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EPSON Stylus Photo 750 Revision A
Product Description Parallel Interface 19
1.3.4 USB(Universal Serial Bus) Interface
Following shows specification.
† Standard: Based on
„ Universal Serial Bus Specifications Revision 1.0
„ Universal Serial Bus Device Class Definition for Printing Devices
version 1.0
† Bit rate: 12Mbyte(Full Speed Device)
† Data encording: NRZI
† Adaptable connector: USB Series B
† Recommended cable length: 2 meters
Table 1-14. Connector pin assignment and signals
Figure 1-11. USB Interface Port
Pin.
No
Signal Name I/Out Function Description
1VCC --
Cable power. Maximum power
consumption is 100mA.
2 -Data
Bi-
directional
Data
3+Data
Bi-
directional
Data. Pull up to +3.3V via 1.5K ohm
resistor.
4 Ground -- Cable ground.
Pin 1
Pin 2
Pin 3
Pin 4