Error code I have used the "continue" menu after refilling my toners and this worked great. Now I get an error code: "Err: line 2408" which I can not get past. Service manual I have does not list this code.

Error: "Invalid Toner Cartridge"; Error: "Invalid Refill"; Message: "Change Cartridge"
Solution
One of these error messages may appear on the printer display immediately after or shortly after a new toner cartridge is installed into the printer. Note: This may not be specifically a toner cartridge problem; the error may be due to a stuck cover open switch on the printer.

To see if the cover open switch is the cause of this problem, open the top front cover and observe the message on the printer's display panel. The display should read Close Door or Insert Cartridge.


If this message is not displayed, the top cover open sensor and switch will need to be replaced. In addition, the printer may have damaged the new toner cartridge. If the cover open sensor is not operating properly, a new cartridge can be incorrectly flagged as a refilled cartridge by the printer. If this happens, the new cartridge will continue to cause an Invalid Refill or Invalid Cartridge error even if you try reinstalling it or installing it into another printer. If this should occur, please contact the point of purchase of the cartridge to find out how to get the cartridge replaced.

Caution: If the cover open sensor is not operating, do not install another new toner cartridge until you have completed the directions below. Inserting another new cartridge can cause that cartridge to stop working as well. Should this situation arise, please take the following actions:


Place the original working cartridge (the empty or near-empty one) back into the printer. This should clear the error message.

Turn the printer off. Doing this will disengage the cover open sensor.

With the printer switched off, open the top lid and remove the old toner cartridge.

Now replace the old cartridge with another new Lexmark toner cartridge.

Power the printer back on. The printer should now read this cartridge as a newly installed toner cartridge and the error should be cleared. The printer and toner cartridge should function properly now, but the top cover sensor on the printer will still need to be replaced.

If your printer is still under warranty or covered under a service contract, please contact Lexmark Technical Support or your service provider for further recommendations and instructions. Until you can get the cover open switch replaced, remember to have the printer powered off whenever you replace the toner cartridge.

If the top cover switch appears to be working fine, or if you have followed the above steps and your printer continues to post an Invalid Toner Cartridge or Invalid Refill error, make sure you are using a new original Lexmark toner cartridge. A toner cartridge remanufactured or refilled by a third party can cause this error.

To help identify a refilled cartridge, look for the yellow label attached to the toner drum and the body of the toner cartridge. If this is damaged or removed, the cartridge may have been refilled.

If you are using a third-party refilled or remanufactured toner cartridge, it is recommended that you install a new Lexmark brand toner cartridge. Lexmark cannot guarantee the compatibility of any third-party toner cartridges with our printers.

OR

1 Switch on the Lexmark X83 printer.

2 Lift open the cartridge door at the front of the device, below the scanner unit. The printer automatically moves the cartridge carrier to the correct position.

3 Pull each ink cartridge toward you to unclasp it from the carrier. Lift the cartridge out of the cartridge carrier.

4 Clean the copper contacts on the bottom of each cartridge with a clean, dry lint-free cloth. Use a gentle, circular motion to clean the contacts.

5 Insert the ink cartridges back into the cartridge carrier. Push back firmly on each cartridge until it snaps into place.

6 Repeat each step in this procedure again. Close the cartridge door.

2408 means that the toner cartridge you are trying to rotate to is already in the top position or you need to install another toner cartridge before you can rotate to the color you want to replace.

To fix the toner not installed message clean the three contacts on green chip on the right side of the toner cartridge. You may see black lines on them. Use an eraser or rubbing alcohol.

Check the TONER Cartridge and Reinstall it

CRU Fuse Error Means : The toner cartridge is not installed correctly


You can set the machine to ignore the “[Toner Empty]”
message and to continue printing incoming faxes.

Ignoring the Toner Empty Message

1 Press Menu until “Machine Setup” appears on the display.
2 Press the scroll button < or > until “Ignore Toner”
appears on the bottom line and press Enter.
3 Press the Scroll button < or > to select “On” or “Off”.
Select “On” to ignore the [Toner Empty] message.
Select “Off” to stop printing incoming faxes when the
message appears. This is the default setting.
4 Press Enter to save the selection.
5 To return to Standby mode, press Stop/Clear.

Yeah you can refill your cartridge. It is really easy and consists of removing the plug on the side of the cartridge, dumping out any old toner and dumping in the new toner. Its very easy. I have purchased refill kits from both of these sites in the past and its worked great:

www.tonerrefillstore.com

www.lasertekservices.com

They also have great customer service. I hope this helps!

never ver use refil toner on brother products. to answere your first question 1 open the front cover 2 push menue button scroll down to machine info press set buton 3 scroll down to drun lif - push set

You need to clear this fuser roller heat rod error in svc mode.

Additional Functions="star"
2and8= hit both keys same time.

Svc mode= star 2and8 star

copier/functions/clear/err/ok

reboot

If there is areal problem with fuser heat rods it will code again.

2408 means that the toner cartridge you are trying to rotate to is already in the top position or you need to install another toner cartridge before you can rotate to the color you want to replace.

To fix the toner not installed message clean the three contacts on green chip on the right side of the toner cartridge. You may see black lines on them. Use an eraser or rubbing alcohol.

i have the same problem. my printer says all of the toner cartridges are not installed. i have taken each one out and returned them, and have rebooted the printer multiple times. nothing helps.

In 3 second make combination on you Samsung 4521F 'Menu'-#-1-9-3-4. You will enter in tech menu. Select 'toner'-new toner-yes. You will receive faxes. It really works.