TR7520 'printer in use' message comes up when attempting to print. Running MAC OS.

[Jwarnett]

Rebooted all devices: iPhone, MacPro & printer.  Reloaded printer driver.  Nothing will clear the problem.

[Patrick]

Hi Jwarnett,

Let's perform a test of your printer:

1.  Please press the Home button on your PIXMA TR7520 one time.

2.  Tap gear icon at the bottom of your printer's display.

3.  Tap Maintenance.

4.  Tap Print nozzle check pattern.

5.  Tap Yes.

Does the test page print?

If not, what error appears?

Please note, Canon's Forum is not intended for immediate help, but a place to allow for the Community to give you assistance and feedback. For a quicker response, please use the link below to log into your My Canon account to reach Canon's Technical Support Team:

https://mycanon.usa.canon.com

Once logged in, click on your PIXMA TR7520 and then click on the Product Support button. When that page loads, click on either the Phone Support button or the Chat Support button to access support.

Did this answer your question? If so, please click the Accept as Solution button below so that others may find the answer as well.

[Jwarnett]

Thanks for your response Patrick.  Before I received the response I did a full shutdown and cold start on router, computer and printer which ultimately cleared the problem.  I will, however, retain your recommended procedure in the event the problem occurs again.