General Troubleshooting 4-23
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
(sec).
MFG
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.
1 On peak fe. MFG
Only
Reports the peak effort required to accelerate
the Tray 2 pick shaft load. A smaller value
could indicate a slipping clutch.
2 On fe settling time
(sec).
MFG
Only
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.
3 On average fe. MFG
Only
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.
4 On fe ripple. MFG
Only
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).
5 Off fe settling time
(sec).
MFG
Only
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.
6 Time to lift plate up
(sec).
MFG
Only
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.
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