Diagnostic information 2-53
5056-XXX
High-capacity feeder (HCF) service check
FRU Action
1 • Paper size sensors
1and 2
• Residual paper sensors
1—4
• Paper level sensor
• Lower limit switch
• Docking switch
• Upper limit
• Paper sensor switch
• Paper feed sensor
Go to “Sensor/Sw Test” on page 3-14, and perform the LED
sensor test. You can block each sensor to verify if it is working
properly. Replace the failing sensor.
2
• Tray motor
• Paper feed motor
• HCPF power supply
• Pickup solenoid
• Paper feed roller
• Transfer roller
• Paper feed clutch
• Tray drive belt
Be sure that all rollers, gears, and belts are in good working order.
Replace as necessary.
3
• Paper feed clutch
• Pickup solenoid
• HCF power supply
• Paper feed motor
• Tray motor
• HCPF board
Go to “Maintenance Mode” on page 3-43, and run the tests.
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