The Effect of Toner Additives on Mono-Component, Non-Magnetic Toner Charging using a Current Measurement Technique
Abstract:In the mono-component non-magnetic toner development system, the toner is charged by contacting with the system parts, such as a doctor blade, a development roller and a supply roller. In such systems the toner charging and fluidity is conventionally controlled by the use of extra-particulate additives on the toner surface. However, the influences of the additives on the charging and fluidity of the toner are still not completely understood. In this study we investigated the effect of using sub-micron sized inorganic extra-particulates on the dynamics of the toner charging mechanism by measuring the currents flowing through each of the system parts. Development rollers having various surface properties and toners having different surface concentrations of the toner additives were prepared. By using the current measurement technique, we examined the influences of the additive on the toner charging in the development process. It is shown that the system currents and resulting toner charges are very dependent on the amount of the additives. As a result, we concluded that these additives affect not only the toner mass transport but also the charge transfer.
Document Type: Research Article
Publication date: January 1, 2005
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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