continual errors looking for non-existent printer

[Chris Smith]

With cups set to debug mode I get the following continually repeated in the
error log:
==============================================
D [21/Jan/2008:14:29:59 -0500] cupsdAcceptClient: 6 from localhost (Domain)
D [21/Jan/2008:14:29:59 -0500] cupsdReadClient: 6 POST / HTTP/1.1
D [21/Jan/2008:14:29:59 -0500] cupsdAuthorize: No authentication data
provided.
D [21/Jan/2008:14:29:59 -0500] Get-Printer-Attributes
ipp:///printers/printers
D [21/Jan/2008:14:29:59 -0500] Get-Printer-Attributes
client-error-not-found: The printer or class was not found.
D [21/Jan/2008:14:29:59 -0500] cupsdProcessIPPRequest: 6 status_code=406
(client-error-not-found)
D [21/Jan/2008:14:29:59 -0500] cupsdCloseClient: 6
==============================================

Any ides on how to track this down and fix it?

Thanks.

Chris