User Guide

Accept bad signature
Description
The product is performing a remote firmware upgrade, and the code signature is invalid.
Recommended action
Download the correct firmware upgrade file for this product, and then reinstall the upgrade. See the
product user guide for more information.
Bad optional tray connection
Description
The optional tray is not connected, not connected correctly, or a connection is not working correctly.
Recommended action
1. Turn the product off.
2. Remove and reinstall the optional tray.
3. Reconnect connectors for the tray.
4. Turn the product on.
Black Cartridge low
Description
The toner cartridge is at the low condition.
Recommended action
Actual supply life remaining may vary. Consider having a replacement available to install when print
quality is no longer acceptable. The supply does not need to be replaced now.
NOTE: When an HP supply has reached its approximated end of life, the HP Premium Protection
Warranty ends.
Black Cartridge very low
Description
The toner cartridge has reached the very low condition.
Recommended action
Actual supply life remaining may vary. Consider having a replacement available. The supply does not
need to be replaced now unless the print quality is no longer acceptable. Once an HP supply has
reached the very low condition, HP's warranty on that supply has ended.
NOTE: When an HP supply has reached its approximated end of life, the HP Premium Protection
Warranty ends.
ENWW
Tools for troubleshooting
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