HP DesignJet 500, 510 and 800 Plotters - Printhead Errors

HP 11 Printheads marked with Warranty Ends dates in the ranges indicated below might fail on installation, resulting in a printhead error message.
Affected date range (YYYYMMDD format)
HP 11 Cyan, Magenta, Yellow (C4811A, C4812A, C4813A)
March 2020 and later (marked 20200301 and later in YYYYMMDD format)
HP 11 Black (C4810A)
April 2020 and later (marked 20200401 and later in YYYYMMDD format)
If you have printhead issues, follow these steps:
  1. On a Windows XP, 7, 8, or 10 PC with a USB connection to the printer, download a zip file with your firmware.
  2. Open the zip file and run the HP DesignJet 500/800 Firmware Upgrade Tool A.05.01.
  3. Wait for the upgrade to complete, and then turn the printer off, and then back on.
  4. If the steps above do not help please contact HP for a replacement , rather than returning to the retailer.