Tried
sudo ls -al /private/var/spool/cups/tmp | sort +4n
Result (last 20 lines)
-rwxrwx--T 1 root lp 120324824 3 Oct 11:34 4341091eb6f73
-rwxrwx--T 1 root lp 132069719 5 Dec 17:00 439471f7c20e1
-rwxrwx--T 1 root lp 139868880 5 Dec 16:43 43946df7ddf55
-rwxrwx--T 1 root lp 147135462 14 Feb 17:47 43f2177b950b6
-rwxrwx--T 1 root lp 149068872 7 Feb 15:44 43e8c0268d99e
-rwxrwx--T 1 root lp 149356999 8 Feb 20:40 43ea56f8e5164
-rwxrwx--T 1 root lp 158063822 14 Feb 16:36 43f206abe85e0
-rwxrwx--T 1 root lp 158593862 27 Sep 17:31 433973990d21c
-rwxrwx--T 1 root lp 164852215 14 Feb 14:13 43f1e542b4de8
-rwxrwx--T 1 root lp 236037595 11 Feb 12:52 43edddcb78871
-rwxrwx--T 1 root lp 274519601 10 Feb 13:21 43ec92f102b68
-rwxrwx--T 1 root lp 349489079 14 Feb 18:39 43f2237dcafe7
-rwxrwx--T 1 root lp 349489079 14 Feb 21:22 43f2497c34d0d
-rwxrwx--T 1 root lp 349489079 14 Feb 22:23 43f257ddae29f
-rwxrwx--T 1 root lp 542133732 14 Feb 17:18 43f20f9459bc3
-rwxrwx--T 1 root lp 542133748 15 Feb 13:32 43f32c5625b27
-rwxrwx--T 1 root lp 578193584 11 Oct 16:02 434bd29aa9305
-rwxrwx--T 1 root lp 593536225 2 Oct 23:28 43405d384a4f5
-rwxrwx--T 1 root lp 1133935324 27 Sep 21:56 4339ae7f4bea8
-rwxrwx--T 1 root lp 1585566056 27 Sep 19:02 4339855da3b37
Trevor
UserAgent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-GB; rv:1.8.0.1) Gecko/20060111 Firefox/1.5.0.1


