SC No.
Level
Error Name/Error Condition/Major Cause/Solution
SC547-01
D
Zero-crossing error (adhered relay contact)
When the fusing relay is in an OFF state, a "zero-crossing interrupt
request" occurs in 50 ms.
Damaged fusing relay (adhered contact)
• Turn the main power OFF and then ON.
• Replace the harness.
• Replace the PC board.
• Replace the PSU.
SC547-02
D
Zero-crossing error (bad relay contact)
If a "zero-crossing interrupt request" does not occur when the fusing relay
is in an ON state, an error results.
• Damaged fusing relay (open contact)
• Failed fusing relay drive circuit
• PSU fuse (24VS) blown
• Turn the main power OFF and then ON.
• Replace the harness.
• Replace the Engine Board.
• Replace the PSU.
• Replace the fuse.
SC547-03
D
Zero-crossing error (low frequency error)
The number of zero-crossing interrupts does not reach a certain value in
500 ms.
The frequency of the commercial power supply line is unstable.
• Turn the main power OFF and then ON.
• Check the commercial power supply line.
• Replace the harness.
• Replace the Engine Board.
• Replace the PSU.
6. Troubleshooting
130
Summary of Contents for Aficio MP 171
Page 1: ...Model Gim P1a Machine Code M171 Field Service Manual September 2014 ...
Page 2: ......
Page 14: ...12 ...
Page 34: ...3 Preventive Maintenance 32 ...
Page 48: ...3 OPU Board x 7 4 Replacement and Adjustment 46 ...
Page 59: ...2 Hold the grip to pull the toner cartridge A out Toner Cartridge 57 ...
Page 105: ...2 Rear Cover Switch A x 1 Hook Electrical Components 103 ...
Page 106: ...4 Replacement and Adjustment 104 ...
Page 120: ...5 System Maintenance 118 ...
Page 166: ...MEMO 164 EN ...
Page 167: ...Model Gim P1a Machine Code M171 Appendices September 2014 ...
Page 168: ......
Page 186: ...2 Appendices Preventive Maintenance Tables 18 ...
Page 259: ...MEMO 91 ...
Page 260: ...MEMO 92 EN ...