SATO CL4NX Operator's Manual page 709

Error Message 1009 (Ribbon End)
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:
Load the ribbon correctly and close the print head, or press the
button.
Cause and Countermeasure
Cause (1)
The ribbon is not loaded.
Countermeasure (1)
Load the ribbon.
Loading Ribbon
Cause (2)
The ribbon is not loaded correctly.
Countermeasure (2)
Load the ribbon and the media correctly.
Loading Ribbon
Loading the Media
Cause (3)
There is no ribbon.
Countermeasure (3)
Load a new ribbon.
Loading Ribbon
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button (OFFLINE) or