Epson TM-U950P Specifications - Page 78

DLE EOT n [Name] Real-time transmission of status [Format] [Range] HH 1£n£5 [Description] Transmits the selected printer status specified by n in real time, according to the following parameters: n Function 1 Transmit printer status 2 Transmit off-line factor status 3 Transmit error factor status 4 Transmit paper roll sensor status 5 Transmit slip paper status [Notes] The status information to be transmitted is shown in the tables on the following pages. The printer starts processing data upon receiving this command. When transmitting status, the printer transmits only 1 byte without confirming the condition of the DSR signal. With the serial interface model, this command is executed even in off-line or receive buffer-full state. With the parallel interface model, this command is executed even in off-line if the DIP switch 2-5 is set ON. The status is transmitted whenever the data sequence of HH (1 £ n £ 5) is received. Example: * L H In ESC m n n d1...dk, d1=H, d2=H, d3= This command should not be used within the data sequence of another command that consists of 2 or more bytes. Example: If you attempt to transmit ESC 3 n to the printer, but DTR (DSR for the host computer) goes to MARK before n is transmitted and then DLE EOT 4 interrupts before n is received, the code H for DLE EOT 4 is processed as the code for ESC 3 H. This command is unavailable when using the ESC = (Select peripheral device) to select the printer to be disabled. When Automatic Status Back (ASB) is enabled using the GS a command, the status transmitted by the DLE EOT command and the ASB status must be differentiated using the table in APPENDIX B. If the value of n is out of the specified range, the printer ignores this command. TITLE EPSON TM-U950/U950P Specification (STANDARD) SHEET REVISION NO. NEXT AE 50 SHEET 49