SC No. Type Error Name/Error Condition/Major Cause/Solution
SC503-01 B 3rd Tray Lift Error (Paper Feed Unit PB3150 (D694))
• Lift motor ascent error detection
During tray initialization (upper limit not detected/lower limit
detection), the tray base plate is raised to check the tray base plate
position, and the limit sensor is not detected although a
predetermined time elapsed, for 3 times consecutively.
(Up to 2 times consecutively, the bank transmits a "tray set
incorrectly" to the main machine.)
• Lift motor error/connector missing
• Limit sensor error/connector missing
• Harness broken
• Bank control board defective
• Foreign object, such as paper scrap, is caught between the paper
feed tray and the tray lift motor
• Paper set incorrectly
Remove the jammed paper or slip of paper from the tray, and check if the
SC occurs by turning the main power OFF then ON. If the SC occurs
again, do the following steps. Check if the SC reoccurs by cycling the
power after each step.
1. Check if all connectors in Tray 3 are connected securely. Reconnect
the connectors if they are disconnected, or loose.
2. Check the harness in Tray 3. Replace the harnesses if it is
disconnected, or damaged.
3. Check if the motor runs, sensors turn OFF/ON, has no overloads,
and is properly driven. Replace the parts if there are any defects.
4. Check if there are any signs of a short circuit. Replace the parts if
there are any defects.
SC503-02 B 3rd Tray Descent Error (Paper Feed Unit PB3150 (D694))
6. Troubleshooting
896
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