Epson T70 USB Universal Serial Bus Interface, Outline, USB transmission specifications

Models: T70

1 86
Download 86 pages 58.54 Kb
Page 71
Image 71

Appendix

USB (Universal Serial Bus) Interface

Outline

Full-speed transmission at 12Mbps [bps: bits per second]

Plug & Play, Hot Insertion & Removable

USB transmission specifications

USB function

Overall specifications

According to USB 2.0 specifications

 

 

Transmission speed

USB Full-Speed (12 Mbps)

 

 

Transmission method

USB bulk transmission method

 

 

Power supply specifications

USB self power supply function

 

 

Current consumed by USB bus

0 mA

 

 

USB packet size (with full-speed connection)

 

 

 

USB bulk OUT (TM)

64 bytes

 

 

USB bulk IN (TM)

64 bytes

 

 

Status transmission from printer with USB interface

In order to ensure that there is no lack of status data, it is necessary to periodically retrieve status data at the host computer.

Unlike RS232C transmission, it cannot spontaneously interrupt data transmission to the host computer.

The printer has a 128-byte status data buffer. Statuses that exceed the buffer capacity are cancelled.

71

Page 71
Image 71
Epson T70 USB Universal Serial Bus Interface, Outline, USB transmission specifications, USB function