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6) BCC check function
BCC (Block Check Code) is 1 byte data that is a result of calculation of XOR for one item of send data (<A>~<Z>).
When sending a data to the printer from the host, you need to put BCC at the end of data (following to <Z>) of every items.
The printer calculates the BCC of every items of received data and checks the validity of the received data by comparing it with
the BCC in the received data. When the calculated BCC is not the same as the BCC in the received data, the printer judges the
data is incorrect, arises BCC error and stops printing.
The LCD display of BCC error
There are 4 ways to release the BCC error.
(1) Press the LINE key
The printer will resume the printing from the print data with the BCC error.
(2) Send SUB command
The printer will resume the printing after releasing the error.
Upon reception of this command, it is possible to select if you want to print or cancel
the data with the error.
(3) Send CAN command
The printer will cancel the print data with the error and resume the printing from the
next print data.
(4) Press the CANCEL key
The printer will cancel the print data with the error and resume the printing from the
next print data.
Calculation range of BCC
Print Data
STX
<A>
<ID>00001
Print Data
<Z>
BCC
ETX
Calculation range of BCC
[Supplemental explanation]
1. The BCC check is targeted only for the print data. Data without printing such as registration data or printer setting
commands are not targeted.
2. The data within <A>~<Z> is the calculation range of the BCC.
3. BCC will be calculated by using the exclusive OR of the data in the calculation range.
BCC CHECK ERROR
*The BCC error will be detected only when the BCC check is enabled.