Canon Fax L390 User Guide

Paper Feeding Problems
14-13
Troubleshooting14
Q
Does the cassette or multi-purpose feeder contain an appropriate quantity of sheets?
A
Make sure the paper stack in the cassette or the paper in the multi-purpose feeder does not exceed 
the capacity of the cassette or multi-purpose feeder. (See “Loading Paper,” on p. 4-3.)
A
Do not force the paper stack into the cassette or the paper into the multi-purpose feeder.
A
Load paper one by one in the multi-purpose feeder.
Q
Is only one type of paper loaded in...

Paper Feeding Problems
14-14
Troubleshooting14
Repeated paper jams occur.
Q
Is the proper paper loaded?
A
Check that the size, thickness and type of the paper you are using. (See “Print Media Requirements,” 
on p. 4-1.)
Q
Is the proper paper loaded correctly?
A
Be sure to fan the paper stack before loading it in the cassette. This keeps the sheets of paper from 
sticking together. 
Q
Is the output tray free of obstructions?
A
Do not place the delivered paper back on the output tray. (See “Face Down Paper...

Faxing Problems
14-15
Troubleshooting14
Faxing Problems
Sending Problems
You cannot send a fax.
Q
Is the machine overheated?
A
Unplug the machine and let it cool for approximate 3 minutes to 5 minutes. Then plug in the machine 
and try sending again.
Q
Did you connect the power cord to the machine just now?
A
Wait for a while. After connecting the power cord, the machine cannot scan documents immediately. 
Q
Is the machine set for the correct telephone line type (pulse/tone)?
A
Make sure the machine is...

Faxing Problems
14-16
Troubleshooting14
Q
Did an error occur during sending?
A
Print an ACTIVITY REPORT and check for an error. (See “Activity Repor t,” on p. 13-1.)
Q
Is the telephone line working properly?
A
Make sure there is a dial tone when you pick up the handset of the telephone connected to the 
machine. If there is no dial tone, contact your local telephone company.
Q
Is the receiving fax machine a G3 fax machine?
A
Make sure the receiving fax machine is compatible with the machine (which is a...

Faxing Problems
14-17
Troubleshooting14
Cannot send using ECM (Error Correction Mode).
Q
Does the receiving fax machine support ECM?
A
If the receiving fax machine does not support ECM, the document is sent in the normal mode without 
error checking.
Errors occur frequently while sending.
Q
Are the telephone lines in proper condition? Or do you have a good connection?
A
Lower the transmission speed. (See “3.TX START SPEED,” on p. 16-6.)
Receiving Problems
Cannot receive a fax automatically.
Q
Is the...

Faxing Problems
14-18
Troubleshooting14
The machine does not switch automatically between telephone and fax receptions.
Q
Is the machine set to switch automatically between telephone and fax receptions?
A
For the machine to switch automatically, the receive mode must be set to . (See Chapter 
7, “Receiving Faxes.”)
Confirm that an answering machine is connected to the machine and that it is turned on with an 
outgoing message properly recorded.
Q
Are you answering the call on a telephone connected to the...

Faxing Problems
14-19
Troubleshooting14
Q
Is any toner left in the cartridge?
A
Replace the cartridge with a new one. For more information, see “Installing/Replacing the Toner 
Cartridge,” on p. 2-18.
A
Select  in  in  of the Menu. With this 
setting, the machine will not store documents in the memory even if the toner has run out. 
(See “2.TONER SUPPLY LOW,” on p. 16-11.)
Q
Is the correct paper loaded in the cassette?
A
Make sure paper is loaded in the cassette. For more information, see Chapter 4,...

Telephone Problems
14-20
Troubleshooting14
Telephone Problems
You cannot dial.
Q
Is the telephone line connected properly?
A
Make sure all line connections are secure. (See “Connecting the Telephone Line,” on p. 2-8.)
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.3-5.)
The telephone disconnects while you are talking.
Q
Is the telephone line connected in securely?
A...

Copying Problems
14-21
Troubleshooting14
Copying Problems
The machine will not make a copy.
Q
Is the cartridge installed correctly?
A
Make sure the cartridge is installed correctly. (See “Installing/Replacing the Toner Cartridge,” on 
p. 2-18.)
Q
Is the sealing tape removed from the cartridge?
A
Remove the sealing tape from the cartridge. (See “Installing/Replacing the Toner Cartridge,” on 
p. 2-18.)
Q
Is the cassette inserted completely into the machine?
A
Insert the cassette as far as it will go. (See...

Print Quality Problems
14-22
Troubleshooting14
Print Quality Problems
The print quality is not what you expect; print is not clear, has missing dots or white streaks.
Q
Are the size, thickness and type of the paper you are using within the specifications of the machine?
A
Check that the paper you are using is supported by the specifications of the machine. (See “Print 
Media Requirements,” on p. 4-1.)
Q
Is the cartridge installed correctly?
A
Make sure the cartridge is installed correctly. (See...