HP Color LaserJet CM4730 Multifunction Printer series - Manual (Page 303)

Solve fax problems
For help solving fax problems, go to http://www.hp.com/go/mfpfaxaccessory300 .
You can also refer to the Analog Fax Accessory 300 Fax Guide and the Analog Fax Accessory 300
Send Fax Driver Guide, which are included on the MFP software CD.
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