Xerox Phaser 8400 Service Manual

General Troubleshooting 4-25
6 Time to lift plate up
(sec).
Reports the time between the
activation of the Tray 2 lift motor
and the detection of the raised lift
plate. Out of range values may
indicate a problem with the lifting
mechanism (which could effect
the following friction
measurement), or media left in
the tray.
7 Plate lifted average
fe.
Reports the peak effort required
to drive the pick shaft when the
nudger roller is in contact with
the separator pad.
A smaller value could indicate a
slipping clutch, missing nudger
assembly pressure spring, or
glazed/dirty roller/pad.
Paper Drive Power
Test picks paper from selected tray (test currently supports picking from Tray 2 only) and moves it
through either the simplex or duplex paper path to determine paper path power requirements.
R# Definition
Typical
Value
(8400)
Typical
Value
(8500/
8550) Actions
0 Tray Reports the tray from which the
test paper was picked.
1 Paper Size Reports the size of the picked
paper.
2Unused
3Unused
4 Tray 2 Pick Average
Power (watts)
Reports average of the power
over the pick interval (begin pick
to Deskew sensor).
Tray 2, Tray 3, and Tray 4 Pick Shaft (Continued)
Test is the same for each pick shaft although for tray 2 the media path motor is used and for the
525-sheet feeders the corresponding pick/transport motor is used. Test determines if the shaft
can be driven by the clutch, if the nudger rollers are being driven, and the pick pad/nudger roller
friction.
R# Definition
Typical
Value
(8400)
Typical
Value
(8500/
8550) Actions

Xerox Phaser 8400 Specifications

General

Brand	Xerox
Model	Phaser 8400
Category	Printer
Language	English