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HP LaserJet Pro 400 Printer M401 - Print when a toner cartridge is at estimated end of life

Black Low: The product indicates when a toner cartridge level is low. Actual toner cartridge life remaining may vary. Consider having a replacement available to install when print quality is no longer acceptable. The toner cartridge does not need to be replaced now.
Black Very Low: The product indicates when the toner cartridge level is very low. Actual toner cartridge life remaining may vary. Consider having a replacement available to install when print quality is no longer acceptable. The toner cartridge does not need to be replaced now unless the print quality is no longer acceptable.
Once an HP toner cartridge has reached “very low”, HP’s Premium Protection Warranty on that toner cartridge has ended.
You can change the way the product reacts when supplies reach the Very Low state. You do not have to re-establish these settings when you install a new toner cartridge.

Enable or disable the At Very Low settings (LCD control panel)

You can enable or disable the default setting at any time, and you do not have to re-enable it when you install a new toner cartridge.
  1. On the product control panel, press the OK button to open the menus.
  2. Open the following menus:
    • System Setup
    • Supply Settings
    • Black Cartridge
    • Very Low Setting
  3. Select one of the following options.
    • Select the Continue option to set the product to alert you that the toner cartridge is very low, but to continue printing.
    • Select the Stop option to set the product to stop printing until you replace the toner cartridge.
    • Select the Prompt option to set the product to stop printing and prompt you to replace the toner cartridge. You can acknowledge the prompt and continue printing. A customer configurable option on this product is "Prompt to Remind Me in 100 pages, 200 pages, 300 pages, 400 pages, or never." This option is provided as a customer convenience and is not an indication these pages will have acceptable print quality.
Once an HP toner cartridge has reached Very Low, HP’s premium Protection Warranty on that toner cartridge has ended.

Enable or disable the At Very Low settings (touchscreen control panel)

You can enable or disable the default settings at any time, and you do not have to re-enable them when you install a new toner cartridge.
  1. From the Home screen on the product control panel, touch the Setup button.
  2. Open the following menus:
    • System Setup
    • Supply Settings
    • Black Cartridge
    • Very Low Setting
  3. Select one of the following options:
    • Select the Continue option to set the product to alert you that the toner cartridge is very low, but to continue printing.
    • Select the Stop option to set the product to stop printing until you replace the toner cartridge.
    • Select the Prompt option to set the product to stop printing and prompt you to replace the toner cartridge. You can acknowledge the prompt and continue printing. A customer configurable option on this product is "Prompt to Remind Me in 100 pages, 200 pages, 300 pages, 400 pages, or never." This option is provided as a customer convenience and is not an indication these pages will have acceptable print quality.
Once an HP toner cartridge has reached Very Low, HP’s premium Protection Warranty on that toner cartridge has ended. All print defects or cartridge failures incurred when an HP toner cartridge is used in Continue at very low mode will not be considered to be defects in materials or workmanship in the toner cartridge under the HP Print Cartridge Warranty Statement.

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