Canon MP-C635 user manual Adf

Problem Cause Solution

Images on faxes	The receiving fax machine may
received from the	not be working properly.
MultiPASS are
spotted or dirty
	The document may not be
	properly inserted in the
	ADF.

Check the MultiPASS by making a copy. If the copy is clear, the problem may be in the receiving fax machine.

Remove the document and feed it correctly into the ADF (see page 1-14).

Cannot send or receive using Error Correction Mode (ECM)

The other party’s fax may not support ECM.

Some fax units do not support ECM transmission. If the other party’s fax does not support ECM trans- mission, then the document is sent in the normal mode without error checking.

Errors occur frequently	The phone line may be in
while sending or receiving	poor condition, or you may
	have a poor connection.
	The sending fax machine may
	not be functioning properly.

Lower the transmission speed (see pages 3-5 and 3-9).

The sending fax machine usually determines the fax’s quality. Call the sender and have them make sure the top cover and scanning glass on their fax machine are clean.

Cannot receive a	The MultiPASS may not be
fax automatically	set to receive automatically.
	The MultiPASS may have a
	document stored in memory.
	An error may have occurred
	during reception.
	The sheet feeder may be
	empty.
	The telephone line may not
	be connected properly.
	The MultiPASS is printing
	a document.

To receive faxes automatically, the Receive mode must be Fax Only or Fax/Tel mode.

Print out any document stored in memory (see page 5-5).

Check the LCD for an error message (see page 8-10).

Make sure paper is loaded in the sheet feeder.

Make sure all phone line connections are secure.

The incoming fax is stored in memory and will print when the print job is complete.

8-24 Troubleshooting Chapter 8