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BYTE 0
DEVICE STATUS BYTES
(Integral printer)
BYTE 0
Status
DEVICE STATUS BYTES
(external printer)
BYTE 1
4
o
Status of Last
Print Command
1
last command
failed
o
= last command
successful
Printer Error*
1 = yes
o
= no
*out of paper or
printer gate open
BYTE 1
BYTE 2
=
Printer Busy
= Printer not Busy
'------Command Execution
1
last command
performed
o =
last command
interrupted
Printer Present
1
yes
o
= no
BYTE 2
Printer Busy
1
device transfer in
progress
o
not busy
'-----Command Execution
1
last command
performed
o =
last command
interrupted
Printer Connected
1
yes
o
= no
Figure 8-11. Device Status Bytes
8-17
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