Dear Expert, I have a Lexmark X5150 printer but since a week ago has stopped printing. It shows this message "error 50C consult user guide". Unfortunately I do not have a user guide at hand. Could you please help me? Many thanks Kind Regards Paola 0044 28 90661028 I would really appreciate it if you could also give me a phone number where I can ring for technical support

Hi. The error tells you that your print cartridge has shorted. Here's a link to the Lexmark website to give some instructions on how to remedy the problem. Just click on this link: http://bit.ly/aSWvpk . Good luck!

Try these solutions from Lexmark online support: (apparently one of your print cartridges has shorted)

Lexmark X5150 Error 50C

Error messages; Error: "Cartridge Error 50C"; Cartridge error; Black cartridge missing; Color cartridge missing Solution Cartridge Error 50C
Your print cartridge has shorted.

1. Power off your All-in-One and unplug it.
   
2. Plug in your All-in-One again and turn it on.
   
3. Uninstall and then reinstall your cartridges.
   
4. If this does not resolve the issue, try the troubleshooting steps for the other cartridge errors below.
   

Error: Black Cartridge Missing
The black cartridge is not installed. (Install cartridge PN 82)
Error: Color Cartridge Missing
The color cartridge is not installed (Install cartridge PN 83)
Cartridge Error
Complete the following instructions:

1. Power off your All-in-One.
   
2. Use both hands to lift up the scanner unit until the scanner support holds it open.
   
3. Turn the All-in-One on. The print cartridge carrier moves and stops at the loading position, unless the All-in-One is busy.
   
4. Remove the color print cartridge.
   
5. Lower the scanner unit until it is completely closed.
   
6. If the error message reappears, replace the black print cartridge with a new print cartridge.
   If it does not repeat steps 1-3 and then go to step 7.
   
7. Reinstall the color cartridge and remove the black print cartridge.
   
8. Lower the scanner unit until it is completely closed.
   
9. If the error message occurs again, replace the color cartridge.
   
10. If an error message reappears, repeat steps 1-3 and reinstall both print cartridges.
    
11. Lower the scanner unit until it is completely closed.
    
12. If you receive the error message again, replace both cartridges.

Try this --
Cartridge Error 50C
Your print cartridge has shorted.

1. Power off your All-in-One and unplug it.
2. Plug in your All-in-One again and turn it on.
3. Uninstall and then reinstall your cartridges.
4. If this does not resolve the issue, try the troubleshooting steps for the other cartridge errors below.
   

Cartridge Error
Complete the following instructions:

1. Power off your All-in-One.
2. Use both hands to lift up the scanner unit until the scanner support holds it open.
3. Turn the All-in-One on. The print cartridge carrier moves and stops at the loading position, unless the All-in-One is busy.
4. Remove the color print cartridge.
5. Lower the scanner unit until it is completely closed.
6. If the error message reappears, replace the black print cartridge with a new print cartridge.
   If it does not repeat steps 1-3 and then go to step 7.
7. Reinstall the color cartridge and remove the black print cartridge.
8. Lower the scanner unit until it is completely closed.
9. If the error message occurs again, replace the color cartridge.
10. If an error message reappears, repeat steps 1-3 and reinstall both print cartridges.
11. Lower the scanner unit until it is completely closed.
12. If you receive the error message again, replace both cartridges

Try to reinstall the printer driver 

what make and model???
need more information.
every printer have its unique problem.

Cartridge Error 50C
Your print cartridge has shorted.

1. Power off your All-in-One and unplug it.
2. Plug in your All-in-One again and turn it on.
3. Uninstall and then reinstall your cartridges.If this does not resolve the issue then try the next steps.

1. Power off your All-in-One.
2. Use both hands to lift up the scanner unit until the scanner support holds it open.
3. Turn the All-in-One on. The print cartridge carrier moves and stops at the loading position, unless the All-in-One is busy.
4. Remove the color print cartridge.
5. Lower the scanner unit until it is completely closed.
6. If the error message reappears, replace the black print cartridge with a new print cartridge.
   If it does not repeat steps 1-3 and then go to step 7.
7. Reinstall the color cartridge and remove the black print cartridge.
8. Lower the scanner unit until it is completely closed.
9. If the error message occurs again, replace the color cartridge.
10. If an error message reappears, repeat steps 1-3 and reinstall both print cartridges.
11. Lower the scanner unit until it is completely closed.
12. If you receive the error message again, replace both cartridges.

Cartridge Error 50C
Your print cartridge has shorted.

1. Power off your All-in-One and unplug it.
2. Plug in your All-in-One again and turn it on.
3. Uninstall and then reinstall your cartridges.
4. If this does not resolve the issue, try the troubleshooting steps for the other cartridge errors below.

Error: Black Cartridge Missing
The black cartridge is not installed. (Install cartridge PN 82)

Error: Color Cartridge Missing
The color cartridge is not installed (Install cartridge PN 83)


Cartridge Error
Complete the following instructions:

1. Power off your All-in-One.
2. Use both hands to lift up the scanner unit until the scanner support holds it open.
3. Turn the All-in-One on. The print cartridge carrier moves and stops at the loading position, unless the All-in-One is busy.
4. Remove the color print cartridge.
5. Lower the scanner unit until it is completely closed.
6. If the error message reappears, replace the black print cartridge with a new print cartridge.
If it does not repeat steps 1-3 and then go to step 7.
7. Reinstall the color cartridge and remove the black print cartridge.
8. Lower the scanner unit until it is completely closed.
9. If the error message occurs again, replace the color cartridge.
10. If an error message reappears, repeat steps 1-3 and reinstall both print cartridges.
11. Lower the scanner unit until it is completely closed.
12. If you receive the error message again, replace both cartridges.

you need to buy the "original ink" it connot detect by generic ink.

I have one of these and it has had similar problems, errors not listed in the manual. I don't use mine much, so I took out the cartridges and cleaned them as well as the contacts and other surfaces. It didn't help. I replaced the black one and it works now. Your printer cartridges only last so long, even if you don't use them they expire and won't work. Once you remove the cellophane covering, they don't have a long life. Your printer will work without the color cartridge by the way. When the "no color cartridge" error appears, just click continue and it will print in black and white. Don't know if this helps, since your post is older, but I hope it does!!