Limiting CUPS "Completed Jobs" Listing

["I_MY_MLs_j" <I_MY_MLs_j@comcast.net>]

All -

I have a Debian testing system that uses CUPS and it's web interface.  I've installed CUPS using the 
defaults and configured it.  The system correctly forwards print output from the testing system to a 'Woody' 
LPD/LPR system that queues and forwards the output to the printer (HP DeskJet).

On the testing system, I have ~90 entries in the "Completed Jobs" page of the web interface, dating from 
June to today (September).  It takes about 5 pages to list them all.  I don't care about any job that was 
completed months ago so would like to limit the number of jobs listed in the "Completed Jobs" page to 
about a page or so (~ 10-20 jobs), or perhaps list only those jobs completed in the 15-30 days.

I looked in the docs and it seemed that "MaxPrinterHistory" may do the job, so I changed 
/etc/cups/cupsd.conf, MaxPrinterHistory to 50.  After a reboot, I saw no change to the number of jobs 
listed.

I don't see a way to limit the number of jobs listed, or a means to purge the job listing.  Can someone 
help?

-TIA