Canon C70 User Manual

Page 327

Chapter 13

Troubleshooting

13-19

oub

leshooting

There may be other documents being sent from memory.
❏ Allow time for the current document to finish sending.

An error may have occurred during sending.
❏ Print the Activity Report and check for an error. (

1 p. 11-5)

The telephone line may not be working properly.
❏ Make sure there is a dial tone when you lift the handset or the

handset of the telephone or extension phone. If not, contact your
local telephone company.

The receiving fax machine may not be a G3 fax machine.
❏ Make sure the receiving fax machine is compatible with the

MultiPASS C70 (which is a G3 fax machine).

Images on received faxes from the MultiPASS C70 are spotted or
dirty.

The receiving fax machine may not be working properly.
❏ Check the MultiPASS C70 by making a copy (

1 Chapter 10, Making

Copies). If the copy is clear, the problem may be in the receiving fax
machine.

The document may not have been fed correctly into the Automatic
Document Feeder (ADF).
❏ Remove the document, stack it if necessary, and feed it into the

Automatic Document Feeder (ADF) correctly. (

1 pp. 4-6, 4-11)

Cannot send 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 support ECM, then the document is sent in
normal mode without error checking.

ECM may be disabled.
❏ Make sure ECM is on. (

ECM TX

, pp. 14-9, 14-10)

Errors occur frequently while sending.

The telephone lines may be in poor condition, or you may have a bad
connection.
❏ Lower the transmission speed. (

TX START SPEED

, pp. 14-15, 14-16)