Patents-Review.com
ClassID:

178471 ⎘

G03G2221/1642 - CPC Classification

Classification description:

Processes not provided for by group , e.g. cleaning or residual charge elimination; Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements and complete machine concepts for the transfer unit

Recent Application in this class:
#1
20260086495
2026-03-26

IMAGE FORMING APPARATUS

 #2
20260029746
2026-01-29

IMAGE FORMING APPARATUS

 #3
20250377628
2025-12-11

IMAGE FORMING APPARATUS

 #4
20250334922
2025-10-30

IMAGE FORMING APPARATUS

 #5
20250306515
2025-10-02

IMAGE FORMING APPARATUS, CONTROL METHOD FOR IMAGE FORMING APPARATUS, AND STORAGE MEDIUM

 #6
20250291285
2025-09-18

IMAGE FORMING APPARATUS

 #7
20250189925
2025-06-12

IMAGE FORMING APPARATUS

 #8
20250110448
2025-04-03

IMAGE FORMING APPARATUS

 #9
20250036070
2025-01-30

INTERMEDIATE TRANSFER UNIT AND IMAGE FORMING APPARATUS

 #10
20240411264
2024-12-12

IMAGE FORMING APPARATUS

 #11
20240302787
2024-09-12

IMAGE FORMING APPARATUS

 #12
20240280938
2024-08-22

IMAGE FORMING APPARATUS

 #13
20240176263
2024-05-30

PRESSING DEVICE AND IMAGE FORMING APPARATUS

 #14
20240168413
2024-05-23

IMAGE FORMING APPARATUS

 #15
20240069487
2024-02-29

Image forming apparatus

 #16
20240053693
2024-02-15

Image forming apparatus having a detachable transfer unit including transfer belt and a swingable cleaning unit

 #17
20240027941
2024-01-25

Image forming apparatus including secondary transfer device positioner for maintainability

 #18
20230384733
2023-11-30

Image forming apparatus

 #19
20230251602
2023-08-10

Image forming apparatus

 #20
20230236539
2023-07-27

Image forming apparatus having an adhesion-suppressing component to suppress adhesion of floating matter

 #21
20230123409
2023-04-20

Cleaning apparatus for cleaning an element that bears a toner image and image forming apparatus having the cleaning apparatus

 #22
20230118753
2023-04-20

Image forming apparatus having a detachable transfer unit including a transfer belt and a swingable cleaning unit

 #23
20230063746
2023-03-02

Transfer device and image forming apparatus having nip member with predetermined geometry

 #24
20220334518
2022-10-20

Servicing a drum at a printer

 #25
20220100142
2022-03-31

Protection member, replacement component with protection member, and image forming apparatus

 #26
20200255248
2020-08-13

Image forming apparatus, transfer method, and storage medium storing transfer control program

 #27
20200026222
2020-01-23

Belt conveyor device and image forming apparatus provided with the same

 #28
20190361388
2019-11-28

Image forming apparatus

 #29
20190101856
2019-04-04

Image forming apparatus, discrimination system and unit discrimination method of image forming apparatus

 #30
20190064728
2019-02-28

Image forming apparatus comprising intermediate transfer unit movably supported on main body cover

 #31
20180246446
2018-08-30

Roller unit and image forming apparatus

 #32
20180181031
2018-06-28

Transfer unit and image forming apparatus including same

 #33
20180150021
2018-05-31

Image forming apparatus with pivotable transfer unit positioning portion

 #34
20180059607
2018-03-01

Bearing device and transferring device

 #35
20170300003
2017-10-19

Image forming apparatus

 #36
20170242371
2017-08-24

Image forming apparatus with a support to adjust a rotator and a guide

 #37
20170003639
2017-01-05

Image-forming apparatus having structure for stably supporting belt unit

 #38
20160266522
2016-09-15

Image forming apparatus capable of preventing displacement of transfer unit

 #39
20160238969
2016-08-18

Image forming apparatus

 #40
20160202660
2016-07-14

Image forming apparatus with removable unit and a connectable device to connect to the removable unit

 #41
20160170364
2016-06-16

Image forming apparatus including contact members disposed side by side at positions opposing a guide unit

 #42
20160004210
2016-01-07

Image-forming apparatus having structure for stably supporting belt unit

 #43
20140348554
2014-11-27

Image forming apparatus having cleaning unit including waste developer box

 #44
20140270863
2014-09-18

Transfer unit and image forming apparatus employing the transfer unit

 #45
20130343772
2013-12-26

Load abnormality detection apparatus performing accurate judgment of cause of abnormality

 #46
20130251397
2013-09-26

Image forming apparatus

 #47
20130121715
2013-05-16

Intermediate transfer device, image forming apparatus and secondary transfer method

 #48
20120328348
2012-12-27

Image forming apparatus having waste toner box

 #49
20120328331
2012-12-27

Image forming apparatus

 #50
20120269548
2012-10-25

Image forming apparatus and image forming method

 #51
20120269546
2012-10-25

Image forming apparatus and image forming method

 #52
20120251149
2012-10-04

Image forming apparatus and transfer device having attachable developing unit

 #53
20120237257
2012-09-20

COLOR IMAGE FORMING APPARATUS

 #54
20120219313
2012-08-30

Image forming apparatus

 #55
20120213548
2012-08-23

Image forming apparatus having coupling for driving transfer unit

 #56
20120207493
2012-08-16

Rotating mechanism driving apparatus, image forming apparatus, non-transitory readable medium in which computer program for executing method for driving the rotating mechanism is recorded, rotating mechanism driving system and image forming system

 #57
20120163863
2012-06-28

Image forming apparatus

 #58
20120148302
2012-06-14

Image forming apparatus

 #59
20120148276
2012-06-14

Image forming apparatus and control method for the same

 #60
20120141182
2012-06-07

Image forming device having detachable drum unit

 #61
20120099896
2012-04-26

Transfer device of image forming apparatus and related image forming apparatus

 #62
20120076553
2012-03-29

Belt device and image-forming apparatus

 #63
20120050436
2012-03-01

Image Transfer Element with Balanced Constant Force Load

 #64
20120014729
2012-01-19

Image forming apparatus having waste toner box

 #65
20120003005
2012-01-05

Electrophotographic image forming apparatus

 #66
20110311273
2011-12-22

Developing-transferring module and image forming apparatus having the same

 #67
20110293336
2011-12-01

Cam driving mechanism, and belt transporting apparatus and image forming apparatus therewith

 #68
20110280624
2011-11-17

Image forming apparatus

 #69
20110236059
2011-09-29

Image forming apparatus having a rotary body that includes shaft portions fitted into positioning grooves

 #70
20110229163
2011-09-22

Load abnormality detection apparatus performing accurate judgment of cause of abnormality

 #71
20110211871
2011-09-01

Image forming apparatus having transfer belt spacing mechanism

 #72
20110211862
2011-09-01

Image forming apparatus

 #73
20110182628
2011-07-28

Image forming apparatus and image forming method

 #74
20110150529
2011-06-23

Belt device and image-forming apparatus

 #75
20110150514
2011-06-23

Method for automatically correcting transfer pressure non-uniformity using the cross process uniformity

 #76
20110142484
2011-06-16

Image forming apparatus having a cleaning unit

 #77
20110120331
2011-05-26

IMAGE TRANSFER BLANKETS FOR PRINTING APPARATUSES

 #78
20110110686
2011-05-12

Image forming apparatus

 #79
20110110684
2011-05-12

Image forming apparatus having an image transfer unit movably attached to an opening and closing member

 #80
20110097111
2011-04-28

Image forming apparatus

 #81
20110069991
2011-03-24

Image forming apparatus employing an electrical charge removal device with an improved configuration

 #82
20110069990
2011-03-24

Transfer device and image forming apparatus

 #83
20110064458
2011-03-17

Image-forming apparatus with improved positioning for medium conveyance

 #84
20110033206
2011-02-10

Driving force transmitting device and image forming apparatus including the same

 #85
20100316399
2010-12-16

Image forming apparatus, and unit removably installed in an image forming apparatus

 #86
20100272478
2010-10-28

Image forming apparatus

 #87
20100253741
2010-10-07

PRINTER WITH PRINT HEAD AND INK TRANSFER ROLLER

 #88
20100247145
2010-09-30

Apparatus and spacer for use therein

 #89
20100221045
2010-09-02

Image forming apparatus

 #90
20100215407
2010-08-26

Removable member-holding device and image forming apparatus

 #91
20100215399
2010-08-26

Image forming device capable of improving precision in relative positioning of conveying unit and fixing unit

 #92
20100215397
2010-08-26

IMAGE FORMING APPARATUS

 #93
20100215395
2010-08-26

Removable member-holding device and image forming apparatus

 #94
20100196046
2010-08-05

Image forming device facilitating replacement of belt unit

 #95
20100189462
2010-07-29

Image forming apparatus having a first coupling and a second coupling

 #96
20100166455
2010-07-01

Image forming apparatus

 #97
20100150607
2010-06-17

Intermediate transfer unit and image forming apparatus including the same

 #98
20100142997
2010-06-10

Transfer device with contact pressure adjustment mechanism and image forming device using the same

 #99
20100135704
2010-06-03

Belt unit and image forming apparatus

 #100
20100129113
2010-05-27

IMAGE FORMING APPARATUS

 #101
20100095503
2010-04-22

Method for changing a belt in a machine assembly using a gripper having moveable opposed legs

 #102
20100080612
2010-04-01

Frame structure for an image forming apparatus

 #103
20100067933
2010-03-18

System and method for varying transfer pressure applied by a transfer roller in a printer

 #104
20100046993
2010-02-25

Image forming apparatus

 #105
20100034565
2010-02-11

Intermediate transfer device, image forming apparatus and secondary transfer method

 #106
20100028035
2010-02-04

Image forming apparatus and control method for the same

 #107
20100008696
2010-01-14

Transfer unit and image forming apparatus employing the transfer unit

 #108
20100003059
2010-01-07

Bearing member, belt unit, and image forming device

 #109
20100003051
2010-01-07

Transfer unit and image forming apparatus

 #110
20090311003
2009-12-17

Cleaning roller for cleaning image bearing member

 #111
20090311002
2009-12-17

Cleaning device and image forming apparatus incorporating same

 #112
20090310986
2009-12-17

Image forming apparatus, intermediate transfer belt drive control method, computer program, and recording medium

 #113
20090304426
2009-12-10

Image conveyance unit, intermediate transfer unit, electrostatic transfer unit, and image forming apparatus

 #114
20090290892
2009-11-26

Image forming apparatus

 #115
20090285593
2009-11-19

Image forming apparatus having a cleaning unit

 #116
20090279905
2009-11-12

Image forming apparatus having a detachable unit including a first rotary member and a second rotary member

 #117
20090245860
2009-10-01

Image forming apparatus with a belt unit and a mark sensor

 #118
20090239695
2009-09-24

Belt installation/removal guide

 #119
20090238621
2009-09-24

Image forming apparatus

 #120
20090226223
2009-09-10

TRANSFER DEVICE, CONVEYING DEVICE AND IMAGE FORMING APPARATUS INCLUDING THESE DEVICES

 #121
20090226212
2009-09-10

Image-forming device

 #122
20090226210
2009-09-10

Image-forming device with detachable belt unit

 #123
20090200735
2009-08-13

Recording apparatus having a movable blocking plate for trapping foreign substances

 #124
20090196651
2009-08-06

Transfer apparatus and image forming apparatus including the same

 #125
20090190978
2009-07-30

Image forming device having detachable drum unit

 #126
20090190954
2009-07-30

Image forming apparatus

 #127
20090169271
2009-07-02

Electronic photograph printer

 #128
20090169254
2009-07-02

Electrophotographic printer

 #129
20090169236
2009-07-02

Lubricant applying device and image forming apparatus

 #130
20090169233
2009-07-02

Image formation device

 #131
20090153635
2009-06-18

Image transfer element with balanced constant force load

 #132
20090141111
2009-06-04

Recording device having a conveying unit that conveys a recording medium

 #133
20090129815
2009-05-21

Image forming apparatus with a secondary-transfer-roller releasing mechanism

 #134
20090123201
2009-05-14

IMAGE FORMING APPARATUS

 #135
20090123178
2009-05-14

Image forming apparatus having detachable intermediate transfer body

 #136
20090110436
2009-04-30

Image forming apparatus having releasing mechanism for removable toner-image conveyance belt

 #137
20090110435
2009-04-30

Belt installation tool

 #138
20090087233
2009-04-02

Belt unit and image forming apparatus using the same

 #139
20090080948
2009-03-26

Image forming apparatus

 #140
20090078543
2009-03-26

Belt unit and image forming apparatus

 #141
20090074481
2009-03-19

Detachable transfer unit used for image forming apparatus and operation method of the transfer unit

 #142
20090062047
2009-03-05

Belt installation guides

 #143
20090060605
2009-03-05

Belt device and image-forming apparatus

 #144
20090057103
2009-03-05

Belt installation guides

 #145
20090051943
2009-02-26

Dual printhead controller architecture for ink quality assurance circuitry

 #146
20090022514
2009-01-22

Image forming apparatus including cover and supporting unit

 #147
20090016783
2009-01-15

Color printer toner transfer belt system and process

 #148
20090010677
2009-01-08

Cover opening and closing unit, image forming apparatus having the same, and method of removing and mounting cover

 #149
20090003894
2009-01-01

Belt assembly, and a transfer unit and an image forming apparatus having the same

 #150
20080317520
2008-12-25

Image forming apparatus for realizing downsizing of a main body of the apparatus

 #151
20080261143
2008-10-23

Image forming apparatus and image forming method

 #152
20080260423
2008-10-23

Intermediate transfer unit-mounting and dismounting mechanism and intermediate transfer unit-mounting and dismounting method

 #153
20080247795
2008-10-09

Color image forming apparatus, and toner replenishing apparatus

 #154
20080240750
2008-10-02

Image forming apparatus, and unit removably installed in an image forming apparatus

 #155
20080234085
2008-09-25

BELT, BELT GUIDE AND IMAGE FORMING APPARATUS HAVING THE SAME

 #156
20080226358
2008-09-18

Image forming apparatus with a phase of a first load torque substantially opposite to a phase of a second load torque

 #157
20080219733
2008-09-11

IMAGE FORMING DEVICE WITH INTERLOCKED MECHANISM

 #158
20080212987
2008-09-04

IMAGE FORMING APPARATUS AND METHOD OF CONTROLLING THE SAME

 #159
20080205947
2008-08-28

Image forming apparatus and image forming method

 #160
20080192268
2008-08-14

Dual printhead controller architecture having hidden slave

 #161
20080181681
2008-07-31

Locking apparatus and image forming apparatus having the same

 #162
20080175619
2008-07-24

Transfer assembly and image forming apparatus including same

 #163
20080170881
2008-07-17

Developing-transferring module and image forming apparatus having the same

 #164
20080145122
2008-06-19

IMAGE FORMING APPARATUS

 #165
20080138112
2008-06-12

Image forming apparatus with a removable transferring unit

 #166
20080138111
2008-06-12

Transfer unit, image forming apparatus having the same, and method thereof

 #167
20080124120
2008-05-29

Belt driving device, transfer unit using the same and image forming apparatus using the transfer unit

 #168
20080118269
2008-05-22

Film loader for an image forming apparatus

 #169
20080111848
2008-05-15

Print engine with a transfer roller for a recess-mountable pagewidth printer

 #170
20080044201
2008-02-21

Image forming apparatus including a plurality of image forming units disposed so as to be removable without damaging an intermediate transferring member

 #171
20080044193
2008-02-21

Image-forming device preventing adverse effects on image formation and on detection of optical sensor

 #172
20080038013
2008-02-14

Electrophotographic image forming device enabling to easily mount belt unit at regular position

 #173
20080028967
2008-02-07

Image forming apparatus

 #174
20080006166
2008-01-10

Image forming apparatus having removable units

 #175
20080006165
2008-01-10

Printer with ink transfer roller and cleaning station

 #176
20080003024
2008-01-03

Image forming apparatus

 #177
20080003023
2008-01-03

Image forming apparatus and belt conveying device

 #178
20080003018
2008-01-03

Image forming apparatus

 #179
20070286649
2007-12-13

Image forming apparatus with locking means

 #180
20070286640
2007-12-13

Transfer unit and image forming apparatus

 #181
20070264045
2007-11-15

Photosensitive member cartridge

 #182
20070253730
2007-11-01

Image forming apparatus having mechanism for reducing pressing force between image bearing member and transferring member

 #183
20070231000
2007-10-04

Transfer belt unit mounting/dismounting device and method

 #184
20070225095
2007-09-27

Image forming apparatus with adjustment of belt member

 #185
20070223967
2007-09-27

Image forming apparatus with adjustment of belt member

 #186
20070217832
2007-09-20

Image forming apparatus

 #187
20070212108
2007-09-13

Image forming device

 #188
20070183816
2007-08-09

Transfer device and image forming apparatus including the same

 #189
20070177902
2007-08-02

Color image forming apparatus, and toner replenishing apparatus

 #190
20070177894
2007-08-02

Image forming apparatus having belt unit

 #191
20070166074
2007-07-19

IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE REMOVABLY MOUNTED THERETO

 #192
20070160382
2007-07-12

Image forming apparatus

 #193
20070151829
2007-07-05

Transfer belt unit and image forming apparatus having the same

 #194
20070147872
2007-06-28

Image forming apparatus having high voltage power supplies

 #195
20070127947
2007-06-07

Image forming apparatus capable of effectively performing a maintenance operation

 #196
20070110476
2007-05-17

Transfer unit-fixing apparatus and image forming device having the same

 #197
20070092293
2007-04-26

Cover members for an image forming apparatus

 #198
20070092292
2007-04-26

Image forming device with interlocked mechanism

 #199
20070059037
2007-03-15

Image forming apparatus featuring pull-out developing and sheet feeding devices

 #200
20070048010
2007-03-01

Image forming apparatus with combined belt unit and sheet guide member

 #201
20070036585
2007-02-15

Image forming apparatus having a movable transfer unit

 #202
20070036584
2007-02-15

Image forming apparatus and image transferring unit for use in the same

 #203
20070036579
2007-02-15

Cleaning unit with a light beam path for the passage of a light beam

 #204
20070025762
2007-02-01

Image forming apparatus with a belt unit

 #205
20070009285
2007-01-11

Method for handling an endless belt for an electrophotographic printer, and a storage unit having a retaining device for this endless belt

 #206
20070008397
2007-01-11

Image forming apparatus

 #207
20060291901
2006-12-28

Image forming apparatus with conveyance unit regulating structure

 #208
20060285881
2006-12-21

Transfer assembly and a method for mounting

 #209
20060280531
2006-12-14

Transfer-detack assembly for a xerographic printer

 #210
20060280530
2006-12-14

Image forming method and apparatus with sensors for detecting an amount of light with respect to an endless moving member

 #211
20060268293
2006-11-30

Dual printhead controller architecture

 #212
20060250466
2006-11-09

Inkjet printer incorporating an ink transfer roller

 #213
20060225592
2006-10-12

Image-forming apparatus including a device to attach and detach a transfer roller from a main body frame thereof

 #214
20060216056
2006-09-28

Image-forming device and belt unit having belt tension-adjusting mechanism

 #215
20060215007
2006-09-28

Printer with a driven print media carriage

 #216
20060210324
2006-09-21

Belt device including an annular belt, and an image forming apparatus for detection of rotational angular speed or rotational angular displacement

 #217
20060210307
2006-09-21

Image forming apparatus and belt unit

 #218
20060204278
2006-09-14

Film loader for an image forming apparatus

 #219
20060193656
2006-08-31

Belt unit for image-forming apparatus

 #220
20060182473
2006-08-17

Image forming device having a sheet delay transfer mode

 #221
20060120775
2006-06-08

Color image forming apparatus, and toner replenishing apparatus

 #222
20060119687
2006-06-08

Central processor integrated circuitry for a print controller of a pagewidth printhead

 #223
20060110191
2006-05-25

Wide latitude printing system

 #224
20060104664
2006-05-18

Image forming apparatus

 #225
20060099008
2006-05-11

Image forming apparatus featuring accurate positioning of an intermediate transfer roller relative to a main body of the apparatus

 #226
20060098034
2006-05-11

Print engine for double-sided printing

 #227
20060093397
2006-05-04

Image forming device with carrying member provided in door positioned to photoconductive drum

 #228
20060083543
2006-04-20

Printer apparatus

 #229
20060067746
2006-03-30

Transfer belt device and image forming apparatus

 #230
20060067745
2006-03-30

Transfer belt device and image forming apparatus

 #231
20060062593
2006-03-23

Apparatus and method for image forming

 #232
20060056878
2006-03-16

Photosensitive member cartridge

 #233
20060056877
2006-03-16

Photosensitive member cartridge

 #234
20060056876
2006-03-16

Photosensitive member cartridge

 #235
20060055758
2006-03-16

Page-width inkjet printer with printhead-transfer roller arrangement

 #236
20060045570
2006-03-02

Belt unit, image forming apparatus using the belt unit

 #237
20060045556
2006-03-02

System and method for transfer of an electrical voltage to/from a rotating roller

 #238
20060024087
2006-02-02

Photoreceptor module

 #239
20060013612
2006-01-19

Image forming device

 #240
20060008296
2006-01-12

Image forming apparatus

 #241
20050281584
2005-12-22

Image forming apparatus and image transferring unit for use in the same

 #242
20050276637
2005-12-15

Laser printer with diselectrification brush

 #243
20050265747
2005-12-01

Attaching and detaching a process cartridge of an image forming device

 #244
20050254855
2005-11-17

Image forming unit

 #245
20050244190
2005-11-03

Image forming apparatus and belt unit therefor, and image forming system

 #246
20050244187
2005-11-03

Two-station type color image forming apparatus with separately replaceable components

 #247
20050231821
2005-10-20

Unit supporting device and image forming apparatus

 #248
20050220488
2005-10-06

Image forming apparatus

 #249
20050214025
2005-09-29

Attachable/detachable transfer device, an attachable/detachable cartridge and an image forming apparatus

 #250
20050206712
2005-09-22

Print engine with a printhead assembly arranged within a media tray assembly

 #251
20050169667
2005-08-04

Image forming method and apparatus with a transfer belt

 #252
20050151779
2005-07-14

Printhead-transfer roller arrangement

 #253
20050150397
2005-07-14

Image transfer element with balanced constant load force

 #254
20050135837
2005-06-23

Photosensitive member cartridge

 #255
20050084291
2005-04-21

Transfer unit used with image forming apparatus

 #256
20050084290
2005-04-21

Transfer unit mounting device and image forming apparatus having the same

 #257
20050084285
2005-04-21

Image forming device

 #258
20050083389
2005-04-21

Printer simultaneously printing on both surfaces of a sheet

 #259
20050078161
2005-04-14

Transfer roller assembly for a compact printer

 #260
20050074259
2005-04-07

Detaching/attaching mechanism and image forming device

 #261
20050063732
2005-03-24

Image forming apparatus with adjustment of belt member

 #262
20050046685
2005-03-03

Printhead assembly arranged within a media tray assembly

 #263
20050019064
2005-01-27

Color image forming apparatus, and toner replenishing apparatus

 #264
20050013629
2005-01-20

Image forming device

 #265
20050002687
2005-01-06

System to replace a photosensitive unit and a transfer unit and a printer having the system

 #266
19054417
2025-11-11

Method of assembling a belt conveyance apparatus

 #267
17117313
2022-01-18

Image forming apparatus

 #268
15903901
2019-03-19

Field replacement transfer belt unit

 #269
14918165
2017-01-03

Positioning mechanism for a roller of an intermediate transfer member module

 #270
14717024
2016-05-17

Deskewing mechanism for an intermediate transfer belt module and imaging drums in an electrophotographic printer

 #271
14624445
2016-03-22

Image forming apparatus