Xerox Phaser 8500 Service Manual

Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-39
General Troubleshooting
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
R# Definition
Typical
Value
(8400)
Typical
Value (8500/
8550/8560)
Actions
0 HAHVN CCW
Average Fe (mpts)
4000 to
5700
4000 to
5800
Reports average following
error during the last half of the
first period.
1 HAHVN CCW Fe
Ripple (mpts)
100 to 380 0 to 500 Reports following error ripple
during the last half of the first
period.
2 HAHVN CW
Average Fe (mpts)
-5200 to
3800
-5500 to
-4000
Reports average following
error during the last half of the
second period.
3 HAHVN CW Fe
Ripple (mpts)
80 to 380 75 to 350 Reports following error ripple
during the last half of the
second period.
4 HAHVN Start Fe
Settle time (sec)
0.08 to 1.0 .05 to 0.2 Reports the time following the
start of motion for the Fe value
to enter the CCW ripple band.
5 HAHVN Reverse Fe
Settle time (sec)
0.17 to 1.1 .12 to .3 Reports the time following the
start of motion reversing that it
takes the following error value
to enter the CW ripple band.
6 HAHVN Stop Fe
Settle time (sec)
-.001 to
0.15
-.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.
7 HAHVN Delta Print
Velocity Settle Time
(sec)
0.02 to
0.10
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.

Xerox Phaser 8500 Specifications

General

Brand	Xerox
Model	Phaser 8500
Category	Printer
Language	English