Hi, I believe I can help you. It seems like you need to reset the toner sensor.
Please do the following steps to reset the toner sensor.
– Open the front cover and leave open while completing the following steps.– Turn the printer off.– Hold the ‘go’ button while turning the printer on. All lights should be on.– Release the ‘go’ button (or “start’ button).– Press the ‘go’ button (or “start’ button) 2 times.– Pause. All panel lights should be on.– Press the ‘go’ button (or “start’ button) 5 times.The toner light should be off. (error may be flashing)The paper light should be on or flashing.– Close cover. The ready light should be the only light on.
Let me know how this works for you.
I am sorry it hasn't worked for you yet. Let's try this a bit differently.
turn off power, remove the toner, insert it again and then follow the above instructions once again?