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2-4
Service Manual
Scan / fax / copy symptom table
Unexpected page breaks occur
• Increase the Print Timeout value on the operator panel
(Settings–>General Settings–>Timeouts–>Print Timeout.)
Symptom
Action
840.xx scanner error
“840.xx service check” on page 2-63
ADF won’t duplex (Duplex ADF only)
“ADF Duplex service check” on page 2-70
ADF skew
“ADF feed errors service check” on page 2-69
.
Multiple pages feed into ADF
Documents wont feed into ADF
Scanner makes buzzing noise on startup or
during a scan.
“Flatbed home position service check” on page 2-66
.
Document feeds, but jams in ADF.
“ADF paper jam service check” on page 2-68
Black streaks on scans
“ADF streak service check” on page 2-67
.
Blank page
“Black or blank page copy service check” on
Black page
No dial tone
“Modem / fax card service check” on page 2-71
.
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.
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.
Invalid fax partition, or fax partition too
small.
See
“Format Fax Storage” on page 3-34
Some words on an incoming fax are
stretched.
The sending fax machine had a temporary jam.
Faxes fail to transmit.
“Fax transmission service check” on page 2-72
.
Fax reception fails.
“Fax reception service check” on page 2-74
Rattling noise coming from the ADF unit
Inspect the ADF separator roll and ADF separator pad for proper
installation. If needed, remove the separator pad and separator
roll and reinstall them. See
“ADF separator pad” on page 4-87
“ADF separator roll assembly” on page 4-88
. for removal
instructions.
Symptom
Action
Y112730-2
Summary of Contents for d-Color MF920
Page 1: ...SERVICE MANUAL Copiatrici Copiers d Color MF920 d Color MF923 Code Y112730 2...
Page 10: ...x Service Manual Y112730 2...
Page 15: ...Notices and safety information xv Y112730 2...
Page 16: ...xvi Service Manual Y112730 2...
Page 18: ...xviii Service Manual Y112730 2...
Page 22: ...xxii Service Manual Y112730 2...
Page 124: ...2 80 Service Manual Y112730 2...
Page 198: ...3 74 Service Manual Y112730 2...
Page 302: ...4 104 Service Manual Y112730 2...
Page 305: ...Locations 5 3 Interior view Y112730 2...
Page 306: ...5 4 Service Manual Printer boards Controller Board Y112730 2...
Page 317: ...Locations 5 15 HVPS Y112730 2...
Page 319: ...Locations 5 17 LVPS Y112730 2...
Page 324: ...6 2 Service Manual Y112730 2...
Page 331: ...Index I 7 Y112730 2...
Page 332: ...UPDATINGSTATUS DATE UPDATEDPAGES PAGES CODE 09 2010 1ST EDITION 332 Y112730 2...