Brother DS-820W DS-920DW Manuale Utente

Troubleshooting 

My scanner is con-
nected but it will not 
feed my document or 
do anything else.  

Your document is not set correctly.

Insert your document until you feel the top edge of 
the document touch the inside of your scanner.

Your document is too thin or too thick.

Check that your document is acceptable (see Doc-
ument Specifications on page 12).

If your document is not the problem:

1. Confirm that the Micro USB Cable connecting 

your scanner to your computer is properly con-
nected.

2. Reinstall the scanner driver from the DVD-ROM.

The scanner’s top cover is open.

Close the top cover and start scanning again.

The scanner is turned off because the 
auto power off function is active.

Press the Power button to turn on the scanner.

You are operating the settings menu. 
(SD mode only)

Get out of the settings menu to put the scanner into 
standby mode.

No SD card is inserted in the scanner’s 
SD card slot. (SD mode only)

Insert an SD card into the scanner’s SD card slot.

The document is 
jammed.

Causes may vary.

Open the scanner’s top cover and gently pull out 
the document. Make sure that no piece of paper re-
mains in the scanner.

Your document is not acceptable for the 
machine (for example, if the paper is 
too long).

„

Make sure your document is acceptable for the 
machine (see Document Specifications on 
page 12).

„

Use the supplied Carrier Sheet (see Loading the 
Carrier Sheet on page 16).

My scanner gets 
warm.

It is normal for your scanner to emit a 
small amount of heat after prolonged 
use. 

If there is a strange smell coming from the scanner 
or the scanner feels a little bit hot to the touch, im-
mediately remove the Micro USB Cable from your 
scanner and computer.

The scan quality is 
poor.

Paper dust has accumulated inside 
your scanner.

Clean your scanner (see Scanner Maintenance on 
page 64).

Calibration needs to be performed.

Perform the calibration.

• To perform the calibration using the control pan-

el, see Calibration using the control panel on 
page 58.

• For Windows

®

: to perform the calibration using 

software, see Calibration using software (for 
Windows

• For Macintosh: to perform the calibration using 

software, see Calibration using software (for 
Macintosh) on page 62.

The scanner resolution is too low.

Increase the scanner resolution.

For Windows

®

: see Image settings on page 28.

For Macintosh: see Image settings on page 36.