imageCLASS MF4580dw Support

FAQs & troubleshooting

If You Cannot Receive a Fax

Content Id: 8201293900

Issue

If you cannot receive a fax.

Cause and solution

See the following sections.

Cause and solution

Cannot receive a fax automatically.

Set the receive mode to one of the following.

⋖Fax/Tel Auto Switch⋗

⋖Auto⋗

⋖Answer⋗

[ Selecting the Receive Mode ]

If you set the receive mode to ⋖Answer⋗, ensure that an external telephone with a built-in answering machine is connected to the machine, that it is turned on, and that with an answering message has been recorded.

Print, send, or delete any jobs stored in the memory.

Cause and solution

Telephone and fax calls cannot be switched automatically.

Refer to the following section:

Is the machine set to switch automatically between telephone and fax calls?

Set the receive mode to ⋖Fax/Tel Auto Switch⋗ or ⋖Answer⋗.

[ Selecting the Receive Mode ]

If you have set receive mode to ⋖Answer⋗, ensure that an external telephone with built-in answering machine is connected to the machine, that it is turned on, and that an answering message has been recorded.

Is the setting time for ⋖Ring Start Time⋗ short?

If the setting time is too short, incoming faxes may be treated as incoming phone calls. Set ⋖Ring Start Time⋗ to a longer setting.

For details, see "Detailed Settings for the Fax/Tel Auto Switch Mode" in the e-Manual.

Is the line condition of the sender's machine good?Change the ⋖RX Start Speed⋗.

Change the ⋖RX Start Speed⋗.

For details, see "RX Start Speed" in the e-Manual.

Is the memory full?

Print, send, or delete any jobs stored in the memory.

Can the sender's machine send a switching signal, to notify your machine that the transmission is a fax?

Some machines cannot send this signal. In these cases, receive the fax manually.

Cause and solution

Cannot receive a fax manually.

Ensure the machine is set to receive manually.

[ Selecting the Receive Mode ]

Select ⋖Start Receiving⋗ and press [OK] before putting down the handset or entering the remote receive ID. Otherwise, you will disconnect the call.

Remove any documents from the feeder and try to receive the fax manually.

If [ ] (Start) is pressed while a document is loaded in the feeder, the document will be sent manually.

Cause and solution

Cannot receive a fax using the optical line.

Using the optical line is not guaranteed for machine operation. If the provider guarantees the following two points, however, you can use the optical line without Canon's guarantee.

Telephone speech quality equivalent to general lines

"Super G3" is guaranteed for the machine operation.

* For the specifications of your line, contact your telephone carrier.

The optical line performs data communication in packet units. Sounds are only intermittent even if the packets are missing temporarily. However, fax communication may miss fax data due to missing packets, resulting in communication error. If the error occurs, change the ⋖RX Start Speed⋗.

For details, see "RX Start Speed" in the e-Manual.

If the problem is not solved after the change, contact the provider you are using.

Cause and solution

Faxes cannot be printed, or images on the faxes are spotted or uneven.

See the following section:

Is the appropriate paper loaded in the machine?

Load paper that meets the requirements for use.

[ Paper Handling ]

Change the setting for ⋖Paper Size⋗.

[ Setting a Paper Size and Type ]

Have you removed the sealing tape from the toner cartridge?

Remove sealing tape from the toner cartridge.

[ Replacing the Toner Cartridge ]

Is the toner cartridge installed properly?

Install the toner cartridge properly.

[ Replacing the Toner Cartridge ]

Is there sufficient toner in the toner cartridge?

To view the solution, refer to the following.

[ Replacing the Toner Cartridge ]

Is the sender's machine functioning properly?

Ask the sender to ensure that the scanning components of the machine are clean.

Cause and solution

Part of a received fax is cut off.

Adjust the paper guides of the paper cassette to fit the size of the paper.

Specify the correct paper size for the paper cassette.

Set ⋖Reduce RX Size⋗ to ⋖On⋗ before adjustment.

For details, see "Reduce RX Size" in the e-Manual.

Cause and solution

Receipt speed is too slow.

Contact the sender and verify that the resolution of the sender's machine has been set properly.

Cause and solution

Cannot get documents from information services.

Ensure that the telephone line type is set to tone dialing. If the type is set to the rotary pulse, press [ ] (Tone) to switch to tone dialing.

Follow announcement from information services.

Cause and solution

Errors occur frequently while receiving faxes.

Ask the sender to check that his or her machine is functioning properly.

Cause and solution

Cannot print received faxes on both sides of the paper.

Verify the settings for 2-sided printing.

2-Sided Printing

Use this option to save paper by printing on both sides of each sheet.

How to display the settings

[ ] (Menu) -⋗ ⋖Fax RX Settings⋗ -⋗ ⋖RX Function Settings⋗ -⋗ ⋖2-Sided Printing⋗

Settings

Off(Default setting): Print on only one side of paper.

On: Print on both sides of paper.

Cause and solution

The external telephone does not ring when receiving faxes.

If the external telephone does not ring when the fax receive mode is set to ⋖Fax/Tel Auto Switch⋗, set ⋖Public Line Connection⋗ settings to ⋖Adapter 1⋗ or ⋖Adapter 2⋗.

Public Line Connection

The following problems may occur when fax receive mode is selected to ⋖Fax/Tel Auto Switch⋗.

- The external telephone does not ring.

- Cannot make a call using the external telephone.

You can solve these problems by changing this setting.

How to display the settings

[ ] (Menu) -⋗ ⋖Fax TX Settings⋗ -⋗ ⋖Basic Settings⋗ -⋗ ⋖Public Line Connection⋗

Settings

Direct (Default setting): Use this setting under normal conditions.

Adapter: 1 Select this option if a problem occurs when ⋖Direct⋗ is selected.

Adapter: 2 Select this option if the problem continues when ⋖Adapter 1⋗ is selected.

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