Lexmark T632 Service Manual page 37

Service error code (continued)
Error code
924 Fuser Error
925 Fuser Error
927 Fan Stalled
929 Toner Sensor
930 Printhead Error
931-935 Printhead Error
932 - Printhead: Lost
Hsync
933 - Mirror Motor
Locks/Lost Hsync
934 - Mirror Motor Lost
Lock
935 - Mirror Motor
unable to reach
operating speed.
936-937 Transport
Motor
936 - Main Drive Motor
initial lock failure
937 - Main Drive Motor
lost lock
940 Service LV Power
Supply
948 PEL Clock Error
949 Delay Line
Calibration Failure
950 NVRAM
Mismatch
951 NVRAM
Secure NVRAM Missing
953 NVRAM Chip
Failure
Action
An open circuit has been detected in the Fuser Thermistor Circuit. Go to
service checks" on page
Wrong fuser lamp installed. Go to
This is an indication that a printer fan has stalled. Go to
on page 2-69.
The toner sensor is not operating properly, the developer drive assembly is not
operating properly or the print cartridge is defective. Go to
check" on page 2-93.
The wrong printhead may be installed. If you have not replaced the system board
recently, replace the correct printhead. If the problem remains, replace the system
board. If you have recently replaced the system board and you still have a 930
error, the wrong system board may be installed. Replace the system board with
the correct system board.
These errors represent a problem with the printhead. Go to
check" on page 2-78.
Indicates a problem with the main drive motor. Go to
on page 2-68.
The low voltage power supply zero crossover test failed.
Check the LVPS for correct installation. Make sure the connector on the LVPS
assembly is firmly seated with the connector on the interconnect card connector.
This error may also be caused by a noisy AC input power source.
• Be sure the correct LVPS has been installed.
• If all the above are correct, replace the LVPS assembly.
Indicates the pel clock check failed. Replace the system board.
Indicates a delay line calibration failure. Replace the system board.
Go to "950 Error Code service check" on page
Replace the system board.
Indicates the NVRAM chip on the interconnect board has failed. Replace the
interconnect board.
2-52.
"Cold fuser service check" on page
"Main drive service check"
2-42.
Diagnostic information
4060-xxx
"Fuser
2-52.
"Main fan service check"
"Toner sensor service
"Printhead service
2-3