Canon MF5550 - Manual (Page 79)

Faxing Problems 7-9
T
roub
leshooting
7
Faxes do not print.
Q Is the cartridge installed properly?
A Make sure the cartridge is installed properly. For more information, see Chapter
8, "Maintenance," in the Basic Guide.
Q Is any toner left in the cartridge?
A Replace the cartridge with a new one. For more information, see Chapter 8,
"Maintenance," in the Basic Guide.
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 <4. TONER SUPPLY LOW> of
"Menu Descriptions," on p. 8-7.)
Q Is the correct paper loaded in the cassette?
A Make sure paper is loaded in the cassette. For more information, see Chapter
2, "Paper Handling," in the Basic Guide.
A Load the correct paper size or change in SETTINGS> of the Menu. For more information, see the following:
• Chapter 2, "Paper Handling," in the Basic Guide
• Chapter 5, "Copying," in the Basic Guide
Faxed images are blotched or uneven.
Q Are the telephone lines in proper condition? Or do you have a good connection?
A ECM (Error Correction Mode) for sending/receiving should eliminate such
problems. However, if the telephone lines are in poor condition, you may have to
try again. Then call the sender to resend the document.
Q Is the sending fax machine functioning properly?
A The sending fax machine usually determines the fax's quality. Call the sender
and have them make sure the scanning glass of their fax machine is clean.
Cannot receive a fax using ECM (Error Correction Mode).
Q Does the sending fax machine support ECM?
A If the sending fax machine does not support ECM, the document is received in
the normal mode without error checking.