Cognitive Solutions A776 All in One Printer User Manual


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Chapter 5: Programming commands 89
A776-PG00001 C 12/09 A776 (B780) Programming Guide
Flash memory user sector status (n = 4 or n = 52)
Bit O/On Hex Decimal Status for transmit status
0 – – – Undened. Fixed to o.
1 – – – Undened. Fixed to o.
2 O 00 0 User data storage write successful
On 04 4 User data storage write failed, specied area not erased.
3 O 00 0 Flash logo area adequate, denition stored.
On 08 8 Flash logo area not adequate for recent denition.
4 O 00 0 Not used. Fixed to o.
5 O 00 00 No thermal user-dened characters written to ash.
On 20 32 Thermal user-dened characters written to ash.
6 O 00 0 No impact user-dened characters written to ash.
On 04 64 Impact user-dened characters written to ash.
7 – – – Undened.
Send printer software version
ASCII US V
Hexadecimal 1F 56
Decimal 31 86
The printer returns 8 bytes containing the boot and ash software version. The rst 4 bytes returned are an ASCII string
for the boot version.
The second 4 bytes are an ASCII string for the ash version. Example: For 1.234.56 (8 bytes), the boot version is 1.23 and
the ash version is 4.56.
Real-time commands
The real time commands provide an application interface to the printer even when the printer is
not handling other commands:
• Real-timestatustransmission:GS(Hex1D)sequenceandDLE(Hex10)sequence
• Real-timerequesttoprinter:GS(Hex1D)sequenceandDLE(Hex10)sequence
• Real-timeprinterstatustransmission
The batch mode printer status commands are placed in the printer’s data buer as they are
received and handled by the rmware in the order in which they were received. If the paper exhausts while printing
data that was in the buer ahead of the status command, the printer
goes busy at the RS-232C interface and suspends processing the data in the buer until paper
is reloaded. This is true for all error conditions: knife home error, thermal printhead overheat, etc. In addition, there
is no way to restart the printer after a paper jam or to cancel a slip waiting condition when using the wait for slip
command.
The real-time commands are implemented in two ways in order to overcome the limitations of batch mode status
commands. Both implementations oer the same functionality; which one you choose depends on the current usage
of your application.
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