Y-Axis Drive - Xerox Phaser 8400 Service Manual

Y-axis Drive

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.
R# Definition
0 HAHVN CCW
Average Fe (mpts)
1 HAHVN CCW Fe
Ripple (mpts)
2 HAHVN CW
Average Fe (mpts)
3 HAHVN CW Fe
Ripple (mpts)
4 HAHVN Start Fe
Settle time (sec)
5 HAHVN Reverse Fe
Settle time (sec)
6 HAHVN Stop Fe
Settle time (sec)
7 HAHVN Delta Print
Velocity Settle Time
(sec)
4-44
Typical Typical
Value Value
(8400) (8500/
8550)
4000 to 4000 to
5700 5800
100 to 0 to 500
380
-5200 to -5500 to
3800 -4000
80 to 380 75 to 350
0.08 to .05 to 0.2
1.0
0.17 to .12 to .3
1.1
-.001 to -.001 to
0.15 .30
0.02 to 0 to .11
0.10
Phaser 8400/8500/8550 Color Printer
Actions
Reports average following error
during the last half of the first
period.
Reports following error ripple
during the last half of the first
period.
Reports average following error
during the last half of the second
period.
Reports following error ripple
during the last half of the second
period.
Reports the time following the
start of motion that it takes the
following error 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.
Reports the time following the
start of motion stopping that it
takes the following error value to
enter the idle ripple band.
Reports the time following the
start of motion that it takes the Y-
axis delta velocity to enter the
CCW delta velocity ripple band.