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Pixma MP495 offline problem with Mac 10.11


I know this an old printer, but it still works for my husband's old mac and it used to work well with my sort of old macbook.  Scanning by wifi is no problem, but wifi printing has been spotty until lately it has stopped.  The message is that it is not connected properly.  I tried all sorts of things -- checking settings, turning the printer off for 15 minutes (which worked in the past), turning the router off and on, and searched online for help.  Then I went to the canon website and downloaded the most recent drivers for my OS10.11, deleted the older printer (in preferences), and went through setting up the printer again.  It didn't show up in the searching step, so I connected my macbook to the printer by usb cable and configured it that way.  (And the network configuration page printout has all the right stuff.)  But when attempting to print by wifi, the message now says the printer is offline.  But, it will scan by wifi!!   Can anyone help me?  (Canon does not actively support this printer any more.)




I finally found in System Preferences an option for Firewall to allow printer access.  I didn't know it was blocked.  
And, I learned one more thing:  the configuring done with the usb cord doesn't work for wifi.  

After selecting the firewall option,  the IJ Network Tool configured the printer again.  It was necessary to go to Sys. Pref>Printer to add this newest configuration, as the one before with the usb cord was still marked as 'offline'.

(Back when phone support was still available for this model, I talked to a couple 'reps' who told me to configure with the usb cable if I was having trouble connecting.)

This printer is so old, I don't know if all this will help anyone, but here it is.

03/14/2023: New firmware version 1.8.1 is available for EOS R6

03/02/2023: New Firmware Updates Are Available:

EOS R7 - Version 1.3.0EOS R10 - Version 1.3.0
02/24/2023: We've updated Share Your Photos

2/07/2023: New product announcements!

EOS R8 EOS R50RF-S55-210mm F5-7.1 IS STMRF24-50mm F4.5-6.3 IS STMRF15-30mm F4.5-6.3 IS STM
01/18/2023: New firmware version 1.1.1 is available for EOS R6 Mark II
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01/03/2023: Welcome to CES 2023!
12/08/2022: New firmware version is available for EOS C70
12/07/2022: New firmware version 1.7.0 is available for EOS R5
11/22/2022: New firmware available for EOS R3, EOS R7 and EOS R10
11/16/2022: We're thrilled to be ranked among the Best Employers for Veterans in 2022 by Forbes.
08/31/2022: New firmware version 1.1.1 is available for RF 70-200mm L IS USM
08/09/2022: New firmware version 1.2.0 is available for CR-N 300
08/09/2022: New firmware version 1.2.0 is available for CR-N 500
07/14/2022: New firmware version 1.0.1 is available for CR-X300
06/10/2022: Service Notice:UPDATE: Canon Inkjet Printer continuous reboot loop or powering down
06/07/2022: New firmware version 1.3.2 is available for PowerShot G7 X Mark III
05/31/2022: Did someone SAY Badges?
05/26/2022: New firmware version is available for EOS-C500 Mark II
05/26/2022: New firmware version is available for EOS-C300 Mark III
05/10/2022: Keep your Canon gear in optimal condition with a Canon Maintenance Service
05/05/2022: We are excited to announce that we have refreshed the ranking scale within the community!
04/26/2022: New firmware version is available for EOS R5 C
03/23/2022: New firmware version is available for EOS-C70
02/09/2022: Share Your Photos is back!
02/07/2022: New firmware version 1.6.1 is available for EOS-1DX Mark III
01/13/2022: Community Update. We will be retiring the legacy profile avatars on 01/20/2022. Click this link to read more.