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Diagnostic Information 2-66
4059-XXX
The elevator tray fails to stop at the correct position and continues
to drive into the bottom frame.
The elevator tray down button does not operate. The tray moves to
the upper position.
Service Tip: Open the high capacity feeder option front door and
check the black rubber bumper attached to the door switch spring.
Be sure the rubber button is centered and not touching the sides of
the hole or the switch will not function properly.
FRU Action
1 Lower Limit Switch
Lower Limit Switch Cable
Check continuity of the lower limit
switch. If incorrect, replace the
switch.Ifcorrect,checktheswitch
cable. If incorrect, replace the cable.
If correct, replace the high capacity
feeder option control board.
2 High Capacity Feeder
Control Board
Disconnect the lower limit switch
cable and check the voltage at J2-1
(orange). The voltage measures
approximately +5 V dc. If incorrect,
replace the high capacity feeder
option control board.
FRU Action
1 Lower Limit Switch
Lower Limit Switch Cable
High Capacity Feeder
Control Board
Check the lower limit switch to make
sure it is not closed (normally open).
If incorrect, replace the switch.
Check the lower limit switch cable for
a short between pins 1 and 2. If
incorrect, replace the cable. If
correct, replace the high capacity
feeder option control board.