Xerox Phaser 8400

4-40 Phaser 8400/8500/8550 Color Printer
9 Blade Disengaged
Time (sec)
-0.05 to
0.05
Reports the time from the unload
blade command to the engine
until the drum indicates no
further blade contact.
Tilt Drive
This test drives the printhead tilt mechanism through one cycle to determine if it is controllable
and operating as expected.
R# Definition
Typical
Value
(8400)
Typical
Value
(8500/
8550) Actions
0 Tilt Engage Cap
Position (min)
10 to 600 50 to 550 Reports the distance from the
cap Home position to the tilt cam
engage point.
1 Pre Standby Peak
Location ()
325 to
3100
-125 to
10
Reports the distance around the
tilt cam from the tilt engage
position to the pre standby peak.
Should be in degrees, but
currently units/scaling are
unverified.
2 Pre Standby peak
Magnitude (pm ticks)
-5100 to
-500
-150 to
-20
Reports the pm motor following
error at the pre standby peak
location.
3 Post Wipe Peak
Location ()
1400 to
4150
-450 to
150
Reports the distance around the
tilt cam from the tilt engage
position to the post wipe peak.
Should be in degrees, but
currently units/scaling are
unverified.
4 Post Wipe peak
Magnitude (pm ticks)
-4000 to
-75
-130 to
25
Reports the pm motor following
error at the post wipe peak
location.
Drum Maintenance Drive (Continued)
With the Y-axis rotating, the drum maintenance unit is loaded against the drum for a short time in
each configuration (roller and blade/blade only)
R# Definition
Typical
Value
(8400)
Typical
Value
(8500/
8550) Actions