• Code: 10.23.60
• Display: <Supply> low OR Supplies low
• Description: The product indicates when a supply level, or more than one supply, is low. Actual print cartridge life might vary. You do not need to replace the print cartridge at this time unless print quality is no longer acceptable. When multiple supplies are low, more than one event code is recorded.
  Fuser Kit
• Remedy: If print quality is no longer acceptable, replace the supply. HP recommends that the customer have a replacement supply available to install when print quality is no longer acceptable.

• Code: 10.23.60
• Display: 10.23.60
• Description: The product indicates when the fuser kit is very low. The actual remaining fuser kit life might vary. You do not need to replace the fuser kit at this time unless print quality is not acceptable.
• Remedy: Replace the fuser kit if print quality is not acceptable.

• Code: 10.23.70
• Display: <Supply> very low OR Supplies very low
• Description: The product indicates when a supply level, or more than one supply, is very low. Actual print cartridge life might vary. You do not need to replace the print cartridge at this time unless print quality is no longer acceptable. When multiple supplies are low, more than one event code is recorded.
  Fuser Kit
• Remedy: If print quality is no longer acceptable, replace the supply. HP recommends that the customer have a replacement supply available to install when print quality is no longer acceptable.

• Code: 10.23.70
• Display: 10.23.70 Printing past very low
• Description: The product indicates when fuser kit is very low. The actual remaining fuse kit life might vary. You do not need to replace the fuser kit at this time unless print quality is no longer acceptable.
• Remedy: If print quality is no longer acceptable, replace the fuser kit. See the parts chapter in the service manual for the fuser kit part number.

• Code: 10.23.70
• Display: Replace <supply>
• Description: This alert appears only if the product is configured to stop when a supply reaches the very low threshold. The product indicates when a supply level is at its estimated end of life. The actual life remaining might be different than estimated. The supply does not need to be replaced now unless the print quality is no longer acceptable. HP recommends that the customer have a replacement supply available to install when print quality is no longer acceptable. The product can be configured to stop when the supply level is very low. The supply might still be able to produce acceptable print quality.
  Fuser Kit
• Remedy: Replace the specified supply. Or, configure the product to continue printing by using the Manage Supplies menu.

• Code: 10.23.70
• Display: Replace Supplies
• Description: This alert appears only if the product is configured to stop when a supplies reach the very low threshold. Two or more supplies have reached the estimated end of life. The product indicates when a supply level is at its estimated end of life. The actual life remaining might be different than estimated. The supply does not need to be replaced now unless the print quality is no longer acceptable. HP recommends that the customer have a replacement supply available to install when print quality is no longer acceptable. NOTE: When an HP supply has reached its approximated end of life, the HP Premium Protection Warranty on that supply ends. Recorded event codes depend on which supplies are at the end of life.
  Fuser Kit
• Remedy: Press the OK button to find out which supplies need to be replaced. Or, configure the product to continue printing by using the Manage Supplies menu.

• Code: 10.31.15
• Display: 10.YY.15 Install <supply>
• Description: The indicated supply has been removed or installed incorrectly.
  TCU
• Remedy: Replace or install the indicated supply.

• Code: 10.31.15
• Display: Install <supply> Close rear door
• Description: The toner collection unit has been removed or has been installed incorrectly. Toner collection unit
• Remedy: Replace or reinstall the toner collection unit correctly to continue printing.