Canon MF5770, MF5750 manual Troubleshooting

Models: MF5750 MF5770

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QDid the receiving fax machine answer within 55 seconds (after all automatic redialing attempts)?

AContact the other party and have them check their fax machine. For an overseas call, add pauses to the registered number. (See "Dialing an Overseas Number (With Pauses)," on p. 4-8.)

QIs the In Use/Memory indicator lighting?

AThe In Use/Memory indicator may light, which means the extension phone is busy. Please wait until the extension phone becomes free.

Faxes sent from the machine are spotted or dirty.

QIs the sending fax machine working properly?

ACheck the machine by making a copy. For more information, see Chapter 5, "Copying," in the User’s Guide.

If the copy is clear, the problem may be in the receiving fax machine. If the copy is spotted or dirty, clean the platen glass or the read area of the platen glass. For more information, see Chapter 8, "Maintenance," in the User’s Guide.

QIs the document loaded?

ARemove the document, stack it if necessary, and place it on the platen glass or load it in the ADF correctly. For more information, see Chapter 3, "Document Handling," in the User’s Guide.

Cannot send using ECM (Error Correction Mode).

QDoes the receiving fax machine support ECM?

AIf the receiving fax machine does not support ECM, the document is sent in the normal mode without error checking.

Errors occur frequently while sending.

QAre the telephone lines in proper condition? Or do you have a good connection?

ALower the transmission speed. (See <3. TX START SPEED> of "Menu Descriptions," on p. 8-2.)

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Troubleshooting

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Canon MF5770, MF5750 manual Troubleshooting