Analysis of Electrostatic Offset
Abstract:In the fuser process of electro-photography, defects may be caused by a phenomenon called electrostatic offset, in which image smear is caused by toner from the fuser member adhering to the paper after one rotation of the fuser member. This toner is transferred from the paper to the fuser member by electrostatic force. The occurrence of electrostatic offset depends on the electrical resistance of the fuser member and electric potential of the fuser delivery roller. In this study, we calculated the electric field of the fuser nip region, determined the shape of the fuser nip by structural calculation, and thus clarified the micro-mechanisms by which the electrostatic offset occurs. We also found that the occurrence of electrostatic offset can be predicted by the electric field strength of the fuser nip region and the electric charge distribution of toner.
Document Type: Research Article
Publication date: January 1, 2012
For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.
Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.
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