Lexmark X464de Service Manual - Page 42

7014-xxx Scan / fax / copy symptom table Symptom Action 840.xx scanner error ADF won't duplex (Duplex ADF only) ADF skew Multiple pages feed into ADF Documents wont feed into ADF Printer picks letter size paper on a legal size scan Scanner makes buzzing noise on startup or during a scan. Document feeds, but jams in ADF. Black streaks on scans Blank page Black page No dial tone Machine dials a number but fails to make a connection with another fax machine. Incoming fax has blank spaces or poor quality. Invalid fax partition, or fax partition too small. Some words on an incoming fax are stretched. Faxes fail to transmit. Fax reception fails. Go to "840.xx service check" on page 2-55. Go to "ADF Duplex service check" on page 2-62. Go to "ADF feed errors service check" on page 2-60. This is a symptom of a failed paper legnth sensor. Go to "Flatbed home position service check" on page 2-58. Go to "ADF paper jam service check" on page 2-60. Go to "ADF streak service check" on page 2-59. Go to "Black or blank page copy service check" on page 2-57. Go to "Modem / fax card service check" on page 2-63. The other fax machine may be turned off. Ask the fax recipient to check their machine. 1. The sending fax machine may be faulty. 2. The sending fax machine may have a dirty document glass. 3. A noisy phone line can cause errors. 4. Check the MFP print quality by making a copy. 5. The print cartridge may be empty. Replace as necessary. See Go to "Format Fax Storage" on page 3-7. The sending fax machine had a temporary jam. Go to "Fax transmission service check" on page 2-64. Go to "Fax reception service check" on page 2-66. 2-4 Service Manual