Error states replace toner cartridge...

The manual will explain in great detail how to replace the toner cartridge. Please take care do it as said, because just a spec of dust, or a scrap of paper (plastic) on the chip, also can cause the error notice. Even with a brand new cartridge.

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.

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A 929 Service Toner Sensor error indicates a problem with the toner sensor, the front harness cable, or the developer drive. It could also mean that the toner cartridge is defective.
The most likely cause of this error is the toner cartridge itself. This is especially true if it is a new cartridge and the error started after you installed it.
To solve it try this:

Take the cartridge out of the printer and locate the encoder wheel on the right-hand side of the cartridge. The encoder wheel can be found on the right side of the cartridge (usually over a bar code sticker). It is a thin, black, plastic wheel with small rectangular notches cut into it. This wheel will sometimes get stuck, but you can free it by turning it by hand.
Try moving the wheel forwards and backwards a little. If it does not turn correctly, you will receive a 929 Toner Sensor error on the printer when you try to use the cartridge it is attached to
Note: The encoder wheel moves only a little bit each way. It should not make a complete revolution. If it does, the wheel is probably broken.
Try to move it a little bit each way a couple of times to see if you can free it up. Caution! DO NOT force the wheel as you could break it.
If the wheel on the toner cartridge is stuck, try another new toner cartridge. ( If you do not have another new toner cartridge available, an old toner cartridge or another cartridge from a working printer of the same model will also suffice for this test.)
Power the printer off and install the second toner cartridge. Then power the printer back on. If another toner cartridge clears up the 929 error, the printer is fine and the problem is with the toner cartridge.
If the error does not clear, there may be a problem with the printer.
If you narrow down the problem to the toner cartridge, call the point of purchase and explain the situation to them. They may have a replacement policy.
If you receive this error with a second toner cartridge, you may want to check if the Front Harness Cable is plugged into the Toner Sensor then Do the following:

Turn off the printer and remove the toner cartridge.
Look inside the printer at the place where the cartridge goes (on the right). You should see the Toner Sensor. On the back of the sensor assembly, you should be able to see a white cable connector.
Push this white cable connector into the toner sensor assembly by pushing the connector towards the front of the printer.
If you continue to receive the 929 error the final option is your printer will probably need service.


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put back the sping. at the sensor of toner beside the pick-up roller..

A 929 Service Toner Sensor error indicates a problem with the toner sensor, the front harness cable, or the developer drive. It could also mean that the toner cartridge is defective.

• The most likely cause of this error is the toner cartridge itself. This is especially true if it is a new cartridge and the error started after you installed it.

1. Take the cartridge out of the printer and locate the encoder wheel on the right-hand side of the cartridge. The encoder wheel can be found on the right side of the cartridge (usually over a bar code sticker). It is a thin, black, plastic wheel with small rectangular notches cut into it. This wheel will sometimes get stuck, but you can free it by turning it by hand.
2. Try moving the wheel forwards and backwards a little. If it does not turn correctly, you will receive a 929 Toner Sensor error on the printer when you try to use the cartridge it is attached to. Note: The encoder wheel moves only a little bit each way. It should not make a complete revolution. If it does, the wheel is probably broken.
3. Try to move it a little bit each way a couple of times to see if you can free it up. Caution! DO NOT force the wheel as you could break it.
4. If the wheel on the toner cartridge is stuck, try another new toner cartridge. ( If you do not have another new toner cartridge available, an old toner cartridge or another cartridge from a working printer of the same model will also suffice for this test.) Power the printer off and install the second toner cartridge. Then power the printer back on. If another toner cartridge clears up the 929 error, the printer is fine and the problem is with the toner cartridge. If the error does not clear, there may be a problem with the printer.
5. If you narrow down the problem to the toner cartridge, call the point of purchase and explain the situation to them. They may have a replacement policy. If they cannot help you, call our Technical Support Center and we will see what we can do to replace the cartridge that is causing the error. We will not be able to reimburse the price of the cartridge, but we can offer you an exchange. To do this, we may ask you to send in your cartridge first. Please note that we cannot offer an exchange on a refilled or refurbished cartridge. For this, you must go through the point of purchase.
   Click here to order toner cartridges and other supplies for your printer.

• If you receive this error with a second toner cartridge, you may want to check if the Front Harness Cable is plugged into the Toner Sensor. Do the following:
  
  1. Turn off the printer and remove the toner cartridge.
  2. Look inside the printer at the place where the cartridge goes (on the right). You should see the Toner Sensor. On the back of the sensor assembly, you should be able to see a white cable connector.
  3. Push this white cable connector into the toner sensor assembly by pushing the connector towards the front of the printer.

• If you continue to receive the 929 error, your printer will probably need service.

Source: Lexmark KnowledgeBase

If you have changed the toner cartridge, the printer must complete a calibration cycle (up to 150 seconds). If you open the door before the Ready indicator on the control panel lights up and the Error indicator turns off, the printer stops and repeats the calibration cycle.

1. Open the Status Display (double-click on Status Display icon in the system tray on the lower right-hand portion of the task bar, OR click Start/Programs/KONICA MINOLTA magicolor 2300W Utilities/KONICA MINOLTA magicolor 2300W Status), and then check which toner color is empty.
2. From the Print menu choose Toner Replace...
3. In the Color list box, select the color of the toner cartridge to be replaced (CYAN, MAGENTA, YELLOW, or BLACK).
4. Select the capacity of the new toner cartridge (1500 or 4500).
5. Click OK.
6. When the toner indicator on the control panel starts flashing, open the printer's front door. The carousel is automatically repositioned so that the appropriate toner cartridge can be removed.
7. Insert your thumb and index finger into the two holes in the front of the toner cartridge, and then pull the cartridge straight out about 6" (15 cm).
8. Support the middle of the cartridge with your left hand, and then pull out the cartridge.
9. Remove the new toner cartridge from its shipping carton.
10. Remove the protective cover clearly marked 'Remove'.
Each toner cartridge has a colored end that corresponds to a color inside the cartridge slots. Always install the toner cartridge in the slot of the same color.
Each toner cartridge has a colored end that corresponds to a color inside the cartridge slots. Always install the toner cartridge in the slot of the same color.
11. Support the middle of the cartridge with your left hand, insert the thumb and index finger of your right hand into the two holes in the front of the toner cartridge, and then insert the cartridge so that the guides on the cartridge fit into the rails in the cartridge compartment in the carousel.
12. Gently push the new toner cartridge into the printer.
13. Close the printer's front door.
The printer must complete a calibration cycle (up to 150 seconds) after any consumable has been replaced. If you open the door before the Ready indicator on the control panel lights up and the Error indicator turns off, the printer stops and repeats the calibration cycle.

Error: 929 Toner Sensor

A 929 Service Toner Sensor error indicates a problem with the toner sensor, the front harness cable, or the developer drive. It could also mean that the toner cartridge is defective. 
The most likely cause of this error is the toner cartridge itself. This is especially true if it is a new cartridge and the error started after you installed it. 
Take the cartridge out of the printer and locate the encoder wheel on the right-hand side of the cartridge. The encoder wheel can be found on the right side of the cartridge (usually over a bar code sticker). It is a thin, black, plastic wheel with small rectangular notches cut into it. This wheel will sometimes get stuck, but you can free it by turning it by hand.  
Try moving the wheel forwards and backwards a little. If it does not turn correctly, you will receive a 929 Toner Sensor error on the printer when you try to use the cartridge it is attached to. Note: The encoder wheel moves only a little bit each way. It should not make a complete revolution. If it does, the wheel is probably broken. 
Try to move it a little bit each way a couple of times to see if you can free it up. Caution! DO NOT force the wheel as you could break it. 
If the wheel on the toner cartridge is stuck, try another new toner cartridge. ( If you do not have another new toner cartridge available, an old toner cartridge or another cartridge from a working printer of the same model will also suffice for this test.) Power the printer off and install the second toner cartridge. Then power the printer back on. If another toner cartridge clears up the 929 error, the printer is fine and the problem is with the toner cartridge. If the error does not clear, there may be a problem with the printer. 
If you narrow down the problem to the toner cartridge, call the point of purchase and explain the situation to them. They may have a replacement policy. If they cannot help you, call our Technical Support Center and we will see what we can do to replace the cartridge that is causing the error. We will not be able to reimburse the price of the cartridge, but we can offer you an exchange. To do this, we may ask you to send in your cartridge first. Please note that we cannot offer an exchange on a refilled or refurbished cartridge. For this, you must go through the point of purchase.
Click here to order toner cartridges and other supplies for your printer.
If you receive this error with a second toner cartridge, you may want to check if the Front Harness Cable is plugged into the Toner Sensor. Do the following:
  
Turn off the printer and remove the toner cartridge. 
Look inside the printer at the place where the cartridge goes (on the right). You should see the Toner Sensor. On the back of the sensor assembly, you should be able to see a white cable connector. 
Push this white cable connector into the toner sensor assembly by pushing the connector towards the front of the printer. 
If you continue to receive the 929 error, your printer will probably need service. 

Source: Lexmark KnowledgeBase

The error is "toner cartridge error" you could try cleaning the contacts inside the printer (with the power off, of course). If that doesn't work you will need to try another cartridge.

Have you tried upadtaing the firmware?

it is printing with this blinking or not?