Brother DS-820W User Manual page 90

Troubleshooting
Other difficulties
Difficulty Cause
I do not have or lost Causes may vary.
the Calibration Sheet.
I want use a USB hub. Causes may vary.
I cannot charge my The scanner is on while you are trying
scanner. to charge it.
The Li-ion battery is not installed cor-
rectly.
My scanner cannot be The battery has not been inserted.
turned on or is turned
The battery has been inserted in the
off immediately.
wrong direction.
• The battery is empty.
• The battery is low.
• The scanner's Wi-Fi
®
When I set the Wi-Fi The battery is low.
switch to ON, the
®
Wi-Fi indicator does
The Li-ion battery is not installed.
not turn on.
I lost the Li-ion battery Causes may vary.
or I cannot charge the
battery.
My computer cannot The Micro USB Cable is not connected
access the SD card via to your computer.
the Micro USB Cable.
Your scanner is in TWAIN mode.
The Wi-Fi
A document is being scanned.
®
switch is ON.
®
switch is set to ON.
Suggestions
The special glossy calibration sheet that came with
your scanner will give you the best calibration re-
sults. To order a new Calibration Sheet, go to Broth-
er Mall at http://www.brothermall.com.
Use your scanner without connecting to a USB hub.
A USB hub may not be able to supply enough pow-
er to the scanner.
Turn the scanner off when you charge it.
Make sure the Li-ion battery is installed in the cor-
rect direction (see the Quick Setup Guide).
Insert the battery.
Insert the battery in the correct direction. For more
information, see Installing the battery on page 9.
Do one of the following:
®
• Set the Wi-Fi switch to OFF to use the scanner.
• Connect the Micro USB Cable to your scanner
and your computer to use the scanner. If you
cannot turn on the scanner when you press the
Power button, wait for two minutes, and then
press the Power button again.
• Turn off the scanner and connect the Micro USB
Cable to your scanner and your computer until
the battery is charged fully. And then use the
scanner.
Connect the Micro USB Cable to your scanner and
your computer to charge the battery.
Install the battery, and then charge it.
Contact Brother Mall at
http://www.brothermall.com.
Connect the Micro USB Cable to your scanner and
your computer.
Press the Start / OK button, and then display SD on
the LCD to change to Mass Storage mode (SD
mode).
®
Set the Wi-Fi switch to OFF.
When the scanning is finished, wait for the SD
card's folder to be displayed on your computer
screen.
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