Document Type and Number:
Japanese Patent JPS5043937
Kind Code:
A
Abstract:
A method and apparatus is provided to test samples of developer material comprising carrier and toner particles. The apparatus has a hopper into which a sample of developer is placed. A gate is opened to allow the developer to flow from the hopper over at least a conductive surface and two conductive pads located below the conductive surface to develop the same. A development electrode plate is spaced from the conductive pads to enhance solid area development. After development, the electrode plate is removed from the apparatus to expose the conductive pads and the optical density of toner development of the conductive pads is analyzed to determine developer quality. This apparatus is portable and may be used by a service representative to test developer on machine location.
Application Number:
JP6904574A
Publication Date:
April 21, 1975
Filing Date:
June 17, 1974
Export Citation:
International Classes:
G03G15/08; G03G21/10; (IPC1-7): G03G15/06