JP2009186812A5 - - Google Patents
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- JP2009186812A5 JP2009186812A5 JP2008027548A JP2008027548A JP2009186812A5 JP 2009186812 A5 JP2009186812 A5 JP 2009186812A5 JP 2008027548 A JP2008027548 A JP 2008027548A JP 2008027548 A JP2008027548 A JP 2008027548A JP 2009186812 A5 JP2009186812 A5 JP 2009186812A5
- Authority
- JP
- Japan
- Prior art keywords
- image
- intermediate transfer
- image carrier
- toner
- transfer member
- 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
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Claims (2)
前記像保持体表面を帯電する帯電手段と、
前記帯電手段によって帯電された前記像保持体上に静電潜像を形成する静電潜像形成手段と、
トナーを含む現像剤により前記静電潜像をトナー像に現像する現像手段と、
前記像保持体に接触し、前記トナー像が前記像保持体から一次転写される中間転写体と、
前記トナー像を前記中間転写体に一次転写する一次転写手段と、
前記中間転写体に転写された前記トナー像を記録媒体に二次転写する二次転写手段と、を備え、
前記中間転写体が前記像保持体表面に接触する接触部において、前記像保持体の移動速度と前記中間転写体の移動速度との間に速度差が設けられ、前記速度差の絶対値は０．３ｍｍ／ｓｅｃ以上２０ｍｍ／ｓｅｃ以下であり、
前記トナーは、トナー粒子及び数平均粒子径が５０ｎｍ以上３００ｎｍ以下の球形粒子を含み、前記球形粒子の遊離率が５体積％以上４０体積％以下である画像形成装置。 An image carrier,
Charging means for charging the surface of the image carrier;
An electrostatic latent image forming unit that forms an electrostatic latent image on the image carrier charged by the charging unit;
Developing means for developing the electrostatic latent image into a toner image with a developer containing toner;
An intermediate transfer member in contact with the image carrier, and the toner image is primarily transferred from the image carrier;
Primary transfer means for primary transfer of the toner image to the intermediate transfer member;
Secondary transfer means for secondary transfer of the toner image transferred to the intermediate transfer member to a recording medium,
At the contact portion where the intermediate transfer member contacts the surface of the image carrier, a speed difference is provided between the moving speed of the image carrier and the moving speed of the intermediate transfer member, and the absolute value of the speed difference is 0. .3 mm / sec or more and 20 mm / sec or less,
The image forming apparatus, wherein the toner includes toner particles and spherical particles having a number average particle diameter of 50 nm or more and 300 nm or less, and a liberation rate of the spherical particles is 5 volume% or more and 40 volume% or less.
前記一次転写手段は、前記中間転写ベルトを介して前記像保持体に押圧して配された剛性体の一次転写ロールである、請求項１に記載の画像形成装置。 The intermediate transfer member is an intermediate transfer belt,
The image forming apparatus according to claim 1 , wherein the primary transfer unit is a rigid primary transfer roll that is pressed against the image carrier via the intermediate transfer belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008027548A JP5531377B2 (en) | 2008-02-07 | 2008-02-07 | Image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008027548A JP5531377B2 (en) | 2008-02-07 | 2008-02-07 | Image forming apparatus |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2009186812A JP2009186812A (en) | 2009-08-20 |
| JP2009186812A5 true JP2009186812A5 (en) | 2011-03-24 |
| JP5531377B2 JP5531377B2 (en) | 2014-06-25 |
Family
ID=41070108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008027548A Active JP5531377B2 (en) | 2008-02-07 | 2008-02-07 | Image forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5531377B2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012063636A (en) * | 2010-09-16 | 2012-03-29 | Ricoh Co Ltd | Manufacturing method of toner, and toner |
| JP5845689B2 (en) | 2011-07-27 | 2016-01-20 | 富士ゼロックス株式会社 | Image forming apparatus |
| JP5853468B2 (en) | 2011-07-29 | 2016-02-09 | 富士ゼロックス株式会社 | Image forming apparatus |
| JP6399804B2 (en) | 2013-06-24 | 2018-10-03 | キヤノン株式会社 | toner |
| JP2015014652A (en) * | 2013-07-03 | 2015-01-22 | 富士ゼロックス株式会社 | Image forming apparatus, and process cartridge |
| JP6107497B2 (en) * | 2013-07-17 | 2017-04-05 | 富士ゼロックス株式会社 | Image forming apparatus and process cartridge |
| JP6410593B2 (en) | 2013-12-26 | 2018-10-24 | キヤノン株式会社 | Magnetic toner |
| JP6341660B2 (en) | 2013-12-26 | 2018-06-13 | キヤノン株式会社 | Magnetic toner |
| JP7330839B2 (en) * | 2019-09-27 | 2023-08-22 | キヤノン株式会社 | Toner and two-component developer |
| JP2023000504A (en) | 2021-06-18 | 2023-01-04 | 株式会社リコー | Image forming apparatus and image forming method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002318494A (en) * | 2001-04-20 | 2002-10-31 | Fuji Xerox Co Ltd | Image forming device |
| JP4207475B2 (en) * | 2002-07-01 | 2009-01-14 | 富士ゼロックス株式会社 | Image forming apparatus |
| JP2004198843A (en) * | 2002-12-19 | 2004-07-15 | Ricoh Co Ltd | Method and device for toner image transfer and image forming apparatus |
| JP2004205643A (en) * | 2002-12-24 | 2004-07-22 | Fuji Xerox Co Ltd | Image forming apparatus |
| JP2005037596A (en) * | 2003-07-18 | 2005-02-10 | Fuji Xerox Co Ltd | Image forming apparatus |
| JP2006072247A (en) * | 2004-09-06 | 2006-03-16 | Fuji Xerox Co Ltd | Intermediate transfer belt, image forming apparatus, and intermediate transfer unit |
| JP2006235588A (en) * | 2005-01-27 | 2006-09-07 | Ricoh Co Ltd | Image forming apparatus and image forming method |
-
2008
- 2008-02-07 JP JP2008027548A patent/JP5531377B2/en active Active
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