CALCULATOR
PRINTER
Detail of the data bytes:
• "Name of file" bytes:
Maximum of 8 characters (DOS format)
• "Length" bytes:
The calculator sends 2 bytes in hex. format representing the length of the data
(block file data).
Maximum length of file data = 1KB (1024 bytes).
• "Block number" bytes:
Transmissions must always be performed in the following order:
00h = transmission of the DOS file name in the file data (first block).
01h = transmission of blocks 1 to (N-1) of file data.
80h = transmission of final block (N) of file data.
ATTENTION
If the file already exists in the printer it will be overwritten when the
first block containing the same file name is received. Downloaded
files are not recognised until the printer is restarted.
Length
xxh, xxh
Identification
50h
File data (x bytes)
- - -
Final block N
80h
Data
Control byte
xxh
NACK
ACK
15h
06h
or
Protocol
A13862 Version E
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