Brother HL-1070 - B/W Laser Printer Technical Reference Manual page 29

EscCR!#E Execute data
Esc&b#W AppleTalk configuration
EscCR!1234#M MIO video I/O port control
Status Readback
Esc*s#T Set status readback location type
Esc*s#U Set status readback location unit
Esc*s#I Inquire status readback entity
Esc*s1M Free space command
Esc&r#F Flush all pages command
Esc*s#X Echo command
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