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6 TROUBLESHOOTING GUIDE
6.1.
USER RECOVERABLE ERRORS
If the unit detects a problem, one or more of the following messages will appear on the display.
The explanations given in the [ ] are for servicemen only.
DISPLAY MESSAGE
· Polygon motor error.
Refer to CALL SERVICE TROUBLESHOOTING GUIDE (P.92).
· Laser beam error. Replace LSU unit.
Refer to CALL SERVICE TROUBLESHOOTING GUIDE (P.92).
· Fuser unit cannot heat up. Replace fuser unit.
Refer to CALL SERVICE TROUBLESHOOTING GUIDE (P.92).
· Fan motor error. Replace fan motor.
Refer to CALL SERVICE TROUBLESHOOTING GUIDE (P.92).
· The shipping lock is locked. Unlock the shipping lock. If the display messages still remain after unlocking,
there is something wrong with the carriage sensor. Contact our service personnel.
· There is something wrong with the drum unit. Replace the drum unit and the toner cartridge.
· The ADF cable is not connected correctly. Check the connection.
· The document is not fed into the unit properly. Reinsert the document. If misfeeding occurs frequently,
clean the document feeder rollers and try again.
· The drum unit is not inserted properly. Reinsert it correctly.
· The installed drum is worn out. Replace the drum unit with a new one.
· The memory (telephone numbers, parameters, etc.) has been erased. Re-program.
[The backup lithium battery on the top of the digital board may be low or dead, so check it.]
· The printer cover is open. Close it.
· You tried to change the cable type setting (feature #15), while the fax machine has a document in
memory. Finish sending faxes, print out the document in memory or cancel the delayed transmission
(feature #25) and try again.
· The printer cover (ADF cover) is open. Close it.
· There is no space to store new entries in navigator directory. Erase unnecessary entries.
· Recording paper was not fed into the unit properly. Reinsert the recording paper.
· The unit has a document in memory. See the other displayed message instructions to print out the
document.
· Memory is full of received documents due to lack of recording paper or a recording paper jam, etc. Install
paper or clear the jammed paper.
· When performing memory transmission, the document being stored exceeds the memory capacity of the
unit. Transmit the entire document manually.
· You cannot change the cable the type setting (feature #15) while using the handset or the monitor. Hang
up and try again.
· When making a copy, the document being stored exceeds the memory capacity of the unit. Press STOP
to clear the message. Divide the document into sections.
· There is something wrong with the modem circuit.
· The other party´s fax machine is busy or has run out of recording paper. Try again.
· Recording paper is not installed or the unit has run out of paper. Install paper.
· Recording paper is not fed into the unit properly. Reinstall paper.
· A recording paper jam occurred. Clear the jammed paper.
[If the printout jams, please refer to RECORDING PAPER JAMS (P.37).]
· The cable or the PC power cord is not connected correctly. Check the connections.
· The software is not running on the PC. Restart the software and try again.
CAUSE AND REMEDY
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KX-FLB758RU
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Table of Contents
Troubleshooting
