After replacing your Toner or Drum you get this message: “Toner Sensor Error”.
Possible Cause #1: Toner cartridge may not be locked into the Drum properly or the Toner/Drum unit may not be locked into the printer correctly.
Resolution: Check the Toner cartridge Lock Lever (Figure 1) and make sure it is in the LOCKED position.
Possible Cause #2: Error may occur if the plastic Shutter / Flap on the side of the Toner cartridge is fully or partially down blocking the Toner Sensor window (AP Series printers).
Resolution: Move the Flap upward and out of the opening to allow for the Toner Sensor to become fully exposed prior to reinstalling the Toner and Drum combination. This is a simple, easy step you can perform. (Ref. Figure 2)
The safest way to move this shutter is either with a toothpick or something plastic. Do NOT use a paper clip or anything metal to move the shutter. A metal object may short out the sensor making the Toner cartridge useless.
Possible Cause #3: The Drum or Toner may be defective.
§ Remove the Toner/Drum assembly (without touching the blue locking lever).
§ Look inside the printer to locate the sensor for the Toner/Drum assembly.
§ Blow canned air into the sensor to clear out any possible dust.
§ Wipe the sensor clean with an alcohol wipe.
§ Re-insert the Toner/Drum assembly into the printer.
§ Swap the Toner/Drum assembly (without touching the blue locking lever) with another Toner/Drum assembly (if available).
§ If the Error stays with the Toner/Drum assembly, then you can assume the Toner/Drum is defective.
o Normally you would start by replacing the Toner first. If that does not resolve it, then try replacing the Drum.
o If the Error stays with the same location, then you can assume the Printer is defective.
If you need further assistance, please email us at firstname.lastname@example.org or call us at Customer Support (1-347-983-2288).