SATO CL4NX Operator's Manual page 727

Error Message 1024 (Head Density Changed)
When there is an error with the printer, the error message appears on the screen.
Check the cause and countermeasure, and then take appropriate action.
To clear the error:
Check the message that appeared on the screen.
Cause and Countermeasure
Cause (1)
The print head is not installed.
Countermeasure (1)
Install the print head.
Replacing the Print Head
Cause (2)
A new print head with a different resolution has been installed.
Countermeasure (2)
Install a print head with the same resolution as the old print head.
Replacing the Print Head
Contact your SATO technical support center if the error cannot be resolved.
Contact Information for When You Are in Trouble
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