Here is my printer's serie number :[Personal Information Removed]. I just bought a new IMac, my printer doesn't work

[KAT517]

The printer is recognized by the computer ; but it doesn't work anymore. Could you answer me in Frenc?h

[Kumar0307]

@KAT517, Welcome to the HP Support Community! I’m here to help.

This is an English support forum. I can assist you in English. Or, if you prefer, you can visit the HP Support website, to find the support channel for your region. 

I See that you are not able to print from the Mac. This is an end-of-life printer. Support options are limited.

Due to its age, there are no drivers available for this printer to work on macOS 10.9 or later on the HP Support site.

This printer is not AirPrint compatible too.

However, Gutenprint (formerly called Gimp-Print) provides open-source basic print drivers for many printers that would otherwise not be supported in Mac OS X. To see if your printer is supported, go to Gutenprint drivers for more information.

NOTE: Gutenprint drivers are not supported by HP or Apple.

P.S: You may follow the steps mentioned in this thread by a Community Expert.

Keep me posted for any other assistance. 

Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

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Have a great day!