Sony PRS300SCEPL Manual

PRS-300.GB.4-151-151-11(1)

Connection to the computer

The Reader cannot 

be operated during 

USB connection.



 Disconnect the USB connector from 

the Reader.

The Reader cannot 

be recognized.



 The Reader is turned off or the USB 

cable is not connected properly.

 Verify the above and try again.



 A USB hub or USB extension cable 

is used for the connection.

 Connecting the Reader via a USB 

hub or extension cable may not work 

and is not supported. Connect the 

USB cable directly to the computer.



 Verify that 

 (indicating connection 

via USB) is displayed at the top of 

the Reader’s screen. If the Reader 

still cannot be recognized, 

disconnect the USB cable from the 

Reader, then reconnect it after a 

while.



 If “Device Lock” of the Reader is set 

to “On,” set it to “Off.” If the Reader is 

locked, it will not be recognized on 

your computer.



 While the Reader is connected to a 

computer, do not turn on, restart, 

wake up from sleep mode, or shut 

down the computer. These 

operations may render the Reader 

unrecognizable by the computer. 

Disconnect the Reader from the 

computer before performing these 

operations.

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