Xerox Phaser 8400 Service Manual page 166

Paper Lead Edge Times
Paper is picked and moved through either simplex or duplex paper path to determine leading
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
Common
0 Tray
1 Paper Size
Tray 4 Pick
2 Tray 4 Pick Interval
(us)
3 Tray 4 Transport
Interval (us)
4 Tray 3 Transport
Interval (us)
Tray 3 Pick
2 Unused
3 Tray 3 Pick Interval
(us)
4 Tray 3 Transport
Interval (us)
Tray 2 Pick
2 Unused
3 Unused
4-26
Typical Typical
Value Value
(8400) (8500/
8550)
Phaser 8400/8500/8550 Color Printer
Actions
Reports the tray from which the
test paper was picked
Reports the size of the picked
paper.
Reports the interval from the time
the engine software is
commanded to start the tray 4
pick process until the Tray 4 Pick
sensor activates.
Reports the interval from the Tray
4 Pick sensor activation until the
Tray 3 Pick sensor activates.
Reports the interval from the Tray
3 Pick sensor activation until the
Deskew sensor activates.
Reports the interval from the time
the engine software is
commanded to start the tray 3
pick process until the Tray 3 Pick
sensor activates.
Reports the interval from the Tray
3 Pick sensor activation until the
Deskew sensor activates.