This section describes the actions to take for troubles that may
occur while you are using the scanner. Please check the
following items before you request a repair. If the problem
persists, check each item in

"7.4 Before You Contact the

Scanner Service Provider" (page 156)

, and then contact the

distributor/dealer where you purchased this product.
The following are some examples of troubles that you may
experience.

7.3 Troubleshooting

Symptoms

"Scanner cannot be powered ON." (page 138)

"The LCD or the [Power] button light or both switch OFF." (page 139)

"Scanning does not start." (page 140)

"Scanning takes a long time." (page 141)

"Image quality is poor." (page 142)

"Quality of scanned text or lines is unsatisfactory." (page 143)

"Images are distorted or not clear." (page 144)

"Vertical streaks appear on the scanned image." (page 145)

"An error (error code "U0:10", "U4:40" or "U5:4A") is already displayed
in the LCD after power-on." (page 146)

"Multifeed error occurs frequently." (page 147)

"Situation in which the document is not fed into the ADF occurs
frequently." (page 149)

"Paper protection is set off frequently." (page 150)

"Paper jams/pick errors occur frequently." (page 151)

"Scanned images turn out elongated." (page 152)

"A shadow appears at the top or the bottom of the scanned image."
(page 153)

"There are black traces on the document." (page 154)

"Cannot connect the scanner and a computer via a USB cable." (page
155)

Symptoms