Check Misc Menu - Xerox Phaser 8400 Service Manual

Tray 3 and Tray 4 Pick/Feed Motor
This test turns on the specified motor and runs it at constant velocity for approximately 25
revolutions while recording drive data. The test is the same for each motor. Requesting a test for
a 525-sheet feeder that is not installed will generate an "Option Not Detected" message.
R# Definition
0 Motor fe ripple
(ticks)
1 Motor fe average
(ticks)
2 Motor drive voltage
ripple (volts)
3 Motor drive voltage
(volts)
4 Motor drive power
ripple (watts)
5 Motor drive power
average (watts)

Check Misc Menu

Paper Path Status
This test looks at the paper path sensors to identify if anything would prevent a page from
printing. The front panel will display messages indicating if anything unexpected is found for: R0 =
upper paper path; R1 = tray 1; R2 = tray 2; R3 = tray 3; and R4 = tray 4. The display is a string of
0's and 1's (one digit for each sensor state) and is listed below from most significant bit to least
significant bit.
1 = an item that needs to be corrected.
0 = normal
R# Definition
0 Upper Paper Path
0
0
0
0
Service Manual
Typical
Value Actions
Reports amount of variation of the motor
following error over the recording interval.
Reports the motor following error average
value of the recording interval.
Reports amount of variation of the motor drive
voltage over the recording interval.
Reports the motor drive voltage average value
of the recording interval.
Reports amount of variation of the motor drive
power over the recording interval.
Reports motor drive power average value over
the recording interval.
Typical
Value Actions
6 -31 Not used, always 0
5 - Front door open
4 - Top door open
3 - Paper at deskew sensor
2 - Paper at preheat exit sensor
4-45