Xerox Phaser 8400 Service Manual page 156

Tilt Drive
This test drives the printhead tilt mechanism through one cycle to determine if it is controllable
and operating as expected.
R# Definition
0 Tilt Engage Cap
Position (min)
1 Pre Standby Peak
Location ()
2 Pre Standby peak
Magnitude (pm ticks)
3 Post Wipe Peak
Location ()
4 Post Wipe peak
Magnitude (pm ticks)
Tray 2, Tray 3, Tray 4, Lift Plate Drive
This test raises the lift plate to verify motion and sensor operation. If the test is requested for a
525-sheet feeder that is not installed, an "Option Not Detected" message is generated.
R# Definition
0 Tray Configuration
1 Start Peak Power
(watts)
2 Slack Take-up Time
(sec)
3 Average Lift Power
(watts)
4-36
Typical
Value Actions
10 to 600 Reports the distance from the cap Home
position to the tilt cam engage point.
325 to Reports the distance around the tilt cam from
3100 the tilt engage position to the pre standby
peak. Should be in degrees, but currently units/
scaling are unverified.
-5100 to Reports the pm motor following error at the pre
-500 standby peak location.
1400 to Reports the distance around the tilt cam from
4150 the tilt engage position to the post wipe peak.
Should be in degrees, but currently units/
scaling are unverified.
-4000 to Reports the pm motor following error at the
-75 post wipe peak location.
Typical
Value Actions
Reports the tray status (present, plate not
lifted, etc.). See Paper Path Status test for a
description of the configuration encoding.
Reports the highest peak during the first
quarter of the lifting interval.
Reports the interval between the initial power
min (when the plate is not yet engaged), and
the point where the lifting power becomes a
constant.
Reports the average power over the center ¾
of the lifting interval.
Phaser 8400 Color Printer