A nanoscale pigment particle composition includes an organic benzimidazolone pigment, and a sterically bulky stabilizer compound, wherein the benzimidazolone pigment associates non-covalently with the sterically bulky stabilizer compound that is an alkylated derivative of an aromatic acid; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale pigment particles.

 
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> NANOSIZED PARTICLES OF BENZIMIDAZOLONE PIGMENTS

> Device and method for detecting position of unit mounted in image forming apparatus

~ 00581