Hi I have a 542 toner sensor error

This error is an "Incompatible toner" error for using non-original Oki toner. The problem is the chip sensor cannot read the chip on the toner. So either the sensor is not working or the toner is defective.
Regards Abhilash How do u rate the service?

try a different toner first .... doesn't have to be a full one ... just a different toner box. had the same on a machine and it was only a bad toner cartridge. so the easiest thing to do is swap drum units with toner installed ...
if it turns out to be the cartridge you can have a look at the right side ... there is a hole in it and a white plunger moving there and gives the machine the current toner amount in the cart.

check ur cartridge.. it might wrong place

Hi dianabusk:
You have a bad K (Black) toner cartridge or the sensor is dirty,the sensors are located on the toner cartridge and in the machine where the toner cartridge seats. Try cleaning the sensors and/or replace the K (black) toner cartridge. The sensors are a silver color.

Hope this helps

Hi moneybaggz52:
Here is your problem.
Symptom:
When setting up a brand new C5100n or C5300n out of box, a toner sensor error is encountered.

The printer can display any one of the following errors:

543K: TONER SENSOR ERROR

540Y: TONER SENSOR ERROR

541M: TONER SENSOR ERROR

542C: TONER SENSOR ERROR
Cause:
This generally can be caused by two things.

1. The toner cartridge lock lever is not in the correct position.

2. The Transfer Belt lock levers are not in the correct position.
Resolution:

Check the appropriate toner cartridge lock lever (Shown below) and make sure that it is in the correct position.

CORRECT POSTITION INCORRECT POSITION


Check both transfer belt lock levers (Shown below) to ensure that they are in the correct position.

CORRECT POSITION


INCORRECT POSITION
Hopes this helps

press clear (yellow) and press 1,0,7 and press and HOLD the stop button 5 secs. (red) press 1 when u see the copy sp mode and press 7 (datalog) and press ok, look for the sc/ jam counter reset. press the execute 2x. turn of the machine in the main switch (orange switch on the lower front side) the shortcut mode is by pressing 7807 na press execute

Clean the sensor. Reset the printer and that should help you with this error. If thet doesn't work replace the toner cartridge.

Fatal Error 161-Toner Sensor Error, Color:Magenta
When magenta toner sensor error has occurred

Fatal Error 163-Toner Sensor Error, Color:Black
When magenta toner sensor error has occurred

Both are Sensor errors....You would first check the lock levers that hold the toner cartridges in, if everything is fine with them then you could possible have toner dust on the sensors. First take out the cartridge that you are having problems with, then use a dust off can and carefully clean out any axcess toner that you can see where the toner sits. there is a sensor that looks like a clear plastic or glass eye that reads the cartridges and it sometimes gets dirty.

Error SC 542 indicates a fuser temperature problem. Once the error is detected, the printer is toast until you manually clear the error from the keypad. Even though the printer is physically fine, it won?t come ready until the prior error condition is cleared. The magic keystrokes, clear the error code: The Fix In order to clear error SC542, you must perform procedure 5810. Press and hold online + escape, then power on. Use up and down arrow keys to select SP2 Press Enter Use up and down arror to locate SP5 Press Enter Use up and down arrow keys to select 810 Press Enter Confirm the selection Power off and on. The error code is now cleared.