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05-29-2017, 12:38 PM
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#16
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LQ Guru
Registered: Apr 2008
Distribution: Slackware, Ubuntu, PCLinux,
Posts: 11,420
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Did you look at the error/access logs in CUPS? Anything interesting there? I notice in your lpstat output that it shows "accepting requests" and "disabled" occurring at the same time on Saturday. Seems a little odd. On my system with a working printer (HP), there is a usb file in the /usr/lib/cups/backend/ directory so...? If you don't resolve this, you might try re-installing CUPS but that's just a guess on my part. Maybe someone else will have a better idea. Good luck.
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05-29-2017, 01:58 PM
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#17
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Senior Member
Registered: Dec 2002
Distribution: slackware!
Posts: 1,398
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do
Code:
ls -la /usr/lib/cups/backend/
and post results
I see usb* in mine
Quote:
ls -la /usr/lib64/cups/backend/
total 756
drwxr-xr-x 2 root root 4096 Feb 2 2016 ./
drwxr-xr-x 9 root root 4096 Feb 2 2016 ../
-rwxr-xr-x 1 root root 10480 Jun 23 2016 beh*
-rwxr-xr-x 1 root root 120720 Nov 27 2013 bjnp*
-rwxr-xr-x 1 root root 150032 May 31 2016 bluetooth*
-rwx------ 1 root root 204168 Feb 2 2016 gutenprint52+usb*
lrwxrwxrwx 1 root root 3 Jul 8 2016 http -> ipp*
lrwxrwxrwx 1 root root 3 Jul 8 2016 https -> ipp*
-rwxr-xr-x 1 root root 14632 Jun 23 2016 implicitclass*
-rwx------ 1 root root 73040 Jun 15 2016 ipp*
lrwxrwxrwx 1 root root 3 Jul 8 2016 ipps -> ipp*
-rwx------ 1 root root 43856 Jun 15 2016 lpd*
-rwxr-xr-x 1 root root 18800 Jun 23 2016 parallel*
-rwxr-xr-x 1 root root 14640 Jun 23 2016 serial*
lrwxrwxrwx 1 root root 17 Jul 8 2016 smb -> /usr/bin/smbspool*
-r-xr-xr-x 1 root root 27312 Jun 15 2016 snmp*
-r-xr-xr-x 1 root root 35512 Jun 15 2016 socket*
-r-xr-xr-x 1 root root 35624 Jun 15 2016 usb*
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05-29-2017, 04:25 PM
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#18
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LQ Guru
Registered: Sep 2003
Location: Auckland, NZ
Distribution: openSUSE Leap
Posts: 6,016
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As already noted, you're missing a crucial CUPS backend (needed for USB-connected printing). This is normally supplied as part of the cups package. I'd reinstall cups accordingly.
Last edited by ferrari; 05-29-2017 at 04:33 PM.
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05-29-2017, 11:00 PM
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#19
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LQ Newbie
Registered: Aug 2015
Location: England.
Distribution: Currently Peppermint 7
Posts: 28
Original Poster
Rep: 
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Hello all, and thankyou.
In answer to glorsplitz:
mary@mary-Latitude-E6430 ~ $ sudo ls -la /usr/lib/cups/backend/
[sudo] password for mary:
total 588
drwxr-xr-x 2 root root 4096 May 29 21:12 .
drwxr-xr-x 10 root root 4096 May 28 23:36 ..
-rwxr-xr-x 1 root root 10624 Aug 22 2016 beh
-rwxr--r-- 3 root root 18424 Mar 25 2016 dnssd
-rwxr--r-- 1 root root 211312 Feb 18 2016 gutenprint52+usb
lrwxrwxrwx 1 root root 3 Mar 25 2016 http -> ipp
lrwxrwxrwx 1 root root 3 Mar 25 2016 https -> ipp
-rwxr-xr-x 1 root root 10680 Aug 22 2016 implicitclass
-rwxr-xr-x 1 root root 71768 Mar 25 2016 ipp
-rwxr-xr-x 1 root root 51296 Mar 25 2016 ipp14
lrwxrwxrwx 1 root root 3 Mar 25 2016 ipps -> ipp
-rwxr--r-- 2 root root 43096 Mar 25 2016 lpd
-rwxr--r-- 3 root root 18424 Mar 25 2016 mdns
-rwxr-xr-x 1 root root 18952 Aug 22 2016 parallel
-rwx------ 1 root root 14800 Aug 22 2016 serial
lrwxrwxrwx 1 root root 21 May 20 18:50 smb -> ../../../bin/smbspool
-r-xr-xr-x 2 root root 26624 Mar 25 2016 snmp
-r-xr-xr-x 2 root root 39000 Mar 25 2016 socket
-r-xr--r-- 2 root root 34808 Mar 25 2016 usb
mary@mary-Latitude-E6430 ~ $
I notice that the example given quotes lib64, mine above doesn't have any reference, does this matter? In fact my Peppermint 7 is 64 bit.
Regads Ant
Last edited by AntOne; 05-29-2017 at 11:02 PM.
Reason: 64 moved cups to lib...
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05-29-2017, 11:41 PM
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#20
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LQ Guru
Registered: Sep 2003
Location: Auckland, NZ
Distribution: openSUSE Leap
Posts: 6,016
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Just a thought - did you install the 64-bit cups package?
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05-29-2017, 11:58 PM
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#21
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LQ Guru
Registered: Jan 2005
Location: USA and Italy
Distribution: Debian testing/sid; OpenSuSE; Fedora; Mint
Posts: 5,524
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Are you trying to print a test page from within cups configuration at localhost:631. You can also start and stop the printer from within cups. You may just need to start it.
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05-30-2017, 12:04 AM
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#22
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LQ Newbie
Registered: Aug 2015
Location: England.
Distribution: Currently Peppermint 7
Posts: 28
Original Poster
Rep: 
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Hello Ferrari, I don't recall any options but my cups is about 2.1.2 whereas the ?source has now changed and the latest is about 3.1.2. My Synaptic only mentions, and updates, 2.1.2 .
Does this matter much?
Regards Ant
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06-03-2017, 04:57 PM
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#23
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LQ Newbie
Registered: Aug 2015
Location: England.
Distribution: Currently Peppermint 7
Posts: 28
Original Poster
Rep: 
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Hello everyone, thankyou all for your interest and help. Nevertheless I don't feel I've made much progress so I'll try another distro, probably Ubuntu.
Regards Ant
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06-04-2017, 12:31 AM
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#24
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Member
Registered: May 2011
Location: Texas
Distribution: Debian/Ubuntu,CentOS
Posts: 848
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Hello Ant. You probably have, but I'll ask anyway... Have you tried simply enabling the printer? To enable your printer:
Code:
mary@mary-Latitude-E6430 ~ $ sudo cupsenable Samsung-CLP-320-Series
Switching to Ubuntu is not going to help as the issue seems to be with CUPS, not with the OS.
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06-04-2017, 01:42 AM
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#25
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LQ Guru
Registered: Sep 2003
Location: Auckland, NZ
Distribution: openSUSE Leap
Posts: 6,016
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@erik2282: Check post #15 where the following status message was reported (in /etc/cups/printers.conf)
Code:
StateMessage Backend /usr/lib/cups/backend/usb does not exist!
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09-08-2017, 10:17 AM
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#26
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LQ Newbie
Registered: Jun 2017
Posts: 1
Rep: 
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I have seen this error: Backend /usr/lib64/cups/backend/smb does not exist! twice in the past month.
What I found is that the symlink between smbspool and smb did not exist in: /usr/lib64/cups/backend
However adding the symlink did not resolve the issue. I had to ALSO go into: /usr/lib/cups/backend
and create the same symlink. Here is what I had to do:
Solution for future CentOS 7 builds:
cd /usr/lib64/cups/backend --If directory does not exist you have to make it.
ln -s /usr/bin/smbspool smb
**and**
cd /usr/lib/cups/backend
ln -s /usr/bin/smbspool smb
I hope that helps someone.
vinny2step
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09-08-2017, 04:14 PM
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#28
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LQ Newbie
Registered: Aug 2015
Location: England.
Distribution: Currently Peppermint 7
Posts: 28
Original Poster
Rep: 
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Hello all, it's official - bits of my brain have premature senile decay, bit of a drag! This hasn't gone away, I'm just waiting for a chance to pull myself together!
Meantime I really do appreciate your assistance.
Regards Ant
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