

Image forming apparatus

 #222
20110243578
2011-10-06

Cartridge

 #223
20110189604
2011-08-04

Toner for electrostatic latent image development, electrostatic latent image developer, toner cartridge, process cartridge, and image forming apparatus

 #224
20110097110
2011-04-28

Image forming apparatus having structure for securing removable unit

 #225
20110075232
2011-03-31

Image forming apparatus

 #226
20110075178
2011-03-31

Multi-function apparatus

 #227
20110064458
2011-03-17

Image-forming apparatus with improved positioning for medium conveyance

 #228
20110058847
2011-03-10

Image forming apparatus performing image formation by conveying paper

 #229
20110020016
2011-01-27

IMAGE FORMING APPARATUS

 #230
20110020015
2011-01-27

Electronic apparatus, image forming apparatus, and connection confirmation method for connectors

 #231
20100329739
2010-12-30

Method and apparatus for aligning coupled digital print engines

 #232
20100316407
2010-12-16

Image forming apparatus having registration designation for optional apparatus

 #233
20100310271
2010-12-09

Two-color IOI drum module enabling N-color monochrome, highlight, full color, phototone color and extended color architectures

 #234
20100308533
2010-12-09

Stabilizer, image forming apparatus, and stabilizer mounting method

 #235
20100232092
2010-09-16

IMAGE WRITING UNIT AND IMAGE RECORDING DEVICE USING THE SAME

 #236
20100207323
2010-08-19

IMAGE FORMING APPARATUS

 #237
20100196072
2010-08-05

MODULAR COLOR XEROGRAPHIC PRINTING ARCHITECTURE

 #238
20100111554
2010-05-06

Image forming apparatus including corona charger

 #239
20100110134
2010-05-06

Image forming apparatus and assembly system of image forming apparatus

 #240
20100086317
2010-04-08

Image forming apparatus having improved serviceability

 #241
20100080615
2010-04-01

Electrophotographic image forming apparatus

 #242
20100061779
2010-03-11

Lubricant supplying unit, process unit incorporating same, image forming apparatus incorporating same, and method of manufacturing same

 #243
20100054812
2010-03-04

Exposing device, method of manufacturing the same, and image forming apparatus

 #244
20100054795
2010-03-04

Image forming apparatus and image forming unit

 #245
20100014886
2010-01-21

Stand of image forming apparatus and image forming apparatus having the same

 #246
20090302521
2009-12-10

Image forming apparatus, optional sheet feeder, and base plate member

 #247
20090274484
2009-11-05

Frame and image forming apparatus using the frame

 #248
20090263145
2009-10-22

Diagnostic method and system for modular printing systems

 #249
20090169295
2009-07-02

Pushbutton mechanism and image forming apparatus

 #250
20090169281
2009-07-02

Image forming apparatus

 #251
20090141111
2009-06-04

Recording device having a conveying unit that conveys a recording medium

 #252
20090123183
2009-05-14

Rotation transmission device and image forming apparatus

 #253
20090116868
2009-05-07

Methods for imaging cartridge conversion

 #254
20090039642
2009-02-12

APPARATUS-INFORMATION INDICATOR, LABEL SHEET, AND ELECTRONIC APPARATUS AND IMAGE FORMING APPARATUS HAVING THE SAME

 #255
20090010678
2009-01-08

Image forming apparatus having a driving gear unit and a support guide

 #256
20080292355
2008-11-27

Electrophotographic image forming apparatus with movable tray for supporting a cartridge

 #257
20080226347
2008-09-18

Electronic apparatus and image forming apparatus

 #258
20080205953
2008-08-28

Image forming apparatus having a locking mechanism for preventing a conveyance unit from being pulled out from the image forming apparatus

 #259
20080166139
2008-07-10

Consumable supplying member and toner container

 #260
20080124121
2008-05-29

Image recording apparatus with first and second pullout units

 #261
19054417
2025-11-11

Method of assembling a belt conveyance apparatus

 #262
14948952
2017-01-17

Fuser locking assembly for an electrophotographic imaging device

 #263
14918165
2017-01-03

Positioning mechanism for a roller of an intermediate transfer member module

 #264
14824127
2016-11-15

Toner micro-container