Xerox PHASER 8500 Service Manual page 180

General Troubleshooting
4-50
This test drives the process motor a short distance in each direction to verify
that the dmfix drive unit was in its home position.
Drum Maint/Transfix Home
R# Definition
0 DM Initial FE Peak
(pm motor counts)
1 DM Initial FE Peak
Time (sec)
2 TF Initial FE Peak
(pm motor counts)
3 TF Initial FE Peak
Time (sec)
Typical Typical
Value Value (8500/
(8400) 8550/8560)
Phaser 8400/8500/8550/8560 Color Printer Service Manual
Actions
Reports the height of the initial
peak when starting rotation of
the dm drive gear.
Reports the time since the
start of CCW motion until the
peak was detected.
Reports the height of the initial
peak when starting rotation of
the tf drive gear.
Reports the time since the
start of CW motion until the
peak was detected.