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Tray x Paper Low
adequate paper in the tray
FRU
Paper low switch
1
Paper low switch cable
High-capacity feeder option
control board
Excessive noise or vibration
FRU
DC motor assembly
1
Idler pulley
2
DC motor assembly
Drive pulley
3
Motor drive belt
4
tray drive belt
High-capacity output stacker service check
Service tip: The majority of the mechanical components can be observed during operation by removing the left,
right, and front covers. The high-capacity output stacker option functions without the covers installed.
Determine which paper path stacker assembly is not functioning properly.
Make sure the option(s) are installed correctly and the machine is configured correctly before attempting to
service the high-capacity output stacker option.
See
"High-capacity output stacker board" on page 5-8
upper and lower units.
Problems with excessive static electricity buildup
FRU
Front Cover Assembly
1
displays when the high-capacity feeder input tray is full or has
Action
Run the sensor diagnostics for tray x (x=the number that represents
the high-capacity input tray).
If the test fails, check the voltage at J3-1 (gray). The voltage
measures approximately +24 V dc. If incorrect, disconnect the paper
low switch cable from J3 and measure the voltage again on J3-1. If
incorrect, replace the high-capacity feeder option control board. If
correct, check the cable for a short between pins 1 and 2 on the
cable. 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.
Action
Make sure all the motor plate mounting screws are tight.
Make sure the idler pulley is not binding on the pulley shaft. Check
the pulley for wear. Check the idler pulley shaft on the motor
mounting plate for damage or contamination.
Check the drive pulley for wear, binds or damage to the pulley or
pulley shaft. Make sure the pulley turns freely on the pulley shaft.
Check the DC motor drive belt for damage. Make sure the belt is
tracking correctly on the drive pulley, idler pulley, and motor pulley.
Check the tray drive belt for damage. Make sure the belt is tracking
correctly on the lower section of the drive pulley and lead screw
pulleys.
Action
Check the front cover assembly to make sure the ESD brush ground
lead is firmly attached to the high-capacity option. Also check to
make sure the ESD brush is not loose or damaged.
to identify the correct jumper locations at J6 for the
Diagnostic information
2-101
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