The header information for outgoing faxes is not registered.
Solutions
Select Settings > General Settings > Fax Settings > Basic Settings > Header and set up the header
information. Some fax machines automatically reject incoming faxes that do not include header
information.
Your caller ID is blocked.
Solutions
Contact your telecommunication company to unblock your caller ID. Some phones or fax machines
automatically reject anonymous calls.
The recipient's fax number is wrong.
Solutions
Check that the recipient's number registered in your contacts list or that you entered directly using the
keypad is correct. Or, check with the recipient that the fax number is correct.
The recipient's fax machine is not ready to receive faxes.
Solutions
Ask the recipient if the recipient's fax machine is ready to receive a fax.
The data being sent is too large.
Solutions
You can send faxes at a smaller data size using one of the following methods.
❏ When you send the fax in monochrome, enable Direct Send in Fax > Fax Settings > Fax Send
Settings.
“Sending Many Pages of a Monochrome Document (Direct Send)” on page 105
❏ Using the connected phone
“Sending Faxes Dialing from the External Phone Device” on page 105
❏ Separating the originals
Cannot Receive Faxes
e following causes can be considered.
Subscribing to a call forwarding service.
Solutions
If you have subscribed to a call forwarding service, the printer may not be able to receive faxes. Contact
the service provider.
The Receive Mode is set to Manual while an external phone device is connected to the
printer.
Solutions
If an external phone device is connected to the printer and is sharing a phone line with the printer, select
Settings >General Settings > Fax Settings > Basic Settings, and then set Receive Mode to Auto.
Solving Problems
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The Printer Does Not Work as Expected
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Cannot Send or Receive Faxes
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