https://community.usa.canon.com/t5/Professional-Photo-Printers/Printer-is-being-used-by-another-computer/m-p/151922#M2386 I kept getting the message "printer is being used by another computer" the way I solved this was...first let me explain how I believe it started. I had refreshed my laptop and therefore needed to reinstall the printer. Instead of using the disc that came with the printer I went online and used their software. Well when it installed the printer had a WS at the end of its name. That's when I believe the error message started. So I removed the printer with the WS after its name and reinstalled using the original disc that came with it (Pro-100) and that resolved the problem. Also the name no longer has the WS after it. Sat, 19 Sep 2015 19:09:10 GMT Ranger1079 2015-09-19T19:09:10Z https://community.usa.canon.com/t5/Professional-Photo-Printers/Printer-is-being-used-by-another-computer/m-p/151922#M2386 I kept getting the message "printer is being used by another computer" the way I solved this was...first let me explain how I believe it started. I had refreshed my laptop and therefore needed to reinstall the printer. Instead of using the disc that came with the printer I went online and used their software. Well when it installed the printer had a WS at the end of its name. That's when I believe the error message started. So I removed the printer with the WS after its name and reinstalled using the original disc that came with it (Pro-100) and that resolved the problem. Also the name no longer has the WS after it. Sat, 19 Sep 2015 19:09:10 GMT https://community.usa.canon.com/t5/Professional-Photo-Printers/Printer-is-being-used-by-another-computer/m-p/151922#M2386 Ranger1079 2015-09-19T19:09:10Z