The importance of the resistivity of the paper used in toner-based printers and copiers has now been well established and accepted by the paper industry. In the '70s, studies were made of the relationship between resistivity and the runnability, imaging, and release properties. Most of this work was done with the first generation of Keithley Instruments test fixtures, electrometers, and picoammeters, using a DC test voltage.A newly available system has two major changes: The test fixture applies much higher pressure to the test sample, and an alternating polarity test voltage is used to eliminate offset errors.Preliminary test data is presented. An industry-wide study is proposed to verify the procedure for correlating new data with existing results.