Xerox 8500DN Service Manual - Page 145

General Troubleshooting Deskew Shaft (Continued) R# Definition 8 CW On fe settling time (sec). 9 CW On average fe. 10 CW On fe ripple. 11 CW Off fe settling time (sec). Typical Value (8400) Typical Value (8500/ 8550/8560) Actions 0.010 to 0 to .2 0.20 -610 to -220 -3 to 1.3 110 to 400 -2.25 to -1.0 0.010 to .01 to .05 0.20 Reports the time it takes the MP motor servo system to "settle down" after the sudden addition of the deskew shaft load. A longer time could indicate a looseness in the deskew shaft assembly or a slipping clutch. Reports the average effort required to rotate the deskew shaft in the CW direction at a constant velocity. An unusual value could indicate a difference in the composition and/or number of the rollers, the nip pressure, or out of range mechanical dimensions due to wear or contamination (such as paper dust increasing the effective diameter of a roller). Reports the variation of effort required to rotate the deskew shaft in the CW direction at a constant velocity. A larger value could indicate particles in the gears or non uniform contamination of a roller (causing a lump). Reports the time it takes the MP motor servo system to "settle down" after the sudden release of the deskew shaft load. A larger value could indicate a dragging or slow to release clutch. Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-15