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Phaser 8400/8500/8550/8560 Color Printer Service Manual 4-43
General Troubleshooting
Check Motors Menu
This test turns on the Y-Axis motor and runs it very slowly for one revolution.
This test turns on the X-Axis motor and runs it very slowly for one revolution.
Y-Axis Motor
R# Definition
Typical
Value
(8400)
Typical
Value (8500/
8550/8560)
Actions
0 Motor fe ripple
(ticks)
0.08 to 0.60 .07 to .7 Reports variation of the motor
following error.
1 Motor fe average
(ticks)
0.5 to 0.7 .5 to .8 Reports the motor following
error average value.
2 Motor drive voltage
ripple (volts)
0.34 to 1.3 .3 to 1.5 Reports amount of variation
of the motor drive voltage.
3 Motor drive voltage
(volts)
-1.4 to -0.8 -1.6 to -.8 Reports average value of
motor drive voltage.
4 Motor drive power
ripple (watts).
0.25 to 1.8 .06 to .13 Reports variation of motor
drive power.
5 Motor drive power
average (watts)
1.25 to 2.6 1.3 to 2.5 Reports average value of
motor drive power.
X-Axis Motor
R# Definition
Typical
Value
(8400)
Typical
Value (8500/
8550/8560)
Actions
0 Motor Voltage A
Ripple (volts).
84 to 86 59 to 62 Reports amount of variation of
the motor phase A drive
voltage.
1 Motor Voltage A
Average (volts)
-0.120 to
0.13
.10 to .05 Reports the motor phase A
drive voltage average value.
2 Motor Voltage B
Ripple (volts)
84 to 86 59 to 62 Reports amount of variation of
the motor phase B drive
voltage.
3 Motor Voltage B
Average (volts)
-.012 to
0.1
.04 to .11 Reports the motor phase B
drive voltage average value.
4 Motor Drive Power
Ripple (watts)
0.5 to 2.0 .1 to .5 Reports amount of variation of
the motor drive power.
5 Motor Drive Power
Average (watts)
9 to 13 5.5 to 7.5 Reports the motor drive power
average value.