3-120 Phaser 6128MFP Service Manual
Error Messages and Codes
SMB Errors
SMB Login Error
SMB login failed. This troubleshooting procedure applies to these errors.
Applicable Errors
• 031-521: SMB Login Error
• 031-522: SMB Login Error
Initial Actions
• Check network connectivity.
• Check administrative access permissions.
• Cycle printer power.
• If the problem persists, follow the procedure below.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack Map References
■ Image Processor Board, PL10.6.6
Troubleshooting Procedure Table 
Step Actions and Questions Yes No
1 Check the scan setting: Default 
Settings> Scan > Scan Defaults> 
Scan to Network.
Are the network settings correct?
Go to step 2. Set to 
Computer.
2 Check the network connection using 
ping command.
Is the printer and computer 
connected to the network?
Go to step 3. Connect the 
printer to the 
network.
3 Check the Image Processor Board 
installation.
Does the error persist when 
connecting to the server?
Replace the I/P 
Board 
(page 8-41).
Complete.