HP LaserJet 3052 Service Manual - Page 280
T.30 protocol trace (HP LaserJet 3050 all-in-one and HP LaserJet 3055 all-in-one only)
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T.30 protocol trace (HP LaserJet 3050 all-in-one and HP LaserJet 3055 all-in-one only) Use a T.30 protocol trace report to troubleshoot fax transmission and receive issues. To print a T.30 protocol trace report 1. Press Menu. 2. Use the < or > button to select Service, and then press . 3. Use the < or > button to select Print T.30, and then press . 4. Use the < or > button to select Print report now, and then press . The product exits the menu settings and prints the reports. Send a fax from the product or receive a fax to the product from another fax machine. Print a T.30 trace report after the fax prints. The following are explanations of some of the report column headings: ● Date and Time identify when the fax begins. Match this information with the fax error log. ● Type is the type of fax activity: send or receive. ● Identification is the phone number to which a fax is sent. ● Result explains the status of the fax: ● "OK" means that the fax was successful. ● "Pending" faxes are in memory or are printing. ● For error codes and their meanings, see Table 6-6 Fax receive codes on page 261 and Table 6-7 Fax send codes on page 264. Fax error-correction mode (ECM) (HP LaserJet 3050 all-in-one and HP LaserJet 3055 all-in-one only) Normally, the product monitors the signals on the telephone line while it is sending or receiving a fax. If the product detects an error during the transmission and the error-correction mode is On, then the product can request that the portion of the fax be resent. The factory-set default for error-correction mode is On. To change the error-correction setting 1. Press Menu. 2. Use the < or > button to select Fax setup, and then press . 3. Use the < or > button to select All faxes, and then press . 4. Use the < or > button to select Error correction, and then press . 5. Use the < or > button to select On or Off, and then press to save the selection. 260 Chapter 6 Troubleshooting ENWW