The Imaging Society of Japan (ISJ) Technical Committee part III meeting (The technical committee of toner-based material) standardized the blow-off toner charge measurement procedure, and released the standard two-component developer for the procedure. According to the standard procedure, the dispersion of the measured amount of toner charge (q/m) in the same two-component developer is minimized even when different operators measure the charge with different types of Faraday-cages. The obtained q/m according to the standardized procedure can be treated as a reproducible common value which can be obtained by everybody. The standard two-component developer can be used not only for calibrating Faraday-cages or blow-off measuring apparatuses, but also for carrying out quality control in the manufacturing of toner and carrier.
Toshihiko Oguchi, Masatoshi Kimura, Noboru Sawayama, Chiaki Suzuki, Yasusuke Takahashi, Manabu Takeuchi, Tatsuya Tada, Katsuyoshi Hoshino, "Standardization of The Blow-off Charge Measurement Procedure and Standard Developer" in Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP17), 2001, pp 369 - 373, https://doi.org/10.2352/ISSN.2169-4451.2001.17.1.art00081_1