Invention Grant
US08854403B2 Image forming apparatus with a TFT backplane for xerography without a light source
有权
具有用于无光源的静电复印的TFT背板的图像形成装置
- Patent Title: Image forming apparatus with a TFT backplane for xerography without a light source
- Patent Title (中): 具有用于无光源的静电复印的TFT背板的图像形成装置
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Application No.: US12366680Application Date: 2009-02-06
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Publication No.: US08854403B2Publication Date: 2014-10-07
- Inventor: Vladislav Skorokhod , Gregory McGuire , Robert A. Street
- Applicant: Vladislav Skorokhod , Gregory McGuire , Robert A. Street
- Applicant Address: US CT Norwalk
- Assignee: Xerox Corporation
- Current Assignee: Xerox Corporation
- Current Assignee Address: US CT Norwalk
- Agency: Fay Sharpe LLP
- Main IPC: B41J2/39
- IPC: B41J2/39 ; B41J2/395 ; G03G15/32

Abstract:
Systems and methods are described that facilitate using TFT control of electronic discharge for surface potential reduction and latent image formation on an imaging member. Corona charging is performed to first create a background surface potential, followed by selective discharge of individual pixels using an array of TFTs to supply free charge carriers to reduce the electrostatic surface potential to nearly zero. This is followed by discharged area development (DAD) to develop the latent image on a print medium (e.g., paper). The described systems and methods do not require a HVPS to drive the backplane; therefore, the TFT matrix is electrostatically decoupled from the developer and other system components in direct contact with the imaging member. Accordingly, known addressing systems may be used to address the TFT array.
Public/Granted literature
- US20100201777A1 IMAGE FORMING APPARATUS WITH A TFT BACKPLANE FOR XEROGRAPHY WITHOUT A LIGHT SOURCE Public/Granted day:2010-08-12
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