Microcom 814M Programming Manual - Manual (Page 62)

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[Notes]
When the LSB of n = 0, the ASB function is disabled.
When the LSB of n = 1, the ASB function is enabled.
Only the LSB of n is valid.
ƒ If the ASB function is enabled, the printer automatically transmits a four byte data
status. After this, a four byte data status is returned automatically when the printer
status changes.
ƒ Transmit data status only via serial and/or USB interface. If printer has serial and USB
interface, data is returned to the serial and USB interfaces at the same time.
ƒ The four byte status is defined as follows.
First byte (printer information)
Bit Off/On Hex. Status for ASB
0 0/1 00 Paper adequate/ Paper near end
1 0/1 02 Top cover closed / Top cover open
2 0/1 00/04 Paper adequate/ Paper end
3 0/1 00/08
Print head temperature normal/ Print head
overheated
4 0/1 00/10 Cutter normal/ Cutter error
5 0/1 00 Reserve
6 0/1 00 Reserve
7 0 00 Fixed to 0
Second byte (printer information)
Bit Off/On Hex. Description
0 0/1 00/01 PRST without paper / PRST with paper
1 0/1 00/02 Normal/Paper jam on printing part
2 0/1 00/04 Normal/Paper jam on PRST
3 0/1 00/08 Normal/Black mark missing
4 0/1 00/10 Normal/Auto paper loading error
5 0/1 00/20 Buffer not full/buffer full
6 0/1 00/40 System normal/error
7 0 00 Fixed to 0
Third byte (printer information)
Bit Off/On Hex. Description Possible error*
00000/10000 00/10
Printer idle status
Normal/Error
Top cover open,
Print head overheated, paper end/
near end
00001/10001 01/11
Printing status
Normal/ Error
Top cover open, Print head
overheated, paper end/ near
end ,Paper jam
00010/10010 02/12
Cutting paper status
Normal/ Error
Top cover open, Print head
overheated, paper end / near end ,
cutter error
Paper jam
00011/10011 03/13
PRST feeding paper
status Normal/ Error
Top cover open, Print head
overheated, paper end / near end ,
paper jam
0-4
00100/10100 04/14
PRST waiting status
Normal/Error
Top cover open, Print head
overheated, paper end / near end