Xerox Phaser 840 Service Manual page 276

XII False Jam Message "Media Jam - Remove
Lower Tray to Clear"
ADDITIONAL CLUES
1.
No paper present in
paper path.
Notes
260 Phaser 840/850/860/8200 Color Printer - Service Manual
PROBABLE ROOT CAUSE
A. Lower Tray Assembly's
paper pick flag is hung up.
C. Lower Tray Assembly
fuse in power control
board.
D. Damaged Lower Tray
Assembly connector
located in back left corner
of printer.
ACTIONS (follow in order)
1A.See SF152. Locate the flag on
the far left end of the Lower Tray
Assembly's feed roller shaft.
Toggle the flag and make sure it
rotates freely.
1B.See SF152. Cycle the printer's
power (a resettable fuse is in
840 printers with s/n B9B1458
and above and all 850 printers).
If serial number is below
B9B1458 (840), replace the
power control board with -01 or
higher version board.
1C. See SF152. Replace Lower
Tray Assembly connector inside
printer.