Xerox DOCUPRINT N4525 Service Quick Reference Manual page 65

Table 1-27 Repair Analysis Procedure (RAP) Table (cont'd.)
Displayed Error
Error Code
Message
Laser Failure U3-4
Power Off/On
Laser Failure U3-5
Power Off/On
Fuser Failure U4-1
Power Off/On
Fuser Failure U4-2
Power Off/On
Fuser Failure U4-3
Power Off/On
Fuser Failure U4-4
Power Off/On
Fuser Failure U4-5
Power Off/On
Fan Failure U4-9
Power Off/On
IOT Memory Fail U6-2
Power Off/On
IOT NVM Fail U6-3
Power Off/On
IOT NVM Fail U6-4
Power Off/On
IOT ASIC Fail U6-5
Power Off/On
Fault Description
There is a problem with the Start Of Scan (SOS)
Sensor.
Logic Control on the Print Engine Controller Board
detected the time between signals from the Start Of
Scan Sensor was shorter than specified.
There is a problem with the Laser Scanner.
Logic Control on the Print Engine Controller Board
detected that the Laser Scanner Motor has not come
up to full speed within the specified time.
There is a problem with the Fuser.
Logic Control on the Print Engine Controller Board
detected that the thermistor remained on for longer
than the specified time.
There is a problem with the Fuser.
Logic Control on the Print Engine Controller Board
detected that the Fuser temperature exceeded the
temperature set for Fuser overheat.
There is a problem with the Fuser.
Logic Control on the Print Engine Controller Board
sensed that the Fuser thermostat opened.
There is a problem with the Fuser.
Logic Control on the Print Engine Controller Board
sensed that the Fuser thermostat opened.
There is a problem with the Fuser.
Logic Control on the Print Engine Controller Board
detected a fuser temperature above the upper limit.
There is a problem with the Fuser Fan.
Logic Control on the Print Engine Controller Board
received a Fan Alarm signal from Fuser Fan.
There is a problem reading information from
RAM.
Logic Control on the Print Engine Controller Board
had a problem reading information from RAM.
There is an unnamed problem with Non-Volatile
Memory.
Logic Control on the Print Engine Controller Board
had a problem with NVRAM.
There is a problem reading information from
Non-Volatile Memory.
Logic Control on the Print Engine Controller Board
had a problem reading information from NVRAM.
There is a problem with ASIC-CRUM.
Logic Control on the Print Engine Controller Board
detected an ASIC-CRUM control circuit error.
Volume 1 / Print Engine - Error Codes & Messages
Go To Unit/
RAP Page
No.
RAP 1-52
1-6
RAP 1-53
1-7
RAP 1-54
1-8
RAP 1-55
1-9
RAP 1-56
1-10
RAP 1-57
1-11
RAP 1-58
1-12
RAP 1-59
1-13
RAP 1-60
1-14
RAP 1-61
1-15
RAP 1-62
1-16
RAP 1-63
1-17
1-43