E4722 故障描述
The HPRO drum has stopped.(HPRO drum operation detection has failed to switch ON/OFF for 15 seconds or more.)
故障原因
• HPRO drive motor damaged, or poor connection.
• HPRO monitor damaged, or poor connection.
• HPRO unit position misaligned.
建议
• Check cable bundle connections and operation: if damaged,replace.
• Check cable bundle connections and operation: if damaged,replace.
• Adjust the HPRO unit position.
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