Abstract
In the mono-component development process, transportation of toner on the developing roller and thickness control of toner layers are the most important factors to consider when attempting to form toner layers of uniform and proper thickness
We have improved earlier observation methods to observe directly and analyze the toner transportation and toner behavior in the layer thickness control area, and using the improved method, we have experimented systematically with the various kinds of toner transportation and layer thickness control systems.
Above all, we concentrated on disruption of toner layers by contaminant infiltration.
As a result, the position of a slip Plane existing between static toner and flowing toner in the proximity of the metering area, was found to be most important in preventing a contaminant from entering the metering area.
Based on these results, we have found highly stable layer-forming method, called the “Contact Blade Method”, which minimizes the effects of infiltration by contaminants, and has succeeded in putting it into practical application.
