cupsctl WebInterface=yes

From Terminal issue in sequence

sudo cupsctl --debug-logging

sudo cupsctl --no-debug-logging

The following two commands stop and restart the CUPS daemon

sudo launchctl unload /System/Library/LaunchDaemons/org.cups.cupsd.plist

sudo launchctl load /System/Library/LaunchDaemons/org.cups.cupsd.plist

If that does not work there should be some problem with CUPS. Have a look at log files

OS X Mavericks: Reset the printing system

Log into a newly created admin user account and see if the problem persists. If so, reinstall the OS.

iMac refurb (27-inch Mid 2011), OS X Mavericks (10.9.4), SL & ML, G4 450 MP w/Leopard, 9.2.2

Open Console, scroll down the left pane until you see cups. Expand

Try with a new admin account.

This is the contents of /etc/cups/

Check users and permissions

ls -la /etc/cups/

total 48

drwxr-xr-x 12 root _lp 408 4 Lug 22:15 .

drwxr-xr-x 95 root wheel 3230 7 Ago 18:36 ..

dr-x--x--x 2 _lp admin 68 8 Ago 22:39 certs

-rw-r--r-- 1 root _lp 3297 24 Mag 13:17 cups-files.conf

-rw-r--r-- 1 root _lp 4783 4 Lug 22:14 cupsd.conf

-rw-r--r-- 1 root _lp 4790 4 Lug 22:14 cupsd.conf.O

-rw-r--r-- 1 root _lp 6512 24 Mag 13:17 cupsd.conf.default

drwxr-xr-x 2 root _lp 68 5 Apr 09:53 interfaces

drwxr-xr-x 3 root _lp 102 26 Mag 10:38 ppd

-rw------- 1 root _lp 463 4 Lug 22:15 printers.conf

-rw------- 1 root _lp 463 4 Lug 22:14 printers.conf.O

-rw-r--r-- 1 root _lp 270 24 Mag 13:17 snmp.conf

Launch the Console application in any of the following ways:

☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)

☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.

☞ Open LaunchPad. Click Utilities, then Console in the icon grid.

Select

/var/log ▹ cups ▹ error_log

from the hierarchical list on the left side of the Console window. If you don't see that list, select

View ▹ Show Log List

from the menu bar.

Each message in the log begins with the date and time when it was entered. Select the messages from the time of the last failed printing attempt. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message (command-V).

If there are runs of repeated messages, post only one example of each. Don’t post many repetitions of the same message.

☞ The log contains a vast amount of information, almost all of it useless for solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.

Please don't indiscriminately dump thousands of lines from the log into this discussion.

Please don't post screenshots of log messages—post the text.

Have you checked permissions and users as I wrote in my previous message?