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Appendix
73
Appendix
Specification of USB (Universal Serial Bus) Interface
Outline
•Full-speed transmission at 12 Mbps [bps: bits per second]
•Plug & Play, Hot Insertion & Removal
USB transmission specifications
USB function
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.
However, it cannot spontaneously interrupt data transmission to the host computer.
The printer has a 128-byte st
atus data buffer. Statuses that exceed the buffer capacity are
canceled.
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 64 bytes
USB bulk IN 64 bytes
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