Telephone line or connections; Handling incoming calls- Page 108

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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.

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 

Start

.

The machine does not answer 
when called.

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

Receiving a fax

 on page 39.) 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 glass

 on page 119.)

Transmission Verification Report 
says ‘RESULT:NG’.

There is probably temporary noise or static on the line. Try sending the fax again. 
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 61), print fax messages in memory (see 

Printing a fax from the memory

on page 43) or cancel a delayed fax or polling job (see 

Checking and canceling 

waiting jobs

 on page 38). 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)

(For 

MFC-7840W, 

Normal

 or 

Basic(for VoIP)

). (See 

Telephone line interference

on page 106.)

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 glass

 on page 119.)

Handling incoming calls

Difficulties

Suggestions

The machine ‘Hears’ a voice as a 
CNG Tone.

If Easy Receive is set to on, your machine is more sensitive to sounds. It may 
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 42.)

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.