09-08-2017 04:54 AM
I've looked through a numer of 'solutions' to this problem, on this website and also on Microsoft and other places, non have yet provided a definitive solution. Canon should be ashamed of themselves for allowing this issue to go unresolved for so long. I for one, will never be buying Canon again.
09-27-2017 06:07 PM
Open elevated cmd prompt (as administrator)
copy & paste as below
1 enter: <net stop spooler>
2 enter: <del %systemroot%\System32\spool\printers\* /Q>
3 enter <net start spooler>
should work on all printers.
11-29-2017 07:58 PM
I've tried several things but think I've come up with a consistant way to correct the problem. I say this because my solutions seems to always work. What I do is Reboot the wifi and or routers appear to always work. Now as far as a permanent solution I dont claim this to be. After rebooting, the printer will work without the "Another computer is using the printer" error for several hours or days but as of yet has not been the fix all. Not sure what the issue is as it could be spotty wifi or internet but I'm guessing the internals of the print software sometimes doesn't always send and end of job message to the print service. If this doesn't work for any of you, let us all know but I do know its solve the problem for me immediatly over several months and seems to last for awhile.
01-29-2018 03:26 PM
I just had this occur recently, and it's 2018!!! So, first i tried changing the spooler setting which didnt work. then reset the router which didnt work. then reinstalled the dang printer which is a pixma and just a year old. that didnt work. then, went ahead and put in new ink cartridges, and lo n behold the dang printer started printing stuff i'd wanted all darn morning!!
i have window 8.1, but it also affected my other computer which has win 10. this is no doubt a darn software problem with canon and they are not either fixing or letting people know how. But, the darn thing works now, so try what i did.
01-29-2018 04:55 PM