Xerox 8850 Service Manual page 25

Table 1 Status Code Entry Chart
Status Description
Code
LL-41 Fuser error. LL-41 is displayed
when the Fuser heat does not
exceed 210 degrees F (99 degrees
C) within two minutes.
LL-42 Fuser error
No RAP The Fuser Heat Roll exceeded the
allowable temperature for more
than 30 seconds. The maximum
temperature is 350 degrees F (177
degrees C).
To reset: switch off, then on, the
Main Power Switch.
LL-45 Fuser temperature error
The Fuser was in full-power warm-
up mode more than 10 minutes.
To reset: switch off, then on, the
Main Power Switch.
LL-50 Power supply error
No RAP 24 VDC Bulk power supply failure.
LL-51 Power On Self Test fault
No RAP The internal RAM failed POST.
8850/ 510DP
Components BSD
Ref
• If declared at install, BSD PL
check the Line Service 10.1 10.3
[0261] PL
10.2
• Thermistor (RT2) or
PL 1.1
(RT3) does not touch
the Fuser Heat Roll.
• (RT2) or (RT3) has an
open circuit or a short
circuit to ground.
NOTE: Clean/Replace
the Thermistor (RT2) or
(RT3).
• Replace AC Module
Assembly (A1).
• Thermistor (RT2) or BSD PL
(RT3) has a short cir- 10.1 10.2
cuit.
• Fuser Temperature not
set to specification (ADJ
10.1)
• Line Current Limit (ADJ BSD PL
3.2) - Line Service is not 10.1 10.3
correct for the electrical PL
voltage used. Current 10.2
limit set point is too low. PL 1.1
Check the adjustment.
• Thermistor (RT2) or
(RT3) does not touch
the Fuser Heat Roll.
• Heat Rod (HR2), or the
associated circuit, has
an open or short circuit.
• Clean/Replace the
Thermistors (RT2) or
(RT3)
• Replace AC Module
Assembly (A1).
• Main PWB (A3) BSD PL 1.1
1.3
• LVPS (A5)
Replace Main PWB (A3) PL 1.1
PL Status Description
Ref Code
LL-52 Power On Self Test fault
No RAP or
The external RAM failed POST.
LL-53 Power On Self Test fault
No RAP IOT firmware checksum error.
LL-54 Power On Self Test fault
No RAP An unknown device failed POST.
LL-55 Power On Self Test LVPS fault
No RAP The Analog to Digital Converter
(ADC) failed POST
LL-56 Power On Self Test ADC/ DAC
No RAP (Digital to Analog Converter)
fault
The ADC/DAC failed POST
LL-57 Power On Self Test SCC fault
No RAP
LL-58 Power On Self Test
No RAP Extra "Return Value" from the
Operating System. Reboot (Power
off / Power On).
LL-60 Power On Self Test NVM Check-
No RAP sum fault
Try to run [0366} to record the
existing NVM values. Run diagnos-
tic [0360] to reset NVM to the
default values. Manually restore
the required NVM values.
LL-61 Power On Self Test revision
No RAP level fault
Power the Printer up in diagnostics
and run [0360] to reset NVM to
default values.
LL-71 Fuser Fault - Line voltage out of
No RAP Range.
- Line voltage during Fuser Calibra-
tion is too low or too high.
- Open circuit in one or both of the
Heat Rods or their associated wir-
ing,
- ACH input is too high or too low
- To reset: switch the Main Power
Switch off, then on,.
03/2003
1-9
Table 1 Status Code Entry Chart
Components
Replace Main PWB (A3)
Replace Main PWB (A3)
Replace Main PWB (A3)
Replace the Main PWB (A3)
Main PWB (A3)
Main PWB (A3)
Main PWB (A3)
Replace the Main PWB (A3)
Replace the Main PWB (A3)
• Check that the Line Ser-
vice (ADJ 3.2) is set to
the correct amperage.
• One or both of the Heat
Rod circuits has devel-
oped an open circuit.
• Replace the AC Module
Assembly (A1)
Service Call Procedures
Status Code Entry Chart
BSD PL
Ref Ref
PL 1.1
PL 1.1
PL 1.1
BSD PL 1.1
1.2
PL 1.1
PL 1.1
PL 1.1
PL 1.1
PL 1.1
BSD PL
10.1 10.2
PL 1.1