Ricoh D124-17 Service Manual page 600

6. Troubleshooting
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• Feeler cannot be detected because it is out of position (loose, broken,
defective, or blocked by an obstruction)
• Air release solenoid blocked
• Maintenance unit defective
• Print head ink tank defective
• Air release solenoid defective
D Head 1: Nozzle or Filter Clogged (2HT System)
D Head 2: Nozzle or Filter Clogged (2HT System)
D Head 3: Nozzle or Filter Clogged (2HT System)
D Head 4: Nozzle or Filter Clogged (2HT System)
D Head 5: Nozzle or Filter Clogged (2HT System)
D Head Tanks 4 and 5: Nozzle or Filter Clogged (2HT System)
Nozzle or filter clogged (or both clogged). A color nozzle or filter is clogged
• Nozzle check
• Nozzle cleaning
• Nozzle flushing
D Insufficient suction
Nozzle or filter, or both nozzle and filter clogged. Insufficient suction (1HT
System) to perform maintenance and solve the problem.
• Nozzle check
• Nozzle cleaning
• Nozzle flushing
• Maintenance unit defective
D Head 1: Ink Level Feeler Error 1
D Head 2: Ink Level Feeler Error 1
D Head 3: Ink Level Feeler Error 1
D Head 4: Ink Level Feeler Error 1
D Head 5: Ink Level Feeler Error 1