Error Message - Samsung SCX-5935FN Service Manual

4.2.3 Error Message

Messages appear on the control panel display to indicate the machine's status or errors. Refer to the tables
below to understand the messages' and their meaning, and correct the problem, if necessary. Messages and
their meanings are listed in alphabetical order.
[zzz] indicates the error code. When you contact the service center, this error code help to handle the
problem.
Message
Fax memory is almost
full. Print or remove
received fax Job./
Fax memory is full. Print
or remove received fax
Job.
Fuser error: [zzz].
Please turn off then on
Fuser unit is not
installed correctly.
Install it.
LSU error: [zzz]. Please
turn off then on
Original paper jam in
front of scanner duplex
path
Original paper jam in
front of scanner
Service Manual
Alignment & Troubleshooting
Description
There is no more available fax
memory. No more fax data can be
received.
1. At warm up, the temperature keep
up the lower temperature for regular
time.
2. In case that the temperature has
not reached warm up temperature
after warm-up time.
3. At ready, Less than target
temperature and for more than 10
sec.
4. At printing, Less than printing Ref.
temp and for more than 10 sec.
The fuser unit is not installed or
correctly
1. LSU motor does not operate.
2. After LD on, the Laser beam detect
signal is not occurred or irregular.
3. LSU motor does not operate or the
drive signal is abnormal.
Paper has jammed during duplex
printing in the DADF.
The originals are jammed in DADF
Delete the received fax data in the
memory to secure memory.
1. Check the Thermostat. If it is
defective, replace it.
2. Check the Lamp. If it is defective ,
replace it.
3. Check the fuser connector.
Reconnect it.
4. In case of printer input voltage lower
than standard voltage.
5. Check the Thermistor.
6. If the Heat On signal is not occurred
from Power supply, replace it.
Disassemble and reassemble the fuser
unit.
* Case 1,3 : After checking the LSU
motor rotation noise, check the motor
signal.
* Case 2 :
1. Check the Beam Detecht signal.
If there is a BD signal, replace the
Main board. If or not, check the LD
contol signal.
2. Check the LD Power is normal.
3. If it is normal, check the light
receving part.
Remove the jammed paper in DADF
Remove the jammed paper in DADF
4-59
Suggested solutions
Samsung Electronics