M281 major streak issue when printing

[BenBatt]

MFP M281 Was working great.  Moved and put into storage for approx 9 months.  Got it going again and am getting a huge streak down right side.  The test page came back perfect execpt for the streaks which are on every page I print.  Tried to clean it, opened up and blew off any printer dust

[zoey7886]

@BenBatt, Welcome to the HP Support Community!  

Thanks for reaching out about your query regarding your HP Laserjet! 

We're thrilled to have the opportunity to assist you and provide a solution.  

It sounds like your MacBook is still caching the old, expired certificate. Try the following steps to resolve the issue:

Remove and Re-add the Printer

• Go to System Settings > Printers & Scanners on your Mac.
• Select your HP Smart Tank 7605 and remove it by clicking the minus (-) button.
• Restart your MacBook.
• Re-add the printer by clicking the plus (+) button and selecting it again.

Clear Keychain Access Entries

• Open Keychain Access on your Mac (search for it using Spotlight).
• In the search bar, type HP.
• Look for any certificates related to your printer.
• Right-click on them and select Delete.
• Restart your Mac and try printing again.

Manually Trust the New Certificate

If your Mac still complains about the expired certificate:

• Go to System Settings > Printers & Scanners.
• Click Options & Supplies for your printer.
• Find the SSL certificate settings and check if you can manually trust the newly generated certificate.

Reset the Printing System

• Go to System Settings > Printers & Scanners.
• Right-click (or Control + Click) anywhere in the printers list and select Reset printing system.
• This will remove all printers, so you'll need to re-add them.

Update Printer Firmware

• Open HP Smart App on your Mac.
• Check if there's a firmware update available for your printer and install it.

Try these steps and let me know if the issue persists! 😊  

Take care, and have an amazing day!  

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Regards,