Tally T5023+ Programming Manual page 230

Controlling the MSR / MICR functions
1B 5B 31 3B 3B 3B 22 72 02 30 31 32 3F 34 35 ... 39 03
– Not OK (The document is wider than 90mm.):
The document remains in its position (it is not moved).
An MSR acknowledgement is generated (without read data between
start and end character), and contains the error code 8 (= ASCII "38") in
the parameter byte n4:
1B 5B 3B 3B 3B 38 22 72 02 03
The document can be processed (printed, ejected) without any limitati-
ons.
220
T5023/5023+ - Programming Guide
Additional commands (Printer)