Brother PCL Technical Reference Manual page 27

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
CHAPTER 2 "PCL" - 9
2006/05/31
95
96
97
97
98
102
103
103