After a fresh Ubuntu 12.04 install, the Samsung Laser Monochromatic Printer (ML-1860) fails to print intermittently: sometimes it prints and sometimes it says that it is printed but it is actually not.
If I ask to print 6 copies, it prints around 2 copies (if so).
If I unplug the USB and replug it prints at least the first job sent. The same if I turn it off and on. But if I run sudo service cups stop && sleep 1 && sudo service cups start the problem persists.
I don't know if it is related to the bug #973270 because my print is connected at usb not at ipp.
Looks like Bas-Roufs has had the same problem after he fixed his installation problem as he said in a deleted answer.
The content of /var/log/cups/error.log is:
W [16/May/2012:20:49:53 -0300] failed to CreateProfile: org.freedesktop.ColorManager.AlreadyExists:profile id 'Samsung-ML-1860-Series-Gray..' already exists
W [16/May/2012:20:49:53 -0300] failed to CreateDevice: org.freedesktop.ColorManager.AlreadyExists:device id 'cups-Samsung-ML-1860-Series' already exists
W [16/May/2012:20:49:53 -0300] failed to CreateProfile: org.freedesktop.ColorManager.AlreadyExists:profile id 'Samsung-ML-1860-Series-Gray..' already exists
W [16/May/2012:20:49:53 -0300] failed to CreateDevice: org.freedesktop.ColorManager.AlreadyExists:device id 'cups-Samsung-ML-1860-Series' already exists
W [16/May/2012:20:49:53 -0300] failed to CreateProfile: org.freedesktop.ColorManager.AlreadyExists:profile id 'Samsung-ML-1860-Series-Gray..' already exists
W [16/May/2012:20:49:53 -0300] failed to CreateDevice: org.freedesktop.ColorManager.AlreadyExists:device id 'cups-Samsung-ML-1860-Series' already exists
I have followed the wiki DebuggingPrintingProblems and made a bug report (#1003422).
The result of tail -f /var/log/syslog is:
May 23 10:00:26 desguai3 udev-configure-printer: URI contains USB serial number
May 23 10:00:26 desguai3 udev-configure-printer: URI match: usb://Samsung/ML-1860%20Series?serial=Z5M7BDAB501185X.
May 23 10:00:26 desguai3 udev-configure-printer: device devpath is /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.1
May 23 10:00:26 desguai3 udev-configure-printer: Device already handled
May 23 10:00:26 desguai3 udev-configure-printer: Consider also queues with "/usb/lp0" or "/usblp0" in their URIs as matching
May 23 10:00:26 desguai3 udev-configure-printer: URI of print queue: mfp:/dev/mfp4, normalized: mfp dev mfp4
May 23 10:00:26 desguai3 udev-configure-printer: URI of detected printer: usb://Samsung/ML-1860%20Series?serial=Z5M7BDAB501185X., normalized: samsung ml 1860 series serial z5m7bdab501185x
May 23 10:00:26 desguai3 udev-configure-printer: URI of print queue: usb://Samsung/ML-1860%20Series?serial=Z5M7BDAB501185X., normalized: samsung ml 1860 series serial z5m7bdab501185x
May 23 10:00:26 desguai3 udev-configure-printer: URI of detected printer: usb://Samsung/ML-1860%20Series?serial=Z5M7BDAB501185X., normalized: samsung ml 1860 series serial z5m7bdab501185x
May 23 10:00:26 desguai3 udev-configure-printer: Queue ipp://localhost:631/printers/ML-1860-Series has matching device URI
May 23 10:00:26 desguai3 udev-configure-printer: Re-enabled printer ipp://localhost:631/printers/ML-1860-Series
At Ubuntu forum there is a thread about it too.
So how can I troubleshot this failure? Where else to look for information or possibles fixes?
