EPSON — 4.1.1 For Application developing

TM-P60 Technical Reference Guide Chapter 4 Application Development Information This section contains usable information to develop POS systems that use this printer. 4.1 About wireless communication 4.1.1 For Application developing The TM-P60 uses wireless comunication technology; therefore temporary communication breaks may occur when you move or are in an outside environment. When you develop application software using wireless communication, you should consider this. We recommend you confirm whether or not the printer printed after every print data transmission unit. Detection of communication errors and recovering from such errors are also important.

Data communication without confirmation of printing and detection of communication errors may cause data loss. ❏ Time until printing starts (Bluetooth specification) A wireless connection is not constantly maintained between the host device and the printer. When printing starts and the connection is reestablished, there may be a time lag between the time that the host device commands the print job to start and the time that actual printing begins. This is because some time is needed to manage the connection between the host device and the printer. The time required depends upon the operating environment.

❏ Disconnection timing (Bluetooth specifications) Even if data is no longer being sent by the host application, data may still remain in the printer’s internal buffer. Data within that buffer may need to be deleted when the device connection is terminated. When printing or terminating a wireless connection, use the status sheet, etc., to confirm that transmitted data has actually printed. Rev. C Application Development Information 4-1