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I couldn't get the cups "move files, restart, move files back, restart, reset printer" shenanigans to work no matter what I tried, but replacing the cups files with the ones from my High Sierra backup worked great.
 
Apple did test it. They noticed that printing doesn't work well and put it in the release notes!

"Doesn't work well'??? Doesn't work at all you mean!!
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Is anyone else having issues?

I've got the latest PB and when printing I'm getting this error:

Stopped - Unable to startup session, error = -10, 1 page


Using MacBook Pro with HP Envy 5532


Any help would be greatly appreciated
Apple taking on the old repairer's ethic of "Fix one problem, create three others"!!!
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You would also hope that people would heed the warning the Apple give with every pre release 'ONLY USE ON A DEVICE INTENDED FOR BETA TESTING' If printing isn't working, then the only people to blame are end users stick a beta release on their working machine!
You can't fully test a Beta version on a non-working machine, though.
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I should have clarified - I moved the contents to of the CUPS folder to the desktop ( which required ADMIN ) then deleted them from the original - Restarted, then moved the contents back ( which required admin ) and restarted.

Once I tried to print - "printer needs repair " which I hit and it worked. Also may need to hit the green pause button to make the printer live again - Hope this helps!

Unfortunately, if you're the one smart enough to come up with a great 'fix' you're the one us idiots pester!!

In your initial post, you mentioned replacing the Mohave cups folder with the High Sierra version. In this post, am I right in reading that you no longer need to replace the cups folder, simply copy/delete the files from it??

Cheers...>Scotty
 
i know this isn't a solution, but it is getting me through the lack of printing. i have an epson et-4750 which you can configure to receive emails sent to xxx@print.epsonconnect.com - i just copy and paste the print document into an email, and send it to myself. i'm sure canon and hp have similar capabilities..

jd
 
"Doesn't work well'??? Doesn't work at all you mean!!
[doublepost=1534036630][/doublepost]
Apple taking on the old repairer's ethic of "Fix one problem, create three others"!!!
[doublepost=1534036782][/doublepost]
You can't fully test a Beta version on a non-working machine, though.
[doublepost=1534038594][/doublepost]

Unfortunately, if you're the one smart enough to come up with a great 'fix' you're the one us idiots pester!!

In your initial post, you mentioned replacing the Mohave cups folder with the High Sierra version. In this post, am I right in reading that you no longer need to replace the cups folder, simply copy/delete the files from it??

Cheers...>Scotty

It seems like there are two ways that work: 1) is to replace the contents of the cups folder with the high Sierra contents. The second way is simply to copy the contents of the Mojave cups to your desktop, then delete the contents in the cups folder so the cups folder is empty. Reboot twice, then move the Mojave contents from your desktop back to cups, reset the printing system and re-add the printers.
I used the second method as I did not have a high Sierra backup.
Hope this helps
good luck
 
From my understanding why the printers are not working is due to the fact that the drivers are 32 byte drivers vs 64 byte.
 
Ok, HP automaticly downloaded an update to my printer , I reset printer, added again and it now works. Relief!!
 
It seems like there are two ways that work: 1) is to replace the contents of the cups folder with the high Sierra contents. The second way is simply to copy the contents of the Mojave cups to your desktop, then delete the contents in the cups folder so the cups folder is empty. Reboot twice, then move the Mojave contents from your desktop back to cups, reset the printing system and re-add the printers.
I used the second method as I did not have a high Sierra backup.
Hope this helps
good luck
Thanks very much. About to give it a go.
 
It seems like there are two ways that work: 1) is to replace the contents of the cups folder with the high Sierra contents. The second way is simply to copy the contents of the Mojave cups to your desktop, then delete the contents in the cups folder so the cups folder is empty. Reboot twice, then move the Mojave contents from your desktop back to cups, reset the printing system and re-add the printers.
I used the second method as I did not have a high Sierra backup.
Hope this helps
good luck
Think I must have stuffed something up.

Followed your instructions, moved Cups content and rebooted computer twice. Then put Cups content back in original location.

On trying to print a document, the Printer Window shows the document as printing and being 21% complete. Nothing is showing on the printer as happening though. The error log shows "Unable to get printer status."
 
Think I must have stuffed something up.

Followed your instructions, moved Cups content and rebooted computer twice. Then put Cups content back in original location.

On trying to print a document, the Printer Window shows the document as printing and being 21% complete. Nothing is showing on the printer as happening though. The error log shows "Unable to get printer status."

copy and remove from cups folder,
then reboot,
put the above back,
then reboot,
then reset printing system,
then power cycle your printer
then add the printer anew.

removing, putting back, and then rebooting twice is not the same as above. (I made the same mistake, plus resetting printing system is right mouse click on the installed printer, and selecting reset. reset here is not the same as power cycling your printer (which also needs to be done).
 
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did you: 1) reboot the printing system and 2) re-add the printer prior to printing? Did you add and try both Airprint and CanonIJNetwork print profiles? Did you try printing a word doc or pdf....or did you try to print a web page? I find issues with some web page printing, but word and other pdf's print correctly. Keep trying, it will work
 
Hi!
I've tried twice the second way and I'm always with an error message.
That doesn't work for me and my HP DESKJET 3520.
I've now a new message " stopped - 2 pages "
GGERARD


upload_2018-8-13_13-36-10.png
 
What worked for me is:
1) create a new folder on the desktop
2) search for /usr/libexec and move the contents of the cups folder to your new desktop folder
3) the cups folder should be empty at this point.
4) restart twice, reset printer system and disconnect power from printer. Plug in after 30 sec.
5) move the contents from your desktop folder back into the cups folder
6) go into preference printers and re-add printer.

You should be able to print at this point. Big thanks to Marc mjm

I restarted after moving Cups content to my desktop, and the restarted again after copying everything back. Reset the print system and reconnected my printer. It worked like a charm.

I didn't restart my printer.

My printer is a Brother DCP-J552DW
 
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worked here with HP printer. done it twice now, one to go

copy/delete from /usr/libexec/cups to some folder somewhere
reboot
copy back from folder to /usr/libexec/cups
reboot
open sys prefs, go to printers and scanners. highlight existing printer, right mouse click and choose reset option.
restart your printer (physically disconnect from power, wait, restart)
then... add the printer back again.

restarting the printer (power down, power up), wasn't required the 2nd time I tried this.

crazy that this workaround works, but okay, it does.

it's the right mouse click, reset option that was new for me.
Thank you so much for the clear, detailed instructions--it worked perfectly on my Brother printer!
 
I should have clarified - I moved the contents to of the CUPS folder to the desktop ( which required ADMIN ) then deleted them from the original - Restarted, then moved the contents back ( which required admin ) and restarted.

Once I tried to print - "printer needs repair " which I hit and it worked. Also may need to hit the green pause button to make the printer live again - Hope this helps!
How are you deleting the original? I cannot move or delete- only copy. What is the secret to changing the privileges?

I can make a copy of cups on desktop.

But I have no write privileges so any attempt to delete or restore old version to cups fails.
 
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Is anyone else having issues?

I've got the latest PB and when printing I'm getting this error:

Stopped - Unable to startup session, error = -10, 1 page


Using MacBook Pro with HP Envy 5532


Any help would be greatly appreciated
I'm having the same issue using a MacBook Pro with an HP 8600 Pro
 
How are you deleting the original? I cannot move or delete- only copy. What is the secret to changing the privileges?

I can make a copy of cups on desktop.

But I have no write privileges so any attempt to delete or restore old version to cups fails.

Don't try to move or do anything to the cups folder, but rather to the contents of that folder
 
Out of interest, what actually happened?
Found the cups folder
Copied the cups folder to a desktop folder
Restarted
Deleted the original cups folder
Placed the copied cups folder into the original place...
Restarted and it works. why? Magic I think!
 
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Ok- made it work.

For me the steps as listed did not work. I followed these steps:

"1) create a new folder on the desktop

2) search for /usr/libexec and move the contents of the cups folder to your new desktop folder

3) the cups folder should be empty at this point.

4) restart twice, reset printer system and disconnect power from printer. Plug in after 30 sec.

5) move the contents from your desktop folder back into the cups folder

6) go into preference printers and re-add printer.

You should be able to print at this point. Big thanks to Marc mjm"


What DID work for me was following these steps but also restoring the cups from Time Machine.
 
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