Printer printing blocks instead of letters

[Cscheer32]

My Deskjet 2540 printer is printing black blocks instead of printing letters. Ink Cartridges have been replaced. Example photo is attached.

[Kumar0307]

Hi @Cscheer32

Welcome to the HP Support Community. I'd be happy to assist you.

• Which application are you trying to print from?
• Have you tried printing different types of documents like PDF, Word, or Webpages and check if the issue persists?
• Try making a standalone copy and check if that works. By this, we can conclude if this is a hardware or a driver issue.

Update the printer firmware

Click here to download and install the latest firmware from your MAC.

Also, check for any software updates on MAC

Click the Apple icon > About This Mac > Software Update and install any available update.

Print a printer self-test page

1. Touch and hold the Power button (), and then press the Cancel button ().

2. Let go of the Cancel button and then the Power button. The test page prints.

Hope this helps! Keep me posted. 

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!