An error was detected on the wireless
LAN card.
• Wireless LAN card defective
• Wireless LAN card connection incorrect
856
B
Wireless LAN (802.11b)error 4
An error was detected on the wireless
LAN card.
• Wireless LAN card defective
• PCI connector (to the mother board) loose
857
B
USB I/F Error
The USB driver is not stable and caused
an error.
• Bad USB card connection
• Replace the controller board
860
B
HDD startup error at power on
HDD is connected but a driver error is
detected.
The driver does not respond with the
status of the HDD within 30 s.
• HDD is not initialized
• Level data is corrupted
• HDD is defective
861
B
HDD re-try failure
At power on with the HDD detected,
power supply to the HDD is interrupt-
ed, after the HDD is awakened from the
sleep mode, the HDD is not ready with-
in 30 s.
• Harness between HDD and board discon-
nected, defective
• HDD power connector disconnected
• HDD defective
• Controller board defective
863
D
HDD data read failure
The data written to the HDD cannot be
read normally, due to bad sectors gen-
erated during operation.
• HDD defective
Note: If the bad sectors are generated at the
image partition, the bad sector information is
written to NVRAM, and the next time the HDD
is accessed, these bad sectors will not be ac-
cessed for read/write operation.
864
D
HDD data CRC error
4. Troubleshooting
166
4
Summary of Contents for A-P4
Page 1: ...Model A P4 Machine Code G147 SERVICE MANUAL May 12th 2006 Subject to change...
Page 27: ...Installation Flowchart 1 Installation 26 1...
Page 59: ...3 Reattach the application cover x1 1 Installation 58 1...
Page 65: ...2 Preventive Maintenance 64 2...
Page 72: ...Left Covers 1 Left upper cover A x4 2 Controller cover B x2 Covers and Common Procedures 71 3...
Page 82: ...Laser Unit 81 3...
Page 103: ...5 Cover C x2 6 Gear D x1 7 Lower paper feed unit E x2 x1 3 Replacement and Adjustment 102 3...
Page 128: ...Duplex Unit Duplex Cover Removal 1 Duplex unit cover A x4 Duplex Unit 127 3...
Page 181: ...4 Troubleshooting 180 4...
Page 289: ...Self Diagnostic Test Flow 5 Service Tables 288 5...
Page 306: ...Controller Block Diagram Board Layout 305 6...
Page 319: ...What Happens When a New Unit Is Detected 6 Details 318 6...
Page 367: ...6 Details 366 6...
Page 379: ...MEMO 378...
Page 380: ...MEMO 379...
Page 381: ...MEMO 380...