JP2014191115A5 - - Google Patents
Download PDFInfo
- Publication number
- JP2014191115A5 JP2014191115A5 JP2013065196A JP2013065196A JP2014191115A5 JP 2014191115 A5 JP2014191115 A5 JP 2014191115A5 JP 2013065196 A JP2013065196 A JP 2013065196A JP 2013065196 A JP2013065196 A JP 2013065196A JP 2014191115 A5 JP2014191115 A5 JP 2014191115A5
- Authority
- JP
- Japan
- Prior art keywords
- photosensitive member
- electrophotographic photosensitive
- cleaning
- hard segment
- toner image
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 claims description 17
- 229920001971 elastomer Polymers 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- 238000000113 differential scanning calorimetry Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000002093 peripheral Effects 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims 4
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
Description
上記目的を達成するため、以下の発明が提供される。
請求項１に係る発明は、
円筒状の導電性支持体および該導電性支持体の外周面上に感光層を備え、前記感光層の最外表面を構成する層が樹脂を含有し、且つ前記感光層の最外表面を構成する層が軸方向において厚さに傾斜を有し軸方向の一端と他端との平均膜厚の差が１．７μｍ以上である電子写真感光体と、
前記電子写真感光体の表面を帯電する帯電手段と、
帯電した前記電子写真感光体の表面に静電荷像を形成する静電荷像形成手段と、
前記電子写真感光体の表面に形成された静電荷像をトナーによりトナー像として現像する現像手段と、
前記電子写真感光体の表面に形成されたトナー像を記録媒体の表面に転写する転写手段と、
少なくとも前記電子写真感光体と接触する部分が、ポリウレタンゴムを含有し且つ示差走査熱量測定による吸熱ピークトップ温度を１８０℃以上２２０℃以下の範囲に持つ部材で構成されるクリーニングブレードを備え、該クリーニングブレードを前記転写手段によって前記トナー像が転写された後の前記電子写真感光体の表面に接触させてクリーニングするクリーニング手段と、
を有する画像形成装置である。
In order to achieve the above object, the following invention is provided.
The invention according to claim 1
A cylindrical conductive support and a photosensitive layer on the outer peripheral surface of the conductive support, the layer constituting the outermost surface of the photosensitive layer contains a resin, and constitutes the outermost surface of the photosensitive layer An electrophotographic photosensitive member having a thickness gradient in the axial direction and a difference in average film thickness between one end and the other end in the axial direction of 1.7 μm or more;
Charging means for charging the surface of the electrophotographic photosensitive member;
An electrostatic charge image forming means for forming an electrostatic charge image on the surface of the charged electrophotographic photosensitive member;
A developing means for developing as a toner image an electrostatic image formed on the surface of the electrophotographic photosensitive member with toner,
Transfer means for transferring the toner image formed on the surface of the electrophotographic photoreceptor to the surface of the recording medium;
At least a portion in contact with the electrophotographic photosensitive member is provided with a cleaning blade comprising a member containing polyurethane rubber and having an endothermic peak top temperature in a range of 180 ° C. or higher and 220 ° C. or lower by differential scanning calorimetry. Cleaning means for cleaning the blade by contacting the surface of the electrophotographic photosensitive member after the toner image is transferred by the transfer means;
An image forming apparatus having
本実施形態に係る画像形成装置は、電子写真感光体と、前記電子写真感光体の表面を帯電する帯電手段と、帯電した前記電子写真感光体の表面に静電荷像を形成する静電荷像形成手段と、前記電子写真感光体の表面に形成された静電荷像をトナーによりトナー像として現像する現像手段と、前記電子写真感光体の表面に形成されたトナー像を記録媒体の表面に転写する転写手段と、クリーニングブレードを前記転写手段によって前記トナー像が転写された後の前記電子写真感光体の表面に接触させてクリーニングするクリーニング手段と、を有する。
また、本実施形態に係るプロセスカートリッジは、表面にトナー像が形成され且つ該トナー像を記録媒体上に転写する電子写真感光体と、クリーニングブレードを前記記録媒体に前記トナー像が転写された後の前記電子写真感光体の表面に接触させてクリーニングするクリーニング手段と、を備え、画像形成装置に対して脱着自在である。
The image forming apparatus according to the present embodiment includes an electrophotographic photosensitive member, a charging unit that charges the surface of the electrophotographic photosensitive member, and an electrostatic charge image formation that forms an electrostatic charge image on the charged surface of the electrophotographic photosensitive member. Means, developing means for developing the electrostatic image formed on the surface of the electrophotographic photosensitive member as a toner image with toner, and transferring the toner image formed on the surface of the electrophotographic photosensitive member to the surface of the recording medium. A transfer unit; and a cleaning unit configured to bring a cleaning blade into contact with the surface of the electrophotographic photosensitive member after the toner image has been transferred by the transfer unit and to perform cleaning.
In addition, the process cartridge according to the present embodiment has a toner image formed on the surface and an electrophotographic photosensitive member for transferring the toner image onto a recording medium, and a cleaning blade after the toner image is transferred to the recording medium. And a cleaning means for cleaning in contact with the surface of the electrophotographic photosensitive member, and is detachable from the image forming apparatus.
Claims (4)
前記電子写真感光体の表面を帯電する帯電手段と、
帯電した前記電子写真感光体の表面に静電荷像を形成する静電荷像形成手段と、
前記電子写真感光体の表面に形成された静電荷像をトナーによりトナー像として現像する現像手段と、
前記電子写真感光体の表面に形成されたトナー像を記録媒体の表面に転写する転写手段と、
少なくとも前記電子写真感光体と接触する部分が、ポリウレタンゴムを含有し且つ示差走査熱量測定による吸熱ピークトップ温度を１８０℃以上２２０℃以下の範囲に持つ部材で構成されるクリーニングブレードを備え、該クリーニングブレードを前記転写手段によって前記トナー像が転写された後の前記電子写真感光体の表面に接触させてクリーニングするクリーニング手段と、
を有する画像形成装置。 A cylindrical conductive support and a photosensitive layer on the outer peripheral surface of the conductive support, the layer constituting the outermost surface of the photosensitive layer contains a resin, and constitutes the outermost surface of the photosensitive layer An electrophotographic photosensitive member having a thickness gradient in the axial direction and a difference in average film thickness between one end and the other end in the axial direction of 1.7 μm or more;
Charging means for charging the surface of the electrophotographic photosensitive member;
An electrostatic charge image forming means for forming an electrostatic charge image on the surface of the charged electrophotographic photosensitive member;
A developing means for developing as a toner image an electrostatic image formed on the surface of the electrophotographic photosensitive member with toner,
Transfer means for transferring the toner image formed on the surface of the electrophotographic photoreceptor to the surface of the recording medium;
At least a portion in contact with the electrophotographic photosensitive member is provided with a cleaning blade comprising a member containing polyurethane rubber and having an endothermic peak top temperature in a range of 180 ° C. or higher and 220 ° C. or lower by differential scanning calorimetry. Cleaning means for cleaning the blade by contacting the surface of the electrophotographic photosensitive member after the toner image is transferred by the transfer means;
An image forming apparatus.
少なくとも前記電子写真感光体と接触する部分が、ポリウレタンゴムを含有し且つ示差走査熱量測定による吸熱ピークトップ温度を１８０℃以上２２０℃以下の範囲に持つ部材で構成されるクリーニングブレードを備え、該クリーニングブレードを前記記録媒体に前記トナー像が転写された後の前記電子写真感光体の表面に接触させてクリーニングするクリーニング手段と、
を備え、画像形成装置に対して脱着自在であるプロセスカートリッジ。 A cylindrical conductive support and a photosensitive layer on the outer peripheral surface of the conductive support, the layer constituting the outermost surface of the photosensitive layer contains a resin, and constitutes the outermost surface of the photosensitive layer The thickness of the layer is inclined in the axial direction, the difference in average film thickness between one end and the other end in the axial direction is 1.7 μm or more, and a toner image is formed on the surface. An electrophotographic photosensitive member to be transferred;
At least a portion in contact with the electrophotographic photosensitive member is provided with a cleaning blade comprising a member containing polyurethane rubber and having an endothermic peak top temperature in a range of 180 ° C. or higher and 220 ° C. or lower by differential scanning calorimetry. Cleaning means for cleaning by bringing a blade into contact with the surface of the electrophotographic photosensitive member after the toner image is transferred to the recording medium;
And a process cartridge that is detachable from the image forming apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013065196A JP6036471B2 (en) | 2013-03-26 | 2013-03-26 | Image forming apparatus and process cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013065196A JP6036471B2 (en) | 2013-03-26 | 2013-03-26 | Image forming apparatus and process cartridge |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2014191115A JP2014191115A (en) | 2014-10-06 |
| JP2014191115A5 true JP2014191115A5 (en) | 2015-07-30 |
| JP6036471B2 JP6036471B2 (en) | 2016-11-30 |
Family
ID=51837416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013065196A Active JP6036471B2 (en) | 2013-03-26 | 2013-03-26 | Image forming apparatus and process cartridge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6036471B2 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6261088A (en) * | 1985-09-11 | 1987-03-17 | Toyo Tire & Rubber Co Ltd | Cleaning blade for photosensitive body of electrophotographic copying machine |
| JP4659229B2 (en) * | 2001-02-08 | 2011-03-30 | 株式会社イノアックコーポレーション | Thermoplastic polyurethane elastomer |
| JP4447379B2 (en) * | 2004-06-01 | 2010-04-07 | 東洋ゴム工業株式会社 | Manufacturing method of cleaning blade |
| JP5411486B2 (en) * | 2008-01-15 | 2014-02-12 | シンジーテック株式会社 | Blade member |
| JP5880375B2 (en) * | 2012-09-25 | 2016-03-09 | 富士ゼロックス株式会社 | Cleaning blade, cleaning device, process cartridge, and image forming apparatus |
-
2013
- 2013-03-26 JP JP2013065196A patent/JP6036471B2/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2016212218A5 (en) | ||
| JP2013061485A5 (en) | ||
| JP2014191179A5 (en) | ||
| JP2008293002A5 (en) | ||
| JP2011191732A5 (en) | ||
| JP2009186812A5 (en) | ||
| JP2013015830A5 (en) | ||
| JP2015036785A5 (en) | ||
| JP2006235615A5 (en) | ||
| JP2016040576A5 (en) | Toner for liquid developer, liquid developer, developer cartridge, process cartridge, and image forming apparatus | |
| JP2015114340A5 (en) | ||
| JP2014191104A5 (en) | ||
| JP2013242436A5 (en) | ||
| JP2015004887A5 (en) | ||
| EP2602667A3 (en) | Electrophotographic image forming apparatus | |
| JP2008089942A5 (en) | ||
| JP2013200415A5 (en) | ||
| JP2015028609A5 (en) | ||
| JP2014191115A5 (en) | ||
| JP2010032597A5 (en) | ||
| JP2008299108A5 (en) | ||
| JP2013238826A5 (en) | ||
| JP2015001560A5 (en) | ||
| JP2016102905A5 (en) | Image forming apparatus and image forming method | |
| JP2016143024A5 (en) |