Service Call 622-691
SM 6-45 D255/D256/M281/M282
Troubleshooting
6.7 SERVICE CALL 622-691
6.7.1 SC600 (ENGINE: COMMUNICATION AND OTHERS)
SC No. Type Error Name/Error Condition/Major Cause/Solution
SC622-01 D Paper Feed Unit Communication Error (Tray 2)
A communication error is detected from the paper feed unit 2, 10
times consecutively.
 Paper feed tray 2 defective
 Connector disconnected or defective
 Main board defective
 IOB defective
 Paper feed tray 2 defective
Check the connection between the main machine and paper
feed tray 2.
 Connector disconnected or defective
Reconnect the following connector.
 IOB – Main Board connector
 Replace the main board.
 Replace the IOB.
SC No. Type Error Name/Error Condition/Major Cause/Solution
SC622-02 D Paper Feed Unit Communication Error (Tray 3)
A communication error is detected from the paper feed unit 3, 10
times consecutively.
 Paper feed tray 3 defective
 Main board defective
 IOB defective
Rev. 09/15/2016
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