HP C7769B Service Manual - Page 61
Printheads, Enter, Installed - OK, Installed - Err xxxx, Installed - Unknown, Removed - OK
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Ink Supplies Troubleshooting 3 Press the ↑ or ↓ key until the front panel highlights Printheads. Press the Enter key. Log Menu Printheads Errors Back Enter 4 Press the ↑ or ↓ key until the front panel highlights the color that you want to see information on. Press the Enter key. Printhead history Select color: Black Yellow Magenta Cyan Menu Back Enter 5 The front panel displays the history of the last 5 Printheads of the selected color (use the arrow keys to scroll through the complete list). Press the ↑ or ↓ key until the front panel highlights the item number that you want to see information on. Press the Enter key. Printhead currently installed Black P/H history Select for more info: 1 Installed - OK 2 Removed - OK 3 Removed - too early 4 Removed - Err 0024 5 Removed - Err 0023 Menu Back Enter The status displayed for the last 5 Printheads could be any of the following: n Installed - OK: A Printhead is currently installed in the Printer and no error is detected. n Installed - Err xxxx: A Printhead is currently installed in the Printer and an error has been detected. For Printhead error codes, refer to Page 3-22. n Installed - Unknown: The status of the installed Printhead is unknown. n Removed - OK: The Printhead was replaced correctly after the minimum life expectancy of the Printhead was reached, without any error being reported. n Removed - too early: The Printhead was replaced before the HP DesignJets 500 and 800 Series Printers Service Manual 3-15