Xerox Phaser 8400 Service Manual page 173

Duplex Paper Trail Edge Times
Paper is picked and moved through either the simplex or duplex paper path to determine the
paper trailing edge arrival time 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
7 Exit Trailing Edge
Interval (us)
8 Duplex Deskew
Trailing Edge
Interval (us)
9 Duplex Preheat
Trailing Edge
Interval (us)
10 Duplex Strip Trailing
Edge Interval (us)
11 Duplex Exit Trailing
Edge Interval (us)
General Troubleshooting
Typical Typical
Value Value
(8400) (8500/
8550) Actions
Reports the interval from the time
the engine software is
commanded to start the duple
pick process until the Exit sensor
deactivates.
Reports the interval from the time
the engine software is
commanded to start the transfix
process until the Deskew sensor
deactivates (part way through the
paper transfix motion).
Reports the interval from the time
the engine software is
commanded to start the transfix
process until the Preheat sensor
deactivates. (part way through
the paper transfix motion).
Reports the interval from the time
the engine software is
commanded to start the exit
process until the Strip sensor
deactivates (part way through the
paper exit motion).
Reports the interval from the time
the engine software is
commanded to start the duplex
pick process until the Exit sensor
deactivates.
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