Canon LASER SHOT LBP3210 User Manual page 259

"Specified Paper Incorrect" appears in the Printer Status Window.
Cause 1
Remedy
Cause 2
Remedy
When you are using a shared printer from your computer, it takes a long time to update the
status on the Printer Status Window
6
Cause
Remedy
6-32 Miscellaneous Problems
The setting for [Output Size] for the job to be performed differs from the setting
for [Output Size] for the job that has been performed most recently.
When printing on paper that is fed from the cassette, check the size of the paper
that is loaded in the cassette, load the appropriate paper as needed, then set
the cassette into the printer again (Printing starts automatically).
When printing on paper that is fed from the manual feed slot, check the size of
the paper loaded in the manual feed slot, load the appropriate paper as needed,
then click [ ] (Resolve Error) in the Printer Status Window.
[Detect Paper Size in Cassette] is checked.
If you remove the checkmark from [Detect Paper Size in Cassette], "Specified
Paper Incorrect" is not displayed in the Printer Status Window, but the printer
uses the currently loaded paper regardless of the setting for [Output Size].
Your print server is installed with an operating system equipped with Windows
Firewall, such as Windows XP Service Pack 2, and Windows Firewall is blocking
communication with client computers.
Start the print server and configure Windows Firewall to unblock communication
with the client computers. (See "Windows Firewall," on p. 7-8)