Have put in a new colour cartridge but the note on the printer comes up error 50C

1. Make sure the printer is turned on.
2. Lift the printer's front cover.

NOTE: The ink cartridge should be in the up/loading position unless the printer is busy.

1. Squeeze the tabs on the cartridge lids and lift the cartridge lids up. The cartridge pops up when the lid is fully lifted.
2. Remove the cartridges.
3. Check and make sure that all of the protective tape has been removed from the contacts on the ink cartridge.
4. Replace the cartridges.
5. Snap the lids closed.
6. Close the printer's front cover.
7. When prompted on the printer's LCD to choose New or Old, choose Old.
8. Press the Select button.

Hope this helps. Please rate my response.
Thanks.
Have a good day.

this problem is most likely a damged, defective, or offbrand cartridge. that is what the error code 50C stands for. to test my theory, get an original lexmark black and color cartridge. don't buy it unless you have to. borrow it from a friend or from work. then, clean the inside of the printer with a vaccum and (using isopropal alchol). after performing these tasks, put the new cartridge in one at a time. Make sure you have one old and one new. for example, a new black and an old color. this will tell you which cartridge is defective and needs to be replaced. then fin yorself another company that sells the cartridges and try them.

Hi there Error 50c
All the best of luck

Regarding the Dell A940 "Error 50c"....the user guide doesn't seem to mention "Error 50c". They do, however, mention a "Cartridge Error" on page 52 of the manual. They claim this means that the printer has detected a short circuit (fuse/resister) in the cartridge. As you may or may not have noticed in the manual, this is what they recommend doing about it:

1) Press Power to turn the printer off.

2) Lift the printer cover/lid (scanner unit) until the scanner support holds it open.

3) Turn the printer on.
The ink cartridge carrier moves and stops at the loading position unless the printer is busy.

4) Remove the color ink cartridge.

5) Lower the printer (scanner unit) until it is completely closed.
If the error message displays again, replace the black cartridge with a new black cartridge.

If the error message does not display, repeat steps 1–3 and then go to step 6.

6) Reinstall the color cartridge and remove the black ink cartridge.

7) Lower the printer (scanner unit) until it is completely closed.

If the error message displays again, replace the color cartridge with a new
color cartridge.
If there is no error message (indicated by flashing lights), repeat steps 1–3 and then reinstall both ink cartridges.
8) Lower the printer (scanner unit) until it is completely closed.

If you get the error message again, while both cartridges are installed, replace both of the cartridges.

Basically, what they want you to determine is,....if the short circuit is with the "black ink" cartridge or the "color ink" cartridge and then replace the cartridge that has the problem.

You may have to buy a new cartrige.
Please all I ask is call back and just gave a vote, it will gave me some satisfaction to know am helping some one, so I will keep on helping.
All The Best: Pineworks

One of the cartridges is shorting. I removed the colour cartridge and no error came on. I overrode the cartridge missing and the printer works well. All I have to do is replace the colour cartridge or override everytime it is switched on. So simple, so why not in the user guide?

Hi there Error 50c

Dell gets this lots so have a try.

Regarding the Dell A940 "Error 50c"....the user guide doesn't seem to mention "Error 50c". They do, however, mention a "Cartridge Error" on page 52 of the manual. They claim this means that the printer has detected a short circuit (fuse/resister) in the cartridge. As you may or may not have noticed in the manual, this is what they recommend doing about it:

1) Press Power to turn the printer off.

2) Lift the printer cover/lid (scanner unit) until the scanner support holds it open.

3) Turn the printer on.
The ink cartridge carrier moves and stops at the loading position unless the printer is busy.

4) Remove the color ink cartridge.

5) Lower the printer (scanner unit) until it is completely closed.
If the error message displays again, replace the black cartridge with a new black cartridge.

If the error message does not display, repeat steps 1–3 and then go to step 6.

6) Reinstall the color cartridge and remove the black ink cartridge.

7) Lower the printer (scanner unit) until it is completely closed.

If the error message displays again, replace the color cartridge with a new
color cartridge.
If there is no error message (indicated by flashing lights), repeat steps 1–3 and then reinstall both ink cartridges.
8) Lower the printer (scanner unit) until it is completely closed.

If you get the error message again, while both cartridges are installed, replace both of the cartridges.

Basically, what they want you to determine is,....if the short circuit is with the "black ink" cartridge or the "color ink" cartridge and then replace the cartridge that has the problem.

You may have to buy a new cartrige.
Please all I ask is call back and just gave a vote, it will gave me some satisfaction to know am helping some one, so I will keep on helping.
All The Best: Pineworks

The "clear tape" that you are playing with is called the "encoder strip." A barcode is etched on it that tells the printer carriage where it is. If you clean this carefully (google encoder strip for best methods) you may be able to get rid of 502 error for a while.

Not sure about 50c.

Test your cartridges.

Remove the color ink cartridge then lower the cover of your printer. If the error message displays again, replace the black cartridge with a new one (or return the new one). Reinstall the color cartridge and remove the black ink cartridge then lower the cover. If the error message displays again, replace the color cartridge with a new color cartridge.
Note: My manual indicated that the printer might have detected a short circuit in a cartridge. I returned a month old black cartridge got a new one and my printer is working fine now. Good luck.

I went to the Lexmark site and downloaded the manual. Looked for my problem 'Cartridge Error 50c' and found that my color ink was empty. It took some playing around, but that was it.

I had the same error message 50c and "color Ink low". I knew that I still had Black Ink, and that is what I just needed for the moment, so I removed the color Ink cartridge and it started working. You'll get a message 'print cartridge missing' but just press continue.
Hope this helps,
MPTMPeru

I removed the color cartridge and left the black one. it worked.
(I have Lexmark X6100 Series)