Symptom Action
No dial tone See “Modem/fax card service check” on page 138.
Machine dials a number but fails to make a connection with another
fax machine.
The other fax machine may be turned off. Ask the fax
recipient to check their machine.
Incoming fax has blank spaces or poor quality.
• The sending fax machine may be faulty.
• The sending fax machine may have a dirty
document glass.
• A noisy phone line can cause errors.
• Check the MFP print quality by making a copy.
• The print cartridge may be empty.
Invalid fax partition, or fax partition too small. See “Format fax storage” on page 177.
Enter Configuration menu >Format Fax Storage.
Some words on an incoming fax are stretched. The sending fax machine had a temporary jam.
Faxes fail to transmit. See “Fax transmission service check” on page 141.
Fax reception fails. See “Fax reception service check” on page 139.
Rattling noise coming from the ADF unit. Inspect the ADF top cover and ADF separator pad for
proper installation. Remove the separator pad and
separator roll and reinstall them, if needed. See “ADF
separator pad removal ” on page 311 and “ADF
separator roll removal ” on page 312.
See also“ADF top cover assembly” on page 323.
Black or blank page copy service check
Actions Yes No
Step 1
Print a menu page, or a page from the host.
Is the page black?
See “Printer is printing
solid black pages” on
page 40.
Go to step 2.
Step 2
Is the copy an ADF scan?
Go to step 4. Go to step 3.
Step 3
Run a flatbed copy.
Is it blank or black?
Go to step 5. Go to step 4.
Step 4
Did the sheet feed into the ADF?
Go to step 5. Perform an ADF paper
feed test.
Step 5
Is the CCD ribbon cable properly connected to JCIS1 on the controller
board?
Go to step 6. Properly connect the
ribbon cable to JCIS1.
7015
Diagnostic information
130
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