Chapter 4 Application Development Information; About Wireless Communication; For Application Developing - Epson TM-P60 Technical Reference Manual

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 detetection 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
TM-P60 Technical Reference Guide
Application Development Information 4-1