Canon FAX-B840 User Manual

Also see for FAX-B820: User guide Service manual

Contents

60Faxing problemsSending problems❏ You cannot send a document.The BJ cartridge may not be installed properly.• Make sure the BJ cartridge is installed properly. Do not remove a used BJ cartridge except to replace it with a new one.The fax may have overheated.• Unplug the fax and let it cool for several minutes. Then plug it back in and try sending again.The fax may not be set for the type of telephone line in use (pulse/tone).• Make sure the fax is set for the correct telephone line type (see p. 12).The document may not have been loaded correctly into the document tray.• Remove the document, stack it if necessary, and load it into the document tray correctly (see p. 24).• Make sure the printer cover is closed.The one-touch speed dialling button or coded speed dialling code you entered may not be registered for thefeature you want to use.• Check the one-touch speed dialling button or coded speed dialling code and make sure it is registered correctly (see pp. 19, 20).You dialled or have been provided with an incorrect number.• Dial the number again, or check that you have the correct number.The receiving party’s fax machine may be out of paper.• Call the receiving party and ask them to make sure paper is loaded in their fax machine.There may be other documents being sent from memory.• Allow time for those documents to finish sending.An error may have occurred during sending.• Print an activity report and check for an error (see p. 54).The telephone line may not be working properly.• Make sure there is a dial tone when you press [Hook] or when you lift the handset. If there is no dial tone, contact your localtelephone company.The receiving fax machine may not be a G3 fax machine.• Make sure the receiving fax machine is compatible with the fax (which is a G3 fax machine).❏ Documents sent from the fax are spotted or dirty.The receiving fax machine may not be working properly.• Check the fax by making a copy (see p. 25). If the copy is clear, the problem may be in the receiving fax machine. If the copy isspotted or dirty, clean the scanner components (see p. 57).The document may not have been loaded correctly into the document tray.• Remove the document, stack it if necessary, and load it into the document tray correctly (see p. 24).❏ Cannot send using Error Correction Mode (ECM).The receiving party’s fax machine may not support ECM.• If the receiving party’s fax machine does not support ECM, then the document is sent in normal mode without error checking.ECM may be disabled.• Make sure ECM is on (see ECM TX, p. 51).❏ Errors occur frequently while sending.The telephone lines may be in poor condition, or you may have a bad connection.• Lower the transmission speed (see TX START SPEED, p. 52).