Check the following points

• If a USB connection is used, is the USB cable connected to the USB 1.1 port on the computer?

• Did you start a scan while the computer was unstable (for example, immediately after computer start-up or logon)?

• Are the rollers clean?

• Does the computer meet the specifications for the system environment used for measuring scan speed?

If the problem persists, check the items in Before You Contact the Scanner Service Provider first, then contact the distributor/dealer where you purchased this product. Refer to the contact information in the Contact List if supplied with this product, or refer to the contact information in the Contact for Inquiries section if provided in Safety Precautions supplied with this product, and then make an inquiry.

If a USB connection is used, is the USB cable connected to the USB 1.1 port on the computer?

Solution

If a USB connection is used, connect the USB cable to the USB 3.1 Gen1/USB 3.0/USB 2.0 port.

Did you start a scan while the computer was unstable (for example, immediately after computer start-up or logon)?

Solution

When you start or log onto the computer, wait a while before starting a scan.

Are the rollers clean?

Solution

Clean the rollers.

For details, refer to Cleaning the Inside of the Scanner (ADF) with a Cloth.

Does the computer meet the specifications for the system environment used for measuring scan speed?

Solution

If the computer does not meet the specifications of the system environment used for measuring scan speed listed in Basic Specification (such as CPU and memory), use on a computer that meets the specifications.