Xerox C2424 Service Manual - Page 181
Tray 2, Tray 3, and Tray 4 Pick Shaft
UPC - 095205676532
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Tray 2, Tray 3, and Tray 4 Pick Shaft Test is the same for each pick shaft although for Tray 2 the media path motor is used and for the 525-Sheet Feeders the corresponding pick/transport motor is used. Test determines if the shaft can be driven by the clutch, if the nudger rollers are being driven, and the pick pad/nudger roller friction. R# Definition Typical Value Actions 0 Time to On peak fe MFG (sec). Only 1 On peak fe. MFG Only 2 On fe settling time (sec). MFG Only 3 On average fe. MFG Only 4 On fe ripple. MFG Only 5 Off fe settling time (sec). MFG Only 6 Time to lift plate up MFG (sec). Only Reports how long it takes the MP motor servo system to react to the sudden addition of the Tray 2 pick shaft load. Larger values may indicate a slipping or slow to engage clutch. Reports the peak effort required to accelerate the Tray 2 pick shaft load. A smaller value could indicate a slipping clutch. Reports the time it takes the MP motor servo system to "settle down" after the sudden addition of the Tray 2 pick shaft load. A longer time could indicate looseness in the Tray 2 pick shaft assembly or a slipping clutch. Reports the average effort needed to rotate the Tray 2 pick shaft in the pick direction at a constant velocity. An unusual value could indicate a binding shaft, missing pressure springs, hard/dirty rollers, or extra friction in the pick truck assembly. Reports the variation of effort required to rotate the Tray 2 pick shaft in the pick 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 Tray 2 pick shaft load. A larger value could indicate a dragging or slow to release clutch. Reports the time between the activation of the Tray 2 lift motor and the detection of the raised lift plate. Out of range values may indicate a problem with the lifting mechanism (which could effect the following friction measurement), or media left in the tray. General Troubleshooting 4-23