JP2008032851A5 - - Google Patents
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- Publication number
- JP2008032851A5 JP2008032851A5 JP2006203804A JP2006203804A JP2008032851A5 JP 2008032851 A5 JP2008032851 A5 JP 2008032851A5 JP 2006203804 A JP2006203804 A JP 2006203804A JP 2006203804 A JP2006203804 A JP 2006203804A JP 2008032851 A5 JP2008032851 A5 JP 2008032851A5
- Authority
- JP
- Japan
- Prior art keywords
- image
- toner
- forming apparatus
- carrier
- transfer
- 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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- 239000000969 carrier Substances 0.000 claims 10
- 230000015572 biosynthetic process Effects 0.000 claims 3
- 238000005755 formation reaction Methods 0.000 claims 3
- 239000000463 material Substances 0.000 claims 2
Claims (4)
前記像担持体を帯電する帯電手段と、
帯電された前記像担持体に静電潜像を形成するために像露光する書き込み手段と、
形成された前記静電潜像にトナーを供給してトナー像を形成するとともに前記像担持体から転写残トナーを除去する現像手段と、
転写バイアス電圧を印加されて記録材上に形成する画像のトナー像を前記像担持体から転写する転写手段と、
前記トナー像の転写後の前記像担持体に前記転写バイアス電圧とは逆極性の電圧を印加して転写残トナーを帯電させる帯電補助手段と、を備えた画像形成装置において、
前記像担持体における前記トナー像が形成されない非形成領域に対しては、前記トナー像が形成される画像領域に対するよりも絶対値の大きな前記転写バイアス電圧を印加することを特徴とする画像形成装置。 An image carrier;
A charging unit that charges a pre Kizo carrier,
Writing means for image exposure to form an electrostatic latent image on the charged image carrier;
A developing means for removing residual toner from said image bearing member to form a toner image by supplying toner to the formed electrostatic latent image,
Transfer means for transferring a toner image of an image formed on a recording material by applying a transfer bias voltage from the image carrier;
An image forming apparatus comprising: a charging auxiliary unit configured to apply a voltage having a polarity opposite to the transfer bias voltage to the image carrier after the transfer of the toner image to charge the transfer residual toner.
The transfer bias voltage having a larger absolute value is applied to a non-formation area where the toner image is not formed on the image carrier, as compared to an image area where the toner image is formed. .
（１）最初の画像のトナー像以前に前記転写手段を通過する前記像担持体の表面領域、
（２）最後の画像のトナー像以後に前記転写手段を通過する前記像担持体の表面領域、
の少なくとも一方であることを特徴とする請求項１または２に記載の画像形成装置。 The non-forming region is
(1) The surface area of the image carrier that passes through the transfer means before the toner image of the first image ;
(2) the surface area of the image carrier passing through the transfer means after the toner image of the last image ;
The image forming apparatus according to claim 1, wherein the image forming apparatus is at least one of the following.
前記転写手段は、前記中間転写ベルトを介して前記像担持体に圧接された抵抗性のローラ部材であって、
前記非形成領域で前記ローラ部材に印加する直流電圧をＶ１とし、前記画像領域で前記ローラ部材に印加する直流電圧をＶ２としたとき、
１．０×Ｖ２ ＜ Ｖ１ ＜ １．５×Ｖ２
であることを特徴とする請求項１乃至３いずれか１項記載の画像形成装置。 A resistive intermediate transfer belt on which a toner image is primarily transferred from the image carrier by the transfer means;
The transfer means is a resistive roller member pressed against the image carrier via the intermediate transfer belt,
When the DC voltage applied to the roller member in the non-formation region is V1, and the DC voltage applied to the roller member in the image region is V2,
1.0 × V2 <V1 <1.5 × V2
The image forming apparatus according to claim 1, wherein the image forming apparatus is an image forming apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006203804A JP4963381B2 (en) | 2006-07-26 | 2006-07-26 | Image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006203804A JP4963381B2 (en) | 2006-07-26 | 2006-07-26 | Image forming apparatus |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2008032851A JP2008032851A (en) | 2008-02-14 |
| JP2008032851A5 true JP2008032851A5 (en) | 2009-09-17 |
| JP4963381B2 JP4963381B2 (en) | 2012-06-27 |
Family
ID=39122368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006203804A Expired - Fee Related JP4963381B2 (en) | 2006-07-26 | 2006-07-26 | Image forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4963381B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5455018B2 (en) | 2008-09-17 | 2014-03-26 | 株式会社リコー | Image forming apparatus |
| JP2022097317A (en) * | 2020-12-18 | 2022-06-30 | キヤノン株式会社 | Image forming apparatus |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04216565A (en) * | 1990-12-17 | 1992-08-06 | Toshiba Corp | Electrophotographic recorder |
| JP2001075371A (en) * | 1999-09-02 | 2001-03-23 | Canon Inc | Image forming device |
| JP3977084B2 (en) * | 2002-01-16 | 2007-09-19 | キヤノン株式会社 | Color toner kit and image forming method |
| JP2004191711A (en) * | 2002-12-12 | 2004-07-08 | Fuji Xerox Co Ltd | Image forming apparatus |
-
2006
- 2006-07-26 JP JP2006203804A patent/JP4963381B2/en not_active Expired - Fee Related
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