公开(公告)号：US09448497B2

公开(公告)日：2016-09-20

申请号：US14145107

申请日：2013-12-31

Applicant: Lexmark International, Inc.

Inventor： Mark Thomas Bellino ,  Gerald Hugh Ciecior ,  Douglas Jeffrey Harris ,  Weimei Luo ,  Brian David Munson ,  Dat Quoc Nguyen ,  Scott Daniel Reeves ,  Tanya Yvonne Thames

IPC: G03G5/05 ,  G03G5/147

CPC classification number: G03G5/14734 ,  G03G5/0525 ,  G03G5/0546 ,  G03G5/147 ,  G03G5/14713 ,  G03G5/14717 ,  G03G5/14721 ,  G03G5/14791 ,  G03G5/14795

Abstract: An overcoat layer and method to make an overcoated photoconductor drum of an electrophotographic image forming device using irradiation such as with electron beam (EB) or ultraviolet (UV) light is provided. The photoconductor drum is then cured using EB dose of between 10 and 100 kiloGrays (kGy), preferably between 20 and 40 kGys or UV irradiation with an exposure of between 0.1 and 2 J/cm2. The unique overcoat layer of the present invention is formed having a biphasic morphology comprised of a highly cured crosslinked phase and a second phase enriched in uncured material. The desired amount of uncured uncrosslinked material found in the second phase of the biphasic structure, is between 2-70 wt % range, with particularly good combination of long-life and electrical performance when present at the 5-50 wt % level, and the best performance at the 15-40 wt % level. The biphasic morphology of the overcoat layer using the method of the present invention gives rise to the good wear rates while allowing rapid transport of the electrical charge and thus fast discharge properties of the photoconductor drum.

Abstract translation: 提供了使用诸如电子束（EB）或紫外（UV）光等照射的电子照相成像装置的外涂层感光鼓的外涂层和方法。 然后使用10至100千格（kGy），优选20至40kGys之间的EB剂量或0.1至2J / cm 2的曝光的UV照射来固化感光鼓。 本发明的独特外涂层形成为具有由高度固化的交联相和富含未固化材料的第二相组成的双相形态。 在双相结构的第二相中发现的未固化未交联材料的所需量为2-70重量％范围，当以5-50重量％的水平存在时，寿命长和电性能特别好的组合， 最佳性能在15-40重量级。 使用本发明的方法的外涂层的双相形态产生良好的磨损率，同时允许电荷的快速传输并因此感光鼓的快速放电性能。

公开(公告)号：US20150099225A1

公开(公告)日：2015-04-09

申请号：US14569948

申请日：2014-12-15

Applicant: Lexmark International, Inc.

Inventor： Mark Thomas Bellino ,  David Glen Black ,  Weimei Luo ,  Scott Daniel Reeves

IPC: G03G5/06

CPC classification number: G03G5/0618 ,  G03G5/14734 ,  G03G5/14769 ,  G03G5/14786 ,  G03G5/14791

Abstract: A method of preparing a photoconductor drum having an overcoat layer is provided. The photoconductor drum is used in an electrophotographic image forming device. The photoconductor drum is prepared from a curable composition including a urethane resin having at least six radical polymerizable functional groups and a charge transport molecule having at least one radical polymerizable functional group. The amount of the urethane resin having at least six radical polymerizable functional groups in the curable composition is about 35 percent to about 65 percent by weight. The amount of the charge transport molecules having at least one radical polymerizable functional group in the curable composition is about 35 percent to about 65 percent by weight. This overcoat layer improves wear resistance of the photoconductor drum without negatively altering the electrophotographic properties, thus protecting the photoconductor drum from damage and extending its useful life.

Abstract translation: 提供了制备具有外涂层的感光鼓的方法。 感光鼓用于电子照相成像装置中。 感光鼓由包含具有至少六个可自由基聚合的官能团的聚氨酯树脂和具有至少一个可自由基聚合的官能团的电荷传输分子的可固化组合物制备。 在可固化组合物中具有至少六个可自由基聚合的官能团的聚氨酯树脂的量为约35重量％至约65重量％。 在可固化组合物中具有至少一个可自由基聚合的官能团的电荷传输分子的量为约35重量％至约65重量％。 该外涂层提高了感光鼓的耐磨性，而不会不利地改变电子照相性能，从而保护感光鼓免受损坏并延长其使用寿命。

公开(公告)号：US11947282B2

公开(公告)日：2024-04-02

申请号：US17701758

申请日：2022-03-23

Applicant: LEXMARK INTERNATIONAL, INC.

Inventor： Alexander Lloyd Chapman ,  Clare Cabahug Maxino ,  Neilson Gutay Navarrete ,  Michael Todd Phillips ,  Scott Daniel Reeves ,  Daniel Lee Thomas

IPC: G03G15/08 ,  G03G15/00 ,  G03G21/10 ,  G03G21/12

CPC classification number: G03G15/0868 ,  G03G15/0848 ,  G03G15/0856 ,  G03G15/0858 ,  G03G15/086 ,  G03G15/556 ,  G03G21/10 ,  G03G21/12 ,  G03G2215/00637 ,  G03G2215/00645 ,  G03G2215/0154 ,  G03G2215/0888 ,  G03G2221/0021

Abstract: A system for an electrophotographic image forming device includes a toner container having a reservoir for storing toner and an impact member configured to selectively impart an impulse force on the toner container to cause vibration of the toner container. A sensor is configured to sense the vibration of the toner container upon the impact member imparting the impulse force on the toner container. Processing circuitry in communication with the sensor is configured to determine an estimate of an amount of toner in the reservoir based on the sensed vibration of the toner container.

公开(公告)号：US20150111150A1

公开(公告)日：2015-04-23

申请号：US14580796

申请日：2014-12-23

Applicant: Lexmark International, Inc.

Inventor： Scott Daniel Reeves ,  David Glen Black

IPC: G03G5/147

CPC classification number: G03G5/14734 ,  G03G5/14769 ,  G03G5/14786 ,  G03G5/14791

Abstract: An overcoat layer for an organic photoconductor drum of an electrophotographic image forming device is provided. The overcoat layer is prepared from a curable composition including a urethane resin having at least six radical polymerizable functional groups. The at least six radical polymerizable functional groups may include acrylate group, methacrylate group, styrenic group, allylic group, vinylic group, glycidyl ether group, epoxy group, or combinations thereof. This overcoat layer has an improved wear resistance, thus protecting the organic photoconductor drum from damage and extending its service life.

Abstract translation: 提供了一种用于电子照相图像形成装置的有机感光鼓的外涂层。 外涂层由包含具有至少六个可自由基聚合的官能团的聚氨酯树脂的可固化组合物制备。 所述至少六个自由基聚合性官能团可以包括丙烯酸酯基，甲基丙烯酸酯基，苯乙烯基，烯丙基，乙烯基，缩水甘油醚基，环氧基或其组合。 该外涂层具有改善的耐磨性，从而保护有机感光鼓免受损坏并延长其使用寿命。

公开(公告)号：US09417538B2

公开(公告)日：2016-08-16

申请号：US14569948

申请日：2014-12-15

Applicant: Lexmark International, Inc.

Inventor： Mark Thomas Bellino ,  David Glen Black ,  Weimei Luo ,  Scott Daniel Reeves

IPC: G03G5/00 ,  G03G5/06 ,  G03G5/147

CPC classification number: G03G5/0618 ,  G03G5/14734 ,  G03G5/14769 ,  G03G5/14786 ,  G03G5/14791

Abstract: A method of preparing a photoconductor drum having an overcoat layer is provided. The photoconductor drum is used in an electrophotographic image forming device. The photoconductor drum is prepared from a curable composition including a urethane resin having at least six radical polymerizable functional groups and a charge transport molecule having at least one radical polymerizable functional group. The amount of the urethane resin having at least six radical polymerizable functional groups in the curable composition is about 35 percent to about 65 percent by weight. The amount of the charge transport molecules having at least one radical polymerizable functional group in the curable composition is about 35 percent to about 65 percent by weight. This overcoat layer improves wear resistance of the photoconductor drum without negatively altering the electrophotographic properties, thus protecting the photoconductor drum from damage and extending its useful life.

Abstract translation: 提供了制备具有外涂层的感光鼓的方法。 感光鼓用于电子照相成像装置中。 感光鼓由包含具有至少六个可自由基聚合的官能团的聚氨酯树脂和具有至少一个可自由基聚合的官能团的电荷传输分子的可固化组合物制备。 在可固化组合物中具有至少六个可自由基聚合的官能团的聚氨酯树脂的量为约35重量％至约65重量％。 在可固化组合物中具有至少一个可自由基聚合的官能团的电荷传输分子的量为约35重量％至约65重量％。 该外涂层提高了感光鼓的耐磨性，而不会不利地改变电子照相性能，从而保护感光鼓免受损坏并延长其使用寿命。

公开(公告)号：US09417537B2

公开(公告)日：2016-08-16

申请号：US14569929

申请日：2014-12-15

Applicant: Lexmark International, Inc.

Inventor： Mark Thomas Bellino ,  David Glen Black ,  Weimei Luo ,  Scott Daniel Reeves

IPC: G03G5/00 ,  G03G5/06 ,  G03G5/147

CPC classification number: G03G5/0618 ,  G03G5/14734 ,  G03G5/14769 ,  G03G5/14786 ,  G03G5/14791

Abstract: An overcoat layer for an organic photoconductor drum of an electrophotographic image forming device is provided. The overcoat layer is prepared from a curable composition including a urethane resin having at least six radical polymerizable functional groups and a charge transport molecule having at least one radical polymerizable functional group. The amount of the urethane resin having at least six radical polymerizable functional groups in the curable composition is about 35 percent to about 65 percent by weight. The amount of the charge transport molecules having at least one radical polymerizable functional group in the curable composition is about 35 percent to about 65 percent by weight. This overcoat layer improves wear resistance of the organic photoconductor drum without negatively altering the electrophotographic properties, thus protecting the organic photoconductor drum from damage and extending its useful life.

Abstract translation: 提供了一种用于电子照相图像形成装置的有机感光鼓的外涂层。 外涂层由包含具有至少六个可自由基聚合的官能团的聚氨酯树脂和具有至少一个可自由基聚合的官能团的电荷传输分子的可固化组合物制备。 在可固化组合物中具有至少六个可自由基聚合的官能团的聚氨酯树脂的量为约35重量％至约65重量％。 在可固化组合物中具有至少一个可自由基聚合的官能团的电荷传输分子的量为约35重量％至约65重量％。 该外涂层提高了有机感光鼓的耐磨性，而不会不利地改变电子照相性能，从而保护有机感光鼓免受损坏并延长其使用寿命。

公开(公告)号：US20150111138A1

公开(公告)日：2015-04-23

申请号：US14580762

申请日：2014-12-23

Applicant: Lexmark International, Inc.

Inventor： Scott Daniel Reeves ,  David Glen Black

IPC: G03G5/147

CPC classification number: G03G5/14734 ,  G03G5/14769 ,  G03G5/14786 ,  G03G5/14791

Abstract: An overcoat layer for an organic photoconductor drum of an electrophotographic image forming device is provided. The overcoat layer is prepared from a curable composition including a urethane resin having at least six radical polymerizable functional groups. The at least six radical polymerizable functional groups may include acrylate group, methacrylate group, styrenic group, allylic group, vinylic group, glycidyl ether group, epoxy group, or combinations thereof. This overcoat layer has an improved wear resistance, thus protecting the organic photoconductor drum from damage and extending its useful life.

Abstract translation: 提供了一种用于电子照相图像形成装置的有机感光鼓的外涂层。 外涂层由包含具有至少六个可自由基聚合的官能团的聚氨酯树脂的可固化组合物制备。 所述至少六个自由基聚合性官能团可以包括丙烯酸酯基，甲基丙烯酸酯基，苯乙烯基，烯丙基，乙烯基，缩水甘油醚基，环氧基或其组合。 该外涂层具有改善的耐磨性，从而保护有机感光鼓免受损坏并延长其使用寿命。

公开(公告)号：US20150099219A1

公开(公告)日：2015-04-09

申请号：US14569929

申请日：2014-12-15

Applicant: Lexmark International, Inc.

Inventor： Mark Thomas Bellino ,  David Glen Black ,  Weimei Luo ,  Scott Daniel Reeves

IPC: G03G5/06

CPC classification number: G03G5/0618 ,  G03G5/14734 ,  G03G5/14769 ,  G03G5/14786 ,  G03G5/14791

Abstract: An overcoat layer for an organic photoconductor drum of an electrophotographic image forming device is provided. The overcoat layer is prepared from a curable composition including a urethane resin having at least six radical polymerizable functional groups and a charge transport molecule having at least one radical polymerizable functional group. The amount of the urethane resin having at least six radical polymerizable functional groups in the curable composition is about 35 percent to about 65 percent by weight. The amount of the charge transport molecules having at least one radical polymerizable functional group in the curable composition is about 35 percent to about 65 percent by weight. This overcoat layer improves wear resistance of the organic photoconductor drum without negatively altering the electrophotographic properties, thus protecting the organic photoconductor drum from damage and extending its useful life.

Abstract translation: 提供了一种用于电子照相图像形成装置的有机感光鼓的外涂层。 外涂层由包含具有至少六个可自由基聚合的官能团的聚氨酯树脂和具有至少一个可自由基聚合的官能团的电荷传输分子的可固化组合物制备。 在可固化组合物中具有至少六个可自由基聚合的官能团的聚氨酯树脂的量为约35重量％至约65重量％。 在可固化组合物中具有至少一个可自由基聚合的官能团的电荷传输分子的量为约35重量％至约65重量％。 该外涂层提高了有机感光鼓的耐磨性，而不会不利地改变电子照相性能，从而保护有机感光鼓免受损坏并延长其使用寿命。

公开(公告)号：US09513591B2

公开(公告)日：2016-12-06

申请号：US14960643

申请日：2015-12-07

Applicant: LEXMARK INTERNATIONAL, INC.

Inventor： David Glenn Black ,  Mark Thomas Bellino ,  James Alan Hartman ,  Weimei Luo ,  Scott Daniel Reeves ,  Tanya Yvonne Thames

IPC: G03G5/147 ,  G03G15/00 ,  C09D5/24 ,  G03G5/05 ,  G03G5/06 ,  G03G5/07 ,  G03G5/04

CPC classification number: G03G15/751 ,  C09D5/24 ,  G03G5/04 ,  G03G5/0575 ,  G03G5/0614 ,  G03G5/071 ,  G03G5/076 ,  G03G5/1473 ,  G03G5/14769 ,  G03G5/14791

Abstract: An improved overcoat layer for an organic photoconductor drum of an electrophotographic image forming device is provided. The overcoat layer is prepared from a curable composition including a triphenylamine charge transport containing two ethyl acrylate functional groups and a urethane resin containing six radical polymerizable functional groups. The amount of the triphenylamine charge transport containing two ethyl acrylate functional groups in the curable composition is about 20 to about 80 percent by weight. The amount of the urethane resin containing six radical polymerizable functional groups in the curable composition is about 20 to about 80 percent by weight. This overcoat layer improves wear resistance of the organic photoconductor drum without negatively altering the electrophotographic properties, thus protecting the organic photoconductor drum from damage and ultimately providing a photoconductor with a longer useful life when compared to other organic photoconductors commercially available.

Abstract translation: 提供了一种用于电子照相成像装置的有机感光鼓的改进的外涂层。 外涂层由包含含有两个丙烯酸乙酯官能团的三苯胺电荷转移的可固化组合物和含有六个可自由基聚合的官能团的聚氨酯树脂制备。 在可固化组合物中含有两个丙烯酸乙酯官能团的三苯胺电荷转运量为约20至约80重量％。 在可固化组合物中含有六个可自由基聚合的官能团的聚氨酯树脂的量为约20至约80重量％。 该外涂层提高了有机感光鼓的耐磨性，而不会不利地改变电子照相特性，从而保护有机感光鼓免受损坏，并且与可商购的其它有机光电导体相比最终提供具有更长使用寿命的光电导体。

公开(公告)号：US09360822B2

公开(公告)日：2016-06-07

申请号：US14105436

申请日：2013-12-13

Applicant: LEXMARK INTERNATIONAL, INC.

Inventor： David Glenn Black ,  Mark Thomas Bellino ,  James Alan Hartman ,  Weimei Luo ,  Scott Daniel Reeves ,  Tanya Yvonne Thames

IPC: G03G5/14 ,  G03G15/00 ,  C09D5/24 ,  G03G5/05 ,  G03G5/06 ,  G03G5/07 ,  G03G5/147

CPC classification number: G03G15/751 ,  C09D5/24 ,  G03G5/04 ,  G03G5/0575 ,  G03G5/0614 ,  G03G5/071 ,  G03G5/076 ,  G03G5/1473 ,  G03G5/14769 ,  G03G5/14791

Abstract: An improved overcoat layer for an organic photoconductor drum of an electrophotographic image forming device is provided. The overcoat layer is prepared from a curable composition including a triphenylamine charge transport containing two ethyl acrylate functional groups and a urethane resin containing six radical polymerizable functional groups. The amount of the triphenylamine charge transport containing two ethyl acrylate functional groups in the curable composition is about 20 to about 80 percent by weight. The amount of the urethane resin containing six radical polymerizable functional groups in the curable composition is about 20 to about 80 percent by weight. This overcoat layer improves wear resistance of the organic photoconductor drum without negatively altering the electrophotographic properties, thus protecting the organic photoconductor drum from damage and ultimately providing a photoconductor with a longer useful life when compared to other organic photoconductors commercially available.

Abstract translation: 提供了一种用于电子照相成像装置的有机感光鼓的改进的外涂层。 外涂层由包含含有两个丙烯酸乙酯官能团的三苯胺电荷转移的可固化组合物和含有六个可自由基聚合的官能团的聚氨酯树脂制备。 在可固化组合物中含有两个丙烯酸乙酯官能团的三苯胺电荷转运量为约20至约80重量％。 在可固化组合物中含有六个可自由基聚合的官能团的聚氨酯树脂的量为约20至约80重量％。 该外涂层提高了有机感光鼓的耐磨性，而不会不利地改变电子照相特性，从而保护有机感光鼓免受损坏，并且与可商购的其它有机光电导体相比最终提供具有更长使用寿命的光电导体。