Brother International QL-1110NWB Raster Command Reference - Page 32

Raster Command Reference (6) Phase type and phase number If the phase number is not used, both are fixed at 00h. Phase State Receiving state Printing state Phase Type 00h 01h Receiving state Phase Waiting to receive Value (Dec.) 0 Higher Order Bytes 00h Lower Order Bytes 00h Printing state Phase Value (Dec.) Higher Order Bytes Lower Order Bytes Printing 0 00h 00h  When the printer is turned on, it is in the receiving state. When printing begins, it changes to the "printing" phase (phase type: printing state; phase number: printing), and the printer sends that phase status to the computer. When printing has finished, the printer sends the "receiving state" phase status (phase type: receiving state; phase number: waiting to receive) to the computer. Unless an error occurs during printing, the printer sends the "printing completed" status.  With concurrent printing, printing starts even if a print command has not been sent from the computer in order to print at high speed. At this time, care should be taken since the "printing" and "waiting to receive" phase statuses will be sent. (Refer to "5. Flow Charts".) (7) Notification number Notification Value Not available 00h Cooling (started) 03h Cooling (finished) 04h - 28 - 4. Printing Command Details