JP2009180882A5 - - Google Patents
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- JP2009180882A5 JP2009180882A5 JP2008018925A JP2008018925A JP2009180882A5 JP 2009180882 A5 JP2009180882 A5 JP 2009180882A5 JP 2008018925 A JP2008018925 A JP 2008018925A JP 2008018925 A JP2008018925 A JP 2008018925A JP 2009180882 A5 JP2009180882 A5 JP 2009180882A5
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- image
- charging
- transfer
- image carrier
- 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.)
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Claims (3)
前記像担持体を帯電する帯電部材と、
前記像担持体上に潜像を形成する潜像形成手段と、
前記像担持体に形成された前記潜像を現像剤像として現像する現像部材と、
前記像担持体に現像された前記現像剤像を記録材に転写する転写部材と、
前記帯電部材に電圧を印加する帯電電圧印加手段と前記転写部材に電圧を印加する転写電圧印加手段とを有し、前記帯電電圧印加手段と前記転写電圧印加手段が接続されており、前記像担持体に形成された前記現像剤像を記録材に転写する場合、前記転写電圧印加手段が所定極性の電圧を前記転写部材に印加し、前記転写部材をクリーニングする場合、前記帯電電圧印加手段が前記所定極性とは逆極性の電圧を前記転写部材に印加する電圧印加手段と、を備え、
前記転写電圧印加手段は、前記転写部材に流れる電流を検出する電流検出手段を有しており、
前記帯電電圧印加手段から前記帯電部材に電圧を印加した際に、前記電流検出手段によって前記帯電部材に流れる電流を検知して、検知結果に基づき前記帯電部材と前記像担持体との間で放電が開始する際の放電開始電圧を判断する判断手段を備えることを特徴とする画像形成装置。 An image carrier;
A charging member for charging the image carrier;
Latent image forming means for forming a latent image on a front Kizo carrier,
And the current image member you developing the latent image formed on the image carrier as a toner image,
A transfer member for transferring the developer image developed on the image carrier to a recording material;
A charge voltage applying means for applying a voltage to the charging member; and a transfer voltage applying means for applying a voltage to the transfer member. The charging voltage applying means and the transfer voltage applying means are connected, and When transferring the developer image formed on the body to a recording material, the transfer voltage applying means applies a voltage of a predetermined polarity to the transfer member, and when cleaning the transfer member, the charging voltage applying means Voltage application means for applying a voltage having a polarity opposite to the predetermined polarity to the transfer member,
The transfer voltage application means has a current detection means for detecting a current flowing through the transfer member,
When a voltage is applied to the charging member from the charging voltage applying unit, the current flowing through the charging member is detected by the current detecting unit, and discharging is performed between the charging member and the image carrier based on the detection result. An image forming apparatus comprising: a determination unit that determines a discharge start voltage at the time of starting .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008018925A JP5305674B2 (en) | 2008-01-30 | 2008-01-30 | Image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008018925A JP5305674B2 (en) | 2008-01-30 | 2008-01-30 | Image forming apparatus |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2009180882A JP2009180882A (en) | 2009-08-13 |
| JP2009180882A5 true JP2009180882A5 (en) | 2011-02-10 |
| JP5305674B2 JP5305674B2 (en) | 2013-10-02 |
Family
ID=41034915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008018925A Expired - Fee Related JP5305674B2 (en) | 2008-01-30 | 2008-01-30 | Image forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5305674B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5436003B2 (en) | 2009-03-31 | 2014-03-05 | キヤノン株式会社 | Image forming apparatus and power supply |
| JP2011100015A (en) | 2009-11-06 | 2011-05-19 | Canon Inc | Image forming apparatus |
| JP5656398B2 (en) * | 2009-12-18 | 2015-01-21 | キヤノン株式会社 | Image forming apparatus |
| JP5615004B2 (en) | 2010-03-05 | 2014-10-29 | キヤノン株式会社 | High voltage control device, image forming apparatus, and high voltage output device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0619276A (en) * | 1992-06-30 | 1994-01-28 | Canon Inc | Image forming device |
| JP3214120B2 (en) * | 1992-12-24 | 2001-10-02 | キヤノン株式会社 | Charging device and image forming device |
| JPH10339988A (en) * | 1997-06-06 | 1998-12-22 | Oki Data:Kk | Toner image recorder |
| JP2005258309A (en) * | 2004-03-15 | 2005-09-22 | Fuji Xerox Co Ltd | Image forming apparatus |
-
2008
- 2008-01-30 JP JP2008018925A patent/JP5305674B2/en not_active Expired - Fee Related
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