Xerox 8500DN Service Manual - Page 148
Tray 1 Pick Shaft, Wiper Shaft, Continued
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UPC - 095205022063
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General Troubleshooting Wiper Shaft (Continued) R# Definition Typical Value (8400) 9 CW On average fe. -50 to 15 10 CW On fe ripple. 20 to 75 11 CW Off fe settling -5 to .01 time (sec). Typical Value (8500/ 8550/8560) Actions .02 to .2 Reports the average effort required to rotate the wiper 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). 0 to .4 Reports the variation of effort needed to rotate the wiper shaft in the CW direction at a constant velocity. A larger value may show particles in the gears or non uniform contamination of a roller (causing a lump). .02 to .22 Reports the time it takes the MP motor servo system to "settle down" after the sudden release of the wiper shaft load. A larger value could indicate a dragging or slow to release clutch. Runs the Media Path Drive train and engages the Tray 1 Pick SAolenoid on the fly. The Pick Shaft goes through two full revolutions while drive requirements are determined. Tray 1 Pick Shaft R# Definition Typical Value (8400) Typical Value (8500/ 8550/8560) Actions 0 Off average MP fe. 800 to 1500 (mpts). Reports the average MP fe during the run in interval before the pick shaft is engaged. 4-18 Phaser 8400/8500/8550/8560 Color Printer Service Manual
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