Canon MP-C635 user manual Up the telephone

Problem	Cause	Solution
The MultiPASS does	The MultiPASS may not	For the MultiPASS to switch
not switch automatically	be in Fax/Tel mode.	automatically between
between telephone and		telephone and fax reception,
fax transmissions		the Receive mode must be
		set to Fax/Tel mode.

There may be a document in memory.

An error may have occurred during reception.

The sheet feeder may be empty.

The sending fax may not send the CNG signal that tells the MultiPASS that the incoming signal is a fax.

Make sure you have printed out any documents in memory.

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

Make sure paper is loaded in the sheet feeder.

Some fax units cannot send the CNG signal that tells your MultiPASS the incoming signal is from a fax. In such cases, you will have to receive the document manually.

Cannot receive a	You may have pressed
document manually	START/COPY after hanging
	up the telephone.

Always press START/COPY before hanging up the telephone. Do not press START/COPY after you hang up the telephone; this will disconnect the call.

Troubleshooting

Print quality is poor	You may not be using the	Be sure you are using paper
	correct type of paper.	that meets the paper
		requirements for the
		MultiPASS (see page A-1).

The print head may need to be cleaned.

The sending party may be having a problem.

Error correction (ECM) may be disabled.

Clean the print head (see page 7-8).

Make a copy on your MultiPASS. If the image is OK, then your MultiPASS is operating properly. Contact the other party and have them check their machine.

Make sure Error correction (ECM) is set to on in the Advanced Receive fax panel of the MultiPASS Fax Setup Utility (see page 3-9).

Chapter 8 Troubleshooting 8-25