Phaser 6128MFP Service Manual 3-139
Error Messages and Codes
Target Fax Connect Errors
The Fax was unable to connect to the receiving Fax after dialing. This 
troubleshooting procedure applies to these errors.
Applicable Errors
• 033-752: Target Fax Busy Error
• 034-799: Fax Number Error
• 035-746: No Dial Tone Error 
Initial Actions
• Cycle printer power.
• If the problem persists, follow the procedure below.
Troubleshooting Procedure Table 
Step Actions and Questions Yes No
1 Check the system firmware. 
Is the system firmware current?
Reseat 
connections to 
the I/P Board, 
then go to step 
2.
Reload system 
firmware.
2 Cycle system power.
Does the error persist?
Replace the Fax 
Board 
(page 8-47), 
then go to step 
3.
Complete.
3 Cycle system power.
Does the error persist?
Replace the I/P 
Board 
(page 8-41)
Complete.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack Map References
■ Image Processor Board, PL10.6.6
“Imaging” on page 10-24
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1 Is the target Fax number correct? Go to step 2. Manually dial 
the number.