Xerox 8500DN Service Manual - Page 172

General Troubleshooting Stripper Contact (Continued) R# Definition 4 Release Displacement (mpts) Typical Value (8400) -0.75 to 2.2 5 Release Time (sec) 0 to 0.09 6 Releasing Period 0 to .001 (sec) 7 Releasing -45 to 0 Amplitude (mpts) Typical Value (8500/ 8550/8560) Actions -4.5 to 4.5 .002 to .1 Reports the static difference between the average ya_fe before and after the blade disengages from the drum, indicating the strength of the blade/drum interaction while pulling off the drum (see R0). Reports the time between the disengagement of the stripper sol and the point when the blade begins to withdraw from the drum (see R2). -0.5 to .75 Reports the time between the disengagement of the stripper sol and the point when the reaction of the drum to the withdrawal of the blade fades back into the ripple (see R2). -10 to 1 Reports the magnitude of the reaction of the drum to the blade withdrawal (see R3). This test uses the drum servo error signal to indicate when the drum is contacted by the roller blade. Drum Maintenance Contact R# Definition Typical Value (8400) 0 Initial Contact Position (pm motor counts) Typical Value (8500/ 8550/8560) Actions Reports the distance the pm motor was moved (raising the dm unit), before a Y-Axis reaction was detected. Shows that the dm is raising, provides blade/drum gap information. 4-42 Phaser 8400/8500/8550/8560 Color Printer Service Manual