Operation Manual, Troubleshooting

14
TROUBLESHOOTING
Poor scanning quality.
The document glass or the underside of the document feeder is dirty.
→ Clean regularly.
► Maintenance
(page 7)
Original smudged or blotchy.
→ Use a clean original.
You have not specified a suitable resolution.
→ Make sure that the resolution setting in the scanner driver is appropriate for the
original.
You have not specified a suitable value for the "B/W Threshold" setting.
→ If you are scanning with a TWAIN-compliant application, make sure that a
suitable value is specified for the "B/W Threshold" setting. A larger threshold
value makes your output darker, while a small threshold value makes it lighter.
To adjust the threshold automatically, click the "Auto Threshold" button on the
"Image" tab of the "Professional" screen.
The brightness and contrast settings are not suitable.
→ If you are scanning with a TWAIN-compliant application and the resulting image
has unsuitable brightness or contrast (for example it is too bright), click the "Auto
Brightness/Contrast Adjustment" button on the "Colour" tab of the "Professional"
screen. Click the "Brightness/Contrast" button to adjust the brightness and the
contrast while viewing the scanned output image on the screen.
The original is not placed face up in the document feeder or face down on the
document glass.
→ Place the original face up in the document feeder or face down on the document
glass.
The original was not placed in the correct position.
→ Place the original correctly.
Unable to scan the image.
Your application is not TWAIN compliant.
→ If your application is not TWAIN compliant, scanning will not be possible. Make
sure your application is TWAIN compliant.
You have not selected the scanner driver of the machine in your application.
→ Make sure that the machine’s scanner driver is selected in your
TWAIN-compliant application.
You have not specified all scanning preferences appropriately.
→ Scanning a large area at high resolution results in a large amount of data and
extended scanning times. The scanning preferences should be set appropriately
for type of original to be scanned, i.e., Text, Text/Graphics, Photograph.
The recipient does not receive a
transmitted data.
There is a mistake in the stored destination information or the wrong
destination was selected.
→ Make sure that the correct destination information is stored.
If there is a mistake, correct it.
* If delivery by e-mail (Scan to E-mail) is unsuccessful, an error message such
as "Undelivered Message" may be sent to the designated administrator's
e-mail address. This information may help you determine the cause of the
problem.
Problem Cause and solution