Canon FAX-L800 User Manual page 301

Chapter 15
Is your document too light?
Press the CONTRAST button until DARKER is selected then try sending
again. (Q6-4)
Is the scanning glass on your fax clean?
Copy a document on your fax and see if the copy is streaked or dirty. If the
copy is streaked or dirty, clean the scanning glass. (Q15-22)
Can not perform relay sending?
Does the relay unit support ITU-T subaddress/password transactions?
If the relay unit does not support ITU-T subaddress/password transactions,
you can not perform relay sending.
Has the relay unit set up a relay group correctly?
The relay group must be set up correctly on the relay unit and the relay
unit must tell you the subaddress and password. If the relay unit has set a
ITU-T password, then you must send the document with the correct
password as well as the correct subaddress. (Q9-8)
Does the ITU-T subaddress/password match those of the relay unit?
Make sure you set the correct subaddress/password. (Q9-9)
Is the memory of the relay unit full?
Check with the relay unit and make sure there is enough memory to
receive your document. Ask the relay unit to clear their memory then try
again.
Can not perform confidential sending?
Does the other fax support ITU-T subaddress/password transactions?
If the other fax does not support ITU-T subaddress/password transactions,
you can not perform confidential sending.
Has the other party set up a confidential mailbox?
The other party must set up a confidential mailbox on the other fax and
tell you the subaddress and password. If the other party has set a ITU-T
password, then you must send the document with the correct password as
well as the correct subaddress. (Q10-9)
Does the ITU-T subaddress/password match those of the other party?
Make sure you set the correct subaddress/password. (Q10-9)
Is the memory of the other fax full?
Check with the other party and make sure there is enough memory to
receive your document. Ask the other party to clear their memory then try
again.
Maintenance & Frequently Asked Questions 15-31