Citizen iDP-3221 Series User Manual page 152

APPENDIX 3.
Because the status sent from the printer has certain fixed bits, it is possible to identify to which command the status
belongs.
When using ASB (Automatic Status Back), however, the first byte of ASB should be checked, and then the three
consecutive bytes except for XOFF should be treated as ASB data.
Identification of Send Status
Command and function
GS I
GS r
XON
XOFF
DLE EOT
ASB (1st byte)
ASB (2nd - 4th bytes)
IDENTIFICATION OF SEND STATUS
Status
<0**0****>B
<0**0****>B
<00010001>B
<00010011>B
<0**1**10>B
<0**1**00>B
<0**0****>B
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iDP3221 User's Manual
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