HP LaserJet Pro 400 color Printer M451 series - Manual (Page 99)

Replace
Description
The print cartridge is at the end of its useful life, and the product is customer configured to stop
printing when it reaches the very low state.
Recommended action
To ensure optimal print quality, HP recommends replacing the print cartridge at this point. You can
continue printing until you notice a decrease in print quality. Actual cartridge life may vary. Once an
HP supply has reached very low, HP's premium Protection Warranty on that supply has ended. All
print defects or cartridge failures incurred when an HP supply is used in continue at very low mode
will not be considered to be defects in materials or workmanship in the supply under the HP Print
Cartridge Warranty Statement.
Supplies low
Description
More than one supply item is low.
Recommended action
Check the supply level gauges on the control panel, or print a supplies status page to determine
which print cartridges are low.
Printing will continue until a Very Low message displays. Consider having replacement supplies on
hand.
Unsupported Press [OK] to continue
Description
The product has detected a print cartridge that was not made by HP.
Recommended action
Press the OK button to continue printing.
If you believe you purchased an HP supply, go to www.hp.com/go/anticounterfeit . Service or repairs
that are required as a result of using unsupported supplies is not covered under HP warranty.
Used in use
Description
You are using a print cartridge that reached the default low threshold while it was installed in a
product.
Recommended action
Printing can continue, but consider having a replacement supply on hand.
ENWW Solve problems with supplies 81