Knowledge Base

Unknown Toner Level message when printing on the Dell P1500, 1700(N), or S2500(N) Laser Printer

When trying to print a document with a Dell P1500, 1700(N), or S2500(N), the printer software produces the error message: Unknown Toner Level. This error is a result of the printer drivers not being able to communicate with the printer to obtain the toner level. Causes of the error include a disconnected printer, faulty printer cable, multiple instances of the printer installed, faulty toner cartridge, and/or faulty printer.

Ensure that the cable is connected and undamaged.

Ensure that the printer cable has not become disconnected from the computer or the printer. Also check that the printer has power and that the printer cable is not damaged in any way. Swap with a known-good printer cable.

Verify multiple instances of the P1500, 1700(N), and S2500(N) printer is installed and remove.

To determine that there are no duplicate printers installed, perform the following steps:

  1. Click the Start button.
  2. Click Control Panel.
    The Control Panel window appears.
  3. Double-click the Printers and Faxes icon.
    The Printer and Faxes window appears.
  4. If the printer is properly installed, it will list a Dell Laser Printer P1500, 1700(N), or S2500(N) and a Dell Laser Printer P1500, 1700(N), or S2500(N) PS3. Anything else listed as a P1500, 1700(N), or S2500(N) will cause problems.

If you observe multiple printer installations, perform the following steps:

  1. Disconnect the Dell Laser Printer P1500, 1700(N), or S2500(N) from the computer.
  2. Click Start, click Programs, Dell Printers, Dell Laser Printer (your model) , and then click Dell Printer Software uninstall.
    NOTE: You can also click Start, point to Settings, and then click Printers.
  3. Place a check in all available boxes for the incorrect Dell Laser Printer P1500, 1700(N), or S2500(N), click Next, and then click Uninstall Now.
  4. Restart the computer.
  5. Reconnect the Dell Laser Printer P1500, 1700(N), or S2500(N) to the computer and reinstall the printer driver with the latest available version from the Dell Support page.

Quick Tips content is self-published by the Dell Support Professionals who resolve issues daily. In order to achieve a speedy publication, Quick Tips may represent only partial solutions or work-arounds that are still in development or pending further proof of successfully resolving an issue. As such Quick Tips have not been reviewed, validated or approved by Dell and should be used with appropriate caution. Dell shall not be liable for any loss, including but not limited to loss of data, loss of profit or loss of revenue, which customers may incur by following any procedure or advice set out in the Quick Tips.

Article ID: SLN36767

Last Date Modified: 06/27/2016 03:22 AM

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