Here is a product installation guide based on the provided description:

Extra High Capacity Remanufactured Toner Cartridge Replacement for Compatible Printers Black Yield 24600 Pages for Versalink Models B400 and B405DN

Preparation:

Before starting the installation, please ensure that you have the following tools and materials:

• The remanufactured toner cartridge (the one you are replacing)
• The printer (Versalink B400 or B405DN)
• A screwdriver (preferably a Phillips head screwdriver)
• A paper clip or a small pin
• A waste toner container (if applicable)

Step 1: Turn off the printer and unplug it from the power source

Make sure the printer is turned off and unplugged from the power source to prevent any electrical shock or injury.

Step 2: Open the printer's front cover

Locate the front cover of the printer and gently pull it open. You may need to release a latch or press a button to open it.

Step 3: Remove the old toner cartridge

Gently pull the old toner cartridge out of the printer. It may be stuck, so be careful not to touch any electrical components.

Step 4: Remove any protective covering from the new toner cartridge

Take the new remanufactured toner cartridge and remove any protective covering or tape from the cartridge.

Step 5: Insert the new toner cartridge

Align the new toner cartridge with the printer's slot and gently push it in until it clicks into place.

Step 6: Close the front cover

Close the front cover of the printer and ensure it is securely locked.

Step 7: Turn on the printer and print a test page

Plug in the printer and turn it on. Print a test page to ensure the new toner cartridge is working properly.

Tips and Reminders:

• Make sure to handle the toner cartridge by the handle or the edges to avoid touching the sensitive electronic components.
• Avoid touching any electrical components or metal parts to prevent damage.
• If you encounter any issues during installation, please refer to the printer's user manual or contact the manufacturer's support team.
• Regularly clean and maintain the printer to ensure optimal performance and print quality.