Xerox PHASER 8500 Service Manual page 169

Phaser 8400/8500/8550/8560 Color Printer Service Manual
This procedure performs a "4 corner" test using the minimum and maximum
velocity and acceleration used during printing and minimum and maximum
load for a total of eight test cycles. Measures servo response parameters
under various conditions.
Y-Axis Drive
Typical
Value
R# Definition (8400)
0 HAHVN CCW 4000 to
Average Fe (mpts) 5700
1 HAHVN CCW Fe 100 to 380 0 to 500
Ripple (mpts)
2 HAHVN CW -5200 to
Average Fe (mpts) 3800
3 HAHVN CW Fe 80 to 380
Ripple (mpts)
4 HAHVN Start Fe 0.08 to 1.0 .05 to 0.2
Settle time (sec)
5 HAHVN Reverse Fe 0.17 to 1.1 .12 to .3
Settle time (sec)
6 HAHVN Stop Fe -.001 to
Settle time (sec) 0.15
7 HAHVN Delta Print 0.02 to
Velocity Settle Time 0.10
(sec)
General Troubleshooting
Typical
Value (8500/
8550/8560) Actions
4000 to Reports average following
5800 error during the last half of the
first period.
Reports following error ripple
during the last half of the first
period.
-5500 to Reports average following
-4000 error during the last half of the
second period.
75 to 350 Reports following error ripple
during the last half of the
second period.
Reports the time following the
start of motion for the Fe value
to enter the CCW ripple band.
Reports the time following the
start of motion reversing that it
takes the following error value
to enter the CW ripple band.
-.001 to .30 Reports the time following the
start of motion stopping that it
takes the following error value
to enter the idle ripple band.
0 to .11 Reports the time following the
start of motion that it takes Y-
Axis delta velocity to enter the
CCW delta velocity ripple band.
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