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1. 发明授权

US10003714B2 Image forming apparatus, control method, and non-transitory recording medium which adjusts timing of print enable signal according to atmospheric pressure 有权
公开(公告)号：US10003714B2
公开(公告)日：2018-06-19
申请号：US15690089
申请日：2017-08-29
申请人： KONICA MINOLTA, INC.
发明人： Tatsuya Eguchi , Isao Watanabe , Takeshi Ishida , Hiroaki Takatsu , Taku Kimura , Atomu Nakashima
IPC分类号： G03G15/01 , H04N1/00 , G06K15/00 , H04N1/113 , G06K15/12 , G03G15/04
CPC分类号： H04N1/113 , G03G15/04072 , G03G15/043 , G03G15/50 , G03G21/20 , G03G2215/0404 , G06K15/1204
摘要： An image forming apparatus includes an acquiring unit configured to acquire atmosphere pressure in the installation place of the image forming apparatus, photoconductors, light sources configured to radiate laser light, and a polygon mirror configured to be rotatable. The polygon mirror exposes the photoconductors by reflecting the laser light toward the photoconductors while rotating. The image forming apparatus further includes a control device configured to control rotation of the polygon mirror. The control device outputs an enable signal for allowing the image forming apparatus to perform printing, if rotation of the polygon mirror is stabilized after start of the rotation, and advances the timing of outputting the enable signal as the atmosphere pressure increases.

2. 发明申请

US20180307148A1 ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND ELECTROPHOTOGRAPHIC IMAGE FORMING DEVICE 审中-公开
公开(公告)号：US20180307148A1
公开(公告)日：2018-10-25
申请号：US15948032
申请日：2018-04-09
申请人： Konica Minolta, Inc.
发明人： Takeshi Ishida , Seisuke Maeda , Kazuhiro Kuramochi
IPC分类号： G03G5/147 , G03G5/05
CPC分类号： G03G5/147 , G03G5/0564 , G03G5/14704 , G03G5/14726 , G03G5/14734 , G03G5/14791
摘要： Provided is an electrophotographic photoreceptor obtained by laminating a photosensitive layer and a surface protective layer in this order on a conductive support, wherein the surface protective layer contains conductive fine particles and crosslinkable organic fine particles, and either the conductive fine particles or the crosslinkable organic fine particles have been subjected to surface modification with a fluoroalkyl (meth)acrylate/(meth)acrylic acid copolymer.

3. 发明授权

US09372467B2 Image forming apparatus having photoreceptor with lubricant supplying part and lubricant removal part 有权
标题翻译：具有感光体的图像形成装置，具有润滑剂供给部和润滑剂除去部
公开(公告)号：US09372467B2
公开(公告)日：2016-06-21
申请号：US14618570
申请日：2015-02-10
申请人： Konica Minolta, Inc.
发明人： Takeshi Ishida , Masahiko Kurachi , Hokuto Hatano , Kazunori Kurimoto
IPC分类号： G03G21/00
CPC分类号： G03G21/0094 , G03G21/0076
摘要： To provide an image forming apparatus that suppresses occurrence of image deletion in a high-temperature and high-humidity environment and provides good toner cleanability. Provided is an image forming apparatus including a photoreceptor having a protective layer containing a crosslinked polymer as a surface layer, wherein, along with the rotation direction of the photoreceptor in the external area of the rotating photoreceptor, a lubricant supplying part that supplies lubricant onto the surface of the photoreceptor, a charging part that charges the surface of the photoreceptor by a charging roller, an exposure part that exposes the charged photoreceptor by the charging part, a developing part that supplies toner to the exposed photoreceptor by the exposure part to form a toner image, a transfer part that transfers the toner image formed on the photoreceptor, a cleaning part that removes the toner remained on the surface of the photoreceptor and a lubricant removing part that removes the lubricant adhered on the surface of the photoreceptor are sequentially disposed.
摘要翻译：提供一种抑制高温高湿环境下的图像缺失的发生的图像形成装置，并提供良好的调色剂清洁性。本发明提供一种图像形成装置，其包括具有包含交联聚合物作为表面层的保护层的感光体，其中，与旋转感光体的外部区域中的感光体的旋转方向一起，将润滑剂供给部件感光体的表面，通过充电辊对感光体的表面充电的充电部，通过充电部暴露带电感光体的曝光部，通过曝光部向曝光的感光体供给调色剂的显影部，调色剂图像，传送形成在感光体上的调色剂图像的转印部分，去除保留在感光体表面上的调色剂的清洁部分和去除附着在感光体表面上的润滑剂的润滑剂去除部分。

4. 发明授权

US10488808B2 Image forming apparatus having an irradiator irradiating a photoconductor 有权
公开(公告)号：US10488808B2
公开(公告)日：2019-11-26
申请号：US16235450
申请日：2018-12-28
申请人： Konica Minolta, Inc.
发明人： Takeshi Ishida , Kazuhiro Kuramochi , Seisuke Maeda
IPC分类号： G03G15/16 , G03G21/08 , G03G15/01
CPC分类号： G03G21/08 , G03G15/0189 , G03G15/169
摘要： An image forming apparatus includes: a transferer that transfers a toner image formed on a surface of a photo-conductor onto an image carrier; and an irradiator that irradiates the surface of the photo-conductor before transfer with light such that a potential of an image area where the toner image has been formed and a potential of a non-image area where the toner image has not been formed in the photo-conductor before transfer satisfy formula (1):

0≤|Va|−|Vb|≤200 [V] (1)

where |Va| represents the potential of the image area after the surface of the photo-conductor before transfer is irradiated with light, and |Vb| represents the potential of the non-image area after the surface of the photo-conductor before transfer is irradiated with light.

5. 发明授权

US10112314B2 Post-processing apparatus and image forming apparatus for correcting deviation of punching position 有权
公开(公告)号：US10112314B2
公开(公告)日：2018-10-30
申请号：US15456120
申请日：2017-03-10
申请人： Konica Minolta, Inc.
发明人： Hiroaki Takatsu , Tatsuya Eguchi , Takeshi Ishida , Isao Watanabe , Taku Kimura
IPC分类号： B26D5/00 , B26D5/32 , B26F1/02 , B41J11/00
摘要： A post-processing apparatus includes: a moving mechanism configured to move a punching apparatus in a width direction orthogonal to a transportation direction of a sheet; and a sensor configured to optically detect a mark formed on the sheet and indicating a position to be punched. The mark is configured such that an interval in the transportation direction between a plurality of feature portions extending in the width direction is configured to be changed depending on the width direction. The moving mechanism is configured to determine a position of the punching apparatus in the width direction based on a difference between respective timings of detection of the plurality of feature portions.

6. 发明授权

US09971296B2 Image forming apparatus 有权
公开(公告)号：US09971296B2
公开(公告)日：2018-05-15
申请号：US15099061
申请日：2016-04-14
申请人： Konica Minolta, Inc.
发明人： Takeshi Ishida , Hokuto Hatano
IPC分类号： G03G21/00
CPC分类号： G03G21/0094
摘要： An image forming apparatus includes a photoreceptor, a charging unit, an exposing unit, a developing unit, a transfer unit, a lubricant supply unit, a cleaning unit and a lubricant removal unit. The lubricant supply unit supplies a lubricant to a surface of the photoreceptor and is disposed at a point which is an upstream side of the cleaning unit and a downstream side of the developing unit in a rotation direction of the photoreceptor. The lubricant removal unit removes the lubricant from the surface of the photoreceptor and is disposed at a point which is the downstream side of the cleaning unit and the upstream side of the developing unit in the rotation direction of the photoreceptor.

7. 发明申请

US20170259447A1 POST-PROCESSING APPARATUS AND IMAGE FORMING APPARATUS FOR CORRECTING DEVIATION OF PUNCHING POSITION 审中-公开
公开(公告)号：US20170259447A1
公开(公告)日：2017-09-14
申请号：US15456120
申请日：2017-03-10
申请人： Konica Minolta, Inc.
发明人： Hiroaki Takatsu , Tatsuya Eguchi , Takeshi Ishida , Isao Watanabe , Taku Kimura
IPC分类号： B26D5/00 , B41J11/00 , B26F1/02
CPC分类号： B26D5/007 , B26D5/32 , B26F1/02 , B41J11/0015
摘要： A post-processing apparatus includes: a moving mechanism configured to move a punching apparatus in a width direction orthogonal to a transportation direction of a sheet; and a sensor configured to optically detect a mark formed on the sheet and indicating a position to be punched. The mark is configured such that an interval in the transportation direction between a plurality of feature portions extending in the width direction is configured to be changed depending on the width direction. The moving mechanism is configured to determine a position of the punching apparatus in the width direction based on a difference between respective timings of detection of the plurality of feature portions.

8. 发明授权

US09503003B2 Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：US09503003B2
公开(公告)日：2016-11-22
申请号：US14332987
申请日：2014-07-16
申请人： KONICA MINOLTA, INC.
发明人： Takahiro Tsujimoto , Hideki Nakamura , Takeshi Ishida , Naoto Sugaya , Akimasa Ishikawa
IPC分类号： H02P8/00 , G05B5/00 , H02P8/12 , G03G15/00 , G03G15/06
CPC分类号： H02P8/12 , G03G15/06 , G03G15/5008 , G03G15/6529
摘要： An image forming apparatus drives and rotates at least one of a photosensitive drum and a transport roller with use of a stepping motor in a multi-phase excitation mode. The image forming apparatus includes: a constant-voltage control unit controlling the stepping motor by applying a constant voltage for each phase; a constant-current control unit controlling the stepping motor by regulating an amount of current for each phase by a chopping control; a measuring unit measuring a chopping count of each phase on a per-step basis; a chopping count determination unit determining whether the chopping count of each phase is less than or equal to a predetermined count; and a control switching unit causing the constant-voltage control unit to control the stepping motor when the chopping count determination unit determines affirmatively, and causing the constant-current control unit to control the stepping motor when the chopping count determination unit determines negatively.
摘要翻译：图像形成装置利用多相励磁模式中的步进电机来驱动和旋转感光鼓和输送辊中的至少一个。图像形成装置包括：恒压控制单元，通过对各相施加恒定电压来控制步进电动机; 恒流控制单元，其通过斩波控制来调节各相的电流量来控制所述步进电动机; 测量单元，测量每个阶段的每个阶段的切碎计数; 斩波计数确定单元，确定每相的斩波计数是否小于或等于预定计数; 以及控制切换单元，其使得所述恒压控制单元在所述切断计数确定单元肯定地确定时控制所述步进电机，并且当所述切断计数确定单元判定为否定时，使所述恒流控制单元控制所述步进电机。

9. 发明授权

US11415909B2 Image forming apparatus and method for controlling the same 有权
公开(公告)号：US11415909B2
公开(公告)日：2022-08-16
申请号：US17372914
申请日：2021-07-12
申请人： KONICA MINOLTA, INC.
发明人： Tatsuya Eguchi , Hiroshi Eguchi , Takashi Watanabe , Takeshi Ishida
IPC分类号： G03G15/043
摘要： An image forming apparatus includes: a photoreceptor that forms a toner image; a light emission element that exposes the photoreceptor; at least one light emission controller that controls light emission of the light emission element; and a hardware processor that transmits a signal including a control parameter for controlling the light emission element with respect to the light emission controller, wherein the light emission controller stops light emission control over the light emission element according to communication that receives the signal including the control parameter from the hardware processor.

10. 发明授权

US10324387B2 Electrophotographic photoreceptor and electrophotographic image forming device 有权
公开(公告)号：US10324387B2
公开(公告)日：2019-06-18
申请号：US15948032
申请日：2018-04-09
申请人： Konica Minolta, Inc.
发明人： Takeshi Ishida , Seisuke Maeda , Kazuhiro Kuramochi
IPC分类号： G03G5/147
摘要： Provided is an electrophotographic photoreceptor obtained by laminating a photosensitive layer and a surface protective layer in this order on a conductive support, wherein the surface protective layer contains conductive fine particles and crosslinkable organic fine particles, and either the conductive fine particles or the crosslinkable organic fine particles have been subjected to surface modification with a fluoroalkyl (meth)acrylate/(meth)acrylic acid copolymer.

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