Title :
Development efficiency in electrophotography
Author_Institution :
IBM Almaden Res. Center, San Jose, CA, USA
Abstract :
Two measures of development efficiency are defined for dual-component electrophotographic development systems based on the known physics of development. For the insulative magnetic brush development system, the efficiency measures the strength of the electric field as seen by toner particles. Experimentally it is shown that it is closely equal to the dielectric constant of the mix. Theoretical questions raised by this result are discussed. For the conductive magnetic brush development system, the efficiency is unity for an infinitely conductive system are decreases as the conductivity decreases. Therefore it is a measure of developer degradation.<>
Keywords :
electrophotography; magnetic devices; conductive magnetic brush development system; developer degradation; dual-component electrophotographic development systems; insulative magnetic brush development system; Brushes; Conductivity; Dielectric constant; Dielectric measurements; Dielectrics and electrical insulation; Electric variables measurement; Electrophotography; Magnetic field measurement; Particle measurements; Physics;
Conference_Titel :
Industry Applications Society Annual Meeting, 1989., Conference Record of the 1989 IEEE
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/IAS.1989.96952
