@Dale761, Welcome to HP Support Community,
Thank you for posting your query; I’m here to help by guiding you through steps to resolve this issue
To perform a factory reset on your HP LaserJet Pro M15W, follow these steps:
- Turn off the printer.
- Press and hold the Wireless and Cancel buttons on the printer control panel.
- While holding the buttons, turn on the printer.
- Continue to hold the buttons until the Ready light starts blinking.
Reference:Restore factory defaults on your HP printer | HP® Support
If the printer continues to reprint the old job after the reset, you may need to clear the print queue on your Mac:
Clearing Print Queue on MacOS
- Open System Preferences.
- Select Printers & Scanners.
- Select your HP LaserJet Pro M15W printer from the list.
- Click Open Print Queue.
- Select the print jobs in the queue and click the X to delete them.
Further Troubleshooting Steps
If clearing the print queue and resetting the printer does not resolve the issue, you may want to try the following steps:
Update Printer Firmware: (Update the firmware on an HP printer | HP® Support)
- Make sure your printer's firmware is up to date. You can check for updates on the HP support website.
Reinstall Printer Drivers:
- Uninstall and then reinstall the printer drivers from the HP support website.
Check Printer Settings:
- Ensure the printer settings on your Mac are correctly configured and that there are no old print jobs stuck in the queue.
I hope this helps.
Please feel free to reply here if you have any questions or if you need further clarification on any of the steps.
Take care and have a good day.
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Regards,