Xerox C2424 Service Manual - Page 176
Check Shafts Menu, Deskew Shaft
UPC - 095205676532
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Check Shafts Menu Deskew Shaft Runs the media path drive train and engages the deskew clutch on the fly then disengages the clutch. The test is repeated in both directions to determine clutch characteristics, steady state drive requirements, bearing status, etc. R# Definition Typical Value Actions 0 Time to CCW On peak fe (sec). 0.01 to 0.04 Reports how long it takes the MP motor servo system to react to the sudden addition of the deskew shaft load. Larger values may show a slipping/slow to engage clutch. 1 CCW On peak fe. 370 to 980 Reports peak effort needed to accelerate the deskew shaft load. A smaller value could indicate a slipping clutch. 2 CCW On fe settling 0.0 to time (sec). 0.25 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. 3 CCW On average fe. 250 to 600 Reports the average effort required to rotate the deskew shaft in the CCW 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). 4 CCW On fe ripple. 80 to 300 Reports the variation of effort required to rotate the deskew shaft in the CCW direction at a constant velocity. A larger value could indicate particles in the gears or non uniform contamination of a roller (causing a lump). 5 CCW Off fe settling .10 to .20 Reports the time it takes the MP motor servo time (sec). system to "settle down" after the sudden release of the deskew shaft load. A larger value can indicate a slow to release or dragging clutch. 6 Time to CW On peak fe (sec). 0.01 to 0.06 Reports a time that indicates how long it takes the MP motor servo system to react to the sudden addition of the deskew shaft load. Larger values may indicate a slipping or slow to engage clutch. 4-18 WorkCentre C2424 Service Manual