Brother RJ-4030 - Manual (Page 36)

Raster Command Reference
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5. MCR Command Specifications
5.2. Response
Condition Successful Reception Response (When there is data)
Response
Hex 54h [track] 3Ah [data] 0Dh 0Ah
ASCII T [track] : [data] CR LF
Track number Multiple bytes Delimiter
Description
Response that returns the read card data
[track]: Tra ck number (ASCII, ‘1’ to ‘3’)
Track1: 31h, Track2: 32h, Track3: 33h
[data]: Read data string (ASCII)
SS start code and FC, AS, ES, SS, etc. symbols are not included.
Condition Successful Reception Response (When there is no data)
Response
Hex 54h [track] 3Ah [“empty”] 0Dh 0Ah
ASCII T [track] : [“empty”] CR LF
Track number
Character string
“empty”
Delimiter
Description
Response indicating that there was no data on the track specified with the MCR on command
This response is returned if the specified track does not exist on the card.
[track]: Track number (ASCII, ‘1’ to ‘3’)
Track1: 31h, Track2: 32h, Track3: 33h
[“empty”]: The character string “empty” is entered.
Hex 65h 6Dh 70h 74h 79h
ASCII e m p t y