4-50 Phaser 8400/8500/8550/8560 Color Printer Service Manual
General Troubleshooting
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
Typical
Value
(8400)
Typical
Value (8500/
8550/8560)
Actions
0 DM Initial FE Peak
(pm motor counts)
Reports the height of the initial
peak when starting rotation of
the dm drive gear.
1 DM Initial FE Peak
Time (sec)
Reports the time since the
start of CCW motion until the
peak was detected.
2 TF Initial FE Peak
(pm motor counts)
Reports the height of the initial
peak when starting rotation of
the tf drive gear.
3 TF Initial FE Peak
Time (sec)
Reports the time since the
start of CW motion until the
peak was detected.
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