What does error 350 in failed fax mean?

[lawros]

Attempted fax using HP Smart.  error message 350.

[Dragon-Fur]

@lawros 

Interesting -- Normally, HP Smart would default to using the Mobile Fax application -- no fax hardware.

Also, no Error code 350.

• HP Mobile Fax - Error Codes Troubleshooting

So, you must be using the printer's Fax hardware.

 Fax error codes and messages for HP printers and fax machines

344, 345, 346, 347, 348, 349 ECM, 350 ECM, 351 ECM, 352 ECM, 353 ECM, 354, 355: Multiple causes:

• Check for poor line conditions. Older phone lines, static on the line, power brownouts, or other power-related problems can cause communication failures. Call the telephone provider if line conditions fail to improve.

• Stop key was pressed on the receiving fax machine before the fax completed. Contact the person receiving the fax to see if they are cancelling the transmission. If not, send the fax again but at a slower transmission speed.

• A noise from call waiting service disrupted the call. Disable Error Correction Mode (ECM) if necessary.

Resource to help understand how to use / set / adjust Fax:

User Guide 

Read >> Chapter 8 - Fax - Starting on Page 81

ECM setting explained - Pages 85-86

Fax Speed - Pages 97-98

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References / Resources

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