Troubleshooting and routine maintenance

Telephone line or connections

Difficulties

Suggestions

 

Dialing does not work.

Check for a dial tone.

 

 

 

 

 

Change Tone/Pulse setting. (See the Quick Setup Guide.) (Canada only)

 

 

Check all line cord connections.

 

 

 

 

 

Check that the machine is plugged in and switched on.

C

 

 

 

Send a manual fax by pressing Hook or by lifting the handset of an external

 

telephone and dialing the number. Wait to hear fax receiving tones before

 

 

pressing Black Start or Color Start.

 

 

 

 

The machine does not answer

Make sure the machine is in the correct receive mode for your setup. (See

 

when called.

Receiving a fax on page 44.) Check for a dial tone. If possible, call your machine

 

 

to hear it answer. If there is still no answer, check the telephone line cord

 

 

connection. If you do not hear ringing when you call your machine, ask your

 

 

telephone company to check the line.

 

 

 

 

Sending faxes

 

 

 

 

 

Difficulties

Suggestions

 

Poor sending quality.

Try changing your resolution to Fine or S.Fine. Make a copy to check your

 

 

machine’s scanner operation. If the copy quality is not good, clean the scanner.

 

 

(See Cleaning the scanner on page 153.)

 

 

 

 

Transmission Verification Report

There is probably temporary noise or static on the line. Try sending the fax again.

 

says ‘RESULT:NG’.

If you are sending a PC Fax message and get ‘RESULT:NG’ on the Transmission

 

 

Verification Report, your machine may be out of memory. To free up extra

 

 

memory, you can turn off fax storage (see Turning off remote fax

 

 

options on page 68), print fax messages in memory (see Printing a fax from the

 

 

memory on page 49) or cancel a delayed fax or polling job (see Checking and

 

 

canceling waiting jobs on page 42). If the problem continues, ask the telephone

 

 

company to check your telephone line.

 

 

 

 

 

If you often get transmission errors due to possible interference on the telephone

 

 

line, try changing the Compatibility setting to Basic(for VoIP). (See

 

 

Telephone line interference on page 132.)

 

Vertical black lines when sending.

Black vertical lines on faxes you send are typically caused by dirt or correction fluid

 

 

on the glass strip. (See Cleaning the scanner on page 153.)

 

 

 

 

Handling incoming calls

 

 

 

 

 

Difficulties

Suggestions

 

The machine ‘Hears’ a voice as a

If Easy Receive is set to on, your machine is more sensitive to sounds. It may

 

CNG Tone.

mistakenly interpret certain voices or music on the line as a fax machine calling

 

 

and respond with fax receiving tones. Deactivate the machine by pressing

 

 

Stop/Exit. Try avoiding this problem by turning Easy Receive to off. (See Easy

 

 

receive on page 47.)

 

 

 

 

Sending a Fax Call to the machine.

If you answered on an external or extension telephone, press your Fax Receive

 

 

Code [default setting is (l 51)]. When your machine answers, hang up.

 

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Brother MFC-9840CDW manual Telephone line or connections, Sending faxes, Handling incoming calls, 115