SMALL SAMPLE DEVELOPER CONDUCTIVITY MEASUREMENT CELL
Original Publication Date: 1995-Oct-31
Included in the Prior Art Database: 2004-Apr-07
Xerox Disclosure Journal
Conductivity of a xerographic developer is an important variable in determining the performance of two-component xerographic developers. Conductivity measurements can be performed in a Gutman Cell, which consists of a magnetic roller, trim blade, motor drive and a guarded electrode. One disadvantage of the Gutman cell is that it requires about a 50 mL sample of developer, a quantity that is difficult to obtain in some small scale exploratory or experimental engineering investigations. Disclosed is a "Mini cell" that requires only about a 4 mL sample of developer, and which gives results similar to the Gutman cell.