Epson TM-U950P Specifications - Page 134

FS b [Name] Request retransmission of check paper reading result [Format] HH [Description] Retransmits the previous check paper (MICR character) reading results. [Notes] This command is executed after being buffered in the receive buffer. Therefore, there may be a time lag between sending this command and starting MICR reading. When the previous MICR reading results are correct, the printer transmits header + reading status + identified character strings + NULL to the host computer. If it is abnormal, or when FS a 0 is not executed, the printer transmits header + reading status + NULL to the host. When DTR/DSR control is selected, the printer transmits data consecutively after confirming whether the host computer is ready to receive data. When the host is not ready to receive data, the printer waits until the host is ready. When XON/XOFF control is selected, the printer transmits all data consecutively without confirming whether the host computer is ready to receive data. The data transmission must be consecutive, except for the XOFF code. The printer transmits all data collectively without confirming whether the host computer is ready to receive data after transmitting header. To receive identification result correctly, 67 bytes or more space is required in the receive buffer. Refer to the FS a 0 command description for header, reading status, and identified character strings. During identification result transmission, the printer ignores DLE EOT n, DLE EOT BS n, and GS ENQ. Also, the printer does not transmit ASB during reading and identification result transmission. Therefore, the user cannot confirm changes in the printer status during these periods. It is possible to differentiate the reading results of MICR, ASB, and real-time status. Refer to Appendix B for data identifying method. [Reference] DLE EOT BS, DLE EOT, FS a 0, GS ENQ, APPENDIX B TITLE EPSON TM-U950/U950P Specification (STANDARD) SHEET REVISION NO. NEXT AB 110064 SHEET 1035