Xerox Phaser 8400 Service Manual page 194

Check Menu Value Key Table (Continued)
6 Down Motion
Drive Error (uin)
7 Down Motion
Drive Error
Ripple (uin)
8 Down Distance
(uin)
9 Lock Disengage
Distance (uin)
10 Lock Disengage
Peak (uin)
11 Bottom
Encounter
Distance (uin)
12 Turnaround
Recovery time
(sec)
Paper Path Drive - This test moves the gear train in one direction while capturing data, does
a reversal to capture reversal transient data, then operates in the other direction.
Test ID# R Definition
#
Paper Path Drive 0 Forward Drive
Power Level
(watts)
1 Up Motion Drive
Error Ripple
(watts)
2 Swing Arm
Transition Time
(sec)
General Troubleshooting
Reports the average following
error while move the wiper up
from the low limit to the lock
encounter point.
Reports the difference between
the max and min following error
over the same interval.
Reports the difference between
the max and min limits of travel
when moving up.
Reports the distance up from
the upper stall point at which the
head lock latch releases.
Reports the peak following error
at the point the latch releases
Reports the distance up from
the upper limit of travel at which
the wiper first encounters the
lower travel limit.
Reports the time following the
start of the turnaround motion
that the motion drive error return
to normal in the opposite
direction.
Results Interpretation/Actions
Reports the average drive
power level in the foreword
direction.
Reports the average drive
power level in the backward
direction.
Reports the time that the lower
portion of the paper path drive is
disconnected while the swing
arm transitions to the other drive
position.
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