Oki LE850 Technical Reference page 98

ES: Obtain printer status
The following values are sent:
<STX><CR><LF>
PRINTER STATUS
ERRORS:
WARNINGS:
<ETX>
"ERRORS" information format
ERRORS: a bbbbbbbb cccccdef
a
bbbbbbbb
ccccc
d
e
f
* For "WARNINGS" information, the fixed value '0' is sent.
HA: Obtain MAC address information
The following values are sent (MAC address is the printer's actual MAC address):
<STX><CR><LF>
MAC ADDRESS
00:80:91:34:51:AE
<ETX>
* If a LAN board is not installed, the MAC address information shall be"00:00:00:00:00:00."
0 00000000 00000000
0 00000000 00000000
: 0 No errors
1 Error detected
: 00000000 fixed
: 00000 fixed
: 0 No errors
1 Ribbon error/rewind full/Feed jam detected
: 0 No errors
1 Head high temperature error detected
4 Head disconnection error detected
: 0 No errors
1 Label end detected
2 Ribbon end detected
4 Head open detected
8 Cutter error detected
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<CR><LF>
<CR><LF>
<CR><LF>
<CR><LF>
<CR><LF>