Canon fax-phone b740 Manuale
Chapter 13
Troubleshooting
13-17
T
roub
leshooting
The BJ cartridge or ink tanks may not be installed properly.
• Make sure the BJ cartridge and ink tanks are installed properly. (
• Make sure the BJ cartridge and ink tanks are installed properly. (
The BJ cartridge print head may need cleaning.
• Refer to the flow chart (
• Refer to the flow chart (
The BJ cartridge or ink tanks may need to be replaced.
• Determine if the problem is with the BJ cartridge or ink tanks (
• Determine if the problem is with the BJ cartridge or ink tanks (
■ Fax images print blotched or uneven.
The telephone lines may be in poor condition, or you may have a bad connection.
• Error Correction Mode (ECM) sending/receiving should eliminate such problems.
• Error Correction Mode (ECM) sending/receiving should eliminate such problems.
However, if the telephone lines are in poor condition, you may have to try again.
The sending fax machine may not be functioning properly.
• The sending fax machine usually determines the fax’s quality. Call the sender and
• The sending fax machine usually determines the fax’s quality. Call the sender and
have them make sure the top cover and scanning glass of their fax machine are
clean.
clean.
■ Cannot receive using Error Correction Mode (ECM).
The other party’s fax machine may not support ECM.
• Some fax machines do not support ECM. If the other party’s fax machine does not
• Some fax machines do not support ECM. If the other party’s fax machine does not
support ECM, then the document is received in normal mode without error checking.
ECM may be disabled.
• Make sure ECM is on. (
• Make sure ECM is on. (
■ Errors occur frequently while receiving.
The telephone lines may be in poor condition, or you may have a bad connection.
• Lower the reception speed. (
• Lower the reception speed. (
The sending fax machine may not be functioning properly.
• Call the sender and have them check that their fax machine is functioning properly.
• Call the sender and have them check that their fax machine is functioning properly.
Telephone Problems
■ You cannot dial.
The telephone line may not be connected properly.
• Make sure all line connections are secure. (
• Make sure all line connections are secure. (
The power cord may not be plugged in securely.
• Check that the power cord is plugged securely into the copier/fax and into the wall
• Check that the power cord is plugged securely into the copier/fax and into the wall
plugged in and turned on.
The copier/fax may not be set for the type of telephone line in use (pulse/tone).
• If you have a pulse line, make sure the copier/fax is set for pulse dialing. (
• If you have a pulse line, make sure the copier/fax is set for pulse dialing. (