Brother QL-720NW - Manual (Page 28)

Raster Command Reference
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4. Printing Command Details
(4) Media type
Media Type Value Description
No media 00h
Used as print information when the
media type is not indicated.
Continuous length tape 4Ah Used for both paper and film.
Die-cut labels 4Bh Used for both paper and film.
(5) Status type
Status Type Value
Reply to status request 00h
Printing completed 01h
Error occurred 02h
Turned off 04h
Notification 05h
Phase change 06h
(Not used) 08h to 20h
(Reserved) 21h to FFh
If an error occurred during printing, the printer returns the error status.