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2-71 4059 Service Manual
4059-XXX
Tray X Empty message displays. Tray does not respond to loading
paper. No response from the front door switch.
Tray X Paper Low Message displays when the high capacity feeder
input tray is full or has adequate paper in the tray.
FRU Action
1 High Capacity Feeder
Option Control Board
Check the voltage on the board at
J4-2 (green). The voltage measures
approximately +5 V dc. If incorrect,
disconnect the cable atJ4 and check
the voltage again. If incorrect,
replace the high capacity feeder
option control board.
2 Elevator Top Optical
Sensor Cable
Elevator Top Optical
Sensor
Check the continuity of the sensor
cable. If incorrect, replace the cable.
If correct, replace the top optical
sensor assembly.
FRU Action
1 Paper Low Switch
Paper Low Switch Cable
High Capacity Feeder
Option Control Board
Run the sensor diagnosticsfor tray X
(X=the number that represents the
high capacity input tray). If the test
fails, check the voltage at J3-1
(grey). The voltage measures
approximately +24 V dc. If incorrect,
disconnect the paper low switch
cablefromJ3andmeasurethe
voltage again on J3-1. If incorrect,
replace the high capacity feeder
option control board. If correct,
check the cable for a short between
pins1and2onthecable.If
incorrect, replace the cable. If
correct, check the switch for a bent
or deformed actuator lever or
defective switch. If incorrect, replace
the switch.