公开(公告)号：US10061224B1

公开(公告)日：2018-08-28

申请号：US15672427

申请日：2017-08-09

申请人： S-Printing Solution Co., Ltd.

发明人： Jeong-won Hwang ,  Young-min Yoon

IPC分类号： G03G15/00 ,  G03G15/043 ,  G03G21/16

CPC分类号： G03G15/0435 ,  G03G15/5058 ,  G03G21/1666 ,  G03G2215/00059 ,  G03G2215/0158 ,  G03G2221/1636

摘要： An image forming apparatus includes: a photoreceptor; an exposing unit comprising a light window and a light source; a developing unit; a transfer unit; a sensing unit comprising a sensor sensing a toner image of the transfer unit; and a shutter unit configured to open or close the light window and the sensor, wherein the shutter unit includes: a motor configured to have a driving shaft rotating in a first rotation direction and a second rotation direction; a first shutter part configured to open or close the light window by receiving driving force transferred from the driving shaft when the driving shaft rotates in the first and second rotation directions; and a second shutter part configured to open or close the sensor by receiving driving force transferred from the driving shaft when the driving shaft rotates in the second rotation direction.

公开(公告)号：US20180210375A1

公开(公告)日：2018-07-26

申请号：US15653528

申请日：2017-07-19

申请人： KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA TEC KABUSHIKI KAISHA

发明人： Masato OGASAWARA ,  Koichiro SATO

IPC分类号： G03G15/16

CPC分类号： G03G15/1615 ,  B65H2407/21 ,  G03G15/1675 ,  G03G15/5054 ,  G03G15/6564 ,  G03G15/6591 ,  G03G15/6594 ,  G03G2215/00059 ,  G03G2215/00075 ,  G03G2215/00156

摘要： An image forming apparatus includes an image transfer unit configured to transfer an image formed on an image carrier to a sheet, according to a transfer control parameter, and a transfer control unit. The transfer unit is configured to set the transfer control parameter to a first value when a first portion of the image is being transferred to a first area of the sheet and to a second value when a second portion of the image is being transferred to a second area of the sheet transfers an image formed on an image carrier to a sheet.

公开(公告)号：US20180157209A1

公开(公告)日：2018-06-07

申请号：US15831566

申请日：2017-12-05

申请人： Junpei Fujita ,  Katsuhito Haruno ,  Atsushi Nakamoto ,  Masakazu Imai ,  Osamu Ichihashi ,  Takehide Mizutani ,  Naoto Kochi

发明人： Junpei Fujita ,  Katsuhito Haruno ,  Atsushi Nakamoto ,  Masakazu Imai ,  Osamu Ichihashi ,  Takehide Mizutani ,  Naoto Kochi

IPC分类号： G03G15/16

CPC分类号： G03G21/0094 ,  G03G15/161 ,  G03G15/1675 ,  G03G15/5008 ,  G03G21/0011 ,  G03G2215/00059

摘要： A transfer device includes an image bearer, a rotatable body, a solid lubricant assembly, and a guide. An image bearer bears an image. The rotatable body forms a transfer nip with the image bearer to rotate in contact with a recording medium. An image on the image bearer is transferred onto the recording medium at the transfer nip. The solid lubricant assembly includes a solid lubricant and extends in a longitudinal direction of the rotatable body. The solid lubricant assembly applies a solid lubricant to at least one of the rotatable body and the image bearer. The guide guides the recording medium and positions the solid lubricant assembly.

公开(公告)号：US09927757B2

公开(公告)日：2018-03-27

申请号：US15384543

申请日：2016-12-20

申请人： OMRON CORPORATION

发明人： Hajime Kawai ,  Junichi Maekawa ,  Masato Ueda

IPC分类号： G03G15/00 ,  G01J1/02

CPC分类号： G03G15/556 ,  G01J1/0214 ,  G03G15/5054 ,  G03G15/5058 ,  G03G2215/00059 ,  G03G2215/0148

摘要： A toner density sensor includes: a light emitting element configured to radiate light; a light receiving element configured to receive the light emitted from the light emitting element and reflected from a detection object; a substrate whereon the light emitting element and the light receiving element are surface mounted; a case covering the light emitting element and the light receiving element; an optical path configured parallel to the substrate for light generated from the light emitting element; a groove provided in the substrate from the end part of the substrate in the direction light travels from the light emitting element to between the light emitting element and the light receiving element, the groove recessed from the mounting surface in the thickness direction of the substrate; and an insert provided to the case and configured for insertion into the groove.

公开(公告)号：US20180059602A1

公开(公告)日：2018-03-01

申请号：US15681749

申请日：2017-08-21

申请人： CANON KABUSHIKI KAISHA

发明人： Yusuke Minato

IPC分类号： G03G15/00 ,  G03G15/16

CPC分类号： G03G15/5058 ,  G03G15/1605 ,  G03G15/161 ,  G03G15/162 ,  G03G15/1675 ,  G03G15/168 ,  G03G2215/00042 ,  G03G2215/00059 ,  G03G2215/0177

摘要： An image forming apparatus includes an image bearing member, a transfer roller, a power feeding rotary member, and a controller. The controller is configured to execute the cleaning mode such that a period in which the cleaning mode is executed comprises a first application period during which a reverse polarity bias having a polarity reverse to that of the transfer bias is continuously applied to the power feeding rotary member, and a second application period during which a same polarity bias having a same polarity with that of the transfer bias is continuously applied to the power feeding rotary member.

公开(公告)号：US09836676B2

公开(公告)日：2017-12-05

申请号：US14747475

申请日：2015-06-23

申请人： CANON KABUSHIKI KAISHA

发明人： Asako Hashizume

IPC分类号： H04N1/60 ,  G06K15/02 ,  G03G15/00 ,  H04N1/00

CPC分类号： G06K15/1878 ,  G03G15/5041 ,  G03G2215/00059 ,  G03G2215/00063 ,  G03G2215/00067 ,  H04N1/00015 ,  H04N1/00023 ,  H04N1/00031 ,  H04N1/00034 ,  H04N1/00045 ,  H04N1/00063 ,  H04N1/00087 ,  H04N1/60 ,  H04N1/6033 ,  H04N1/6036 ,  H04N1/6038 ,  H04N1/6044 ,  H04N2201/0094

摘要： A color image processing apparatus includes an image forming unit configured to form a color image using recording materials of plural colors, an image processing unit configured to implement plural image processing methods that achieve plural types of pseudo-halftone representations, a color measurement unit configured to perform color measurement of the color image formed by the image forming unit, and a control unit configured to control execution of multi-color calibration in which the color measurement unit performs color measurement of a pattern image including plural multi-color patch images formed using recording materials of plural colors by using a smaller number of image processing methods than plural image processing methods used in single-color calibration for correcting reproduction characteristics of single-color images formed by the image forming unit and in which reproduction characteristics of a multi-color image formed by the image forming unit are corrected using a result of the color measurement.

公开(公告)号：US20170329254A1

公开(公告)日：2017-11-16

申请号：US15591853

申请日：2017-05-10

申请人： KYOCERA Document Solutions Inc.

发明人： Kenichi Hayashi ,  Hiroki Tanaka

IPC分类号： G03G15/06 ,  G03G15/08 ,  G03G15/00

CPC分类号： G03G15/065 ,  G03G15/0808 ,  G03G15/5058 ,  G03G2215/00059

摘要： In an image forming apparatus, a controller (a) determines a bright potential of a photoconductor drum at calibration, (b) adjusts a development bias and thereby determines as an intermediate reference development bias value a value of the development bias so that a toner density based on an output of a reflection-type optical sensor is equal to an intermediate reference density lower than a target density, (c) determines as an intermediate reference effective potential a difference between the intermediate reference development bias value and the bright potential at calibration, and (d) determines a development bias value corresponding to the target density by linear interpolation based on the intermediate reference effective potential and a virtual zero density effective potential. The virtual zero density effective potential is a difference between a development bias and a bright potential of the photoconductor drum when a transmission density is virtually zero.

公开(公告)号：US20170285552A1

公开(公告)日：2017-10-05

申请号：US15440362

申请日：2017-02-23

申请人： KONICA MINOLTA, INC.

发明人： Yohei NAKADE

IPC分类号： G03G15/00

CPC分类号： G03G15/70 ,  G03G15/1605 ,  G03G15/5004 ,  G03G15/5033 ,  G03G15/5041 ,  G03G15/5054 ,  G03G15/5058 ,  G03G15/55 ,  G03G15/553 ,  G03G15/75 ,  G03G15/757 ,  G03G21/145 ,  G03G2215/00029 ,  G03G2215/00033 ,  G03G2215/00037 ,  G03G2215/00042 ,  G03G2215/00059

摘要： An image forming apparatus includes: an image forming unit configured to form an image pattern on a medium, a predetermined image repeatedly appearing in a first cycle in a sub scanning direction in the image pattern; a density detector configured to optically detect a density of the image pattern in the sub scanning direction; a cyclic image detector configured to detect a feature image having a second cycle corresponding to the first cycle in accordance with a result of the detection; and a state determining unit configured to determine whether a cycle depending on an outer circumference of a rotary member included in the image forming apparatus corresponds to the second cycle when the feature image is detected by the cyclic image detector, and determine that a state of the rotary member has deteriorated when the cycle depending on the outer circumference is determined to correspond to the second cycle.

公开(公告)号：US20170199480A1

公开(公告)日：2017-07-13

申请号：US15296542

申请日：2016-10-18

申请人： Mutsuki MORINAGA ,  Tadashi KASAI ,  Jun HITOSUGI ,  Takamasa OZEKI ,  Makoto YASUDA ,  Kunio HASEGAWA ,  Emiko SHIRAISHI ,  Hitoshi YAMAMOTO ,  Masahiko SHAKUTO ,  Tetsuya MUTO ,  Keiko KAJIMURA ,  Tomoya OHSUGI

发明人： Mutsuki MORINAGA ,  Tadashi KASAI ,  Jun HITOSUGI ,  Takamasa OZEKI ,  Makoto YASUDA ,  Kunio HASEGAWA ,  Emiko SHIRAISHI ,  Hitoshi YAMAMOTO ,  Masahiko SHAKUTO ,  Tetsuya MUTO ,  Keiko KAJIMURA ,  Tomoya OHSUGI

IPC分类号： G03G15/08

CPC分类号： G03G15/0131 ,  G03G15/0189 ,  G03G15/0849 ,  G03G15/5058 ,  G03G15/55 ,  G03G15/556 ,  G03G2215/00059 ,  G03G2215/0164

摘要： An image forming apparatus includes a toner pattern bearer to bear a first toner pattern having a first image area rate and a second toner pattern having a second image area rate different from the first image area rate. A toner adhesion amount detector detects a toner adhesion amount of toner of each of the first toner pattern and the second toner pattern. A toner degradation rate calculator calculates a first deviation in the toner adhesion amount of the first toner pattern and a second deviation in the toner adhesion amount of the second toner pattern based on the toner adhesion amount detected by the toner adhesion amount detector. The toner degradation rate calculator compares the first deviation with the second deviation and calculates a toner degradation rate based on a comparison result.

公开(公告)号：US09696664B2

公开(公告)日：2017-07-04

申请号：US15149391

申请日：2016-05-09

申请人： Konica Minolta, Inc.

发明人： Shota Sakurai ,  Tatsuya Furuta ,  Natsuko Kawai ,  Tetsuya Ishikawa ,  Tomohiro Kawasaki

IPC分类号： G03G15/16 ,  G03G15/00

CPC分类号： G03G15/161 ,  G03G15/5058 ,  G03G2215/00059 ,  G03G2221/001

摘要： An image forming apparatus includes a second cleaning section, an image formation control section configured to control an image forming section to form a high-coverage patch on a transfer belt, and a cleaning control section configured to control the second cleaning section to perform cleaning of the patch on the transfer belt.