Canon MF5770 - Manual (Page 52)

7-11
T
roub
leshooting
7
Errors occur frequently while receiving.
Q Are the telephone lines in proper condition? Or do you have a good connection?
A Lower the reception speed. (See <4. RX START SPEED> of "Menu Descriptions," on p. 8-2.)
Q Is the sending fax machine functioning properly?
A Call the sender and have them check that their fax machine is functioning properly.
Telephone Problems
You cannot dial.
Q Is the telephone line connected properly?
A Make sure all line connections are secure. (See "Connect telephone cable," in the Set-Up Sheet.)
Q Is the machine set for the correct telephone line type (pulse/tone)?
A Make sure the machine is set for the correct telephone line type. (See "Setting the Telephone Line
Type," on p. 2-3.)
The telephone disconnects while you are talking.
Q Is the telephone line connected in securely?
A Check that the telephone cables are connected securely to the jacks on the machine, the telephone
jack on your wall and the jack on your telephone. (See "Connect telephone cable," in the Set-Up
Sheet.)