Instruction Manual (pdf)

191
Chapter 9 Troubleshooting
Cannot connect to the device
via the network
Cause [Allow remote operation] is set to [OFF].
Solution Set [Allow remote operation] to [ON]. (See p. 152.)
Cannot access shared folders
from a computer
Cause WINS server name resolution is being used.
Solution Use an IP address.
Cannot access folders or
servers despite successful
connection tests
Cause
The connection test is simply the results of issuing a PNG command to
the specified host.
Solution
Check that the other settings (user name, password, domain, path to
folder, port number, etc.) are configured properly.
Scan
Streaks appear in images
Cause The scanning glass is dirty.
Solution
Clean the scanning glass. (See p. 178.) If there are scratches on a
scanning glass, contact your local authorized Canon dealer.
Paper becomes jammed
Cause The rollers are dirty.
Solution Clean the rollers. (See p. 178.)
Cause A feed error related to the document type occurred.
Solution
Set [Document type] to [Extra-thin paper] in the Detailed Settings
screen. In addition, limit the number of documents placed on the
scanner to about 10 sheets. (See p. 54.)
Paper jams occur frequently
Cause The rollers (consumable parts) have worn out.
Solution
Purchase an Exchange Roller Kit and then replace the rollers. (See
p. 184.)