Base Printer (Fuser) Sub Error Codes - Lexmark 632n - T B/W Laser Printer Service Manual

Base printer (fuser) sub error codes

The following sub error codes could help in diagnosing fuser assembly failures:
Base printer (fuser) sub error codes
First 6 bytes sub error
code data (xx can be
any value)
920 Service - Fuser Error (under temperature while printing)
EN 08 xx yy - 1
EN- zz - - 2
921 Service - Fuser Error (fuser under temperature while at standby)
EN 41 xx yy -- 1
EN -- zz -- -- 2
922 Service - Fuser Error (fuser failed to reach standby temperature)
EN 42 xx yy -- 1
EN z1 z2 -- -- 2
923 Service - Fuser Error (Fuser Cover Temperature)
EN 12 xx yy -- 1
EN -- -- -- -- 2
924 Service - Fuser Error (Open Thermistor Failure)
EN 18 xx -- -- 1
EN -- 00 -- -- 2
Explanation
xx= Actual fuser temperature
yy= The temperature that the fuser wants to reach.
zz= 00 The hot roll took too long to heat up.
zz= 01 The hot roll fell too far below the desired temperature while printing.
zz= 02 The hot roll was too cool while the system was doing some checking.
zz= 03 The hot roll was too cool when heating to the desired temperature.
xx= Actual fuser temperature
yy= The temperature that the fuser wants to reach.
zz= 00 The fuser temperature did not change enough from the fuser lamp
temperature at turn on.
01 The fuser temperature rose more than desired from the fuser
temperature at turn on.
xx= Actual fuser temperature
yy= The temperature that the fuser wants to reach.
zz= 00 The fuser temperature did not change enough from the fuser lamp
temperature at turn on.
01 The fuser temperature rose more than desired from the fuser
temperature at turn on.
z2= 00 The hot roll did not reach standby temperature in time during standby.
01 The hot roll took too long to reach the beginning lamp detection
temperature.
02 The hot roll reached 'final lamp detection temperature' but took longer
than expected.
03 The hot roll timed out trying to reach the 'final lamp detection
temperature.'
04 After hot roll lamp detection, did not reach steady state control in time.
05 The hot roll did not reach operating temperature in time.
This sub error code displays anytime that the hot roll has reached a higher than
desired temperature.
xx= Actual fuser temperature
yy= The temperature that the fuser wants to reach.
This code is usually generated when an open circuit check is made of the
thermistor circuit in the fuser.
xx= Actual Fuser Temperature
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Diagnostic information
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