Xerox Phaser 8400 Service Manual page 171

Paper Sensor Bounce Times (Continued)
Paper is picked and moved through either the simplex paper path to determine the paper trailing
edge bounce interval at each paper path sensor. R values have alternate definitions or are
unused depending on the pick tray and if simplex or duplex path was selected.
R# Definition
5 Preheat Bounce
Interval (us)
6 Strip Bounce
Interval (us)
7 Exit Bounce Interval
(us)
Duplex 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
0 Tray
1 Paper Size
2 Unused
3 Unused
4 Tray 2 Pick Average
Power (watts)
General Troubleshooting
Typical Typical
Value Value
(8400) (8500/
8550)
Typical Typical
Value Value
(8400) (8500/
8550)
Actions
Reports the interval during which
the Preheat sensor bounces
following the passage of the
paper trailing edge.
Reports the interval during which
the Strip sensor bounces
following the passage of the
paper trailing edge.
Reports the interval during which
the exit sensor bounces following
the passage of the paper trailing
edge.
Actions
Reports the tray from which the
test paper was picked.
Reports the size of the picked
paper.
Reports average of the power
over the pick interval (begin pick
to Deskew sensor).
4-31