Chapter 2 External I/O Specification Pin Assignment and Specification for I/O Signals The pin assignment and specification for I/O signals are shown below. Perform settings so that the specifications of the printer and external device match. 2 12 Pin Signal Input- Output *1 Pulse/Level Description 1 Signal Ground - - Ground for I/O signals. Set a jumper on CN100 to keep Signal Ground and Frame Ground separate. 2 Reserved - - This signal is reversed for the system. 3 Reserved - - 4 Reserved - - 5 Reserved - - 6 Reserved - - 7 Signal Ground - - Ground for I/O signals. Set a jumper on CN100 to keep Signal Ground and Frame Ground separate.
8 Ink Low *2 Output Level Indicates whether the printer is in an ink low state. • L: Ink low • H: No ink low 9 I/O Power (VCC EX) _ - - Provides 5 V (±10 %) power supply to external devices. The maximum current that can be provided is 180 mA. This pin can receive I/O power from an external I/O power supply with a jumper setting on CN200, while also keeping Signal Ground and Frame Ground separate. 10 Start print *3, 4 Input Pulse/Level Sends an instruction to start printing. • In pulse mode, printing starts if a change from High to Low is detected. Detection occurs only when the state of the "End print" signal is High, and does not occur while printing is in progress.
To print a new label, first return the signal to High, and then change it again from High to Low. • In level mode, printing starts if this signal is Low. Detection occurs only when the state of the "End print" signal is High. Printing of new labels will continue until Low is detected. • Signal logic: Low active